:root{--bg:#081014;--surface:rgba(18,31,37,.76);--surface-strong:#122127;--text:#f4fbf8;--muted:#91a6a1;--line:rgba(192,255,236,.12);--lime:#baff52;--cyan:#56e7dc;--danger:#ff6b77;--radius:24px}
*{box-sizing:border-box}
html{background:var(--bg);color:var(--text);font:16px/1.5 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
body{margin:0;min-height:100vh;overflow-x:hidden;background:radial-gradient(circle at 10% 0%,#113032 0,transparent 35%),var(--bg)}
button,input{font:inherit}
button{cursor:pointer}
.ambient{position:fixed;width:440px;height:440px;border-radius:50%;filter:blur(120px);opacity:.11;pointer-events:none}
.ambient-one{background:var(--lime);top:-200px;right:-120px}.ambient-two{background:var(--cyan);bottom:-250px;left:-180px}
.shell{width:min(1180px,calc(100% - 40px));margin:0 auto;padding:28px 0 80px;position:relative}
.glass{background:var(--surface);border:1px solid var(--line);box-shadow:0 24px 80px rgba(0,0,0,.25);backdrop-filter:blur(24px) saturate(135%)}
.hidden{display:none!important}
.login-card{max-width:470px;margin:8vh auto 0;padding:42px;border-radius:32px}
.brand-icon{width:74px;height:74px;object-fit:cover;border-radius:18px;box-shadow:0 16px 40px rgba(13,66,155,.36)}
.eyebrow{margin:20px 0 8px;color:var(--cyan);font-size:.75rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
h1,h2,p{margin-top:0}h1{font-size:clamp(2rem,5vw,3.8rem);line-height:1.02;letter-spacing:-.05em}h2{font-size:2rem;letter-spacing:-.035em}
.login-card h1{font-size:2.45rem;margin-bottom:30px}
.stack,.fields{display:grid;gap:16px}
label{display:grid;gap:8px;color:#cce0db;font-size:.86rem;font-weight:700}
input{width:100%;border:1px solid var(--line);border-radius:13px;background:#0c171b;color:var(--text);padding:13px 14px;outline:none;transition:border .18s,box-shadow .18s}
input:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(86,231,220,.12)}
.primary,.ghost{min-height:46px;border-radius:14px;border:0;font-weight:800;transition:transform .12s,filter .18s,background .18s}.primary{background:linear-gradient(110deg,var(--lime),var(--cyan));color:#06221e;padding:0 20px}.primary:hover{filter:brightness(1.05)}.primary:active,.ghost:active{transform:scale(.98)}.primary:disabled{opacity:.55;cursor:wait}
.ghost{background:rgba(255,255,255,.06);color:var(--text);padding:0 16px;border:1px solid var(--line)}.ghost:hover{background:rgba(255,255,255,.1)}
.error{color:var(--danger);min-height:1.4em;margin:0;font-size:.88rem}
.topbar{position:sticky;z-index:10;top:18px;border-radius:20px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between}
.brand-row,.account{display:flex;align-items:center;gap:12px}.brand-row div{display:grid}.brand-row span{color:var(--muted);font-size:.8rem}.tiny-icon{width:42px;height:42px;border-radius:11px}.account{color:var(--muted);font-size:.9rem}
.hero{padding:84px 10px 28px}.hero p:last-child{color:var(--muted);font-size:1.05rem}.hero .eyebrow{margin-top:0}
.upload-grid{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:20px;align-items:start}
.upload-card,.summary-card{border-radius:var(--radius);padding:24px}.upload-card{display:grid;gap:20px}.fields{grid-template-columns:repeat(2,minmax(0,1fr))}
.dropzone{min-height:230px;border:1px dashed rgba(86,231,220,.42);border-radius:18px;display:flex;align-items:center;justify-content:center;text-align:center;gap:6px;padding:24px;background:rgba(86,231,220,.035);color:var(--cyan);transition:background .2s,border .2s,transform .2s}.dropzone:hover,.dropzone.drag{background:rgba(86,231,220,.08);border-color:var(--cyan)}.dropzone.drag{transform:scale(.995)}.dropzone span{color:var(--muted);font-weight:500;font-size:.82rem}.dropzone input{position:absolute;width:1px;height:1px;opacity:0}
.summary-card{display:grid;gap:10px}.metric-label{color:var(--muted);font-size:.82rem}.metric{font-size:4.5rem;line-height:1;letter-spacing:-.08em}.online{margin-top:12px;color:#cde4de;font-size:.85rem}.online i{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 16px var(--lime);margin-right:6px}
.progress-wrap{display:flex;align-items:center;gap:12px}.progress{height:7px;flex:1;background:#0b1519;border-radius:999px;overflow:hidden}.progress div{height:100%;width:0;background:linear-gradient(90deg,var(--lime),var(--cyan));transition:width .15s}.progress-wrap span{color:var(--muted);font-variant-numeric:tabular-nums;font-size:.8rem}.message{margin:0;min-height:1.5em;color:var(--cyan);font-size:.88rem}
.library-section{padding:70px 2px 0}.section-title{display:flex;align-items:end;justify-content:space-between;margin-bottom:20px}.section-title .eyebrow{margin:0 0 5px}.section-title h2{margin:0}.track-list{display:grid;gap:10px}.track{display:grid;grid-template-columns:58px minmax(0,1fr) auto auto;gap:14px;align-items:center;background:rgba(18,31,37,.62);border:1px solid var(--line);border-radius:17px;padding:10px 12px}.track img{width:58px;height:58px;border-radius:12px;object-fit:cover}.track-copy{min-width:0;display:grid}.track-copy strong,.track-copy span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.track-copy span,.duration{color:var(--muted);font-size:.82rem}.delete{width:44px;height:44px;border:0;border-radius:12px;background:transparent;color:var(--muted)}.delete:hover{background:rgba(255,107,119,.1);color:var(--danger)}.empty{text-align:center;color:var(--muted);padding:42px}
@media(max-width:760px){.shell{width:min(100% - 24px,1180px);padding-top:12px}.topbar{top:8px}.account span{display:none}.hero{padding-top:62px}.upload-grid{grid-template-columns:1fr}.summary-card{grid-row:1}.fields{grid-template-columns:1fr}.login-card{padding:28px;margin-top:4vh}.track{grid-template-columns:52px minmax(0,1fr) auto}.track img{width:52px;height:52px}.duration{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
@media(prefers-reduced-transparency:reduce){.glass{backdrop-filter:none;background:var(--surface-strong)}}