/* ---------- Theme ---------- */
:root {
  --bg: #0f1318; --bg2: #161c24; --bg3: #1f2731; --bg4: #29333f;
  --border: rgba(255,255,255,0.08); --border2: rgba(255,255,255,0.16);
  --text: #e6ebf2; --muted: #8a9bb0; --muted2: #5b6b7f;
  --accent: #c8974a; --accent-dim: rgba(200,151,74,0.16);
  --sky: #4fc3f7; --green: #48bb78; --green-dim: rgba(72,187,120,0.14);
  --red: #fc8181; --red-dim: rgba(252,129,129,0.14); --amber: #f6ad55; --amber-dim: rgba(246,173,85,0.14);
  --purple: #b794f4;
  --zh: 'Noto Sans HK', 'PingFang HK', 'Microsoft JhengHei', 'Microsoft YaHei', sans-serif;
  --sans: 'DM Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 12px; --shadow: 0 8px 30px rgba(0,0,0,0.35);
  color-scheme: dark;
}
html[data-theme="light"] {
  --bg: #f6f4ef; --bg2: #ffffff; --bg3: #f0ece4; --bg4: #e6e0d4;
  --border: rgba(0,0,0,0.08); --border2: rgba(0,0,0,0.16);
  --text: #1c2129; --muted: #5b6b7f; --muted2: #8a9bb0;
  --accent: #a3742c; --accent-dim: rgba(163,116,44,0.14);
  --sky: #0288d1; --green: #2f855a; --green-dim: rgba(47,133,90,0.12);
  --red: #c53030; --red-dim: rgba(197,48,48,0.12); --amber: #c05621; --amber-dim: rgba(192,86,33,0.12);
  --purple: #6b46c1; --shadow: 0 8px 30px rgba(0,0,0,0.12);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body { background: var(--bg); color: var(--text); font-family: var(--sans); min-height: 100vh; line-height: 1.45; }
a { color: var(--sky); text-decoration: none; }
button { font: inherit; color: inherit; }
textarea, input, select { font: inherit; color: inherit; }
.zh { font-family: var(--zh); }
.jp { font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }
.tone { color: var(--muted); font-size: 0.8em; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.right { text-align: right; }
.center { text-align: center; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grow { flex: 1; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.mt { margin-top: 14px; } .mb { margin-bottom: 14px; }

/* ---------- Layout ---------- */
#app { display: flex; flex-direction: column; min-height: 100vh; }
.topbar { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 18px; padding: 10px 18px; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: baseline; gap: 8px; color: var(--text); }
.brand-zh { font-family: var(--zh); font-size: 1.4rem; color: var(--accent); }
.brand-name { font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.85rem; }
.topnav { display: flex; gap: 4px; }
.topnav a { color: var(--muted); padding: 6px 10px; border-radius: 8px; font-size: 0.92rem; }
.topnav a:hover { color: var(--text); background: var(--bg3); }
.topnav a.active { color: var(--accent); background: var(--accent-dim); }
.topbar-right { margin-left: auto; }
.view { flex: 1; width: 100%; max-width: 980px; margin: 0 auto; padding: 18px 18px 90px; }
.bottomnav { display: none; }
.gear { display: none; }
@media (max-width: 760px) {
  .topnav { display: none; }
  /* the bottom bar has no room for Settings, so it sits in the top bar on phones */
  .gear { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; margin-left: 4px; border-radius: 8px; font-size: 1.2rem; color: var(--muted); }
  .gear.active { color: var(--accent); background: var(--accent-dim); }
  /* clear the bottom bar, which grows by the safe-area inset */
  .view { padding: 14px 14px calc(84px + env(safe-area-inset-bottom)); }
  html { scroll-padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
  .bottomnav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 50; background: color-mix(in srgb, var(--bg2) 94%, transparent); backdrop-filter: blur(10px); border-top: 1px solid var(--border); padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); }
  .bottomnav a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 0.68rem; color: var(--muted); padding: 4px 0; border-radius: 8px; }
  .bottomnav a .ico { font-size: 1.15rem; line-height: 1; }
  .bottomnav a.active { color: var(--accent); }
}

