/* Theory Quest — paper-craft night theme */
:root {
  --ink: #1c1a33; --ink2: #262347; --ink3: #322e5c;
  --paper: #fbf6e9; --paper2: #f3ead3; --paper-ink: #1b1a2e;
  --text: #f4f1ff; --muted: #a9a3cf;
  --good: #3ccf8e; --bad: #ff5d73; --gold: #ffc44d;
  --c: #7aa8ff;
  --radius: 18px;
  --shadow-paper: 0 1px 0 rgba(255,255,255,.6) inset, 0 2px 0 rgba(0,0,0,.08), 0 10px 24px -8px rgba(0,0,0,.45);
  --font: ui-rounded, "SF Pro Rounded", "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--ink); color: var(--text); font-family: var(--font); -webkit-font-smoothing: antialiased; }
body { min-height: 100vh; overflow-x: hidden; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
b { font-weight: 800; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-weight: 400; font-size: .85em; }
.mono { font-family: ui-monospace, Menlo, monospace; letter-spacing: .08em; background: rgba(255,255,255,.08); padding: 2px 8px; border-radius: 8px; }

/* ---------- background ---------- */
#bg { position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(1200px 600px at 80% -10%, #3a2f73 0%, transparent 60%), radial-gradient(900px 500px at -10% 20%, #233c66 0%, transparent 55%), var(--ink); }
.paper-hills { position: absolute; bottom: 0; left: 0; width: 100%; height: 34vh; }
.paper-hills path { filter: drop-shadow(0 -3px 4px rgba(0,0,0,.25)); }
.paper-hills .h1 { fill: #2b2754; animation: drift 18s ease-in-out infinite alternate; }
.paper-hills .h2 { fill: #34306a; animation: drift 14s ease-in-out infinite alternate-reverse; }
.paper-hills .h3 { fill: #3d387a; }
@keyframes drift { from { transform: translateX(-1.5%); } to { transform: translateX(1.5%); } }
.staff-lines { position: absolute; top: 22vh; left: -5%; right: -5%; opacity: .07; transform: rotate(-4deg); }
.staff-lines i { display: block; height: 2px; background: #fff; margin: 14px 0; animation: wave 9s ease-in-out infinite; }
.staff-lines i:nth-child(2) { animation-delay: -1s; } .staff-lines i:nth-child(3) { animation-delay: -2s; }
.staff-lines i:nth-child(4) { animation-delay: -3s; } .staff-lines i:nth-child(5) { animation-delay: -4s; }
@keyframes wave { 50% { transform: translateY(6px) scaleX(1.02); } }

/* ---------- header ---------- */
#top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px; padding: 12px clamp(12px, 3vw, 28px);
  background: rgba(28,26,51,.78); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.06); }
.brand { display: flex; align-items: center; gap: 8px; color: var(--text); text-decoration: none; font-size: 18px; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: var(--paper); color: var(--paper-ink); font-size: 20px; box-shadow: var(--shadow-paper); transform: rotate(-6deg); }
.brand-text b { font-weight: 900; }
.grades { display: flex; gap: 4px; background: rgba(255,255,255,.06); padding: 4px; border-radius: 12px; }
.gtab { padding: 6px 12px; border-radius: 9px; font-weight: 800; font-size: 14px; color: var(--muted); }
.gtab.on { background: var(--paper); color: var(--paper-ink); box-shadow: var(--shadow-paper); }
.gtab.soon { opacity: .5; }
.hud { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.chip { display: flex; align-items: center; gap: 8px; padding: 4px 12px 4px 4px; border-radius: 99px; background: rgba(255,255,255,.07); font-weight: 700; font-size: 14px; }
.avatar { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--gold); color: var(--paper-ink); font-weight: 900; }
.avatar.big { width: 52px; height: 52px; font-size: 24px; }
.lvl { display: flex; align-items: center; gap: 6px; font-weight: 900; }
.lvl > span { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; background: #6c5cff; transform: rotate(45deg); font-size: 13px; }
.lvl > span::first-line { }
.xpbar { width: 70px; height: 8px; border-radius: 9px; background: rgba(255,255,255,.12); overflow: hidden; }
.xpbar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, #6c5cff, #4de1ff); border-radius: 9px; transition: width .8s cubic-bezier(.2,.9,.3,1.2); }
.streak { font-weight: 900; display: flex; align-items: center; gap: 2px; }
.flame { display: inline-block; animation: flick 1.6s ease-in-out infinite; }
@keyframes flick { 50% { transform: scale(1.12) rotate(-6deg); } }
.icon-btn { font-size: 18px; padding: 6px; border-radius: 10px; }
@media (max-width: 640px) { .brand-text, .xpbar, #playerName { display: none; } #top { gap: 8px; } }

