/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* Hide all scrollbars everywhere (page, dropdown, editor, reader, modals,
   code blocks, tabs) while keeping scrolling intact. */
html, body { scrollbar-width: none; -ms-overflow-style: none; }
html::-webkit-scrollbar, body::-webkit-scrollbar { width: 0; height: 0; display: none; }
* { scrollbar-width: none; -ms-overflow-style: none; }
*::-webkit-scrollbar { width: 0; height: 0; display: none; }

body {
  --sp-radius: 12px;
  --sp-error: #cf222e;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px; line-height: 1.6; color: #1f2328; background: #f8f9fa;
  transition: background 0.3s, color 0.3s;
}
.workspace {
  display: grid; grid-template-columns: 240px minmax(0, 1fr) 300px;
  grid-template-areas: "left main media"; gap: 24px; align-items: start;
  width: 100%; max-width: 1680px; margin: 0 auto 80px; padding: 24px;
}
.workspace-rail { display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.left-rail { grid-area: left; }
.right-rail { grid-area: media; }
.app-wrapper { grid-area: main; width: 100%; min-width: 0; max-width: 920px; margin: 0 auto; padding: 0; }
a { color: #0969da; text-decoration: none; }
a:hover { text-decoration: underline; }
.hidden { display: none !important; }

/* ===== Top Bar ===== */
.site-brand {
  display: flex; align-items: center; gap: 0.6rem;
  min-height: 40px;
  font-family: inherit; font-size: 1rem; font-weight: 700;
  letter-spacing: -0.03em; color: inherit;
}
.site-brand svg { flex-shrink: 0; }
.brand-book {
  display: grid; place-items: center; flex-shrink: 0; width: 40px; height: 40px;
  padding: 4px; color: inherit; background: transparent; border: 0; border-radius: 8px; cursor: pointer;
  transition: transform 0.15s;
}
.brand-book:hover { transform: rotate(-6deg); }
.brand-book:focus-visible { outline: 2px solid var(--sp-accent, #0969da); outline-offset: 3px; }
/* ===== Study library and timer ===== */
.library-panel, .timer-panel, .checklist-panel {
  width: 100%; display: flex; flex-direction: column; min-width: 0;
  color: var(--sp-text, #1f2328); background: var(--sp-surface, #fff);
  border: 1px solid var(--sp-border, #d0d7de); border-radius: var(--sp-radius, 10px);
  box-shadow: 0 3px 14px rgba(0,0,0,0.04); font-size: 0.8rem;
}
.library-heading {
  display: flex; align-items: center; gap: 0.6rem; width: 100%; padding: 0.8rem;
  border: 0; background: transparent; color: inherit; font: inherit; font-weight: 600;
  cursor: pointer; text-align: left; flex-shrink: 0;
}
.library-heading span:first-of-type { flex: 1; }
.library-heading svg { color: var(--sp-accent, #0969da); }
.library-body { padding: 0 1rem 1rem; min-width: 0; }
.library-caption { font-size: 0.72rem; opacity: 0.8; margin: 0.5rem 0; overflow-wrap: anywhere; }
.library-section-title { font-size: 0.73rem; font-weight: 600; margin-top: 0.7rem; }
.library-download {
  display: block; width: 100%; padding: 0.55rem; border: 1px solid var(--sp-accent, #0969da);
  color: var(--sp-accent, #0969da); background: color-mix(in srgb, var(--sp-accent, #0969da) 5%, transparent); font-weight: 600;
  border-radius: var(--sp-radius, 6px); margin-top: 0.5rem; font-size: 0.74rem;
}
.library-panel button:hover:not(:disabled), .library-drop:hover { background: color-mix(in srgb, currentColor 8%, transparent); }
.library-files { list-style: none; max-height: 300px; overflow-y: auto; margin-block: 0.5rem; }
.library-file { display: block; width: 100%; text-align: left; padding: 0.5rem; font: inherit; font-size: 0.76rem; color: inherit; border: 0; border-radius: 6px; background: transparent; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: grab; }
.library-row { display: flex; align-items: center; gap: 0.2rem; min-width: 0; }
.library-row .library-file { flex: 1; min-width: 0; }
.library-file[aria-current="true"] { background: color-mix(in srgb, var(--sp-accent, #0969da) 10%, transparent); }
.library-unsaved { display: inline-flex; flex-shrink: 0; color: var(--sp-accent, #0969da); }
.library-action { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; padding: 0.4rem; border: 0; border-radius: 4px; color: inherit; background: transparent; cursor: pointer; }
.library-rename-form { display: flex; align-items: center; gap: 0.2rem; min-width: 0; width: 100%; padding-block: 0.25rem; }
.library-rename-input { min-width: 0; flex: 1; padding: 0.4rem; color: inherit; background: var(--sp-surface, #fff); border: 1px solid var(--sp-accent, #0969da); border-radius: 4px; font: inherit; font-size: 0.76rem; }
.library-drop { display: block; text-align: center; padding: 0.85rem 0.35rem; margin-top: 0.8rem; border: 1px dashed var(--sp-border, #d0d7de); border-radius: var(--sp-radius, 6px); cursor: pointer; }
.library-drop span { font-size: 0.7rem; opacity: 0.7; }
.library-drag-over { outline: 2px dashed var(--sp-accent, #0969da); outline-offset: -3px; }
.library-status { margin-top: 0.5rem; font-size: 0.75rem; overflow-wrap: anywhere; }
.library-status:empty { display: none; }
.library-status.error, .document-status { color: var(--sp-error); }
.document-status { font-size: 0.75rem; }
.study-quote {
  display: flex; align-items: center; justify-content: center;
  min-height: 40px; margin: 0; padding: 0 0.5rem;
  font-family: "Lora", Georgia, serif; font-size: 0.95rem; font-style: italic;
  line-height: 1.3; text-align: center; opacity: 0.75;
}
.library-panel :focus-visible, .timer-panel :focus-visible, .checklist-panel :focus-visible { outline: 2px solid var(--sp-accent, #0969da); outline-offset: 2px; }
.settings-text { display: block; width: 100%; margin-block: 0.5rem; padding: 0.6rem; color: var(--sp-text); background: var(--sp-surface); border: 1px solid var(--sp-border); border-radius: 6px; font: 0.85rem ui-monospace, monospace; resize: vertical; }
.timer-panel, .checklist-panel { padding: 1rem; }
.timer-panel h2, .checklist-panel h2 { font-size: 0.82rem; }
.timer-header { display: flex; align-items: start; justify-content: space-between; gap: 0.5rem; }
.timer-header .library-status { margin: 0; max-width: 55%; text-align: right; font-size: 0.7rem; }
.timer-status { color: inherit; background: transparent; border: 0; padding: 0; font: inherit; text-align: inherit; cursor: pointer; }
.timer-panel .timer-status:disabled { opacity: 1; cursor: default; }
.timer-readout { display: flex; flex: 1; flex-direction: column; justify-content: center; padding: 1.5rem 0; }
.timer-display { display: block; font-family: ui-monospace, Consolas, monospace; font-size: clamp(2rem, 6vw, 3.25rem); font-weight: 600; font-variant-numeric: tabular-nums; text-align: center; margin: 0.65rem 0; line-height: 1.3; }
.timer-technique { min-height: 3.1em; font-size: 0.75rem; line-height: 1.55; text-align: center; opacity: 0.7; }
.timer-presets { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem; margin-bottom: 0.75rem; }
.timer-preset {
  display: flex; flex-direction: column; gap: 0.25rem; min-width: 0; padding: 0.65rem 0.4rem;
  color: var(--sp-text); background: var(--sp-surface); border: 1px solid var(--sp-border);
  border-radius: 6px; font: inherit; font-size: 0.75rem; cursor: pointer;
}
.timer-preset small { font-size: 0.65rem; opacity: 0.65; }
.timer-preset[aria-pressed="true"] { border-color: var(--sp-accent); background: color-mix(in srgb, var(--sp-accent) 8%, var(--sp-surface)); }
.timer-preset:hover:not(:disabled) { border-color: var(--sp-accent); }
.timer-fields, .timer-actions { display: flex; gap: 0.5rem; margin-top: 0.6rem; }
.timer-fields label { flex: 1; min-width: 0; font-size: 0.72rem; }
.timer-fields input, .timer-actions button, .saved-media select { width: 100%; min-width: 0; font: inherit; padding: 0.45rem; color: var(--sp-text); background: var(--sp-surface); border: 1px solid var(--sp-border); border-radius: 6px; }
.timer-fields input { display: block; margin-top: 0.3rem; }
.timer-actions button { flex: 1; cursor: pointer; font-size: 0.75rem; }
.timer-actions button[type="submit"] { color: var(--sp-accent); border-color: var(--sp-accent); font-weight: 600; }
.timer-panel :disabled { opacity: 0.5; cursor: not-allowed; }
.timer-finished { position: fixed; inset: 0; width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 1.5rem; border: 0; color: var(--sp-text); background: color-mix(in srgb, var(--sp-surface) 95%, transparent); }
.timer-finished::backdrop { background: rgba(0,0,0,0.65); }
.timer-alert { display: flex; min-height: 100%; flex-direction: column; align-items: center; justify-content: center; gap: 2rem; text-align: center; }
.timer-alert h2 { font-size: clamp(2rem, 6vw, 4.5rem); line-height: 1.2; }
.timer-alert button { padding: 0.8rem 2rem; }
.timer-panel { scroll-margin-top: 1rem; }
.timer-floating {
  position: fixed; top: max(1rem, env(safe-area-inset-top)); right: max(1rem, env(safe-area-inset-right)); z-index: 80;
  display: flex; align-items: center; gap: 1rem; max-width: calc(100vw - 2rem); padding: 0.65rem 0.9rem;
  color: var(--sp-text, #1f2328); background: var(--sp-surface, #fff);
  border: 1px solid var(--sp-border, #d0d7de); border-radius: var(--sp-radius, 10px);
  box-shadow: 0 4px 20px #0002; font: inherit; text-align: left; cursor: pointer;
}
.timer-floating-label { display: grid; gap: 0.1rem; font-size: 0.7rem; font-weight: 600; }
.timer-floating-label > span { font-size: 0.65rem; font-weight: 400; opacity: 0.75; }
.timer-floating-display { font: 600 1.25rem ui-monospace, Consolas, monospace; font-variant-numeric: tabular-nums; }
.timer-floating[data-status="running"] { border-color: var(--sp-accent, #0969da); }
.timer-floating:focus-visible { outline: 2px solid var(--sp-accent, #0969da); outline-offset: 3px; }

.motivation-dialog {
  width: min(580px, calc(100vw - 1rem)); max-width: none; max-height: calc(100dvh - 1rem);
  margin: auto; padding: 0.75rem 1rem 1.25rem; border: 0; background: transparent; color: var(--sp-text, #1f2328);
}
.motivation-dialog::backdrop { background: #101528a8; backdrop-filter: blur(4px); }
.motivation-comic {
  padding: clamp(1rem, 4vw, 1.75rem); border: 3px solid var(--sp-text, #1f2328);
  border-radius: 12px 24px 16px 10px; box-shadow: 7px 8px 0 var(--sp-accent, #0969da);
  background: radial-gradient(var(--sp-border, #d0d7de) 1px, transparent 1px) 0 0 / 9px 9px, var(--sp-surface, #fff);
}
.motivation-header { display: flex; justify-content: space-between; align-items: start; gap: 0.75rem; }
.motivation-kicker { font-family: inherit; font-size: 0.65rem; font-weight: 600; line-height: 1.5; letter-spacing: 0.06em; text-transform: uppercase; }
.motivation-kicker > span { white-space: nowrap; margin-left: 0.3rem; }
.motivation-header h2 { font: 400 clamp(2rem, 6vw, 3rem)/1.1 "Bangers", Impact, sans-serif; letter-spacing: 0.04em; margin-top: 0.3rem; }
.motivation-close {
  display: grid; place-items: center; flex-shrink: 0; width: 36px; height: 36px; padding: 0;
  color: inherit; background: var(--sp-surface, #fff); border: 2px solid currentColor; border-radius: 50%;
  font: inherit; font-size: 1.5rem; line-height: 1; cursor: pointer;
}
.motivation-bubble {
  position: relative; margin: 1.5rem 0 2rem; padding: clamp(1rem, 4vw, 1.6rem);
  border: 3px solid currentColor; border-radius: 30px 28px 28px 8px;
  color: inherit; background: var(--sp-surface, #fff);
  font: 400 clamp(1.35rem, 4vw, 1.8rem)/1.4 "Patrick Hand", cursive; overflow-wrap: anywhere;
}
.motivation-bubble::after {
  content: ""; position: absolute; bottom: -16px; left: 28px; width: 23px; height: 24px;
  border-left: 3px solid currentColor; border-bottom: 3px solid currentColor;
  background: var(--sp-surface, #fff); transform: skewY(-32deg);
}
.motivation-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.motivation-actions button {
  padding: 0.55rem 0.75rem; color: inherit; background: var(--sp-surface, #fff);
  border: 2px solid currentColor; border-radius: 6px; box-shadow: 2px 2px 0 currentColor;
  font: inherit; font-size: 0.75rem; font-weight: 600; cursor: pointer;
}
.motivation-actions button:first-child { color: var(--sp-surface, #fff); background: var(--sp-text, #1f2328); border-color: var(--sp-text, #1f2328); }
.motivation-actions button:disabled { opacity: 0.5; cursor: not-allowed; box-shadow: none; }
.motivation-credit { margin-top: 1rem; font-size: 0.65rem; opacity: 0.8; }
.motivation-credit a { color: inherit; text-decoration: underline; }
.motivation-dialog :focus-visible { outline: 2px solid var(--sp-accent, #0969da); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) {
  .brand-book { transition: none; }
  .brand-book:hover { transform: none; }
}
.saved-media { display: grid; gap: 0.4rem; padding: 0 0.75rem 0.8rem; font-size: 0.74rem; }
.saved-media label { opacity: 0.75; }
.saved-media a { color: var(--sp-accent); }
.saved-playlists > summary { padding: 0.5rem 0.75rem; font-size: 0.74rem; cursor: pointer; }
.checklist-form { display: flex; gap: 0.4rem; margin-top: 0.75rem; }
.checklist-form input, .checklist-form button, .checklist-remove {
  min-width: 0; padding: 0.45rem; color: var(--sp-text); background: var(--sp-surface);
  border: 1px solid var(--sp-border); border-radius: 6px; font: inherit;
}
.checklist-form input { flex: 1; width: 100%; }
.checklist-form button, .checklist-remove { cursor: pointer; }
.checklist-items { list-style: none; max-height: 300px; overflow-y: auto; }
.checklist-items li { display: flex; align-items: start; gap: 0.5rem; margin-top: 0.65rem; }
.checklist-items label { display: flex; align-items: baseline; gap: 0.5rem; flex: 1; min-width: 0; overflow-wrap: anywhere; cursor: pointer; }
.checklist-items input { accent-color: var(--sp-accent); }
.checklist-items .completed span { text-decoration: line-through; opacity: 0.55; }
.checklist-remove { flex-shrink: 0; padding: 0 0.35rem; }
.top-bar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; min-height: 40px; gap: 0.75rem;
}
.top-bar-left { flex: 1; min-width: 0; overflow: hidden; display: flex; align-items: center; }
.top-bar-right { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border: 1px solid #d0d7de; border-radius: 6px;
  background: #fff; color: #656d76; cursor: pointer; transition: all 0.15s;
}
.icon-btn:hover { background: #f3f4f6; color: #1f2328; }

