:root{color:#111;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--accent:#d71920;--accent-strong:#a90f15;--ink:#111;--muted:#666;--line:#d8d8d8;--line-strong:#a8a8a8;--surface:#fff;--surface-hard:#f7f7f7;--panel:#e9e9e9;--danger:#d71920;--shadow:0 12px 24px #00000024;background:#f2f2f2;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,sans-serif}*{box-sizing:border-box}html{background:#f2f2f2}body{min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button{-webkit-tap-highlight-color:transparent}.hidden-input{display:none}.login-shell{background:linear-gradient(#d7192012,#0000 34%),#f2f2f2;place-items:center;min-height:100vh;padding:18px;display:grid}.login-card{background:var(--surface);border:1px solid var(--line-strong);width:min(390px,100vw - 36px);max-width:100%;box-shadow:var(--shadow);border-radius:8px;padding:22px}.brand-mark{color:#fff;background:#111;border:1px solid #000;border-radius:8px;place-items:center;width:42px;height:42px;display:grid}.brand-mark.small{border-radius:7px;flex:none;width:34px;height:34px}.login-card h1{margin:18px 0 6px;font-size:26px;line-height:1.12}.login-card p,.topbar p,.sidebar-title span,.track-main span,.player-main span,.status-line,.setup-note{color:var(--muted)}.login-form{gap:12px;margin-top:20px;display:grid}.login-form label{color:#222;gap:7px;font-size:13px;font-weight:700;display:grid}.login-form input,.new-group input,.search-box input{border:1px solid var(--line-strong);background:var(--surface-hard);width:100%;min-height:42px;color:var(--ink);border-radius:6px;outline:none;padding:0 11px}.login-form input:focus,.new-group input:focus,.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #d719201f}.primary-button,.icon-button,.new-group button,.play-button,.row-tools button,.track-tools button,.upload-panel button{border:1px solid var(--line-strong);background:var(--surface);min-height:40px;color:var(--ink);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;gap:7px;display:inline-flex}.primary-button,.primary-touch{background:var(--accent);color:#fff;border-color:#a90f15;font-weight:800}.primary-button{width:100%}.spin{animation:.9s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.setup-note,.status-line{margin-top:12px;font-size:12px;line-height:1.45}.setup-note{color:#4d4100;background:#fff7cf;border:1px solid #d3ad2f;border-radius:6px;padding:10px}.app-shell{min-height:100vh;padding-bottom:calc(78px + env(safe-area-inset-bottom));grid-template-columns:272px minmax(0,1fr);display:grid}.sidebar{border-right:1px solid var(--line-strong);background:#f7f7f7;align-self:start;min-height:100vh;padding:16px 12px;position:sticky;top:0}.sidebar-title{border-bottom:1px solid var(--line);align-items:center;gap:10px;margin-bottom:14px;padding:0 2px 12px;display:flex}.sidebar-title strong,.player-main strong,.track-main strong{line-height:1.22;display:block}.sidebar-title strong{font-size:15px}.sidebar-title span{margin-top:2px;font-size:11px;display:block}.quota-panel{border:1px solid var(--line-strong);background:#fff;border-radius:6px;gap:7px;margin:0 0 12px;padding:10px;display:grid}.quota-head,.quota-meta{justify-content:space-between;align-items:center;gap:8px;min-width:0;display:flex}.quota-head span,.quota-meta span{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.quota-head span{color:#222;font-size:12px;font-weight:800}.quota-head strong{color:var(--accent-strong);font-size:13px}.quota-bar{background:#ddd;border-radius:2px;height:6px;overflow:hidden}.quota-bar i{border-radius:inherit;background:var(--accent);height:100%;display:block}.quota-meta{color:var(--muted);font-size:11px}.mobile-quota{display:none}.group-list{gap:5px;display:grid}.group-row{gap:4px;display:grid}.group-tab{color:#222;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;justify-content:flex-start;align-items:center;gap:8px;width:100%;min-height:38px;padding:0 9px;font-size:13px;display:flex}.group-tab.active{color:var(--accent-strong);background:#fff1f1;border-color:#f0b8bb;font-weight:800}.group-tab span{color:inherit;opacity:.75;margin-left:auto;font-size:11px}.row-tools{gap:5px;padding-left:25px;display:flex}.row-tools button{border-radius:5px;min-height:30px;padding:0 8px;font-size:11px}.new-group{grid-template-columns:minmax(0,1fr) 42px;gap:6px;margin-top:12px;display:grid}.content{min-width:0;padding:18px clamp(14px,2.5vw,32px) 