/* ---------- Components ---------- */
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.card + .card { margin-top: 12px; }
.card.clickable { cursor: pointer; transition: border-color 0.15s, transform 0.1s; }
.card.clickable:hover { border-color: var(--border2); }
.card.clickable:active { transform: scale(0.995); }
h1 { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 6px; }
h2 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; }
h3 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.eyebrow { font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.pagehead { margin-bottom: 16px; }
.pagehead .sub { color: var(--muted); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 14px; border-radius: 10px; border: 1px solid var(--border2); background: var(--bg3); cursor: pointer; font-size: 0.93rem; transition: background 0.15s, border-color 0.15s; white-space: nowrap; }
.btn:hover { background: var(--bg4); }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #14100a; font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.sm { padding: 5px 10px; font-size: 0.82rem; border-radius: 8px; }
.btn.block { width: 100%; }
.btn.danger { border-color: var(--red); color: var(--red); }
.btngroup { display: flex; gap: 8px; flex-wrap: wrap; }
.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.74rem; background: var(--bg3); color: var(--muted); border: 1px solid var(--border); white-space: nowrap; }
.pill-due { background: var(--accent-dim); color: var(--accent); border-color: transparent; }
.pill-green { background: var(--green-dim); color: var(--green); border-color: transparent; }
.pill-red { background: var(--red-dim); color: var(--red); border-color: transparent; }
.pill-amber { background: var(--amber-dim); color: var(--amber); border-color: transparent; }
.pill-purple { background: color-mix(in srgb, var(--purple) 18%, transparent); color: var(--purple); border-color: transparent; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border2); background: var(--bg2); cursor: pointer; font-size: 0.84rem; color: var(--muted); user-select: none; }
.chip.on { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.chip.small { padding: 3px 9px; font-size: 0.76rem; }
.progress { height: 6px; background: var(--bg3); border-radius: 999px; overflow: hidden; }
.progress > i { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width 0.3s; }
.progress > i.green { background: var(--green); }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.grid2 { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
@media (max-width: 600px) { .grid2 { grid-template-columns: 1fr; } }
.stat { text-align: center; padding: 12px 8px; }
.stat b { display: block; font-size: 1.6rem; font-weight: 600; line-height: 1.1; }
.stat span { font-size: 0.75rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.list { display: flex; flex-direction: column; gap: 8px; }
.item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; cursor: pointer; }
.item:hover { border-color: var(--border2); }
.item .t { flex: 1; min-width: 0; }
.item .t b { display: block; font-weight: 500; }
.item .t small { color: var(--muted); }
.item .arrow { color: var(--muted2); }
input[type=text], input[type=search], input[type=number], textarea, select { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border2); background: var(--bg2); outline: none; }
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { min-height: 70px; resize: vertical; }
label.field { display: block; margin-bottom: 10px; }
label.field > span { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 4px; }
.toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 0.9rem; }
.toggle input { width: 16px; height: 16px; accent-color: var(--accent); }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 14px; overflow-x: auto; }
.tabs a { padding: 8px 12px; color: var(--muted); border-bottom: 2px solid transparent; white-space: nowrap; font-size: 0.92rem; }
.tabs a.active { color: var(--accent); border-bottom-color: var(--accent); }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 9px 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.table th { font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.table tr.clickable { cursor: pointer; }
.table tr.clickable:hover td { background: var(--bg3); }
.loading { color: var(--muted); padding: 40px; text-align: center; }
.empty { color: var(--muted); padding: 24px; text-align: center; border: 1px dashed var(--border2); border-radius: var(--radius); }
.divider { height: 1px; background: var(--border); margin: 14px 0; }
.kbd { font-family: ui-monospace, monospace; font-size: 0.75rem; padding: 1px 6px; border: 1px solid var(--border2); border-radius: 5px; color: var(--muted); }
.star { cursor: pointer; color: var(--muted2); font-size: 1.1rem; }
.star.on { color: var(--accent); }
.tag { font-size: 0.72rem; color: var(--purple); }