main { max-width: 1100px; margin: 0 auto; padding: clamp(14px, 3vw, 32px); padding-bottom: 120px; }
.fade-in { animation: fadeUp .45s cubic-bezier(.2,.8,.3,1) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 14px; font-weight: 800; background: var(--gold); color: var(--paper-ink);
  box-shadow: 0 4px 0 #c48d1f, 0 10px 20px -8px rgba(0,0,0,.5); transition: transform .12s, box-shadow .12s; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 #c48d1f; }
.btn.big { font-size: 20px; padding: 16px 28px; }
.btn.ghost { background: rgba(255,255,255,.1); color: var(--text); box-shadow: none; }
.back { color: var(--muted); font-weight: 700; padding: 6px 0; margin-bottom: 10px; }
.back:hover { color: var(--text); }

/* ---------- paper ---------- */
.paper-sheet { background: var(--paper); color: var(--paper-ink); border-radius: var(--radius); box-shadow: var(--shadow-paper); padding: clamp(16px, 3vw, 28px); position: relative;
  background-image: radial-gradient(rgba(0,0,0,.035) 1px, transparent 1px); background-size: 6px 6px; }
.paper-sheet .muted { color: #6b6585; }

/* ---------- home ---------- */
.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; align-items: center; margin: 10px 0 36px; }
@media (max-width: 820px) { .hero { grid-template-columns: 1fr; } }
.kicker { text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 800; color: var(--gold); }
.hero h1 { font-size: clamp(40px, 7vw, 68px); margin: 6px 0 8px; line-height: 1; letter-spacing: -.02em; }
.scribble { position: relative; color: var(--gold); }
.scribble::after { content: ""; position: absolute; left: -4px; right: -4px; bottom: -4px; height: 10px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 12'%3E%3Cpath d='M2 8 Q50 1 100 7 T198 5' fill='none' stroke='%23ff7a59' stroke-width='4' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center/100% 100%; }
.hero p { color: var(--muted); font-size: 18px; max-width: 34ch; }
.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mode { text-align: left; padding: 18px; border-radius: 16px; display: flex; flex-direction: column; gap: 4px; position: relative; overflow: hidden;
  box-shadow: var(--shadow-paper); transition: transform .2s cubic-bezier(.2,.9,.3,1.4); color: var(--paper-ink); }
.mode b { font-size: 19px; } .mode small { opacity: .75; font-weight: 600; }
.mode::after { content: ""; position: absolute; right: -18px; bottom: -18px; width: 70px; height: 70px; border-radius: 50%; background: rgba(255,255,255,.25); transition: transform .3s; }
.mode:hover { transform: translateY(-3px) rotate(-.6deg); } .mode:hover::after { transform: scale(1.4); }
.m-smart { background: #ffc44d; } .m-blitz { background: #ff7a59; } .m-exam { background: #7aa8ff; } .m-codex { background: #e9e3d0; }
.section-title { font-size: 14px; text-transform: uppercase; letter-spacing: .14em; color: var(--muted); margin: 0 0 14px; }