/* ===== Tab Bar ===== */
.tab-bar { display: flex; gap: 0.25rem; overflow-x: auto; padding-bottom: 2px; }
.tab-bar::-webkit-scrollbar { height: 0; }

.tab {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.3rem 0.6rem; font-size: 0.8rem; font-weight: 500;
  color: #656d76; background: transparent; border: 1px solid #d0d7de;
  border-radius: 5px; cursor: pointer; white-space: nowrap;
  max-width: 160px; transition: all 0.15s;
}
.tab:hover { background: #f3f4f6; color: #1f2328; }
.tab.active { background: #0969da; color: #fff; border-color: #0969da; }
.tab-name { overflow: hidden; text-overflow: ellipsis; }
.tab-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; border: 1px solid rgba(128,128,128,0.45); }
.tab-close {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border: none; background: transparent;
  color: inherit; font-size: 0.9rem; cursor: pointer; border-radius: 3px;
  opacity: 0.6; flex-shrink: 0; line-height: 1;
}
.tab-close:hover { opacity: 1; background: rgba(0,0,0,0.1); }

/* ===== Theme Dropdown ===== */
/* ===== Add Tab Button ===== */
.add-tab-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border: 1px solid #d0d7de; border-radius: 5px;
  background: transparent; color: #656d76; font-size: 1.1rem; font-weight: 400;
  cursor: pointer; transition: all 0.15s; flex-shrink: 0; line-height: 1;
  margin-left: 0.15rem;
}
.add-tab-btn:hover { background: #f3f4f6; color: #1f2328; border-color: #afb8c1; }

.theme-dropdown { position: relative; }
.theme-menu {
  position: absolute; top: calc(100% + 6px); right: 0; z-index: 100;
  background: #fff; border: 1px solid #d0d7de; border-radius: 8px;
  padding: 0.3rem; min-width: 220px; max-height: min(60vh, 460px); overflow-y: auto;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.theme-menu-title {
  padding: 0.35rem 0.7rem 0.45rem; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: #656d76;
  border-bottom: 1px solid #ececf1; margin-bottom: 0.25rem;
}
.theme-group { margin-bottom: 0.1rem; }
.theme-family > summary {
  display: flex; justify-content: space-between; gap: 1rem; padding: 0.65rem 0.7rem;
  color: var(--sp-text, #1f2328); font-size: 0.82rem; font-weight: 600; cursor: pointer; list-style: none;
}
.theme-family > summary::-webkit-details-marker { display: none; }
.theme-family > summary::after { content: "+"; opacity: 0.65; }
.theme-family[open] > summary::after { content: "-"; }
.theme-family:has(.theme-option.active) > summary { box-shadow: inset 3px 0 var(--sp-accent, #0969da); }
.theme-family + .theme-family { border-top: 1px solid var(--sp-border, #d0d7de); }
.theme-family-items { padding: 0 0.15rem 0.4rem; }
.theme-group-header {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  background: transparent; border: none; cursor: pointer;
}
.theme-group-header.theme-group-label {
  padding: 0.45rem 0.7rem 0.2rem; font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--group-label, #afb8c1);
}
.theme-caret { font-size: 0.7rem; transition: transform 0.15s; }
.theme-group.collapsed .theme-caret { transform: rotate(-90deg); }
.theme-group.collapsed .theme-group-items { display: none; }
.theme-option {
  display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  width: 100%; text-align: left;
  padding: 0.4rem 0.7rem; font-size: 0.82rem; color: #1f2328;
  background: transparent; border: none; border-radius: 5px;
  cursor: pointer; transition: background 0.12s;
}
.theme-check { font-size: 0.75rem; opacity: 0; }
.theme-option.active .theme-check { opacity: 1; }
.theme-option:hover { background: #f3f4f6; }
.theme-option.active { background: #0969da; color: #fff; }

.theme-menu { user-select: none; }

/* ===== Upload Screen ===== */
.upload-screen {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; min-height: 70vh; text-align: center;
}
.logo { font-size: 2.5rem; font-weight: 700; color: #1f2328; letter-spacing: -0.03em; margin-bottom: 0.5rem; transition: color 0.3s; }
.subtitle { color: #656d76; font-size: 1.05rem; margin-bottom: 2.5rem; transition: color 0.3s; }
.drop-zone { width: 100%; max-width: 520px; }
.drop-zone-inner {
  border: 2px dashed #d0d7de; border-radius: 12px; padding: 3rem 2rem;
  background: #fff; transition: border-color 0.2s, background 0.2s; cursor: default;
}
.drop-zone.drag-over .drop-zone-inner { border-color: #0969da; background: #f0f6ff; }
.upload-icon { width: 48px; height: 48px; color: #afb8c1; margin-bottom: 1rem; }
.drop-text { font-size: 1rem; color: #1f2328; margin-bottom: 0.35rem; }
.drop-or { font-size: 0.85rem; color: #afb8c1; margin-bottom: 1rem; }
.btn-pick {
  display: inline-block; padding: 0.55rem 1.5rem; font-size: 0.9rem; font-weight: 500;
  color: #fff; background: #0969da; border-radius: 6px; cursor: pointer; transition: background 0.15s;
}
.btn-pick:hover { background: #0860ca; }

/* ===== Viewer ===== */
.viewer-screen { margin-top: 0; }

/* ===== Markdown Body (Default) ===== */
.markdown-body {
  background: #fff; border: 1px solid #d0d7de; border-radius: 6px;
  padding: 2rem 2.5rem; word-wrap: break-word; overflow-x: auto;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}
.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4,.markdown-body h5,.markdown-body h6 {
  margin-top: 1.5rem; margin-bottom: 0.75rem; font-weight: 600; line-height: 1.25; color: #1f2328;
}
.markdown-body h1 { font-size: 2rem; padding-bottom: 0.5rem; border-bottom: 1px solid #d0d7de; }
.markdown-body h2 { font-size: 1.5rem; padding-bottom: 0.4rem; border-bottom: 1px solid #d0d7de; }
.markdown-body h3 { font-size: 1.25rem; }
.markdown-body h4 { font-size: 1rem; }
.markdown-body h5 { font-size: 0.875rem; }
.markdown-body h6 { font-size: 0.85rem; color: #656d76; }
.markdown-body p { margin-bottom: 1rem; }
.markdown-body ul,.markdown-body ol { padding-left: 2rem; margin-bottom: 1rem; }
.markdown-body li + li { margin-top: 0.25rem; }
.markdown-body blockquote { padding: 0.25rem 1rem; margin: 0 0 1rem; border-left: 0.25rem solid #d0d7de; color: #656d76; }
.markdown-body blockquote > :last-child { margin-bottom: 0; }
.markdown-body code {
  padding: 0.2em 0.4em; font-size: 85%; background: rgba(175,184,193,0.2); border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
.markdown-body pre { padding: 1rem; margin-bottom: 1rem; font-size: 85%; line-height: 1.45; background-color: #f6f8fa; border-radius: 6px; overflow: auto; }
.markdown-body pre code { padding: 0; background: transparent; border-radius: 0; font-size: 100%; }
.markdown-body table { border-spacing: 0; border-collapse: collapse; width: 100%; margin-bottom: 1rem; }
.markdown-body th,.markdown-body td { padding: 0.4rem 0.85rem; border: 1px solid #d0d7de; }
.markdown-body th { font-weight: 600; background: #f6f8fa; }
.markdown-body tr:nth-child(2n) { background: #f6f8fa; }
.markdown-body img { max-width: 100%; border-radius: 4px; }
.markdown-body hr { height: 0.25rem; margin: 1.5rem 0; border: 0; background-color: #d0d7de; }
.markdown-body a { color: #0969da; }
.markdown-body strong { font-weight: 600; }

/* ===== Math (KaTeX) ===== */
.markdown-body .math-inline { white-space: normal; }
.markdown-body .math-block { display: block; margin: 0.35rem 0; }
.markdown-body .katex { font-size: 1.06em; line-height: 1.35; }
.markdown-body .katex-display { margin: 0.9rem 0; overflow-x: auto; overflow-y: hidden; }
.markdown-body .katex-display > .katex { white-space: nowrap; text-align: left; }
.markdown-body .katex-display > .katex > .katex-html { white-space: nowrap; }
.markdown-body td .katex, .markdown-body th .katex { font-size: 1.02em; }
.markdown-body td .katex-display, .markdown-body th .katex-display { margin: 0.2rem 0; }
/* ===== Click-to-reveal footnotes (<details> blocks) ===== */
.markdown-body details { margin: 0 0 1rem; padding: 0.5rem 0.9rem; border: 1px solid #d0d7de; border-left: 3px solid #0969da; border-radius: 6px; background: rgba(9,105,218,0.045); }
.markdown-body details > summary { cursor: pointer; font-weight: 600; font-size: 0.92em; color: #0969da; list-style: none; user-select: none; }
.markdown-body details > summary::-webkit-details-marker { display: none; }
.markdown-body details > summary::before { content: "\25B8"; margin-right: 0.45rem; font-size: 0.9em; }
.markdown-body details[open] > summary::before { content: "\25BE"; }
.markdown-body details > summary:hover { text-decoration: underline; }
.markdown-body details[open] > summary { margin-bottom: 0.55rem; padding-bottom: 0.35rem; border-bottom: 1px dashed #d0d7de; }
.markdown-body details > :last-child { margin-bottom: 0; }
.markdown-body .math-error { color: #cf222e; }

/* ===== AI Float Button ===== */
.ai-float-btn {
  position: fixed; z-index: 90;
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.4rem 0.75rem; font-size: 0.78rem; font-weight: 600;
  color: #fff; background: #0969da; border: none; border-radius: 6px;
  cursor: pointer; box-shadow: 0 2px 10px rgba(0,0,0,0.15);
  transition: background 0.15s;
}
.ai-float-btn:hover { background: #0860ca; }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.4); display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.modal {
  background: #fff; border-radius: 10px; width: 100%; max-width: 560px;
  max-height: 80vh; display: flex; flex-direction: column;
  box-shadow: 0 8px 30px rgba(0,0,0,0.18); overflow: hidden;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem 1.2rem; border-bottom: 1px solid #e8e8e8;
}
.modal-header h3 { font-size: 1rem; font-weight: 600; color: #1f2328; }
.modal-close {
  width: 28px; height: 28px; border: none; background: transparent;
  font-size: 1.3rem; color: #656d76; cursor: pointer; border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: #f3f4f6; color: #1f2328; }
.modal-body { padding: 1.2rem; overflow-y: auto; }

/* AI modal specifics */
.ai-selection-preview {
  padding: 0.6rem 0.8rem; margin-bottom: 0.8rem;
  background: #f6f8fa; border-left: 3px solid #0969da; border-radius: 4px;
  font-size: 0.85rem; color: #444; max-height: 120px; overflow-y: auto;
  white-space: pre-wrap; word-wrap: break-word;
}
.ai-input-row { display: flex; gap: 0.5rem; }
.ai-input-row input {
  flex: 1; padding: 0.5rem 0.75rem; font-size: 0.88rem;
  border: 1px solid #d0d7de; border-radius: 6px; outline: none;
  transition: border-color 0.15s;
}
.ai-input-row input:focus { border-color: #0969da; }
.ai-send-btn {
  padding: 0.5rem 1rem; font-size: 0.85rem; font-weight: 600;
  color: #fff; background: #0969da; border: none; border-radius: 6px;
  cursor: pointer; transition: background 0.15s; white-space: nowrap;
}
.ai-send-btn:hover { background: #0860ca; }
.ai-response {
  margin-top: 1rem; padding: 0.8rem 1rem;
  background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: 6px;
  font-size: 0.88rem; line-height: 1.6; color: #1f2328;
  white-space: pre-wrap; word-wrap: break-word;
}
.ai-response.error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.ai-response.loading { color: #656d76; font-style: italic; }

/* Settings */
.settings-label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 0.3rem; color: #1f2328; }
.settings-hint { font-size: 0.8rem; color: #656d76; margin-bottom: 0.8rem; }
.settings-hint a { color: #0969da; }
.settings-saved { margin-top: 0.6rem; font-size: 0.8rem; color: #1a7f37; font-weight: 500; }

/* ===== Editor Toolbar ===== */
.editor-bar {
  display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 1rem; min-height: 48px; padding: 0.45rem 0.6rem;
  background: var(--sp-surface, #fff); border: 1px solid var(--sp-border, #d0d7de);
  border-radius: var(--sp-radius);
}
.mode-toggle { display: inline-flex; border: 1px solid rgba(128,128,128,0.4); border-radius: 7px; overflow: hidden; }
.mode-btn {
  appearance: none; border: none; background: transparent; font: inherit;
  font-size: 0.82rem; padding: 0.38rem 0.95rem; cursor: pointer;
  color: inherit; opacity: 0.6; transition: background 0.15s, opacity 0.15s;
}
.mode-btn + .mode-btn { border-left: 1px solid rgba(128,128,128,0.4); }
.mode-btn:hover { opacity: 0.9; }
.mode-btn.active { opacity: 1; font-weight: 600; background: rgba(128,128,128,0.18); }
.editor-hint { min-width: 0; max-width: 40%; font-size: 0.78rem; color: inherit; opacity: 0.6; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.document-status:empty { display: none; }
.editor-spacer { flex: 1 1 auto; }

/* ===== Markdown Editor Textarea (auto-themes via inherit) ===== */
.editor-input {
  display: block; width: 100%; box-sizing: border-box; min-height: 60vh;
  background: transparent; color: inherit;
  border: 1px solid rgba(128,128,128,0.4); border-radius: 8px;
  padding: 1rem 1.1rem; outline: none; resize: vertical; tab-size: 2;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9rem; line-height: 1.6;
}
.editor-input:focus { border-color: rgba(128,128,128,0.75); }
.editor-input::placeholder { color: rgba(128,128,128,0.6); }