/* ---------- Word lookup ---------- */
.w { cursor: pointer; border-bottom: 1px dotted color-mix(in srgb, var(--sky) 60%, transparent); border-radius: 2px; }
.w:hover, .w:active { background: color-mix(in srgb, var(--sky) 18%, transparent); }
.w.known { border-bottom-color: color-mix(in srgb, var(--green) 60%, transparent); }
.w.starred { background: var(--accent-dim); }
.wline { line-height: 1.7; }

/* ---------- Sheet / modal ---------- */
.sheet-back { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 100; display: flex; align-items: flex-end; justify-content: center; animation: fade 0.15s; }
.sheet { width: 100%; max-width: 560px; max-height: 88vh; overflow: auto; background: var(--bg2); border: 1px solid var(--border2); border-radius: 18px 18px 0 0; padding: 18px 18px calc(18px + env(safe-area-inset-bottom)); box-shadow: var(--shadow); animation: up 0.18s; }
@media (min-width: 761px) { .sheet-back { align-items: center; } .sheet { border-radius: 18px; } }
@keyframes fade { from { opacity: 0; } }
@keyframes up { from { transform: translateY(20px); opacity: 0; } }
.sheet .handle { width: 40px; height: 4px; background: var(--border2); border-radius: 2px; margin: -6px auto 12px; }
.def { padding: 10px 0; border-bottom: 1px solid var(--border); }
.def:last-child { border-bottom: none; }
.def .zh { font-size: 1.5rem; }
.def .jp { color: var(--accent); }
.def .en { margin-top: 2px; }
#toast-root { position: fixed; bottom: 86px; left: 0; right: 0; display: flex; flex-direction: column; align-items: center; gap: 6px; z-index: 200; pointer-events: none; }
.toast { background: var(--bg4); border: 1px solid var(--border2); color: var(--text); padding: 8px 14px; border-radius: 999px; font-size: 0.86rem; box-shadow: var(--shadow); animation: fade 0.15s; }

/* ---------- Flashcards ---------- */
.fc-wrap { max-width: 620px; margin: 0 auto; }
.fc-top { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 0.85rem; color: var(--muted); }
.fc-top .progress { flex: 1; }
.fc { position: relative; min-height: 300px; background: var(--bg2); border: 1px solid var(--border2); border-radius: 20px; padding: 28px 22px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; cursor: pointer; box-shadow: var(--shadow); user-select: none; }
.fc .kind { position: absolute; top: 12px; left: 16px; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.fc .unitref { position: absolute; top: 12px; right: 16px; font-size: 0.7rem; color: var(--muted2); }
.fc .star { position: absolute; bottom: 12px; right: 16px; }
.fc .zh { font-size: 2.6rem; line-height: 1.2; }
.fc .zh.long { font-size: 1.7rem; }
.fc .jp { font-size: 1.25rem; color: var(--accent); margin-top: 6px; }
.fc .en { font-size: 1.35rem; }
.fc .en.long { font-size: 1.05rem; }
.fc .hint { position: absolute; bottom: 12px; left: 0; right: 0; font-size: 0.75rem; color: var(--muted2); }
.fc .back { margin-top: 18px; padding-top: 18px; border-top: 1px dashed var(--border2); width: 100%; }
.fc .lit { color: var(--muted); font-size: 0.9rem; margin-top: 4px; font-style: italic; }
.fc .notes { color: var(--muted); font-size: 0.85rem; margin-top: 8px; }
.fc-grades { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 14px; }
.fc-grades button { padding: 12px 6px; border-radius: 12px; border: 1px solid var(--border2); background: var(--bg2); cursor: pointer; display: flex; flex-direction: column; gap: 2px; align-items: center; }
.fc-grades button small { color: var(--muted); font-size: 0.72rem; }
.fc-grades .g0 { border-color: var(--red); } .fc-grades .g0:hover { background: var(--red-dim); }
.fc-grades .g1 { border-color: var(--amber); } .fc-grades .g1:hover { background: var(--amber-dim); }
.fc-grades .g2 { border-color: var(--green); } .fc-grades .g2:hover { background: var(--green-dim); }
.fc-grades .g3 { border-color: var(--sky); } .fc-grades .g3:hover { background: color-mix(in srgb, var(--sky) 15%, transparent); }
.fc-flip { margin-top: 14px; }
.setup-section { margin-bottom: 16px; }
.setup-section h3 { margin-bottom: 8px; }

