/* AI-assistant skin: recent chats on the left, the page as the assistant's answer card, a prompt box pinned at the bottom.
   Light and airy, rounded, one soft gradient of our own. Dark tokens are in dark.css. */
html[data-skin="gemini"] {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --bg: #ffffff; --fg: #1d1f24; --muted: #5d6270; --line: #e3e6ee; --subtle: #f3f5fa;
  --accent: #4c5fe6; --good: #188a5a; --bad: #d93838; --focus: #4c5fe6;
  --as-side: #f3f5fa; --as-hover: rgba(29, 31, 36, .06); --as-sel: #dfe5fb; --as-user: #eef1f8; --as-box: #f3f5fa;
  --as-grad: linear-gradient(120deg, #2bb5c8, #5b6cff 50%, #a35bff);
  --as-grad-soft: linear-gradient(120deg, rgba(43, 181, 200, .45), rgba(91, 108, 255, .45) 50%, rgba(163, 91, 255, .45));
  --rail-w: auto;
}
[data-skin="gemini"] body { font-size: 15px; line-height: 1.6; background: var(--bg); }

/* frame: the rail spans the full height, the prompt box sticks to the bottom of the answer column */
[data-skin="gemini"] .app { display: grid; grid-template-columns: 280px minmax(0, 1fr); grid-template-rows: auto 1fr auto; }
[data-skin="gemini"] .app-body { display: contents; }
[data-skin="gemini"] .app-side { grid-column: 1; grid-row: 1 / 4; position: sticky; top: 0; height: 100vh; height: 100dvh; display: flex; flex-direction: column; gap: 2px; padding: 12px; background: var(--as-side); font-size: 14px; overflow-y: auto; scrollbar-width: thin; }
[data-skin="gemini"] .app-top { grid-column: 2; grid-row: 1; position: sticky; top: 0; z-index: 20; background: var(--bg); }
[data-skin="gemini"] .app-stage { grid-column: 2; grid-row: 2; width: 100%; max-width: 860px; margin: 0 auto; padding: 8px 24px 24px; }
[data-skin="gemini"] .app-foot { grid-column: 2; grid-row: 3; position: sticky; bottom: 0; z-index: 20; padding: 16px 24px 10px; background: linear-gradient(rgba(255, 255, 255, 0), var(--bg) 28%); }

/* top bar */
[data-skin="gemini"] .as-nav { display: flex; align-items: center; gap: 8px; height: 60px; padding: 0 16px 0 20px; }
[data-skin="gemini"] .as-iconbtn { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; color: var(--muted); flex: none; }
[data-skin="gemini"] .as-iconbtn:hover { background: var(--as-hover); }
[data-skin="gemini"] .as-iconbtn svg { width: 20px; height: 20px; }
[data-skin="gemini"] .as-brand { display: inline-flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 500; letter-spacing: -.01em; white-space: nowrap; }
[data-skin="gemini"] .as-mark, [data-skin="gemini"] .as-av { display: grid; width: 26px; height: 26px; padding: 3px; flex: none; border-radius: 50%; background: var(--as-grad); color: transparent; --logo-fg: #fff; }
[data-skin="gemini"] .as-model { display: inline-flex; align-items: center; gap: 4px; height: 32px; padding: 0 10px; margin-left: 2px; border-radius: 999px; background: var(--subtle); color: var(--muted); font-size: 13px; white-space: nowrap; }
[data-skin="gemini"] .as-pro { height: 32px; padding: 0 14px; border-radius: 999px; background: var(--as-sel); color: var(--accent); font-size: 13px; font-weight: 600; display: inline-flex; align-items: center; white-space: nowrap; }
[data-skin="gemini"] .skin-btn { height: 36px; padding: 0 12px; border: 0; border-radius: 999px; color: var(--muted); }
[data-skin="gemini"] .skin-btn:hover { background: var(--as-hover); }
[data-skin="gemini"] .as-me { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: #2b8a6e; color: #fff; font-size: 13px; font-weight: 600; flex: none; }

