:root {
  --bg: #f6f5f2;
  --card: #ffffff;
  --ink: #1b1c1f;
  --muted: #6b6e76;
  --line: #e6e4df;
  --soft: #efeee9;
  --accent: #4f7cff;
  --good: #2f9e62;
  --bad: #e5533d;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 4px 16px rgba(0,0,0,.04);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #181b21;
    --ink: #eceef2;
    --muted: #9198a5;
    --line: #262a32;
    --soft: #20242b;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  font: 16px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-tap-highlight-color: transparent;
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}
.view { max-width: 720px; margin: 0 auto; padding: calc(16px + env(safe-area-inset-top)) 16px 24px; }

h1 { font-size: 28px; letter-spacing: -.02em; margin: 4px 0 2px; }
h2 { font-size: 18px; margin: 0; }
h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 28px 0 10px; font-weight: 600; }
.sub { color: var(--muted); margin: 0 0 18px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* Cards */
.grid { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 560px) { .grid { grid-template-columns: 1fr 1fr; } }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow); position: relative;
}
.card.wide { grid-column: 1 / -1; }
.card-head { display: flex; align-items: center; gap: 10px; }
.card-head .emoji { font-size: 22px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 12px; background: color-mix(in srgb, var(--c, var(--accent)) 14%, transparent); }
.card-head .title { font-weight: 600; flex: 1; }
.card-head .meta { color: var(--muted); font-size: 13px; }

.big { font-size: 40px; font-weight: 700; letter-spacing: -.03em; line-height: 1; margin: 14px 0 4px; }
.big small { font-size: 16px; font-weight: 500; color: var(--muted); letter-spacing: 0; }

.bar { height: 8px; border-radius: 99px; background: var(--soft); overflow: hidden; margin: 12px 0 4px; }
.bar > i { display: block; height: 100%; background: var(--c, var(--accent)); border-radius: 99px; transition: width .3s; }

.week { display: flex; gap: 6px; margin-top: 12px; }
.week span { flex: 1; text-align: center; font-size: 11px; color: var(--muted); }
.week b { display: block; height: 8px; border-radius: 4px; background: var(--soft); margin-bottom: 4px; }
.week b.on { background: var(--c, var(--accent)); }
.week b.part { background: color-mix(in srgb, var(--c, var(--accent)) 40%, transparent); }
.week b.slip { background: var(--bad); }
.week b.clean { background: color-mix(in srgb, var(--good) 45%, var(--soft)); }
.week .today { color: var(--ink); font-weight: 700; }

/* Buttons */
.btn {
  appearance: none; border: 1px solid var(--line); background: var(--card); color: var(--ink);
  border-radius: 12px; padding: 10px 14px; font: inherit; font-weight: 600; cursor: pointer;
}
.btn:active { transform: scale(.98); }
.btn.primary { background: var(--c, var(--accent)); border-color: transparent; color: #fff; }
.btn.danger { background: var(--bad); border-color: transparent; color: #fff; }
.btn.good { background: var(--good); border-color: transparent; color: #fff; }
.btn.ghost { background: transparent; }
.btn.block { width: 100%; }
.btn.sm { padding: 6px 10px; font-size: 14px; border-radius: 10px; }
.row { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.row > .btn { flex: 1; }
.icon-btn { appearance: none; border: 0; background: transparent; color: var(--muted); font-size: 18px; cursor: pointer; padding: 4px 8px; }

.check-tile {
  width: 100%; margin-top: 14px; padding: 18px; border-radius: 14px; border: 2px dashed var(--line);
  background: transparent; color: var(--muted); font: inherit; font-weight: 600; cursor: pointer;
}
.check-tile.done { border: 2px solid transparent; background: var(--c, var(--accent)); color: #fff; }

/* Chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 14px; }
.chip {
  appearance: none; border: 1px solid var(--line); background: var(--soft); color: var(--ink);
  border-radius: 99px; padding: 8px 14px; font: inherit; font-size: 14px; cursor: pointer;
}
.chip.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* Forms */
label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin: 12px 0 6px; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--soft);
  border: 1px solid var(--line); border-radius: 12px; padding: 12px;
}
textarea { min-height: 70px; resize: vertical; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* Dialog */
dialog {
  border: 0; padding: 0; border-radius: 22px; width: min(480px, calc(100vw - 24px));
  background: var(--card); color: var(--ink); box-shadow: 0 20px 60px rgba(0,0,0,.25);
}
dialog::backdrop { background: rgba(0,0,0,.4); }
dialog form { padding: 18px; }
dialog header { display: flex; align-items: center; justify-content: space-between; }
dialog footer { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }
@media (max-width: 560px) {
  dialog { margin: auto 0 0; width: 100vw; max-width: 100vw; border-radius: 22px 22px 0 0; padding-bottom: env(safe-area-inset-bottom); }
}

