/* ============ Hangtime design system ============ */
:root {
  --bg: #0f0e17;
  --bg2: #161522;
  --card: #1c1b2b;
  --card2: #232238;
  --text: #f4f2fa;
  --muted: #a7a3c0;
  --line: rgba(255,255,255,.08);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --r: 20px;
  --duel1: #8b5cf6; --duel2: #ef4444;
  --match1: #f43f5e; --match2: #f59e0b;
  --quest1: #10b981; --quest2: #06b6d4;
  --gold: #fbbf24;
  --ok: #34d399; --bad: #f87171;
}
html[data-theme="light"] {
  --bg: #f6f5fb; --bg2: #ffffff; --card: #ffffff; --card2: #f1eefb;
  --text: #191827; --muted: #6d6a86; --line: rgba(20,16,60,.09);
  --shadow: 0 10px 26px rgba(60,50,120,.12);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, sans-serif;
  overscroll-behavior-y: none;
}
#app { max-width: 560px; margin: 0 auto; min-height: 100dvh; display: flex; flex-direction: column; position: relative; }

/* ---------- top bar ---------- */
#topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 18px 10px;
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 21px; letter-spacing: -.3px; }
.brand-emoji { font-size: 24px; }
.icon-btn {
  width: 42px; height: 42px; border-radius: 14px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); font-size: 20px; cursor: pointer;
  transition: transform .12s ease;
}
.icon-btn:active { transform: scale(.92); }

/* ---------- views & tabbar ---------- */
#views { flex: 1; padding: 16px 16px 48px; }
.view { display: none; }
.view.active { display: block; animation: viewIn .28s ease; }
@keyframes viewIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
html[data-anim="off"] .view.active { animation: none; }

/* ---------- type ---------- */
h1 { font-size: 30px; margin: 6px 0 4px; letter-spacing: -.6px; }
h2 { font-size: 22px; margin: 18px 0 8px; letter-spacing: -.3px; }
h3 { font-size: 17px; margin: 14px 0 6px; }
.sub { color: var(--muted); font-size: 15px; line-height: 1.5; margin: 0 0 14px; }
.kicker { font-size: 12px; font-weight: 800; letter-spacing: 1.6px; text-transform: uppercase; color: var(--muted); }

/* ---------- cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: 18px; margin-bottom: 14px; box-shadow: var(--shadow);
}

/* ---------- buttons ---------- */
.btn {
  display: block; width: 100%; border: 0; cursor: pointer; border-radius: 16px;
  padding: 16px; font-size: 17px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--duel1), var(--duel2));
  transition: transform .12s ease, filter .12s;
  min-height: 56px;
}
.btn:active { transform: scale(.97); filter: brightness(1.08); }
.btn.ghost { background: var(--card2); color: var(--text); border: 1px solid var(--line); }
.btn.small { min-height: 0; padding: 10px 14px; font-size: 14px; width: auto; display: inline-block; border-radius: 12px; }
.btn.row2 { display: inline-block; width: calc(50% - 6px); }
.btn + .btn { margin-top: 10px; }
.btn.duel { background: linear-gradient(135deg, var(--duel1), var(--duel2)); }
.btn.match { background: linear-gradient(135deg, var(--match1), var(--match2)); }
.btn.quest { background: linear-gradient(135deg, var(--quest1), var(--quest2)); }
.btn:disabled { opacity: .45; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 14px; }
.chip {
  border: 1px solid var(--line); background: var(--card2); color: var(--text);
  border-radius: 999px; padding: 10px 16px; font-size: 14px; font-weight: 600; cursor: pointer;
  transition: transform .1s;
}
.chip:active { transform: scale(.94); }
.chip.sel { background: var(--text); color: var(--bg); border-color: var(--text); }
.chip-row.duel .chip.sel { background: linear-gradient(135deg, var(--duel1), var(--duel2)); color: #fff; border-color: transparent; }
.chip-row.match .chip.sel { background: linear-gradient(135deg, var(--match1), var(--match2)); color: #fff; border-color: transparent; }
.chip-row.quest .chip.sel { background: linear-gradient(135deg, var(--quest1), var(--quest2)); color: #fff; border-color: transparent; }

/* ---------- forms ---------- */
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .6px; }
.field input, .field select {
  width: 100%; padding: 14px; font-size: 16px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--bg2); color: var(--text);
}
.field input:focus, .field select:focus { outline: 2px solid var(--duel1); border-color: transparent; }