/* ===== Help / Syntax Guide Modal ===== */
.modal-wide { max-width: 760px; }
.help-body { font-size: 0.9rem; line-height: 1.55; }
.help-lead { margin-bottom: 1rem; opacity: 0.85; }
.help-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem 1rem; margin-bottom: 1rem; }
.help-grid section h4, .help-grid section h5 { margin: 0 0 0.3rem; font-size: 0.86rem; }
.help-grid section p { margin: 0 0 0.35rem; font-size: 0.82rem; opacity: 0.85; }
.help-sub { margin: 1.2rem 0 0.5rem; font-size: 0.95rem; }
.help-body pre { margin: 0.35rem 0 0; padding: 0.5rem 0.6rem; background: rgba(128,128,128,0.12); border-radius: 6px; overflow-x: auto; }
.help-body pre code { font-family: ui-monospace, Consolas, monospace; font-size: 0.8rem; white-space: pre; background: transparent; padding: 0; }
.help-body :not(pre) > code { padding: 0.1em 0.35em; background: rgba(128,128,128,0.18); border-radius: 4px; font-family: ui-monospace, Consolas, monospace; font-size: 0.82em; }
.help-rules { margin: 0.5rem 0 0; padding-left: 1.1rem; }
.help-rules li { margin: 0.25rem 0; }
.help-foot { margin-top: 1rem; font-size: 0.82rem; opacity: 0.75; }

/* ===== THEME: SCI-FI ===== */
body[data-theme="scifi"] { font-family: "Outfit", sans-serif; color: #c8d6e5; background: #0a0e17; }
body[data-theme="scifi"] .icon-btn { background: #0f1520; border-color: #1a2744; color: #6b7fa3; }
body[data-theme="scifi"] .icon-btn:hover { color: #00e5ff; background: #111b2e; border-color: #00e5ff; }
body[data-theme="scifi"] .theme-menu { background: #0f1520; border-color: #1a2744; box-shadow: 0 4px 16px rgba(0,229,255,0.08); }
body[data-theme="scifi"] .theme-group-label { color: #2a3a55; }
body[data-theme="scifi"] .theme-option { color: #6b7fa3; }
body[data-theme="scifi"] .theme-option:hover { color: #00e5ff; background: #111b2e; }
body[data-theme="scifi"] .theme-option.active { background: #00e5ff; color: #0a0e17; }
body[data-theme="scifi"] .tab { color: #6b7fa3; border-color: #1a2744; }
body[data-theme="scifi"] .tab:hover { color: #00e5ff; background: #111b2e; }
body[data-theme="scifi"] .tab.active { background: #00e5ff; color: #0a0e17; border-color: #00e5ff; }
body[data-theme="scifi"] .add-tab-btn { border-color: #1a2744; color: #6b7fa3; }
body[data-theme="scifi"] .add-tab-btn:hover { color: #00e5ff; background: #111b2e; border-color: #00e5ff; }
body[data-theme="scifi"] .logo { font-family: "Orbitron", sans-serif; color: #00e5ff; text-shadow: 0 0 20px rgba(0,229,255,0.4); }
body[data-theme="scifi"] .subtitle { color: #5a6f8a; }
body[data-theme="scifi"] .drop-zone-inner { border-color: #1a2744; background: #0f1520; }
body[data-theme="scifi"] .drop-zone.drag-over .drop-zone-inner { border-color: #00e5ff; background: #111b2e; box-shadow: 0 0 25px rgba(0,229,255,0.15); }
body[data-theme="scifi"] .upload-icon { color: #1a2744; }
body[data-theme="scifi"] .drop-text { color: #c8d6e5; }
body[data-theme="scifi"] .drop-or { color: #2a3a55; }
body[data-theme="scifi"] .btn-pick { background: #00e5ff; color: #0a0e17; }
body[data-theme="scifi"] .btn-pick:hover { background: #33eaff; box-shadow: 0 0 15px rgba(0,229,255,0.3); }
body[data-theme="scifi"] .markdown-body { background: #0f1520; border-color: #1a2744; color: #c8d6e5; }
body[data-theme="scifi"] .markdown-body h1,body[data-theme="scifi"] .markdown-body h2,body[data-theme="scifi"] .markdown-body h3,body[data-theme="scifi"] .markdown-body h4,body[data-theme="scifi"] .markdown-body h5,body[data-theme="scifi"] .markdown-body h6 { color: #00e5ff; }
body[data-theme="scifi"] .markdown-body h1 { border-bottom-color: #1a2744; text-shadow: 0 0 12px rgba(0,229,255,0.25); }
body[data-theme="scifi"] .markdown-body h2 { border-bottom-color: #1a2744; }
body[data-theme="scifi"] .markdown-body h6 { color: #5a6f8a; }
body[data-theme="scifi"] .markdown-body a { color: #00e5ff; }
body[data-theme="scifi"] .markdown-body blockquote { border-left-color: #00e5ff; color: #5a6f8a; background: rgba(0,229,255,0.03); }
body[data-theme="scifi"] .markdown-body code { background: rgba(0,229,255,0.1); color: #00e5ff; }
body[data-theme="scifi"] .markdown-body pre { background: #0a0e17; border: 1px solid #1a2744; }
body[data-theme="scifi"] .markdown-body pre code { color: #c8d6e5; }
body[data-theme="scifi"] .markdown-body th,body[data-theme="scifi"] .markdown-body td { border-color: #1a2744; }
body[data-theme="scifi"] .markdown-body th { background: #111b2e; color: #00e5ff; }
body[data-theme="scifi"] .markdown-body tr:nth-child(2n) { background: rgba(0,229,255,0.03); }
body[data-theme="scifi"] .markdown-body hr { background: #1a2744; }
body[data-theme="scifi"] .markdown-body strong { color: #e0ecff; }
body[data-theme="scifi"] .ai-float-btn { background: #00e5ff; color: #0a0e17; box-shadow: 0 0 12px rgba(0,229,255,0.3); }
body[data-theme="scifi"] .modal { background: #0f1520; }
body[data-theme="scifi"] .modal-header { border-bottom-color: #1a2744; }
body[data-theme="scifi"] .modal-header h3 { color: #00e5ff; }
body[data-theme="scifi"] .modal-close { color: #6b7fa3; }
body[data-theme="scifi"] .modal-close:hover { background: #111b2e; color: #00e5ff; }
body[data-theme="scifi"] .ai-selection-preview { background: #0a0e17; border-left-color: #00e5ff; color: #c8d6e5; }
body[data-theme="scifi"] .ai-input-row input { background: #0a0e17; border-color: #1a2744; color: #c8d6e5; }
body[data-theme="scifi"] .ai-input-row input:focus { border-color: #00e5ff; }
body[data-theme="scifi"] .ai-send-btn { background: #00e5ff; color: #0a0e17; }
body[data-theme="scifi"] .ai-send-btn:hover { background: #33eaff; }
body[data-theme="scifi"] .ai-response { background: rgba(0,229,255,0.05); border-color: #1a2744; color: #c8d6e5; }
body[data-theme="scifi"] .settings-label { color: #c8d6e5; }
body[data-theme="scifi"] .settings-hint { color: #5a6f8a; }
body[data-theme="scifi"] .settings-saved { color: #00e5ff; }

/* ===== THEME: PIXEL ART ===== */
body[data-theme="pixel"] { font-family: "Outfit", sans-serif; color: #e8e8e8; background: #1a1c2c; }
body[data-theme="pixel"] .icon-btn { background: #262b44; border-color: #3e4366; color: #8a8ea8; border-radius: 0; }
body[data-theme="pixel"] .icon-btn:hover { color: #f7d54a; background: #3e4366; }
body[data-theme="pixel"] .theme-menu { background: #262b44; border-color: #3e4366; border-radius: 0; box-shadow: 4px 4px 0 #0f1020; }
body[data-theme="pixel"] .theme-group-label { color: #52587a; }
body[data-theme="pixel"] .theme-option { font-family: "Press Start 2P", monospace; font-size: 0.55rem; color: #8a8ea8; border-radius: 0; }
body[data-theme="pixel"] .theme-option:hover { color: #fff; background: #3e4366; }
body[data-theme="pixel"] .theme-option.active { background: #f7d54a; color: #1a1c2c; }
body[data-theme="pixel"] .tab { font-family: "Press Start 2P", monospace; font-size: 0.5rem; color: #8a8ea8; border-color: #3e4366; border-radius: 0; }
body[data-theme="pixel"] .tab:hover { color: #fff; background: #3e4366; }
body[data-theme="pixel"] .tab.active { background: #f7d54a; color: #1a1c2c; border-color: #f7d54a; }
body[data-theme="pixel"] .add-tab-btn { border-color: #3e4366; color: #8a8ea8; border-radius: 0; font-size: 0.9rem; }
body[data-theme="pixel"] .add-tab-btn:hover { color: #f7d54a; background: #3e4366; }
body[data-theme="pixel"] .logo { font-family: "Press Start 2P", monospace; font-size: 1.6rem; color: #f7d54a; text-shadow: 3px 3px 0 #b8456e; line-height: 1.4; }
body[data-theme="pixel"] .subtitle { color: #8a8ea8; font-family: "Press Start 2P", monospace; font-size: 0.6rem; line-height: 1.6; }
body[data-theme="pixel"] .drop-zone-inner { border: 3px dashed #3e4366; border-radius: 0; background: #262b44; box-shadow: 4px 4px 0 #0f1020; }
body[data-theme="pixel"] .drop-zone.drag-over .drop-zone-inner { border-color: #f7d54a; background: #2e3452; box-shadow: 4px 4px 0 #f7d54a; }
body[data-theme="pixel"] .upload-icon { color: #52587a; }
body[data-theme="pixel"] .drop-text { color: #e8e8e8; font-family: "Press Start 2P", monospace; font-size: 0.7rem; line-height: 1.5; }
body[data-theme="pixel"] .drop-or { color: #52587a; font-family: "Press Start 2P", monospace; font-size: 0.5rem; }
body[data-theme="pixel"] .btn-pick { font-family: "Press Start 2P", monospace; font-size: 0.65rem; background: #b8456e; color: #fff; border-radius: 0; box-shadow: 3px 3px 0 #0f1020; }
body[data-theme="pixel"] .btn-pick:hover { background: #d45a88; box-shadow: 3px 3px 0 #f7d54a; }
body[data-theme="pixel"] .markdown-body { background: #262b44; border: 3px solid #3e4366; border-radius: 0; color: #e8e8e8; box-shadow: 4px 4px 0 #0f1020; }
body[data-theme="pixel"] .markdown-body h1,body[data-theme="pixel"] .markdown-body h2,body[data-theme="pixel"] .markdown-body h3,body[data-theme="pixel"] .markdown-body h4,body[data-theme="pixel"] .markdown-body h5,body[data-theme="pixel"] .markdown-body h6 { font-family: "Press Start 2P", monospace; color: #f7d54a; line-height: 1.6; }
body[data-theme="pixel"] .markdown-body h1 { font-size: 1.1rem; border-bottom: 3px solid #3e4366; text-shadow: 2px 2px 0 #b8456e; }
body[data-theme="pixel"] .markdown-body h2 { font-size: 0.9rem; border-bottom: 3px solid #3e4366; color: #5eead4; }
body[data-theme="pixel"] .markdown-body h3 { font-size: 0.75rem; }
body[data-theme="pixel"] .markdown-body h4,body[data-theme="pixel"] .markdown-body h5,body[data-theme="pixel"] .markdown-body h6 { font-size: 0.65rem; }
body[data-theme="pixel"] .markdown-body h6 { color: #8a8ea8; }
body[data-theme="pixel"] .markdown-body p { font-size: 0.9rem; }
body[data-theme="pixel"] .markdown-body a { color: #5eead4; }
body[data-theme="pixel"] .markdown-body blockquote { border-left: 4px solid #b8456e; color: #8a8ea8; background: rgba(184,69,110,0.08); }
body[data-theme="pixel"] .markdown-body code { background: #1a1c2c; color: #5eead4; border-radius: 0; border: 1px solid #3e4366; font-size: 80%; }
body[data-theme="pixel"] .markdown-body pre { background: #1a1c2c; border: 2px solid #3e4366; border-radius: 0; }
body[data-theme="pixel"] .markdown-body pre code { color: #e8e8e8; border: none; }
body[data-theme="pixel"] .markdown-body th,body[data-theme="pixel"] .markdown-body td { border: 2px solid #3e4366; border-radius: 0; }
body[data-theme="pixel"] .markdown-body th { background: #1a1c2c; color: #f7d54a; }
body[data-theme="pixel"] .markdown-body tr:nth-child(2n) { background: rgba(94,234,212,0.05); }
body[data-theme="pixel"] .markdown-body hr { background: #3e4366; height: 3px; }
body[data-theme="pixel"] .markdown-body strong { color: #f7d54a; }
body[data-theme="pixel"] .markdown-body li::marker { color: #b8456e; }
body[data-theme="pixel"] .ai-float-btn { background: #b8456e; color: #fff; border-radius: 0; box-shadow: 3px 3px 0 #0f1020; }
body[data-theme="pixel"] .ai-float-btn:hover { background: #d45a88; }
body[data-theme="pixel"] .modal { background: #262b44; border-radius: 0; border: 3px solid #3e4366; box-shadow: 4px 4px 0 #0f1020; }
body[data-theme="pixel"] .modal-header { border-bottom: 2px solid #3e4366; }
body[data-theme="pixel"] .modal-header h3 { font-family: "Press Start 2P", monospace; font-size: 0.7rem; color: #f7d54a; }
body[data-theme="pixel"] .modal-close { color: #8a8ea8; border-radius: 0; }
body[data-theme="pixel"] .modal-close:hover { background: #3e4366; color: #f7d54a; }
body[data-theme="pixel"] .ai-selection-preview { background: #1a1c2c; border-left-color: #b8456e; color: #e8e8e8; border-radius: 0; }
body[data-theme="pixel"] .ai-input-row input { background: #1a1c2c; border-color: #3e4366; color: #e8e8e8; border-radius: 0; }
body[data-theme="pixel"] .ai-input-row input:focus { border-color: #f7d54a; }
body[data-theme="pixel"] .ai-send-btn { background: #b8456e; border-radius: 0; }
body[data-theme="pixel"] .ai-send-btn:hover { background: #d45a88; }
body[data-theme="pixel"] .ai-response { background: rgba(94,234,212,0.06); border-color: #3e4366; color: #e8e8e8; border-radius: 0; }
body[data-theme="pixel"] .settings-label { color: #e8e8e8; }
body[data-theme="pixel"] .settings-hint { color: #8a8ea8; }
body[data-theme="pixel"] .settings-saved { color: #5eead4; }