.chapters { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.chapter { text-align: left; background: var(--paper); color: var(--paper-ink); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-paper);
  animation: fadeUp .5s both; transition: transform .25s cubic-bezier(.2,.9,.3,1.3); }
.chapter:hover { transform: translateY(-5px) rotate(-.5deg); }
.chapter:nth-child(even):hover { transform: translateY(-5px) rotate(.5deg); }
.paper-art { position: relative; height: 120px; background: var(--c); overflow: hidden; }
.paper-art.big { height: 200px; width: 260px; border-radius: var(--radius); box-shadow: var(--shadow-paper); flex: none; }
.paper-art .layer { position: absolute; inset: 0; width: 100%; height: 100%; }
.paper-art .l1 path { fill: rgba(255,255,255,.28); filter: drop-shadow(0 -2px 2px rgba(0,0,0,.12)); }
.paper-art .l2 path { fill: rgba(0,0,0,.14); filter: drop-shadow(0 -2px 2px rgba(0,0,0,.15)); }
.paper-art .l1 { animation: bob 7s ease-in-out infinite; } .paper-art .l2 { animation: bob 5s ease-in-out infinite reverse; }
.paper-art .art { animation: float 6s ease-in-out infinite; filter: drop-shadow(0 3px 2px rgba(0,0,0,.25)); }
.chapter:hover .art { animation-duration: 2.4s; }
@keyframes bob { 50% { transform: translateY(3px); } }
@keyframes float { 50% { transform: translateY(-4px) rotate(-2deg); } }
.art .glyph { font: 900 44px var(--font); fill: var(--paper); text-anchor: middle; }
.art .glyph.sm { font-size: 30px; } .art .glyph.sm2 { font-size: 24px; } .art .glyph.it { font-style: italic; font-size: 22px; font-family: Georgia, serif; }
.art .glyph.emoji { font-size: 40px; }
.art .lines { stroke: var(--paper); stroke-width: 2; opacity: .6; }
.art .steps { fill: var(--paper); }
.art .dot { fill: var(--paper); } .art .dot.d2 { fill: #fff9; } .art .dot.d3 { fill: #fff6; }
.art .arc { fill: none; stroke: var(--paper); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.confetti { position: absolute; width: 10px; height: 10px; background: var(--paper); opacity: .55; border-radius: 2px; animation: float 5s ease-in-out infinite; }
.c1 { top: 18px; left: 18px; transform: rotate(20deg); } .c2 { top: 30px; right: 22px; border-radius: 50%; animation-delay: -2s; }
.ch-body { padding: 14px 16px 16px; }
.ch-body h3 { margin: 0 0 4px; font-size: 18px; }
.ch-body p { margin: 0 0 10px; font-size: 14px; color: #5d5878; min-height: 2.6em; }
.ch-meta { display: flex; justify-content: space-between; align-items: center; font-weight: 800; font-size: 14px; }
.stars { color: #f0a500; letter-spacing: 2px; } .stars em { color: #d9d2bd; font-style: normal; }
.acc { background: var(--paper2); padding: 2px 10px; border-radius: 99px; color: #6b6585; }

/* ---------- chapter view ---------- */
.ch-hero { display: flex; gap: 28px; align-items: center; margin-bottom: 26px; flex-wrap: wrap; }
.ch-hero h1 { font-size: clamp(32px, 5vw, 48px); margin: 0 0 6px; }
.ch-hero p { color: var(--muted); margin: 0 0 12px; font-size: 17px; }
.refresher h2 { margin-top: 0; font-size: 20px; }
.refresher ul { margin: 0; padding-left: 20px; line-height: 1.6; font-size: 16px; }
.refresher li { margin-bottom: 8px; }
.refresher li::marker { color: var(--c); content: "♪  "; }