/* left rail */
[data-skin="gemini"] .as-sidetop { display: flex; align-items: center; margin-bottom: 8px; }
[data-skin="gemini"] .as-new { display: inline-flex; align-items: center; gap: 10px; align-self: flex-start; height: 40px; padding: 0 16px; margin-bottom: 18px; border-radius: 999px; color: var(--muted); font-weight: 500; }
[data-skin="gemini"] .as-new:hover { background: var(--as-hover); }
[data-skin="gemini"] .as-sidegroup { padding: 4px 16px 6px; font-weight: 600; color: var(--fg); }
[data-skin="gemini"] .as-chat { display: flex; align-items: center; gap: 10px; flex: none; height: 36px; padding: 0 16px; border-radius: 999px; color: var(--fg); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
[data-skin="gemini"] a.as-chat:hover { background: var(--as-hover); }
[data-skin="gemini"] .as-chat.on { background: var(--as-sel); color: var(--accent); font-weight: 600; }
[data-skin="gemini"] .as-sidefoot { margin-top: 12px; color: var(--muted); }

/* the turn: the question on the right, the answer under it */
[data-skin="gemini"] .page-head { margin: 8px 0 14px; }
[data-skin="gemini"] .as-user { display: flex; justify-content: flex-end; margin-bottom: 20px; }
[data-skin="gemini"] .as-user p { max-width: 75%; padding: 12px 18px; border-radius: 24px 6px 24px 24px; background: var(--as-user); }
[data-skin="gemini"] .as-reply { display: flex; gap: 14px; align-items: flex-start; }
[data-skin="gemini"] .as-av { width: 30px; height: 30px; padding: 4px; margin-top: 2px; }
[data-skin="gemini"] .as-think { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--muted); }
[data-skin="gemini"] .as-reply h1 { font-size: 22px; font-weight: 500; line-height: 1.4; letter-spacing: -.01em; }
[data-skin="gemini"] .page-cols { flex-direction: column; gap: 20px; margin-left: 44px; padding: 24px; border: 1px solid transparent; border-radius: 28px;
  background: linear-gradient(var(--bg), var(--bg)) padding-box, var(--as-grad-soft) border-box; box-shadow: 0 2px 12px rgba(76, 95, 230, .06); }
[data-skin="gemini"] .page-rail { width: auto; padding-top: 18px; border-top: 1px solid var(--line); }
[data-skin="gemini"] body[data-page="match"] .page-rail { order: -1; padding: 0 0 18px; border: 0; border-bottom: 1px solid var(--line); }
[data-skin="gemini"] .as-railhead { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; font-size: 14px; font-weight: 600; color: var(--muted); }
[data-skin="gemini"] .nw-foot { margin: 28px 0 0; }
[data-skin="gemini"] .nw-ad { border-top-color: var(--line); }

/* prompt box (decorative) */
[data-skin="gemini"] .as-composer { max-width: 812px; margin: 0 auto; }
[data-skin="gemini"] .as-box { display: flex; flex-direction: column; gap: 6px; padding: 14px 16px 10px 22px; border-radius: 28px; background: var(--as-box); box-shadow: 0 0 0 1px var(--line); }
[data-skin="gemini"] .as-ph { color: var(--muted); font-size: 16px; }
[data-skin="gemini"] .as-tools { display: flex; align-items: center; gap: 12px; margin-left: -8px; color: var(--muted); }
[data-skin="gemini"] .as-tools > svg { width: 20px; height: 20px; }
[data-skin="gemini"] .as-tool { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; }
[data-skin="gemini"] .as-note { margin-top: 8px; text-align: center; font-size: 12px; color: var(--muted); }
[data-skin="gemini"] .fb-btn { bottom: 120px; }
[data-skin="gemini"] body[data-page="chat"] .app-foot { display: none; }
[data-skin="gemini"] body[data-page="chat"] .fb-btn { bottom: 16px; }