/* ---------- Dialogue ---------- */
.dlg-controls { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.line { display: grid; grid-template-columns: 72px 1fr; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.line .spk { font-size: 0.8rem; color: var(--muted); padding-top: 4px; font-weight: 500; }
.line .lzh { font-size: 1.25rem; line-height: 1.6; }
.line .ljp { color: var(--accent); }
.line .len { color: var(--muted); }
.line .hidden-text { color: transparent; background: var(--bg3); border-radius: 6px; cursor: pointer; user-select: none; }
.line .hidden-text * { color: transparent !important; }
.line.mine { background: color-mix(in srgb, var(--accent) 6%, transparent); border-radius: 8px; padding-left: 8px; padding-right: 8px; }
.line .reveal { font-size: 0.75rem; color: var(--muted2); }

/* ---------- Grammar ---------- */
.gbody li { margin: 4px 0 4px 18px; }
.ex { padding: 8px 0; border-bottom: 1px solid var(--border); }
.ex .ejp { color: var(--accent); }
.ex .ezh { font-size: 1.05rem; }
.ex .een { color: var(--text); }
.ex .elit { color: var(--muted); font-size: 0.85rem; font-style: italic; }

/* ---------- Exercises ---------- */
.xitem { padding: 12px 0; border-bottom: 1px solid var(--border); }
.xitem .prompt { font-size: 1.05rem; margin-bottom: 8px; }
.xitem .answer { margin-top: 8px; padding: 10px 12px; background: var(--bg3); border-radius: 8px; }
.xitem.done .prompt::before { content: '✓ '; color: var(--green); }
.conf-high { color: var(--green); } .conf-medium { color: var(--amber); } .conf-low { color: var(--red); } .conf-none { color: var(--muted); }

/* ---------- Home ---------- */
.hero { background: linear-gradient(135deg, var(--bg2), color-mix(in srgb, var(--accent) 10%, var(--bg2))); border: 1px solid var(--border2); border-radius: 18px; padding: 22px; }
.hero h1 { font-size: 1.7rem; }
.quick { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); margin-top: 14px; }
.quick a { display: block; padding: 12px; border-radius: 12px; background: var(--bg2); border: 1px solid var(--border); color: var(--text); }
.quick a b { display: block; font-weight: 500; }
.quick a small { color: var(--muted); }
.unitrow { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.unitrow .n { width: 34px; height: 34px; border-radius: 10px; background: var(--bg3); display: flex; align-items: center; justify-content: center; font-weight: 600; color: var(--accent); }
.unitrow .t { flex: 1; min-width: 0; }
.unitrow .progress { width: 110px; }

/* ---------- Particle cards: course examples on the back ---------- */
.fc .exs { width: 100%; text-align: left; margin-top: 12px; font-size: 0.9rem; }
.fc .exs .ex { padding: 6px 0; border-bottom: 1px solid var(--border); }
.fc .exs .ex:last-child { border-bottom: none; }
.fc .exs .ejp { color: var(--accent); font-size: 1rem; margin-top: 0; }
.fc .exs .ezh { font-size: 1rem; line-height: 1.4; }
.fc .exs .een { color: var(--muted); }