/* Tabs */
.tabs {
  position: fixed; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-around;
  background: color-mix(in srgb, var(--card) 88%, transparent); backdrop-filter: blur(12px);
  border-top: 1px solid var(--line); padding: 8px 0 calc(8px + env(safe-area-inset-bottom)); z-index: 5;
}
.tabs a { color: var(--muted); text-decoration: none; display: flex; flex-direction: column; align-items: center; font-size: 11px; gap: 2px; min-width: 64px; }
.tabs a .ti { font-size: 20px; }
.tabs a.active { color: var(--ink); font-weight: 600; }

/* Heatmap */
.heat { display: grid; grid-template-rows: repeat(7, 1fr); grid-auto-flow: column; grid-auto-columns: 1fr; gap: 3px; margin-top: 12px; }
.heat i { aspect-ratio: 1; border-radius: 3px; background: var(--soft); }
.heat i.l1 { background: color-mix(in srgb, var(--c) 30%, var(--soft)); }
.heat i.l2 { background: color-mix(in srgb, var(--c) 55%, var(--soft)); }
.heat i.l3 { background: color-mix(in srgb, var(--c) 78%, var(--soft)); }
.heat i.l4 { background: var(--c); }
.heat i.clean { background: color-mix(in srgb, var(--good) 35%, var(--soft)); }
.heat i.s1 { background: color-mix(in srgb, var(--bad) 55%, var(--soft)); }
.heat i.s2 { background: var(--bad); }
.heat i.future { background: transparent; }
.heat i.today { outline: 2px solid var(--ink); outline-offset: -1px; }

.hbars { margin-top: 10px; }
.hbar { display: grid; grid-template-columns: 110px 1fr 32px; gap: 8px; align-items: center; font-size: 14px; margin: 6px 0; }
.hbar .t { height: 10px; background: var(--soft); border-radius: 99px; overflow: hidden; }
.hbar .t i { display: block; height: 100%; background: var(--c, var(--accent)); border-radius: 99px; }
.hbar .n { text-align: right; color: var(--muted); }

.stats-row { display: flex; gap: 10px; margin-top: 12px; }
.stat { flex: 1; background: var(--soft); border-radius: 12px; padding: 10px 12px; }
.stat b { display: block; font-size: 22px; letter-spacing: -.02em; }
.stat span { font-size: 12px; color: var(--muted); }

/* Lists */
.list { list-style: none; padding: 0; margin: 0; }
.list li { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.list li:last-child { border-bottom: 0; }
.list .grow { flex: 1; min-width: 0; }
.list .grow b { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.archived { opacity: .5; }
.stars { color: #f2b01e; letter-spacing: 1px; }
.stars-input { display: flex; gap: 6px; font-size: 30px; }
.stars-input button { appearance: none; border: 0; background: transparent; color: var(--line); cursor: pointer; padding: 0; font-size: 30px; }
.stars-input button.on { color: #f2b01e; }

.empty { text-align: center; color: var(--muted); padding: 24px 8px; }

/* Toast & banner */
.toast {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(90px + env(safe-area-inset-bottom));
  background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: 12px; display: flex; gap: 14px;
  align-items: center; z-index: 20; font-size: 14px; box-shadow: 0 8px 30px rgba(0,0,0,.2);
}
.toast button { appearance: none; border: 0; background: transparent; color: inherit; font: inherit; font-weight: 700; text-decoration: underline; cursor: pointer; }
.banner { background: #f9eeda; color: #6b4b00; padding: 10px 16px; font-size: 14px; text-align: center; }
.banner button { margin-left: 8px; }

/* Book covers */
.cover {
  position: relative; flex: none; aspect-ratio: 2 / 3; border-radius: 6px; overflow: hidden;
  background: linear-gradient(160deg, hsl(var(--h) 45% 46%), hsl(calc(var(--h) + 40) 45% 30%));
  box-shadow: 0 1px 3px rgba(0,0,0,.18); display: flex; align-items: flex-end;
}
.cover span { color: #fff; font-weight: 700; line-height: 1.15; padding: 6px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; }
.cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; background: var(--soft); }
.cover.xs { width: 22px; border-radius: 3px; } .cover.xs span { display: none; }
.cover.s { width: 40px; border-radius: 4px; } .cover.s span { font-size: 6px; padding: 3px; }
.cover.m { width: 100%; max-width: 92px; } .cover.m span { font-size: 10px; }
.cover.l { width: 96px; } .cover.l span { font-size: 11px; }

