:root{color-scheme:dark;--bg:#0b1123;--panel:#17233e;--line:#34405c;--txt:#f5f7ff;--muted:#aebdda;--mint:#76ebda;--violet:#a39aff}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 75% -10%,#292257 0,transparent 38%),var(--bg);color:var(--txt);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.5}button,input,select{font:inherit}button{cursor:pointer}a{color:var(--mint)}.sitehead{max-width:1220px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:24px 20px}.sitehead a{text-decoration:none;font-size:14px;color:#c9d6ed}.sitehead .logo{font-weight:850;font-size:23px;color:white}.logo span{color:var(--mint)}main{max-width:1220px;margin:auto;padding:0 20px 80px}.hero{border:1px solid #4b426e;background:radial-gradient(circle at 90% 25%,#44316d,transparent 44%),linear-gradient(135deg,#17274b,#161b39);border-radius:28px;padding:65px clamp(22px,6vw,75px);position:relative;overflow:hidden}.kicker,.eyebrow{font-size:11px;letter-spacing:2px;color:var(--mint);font-weight:800}.hero h1{font-size:clamp(36px,6vw,72px);line-height:1.07;letter-spacing:-2px;margin:20px 0}.hero h1 em{font-style:normal;color:var(--mint)}.hero p{max-width:550px;color:#c5d2ed;font-size:17px}.hero-actions{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-top:30px}.hero-actions span{font-size:13px;color:#b7c4e1}button.primary,.hero-actions button,.playbtn{background:linear-gradient(135deg,#7de6d9,#a7a0ff);color:#10152a;border:0;border-radius:11px;font-weight:800;padding:12px 18px}.navtabs{display:flex;gap:8px;margin:28px 0 38px;border-bottom:1px solid var(--line);overflow:auto}.navtabs button,.learning-nav button{background:none;color:#bdcbe3;border:0;padding:14px 19px;white-space:nowrap}.navtabs button.active,.learning-nav button.active{color:var(--mint);box-shadow:inset 0 -3px var(--mint)}.panel[hidden]{display:none}.sectiontitle{display:flex;justify-content:space-between;align-items:end;gap:20px}.sectiontitle h2,.panel>h2{font-size:34px;letter-spacing:-.8px;margin:7px 0}.sectiontitle p,.muted,.panel>p{color:var(--muted)}.searchbar{display:flex;gap:12px;margin:25px 0 30px}.searchbar input,.searchbar select{background:#17243f;border:1px solid var(--line);color:white;padding:15px;border-radius:12px}.searchbar input{flex:1;min-width:0}.artist-group{margin:26px 0 38px}.artist-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}.artist-avatar{width:56px;height:56px;border-radius:17px;display:grid;place-items:center;background:linear-gradient(145deg,#7762ba,#227f88);font-weight:900}.artist-head h3{margin:0}.artist-head p{color:var(--muted);font-size:13px;margin:2px 0}.song-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:16px}.song-card,.progress-card{border:1px solid var(--line);border-radius:20px;background:#15213a;overflow:hidden}.song-art{height:135px;display:grid;place-items:center;background:radial-gradient(circle at 40% 40%,#6c58a5,transparent 48%),linear-gradient(125deg,#244a61,#231e50);font-size:70px;color:#9ceee0}.song-content{padding:20px}.song-content h4{font-size:21px;margin:10px 0 4px}.song-content p{color:var(--muted);font-size:13px;min-height:38px}.tag{color:#a9e8de;font-size:11px;letter-spacing:1px;font-weight:750}.notice{padding:18px 20px;border:1px solid #555077;border-radius:14px;color:#c8d5ec;background:#211f3b}.studio-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.studio-top button{border:0;background:none;color:var(--mint)}.studio-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:24px}.player-shell,.statbox,#activity{background:#15213b;border:1px solid var(--line);border-radius:20px;padding:22px}.visual-header{display:flex;gap:20px;align-items:center;margin-bottom:20px}.vinyl{flex:none;width:90px;height:90px;border-radius:50%;background:repeating-radial-gradient(circle,#293451 0 5px,#151e38 6px 10px);display:grid;place-items:center;color:var(--mint);font-size:35px}.visual-header h2{margin:4px 0;font-size:28px}.visual-header p,.visual-header #artist-label,.video-caption{color:var(--muted);font-size:13px}.video{aspect-ratio:16/9;background:#090d19;border-radius:12px;overflow:hidden}.video iframe{width:100%;height:100%;border:0}.video-caption{margin-bottom:0}.learning-nav{display:flex;gap:4px;overflow:auto;margin:18px 0}.learning-nav button{font-size:13px}.activity-head h3{font-size:24px;margin:8px 0}.vocab-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:22px 0}.vocab-card{border:1px solid #4b5576;background:#202f4e;color:white;border-radius:12px;text-align:left;padding:15px;display:flex;flex-direction:column;gap:6px}.vocab-card