/* hub: the answer */
[data-skin="gemini"] .as-hub > p { margin: 0 0 16px; }
[data-skin="gemini"] .as-hub h2 { font-size: 17px; font-weight: 600; margin: 26px 0 12px; }
[data-skin="gemini"] .as-cd { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; padding: 14px 18px; border-radius: 20px; background: var(--subtle); }
[data-skin="gemini"] .as-cd b { font-variant-numeric: tabular-nums; }
[data-skin="gemini"] .as-cd label { color: var(--muted); font-size: 14px; }
[data-skin="gemini"] .as-bar { flex-basis: 100%; height: 6px; border-radius: 999px; background: var(--line); overflow: hidden; }
[data-skin="gemini"] .as-bar i { display: block; height: 100%; background: var(--as-grad); border-radius: inherit; }
[data-skin="gemini"] .as-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
[data-skin="gemini"] .as-card { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: 18px; background: var(--subtle); transition: background .15s; }
[data-skin="gemini"] .as-card:hover { background: var(--as-sel); }
[data-skin="gemini"] .as-cardemoji { font-size: 22px; line-height: 1.2; }
[data-skin="gemini"] .as-card b { font-weight: 600; }
[data-skin="gemini"] .as-card span:last-child { font-size: 13px; line-height: 1.5; color: var(--muted); }
[data-skin="gemini"] .as-hub > p:last-of-type { margin-top: 24px; }
[data-skin="gemini"] .as-acts { display: flex; gap: 18px; margin-top: 8px; color: var(--muted); }
[data-skin="gemini"] .as-acts svg { width: 18px; height: 18px; }
[data-skin="gemini"] .flip { display: inline-flex; transform: rotate(180deg); }
[data-skin="gemini"] .as-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
[data-skin="gemini"] .as-chips a { padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); font-size: 14px; }
[data-skin="gemini"] .as-chips a:hover { background: var(--subtle); }

/* shared page parts */
[data-skin="gemini"] kbd { background: var(--subtle); border-color: var(--line); color: var(--fg); border-radius: 6px; }
[data-skin="gemini"] .cd-input { border: 1px solid var(--line); border-radius: 999px; background: var(--bg); padding: 2px 10px; font-size: 13px; }
[data-skin="gemini"] .cd-input:focus { outline: 2px solid var(--focus); outline-offset: -1px; }
[data-skin="gemini"] .btn { display: inline-flex; align-items: center; gap: 6px; height: 38px; padding: 0 18px; border-radius: 999px; cursor: pointer; border: 1px solid var(--line); background: var(--bg); color: var(--accent); font-size: 14px; font-weight: 600; white-space: nowrap; }
[data-skin="gemini"] .btn:hover { background: var(--subtle); }
[data-skin="gemini"] .btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
[data-skin="gemini"] .btn.primary:hover { background: #3e50d4; }
[data-skin="gemini"] .result-actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0 0 44px; }
[data-skin="gemini"] .ritual { margin-left: 44px; }
[data-skin="gemini"] .field { padding: 0 0 14px; }
[data-skin="gemini"] .field + .field { padding-top: 14px; border-top: 1px solid var(--line); }
[data-skin="gemini"] .field-label { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
[data-skin="gemini"] .field-value { color: var(--fg); }
[data-skin="gemini"] .modes { display: flex; flex-wrap: wrap; gap: 8px; }
[data-skin="gemini"] .mode { display: flex; gap: 8px; align-items: flex-start; padding: 8px 14px; border: 1px solid var(--line); border-radius: 16px; cursor: pointer; }
[data-skin="gemini"] .mode:hover { background: var(--subtle); }
[data-skin="gemini"] .mode:has(input:checked) { background: var(--as-sel); border-color: transparent; }
[data-skin="gemini"] .mode input { margin: 4px 0 0; accent-color: var(--accent); }
[data-skin="gemini"] .mode b { display: block; font-weight: 600; font-size: 14px; }
[data-skin="gemini"] .mode small { color: var(--muted); font-size: 12px; }
[data-skin="gemini"] .labels { display: flex; flex-wrap: wrap; gap: 6px; }
[data-skin="gemini"] .lbl { padding: 2px 12px; border-radius: 999px; font-size: 13px; background: var(--subtle); }
[data-skin="gemini"] .lbl.l1 { background: #e3ecff; color: #2d4bb8; } [data-skin="gemini"] .lbl.l2 { background: #efe5ff; color: #6a3dc2; }
[data-skin="gemini"] .lbl.l3 { background: #def5ec; color: #146b4a; } [data-skin="gemini"] .lbl.l4 { background: #ffeadd; color: #a14a13; }
[data-skin="gemini"] .hint { color: var(--muted); }
/* the match thread: assistant messages */
[data-skin="gemini"] .entry { display: grid; grid-template-columns: 32px minmax(0, 1fr); column-gap: 12px; margin: 0 0 22px; }
[data-skin="gemini"] .entry-av { grid-row: 1 / 3; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; font-weight: 600; color: #fff; }
[data-skin="gemini"] .entry-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
[data-skin="gemini"] .entry-title { color: var(--fg); font-weight: 600; font-size: 15px; }
[data-skin="gemini"] .entry-score { padding: 0 10px; border-radius: 999px; background: #def5ec; color: #146b4a; font-size: 12px; font-weight: 600; line-height: 22px; }
[data-skin="gemini"] .entry-body { line-height: 1.7; }
[data-skin="gemini"] .entry-body p + p { margin-top: 8px; }
[data-skin="gemini"] .entry-body .chips, [data-skin="gemini"] .entry-body .mission { margin-top: 10px; }
[data-skin="gemini"] .entry-body .criterion { color: var(--muted); }
[data-skin="gemini"] .entry.pair .entry-body, [data-skin="gemini"] .entry.solo .entry-body, [data-skin="gemini"] .entry.group .entry-body, [data-skin="gemini"] .entry.summary .entry-body { padding: 14px 18px; border-radius: 6px 22px 22px 22px; background: var(--subtle); }
[data-skin="gemini"] .entry.solo .entry-body { background: #fff6d9; }
[data-skin="gemini"] .composer .name-input { width: 100%; min-height: 48px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 24px; background: var(--as-box); }
[data-skin="gemini"] .composer .name-input:focus-within { border-color: var(--accent); background: var(--bg); }
[data-skin="gemini"] .composer-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
[data-skin="gemini"] .game {
  --board-bg: var(--subtle); --cell-bg: rgba(29, 31, 36, .05); --tile-radius: 12px; --board-radius: 22px;
  --t2-bg: #ffffff; --t2-fg: #1d1f24; --t4-bg: #e3ecff; --t4-fg: #2d4bb8; --t8-bg: #c9d6ff; --t8-fg: #23399a;
  --t16-bg: #8fa2ff; --t16-fg: #fff; --t32-bg: #5b6cff; --t32-fg: #fff; --t64-bg: #8a63f2; --t64-fg: #fff;
  --t128-bg: #a35bff; --t128-fg: #fff; --t256-bg: #2bb5c8; --t256-fg: #fff; --t512-bg: #1f97a8; --t512-fg: #fff;
  --t1024-bg: #ef6aa2; --t1024-fg: #fff; --t2048-bg: #1d1f24; --t2048-fg: #fff;
}