/* ===== THEME: OFFICE ===== */
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter:wght@400;500;600;700&display=swap');
body[data-theme="office"] { font-family: "Lora", Georgia, "Times New Roman", serif; color: #2c2416; background: #f5f0e8; }
body[data-theme="office"] .icon-btn { background: #faf6ef; border-color: #c9b99a; color: #7a6b55; }
body[data-theme="office"] .icon-btn:hover { background: #efe8db; color: #2c2416; border-color: #a08b6e; }
body[data-theme="office"] .theme-menu { background: #faf6ef; border-color: #c9b99a; box-shadow: 0 4px 16px rgba(44,36,22,0.1); }
body[data-theme="office"] .theme-group-label { color: #b3a284; }
body[data-theme="office"] .theme-option { color: #7a6b55; font-family: "Inter", sans-serif; }
body[data-theme="office"] .theme-option:hover { background: #efe8db; color: #2c2416; }
body[data-theme="office"] .theme-option.active { background: #6b4c2a; color: #faf6ef; }
body[data-theme="office"] .tab { color: #7a6b55; border-color: #c9b99a; font-family: "Inter", sans-serif; }
body[data-theme="office"] .tab:hover { background: #efe8db; color: #2c2416; }
body[data-theme="office"] .tab.active { background: #6b4c2a; color: #faf6ef; border-color: #6b4c2a; }
body[data-theme="office"] .add-tab-btn { border-color: #c9b99a; color: #7a6b55; }
body[data-theme="office"] .add-tab-btn:hover { background: #efe8db; color: #2c2416; border-color: #a08b6e; }
body[data-theme="office"] .logo { font-family: "Lora", Georgia, serif; color: #2c2416; letter-spacing: -0.02em; text-shadow: none; }
body[data-theme="office"] .subtitle { color: #7a6b55; }
body[data-theme="office"] .drop-zone-inner { border-color: #c9b99a; background: #faf6ef; border-style: solid; border-width: 1px; box-shadow: 0 1px 4px rgba(44,36,22,0.06); }
body[data-theme="office"] .drop-zone.drag-over .drop-zone-inner { border-color: #6b4c2a; background: #f0e8d8; box-shadow: 0 2px 12px rgba(107,76,42,0.12); }
body[data-theme="office"] .upload-icon { color: #c9b99a; }
body[data-theme="office"] .drop-text { color: #2c2416; }
body[data-theme="office"] .drop-or { color: #c9b99a; }
body[data-theme="office"] .btn-pick { background: #6b4c2a; color: #faf6ef; font-family: "Inter", sans-serif; font-weight: 600; box-shadow: 0 1px 3px rgba(44,36,22,0.15); }
body[data-theme="office"] .btn-pick:hover { background: #553c20; box-shadow: 0 2px 8px rgba(44,36,22,0.2); }
body[data-theme="office"] .markdown-body { background: #fffdf8; border: 1px solid #d4c9b5; color: #2c2416; box-shadow: 0 1px 4px rgba(44,36,22,0.06), 0 0 0 1px rgba(44,36,22,0.02); padding: 2.5rem 3rem; font-family: "Lora", Georgia, serif; }
body[data-theme="office"] .markdown-body h1,body[data-theme="office"] .markdown-body h2,body[data-theme="office"] .markdown-body h3,body[data-theme="office"] .markdown-body h4,body[data-theme="office"] .markdown-body h5,body[data-theme="office"] .markdown-body h6 { font-family: "Inter", "Lora", sans-serif; color: #2c2416; }
body[data-theme="office"] .markdown-body h1 { border-bottom: 2px solid #d4c9b5; font-size: 1.9rem; }
body[data-theme="office"] .markdown-body h2 { border-bottom: 1px solid #d4c9b5; font-size: 1.45rem; }
body[data-theme="office"] .markdown-body h3 { font-size: 1.2rem; color: #4a3a25; }
body[data-theme="office"] .markdown-body h6 { color: #9a8b75; }
body[data-theme="office"] .markdown-body a { color: #6b4c2a; }
body[data-theme="office"] .markdown-body a:hover { color: #8b6340; }
body[data-theme="office"] .markdown-body blockquote { border-left: 3px solid #c9b99a; color: #7a6b55; background: rgba(201,185,154,0.08); padding: 0.5rem 1rem; }
body[data-theme="office"] .markdown-body code { background: rgba(201,185,154,0.25); color: #4a3a25; border: 1px solid #e0d6c6; font-size: 85%; }
body[data-theme="office"] .markdown-body pre { background: #f5f0e8; border: 1px solid #d4c9b5; box-shadow: inset 0 1px 3px rgba(44,36,22,0.04); }
body[data-theme="office"] .markdown-body pre code { color: #2c2416; border: none; background: transparent; }
body[data-theme="office"] .markdown-body th,body[data-theme="office"] .markdown-body td { border: 1px solid #d4c9b5; }
body[data-theme="office"] .markdown-body th { background: #f0e8d8; color: #2c2416; font-family: "Inter", sans-serif; }
body[data-theme="office"] .markdown-body tr:nth-child(2n) { background: #faf6ef; }
body[data-theme="office"] .markdown-body hr { background: #d4c9b5; height: 1px; }
body[data-theme="office"] .markdown-body strong { color: #1a1008; }
body[data-theme="office"] .markdown-body li::marker { color: #6b4c2a; }
body[data-theme="office"] .ai-float-btn { background: #6b4c2a; color: #faf6ef; box-shadow: 0 2px 8px rgba(44,36,22,0.2); }
body[data-theme="office"] .ai-float-btn:hover { background: #553c20; }
body[data-theme="office"] .modal { background: #fffdf8; border: 1px solid #d4c9b5; box-shadow: 0 8px 30px rgba(44,36,22,0.15); }
body[data-theme="office"] .modal-header { border-bottom-color: #d4c9b5; }
body[data-theme="office"] .modal-header h3 { color: #2c2416; font-family: "Inter", sans-serif; }
body[data-theme="office"] .modal-close { color: #7a6b55; }
body[data-theme="office"] .modal-close:hover { background: #efe8db; color: #2c2416; }
body[data-theme="office"] .ai-selection-preview { background: #f5f0e8; border-left-color: #6b4c2a; color: #2c2416; font-family: "Lora", Georgia, serif; }
body[data-theme="office"] .ai-input-row input { background: #fffdf8; border-color: #d4c9b5; color: #2c2416; font-family: "Inter", sans-serif; }
body[data-theme="office"] .ai-input-row input:focus { border-color: #6b4c2a; }
body[data-theme="office"] .ai-send-btn { background: #6b4c2a; }
body[data-theme="office"] .ai-send-btn:hover { background: #553c20; }
body[data-theme="office"] .ai-response { background: #f5f0e8; border-color: #d4c9b5; color: #2c2416; }
body[data-theme="office"] .settings-label { color: #2c2416; }
body[data-theme="office"] .settings-hint { color: #7a6b55; }
body[data-theme="office"] .settings-saved { color: #6b4c2a; }

/* ===== THEME: SEPIA (Paper) ===== */
body[data-theme="sepia"] { font-family: "Lora", Georgia, serif; color: #5b4636; background: #f4ecd8; }
body[data-theme="sepia"] a { color: #9c5c28; }
body[data-theme="sepia"] .icon-btn { background: #faf3e3; border-color: #d8c9a8; color: #8a7358; }
body[data-theme="sepia"] .icon-btn:hover { background: #efe4c9; color: #5b4636; border-color: #b99f77; }
body[data-theme="sepia"] .theme-menu { background: #faf3e3; border-color: #d8c9a8; box-shadow: 0 4px 16px rgba(91,70,54,0.12); }
body[data-theme="sepia"] .theme-group-label { color: #b99f77; }
body[data-theme="sepia"] .theme-option { color: #8a7358; }
body[data-theme="sepia"] .theme-option:hover { background: #efe4c9; color: #5b4636; }
body[data-theme="sepia"] .theme-option.active { background: #9c5c28; color: #faf3e3; }
body[data-theme="sepia"] .tab { color: #8a7358; border-color: #d8c9a8; }
body[data-theme="sepia"] .tab:hover { background: #efe4c9; color: #5b4636; }
body[data-theme="sepia"] .tab.active { background: #9c5c28; color: #faf3e3; border-color: #9c5c28; }
body[data-theme="sepia"] .add-tab-btn { border-color: #d8c9a8; color: #8a7358; }
body[data-theme="sepia"] .add-tab-btn:hover { background: #efe4c9; color: #5b4636; border-color: #b99f77; }
body[data-theme="sepia"] .logo { color: #4a3423; }
body[data-theme="sepia"] .subtitle { color: #8a7358; }
body[data-theme="sepia"] .drop-zone-inner { border-color: #d8c9a8; background: #faf3e3; }
body[data-theme="sepia"] .drop-zone.drag-over .drop-zone-inner { border-color: #9c5c28; background: #f0e4c8; }
body[data-theme="sepia"] .upload-icon { color: #c3b090; }
body[data-theme="sepia"] .drop-text { color: #5b4636; }
body[data-theme="sepia"] .drop-or { color: #c3b090; }
body[data-theme="sepia"] .btn-pick { background: #9c5c28; }
body[data-theme="sepia"] .btn-pick:hover { background: #854d1f; }
body[data-theme="sepia"] .markdown-body { background: #fbf5e6; border-color: #e3d5b8; color: #5b4636; }
body[data-theme="sepia"] .markdown-body h1,body[data-theme="sepia"] .markdown-body h2,body[data-theme="sepia"] .markdown-body h3,body[data-theme="sepia"] .markdown-body h4,body[data-theme="sepia"] .markdown-body h5,body[data-theme="sepia"] .markdown-body h6 { color: #43301f; }
body[data-theme="sepia"] .markdown-body h1,body[data-theme="sepia"] .markdown-body h2 { border-bottom-color: #e3d5b8; }
body[data-theme="sepia"] .markdown-body h6 { color: #a08a6d; }
body[data-theme="sepia"] .markdown-body a { color: #9c5c28; }
body[data-theme="sepia"] .markdown-body blockquote { border-left-color: #c9a176; color: #7d674f; background: rgba(156,92,40,0.05); }
body[data-theme="sepia"] .markdown-body code { background: rgba(156,92,40,0.1); color: #7a4318; }
body[data-theme="sepia"] .markdown-body pre { background: #f2e9d3; border: 1px solid #e3d5b8; }
body[data-theme="sepia"] .markdown-body pre code { color: #5b4636; background: transparent; }
body[data-theme="sepia"] .markdown-body th,body[data-theme="sepia"] .markdown-body td { border-color: #e3d5b8; }
body[data-theme="sepia"] .markdown-body th { background: #f2e9d3; }
body[data-theme="sepia"] .markdown-body tr:nth-child(2n) { background: #f7efdd; }
body[data-theme="sepia"] .markdown-body hr { background: #e3d5b8; }
body[data-theme="sepia"] .ai-float-btn { background: #9c5c28; }
body[data-theme="sepia"] .ai-float-btn:hover { background: #854d1f; }
body[data-theme="sepia"] .modal { background: #fbf5e6; }
body[data-theme="sepia"] .modal-header { border-bottom-color: #e3d5b8; }
body[data-theme="sepia"] .modal-header h3 { color: #43301f; }
body[data-theme="sepia"] .modal-close { color: #8a7358; }
body[data-theme="sepia"] .modal-close:hover { background: #efe4c9; color: #43301f; }
body[data-theme="sepia"] .ai-selection-preview { background: #f2e9d3; border-left-color: #9c5c28; color: #5b4636; }
body[data-theme="sepia"] .ai-input-row input { background: #faf3e3; border-color: #d8c9a8; color: #5b4636; }
body[data-theme="sepia"] .ai-input-row input:focus { border-color: #9c5c28; }
body[data-theme="sepia"] .ai-send-btn { background: #9c5c28; }
body[data-theme="sepia"] .ai-send-btn:hover { background: #854d1f; }
body[data-theme="sepia"] .ai-response { background: #f2e9d3; border-color: #e3d5b8; color: #5b4636; }
body[data-theme="sepia"] .settings-label { color: #43301f; }
body[data-theme="sepia"] .settings-hint { color: #8a7358; }
body[data-theme="sepia"] .settings-hint a { color: #9c5c28; }
body[data-theme="sepia"] .settings-saved { color: #9c5c28; }

/* ===== THEME: NOTION (Paper) ===== */
body[data-theme="notion"] { font-family: "Inter", -apple-system, "Segoe UI", sans-serif; color: #37352f; background: #ffffff; }
body[data-theme="notion"] a { color: #3183f8; }
body[data-theme="notion"] .app-wrapper { max-width: 800px; }
body[data-theme="notion"] .icon-btn { background: transparent; border-color: transparent; color: #9b9a97; }
body[data-theme="notion"] .icon-btn:hover { background: #f1f1ef; color: #37352f; }
body[data-theme="notion"] .theme-menu { border-color: #e0e0de; box-shadow: 0 4px 20px rgba(0,0,0,0.12); }
body[data-theme="notion"] .theme-group-label { color: #9b9a97; }
body[data-theme="notion"] .theme-option { color: #6b6b68; }
body[data-theme="notion"] .theme-option:hover { background: #f1f1ef; color: #37352f; }
body[data-theme="notion"] .theme-option.active { background: #3183f8; color: #fff; }
body[data-theme="notion"] .tab { color: #9b9a97; border-color: transparent; background: #f7f7f5; }
body[data-theme="notion"] .tab:hover { color: #37352f; background: #ebebea; }
body[data-theme="notion"] .tab.active { background: #37352f; color: #fff; border-color: #37352f; }
body[data-theme="notion"] .add-tab-btn { border-color: #e0e0de; color: #9b9a97; }
body[data-theme="notion"] .add-tab-btn:hover { background: #f1f1ef; color: #37352f; }
body[data-theme="notion"] .logo { color: #37352f; font-weight: 700; }
body[data-theme="notion"] .subtitle { color: #9b9a97; }
body[data-theme="notion"] .drop-zone-inner { border-color: #d3d3d0; background: #fafafa; border-style: solid; }
body[data-theme="notion"] .drop-zone.drag-over .drop-zone-inner { border-color: #3183f8; background: #f0f7ff; }
body[data-theme="notion"] .upload-icon { color: #c4c4c1; }
body[data-theme="notion"] .drop-text { color: #6b6b68; }
body[data-theme="notion"] .drop-or { color: #c4c4c1; }
body[data-theme="notion"] .btn-pick { background: #37352f; }
body[data-theme="notion"] .btn-pick:hover { background: #191919; }
body[data-theme="notion"] .markdown-body { background: transparent; border-color: transparent; padding: 0.5rem 0.25rem 2rem; color: #37352f; }
body[data-theme="notion"] .markdown-body h1,body[data-theme="notion"] .markdown-body h2,body[data-theme="notion"] .markdown-body h3,body[data-theme="notion"] .markdown-body h4,body[data-theme="notion"] .markdown-body h5,body[data-theme="notion"] .markdown-body h6 { color: #37352f; }
body[data-theme="notion"] .markdown-body h1 { border-bottom: none; margin-top: 2rem; }
body[data-theme="notion"] .markdown-body h2 { border-bottom: none; }
body[data-theme="notion"] .markdown-body h6 { color: #9b9a97; }
body[data-theme="notion"] .markdown-body a { color: #3183f8; text-decoration: underline; }
body[data-theme="notion"] .markdown-body blockquote { border-left: 3px solid #37352f; color: #6b6b68; background: transparent; }
body[data-theme="notion"] .markdown-body code { background: #f1efec; color: #d95503; }
body[data-theme="notion"] .markdown-body pre { background: #f7f6f3; border: 1px solid #ebebeb; }
body[data-theme="notion"] .markdown-body pre code { color: #37352f; }
body[data-theme="notion"] .markdown-body th,body[data-theme="notion"] .markdown-body td { border-color: #e3e2de; }
body[data-theme="notion"] .markdown-body th { background: #f7f6f3; }
body[data-theme="notion"] .markdown-body tr:nth-child(2n) { background: #fbfbfa; }
body[data-theme="notion"] .markdown-body hr { background: #e3e2de; height: 1px; }
body[data-theme="notion"] .ai-float-btn { background: #37352f; }
body[data-theme="notion"] .ai-float-btn:hover { background: #191919; }
body[data-theme="notion"] .modal { border: 1px solid #e6e6e4; box-shadow: 0 8px 30px rgba(0,0,0,0.12); }
body[data-theme="notion"] .modal-header { border-bottom-color: #e6e6e4; }
body[data-theme="notion"] .modal-close:hover { background: #f1f1ef; }
body[data-theme="notion"] .ai-selection-preview { background: #f7f6f3; border-left-color: #3183f8; color: #37352f; }
body[data-theme="notion"] .ai-input-row input { border-color: #e0e0de; }
body[data-theme="notion"] .ai-input-row input:focus { border-color: #3183f8; }
body[data-theme="notion"] .ai-send-btn { background: #37352f; }
body[data-theme="notion"] .ai-send-btn:hover { background: #191919; }
body[data-theme="notion"] .ai-response { background: #f7f6f3; border-color: #ebebea; color: #37352f; }
body[data-theme="notion"] .settings-hint a { color: #3183f8; }
body[data-theme="notion"] .settings-saved { color: #0f7b6c; }