/* ---------- quiz ---------- */
.quiz { max-width: 760px; margin: 0 auto; }
.quiz-top { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.quiz-top .back { margin: 0; font-size: 20px; }
.dots { display: flex; gap: 6px; flex: 1; }
.dots i { flex: 1; height: 8px; border-radius: 9px; background: rgba(255,255,255,.12); transition: background .3s; }
.dots i.now { background: var(--c); animation: pulseBar 1.4s ease-in-out infinite; }
.dots i.ok { background: var(--good); } .dots i.no { background: var(--bad); } .dots i.done { background: #8b84c4; }
@keyframes pulseBar { 50% { opacity: .55; } }
.combo { font-weight: 900; color: var(--gold); min-width: 90px; text-align: right; }
.combo.hot { animation: pop .4s cubic-bezier(.2,.9,.3,1.6); text-shadow: 0 0 12px rgba(255,196,77,.6); }
@keyframes pop { from { transform: scale(1.5); } }
.blitz-bar { flex: 1; height: 10px; border-radius: 9px; background: rgba(255,255,255,.12); overflow: hidden; }
.blitz-bar i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, #ff5d73, #ffc44d); transition: width .2s linear; }
.blitz-left, .score { font-weight: 900; }
.qcard { background: var(--ink2); border-radius: 22px; padding: clamp(16px, 3vw, 28px); border: 1px solid rgba(255,255,255,.06); box-shadow: 0 20px 40px -20px rgba(0,0,0,.6); }
.qcard.shake { animation: shake .4s; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.qhead { display: flex; gap: 8px; margin-bottom: 12px; }
.tag { font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; background: var(--c); color: var(--paper-ink); padding: 4px 10px; border-radius: 99px; }
.tag.ghost { background: rgba(255,255,255,.1); color: var(--muted); }
.prompt { font-size: clamp(19px, 2.6vw, 23px); line-height: 1.4; margin-bottom: 16px; }
.prompt .term { font-family: Georgia, serif; font-size: 1.15em; color: var(--gold); }
.staff-wrap { position: relative; margin-bottom: 18px; }
.staff.paper { background: var(--paper); border-radius: 16px; padding: 10px 14px; box-shadow: var(--shadow-paper); display: flex; justify-content: center;
  background-image: radial-gradient(rgba(0,0,0,.03) 1px, transparent 1px); background-size: 6px 6px; transform: rotate(-.4deg); }
.staff.paper svg { max-width: 600px; max-height: 210px; }
.staff.paper.grand svg { max-height: 300px; }
.staff.mini svg { max-height: 96px; }
.staff.mini { padding: 4px 6px; transform: none; box-shadow: none; border: 2px solid transparent; }
.play { position: absolute; right: -10px; top: -12px; width: 46px; height: 46px; border-radius: 50%; background: var(--c); color: var(--paper-ink); font-size: 18px; box-shadow: 0 4px 0 rgba(0,0,0,.25); transition: transform .15s; }
.play:hover { transform: scale(1.08); }
.play.solo { position: static; width: auto; height: auto; padding: 12px 22px; border-radius: 14px; margin-bottom: 16px; font-weight: 800; }
.play.pulse { animation: ring .6s; }
@keyframes ring { 0% { box-shadow: 0 0 0 0 rgba(255,255,255,.5); } 100% { box-shadow: 0 0 0 18px rgba(255,255,255,0); } }

.answers { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.answers.five { grid-template-columns: 1fr 1fr; }
@media (max-width: 560px) { .answers { grid-template-columns: 1fr; } }
.ans { display: flex; align-items: center; gap: 12px; text-align: left; padding: 14px 16px; border-radius: 14px; background: var(--ink3); border: 2px solid rgba(255,255,255,.06);
  font-size: 17px; font-weight: 700; transition: transform .12s, background .2s, border-color .2s; animation: fadeUp .35s both; min-height: 58px; }
.ans:hover { transform: translateY(-2px); border-color: var(--c); }
.ans kbd { flex: none; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 8px; background: rgba(255,255,255,.1); font: 800 13px var(--font); color: var(--muted); }
.ans .txt { flex: 1; }
.staff-opts .ans { padding: 8px; flex-direction: column; align-items: stretch; }
.staff-opts .ans kbd { align-self: flex-start; }
.answers.locked .ans { pointer-events: none; }
.ans.right { background: rgba(60,207,142,.18); border-color: var(--good); animation: pop .35s cubic-bezier(.2,.9,.3,1.6); }
.ans.right kbd { background: var(--good); color: #fff; }
.ans.wrong { background: rgba(255,93,115,.16); border-color: var(--bad); }
.ans.picked { border-color: #8b84c4; background: rgba(139,132,196,.2); }
.answers.locked .ans:not(.right):not(.wrong):not(.picked) { opacity: .5; }

.feedback:empty { display: none; }
.fb { margin-top: 18px; padding: 18px; border-radius: 16px; animation: fadeUp .35s both; border-left: 6px solid; }
.fb.good { background: rgba(60,207,142,.1); border-color: var(--good); }
.fb.bad { background: rgba(255,93,115,.1); border-color: var(--bad); }
.fb-head { font-weight: 900; font-size: 20px; margin-bottom: 6px; }
.fb .xp { font-size: 14px; color: var(--gold); margin-left: 6px; }
.fb-text { line-height: 1.55; color: #ddd8f5; margin-bottom: 14px; font-size: 16px; }
.lore-pop { background: var(--paper); color: var(--paper-ink); border-radius: 14px; padding: 14px 16px; margin: 0 0 14px; box-shadow: var(--shadow-paper); transform: rotate(-.6deg); animation: unfold .6s cubic-bezier(.2,.9,.3,1.3) both; }
@keyframes unfold { from { transform: rotate(-6deg) scale(.85); opacity: 0; } }
.lore-pop h4 { margin: 6px 0 4px; font-size: 17px; } .lore-pop p { margin: 0; line-height: 1.5; font-size: 15px; }
.lore-badge { font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; color: #c46a00; }