@media (max-width: 1011px) {
  [data-skin="gemini"] .app { grid-template-columns: 240px minmax(0, 1fr); }
}
@media (max-width: 800px) {
  [data-skin="gemini"] .app { grid-template-columns: minmax(0, 1fr); }
  [data-skin="gemini"] .app-side { display: none; }
  [data-skin="gemini"] .app-top, [data-skin="gemini"] .app-stage, [data-skin="gemini"] .app-foot { grid-column: 1; }
  [data-skin="gemini"] .as-nav { height: 56px; padding: 0 8px; gap: 4px; }
  [data-skin="gemini"] .as-brand { font-size: 17px; }
  [data-skin="gemini"] .as-brand .as-mark { display: none; }
  [data-skin="gemini"] .as-model { padding: 0 8px; font-size: 12px; }
  [data-skin="gemini"] .skin-btn { padding: 0 8px; }
  [data-skin="gemini"] .app-stage { padding: 4px 16px 16px; }
  [data-skin="gemini"] .as-user p { max-width: 88%; }
  [data-skin="gemini"] .as-reply { gap: 10px; }
  [data-skin="gemini"] .as-reply h1 { font-size: 19px; }
  [data-skin="gemini"] .page-cols { margin-left: 0; padding: 16px; border-radius: 22px; }
  [data-skin="gemini"] .result-actions, [data-skin="gemini"] .ritual { margin-left: 0; }
  [data-skin="gemini"] .app-foot { padding: 10px 12px 8px; }
  [data-skin="gemini"] .as-box { flex-direction: row; align-items: center; gap: 10px; padding: 10px 16px; color: var(--muted); }
  [data-skin="gemini"] .as-ph { flex: 1; font-size: 15px; }
  [data-skin="gemini"] .as-tools { display: contents; }
  [data-skin="gemini"] .as-tools > svg:first-child { order: -1; }
  [data-skin="gemini"] .as-tools .grow { display: none; }
  [data-skin="gemini"] .fb-btn { bottom: 76px; }
  [data-skin="gemini"] .as-cards { grid-template-columns: minmax(0, 1fr); }
}