/* ---------- duel ---------- */
.vs-wrap { display: flex; align-items: stretch; gap: 8px; margin: 12px 0; }
.song-card {
  flex: 1; background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: 14px; text-align: center; transition: transform .18s ease, box-shadow .18s ease, border-color .18s;
}
.song-card .art { width: 100%; aspect-ratio: 1; border-radius: 14px; object-fit: cover; background: linear-gradient(135deg, var(--card2), var(--bg2)); margin-bottom: 10px; display: flex; align-items: center; justify-content: center; font-size: 44px; overflow: hidden; }
.song-card .art img { width: 100%; height: 100%; object-fit: cover; }
.song-card h3 { margin: 0 0 2px; font-size: 16px; }
.song-card .artist { color: var(--muted); font-size: 13.5px; margin-bottom: 10px; }
.song-card.winner { border-color: var(--gold); box-shadow: 0 0 0 2px var(--gold), var(--shadow); transform: scale(1.03); }
.song-card.loser { opacity: .45; filter: saturate(.4); transform: scale(.97); }
.vs-badge { align-self: center; font-weight: 900; font-size: 26px; padding: 0 2px;
  background: linear-gradient(135deg, var(--duel1), var(--duel2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pick-btn { width: 100%; margin-top: 4px; }
.tally { font-size: 15px; color: var(--muted); text-align: center; margin: 8px 0; }

/* bracket */
.bracket { display: flex; gap: 10px; overflow-x: auto; padding: 6px 2px 12px; }
.b-round { min-width: 168px; }
.b-round h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin: 0 0 8px; }
.b-match { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px; margin-bottom: 8px; font-size: 13px; }
.b-match .bm-team { display: block; padding: 3px 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.b-match .bm-team.win { color: var(--gold); font-weight: 800; }
.b-match .bm-team.out { opacity: .4; text-decoration: line-through; }
.b-match.playable { border-color: var(--duel1); cursor: pointer; }
.b-match.playable:active { transform: scale(.97); }

/* ---------- match ---------- */
.opt-btn {
  display: block; width: 100%; text-align: left; margin-bottom: 10px; padding: 15px 16px;
  border-radius: 15px; border: 1px solid var(--line); background: var(--card);
  color: var(--text); font-size: 16px; font-weight: 600; cursor: pointer;
  transition: transform .1s, border-color .15s, background .15s;
}
.opt-btn:active { transform: scale(.98); border-color: var(--match1); background: var(--card2); }
.progress { height: 10px; background: var(--card2); border-radius: 99px; overflow: hidden; margin: 10px 0 16px; }
.progress > div { height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--match1), var(--match2)); transition: width .3s ease; }
.score-ring { width: 150px; height: 150px; margin: 6px auto 4px; position: relative; }
.score-ring svg { transform: rotate(-90deg); }
.score-num { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.score-num b { font-size: 38px; letter-spacing: -1px; }
.score-num span { font-size: 12px; color: var(--muted); font-weight: 700; letter-spacing: 1px; }
.cat-bar { margin-bottom: 10px; }
.cat-bar .cb-top { display: flex; justify-content: space-between; font-size: 14px; font-weight: 700; margin-bottom: 5px; }
.cat-bar .cb-track { height: 8px; background: var(--card2); border-radius: 99px; overflow: hidden; }
.cat-bar .cb-fill { height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--match1), var(--match2)); }
.badge { display: inline-block; background: var(--card2); border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; font-size: 14px; font-weight: 700; margin: 0 6px 8px 0; }
.quote { background: var(--card2); border-left: 4px solid var(--match1); border-radius: 0 14px 14px 0; padding: 12px 14px; margin: 10px 0; font-size: 15px; line-height: 1.5; }