/* piano */
.piano-box { display: block; }
.piano { --kw: calc(min(100%, 680px) / 14); --bw: calc(var(--kw) * .62); position: relative; height: 170px; width: min(100%, 680px); margin: 0 auto 14px; }
.wk, .bk { position: absolute; top: 0; transition: background .15s, transform .08s; }
.wk { width: var(--kw); height: 100%; background: #fbf6e9; border: 1px solid #c9bf9f; border-radius: 0 0 10px 10px; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 8px; color: #8a8270; font-size: 11px; font-weight: 800; box-shadow: inset 0 -6px 0 #e5dcc3; }
.bk { width: var(--bw); height: 60%; background: #23213b; border-radius: 0 0 8px 8px; z-index: 2; box-shadow: inset 0 -5px 0 #111; }
.wk:active, .bk:active { transform: translateY(2px); }
.wk.sel { background: #ffd987; box-shadow: inset 0 -6px 0 #f0b43c; color: var(--paper-ink); }
.bk.sel { background: #f0a500; box-shadow: inset 0 -5px 0 #a86f00; }
.locked .wk.target { background: #b9f2d5; } .locked .bk.target { background: var(--good); }
.locked .wk.sel:not(.target) { background: #ffc3cb; } .locked .bk.sel:not(.target) { background: var(--bad); }
.wk span { pointer-events: none; }
@media (max-width: 560px) { .wk span { font-size: 0; } .piano { height: 140px; } }
.build-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.sel-list { flex: 1; color: var(--muted); font-weight: 700; }

/* ---------- results ---------- */
.results { max-width: 680px; margin: 0 auto; }
.res-card { text-align: center; }
.big-num { font-size: 72px; font-weight: 900; line-height: 1; margin: 10px 0; }
.res-stars { font-size: 56px; margin: 6px 0 10px; }
.res-stars span { color: #ddd4b8; display: inline-block; }
.res-stars span.on { color: #f0a500; animation: starIn .6s cubic-bezier(.2,.9,.3,1.6) both; text-shadow: 0 4px 0 #c47f00; }
@keyframes starIn { from { transform: scale(0) rotate(-90deg); } }
.res-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 18px 0; }
.res-stats div { background: var(--paper2); border-radius: 12px; padding: 10px 4px; }
.res-stats b { display: block; font-size: 22px; } .res-stats small { color: #6b6585; font-weight: 700; }
.band { display: inline-block; margin: 10px 0; padding: 10px 24px; border-radius: 99px; font-weight: 900; font-size: 26px; transform: rotate(-2deg); }
.b-distinction { background: #ffc44d; } .b-merit { background: #7aa8ff; } .b-pass { background: #5ad1a3; } .b-keep { background: #e9e3d0; }
.newlore { text-align: left; margin: 10px 0; } .newlore h3 { margin: 0 0 8px; }
.lore-mini { background: #fff; border-radius: 12px; padding: 10px 14px; margin-bottom: 8px; border-left: 4px solid #f0a500; }
.lore-mini p { margin: 4px 0 0; font-size: 14px; line-height: 1.5; }
.review { text-align: left; margin: 12px 0; } .review summary { cursor: pointer; font-weight: 800; padding: 8px 0; }
.rev { padding: 12px 0; border-top: 1px dashed #d8cfb4; font-size: 15px; line-height: 1.45; }
.rev-q { font-weight: 700; } .rev-a { margin: 4px 0; } .rev-e { color: #5d5878; }
.res-actions { display: flex; gap: 10px; justify-content: center; margin-top: 16px; }
.res-actions .btn.ghost { background: var(--paper2); color: var(--paper-ink); }