/* ---------- Quiz ---------- */
.fc.quiz { cursor: default; min-height: 220px; }
.fc .qzh { font-family: var(--zh); font-size: 2.6rem; line-height: 1.2; }
.fc .qjp { font-size: 1.25rem; color: var(--accent); margin-top: 6px; }
.fc .qen { font-size: 1.4rem; }
.fc .qsent { font-size: 1.2rem; color: var(--accent); line-height: 1.5; }
.fc .qsentzh { font-size: 1.3rem; margin-top: 4px; }
.qopts { display: grid; gap: 8px; margin-top: 14px; }
.qopt { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border2); background: var(--bg2); cursor: pointer; font-size: 1.02rem; }
.qopt:hover:not(:disabled) { border-color: var(--accent); }
.qopt:disabled { cursor: default; opacity: 0.75; }
.qopt.ok { border-color: var(--green); background: var(--green-dim); opacity: 1; }
.qopt.bad { border-color: var(--red); background: var(--red-dim); opacity: 1; }
.qopt .qn { font-size: 0.75rem; color: var(--muted2); border: 1px solid var(--border2); border-radius: 6px; padding: 0 6px; }
.qanswer { margin-top: 8px; }
.qanswer .zh { font-size: 1.3rem; }
input.qtype { font-size: 1.05rem; }

