:root{color-scheme:dark;--bg:#11191b;--panel:#1a2527;--muted:#9caeac;--text:#edf3ed;--accent:#b6edb7;--line:#31413f;--danger:#ffd0bd;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 82% 8%,#233a332e,transparent 52%),var(--bg);color:var(--text);font-size:14px;line-height:1.7}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button,a,input,textarea{outline-offset:5px}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}.page-shell{max-width:1180px;margin:0 auto;padding:0 40px}.header{min-height:106px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:13px;font-size:18px;font-weight:650;letter-spacing:.03em}.brand:hover{text-decoration:none}.brand-tag{font-size:10px;font-weight:400;color:var(--muted);border-left:1px solid var(--line);padding-left:10px;margin-left:12px;letter-spacing:.07em}.server-state{display:flex;gap:8px;align-items:center;font-size:12px;color:var(--muted)}.state-dot{width:6px;height:6px;border-radius:50%;background:#829b8c}.state-dot.ready{background:var(--accent);box-shadow:0 0 10px #b6edb733}.state-dot.error{background:#e8aa89}.intro{padding:62px 0 40px;position:relative}.eyebrow{display:flex;align-items:center;gap:8px;color:var(--accent);font-size:12px;letter-spacing:.14em;margin-bottom:18px}.eyebrow span{width:19px;height:1px;background:var(--accent)}h1{font-size:clamp(34px,4.6vw,54px);font-weight:600;letter-spacing:-.035em;line-height:1.3;margin:0 0 20px}h1>span{color:var(--accent)}.intro>p{color:var(--muted);line-height:1.9;font-size:14px;margin:0}.format-tags{display:flex;gap:8px;margin-top:22px}.format-tags span{padding:3px 10px;border:1px solid var(--line);border-radius:5px;font-size:10px;letter-spacing:.04em;color:#c4d5ca}.workspace{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(260px,1fr);gap:20px}.input-card,.result-card,.login-card{background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:28px}.card-heading{display:flex;align-items:center;gap:13px;margin-bottom:24px}.step{font-size:12px;color:var(--accent);border:1px solid #58705c;border-radius:50%;width:31px;height:31px;display:inline-flex;justify-content:center;align-items:center;flex-shrink:0}.card-heading h2{font-size:17px;margin:0;font-weight:550}.card-heading p{font-size:12px;color:var(--muted);margin:1px 0 0}.input-card textarea{width:100%;height:152px;resize:vertical;min-height:105px;max-height:320px;background:#131d1f;border:1px solid #3c514b;border-radius:9px;color:var(--text);padding:17px 18px;line-height:1.9;transition:border-color .2s;font-size:13px}.input-card textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 2px #b6edb712}textarea::placeholder,input::placeholder{color:#748882;opacity:1}.input-actions{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:18px}.text-button{padding:8px 0;color:var(--muted);background:none;border:0;font-size:12px}.text-button:hover{color:var(--accent)}.primary,.secondary{border-radius:7px;padding:12px 20px;font-size:13px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:22px;line-height:1.4;border:1px solid transparent;min-height:44px}.primary{background:var(--accent);color:#163b27}.primary:hover{background:#c8fac7;text-decoration:none}.secondary{background:transparent;border-color:#64816b;color:var(--accent)}.secondary:hover{background:#253b30;text-decoration:none}.input-tip{font-size:11px;color:var(--muted);margin:22px 0 0}.guide-card{border:1px solid #31453c;border-radius:15px;background:linear-gradient(140deg,#293c32,#1b2a27);padding:27px 30px;position:relative;overflow:hidden}.guide-card h2{font-size:17px;font-weight:550;margin:19px 0 8px;position:relative}.guide-card>p{font-size:12px;color:#acbfb1;max-width:265px;margin:0 0 20px;position:relative}.vinyl{position:absolute;width:210px;height:210px;border-radius:50%;top:-65px;right:-85px;opacity:.65;background:repeating-radial-gradient(circle,#17251d 0px,#17251d 3px,#3c4d3c 4px,#17251d 5px);border:9px solid #14231b}.vinyl-label{background:#9ab580;border:2px solid #1b2920;position:absolute;inset:65px;border-radius:50%;font-size:25px;color:#223527;display:flex;align-items:center;justify-content:center}.sample-files{display:flex;flex-direction:column;gap:9px;color:#d2e2d1;font-size:12px}.sample-files>span{display:flex;gap:12px;align-items:center;padding:7px 11px;background:#0e1d1533;border:1px solid #829e7e26;border-radius:6px}.sample-files i{font-style:normal;color:#afc5a5;width:13px}.notice{margin-top:20px;padding:15px 20px;border:1px solid #5d7562;background:#21372b;border-radius:9px;color:#d3edcf;font-size:13px;white-space:pre-line;overflow-wrap:anywhere}.notice.error{background:#412c25;border-color:#7d5041;color:var(--danger)}.login-card{max-width:480px;margin:20px auto}.login-row{display:flex;gap:12px;margin-top:12px}.login-row input{background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:10px 13px;color:var(--text);min-width:0;flex:1}.result-card{margin-top:24px}.availability{margin-left:auto;font-size:11px;padding:4px 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span:last-child{letter-spacing:.13em}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}.busy::before{content:"";width:13px;height:13px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:1000px){.intro .format-tags{position:absolute;right:0;bottom:48px}}@media(max-width:760px){.page-shell{padding:0 22px}.header{min-height:82px}.brand{font-size:16px;gap:10px}.brand-tag{display:none}.intro{padding-top:43px}.workspace{grid-template-columns:1fr}.guide-card{display:none}.input-card,.result-card{padding:23px}.song-layout{grid-template-columns:125px minmax(0,1fr);gap:22px}.cover-placeholder{min-height:125px}.song-info h3{font-size:20px}.details{gap:18px}.primary,.secondary{padding:12px 15px;gap:12px}.song-layout .prepare-button{font-size:12px}.card-heading p{font-size:11px}}@media(max-width:480px){.page-shell{padding:0 17px}.header{gap:10px}.server-state{font-size:10px}.brand img{width:31px;height:31px}.intro{padding:34px 0 28px}h1{font-size:34px;margin-bottom:17px}.intro>p{font-size:12px}.desktop-break{display:none}.input-card,.result-card{padding:20px}.card-heading{gap:10px;margin-bottom:20px}.card-heading h2{font-size:15px}.input-card textarea{height:145px;padding:13px;font-size:12px}.input-tip{font-size:10px}.song-layout{display:flex;flex-direction:column;gap:21px}.cover-wrap{width:152px}.cover-placeholder{min-height:152px}.song-info h3{font-size:23px}.availability{font-size:10px}.details{gap:26px}.downloads .primary{flex:1}.extra-links{gap:15px}footer{flex-direction:column;gap:5px}}@media(prefers-reduced-motion:reduce){*,*::before{animation:none!important;transition:none!important}}