/* ---------- codex ---------- */
.codex h1 { font-size: 40px; margin: 0 0 4px; }
.lore-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-top: 18px; }
.lore-card { background: var(--paper); color: var(--paper-ink); border-radius: 16px; padding: 16px; box-shadow: var(--shadow-paper); border-top: 8px solid var(--c); animation: fadeUp .4s both; transition: transform .2s; }
.lore-card:hover { transform: rotate(-.8deg) translateY(-3px); }
.lore-card h3 { margin: 6px 0; font-size: 18px; } .lore-card p { margin: 0; line-height: 1.5; font-size: 14.5px; color: #3e3a58; }
.lore-card.locked { background: #3a3566; color: var(--muted); box-shadow: none; }
.lore-card.locked h3 { letter-spacing: .3em; } .lore-card.locked p { color: var(--muted); }
.lore-topic { font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; opacity: .7; }

/* ---------- overlay / players ---------- */
.overlay { position: fixed; inset: 0; z-index: 50; background: rgba(10,8,25,.6); backdrop-filter: blur(6px); display: grid; place-items: center; padding: 20px; animation: fadeUp .25s both; }
.sheet { width: min(520px, 100%); }
.sheet h2 { margin-top: 0; }
.players { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; margin: 14px 0; }
.pbtn { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 8px; border-radius: 14px; background: var(--paper2); font-weight: 800; color: var(--paper-ink); }
.pbtn small { color: #6b6585; }
.newp { display: flex; gap: 8px; margin-bottom: 10px; }
.newp input { flex: 1; font: inherit; padding: 12px 14px; border-radius: 12px; border: 2px solid #ddd3b6; background: #fff; color: var(--paper-ink); }

/* ---------- toast & fx ---------- */
#toast { opacity: 0; position: fixed; bottom: 26px; left: 50%; transform: translate(-50%, 120px); background: var(--paper); color: var(--paper-ink); padding: 12px 20px; border-radius: 14px; font-weight: 800; box-shadow: var(--shadow-paper); transition: transform .35s cubic-bezier(.2,.9,.3,1.3); z-index: 60; }
#toast.show { transform: translate(-50%, 0); opacity: 1; }
#fx { position: fixed; inset: 0; pointer-events: none; z-index: 70; }
#fx i { position: absolute; width: 9px; height: 13px; border-radius: 2px; animation: confetti 1s cubic-bezier(.2,.7,.4,1) forwards; }
@keyframes confetti { to { transform: translate(var(--dx), calc(var(--dy) + 120px)) rotate(var(--r)); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }

/* ---------- note glow & ear ---------- */
.staff .lit path, .staff .lit use, .staff .lit rect { fill: #ff5d3b !important; stroke: #ff5d3b !important; transition: fill .05s; }
.play.solo.ear { font-size: 18px; padding: 16px 26px; display: inline-flex; align-items: center; gap: 12px; }
.eq { display: inline-flex; gap: 3px; align-items: flex-end; height: 18px; }
.eq i { width: 4px; background: var(--paper-ink); border-radius: 2px; animation: eq 1s ease-in-out infinite; }
.eq i:nth-child(1) { height: 40%; } .eq i:nth-child(2) { height: 90%; animation-delay: -.3s; } .eq i:nth-child(3) { height: 60%; animation-delay: -.6s; } .eq i:nth-child(4) { height: 80%; animation-delay: -.15s; }
@keyframes eq { 50% { transform: scaleY(.35); } }