.cover-btn, .link-title, .shelf-book, .reading-line, .result {
  appearance: none; border: 0; background: transparent; padding: 0; color: inherit; font: inherit; text-align: left; cursor: pointer;
}
.book-card { display: flex; gap: 14px; align-items: flex-start; }
.book-card .cover-btn { width: 84px; }
.book-main { flex: 1; min-width: 0; }
.book-main .row { margin-top: 10px; }
.reading-line { display: flex; gap: 8px; align-items: center; margin-top: 2px; }

.year-label { font-size: 13px; font-weight: 600; color: var(--muted); margin: 16px 0 8px; }
.shelf { display: grid; grid-template-columns: repeat(auto-fill, minmax(78px, 1fr)); gap: 12px 10px; }
.shelf-book { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.shelf-book .cover { max-width: none; }
.shelf-stars { font-size: 10px; min-height: 12px; }

.results { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; max-height: 260px; overflow-y: auto; }
.result { display: flex; gap: 10px; align-items: center; padding: 6px; border-radius: 10px; border: 1px solid transparent; }
.result > span { display: flex; flex-direction: column; min-width: 0; }
.result.picked { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }

.book-detail { display: flex; gap: 14px; align-items: flex-start; margin-top: 6px; }
.links { display: flex; gap: 14px; margin-top: 8px; font-size: 14px; }
.links a { color: var(--accent); text-decoration: none; font-weight: 600; }
.rematch { margin-top: 14px; font-size: 14px; }
.rematch summary { cursor: pointer; color: var(--muted); }
.danger-text { color: var(--bad); }

.file-btn { display: block; text-align: center; margin: 0; color: var(--ink); font-size: 16px; }
.push-status { margin-top: 14px; }
.ok-dot { color: var(--good); }

/* Bingo */
.year-nav { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.year-nav h1 { margin: 4px 0 2px; }
.year-nav .icon-btn { font-size: 28px; color: var(--ink); }
.year-nav .icon-btn:disabled { opacity: .2; }
.bingo { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; margin-bottom: 12px; }
.sq {
  position: relative; aspect-ratio: 1; border-radius: 10px; border: 1px solid var(--line); background: var(--card);
  color: var(--ink); font: inherit; padding: 4px; cursor: pointer; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center; overflow: hidden;
}
.sq-text { font-size: 10px; line-height: 1.15; font-weight: 600; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; hyphens: auto; -webkit-hyphens: auto; overflow-wrap: anywhere; }
.sq.has-prog { padding-top: 14px; padding-bottom: 12px; }
.sq.has-prog .sq-text { -webkit-line-clamp: 3; }
@media (min-width: 560px) { .sq-text { font-size: 13px; } .bingo { gap: 8px; } }
.sq.done { background: color-mix(in srgb, var(--good) 22%, var(--card)); border-color: color-mix(in srgb, var(--good) 45%, var(--card)); }
.sq.line { background: #f2b01e; border-color: #e0a10f; color: #3a2a00; }
.sq.free { background: var(--soft); color: var(--muted); }
.sq.free.line { background: #f2b01e; color: #3a2a00; }
.sq-tick { position: absolute; top: 3px; right: 5px; font-size: 11px; font-weight: 800; color: var(--good); }
.sq.line .sq-tick { color: #3a2a00; }
.sq-prog { position: absolute; left: 6px; right: 6px; bottom: 6px; height: 4px; border-radius: 9px; background: var(--soft); overflow: hidden; }
.sq-prog i { display: block; height: 100%; background: var(--accent); }
.sq-num { position: absolute; top: 3px; right: 5px; font-size: 9px; color: var(--muted); }
.bingo-mini { display: flex; gap: 14px; align-items: center; margin-top: 12px; text-decoration: none; color: inherit; }
.mini-grid { display: grid; grid-template-columns: repeat(5, 9px); gap: 2px; }
.mini-grid i { width: 9px; height: 9px; border-radius: 2px; background: var(--soft); }
.mini-grid i.done { background: color-mix(in srgb, var(--good) 55%, var(--soft)); }
.mini-grid i.line { background: #f2b01e; }
.stepper { display: flex; gap: 6px; align-items: center; }
.stepper input { text-align: center; }
.check-row { display: flex; gap: 10px; align-items: center; color: var(--ink); font-weight: 500; font-size: 15px; }
.check-row input { width: auto; }
.tabs a { min-width: 56px; }