24px}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:12px;padding-bottom:12px;display:flex}.topbar h1{margin:0;font-size:24px;line-height:1.05}.topbar p{margin:4px 0 0;font-size:12px}.top-actions{gap:7px;display:flex}.icon-button{padding:0 11px}.mobile-groups{display:none}.search-box{border:1px solid var(--line-strong);background:#fff;border-radius:6px;align-items:center;gap:8px;height:42px;margin-bottom:10px;padding:0 10px;display:flex}.search-box input{height:38px;min-height:0;box-shadow:none;border:0;padding:0}.library-list{gap:10px;display:grid}.group-section{border:1px solid var(--line-strong);background:#fff;border-radius:6px;overflow:hidden}.group-heading{border:0;border-bottom:1px solid var(--line);cursor:pointer;width:100%;min-height:42px;color:var(--ink);background:#f7f7f7;align-items:center;gap:8px;padding:0 11px;font-size:13px;font-weight:850;display:flex}.group-heading small{color:var(--muted);margin-left:auto}.track-list{display:grid}.track-row{border-top:1px solid #e8e8e8;grid-template-columns:40px minmax(0,1fr) auto;align-items:center;gap:9px;padding:9px 11px;display:grid}.track-row:first-child{border-top:0}.track-row.selected{box-shadow:inset 3px 0 0 var(--accent);background:#fff1f1}.play-button{width:38px;height:38px;min-height:38px;color:var(--accent-strong);flex:none;padding:0}.play-button.large{color:#fff;background:var(--accent);border-color:#a90f15;border-radius:7px;width:46px;height:46px;min-height:46px}.track-main{text-align:left;cursor:pointer;background:0 0;border:0;gap:5px;min-width:0;padding:0;display:grid}.track-main strong,.player-main strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.track-main strong{color:#111;font-size:13px}.track-main span{align-items:center;gap:5px;font-size:11px;display:flex}.mini-progress,.upload-progress{background:#ddd;border-radius:2px;height:4px;overflow:hidden}.mini-progress i,.upload-progress i{background:var(--accent);border-radius:inherit;height:100%;display:block}.track-tools{align-items:center;gap:5px;display:flex}.track-tools select,.speed-select{border:1px solid var(--line-strong);min-height:34px;color:var(--ink);background:#fff;border-radius:5px;padding:0 7px;font-size:12px}.track-tools button{border-radius:5px;min-width:34px;min-height:34px}.empty-state{min-height:70px;color:var(--muted);border-top:1px solid var(--line);justify-content:center;align-items:center;gap:7px;font-size:13px;display:flex}.upload-panel{left:50%;bottom:calc(90px + env(safe-area-inset-bottom));border:1px solid var(--line-strong);width:min(520px,100vw - 20px);box-shadow:var(--shadow);z-index:20;background:#fff;border-radius:7px;gap:8px;padding:11px;display:grid;position:fixed;transform:translate(-50%)}.upload-panel strong,.upload-panel span{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.upload-panel strong{font-size:13px}.upload-panel span{color:var(--muted);margin-top:2px;font-size:12px}.upload-panel button{justify-self:end;padding:0 12px}.player{min-height:calc(70px + env(safe-area-inset-bottom));padding:10px 18px calc(10px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-top:1px solid var(--line-strong);z-index:15;background:#f7f7f7f5;grid-template-columns:46px minmax(0,1fr) 74px;align-items:center;gap:12px;display:grid;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -10px 22px #0000001f}.player-main{gap:5px;min-width:0;display:grid}.player-main strong{font-size:13px}.player-main input[type=range]{width:100%;accent-color:var(--accent)}.player-main span{font-size:11px}@media (width<=860px){.app-shell{padding-bottom:calc(104px + env(safe-area-inset-bottom));display:block}.sidebar{display:none}.content{padding:12px 9px 14px}.topbar{align-items:flex-start;margin-bottom:9px;padding-bottom:9px}.topbar h1{font-size:21px}.top-actions{flex:none}.icon-button{min-width:40px;min-height:40px;padding:0 9px}.mobile-groups{scrollbar-width:none;gap:6px;padding:1px 0 9px;display:flex;overflow-x:auto}.mobile-groups::-webkit-scrollbar{display:none}.mobile-chip{border:1px solid 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(width<=430px){.topbar{grid-template-columns:minmax(0,1fr);display:grid}.top-actions{grid-template-columns:1fr 42px 42px;display:grid}.primary-touch{justify-content:center}.login-shell{place-items:start center;padding:14px;overflow-x:hidden}.login-card{width:min(310px,100vw - 28px);margin-top:7vh;padding:20px}}