/* ===== THEME: MIDNIGHT (Dark) ===== */
body[data-theme="midnight"] { font-family: "Inter", -apple-system, "Segoe UI", sans-serif; color: #c6d0f0; background: #0b1021; }
body[data-theme="midnight"] a { color: #82aaff; }
body[data-theme="midnight"] .icon-btn { background: #151b33; border-color: #232b4d; color: #8b9dcf; }
body[data-theme="midnight"] .icon-btn:hover { background: #1b2340; color: #c6d0f0; border-color: #384680; }
body[data-theme="midnight"] .theme-menu { background: #151b33; border-color: #232b4d; box-shadow: 0 4px 16px rgba(0,0,0,0.4); }
body[data-theme="midnight"] .theme-group-label { color: #4a587f; }
body[data-theme="midnight"] .theme-option { color: #8b9dcf; }
body[data-theme="midnight"] .theme-option:hover { background: #1b2340; color: #c6d0f0; }
body[data-theme="midnight"] .theme-option.active { background: #7aa2f7; color: #0b1021; }
body[data-theme="midnight"] .tab { color: #8b9dcf; border-color: #232b4d; }
body[data-theme="midnight"] .tab:hover { background: #1b2340; color: #c6d0f0; }
body[data-theme="midnight"] .tab.active { background: #7aa2f7; color: #0b1021; border-color: #7aa2f7; }
body[data-theme="midnight"] .add-tab-btn { border-color: #232b4d; color: #8b9dcf; }
body[data-theme="midnight"] .add-tab-btn:hover { background: #1b2340; color: #c6d0f0; border-color: #384680; }
body[data-theme="midnight"] .logo { color: #c6d0f0; }
body[data-theme="midnight"] .subtitle { color: #6877a8; }
body[data-theme="midnight"] .drop-zone-inner { border-color: #232b4d; background: #151b33; }
body[data-theme="midnight"] .drop-zone.drag-over .drop-zone-inner { border-color: #7aa2f7; background: #1b2340; }
body[data-theme="midnight"] .upload-icon { color: #384680; }
body[data-theme="midnight"] .drop-text { color: #c6d0f0; }
body[data-theme="midnight"] .drop-or { color: #384680; }
body[data-theme="midnight"] .btn-pick { background: #7aa2f7; color: #0b1021; }
body[data-theme="midnight"] .btn-pick:hover { background: #8fb0ff; }
body[data-theme="midnight"] .markdown-body { background: #131829; border-color: #232b4d; color: #c6d0f0; }
body[data-theme="midnight"] .markdown-body h1,body[data-theme="midnight"] .markdown-body h2,body[data-theme="midnight"] .markdown-body h3,body[data-theme="midnight"] .markdown-body h4,body[data-theme="midnight"] .markdown-body h5,body[data-theme="midnight"] .markdown-body h6 { color: #e6ecff; }
body[data-theme="midnight"] .markdown-body h1,body[data-theme="midnight"] .markdown-body h2 { border-bottom-color: #232b4d; }
body[data-theme="midnight"] .markdown-body h6 { color: #6877a8; }
body[data-theme="midnight"] .markdown-body a { color: #82aaff; }
body[data-theme="midnight"] .markdown-body blockquote { border-left-color: #7aa2f7; color: #8b9dcf; background: rgba(122,162,247,0.06); }
body[data-theme="midnight"] .markdown-body code { background: rgba(122,162,247,0.14); color: #a8c3ff; }
body[data-theme="midnight"] .markdown-body pre { background: #0d1226; border: 1px solid #232b4d; }
body[data-theme="midnight"] .markdown-body pre code { color: #c6d0f0; background: transparent; }
body[data-theme="midnight"] .markdown-body th,body[data-theme="midnight"] .markdown-body td { border-color: #232b4d; }
body[data-theme="midnight"] .markdown-body th { background: #1b2340; color: #e6ecff; }
body[data-theme="midnight"] .markdown-body tr:nth-child(2n) { background: rgba(122,162,247,0.05); }
body[data-theme="midnight"] .markdown-body hr { background: #232b4d; }
body[data-theme="midnight"] .markdown-body strong { color: #ffffff; }
body[data-theme="midnight"] .ai-float-btn { background: #7aa2f7; color: #0b1021; }
body[data-theme="midnight"] .ai-float-btn:hover { background: #8fb0ff; }
body[data-theme="midnight"] .modal { background: #151b33; border: 1px solid #232b4d; }
body[data-theme="midnight"] .modal-header { border-bottom-color: #232b4d; }
body[data-theme="midnight"] .modal-header h3 { color: #e6ecff; }
body[data-theme="midnight"] .modal-close { color: #8b9dcf; }
body[data-theme="midnight"] .modal-close:hover { background: #1b2340; color: #e6ecff; }
body[data-theme="midnight"] .ai-selection-preview { background: #0d1226; border-left-color: #7aa2f7; color: #c6d0f0; }
body[data-theme="midnight"] .ai-input-row input { background: #0d1226; border-color: #232b4d; color: #c6d0f0; }
body[data-theme="midnight"] .ai-input-row input:focus { border-color: #7aa2f7; }
body[data-theme="midnight"] .ai-send-btn { background: #7aa2f7; color: #0b1021; }
body[data-theme="midnight"] .ai-send-btn:hover { background: #8fb0ff; }
body[data-theme="midnight"] .ai-response { background: rgba(122,162,247,0.08); border-color: #232b4d; color: #c6d0f0; }
body[data-theme="midnight"] .settings-label { color: #e6ecff; }
body[data-theme="midnight"] .settings-hint { color: #8b9dcf; }
body[data-theme="midnight"] .settings-hint a { color: #82aaff; }
body[data-theme="midnight"] .settings-saved { color: #9ece6a; }

/* ===== THEME: NORD (Dark) ===== */
body[data-theme="nord"] { font-family: "Inter", -apple-system, "Segoe UI", sans-serif; color: #d8dee9; background: #2e3440; }
body[data-theme="nord"] a { color: #88c0d0; }
body[data-theme="nord"] .icon-btn { background: #3b4252; border-color: #4c566a; color: #aeb6c4; }
body[data-theme="nord"] .icon-btn:hover { background: #434c5e; color: #eceff4; border-color: #6272a4; }
body[data-theme="nord"] .theme-menu { background: #3b4252; border-color: #4c566a; box-shadow: 0 4px 16px rgba(0,0,0,0.35); }
body[data-theme="nord"] .theme-group-label { color: #616e88; }
body[data-theme="nord"] .theme-option { color: #aeb6c4; }
body[data-theme="nord"] .theme-option:hover { background: #434c5e; color: #eceff4; }
body[data-theme="nord"] .theme-option.active { background: #88c0d0; color: #2e3440; }
body[data-theme="nord"] .tab { color: #aeb6c4; border-color: #4c566a; }
body[data-theme="nord"] .tab:hover { background: #434c5e; color: #eceff4; }
body[data-theme="nord"] .tab.active { background: #5e81ac; color: #eceff4; border-color: #5e81ac; }
body[data-theme="nord"] .add-tab-btn { border-color: #4c566a; color: #aeb6c4; }
body[data-theme="nord"] .add-tab-btn:hover { background: #434c5e; color: #eceff4; }
body[data-theme="nord"] .logo { color: #eceff4; }
body[data-theme="nord"] .subtitle { color: #8f9bb0; }
body[data-theme="nord"] .drop-zone-inner { border-color: #4c566a; background: #3b4252; }
body[data-theme="nord"] .drop-zone.drag-over .drop-zone-inner { border-color: #88c0d0; background: #434c5e; }
body[data-theme="nord"] .upload-icon { color: #4c566a; }
body[data-theme="nord"] .drop-text { color: #d8dee9; }
body[data-theme="nord"] .drop-or { color: #4c566a; }
body[data-theme="nord"] .btn-pick { background: #5e81ac; color: #eceff4; }
body[data-theme="nord"] .btn-pick:hover { background: #6b90bc; }
body[data-theme="nord"] .markdown-body { background: #3b4252; border-color: #4c566a; color: #d8dee9; }
body[data-theme="nord"] .markdown-body h1,body[data-theme="nord"] .markdown-body h2,body[data-theme="nord"] .markdown-body h3,body[data-theme="nord"] .markdown-body h4,body[data-theme="nord"] .markdown-body h5,body[data-theme="nord"] .markdown-body h6 { color: #eceff4; }
body[data-theme="nord"] .markdown-body h1,body[data-theme="nord"] .markdown-body h2 { border-bottom-color: #4c566a; }
body[data-theme="nord"] .markdown-body h6 { color: #8f9bb0; }
body[data-theme="nord"] .markdown-body a { color: #88c0d0; }
body[data-theme="nord"] .markdown-body blockquote { border-left-color: #81a1c1; color: #aeb6c4; background: rgba(136,192,208,0.06); }
body[data-theme="nord"] .markdown-body code { background: rgba(136,192,208,0.14); color: #8fbcbb; }
body[data-theme="nord"] .markdown-body pre { background: #2e3440; border: 1px solid #4c566a; }
body[data-theme="nord"] .markdown-body pre code { color: #d8dee9; background: transparent; }
body[data-theme="nord"] .markdown-body th,body[data-theme="nord"] .markdown-body td { border-color: #4c566a; }
body[data-theme="nord"] .markdown-body th { background: #434c5e; color: #eceff4; }
body[data-theme="nord"] .markdown-body tr:nth-child(2n) { background: rgba(216,222,233,0.04); }
body[data-theme="nord"] .markdown-body hr { background: #4c566a; }
body[data-theme="nord"] .markdown-body strong { color: #eceff4; }
body[data-theme="nord"] .ai-float-btn { background: #5e81ac; color: #eceff4; }
body[data-theme="nord"] .ai-float-btn:hover { background: #6b90bc; }
body[data-theme="nord"] .modal { background: #3b4252; border: 1px solid #4c566a; }
body[data-theme="nord"] .modal-header { border-bottom-color: #4c566a; }
body[data-theme="nord"] .modal-header h3 { color: #eceff4; }
body[data-theme="nord"] .modal-close { color: #aeb6c4; }
body[data-theme="nord"] .modal-close:hover { background: #434c5e; color: #eceff4; }
body[data-theme="nord"] .ai-selection-preview { background: #2e3440; border-left-color: #88c0d0; color: #d8dee9; }
body[data-theme="nord"] .ai-input-row input { background: #2e3440; border-color: #4c566a; color: #d8dee9; }
body[data-theme="nord"] .ai-input-row input:focus { border-color: #88c0d0; }
body[data-theme="nord"] .ai-send-btn { background: #5e81ac; color: #eceff4; }
body[data-theme="nord"] .ai-send-btn:hover { background: #6b90bc; }
body[data-theme="nord"] .ai-response { background: rgba(136,192,208,0.07); border-color: #4c566a; color: #d8dee9; }
body[data-theme="nord"] .settings-label { color: #eceff4; }
body[data-theme="nord"] .settings-hint { color: #aeb6c4; }
body[data-theme="nord"] .settings-hint a { color: #88c0d0; }
body[data-theme="nord"] .settings-saved { color: #a3be8c; }