/* ---------- quests ---------- */
.quest-card { border: none; color: #fff; background: linear-gradient(150deg, #064e3b, #065f46 45%, #0e7490); position: relative; overflow: hidden; }
.quest-card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 200px at 80% -40px, rgba(255,255,255,.12), transparent); pointer-events: none; }
.quest-card h2 { color: #fff; margin: 2px 0 8px; font-size: 24px; }
.quest-card .flavor { color: rgba(255,255,255,.88); font-size: 15px; line-height: 1.55; margin-bottom: 12px; }
.quest-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 6px; }
.qtag { background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.2); color: #fff; border-radius: 999px; padding: 6px 12px; font-size: 13px; font-weight: 700; }
.xp-pill { background: var(--gold); color: #3a2a00; border-radius: 999px; padding: 6px 14px; font-size: 14px; font-weight: 900; }
.stars { color: var(--gold); letter-spacing: 2px; font-size: 17px; }
.xpbar { height: 12px; background: var(--card2); border-radius: 99px; overflow: hidden; margin: 8px 0; }
.xpbar > div { height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--quest1), var(--quest2)); transition: width .5s ease; }
.trophy { display: flex; gap: 12px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; margin-bottom: 10px; }
.trophy.locked { opacity: .45; filter: grayscale(.8); }
.trophy .t-ico { font-size: 30px; }
.trophy b { display: block; font-size: 15px; }
.trophy small { color: var(--muted); font-size: 13px; }
.hist-row { display: flex; gap: 10px; align-items: center; padding: 12px 4px; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.hist-row:last-child { border-bottom: 0; }
.hist-row .grow { flex: 1; }
.hist-row small { color: var(--muted); display: block; }
.fav-btn { border: 0; background: none; font-size: 20px; cursor: pointer; }
.chain-step { display: flex; gap: 12px; margin-bottom: 12px; }
.chain-step .n { flex: 0 0 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,.16); display: flex; align-items: center; justify-content: center; font-weight: 800; }

/* ---------- share card ---------- */
.share-card { border-radius: 24px; padding: 26px 22px; text-align: center; color: #fff; position: relative; overflow: hidden; margin-bottom: 14px; }
.share-card.duel { background: linear-gradient(150deg, #4c1d95, #a21caf 55%, #dc2626); }
.share-card.match { background: linear-gradient(150deg, #9f1239, #f43f5e 55%, #f59e0b); }
.share-card .sc-kicker { font-size: 12px; font-weight: 800; letter-spacing: 2.5px; opacity: .9; }
.share-card h2 { color: #fff; font-size: 26px; margin: 8px 0 4px; }
.share-card .sc-big { font-size: 54px; font-weight: 900; letter-spacing: -2px; margin: 6px 0; }
.share-card .sc-sub { opacity: .92; font-size: 14.5px; line-height: 1.5; }
.share-card .sc-badges { margin-top: 10px; }
.share-card .badge { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.25); color: #fff; }

/* ---------- misc ---------- */
.empty { text-align: center; padding: 38px 20px; color: var(--muted); }
.empty .e-ico { font-size: 46px; display: block; margin-bottom: 10px; }
.back-link { display: inline-block; margin-bottom: 12px; color: var(--muted); font-weight: 700; font-size: 15px; cursor: pointer; border: 0; background: none; padding: 6px 0; }
.list-row { display: flex; align-items: center; gap: 12px; padding: 13px 4px; border-bottom: 1px solid var(--line); font-size: 15.5px; }
.list-row .grow { flex: 1; }
.list-row small { color: var(--muted); display: block; font-size: 13px; }
#confetti-canvas { position: fixed; inset: 0; pointer-events: none; z-index: 100; }
#toast-root { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 90; display: flex; flex-direction: column; gap: 8px; align-items: center; width: min(92vw, 480px); }
.toast { background: var(--text); color: var(--bg); font-weight: 700; font-size: 14.5px; border-radius: 999px; padding: 12px 20px; box-shadow: var(--shadow); animation: toastIn .25s ease; }
@keyframes toastIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.settings-row { display: flex; align-items: center; justify-content: space-between; padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 16px; font-weight: 600; }
.settings-row:last-child { border: 0; }
.switch { width: 52px; height: 32px; border-radius: 99px; background: var(--card2); border: 1px solid var(--line); position: relative; cursor: pointer; transition: background .15s; }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 24px; height: 24px; border-radius: 50%; background: #fff; transition: left .15s; box-shadow: 0 2px 6px rgba(0,0,0,.3); }
.switch.on { background: var(--quest1); }
.switch.on::after { left: 23px; }
.seg { display: flex; background: var(--card2); border-radius: 12px; padding: 4px; gap: 4px; }
.seg button { flex: 1; border: 0; background: none; color: var(--muted); font-weight: 700; font-size: 13.5px; padding: 9px 4px; border-radius: 9px; cursor: pointer; }
.seg button.sel { background: var(--card); color: var(--text); box-shadow: 0 2px 8px rgba(0,0,0,.2); }
.reveal-pop { animation: pop .45s cubic-bezier(.2,1.6,.4,1); }
@keyframes pop { from { transform: scale(.6); opacity: 0; } to { transform: scale(1); opacity: 1; } }
html[data-anim="off"] .reveal-pop { animation: none; }
.trophy-case { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.trophy.mini { flex-direction: column; text-align: center; margin: 0; padding: 14px 8px; }
.danger { color: var(--bad); }
.center { text-align: center; }
.mt { margin-top: 14px; }
.hidden { display: none !important; }