:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --ink: #1f2328;
  --muted: #6b7078;
  --line: #e7e2d9;
  --accent: #2f5bd3;
  --accent-soft: #eaf0ff;
  --good: #1f7a4d;
  --good-soft: #e5f4ec;
  --warn-soft: #fff5e0;
  --bar-rel: #2f5bd3;
  --bar-due: #c07a12;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 4px 16px rgba(0,0,0,.04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171a; --surface: #1d2024; --ink: #e8e6e3; --muted: #9aa0a8; --line: #2e3238;
    --accent: #7ea2ff; --accent-soft: #1f2a44; --good: #5fd09a; --good-soft: #17322a; --warn-soft: #33290f;
    --bar-rel: #7ea2ff; --bar-due: #e0a54a; --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #15171a; --surface: #1d2024; --ink: #e8e6e3; --muted: #9aa0a8; --line: #2e3238;
  --accent: #7ea2ff; --accent-soft: #1f2a44; --good: #5fd09a; --good-soft: #17322a; --warn-soft: #33290f;
  --bar-rel: #7ea2ff; --bar-due: #e0a54a; --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.55 Inter, system-ui, sans-serif; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
a { color: var(--accent); }
code { font-size: .88em; background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.hero { padding: 48px 0 24px; border-bottom: 1px solid var(--line); }
.eyebrow { font-size: 12px; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
h1 { font: 600 44px/1.1 "Source Serif 4", Georgia, serif; margin: 0 0 12px; }
.lede { font-size: 18px; max-width: 760px; margin: 0 0 8px; }
.ideas { font-size: 16px; max-width: 760px; padding-left: 22px; margin: 8px 0 12px; }
.byline { color: var(--muted); margin: 0; }

.tabs { display: flex; gap: 4px; margin-top: 20px; flex-wrap: wrap; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 10px 14px; font: 500 15px Inter, sans-serif; color: var(--muted); cursor: pointer; }
.tabs button[aria-selected="true"] { color: var(--ink); border-color: var(--accent); }

main { padding: 20px 16px 40px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 860px) { .grid2 { grid-template-columns: 1fr; } h1 { font-size: 34px; } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px; box-shadow: var(--shadow); min-width: 0; }
.card.accent { border-color: var(--accent); }
.card h2 { font-size: 18px; margin: 0 0 6px; }
.card h3 { font-size: 15px; margin: 0; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 10px; }
.compare { margin-top: 16px; }

.row, .actions, .chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.btn { display: inline-flex; align-items: center; border: 1px solid var(--line); background: var(--surface); color: var(--ink); padding: 8px 12px; border-radius: 8px; font: 500 14px Inter, sans-serif; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .5; cursor: wait; }

textarea, input[type=text], input[type=password] { width: 100%; border: 1px solid var(--line); background: var(--bg); color: var(--ink); border-radius: 8px; padding: 10px; font: 14px/1.5 Inter, sans-serif; }
textarea { resize: vertical; font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
fieldset.mode { border: 1px solid var(--line); border-radius: 8px; margin: 12px 0; padding: 8px 12px; }
fieldset.mode label { display: block; margin: 4px 0; }
#llm-opts { display: grid; gap: 6px; margin-top: 6px; }
#llm-opts[hidden] { display: none; }

.pill { font-size: 12px; background: var(--accent-soft); color: var(--accent); padding: 2px 10px; border-radius: 999px; white-space: nowrap; }
.pill.good { background: var(--good-soft); color: var(--good); }
.chip { border: 1px solid var(--line); background: var(--bg); color: var(--ink); border-radius: 999px; padding: 5px 12px; font: 13px Inter, sans-serif; cursor: pointer; }
.chip:hover { border-color: var(--accent); }

.stack { display: grid; gap: 10px; }
.empty-state { color: var(--muted); padding: 24px; text-align: center; border: 1px dashed var(--line); border-radius: 10px; }
.hl { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; background: var(--bg); }
.hl.off { opacity: .45; }
.hl .quote { font: 17px/1.5 "Source Serif 4", Georgia, serif; margin: 0 0 6px; }
.hl .src { font-size: 13px; color: var(--muted); }
.hl .note { font-size: 13px; background: var(--warn-soft); border-radius: 6px; padding: 4px 8px; margin-top: 6px; }
.hl .meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 8px; }
.hl .reason { font-size: 11px; border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; color: var(--muted); }
.hl label.keep { margin-left: auto; font-size: 13px; }
.bars { display: grid; grid-template-columns: 74px 1fr 34px; gap: 4px 8px; align-items: center; font-size: 12px; color: var(--muted); margin-top: 8px; }
.bar { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; }
.bar > span { display: block; height: 100%; }
.bar.rel > span { background: var(--bar-rel); }
.bar.due > span { background: var(--bar-due); }
.why { font-size: 12px; color: var(--muted); margin-top: 6px; }
.ontopic { font-size: 11px; color: var(--good); font-weight: 600; }

.sliders { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 8px; font-size: 13px; }
.sliders label { display: flex; align-items: center; gap: 8px; }
details.send { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; }
details.send summary { cursor: pointer; font-weight: 500; }
details.send input { margin: 8px 0; }
.prose { max-width: 820px; }
.prose h3 { margin-top: 18px; }
footer { padding: 24px 16px 48px; border-top: 1px solid var(--line); }
.ok { color: var(--good); } .err { color: #c0392b; }