/* ===== THEME: DRACULA (Dark) ===== */
body[data-theme="dracula"] { font-family: "Inter", -apple-system, "Segoe UI", sans-serif; color: #f8f8f2; background: #282a36; }
body[data-theme="dracula"] a { color: #8be9fd; }
body[data-theme="dracula"] .icon-btn { background: #44475a; border-color: #6272a4; color: #bdbacf; }
body[data-theme="dracula"] .icon-btn:hover { background: #6272a4; color: #f8f8f2; }
body[data-theme="dracula"] .theme-menu { background: #44475a; border-color: #6272a4; box-shadow: 0 4px 16px rgba(0,0,0,0.45); }
body[data-theme="dracula"] .theme-group-label { color: #8d96b8; }
body[data-theme="dracula"] .theme-option { color: #bdbacf; }
body[data-theme="dracula"] .theme-option:hover { background: #6272a4; color: #f8f8f2; }
body[data-theme="dracula"] .theme-option.active { background: #bd93f9; color: #282a36; }
body[data-theme="dracula"] .tab { color: #bdbacf; border-color: #6272a4; }
body[data-theme="dracula"] .tab:hover { background: #6272a4; color: #f8f8f2; }
body[data-theme="dracula"] .tab.active { background: #bd93f9; color: #282a36; border-color: #bd93f9; }
body[data-theme="dracula"] .add-tab-btn { border-color: #6272a4; color: #bdbacf; }
body[data-theme="dracula"] .add-tab-btn:hover { background: #6272a4; color: #f8f8f2; }
body[data-theme="dracula"] .logo { color: #ff79c6; }
body[data-theme="dracula"] .subtitle { color: #9fb8e6; }
body[data-theme="dracula"] .drop-zone-inner { border-color: #6272a4; background: #44475a; }
body[data-theme="dracula"] .drop-zone.drag-over .drop-zone-inner { border-color: #bd93f9; background: #545872; }
body[data-theme="dracula"] .upload-icon { color: #6272a4; }
body[data-theme="dracula"] .drop-text { color: #f8f8f2; }
body[data-theme="dracula"] .drop-or { color: #6272a4; }
body[data-theme="dracula"] .btn-pick { background: #bd93f9; color: #282a36; }
body[data-theme="dracula"] .btn-pick:hover { background: #caa8ff; }
body[data-theme="dracula"] .markdown-body { background: #343746; border-color: #44475a; color: #f8f8f2; }
body[data-theme="dracula"] .markdown-body h1,body[data-theme="dracula"] .markdown-body h2,body[data-theme="dracula"] .markdown-body h3,body[data-theme="dracula"] .markdown-body h4,body[data-theme="dracula"] .markdown-body h5,body[data-theme="dracula"] .markdown-body h6 { color: #f8f8f2; }
body[data-theme="dracula"] .markdown-body h1 { color: #ff79c6; border-bottom-color: #44475a; }
body[data-theme="dracula"] .markdown-body h2 { color: #bd93f9; border-bottom-color: #44475a; }
body[data-theme="dracula"] .markdown-body h3,body[data-theme="dracula"] .markdown-body h4,body[data-theme="dracula"] .markdown-body h5 { color: #50fa7b; }
body[data-theme="dracula"] .markdown-body h6 { color: #8be9fd; }
body[data-theme="dracula"] .markdown-body a { color: #8be9fd; }
body[data-theme="dracula"] .markdown-body blockquote { border-left-color: #ff79c6; color: #c8c6db; background: rgba(255,121,198,0.06); }
body[data-theme="dracula"] .markdown-body code { background: rgba(139,233,253,0.12); color: #8be9fd; }
body[data-theme="dracula"] .markdown-body pre { background: #282a36; border: 1px solid #44475a; }
body[data-theme="dracula"] .markdown-body pre code { color: #f8f8f2; background: transparent; }
body[data-theme="dracula"] .markdown-body th,body[data-theme="dracula"] .markdown-body td { border-color: #44475a; }
body[data-theme="dracula"] .markdown-body th { background: #44475a; color: #ffb86c; }
body[data-theme="dracula"] .markdown-body tr:nth-child(2n) { background: rgba(248,248,242,0.03); }
body[data-theme="dracula"] .markdown-body hr { background: #44475a; }
body[data-theme="dracula"] .markdown-body strong { color: #ffb86c; }
body[data-theme="dracula"] .markdown-body li::marker { color: #ff79c6; }
body[data-theme="dracula"] .ai-float-btn { background: #ff79c6; color: #282a36; }
body[data-theme="dracula"] .ai-float-btn:hover { background: #ff96d4; }
body[data-theme="dracula"] .modal { background: #343746; border: 1px solid #44475a; }
body[data-theme="dracula"] .modal-header { border-bottom-color: #44475a; }
body[data-theme="dracula"] .modal-header h3 { color: #f8f8f2; }
body[data-theme="dracula"] .modal-close { color: #bdbacf; }
body[data-theme="dracula"] .modal-close:hover { background: #6272a4; color: #f8f8f2; }
body[data-theme="dracula"] .ai-selection-preview { background: #282a36; border-left-color: #ff79c6; color: #f8f8f2; }
body[data-theme="dracula"] .ai-input-row input { background: #282a36; border-color: #44475a; color: #f8f8f2; }
body[data-theme="dracula"] .ai-input-row input:focus { border-color: #bd93f9; }
body[data-theme="dracula"] .ai-send-btn { background: #bd93f9; color: #282a36; }
body[data-theme="dracula"] .ai-send-btn:hover { background: #caa8ff; }
body[data-theme="dracula"] .ai-response { background: rgba(80,250,123,0.06); border-color: #44475a; color: #f8f8f2; }
body[data-theme="dracula"] .settings-label { color: #f8f8f2; }
body[data-theme="dracula"] .settings-hint { color: #bdbacf; }
body[data-theme="dracula"] .settings-hint a { color: #8be9fd; }
body[data-theme="dracula"] .settings-saved { color: #50fa7b; }

/* ===== THEME: SYNTHWAVE (Neon) ===== */
body[data-theme="synthwave"] { font-family: "Outfit", sans-serif; color: #f4efff; background: linear-gradient(180deg, #160b29 0%, #241040 100%); background-attachment: fixed; }
body[data-theme="synthwave"] a { color: #ff6ec7; }
body[data-theme="synthwave"] .icon-btn { background: #241546; border-color: #5ad1e6; color: #9d86c9; }
body[data-theme="synthwave"] .icon-btn:hover { background: #2e1b5a; color: #ff6ec7; border-color: #ff6ec7; }
body[data-theme="synthwave"] .theme-menu { background: #241546; border-color: #5ad1e6; box-shadow: 0 4px 20px rgba(255,110,199,0.2); }
body[data-theme="synthwave"] .theme-group-label { color: #5ad1e6; }
body[data-theme="synthwave"] .theme-option { color: #9d86c9; }
body[data-theme="synthwave"] .theme-option:hover { background: #2e1b5a; color: #f4efff; }
body[data-theme="synthwave"] .theme-option.active { background: #ff6ec7; color: #160b29; }
body[data-theme="synthwave"] .tab { color: #9d86c9; border-color: #5ad1e6; }
body[data-theme="synthwave"] .tab:hover { background: #2e1b5a; color: #f4efff; }
body[data-theme="synthwave"] .tab.active { background: linear-gradient(90deg, #ff6ec7, #5ad1e6); color: #160b29; border-color: #ff6ec7; }
body[data-theme="synthwave"] .add-tab-btn { border-color: #5ad1e6; color: #9d86c9; }
body[data-theme="synthwave"] .add-tab-btn:hover { color: #ff6ec7; border-color: #ff6ec7; }
body[data-theme="synthwave"] .logo { color: #ff6ec7; text-shadow: 0 0 18px rgba(255,110,199,0.55), 0 0 40px rgba(90,209,230,0.3); }
body[data-theme="synthwave"] .subtitle { color: #9d86c9; }
body[data-theme="synthwave"] .drop-zone-inner { border-color: #5ad1e6; background: rgba(36,21,70,0.7); }
body[data-theme="synthwave"] .drop-zone.drag-over .drop-zone-inner { border-color: #ff6ec7; background: rgba(46,27,90,0.8); box-shadow: 0 0 28px rgba(255,110,199,0.25); }
body[data-theme="synthwave"] .upload-icon { color: #5ad1e6; }
body[data-theme="synthwave"] .drop-text { color: #f4efff; }
body[data-theme="synthwave"] .drop-or { color: #6b5694; }
body[data-theme="synthwave"] .btn-pick { background: #ff6ec7; color: #160b29; box-shadow: 0 0 14px rgba(255,110,199,0.4); }
body[data-theme="synthwave"] .btn-pick:hover { background: #ff8ad4; }
body[data-theme="synthwave"] .markdown-body { background: #1d1138; border: 1px solid #5ad1e6; color: #f4efff; box-shadow: 0 0 30px rgba(90,209,230,0.08); }
body[data-theme="synthwave"] .markdown-body h1,body[data-theme="synthwave"] .markdown-body h2,body[data-theme="synthwave"] .markdown-body h3,body[data-theme="synthwave"] .markdown-body h4,body[data-theme="synthwave"] .markdown-body h5,body[data-theme="synthwave"] .markdown-body h6 { color: #ff6ec7; text-shadow: 0 0 10px rgba(255,110,199,0.35); }
body[data-theme="synthwave"] .markdown-body h1,body[data-theme="synthwave"] .markdown-body h2 { border-bottom-color: #5ad1e6; }
body[data-theme="synthwave"] .markdown-body h3,body[data-theme="synthwave"] .markdown-body h4 { color: #5ad1e6; text-shadow: 0 0 10px rgba(90,209,230,0.35); }
body[data-theme="synthwave"] .markdown-body h6 { color: #9d86c9; text-shadow: none; }
body[data-theme="synthwave"] .markdown-body a { color: #5ad1e6; }
body[data-theme="synthwave"] .markdown-body blockquote { border-left-color: #ff6ec7; color: #c0aee6; background: rgba(255,110,199,0.06); }
body[data-theme="synthwave"] .markdown-body code { background: rgba(90,209,230,0.14); color: #5ad1e6; }
body[data-theme="synthwave"] .markdown-body pre { background: #140a26; border: 1px solid #3c2a63; }
body[data-theme="synthwave"] .markdown-body pre code { color: #f4efff; background: transparent; }
body[data-theme="synthwave"] .markdown-body th,body[data-theme="synthwave"] .markdown-body td { border-color: #3c2a63; }
body[data-theme="synthwave"] .markdown-body th { background: #241546; color: #ff6ec7; }
body[data-theme="synthwave"] .markdown-body tr:nth-child(2n) { background: rgba(90,209,230,0.05); }
body[data-theme="synthwave"] .markdown-body hr { background: #3c2a63; }
body[data-theme="synthwave"] .markdown-body strong { color: #ffdff4; }
body[data-theme="synthwave"] .ai-float-btn { background: #ff6ec7; color: #160b29; box-shadow: 0 0 12px rgba(255,110,199,0.4); }
body[data-theme="synthwave"] .ai-float-btn:hover { background: #ff8ad4; }
body[data-theme="synthwave"] .modal { background: #1d1138; border: 1px solid #5ad1e6; }
body[data-theme="synthwave"] .modal-header { border-bottom-color: #3c2a63; }
body[data-theme="synthwave"] .modal-header h3 { color: #ff6ec7; }
body[data-theme="synthwave"] .modal-close { color: #9d86c9; }
body[data-theme="synthwave"] .modal-close:hover { background: #2e1b5a; color: #ff6ec7; }
body[data-theme="synthwave"] .ai-selection-preview { background: #140a26; border-left-color: #ff6ec7; color: #f4efff; }
body[data-theme="synthwave"] .ai-input-row input { background: #140a26; border-color: #3c2a63; color: #f4efff; }
body[data-theme="synthwave"] .ai-input-row input:focus { border-color: #ff6ec7; }
body[data-theme="synthwave"] .ai-send-btn { background: #ff6ec7; color: #160b29; }
body[data-theme="synthwave"] .ai-send-btn:hover { background: #ff8ad4; }
body[data-theme="synthwave"] .ai-response { background: rgba(90,209,230,0.07); border-color: #3c2a63; color: #f4efff; }
body[data-theme="synthwave"] .settings-label { color: #f4efff; }
body[data-theme="synthwave"] .settings-hint { color: #9d86c9; }
body[data-theme="synthwave"] .settings-hint a { color: #5ad1e6; }
body[data-theme="synthwave"] .settings-saved { color: #5ad1e6; }

/* ===== THEME: RETRO TERMINAL (Game) ===== */
body[data-theme="terminal"] { font-family: "Courier New", ui-monospace, Consolas, monospace; color: #33ff66; background: #040804; }
body[data-theme="terminal"] a { color: #66ff99; }
body[data-theme="terminal"] .icon-btn { background: #071207; border-color: #1c4a26; color: #33ff66; border-radius: 0; }
body[data-theme="terminal"] .icon-btn:hover { background: #0d1f0d; color: #a0ffb8; border-color: #33ff66; }
body[data-theme="terminal"] .theme-menu { background: #071207; border-color: #1c4a26; border-radius: 0; box-shadow: 0 4px 16px rgba(51,255,102,0.15); }
body[data-theme="terminal"] .theme-group-label { color: #1c7a33; font-weight: 400; letter-spacing: 0.15em; }
body[data-theme="terminal"] .theme-option { font-family: inherit; color: #33ff66; border-radius: 0; }
body[data-theme="terminal"] .theme-option:hover { background: #0d1f0d; color: #a0ffb8; }
body[data-theme="terminal"] .theme-option.active { background: #33ff66; color: #040804; }
body[data-theme="terminal"] .tab { font-family: inherit; color: #2bd958; border-color: #1c4a26; border-radius: 0; }
body[data-theme="terminal"] .tab:hover { background: #0d1f0d; color: #a0ffb8; }
body[data-theme="terminal"] .tab.active { background: #33ff66; color: #040804; border-color: #33ff66; }
body[data-theme="terminal"] .add-tab-btn { border-color: #1c4a26; color: #2bd958; border-radius: 0; }
body[data-theme="terminal"] .add-tab-btn:hover { color: #a0ffb8; border-color: #33ff66; }
body[data-theme="terminal"] .logo { color: #33ff66; text-shadow: 0 0 12px rgba(51,255,102,0.6); font-family: inherit; letter-spacing: 0.05em; }
body[data-theme="terminal"] .logo::after { content: "_"; animation: terminal-blink 1s steps(1) infinite; }
@keyframes terminal-blink { 50% { opacity: 0; } }
body[data-theme="terminal"] .subtitle { color: #1fa34a; }
body[data-theme="terminal"] .drop-zone-inner { border-color: #1c4a26; background: #071207; }
body[data-theme="terminal"] .drop-zone.drag-over .drop-zone-inner { border-color: #33ff66; background: #0d1f0d; box-shadow: 0 0 20px rgba(51,255,102,0.2); }
body[data-theme="terminal"] .upload-icon { color: #1c4a26; }
body[data-theme="terminal"] .drop-text { color: #33ff66; }
body[data-theme="terminal"] .drop-or { color: #1c4a26; }
body[data-theme="terminal"] .btn-pick { background: #33ff66; color: #040804; border-radius: 0; font-family: inherit; }
body[data-theme="terminal"] .btn-pick:hover { background: #a0ffb8; }
body[data-theme="terminal"] .markdown-body { background: #060d06; border: 1px solid #1c4a26; color: #33ff66; box-shadow: 0 0 24px rgba(51,255,102,0.07) inset; }
body[data-theme="terminal"] .markdown-body h1,body[data-theme="terminal"] .markdown-body h2,body[data-theme="terminal"] .markdown-body h3,body[data-theme="terminal"] .markdown-body h4,body[data-theme="terminal"] .markdown-body h5,body[data-theme="terminal"] .markdown-body h6 { color: #7dff9f; font-weight: 700; text-shadow: 0 0 8px rgba(51,255,102,0.45); }
body[data-theme="terminal"] .markdown-body h1 { border-bottom: 1px solid #33ff66; }
body[data-theme="terminal"] .markdown-body h1::before { content: "# "; color: #1fa34a; }
body[data-theme="terminal"] .markdown-body h2::before { content: "## "; color: #1fa34a; }
body[data-theme="terminal"] .markdown-body h3::before { content: "### "; color: #1fa34a; }
body[data-theme="terminal"] .markdown-body h6 { color: #1fa34a; }
body[data-theme="terminal"] .markdown-body a { color: #66ff99; }
body[data-theme="terminal"] .markdown-body blockquote { border-left-color: #33ff66; color: #1fa34a; background: rgba(51,255,102,0.05); }
body[data-theme="terminal"] .markdown-body code { background: rgba(51,255,102,0.12); color: #a0ffb8; border-radius: 0; }
body[data-theme="terminal"] .markdown-body pre { background: #040804; border: 1px solid #1c4a26; border-radius: 0; }
body[data-theme="terminal"] .markdown-body pre code { color: #33ff66; background: transparent; }
body[data-theme="terminal"] .markdown-body th,body[data-theme="terminal"] .markdown-body td { border-color: #1c4a26; }
body[data-theme="terminal"] .markdown-body th { background: #0d1f0d; color: #7dff9f; }
body[data-theme="terminal"] .markdown-body tr:nth-child(2n) { background: rgba(51,255,102,0.04); }
body[data-theme="terminal"] .markdown-body hr { background: #1c4a26; }
body[data-theme="terminal"] .markdown-body strong { color: #d0ffd8; }
body[data-theme="terminal"] .ai-float-btn { background: #071207; color: #33ff66; border: 1px solid #33ff66; border-radius: 0; box-shadow: 0 0 10px rgba(51,255,102,0.3); }
body[data-theme="terminal"] .ai-float-btn:hover { background: #0d1f0d; }
body[data-theme="terminal"] .modal { background: #071207; border: 1px solid #1c4a26; border-radius: 0; }
body[data-theme="terminal"] .modal-header { border-bottom-color: #1c4a26; }
body[data-theme="terminal"] .modal-header h3 { color: #7dff9f; font-family: inherit; }
body[data-theme="terminal"] .modal-close { color: #33ff66; border-radius: 0; }
body[data-theme="terminal"] .modal-close:hover { background: #0d1f0d; }
body[data-theme="terminal"] .ai-selection-preview { background: #040804; border-left-color: #33ff66; color: #33ff66; border-radius: 0; }
body[data-theme="terminal"] .ai-input-row input { background: #040804; border-color: #1c4a26; color: #33ff66; border-radius: 0; font-family: inherit; }
body[data-theme="terminal"] .ai-input-row input:focus { border-color: #33ff66; }
body[data-theme="terminal"] .ai-send-btn { background: #33ff66; color: #040804; border-radius: 0; font-family: inherit; }
body[data-theme="terminal"] .ai-send-btn:hover { background: #a0ffb8; }
body[data-theme="terminal"] .ai-response { background: rgba(51,255,102,0.06); border-color: #1c4a26; color: #33ff66; border-radius: 0; }
body[data-theme="terminal"] .settings-label { color: #7dff9f; }
body[data-theme="terminal"] .settings-hint { color: #1fa34a; }
body[data-theme="terminal"] .settings-hint a { color: #66ff99; }
body[data-theme="terminal"] .settings-saved { color: #a0ffb8; }