/* ---------- Game (Journey) ---------- */
:root { --xp: linear-gradient(90deg, #c8974a, #e0b93b 60%, #f6d67a); }
.pill-lvl { background: var(--accent-dim); color: var(--accent); border-color: transparent; font-weight: 600; margin-right: 6px; cursor: pointer; }
.topbar-right { display: flex; align-items: center; }
.section-title { display: flex; justify-content: space-between; align-items: baseline; margin: 22px 0 10px; gap: 10px; }
.section-title h2 { margin: 0; }
.charsheet { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center; }
.lvl-badge { width: 84px; height: 96px; clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%); background: var(--xp); display: flex; flex-direction: column; align-items: center; justify-content: center; color: #1a1408; position: relative; flex: none; }
.lvl-badge small { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; opacity: 0.8; }
.lvl-badge b { font-size: 2.3rem; line-height: 0.95; font-weight: 700; }
.lvl-badge.sm { width: 44px; height: 50px; }
.lvl-badge.sm b { font-size: 1.2rem; }
.lvl-badge.sm small { font-size: 0.5rem; }
.xpbar { height: 12px; border-radius: 99px; background: var(--bg3); overflow: hidden; margin-top: 4px; }
.xpbar i { display: block; height: 100%; background: var(--xp); border-radius: 99px; transition: width 0.8s ease; }
.lvlstrip { display: flex; align-items: center; gap: 12px; color: inherit; padding: 10px 12px; border-radius: 14px; background: color-mix(in srgb, var(--bg) 40%, transparent); border: 1px solid var(--border); }
.streakbox { text-align: center; min-width: 58px; }
.streakbox b { display: block; font-size: 1.05rem; }
.streakbox small { font-size: 0.68rem; color: var(--muted); }
.xp-gain { font-size: 1.4rem; font-weight: 700; background: var(--xp); -webkit-background-clip: text; background-clip: text; color: transparent; margin: 2px 0 8px; }
.qrow { display: grid; grid-template-columns: 28px 1fr auto; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); }
.qrow:last-child { border-bottom: none; }
.qrow .qi { font-size: 1.15rem; text-align: center; }
.qrow .t .progress { margin-top: 5px; height: 5px; }
.qrow .qv { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.qrow .px { font-size: 0.7rem; color: var(--accent); font-weight: 600; }
.qrow.met .t > div:first-child { color: var(--muted); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--green) 60%, transparent); }
.qrow .tick { color: var(--green); font-weight: 700; }
details.quest summary { list-style: none; display: grid; grid-template-columns: 32px 1fr; gap: 10px; align-items: center; cursor: pointer; }
details.quest summary::-webkit-details-marker { display: none; }
details.quest .qi { font-size: 1.4rem; text-align: center; }
details.quest .steps { margin-top: 10px; }
details.quest.complete { border-color: color-mix(in srgb, var(--green) 45%, transparent); }
.statrow { display: grid; grid-template-columns: 30px minmax(110px, 1fr) 1fr 48px; gap: 10px; align-items: center; padding: 7px 0; }
.statrow .ic { font-size: 1.2rem; text-align: center; }
.statrow .nm { font-weight: 600; font-size: 0.9rem; }
.statrow .nm small { display: block; color: var(--muted); font-weight: 400; font-size: 0.72rem; }
.statrow .lv { font-weight: 700; text-align: right; }
.achs { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; }
.ach { text-align: center; padding: 12px 6px 10px; border-radius: 14px; background: var(--bg2); border: 1px solid var(--border); cursor: pointer; }
.ach .ai { font-size: 1.9rem; line-height: 1.1; }
.ach b { display: block; font-size: 0.76rem; margin-top: 5px; line-height: 1.2; font-weight: 600; }
.ach .progress { height: 4px; margin: 6px 8px 0; }
.ach.locked .ai { filter: grayscale(1) opacity(0.35); }
.ach.locked b { color: var(--muted); }
.ach.got { border-color: color-mix(in srgb, var(--accent) 45%, transparent); background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, var(--bg2)), var(--bg2)); }
.heat { display: grid; grid-auto-flow: column; grid-template-rows: repeat(7, 13px); grid-auto-columns: 13px; justify-content: start; gap: 3px; overflow-x: auto; padding-bottom: 4px; }
.heat i { width: 13px; height: 13px; border-radius: 3px; background: var(--bg3); display: block; }
.heat i.l1 { background: color-mix(in srgb, var(--accent) 30%, var(--bg3)); }
.heat i.l2 { background: color-mix(in srgb, var(--accent) 55%, var(--bg3)); }
.heat i.l3 { background: color-mix(in srgb, var(--accent) 80%, var(--bg3)); }
.heat i.l4 { background: #e0b93b; }
.heat i.fr { background: color-mix(in srgb, var(--sky) 45%, var(--bg3)); }
.heat i.fut { opacity: 0.25; }
.heat i.today { outline: 1.5px solid var(--text); outline-offset: 1px; }
.totals { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }
.tt { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
.tt b { display: block; font-size: 1.3rem; }
.tt span { font-size: 0.78rem; color: var(--muted); }
.tiny { font-size: 0.74rem; }
.celeb-back { position: fixed; inset: 0; z-index: 400; background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--accent) 22%, rgba(0,0,0,0.6)), rgba(0,0,0,0.78)); display: flex; align-items: center; justify-content: center; padding: 24px; animation: fade 0.2s; }
.celeb { background: var(--bg2); border: 1px solid color-mix(in srgb, var(--accent) 50%, transparent); border-radius: 24px; padding: 28px 24px 22px; max-width: 360px; width: 100%; text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 60px color-mix(in srgb, var(--accent) 25%, transparent); animation: pop 0.45s cubic-bezier(.2,.9,.3,1.2); }
.celeb-icon { font-size: 3.4rem; line-height: 1; margin-bottom: 10px; }
.celeb h2 { font-size: 1.9rem; line-height: 1.1; margin: 2px 0 6px; }
.celeb-zh { font-size: 1.5rem; color: var(--accent); margin-bottom: 8px; }
.celeb p { margin-bottom: 14px; }
.celeb-xp { font-size: 1.5rem; font-weight: 700; background: var(--xp); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 16px; }
.confetti { position: fixed; inset: 0; pointer-events: none; z-index: 450; }
@keyframes pop { from { transform: scale(0.8); opacity: 0; } }
@media (max-width: 480px) { .statrow { grid-template-columns: 26px 1fr 70px 40px; } .charsheet { gap: 12px; } }