/* ---------- labs ---------- */
.lab-wrap { margin-bottom: 26px; }
.lab-card { display: flex; flex-direction: column; gap: 14px; }
.lab-tip { margin: 0; color: #4a4566; font-size: 16px; line-height: 1.45; }
.lab-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button { padding: 8px 14px; border-radius: 12px; background: var(--paper2); color: var(--paper-ink); font-weight: 800; font-size: 14px; border: 2px solid transparent; transition: transform .1s; }
.seg.small button { padding: 6px 10px; font-size: 13px; }
.seg button.on { background: var(--c); border-color: rgba(0,0,0,.15); transform: translateY(-1px); box-shadow: 0 3px 0 rgba(0,0,0,.15); }
.beat-row { display: flex; gap: 18px; justify-content: center; padding: 18px 8px; flex-wrap: wrap; background: #fff; border-radius: 16px; }
.grp { display: flex; gap: 10px; align-items: center; padding: 8px 12px; border-radius: 99px; background: var(--paper2); }
.bd { width: 18px; height: 18px; border-radius: 50%; background: #d9cfb2; transition: transform .08s, background .08s; }
.bd.big { width: 30px; height: 30px; background: #b9ad88; }
.bd.one { background: #8f8462; }
.bd.lit { background: var(--c) !important; transform: scale(1.35); box-shadow: 0 0 0 6px rgba(0,0,0,.06); }
.tempo { display: flex; align-items: center; gap: 8px; font-weight: 800; color: #4a4566; }
.say { font-weight: 800; color: #4a4566; font-family: ui-monospace, Menlo, monospace; }
.say.big { font-family: var(--font); font-size: 18px; text-align: center; min-height: 1.5em; color: var(--paper-ink); }
.lab-card .piano { margin: 0 auto; }
.iv-out { text-align: center; }
.iv-name { font-size: 22px; } .iv-ratio { color: #4a4566; margin-top: 4px; font-size: 17px; }
.iv-wave svg { width: 100%; height: 90px; margin-top: 8px; background: #fff; border-radius: 12px; }
.iv-wave polyline { fill: none; stroke-width: 2; } .iv-wave .w1 { stroke: #ff7a59; opacity: .7; } .iv-wave .w2 { stroke: #4d9bff; opacity: .7; } .iv-wave .w3 { stroke: #7a3cff; stroke-width: 3; }
.iv-wave small { color: #6b6585; }
.chordpads { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
@media (max-width: 560px) { .chordpads { grid-template-columns: repeat(3, 1fr); } }
.pad { padding: 14px 6px; border-radius: 14px; background: var(--c); color: var(--paper-ink); display: flex; flex-direction: column; align-items: center; box-shadow: 0 5px 0 rgba(0,0,0,.2); transition: transform .08s, box-shadow .08s; }
.pad b { font-size: 22px; } .pad small { font-weight: 700; opacity: .75; }
.pad:active, .pad.hit { transform: translateY(4px); box-shadow: 0 1px 0 rgba(0,0,0,.2); }
.lab-staff { min-height: 80px; transform: none !important; border: 1px solid #e8dfc5; }
.pattern { display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; }
.st { font-weight: 900; font-family: ui-monospace, Menlo, monospace; padding: 4px 10px; border-radius: 8px; background: var(--paper2); transition: transform .1s; }
.st.s1 { background: #ffd6cc; } .st.s3 { background: #ffe08a; }
.st.lit { transform: translateY(-4px) scale(1.15); background: var(--c); }
.clef-stage { display: flex; align-items: center; gap: 12px; }
.clef-stage .lab-staff { flex: 1; }
.arrow { width: 54px; height: 54px; border-radius: 16px; background: var(--c); font-size: 22px; color: var(--paper-ink); box-shadow: 0 4px 0 rgba(0,0,0,.2); }
.arrow:active { transform: translateY(3px); box-shadow: 0 1px 0 rgba(0,0,0,.2); }

/* ---------- write-it & SATB ---------- */
.seq-chips { display: flex; flex-wrap: wrap; gap: 6px; min-height: 36px; margin-bottom: 12px; align-items: center; }
.chip-n { background: var(--ink3); padding: 6px 10px; border-radius: 10px; font-weight: 800; animation: pop .25s both; }
.chip-n.good { background: rgba(60,207,142,.25); } .chip-n.bad { background: rgba(255,93,115,.25); }
.wk.flash { background: #ffe9a8 !important; } .bk.flash { background: #6b5cff !important; }
.satb { display: flex; flex-direction: column; gap: 12px; }
.satb-ctrl { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
@media (max-width: 560px) { .satb-ctrl { grid-template-columns: repeat(2, 1fr); } }
.vrow { background: var(--ink3); border-radius: 14px; padding: 10px; display: grid; grid-template-columns: 1fr auto 1fr; grid-template-rows: auto auto; gap: 6px; align-items: center; text-align: center; }
.vrow b { grid-column: 1 / -1; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.vb { background: var(--c); color: var(--paper-ink); border-radius: 10px; padding: 8px 0; font-size: 14px; box-shadow: 0 3px 0 rgba(0,0,0,.25); }
.vb:active { transform: translateY(2px); box-shadow: none; }
.vn { font-weight: 900; font-size: 18px; min-width: 44px; }
.rules { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 14px; font-size: 15px; color: var(--muted); }
.rules li.ok { color: #c9f5de; }
@media (max-width: 560px) { .rules { grid-template-columns: 1fr; } }
.locked .vb { pointer-events: none; opacity: .5; }