/* ===== THEME: GAME BOY (Game) ===== */
body[data-theme="gameboy"] { font-family: "Outfit", sans-serif; color: #1b3a1b; background: #c3cba3; }
body[data-theme="gameboy"] a { color: #2c5b2c; }
body[data-theme="gameboy"] .icon-btn { background: #dfe7c8; border-color: #0f3e1e; color: #0f3e1e; border-radius: 2px; }
body[data-theme="gameboy"] .icon-btn:hover { background: #0f3e1e; color: #9bbc0f; }
body[data-theme="gameboy"] .theme-menu { background: #dfe7c8; border: 2px solid #0f3e1e; border-radius: 2px; box-shadow: 4px 4px 0 rgba(15,62,30,0.5); }
body[data-theme="gameboy"] .theme-group-label { color: #4a6b40; }
body[data-theme="gameboy"] .theme-option { color: #1b3a1b; }
body[data-theme="gameboy"] .theme-option:hover { background: #9bbc0f; }
body[data-theme="gameboy"] .theme-option.active { background: #0f3e1e; color: #9bbc0f; }
body[data-theme="gameboy"] .tab { color: #1b3a1b; border-color: #0f3e1e; border-radius: 2px; background: #dfe7c8; }
body[data-theme="gameboy"] .tab:hover { background: #9bbc0f; }
body[data-theme="gameboy"] .tab.active { background: #0f3e1e; color: #9bbc0f; border-color: #0f3e1e; }
body[data-theme="gameboy"] .add-tab-btn { border-color: #0f3e1e; color: #1b3a1b; border-radius: 2px; }
body[data-theme="gameboy"] .add-tab-btn:hover { background: #0f3e1e; color: #9bbc0f; }
body[data-theme="gameboy"] .logo { color: #0f3e1e; text-shadow: 2px 2px 0 #9bbc0f; }
body[data-theme="gameboy"] .subtitle { color: #4a6b40; }
body[data-theme="gameboy"] .drop-zone-inner { border: 3px solid #0f3e1e; background: #dfe7c8; border-radius: 2px; box-shadow: 4px 4px 0 rgba(15,62,30,0.5); }
body[data-theme="gameboy"] .drop-zone.drag-over .drop-zone-inner { background: #9bbc0f; }
body[data-theme="gameboy"] .upload-icon { color: #4a6b40; }
body[data-theme="gameboy"] .drop-text { color: #0f3e1e; font-weight: 600; }
body[data-theme="gameboy"] .drop-or { color: #4a6b40; }
body[data-theme="gameboy"] .btn-pick { background: #0f3e1e; color: #9bbc0f; border-radius: 2px; box-shadow: 3px 3px 0 rgba(15,62,30,0.5); }
body[data-theme="gameboy"] .btn-pick:hover { background: #306230; }
body[data-theme="gameboy"] .markdown-body { background: #9bbc0f; border: 3px solid #0f3e1e; border-radius: 2px; color: #0f3e1e; box-shadow: 4px 4px 0 rgba(15,62,30,0.5); }
body[data-theme="gameboy"] .markdown-body h1,body[data-theme="gameboy"] .markdown-body h2,body[data-theme="gameboy"] .markdown-body h3,body[data-theme="gameboy"] .markdown-body h4,body[data-theme="gameboy"] .markdown-body h5,body[data-theme="gameboy"] .markdown-body h6 { color: #0f3e1e; }
body[data-theme="gameboy"] .markdown-body h1 { border-bottom: 3px solid #0f3e1e; }
body[data-theme="gameboy"] .markdown-body h2 { border-bottom: 2px solid #306230; }
body[data-theme="gameboy"] .markdown-body h6 { color: #306230; }
body[data-theme="gameboy"] .markdown-body a { color: #0f3e1e; text-decoration: underline; }
body[data-theme="gameboy"] .markdown-body blockquote { border-left: 4px solid #0f3e1e; color: #306230; background: rgba(15,62,30,0.1); }
body[data-theme="gameboy"] .markdown-body code { background: #306230; color: #c3cba3; border-radius: 2px; }
body[data-theme="gameboy"] .markdown-body pre { background: #0f3e1e; border: 2px solid #306230; border-radius: 2px; }
body[data-theme="gameboy"] .markdown-body pre code { color: #9bbc0f; background: transparent; }
body[data-theme="gameboy"] .markdown-body th,body[data-theme="gameboy"] .markdown-body td { border: 2px solid #0f3e1e; }
body[data-theme="gameboy"] .markdown-body th { background: #306230; color: #9bbc0f; }
body[data-theme="gameboy"] .markdown-body tr:nth-child(2n) { background: #8bab0c; }
body[data-theme="gameboy"] .markdown-body hr { background: #0f3e1e; height: 3px; }
body[data-theme="gameboy"] .markdown-body strong { color: #082008; }
body[data-theme="gameboy"] .markdown-body li::marker { color: #306230; }
body[data-theme="gameboy"] .ai-float-btn { background: #0f3e1e; color: #9bbc0f; border-radius: 2px; box-shadow: 3px 3px 0 rgba(15,62,30,0.5); }
body[data-theme="gameboy"] .ai-float-btn:hover { background: #306230; }
body[data-theme="gameboy"] .modal { background: #dfe7c8; border: 3px solid #0f3e1e; border-radius: 2px; box-shadow: 6px 6px 0 rgba(15,62,30,0.5); }
body[data-theme="gameboy"] .modal-header { border-bottom: 2px solid #0f3e1e; }
body[data-theme="gameboy"] .modal-header h3 { color: #0f3e1e; }
body[data-theme="gameboy"] .modal-close { color: #306230; border-radius: 2px; }
body[data-theme="gameboy"] .modal-close:hover { background: #9bbc0f; color: #0f3e1e; }
body[data-theme="gameboy"] .ai-selection-preview { background: #c3cba3; border-left-color: #0f3e1e; color: #1b3a1b; border-radius: 2px; }
body[data-theme="gameboy"] .ai-input-row input { background: #eff5da; border: 2px solid #0f3e1e; color: #0f3e1e; border-radius: 2px; }
body[data-theme="gameboy"] .ai-input-row input:focus { border-color: #306230; }
body[data-theme="gameboy"] .ai-send-btn { background: #0f3e1e; color: #9bbc0f; border-radius: 2px; }
body[data-theme="gameboy"] .ai-send-btn:hover { background: #306230; }
body[data-theme="gameboy"] .ai-response { background: #c3cba3; border-color: #0f3e1e; color: #1b3a1b; border-radius: 2px; }
body[data-theme="gameboy"] .settings-label { color: #0f3e1e; }
body[data-theme="gameboy"] .settings-hint { color: #4a6b40; }
body[data-theme="gameboy"] .settings-hint a { color: #2c5b2c; }
body[data-theme="gameboy"] .settings-saved { color: #0f3e1e; }

/* Math on dark themes: KaTeX inherits currentColor, only errors need a lift */
body[data-theme="scifi"] .markdown-body .katex-error,
body[data-theme="pixel"] .markdown-body .katex-error,
body[data-theme="midnight"] .markdown-body .katex-error,
body[data-theme="nord"] .markdown-body .katex-error,
body[data-theme="dracula"] .markdown-body .katex-error,
body[data-theme="synthwave"] .markdown-body .katex-error,
body[data-theme="terminal"] .markdown-body .katex-error,
body[data-theme="scifi"] .markdown-body .math-error,
body[data-theme="pixel"] .markdown-body .math-error,
body[data-theme="midnight"] .markdown-body .math-error,
body[data-theme="nord"] .markdown-body .math-error,
body[data-theme="dracula"] .markdown-body .math-error,
body[data-theme="synthwave"] .markdown-body .math-error,
body[data-theme="terminal"] .markdown-body .math-error { color: #ff7b72 !important; }
body[data-theme="pixel"] .markdown-body .katex { font-size: 1.12em; }

/* ===== Corner media players ===== */
.media-slot {
  position: fixed; bottom: 16px; z-index: 40; min-width: 0;
  width: min(320px, calc(50vw - 24px));
  display: flex; flex-direction: column; align-items: flex-start;
}
.music-slot { left: 16px; width: min(240px, calc(50vw - 24px)); }
.youtube-slot { right: 16px; align-items: flex-end; }
.media-slot > .panel-launcher {
  display: flex; align-items: center; justify-content: center; width: 44px; height: 44px;
  padding: 0.6rem; font: inherit;
  border: 1px solid var(--sp-border, #d0d7de); border-radius: var(--sp-radius);
  color: var(--sp-text, #1f2328); background: var(--sp-surface, #fff);
  box-shadow: 0 3px 14px rgba(0,0,0,0.04); cursor: pointer;
}
.panel-launcher svg { flex-shrink: 0; color: var(--sp-accent, #0969da); }
.music-activity { display: none; flex-shrink: 0; align-items: end; gap: 2px; width: 18px; height: 18px; color: var(--sp-accent, #0969da); }
.music-slot.is-playing .music-activity { display: inline-flex; }
.music-slot.is-playing .music-idle-icon { display: none; }
.music-activity i {
  display: block; width: 3px; height: 100%; border-radius: 2px; background: currentColor;
  transform-origin: bottom; animation: music-bounce 0.7s ease-in-out infinite alternate;
}
.music-activity i:nth-child(2) { animation-duration: 0.95s; animation-delay: -0.3s; --music-level: 0.85; }
.music-activity i:nth-child(3) { animation-duration: 0.6s; animation-delay: -0.5s; --music-level: 0.55; }
.music-activity i:nth-child(4) { animation-duration: 0.85s; animation-delay: -0.2s; --music-level: 1; }
@keyframes music-bounce {
  from { transform: scaleY(0.25); }
  to { transform: scaleY(1); }
}
@media (prefers-reduced-motion: reduce) {
  .music-activity i { animation: none; transform: scaleY(var(--music-level, 0.4)); }
}
.media-title {
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
  padding: 0.8rem 4rem 0.8rem 1rem;
}
.media-title h2 { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 0.82rem; font-weight: 600; }
.media-panel-actions { position: absolute; top: 0.65rem; right: 0.65rem; z-index: 1; display: flex; gap: 0.25rem; }
.media-slot :focus-visible { outline: 2px solid var(--sp-accent, #0969da); outline-offset: 2px; }
.spotify-player, .youtube-player {
  position: relative;
  width: 100%; min-width: 0; max-height: calc(100dvh - 32px); overflow-x: hidden; overflow-y: auto;
  border: 1px solid var(--sp-border, #d0d7de);
}
.compact .media-settings { display: none; }
.spotify-player.compact .sp-np-meta { padding-right: 52px; }
.spotify-player.compact .sp-nowplaying { border-bottom: 0; }
.youtube-player.compact { padding-top: 2rem; }
.youtube-player.compact .media-panel-actions { top: 0.3rem; }
.spotify-player {
  background: var(--sp-surface, #fff);
  border-radius: var(--sp-radius, 10px);
  box-shadow: 0 3px 14px rgba(0,0,0,0.04); color: var(--sp-text, #1f2328);
}
.sp-head {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0 0.75rem 0.75rem; user-select: none;
  border-bottom: 1px solid var(--sp-border, #d0d7de);
}
.spotify-player.collapsed .sp-head { border-bottom-color: transparent; }
.sp-grip { color: var(--sp-accent, #1db954); font-size: 0.95rem; flex-shrink: 0; line-height: 1; }
.sp-title { font-size: 0.78rem; font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sp-actions { display: flex; align-items: center; gap: 0.15rem; flex-shrink: 0; }
.sp-bar-controls { flex: 1; display: flex; align-items: center; gap: 0.3rem; min-width: 0; }
.sp-bar-controls input {
  flex: 1; min-width: 0; padding: 0.28rem 0.45rem; font-size: 0.72rem;
  color: var(--sp-text, #1f2328); background: transparent;
  border: 1px solid var(--sp-border, #d0d7de); border-radius: var(--sp-radius, 10px); outline: none;
}
.sp-bar-controls input:focus { border-color: var(--sp-accent, #0969da); }
.sp-bar-controls input::placeholder { color: var(--sp-text, #1f2328); opacity: 0.5; }
.sp-bar-controls .sp-load-btn { padding: 0.28rem 0.5rem; font-size: 0.7rem; }
.sp-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border: none; background: transparent;
  color: var(--sp-text, #1f2328); opacity: 0.7; cursor: pointer;
  border-radius: var(--sp-radius, 10px); font-size: 0.95rem; line-height: 1;
}
.sp-btn:hover { opacity: 1; color: var(--sp-accent, #0969da); }
.sp-input-row { display: flex; gap: 0.4rem; padding: 0.6rem; }
.sp-input-row input {
  flex: 1; min-width: 0; padding: 0.4rem 0.55rem; font-size: 0.78rem;
  color: var(--sp-text, #1f2328); background: transparent;
  border: 1px solid var(--sp-border, #d0d7de); border-radius: var(--sp-radius, 10px); outline: none;
}
.sp-input-row input:focus { border-color: var(--sp-accent, #0969da); }
.sp-load-btn {
  padding: 0.4rem 0.7rem; font-size: 0.76rem; font-weight: 600; white-space: nowrap;
  color: #fff; background: var(--sp-accent, #0969da); border: none;
  border-radius: var(--sp-radius, 10px); cursor: pointer;
}
.sp-error { margin: 0 0.6rem 0.5rem; font-size: 0.72rem; color: #cf222e; }