span{color:#b9c8e0}.question{padding:20px 0;border-bottom:1px solid var(--line)}.question h4{margin:8px 0 15px}.options{display:grid;gap:8px}.option{background:#202e4b;border:1px solid #485572;color:white;text-align:left;border-radius:10px;padding:12px}.option.correct{border-color:#66d5bb;background:#204e4b}.option.wrong{border-color:#df928d;background:#56323e}.feedback{font-size:13px}.good{color:#7ee9d2}.bad{color:#f5b5b1}.checkline{display:block;margin:18px 0;color:#d2def1}.checkline input{margin-right:10px;accent-color:#70d8cb}.side{display:grid;align-content:start;gap:15px}.statbox h3{font-size:24px;margin:10px 0 4px}.statbox p{font-size:14px;color:var(--muted)}.meter{background:#34415e;border-radius:20px;height:8px;overflow:hidden}.meter span{display:block;width:0;height:100%;background:linear-gradient(90deg,#77e8d9,#aa99ff);transition:width .2s}.progress-card{padding:20px;margin:12px 0}.progress-card h3{margin:0}.progress-card p{color:var(--muted)}footer{padding:35px;text-align:center;border-top:1px solid var(--line);color:var(--muted);font-size:13px}@media(max-width:850px){.studio-grid{grid-template-columns:1fr}.sectiontitle{display:block}.searchbar{flex-direction:column}.hero{padding:40px 25px}.sitehead .logo{font-size:19px}.sitehead{gap:12px}.sitehead a{font-size:12px}}@media(max-width:440px){.vocab-grid{grid-template-columns:1fr}.visual-header h2{font-size:22px}.vinyl{width:64px;height:64px}}

/* Music Lab 2.2 */
.searchbar{flex-wrap:wrap}.searchbar select{min-width:140px}.discovery-note{color:#c1cfea;padding:12px 0 20px;font-size:.92rem}.future-artists{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin:18px 0 36px}.future-card{border:1px solid #344565;border-radius:18px;padding:20px;background:linear-gradient(145deg,#202b4b,#121e38);min-height:140px}.future-card strong{font-size:1.15rem;display:block;margin:8px 0}.future-card small{color:#b3c1df}.future-card .tag{display:inline-block;color:#8debdc;font-size:.7rem;letter-spacing:.1em}.breakdown{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-bottom:28px}.breakdown-card{border:1px solid #354465;background:#182642;padding:18px;border-radius:16px}.breakdown-card h4{margin:8px 0}.breakdown-card p{color:#b9c9e8;font-size:.9rem}.karaoke-shell{background:linear-gradient(140deg,#142d45,#292149);border:1px solid #465478;padding:24px;border-radius:22px}.karaoke-display{min-height:120px;display:grid;place-items:center;text-align:center;font-size:clamp(1.3rem,3vw,2.5rem);font-weight:800;color:#86f3e0;line-height:1.45}.karaoke-line{cursor:pointer;padding:9px 12px;border:1px solid #36496a;border-radius:12px;background:#1a2945;color:#d5e2f7;text-align:left;width:100%}.karaoke-line.active{border-color:#82eddd;background:#22445c}.karaoke-lines{display:grid;gap:7px;max-height:280px;overflow:auto;margin:16px 0}.karaoke-tools{display:flex;flex-wrap:wrap;gap:8px}.karaoke-tools button{border:1px solid #617396;border-radius:12px;background:#233553;color:white;padding:10px}.karaoke-shell textarea{width:100%;min-height:120px;background:#0e1a31;color:#dbe7fb;border:1px solid #445476;border-radius:12px;padding:12px;margin-top:10px}.rights-note{color:#d3c6ad;font-size:.84rem}.karaoke-tools button:focus-visible,.karaoke-line:focus-visible{outline:3px solid #83f1e3}/* Music Lab 2.3 collections and bilingual lyric explorer */
.ml23-artist-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:20px}.ml23-artist{border:1px solid #334362;border-radius:18px;background:#17233d;padding:22px}.ml23-artist h3{font-size:1.25rem;margin:0 0 6px;color:#fff}.ml23-artist p{color:#a6badc;margin:0 0 18px}.ml23-track{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid #334362;color:#e5edff}.ml23-track span:last-child{font-size:.65rem;letter-spacing:.05em;text-align:right;max-width:120px}.ml23-ready{color:#6de1cf}.ml23-pending{color:#a8b5cb}.ml23-search{width:100%;padding:14px;border-radius:12px;background:#0e1930;border:1px solid #344763;color:#fff;margin-top:14px}.ml23-translation{margin-top:24px;border-top:1px solid #334362;padding-top:20px}.ml23-translation p{color:#aebdd8}.ml23-bilingual-lines{display:grid;gap:12px;margin:18px 0;max-height:460px;overflow:auto}.ml23-bilingual-row{background:#14213a;border:1px solid #304465;border-radius:14px;padding:14px;display:grid;gap:8px}.ml23-bilingual-row strong{font-size:1.1rem;color:white}.ml23-bilingual-row p{margin:0;color:#82e5da}.ml23-bilingual-row small{color:#aabbd7}.ml23-bilingual-row button{justify-self:start}.ml23-translation input{max-width:100%;color:#dce8fc}