/* YouTube reuses the themed media controls. */
.youtube-player {
  background: var(--sp-surface, #fff);
  border-radius: var(--sp-radius, 10px);
  box-shadow: 0 3px 14px rgba(0,0,0,0.04); color: var(--sp-text, #1f2328);
}
.yt-frame { width: 100%; aspect-ratio: 16 / 9; background: #000; }
.yt-frame iframe { display: block; width: 100%; height: 100%; border: 0; }
.youtube-player .media-title { padding-right: 7rem; }
.yt-pip-btn { width: auto; min-width: 28px; padding: 0 0.3rem; font-size: 0.68rem; font-weight: 600; }
.yt-pip-btn:disabled { opacity: 0.45; cursor: wait; }
.yt-pip-status { margin: 0; padding: 0.7rem; font-size: 0.75rem; line-height: 1.5; }

/* Shared panel chrome follows the active document's theme. */
body[data-theme="default"] { --sp-surface:#fff; --sp-border:#d0d7de; --sp-text:#1f2328; --sp-accent:#0969da; }
body[data-theme="office"] { --sp-surface:#fffdf8; --sp-border:#d4c9b5; --sp-text:#2c2416; --sp-accent:#6b4c2a; }
body[data-theme="sepia"] { --sp-surface:#fbf5e6; --sp-border:#e3d5b8; --sp-text:#5b4636; --sp-accent:#9c5c28; }
body[data-theme="notion"] { --sp-surface:#fff; --sp-border:#e0e0de; --sp-text:#37352f; --sp-accent:#3183f8; }
body[data-theme="midnight"] { --sp-surface:#151b33; --sp-border:#232b4d; --sp-text:#c6d0f0; --sp-accent:#7aa2f7; }
body[data-theme="nord"] { --sp-surface:#3b4252; --sp-border:#4c566a; --sp-text:#d8dee9; --sp-accent:#88c0d0; }
body[data-theme="dracula"] { --sp-surface:#343746; --sp-border:#44475a; --sp-text:#f8f8f2; --sp-accent:#bd93f9; }
body[data-theme="scifi"] { --sp-surface:#0f1520; --sp-border:#1a2744; --sp-text:#c8d6e5; --sp-accent:#00e5ff; }
body[data-theme="synthwave"] { --sp-surface:#1d1138; --sp-border:#5ad1e6; --sp-text:#f4efff; --sp-accent:#ff6ec7; }
body[data-theme="pixel"] { --sp-surface:#262b44; --sp-border:#3e4366; --sp-text:#e8e8e8; --sp-accent:#f7d54a; --sp-radius:0; }
body[data-theme="terminal"] { --sp-surface:#071207; --sp-border:#1c4a26; --sp-text:#33ff66; --sp-accent:#33ff66; --sp-radius:0; }
body[data-theme="gameboy"] { --sp-surface:#dfe7c8; --sp-border:#0f3e1e; --sp-text:#0f3e1e; --sp-accent:#0f3e1e; --sp-radius:2px; }
body:is([data-theme="midnight"], [data-theme="nord"], [data-theme="dracula"], [data-theme="scifi"], [data-theme="synthwave"], [data-theme="pixel"], [data-theme="terminal"]) { --sp-error: #ff9b94; }

/* ===== Footnote (<details>) theme chrome ===== */
body[data-theme="scifi"] .markdown-body details { background: rgba(0,229,255,0.05); border-color: #1a2744; border-left: 3px solid #00e5ff; border-radius: 6px; }
body[data-theme="scifi"] .markdown-body details > summary { color: #00e5ff; }
body[data-theme="scifi"] .markdown-body details > summary::before { color: #00e5ff; }
body[data-theme="scifi"] .markdown-body details[open] > summary { border-bottom-color: #1a2744; }
body[data-theme="office"] .markdown-body details { background: rgba(201,185,154,0.12); border-color: #d4c9b5; border-left: 3px solid #6b4c2a; border-radius: 6px; }
body[data-theme="office"] .markdown-body details > summary { color: #6b4c2a; }
body[data-theme="office"] .markdown-body details > summary::before { color: #6b4c2a; }
body[data-theme="office"] .markdown-body details[open] > summary { border-bottom-color: #d4c9b5; }
body[data-theme="sepia"] .markdown-body details { background: rgba(156,92,40,0.06); border-color: #e3d5b8; border-left: 3px solid #9c5c28; border-radius: 6px; }
body[data-theme="sepia"] .markdown-body details > summary { color: #9c5c28; }
body[data-theme="sepia"] .markdown-body details > summary::before { color: #9c5c28; }
body[data-theme="sepia"] .markdown-body details[open] > summary { border-bottom-color: #e3d5b8; }
body[data-theme="notion"] .markdown-body details { background: #fafaf9; border-color: #e0e0de; border-left: 3px solid #37352f; border-radius: 6px; }
body[data-theme="notion"] .markdown-body details > summary { color: #37352f; }
body[data-theme="notion"] .markdown-body details > summary::before { color: #37352f; }
body[data-theme="notion"] .markdown-body details[open] > summary { border-bottom-color: #e0e0de; }
body[data-theme="midnight"] .markdown-body details { background: rgba(122,162,247,0.08); border-color: #232b4d; border-left: 3px solid #7aa2f7; border-radius: 6px; }
body[data-theme="midnight"] .markdown-body details > summary { color: #7aa2f7; }
body[data-theme="midnight"] .markdown-body details > summary::before { color: #7aa2f7; }
body[data-theme="midnight"] .markdown-body details[open] > summary { border-bottom-color: #232b4d; }
body[data-theme="nord"] .markdown-body details { background: rgba(136,192,208,0.08); border-color: #4c566a; border-left: 3px solid #88c0d0; border-radius: 6px; }
body[data-theme="nord"] .markdown-body details > summary { color: #88c0d0; }
body[data-theme="nord"] .markdown-body details > summary::before { color: #88c0d0; }
body[data-theme="nord"] .markdown-body details[open] > summary { border-bottom-color: #4c566a; }
body[data-theme="dracula"] .markdown-body details { background: rgba(255,121,198,0.07); border-color: #44475a; border-left: 3px solid #ff79c6; border-radius: 6px; }
body[data-theme="dracula"] .markdown-body details > summary { color: #ff79c6; }
body[data-theme="dracula"] .markdown-body details > summary::before { color: #ff79c6; }
body[data-theme="dracula"] .markdown-body details[open] > summary { border-bottom-color: #44475a; }
body[data-theme="synthwave"] .markdown-body details { background: rgba(255,110,199,0.07); border-color: #5ad1e6; border-left: 3px solid #ff6ec7; border-radius: 6px; }
body[data-theme="synthwave"] .markdown-body details > summary { color: #ff6ec7; }
body[data-theme="synthwave"] .markdown-body details > summary::before { color: #ff6ec7; }
body[data-theme="synthwave"] .markdown-body details[open] > summary { border-bottom-color: #5ad1e6; }
body[data-theme="pixel"] .markdown-body details { background: rgba(184,69,110,0.08); border-color: #3e4366; border-left: 4px solid #b8456e; border-radius: 0; }
body[data-theme="pixel"] .markdown-body details > summary { color: #f7d54a; }
body[data-theme="pixel"] .markdown-body details > summary::before { color: #f7d54a; }
body[data-theme="pixel"] .markdown-body details[open] > summary { border-bottom-color: #3e4366; }
body[data-theme="terminal"] .markdown-body details { background: rgba(51,255,102,0.05); border-color: #1c4a26; border-left: 3px solid #33ff66; border-radius: 0; }
body[data-theme="terminal"] .markdown-body details > summary { color: #33ff66; }
body[data-theme="terminal"] .markdown-body details > summary::before { color: #33ff66; }
body[data-theme="terminal"] .markdown-body details[open] > summary { border-bottom-color: #1c4a26; }
body[data-theme="gameboy"] .markdown-body details { background: rgba(15,62,30,0.10); border-color: #0f3e1e; border-left: 4px solid #0f3e1e; border-radius: 2px; }
body[data-theme="gameboy"] .markdown-body details > summary { color: #0f3e1e; }
body[data-theme="gameboy"] .markdown-body details > summary::before { color: #0f3e1e; }
body[data-theme="gameboy"] .markdown-body details[open] > summary { border-bottom-color: #0f3e1e; }

/* Now playing bar */
.sp-nowplaying {
  display: grid; grid-template-columns: 38px minmax(0, 1fr) 54px;
  align-items: center; gap: 0.65rem 0.5rem;
  padding: 0.75rem; border-bottom: 1px solid var(--sp-border, #d0d7de);
}
.sp-cover { width: 38px; height: 38px; border-radius: 5px; object-fit: cover; flex-shrink: 0; background: var(--sp-border, #d0d7de); }
.sp-np-meta { grid-column: 2 / -1; min-width: 0; }
.sp-np-track { display: flex; align-items: center; gap: 0.4rem; min-width: 0; }
.sp-np-track .sp-np-title { flex: 1; min-width: 0; }
.sp-np-track .music-activity { height: 12px; }
.sp-np-title { font-size: 0.74rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-np-artist { font-size: 0.66rem; opacity: 0.7; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-controls { display: inline-flex; align-items: center; gap: 0.05rem; grid-column: 1 / 3; justify-self: start; }
.sp-controls button { width: 24px; height: 24px; border: none; background: transparent; cursor: pointer; color: var(--sp-text, #1f2328); font-size: 0.8rem; line-height: 1; border-radius: 6px; opacity: 0.85; }
.sp-controls button:hover { opacity: 1; color: var(--sp-accent, #0969da); }
.sp-volume { width: 54px; accent-color: var(--sp-accent, #1db954); flex-shrink: 0; }

/* Auth view */
.sp-auth { padding: 1rem 0.9rem; text-align: center; }
.sp-auth-hint { font-size: 0.75rem; color: var(--sp-text, #1f2328); opacity: 0.75; margin-bottom: 0.7rem; line-height: 1.45; }
.sp-login-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  width: 100%; padding: 0.55rem 0.8rem; font-size: 0.85rem; font-weight: 600;
  color: #fff; background: var(--sp-accent, #1db954); border: none;
  border-radius: var(--sp-radius, 10px); cursor: pointer; transition: filter 0.15s;
}
.sp-login-btn:hover { filter: brightness(1.08); }

/* Library view */
.sp-tabs { display: flex; gap: 0.25rem; padding: 0.55rem 0.6rem 0.3rem; }
.sp-tab {
  flex: 1; padding: 0.3rem 0.2rem; font-size: 0.72rem; font-weight: 600; cursor: pointer;
  color: var(--sp-text, #1f2328); opacity: 0.6; background: transparent;
  border: 1px solid transparent; border-radius: 6px; transition: opacity 0.12s, color 0.12s;
}
.sp-tab:hover { opacity: 0.9; }
.sp-tab.active { opacity: 1; color: var(--sp-accent, #0969da); border-color: var(--sp-border, #d0d7de); }
.sp-list { max-height: 220px; overflow-y: auto; padding: 0.2rem 0.35rem 0.5rem; }
.sp-row {
  display: flex; align-items: center; gap: 0.5rem; width: 100%; text-align: left;
  padding: 0.35rem 0.4rem; border: none; background: transparent; cursor: pointer;
  border-radius: 6px; color: var(--sp-text, #1f2328);
}
.sp-row:hover { background: rgba(128,128,128,0.14); }
.sp-thumb { width: 34px; height: 34px; border-radius: 4px; object-fit: cover; flex-shrink: 0; background: var(--sp-border, #d0d7de); }
.sp-row-meta { min-width: 0; display: flex; flex-direction: column; }
.sp-row-name { font-size: 0.75rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-row-sub { font-size: 0.65rem; opacity: 0.65; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-empty { padding: 1rem; text-align: center; font-size: 0.75rem; opacity: 0.6; }
.sp-link-pane { padding: 0.2rem 0; }

/* Settings divider */
.settings-sep { border: none; border-top: 1px solid rgba(128,128,128,0.3); margin: 1.2rem 0 1rem; }

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .workspace { grid-template-columns: 220px minmax(0, 1fr); grid-template-areas: "left main" "left media"; gap: 20px; padding: 20px; }
  .music-slot { width: min(220px, calc(50vw - 24px)); }
}
@media (max-width: 760px) {
  .workspace { grid-template-columns: minmax(0, 1fr); grid-template-areas: "left" "main" "media"; padding: 16px; }
  .workspace-rail { gap: 16px; }
  .library-files { max-height: 300px; }
}
@media (max-width: 640px) {
  .spotify-player.compact .sp-nowplaying { padding-top: 2.25rem; }
  .spotify-player.compact .sp-np-meta { padding-right: 0; }
  .sp-nowplaying { grid-template-columns: 38px minmax(0, 1fr); }
  .sp-np-meta { grid-column: 2; }
  .sp-controls { grid-column: 1 / -1; }
  .sp-volume { grid-column: 1 / -1; width: 100%; }
  .app-wrapper { padding: 0; }
  .markdown-body { padding: 1.25rem 1rem; }
  .logo { font-size: 2rem; }
  .drop-zone-inner { padding: 2rem 1.25rem; }
  .top-bar { flex-wrap: wrap; }
  .modal { max-width: 100%; }
  .help-grid { grid-template-columns: 1fr; }
  .editor-input { min-height: 50vh; }
}