:root{--font-sans:"Inter", system-ui, -apple-system, sans-serif;--color-bg-dark:#08070c;--color-amber:#e6a15c;--color-amber-glow:#e6a15c40;--color-glass-bg:#0e0c16d9;--color-glass-border:#ffffff1f;--color-text-main:#fff;--color-text-sub:#fff9;--radius-pill:9999px;--radius-xl:20px;--radius-md:10px;--transition-fast:.2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;-webkit-user-select:none;user-select:none;-webkit-font-smoothing:antialiased;margin:0;padding:0}html,body{width:100%;height:100%;font-family:var(--font-sans);background-color:var(--color-bg-dark);color:var(--color-text-main);overflow:hidden}.app-container{background:radial-gradient(circle,#151320 0%,#08070c 70%,#030206 100%);flex-direction:column;justify-content:space-between;align-items:center;width:100%;height:100vh;padding:20px;display:flex;position:relative}.top-header{z-index:10;justify-content:space-between;align-items:center;width:100%;max-width:900px;display:flex}.brand-logo{align-items:center;gap:10px;display:flex}.logo-disc{width:22px;height:22px;color:var(--color-amber)}.brand-name{letter-spacing:1px;color:#fff;font-size:1.1rem;font-weight:700}.yt-playlist-btn{border-radius:var(--radius-pill);border:1px solid var(--color-glass-border);color:#fff;transition:all var(--transition-fast);background:#ffffff14;align-items:center;gap:8px;padding:6px 14px;font-size:.8rem;font-weight:500;text-decoration:none;display:flex}.yt-playlist-btn:hover{background:#ffffff29;border-color:#ffffff40;transform:translateY(-1px)}.yt-red{color:red;width:16px;height:16px}.ext-sm{opacity:.6;width:14px;height:14px}.picture-view{flex-grow:1;justify-content:center;align-items:center;width:100%;max-width:900px;padding:16px 0;display:flex;overflow:hidden}.art-frame{aspect-ratio:1;max-width:100%;height:min(58vh,440px);box-shadow:0 20px 50px #000000d9, 0 0 30px var(--color-amber-glow);border:1px solid var(--color-glass-border);background:#000;border-radius:20px;position:relative;overflow:hidden}.art-img{object-fit:cover;width:100%;height:100%}.yt-engine{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute;bottom:-9999px;left:-9999px}.player-footer{border-radius:var(--radius-pill);background:var(--color-glass-bg);-webkit-backdrop-filter:blur(28px);border:1px solid var(--color-glass-border);z-index:20;justify-content:space-between;align-items:center;width:100%;max-width:900px;height:74px;padding:0 24px;display:flex;box-shadow:0 16px 40px #0009}.player-meta{flex-direction:column;width:240px;display:flex;overflow:hidden}.track-title{color:#fff;white-space:nowrap;text-overflow:ellipsis;font-size:.86rem;font-weight:600;overflow:hidden}.track-sub{color:var(--color-text-sub);white-space:nowrap;text-overflow:ellipsis;font-size:.72rem;overflow:hidden}.player-controls{flex-direction:column;flex-grow:1;align-items:center;gap:4px;max-width:380px;padding:0 12px;display:flex}.ctrl-buttons{align-items:center;gap:12px;display:flex}.btn-action{color:var(--color-text-sub);cursor:pointer;width:34px;height:34px;transition:all var(--transition-fast);background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;display:flex}.btn-action:hover{color:#fff;background:#ffffff1f}.btn-action.main-play{background:var(--color-amber);color:#000;width:40px;height:40px;box-shadow:0 4px 14px var(--color-amber-glow)}.btn-action.main-play:hover{background:#ffa84e;transform:scale(1.08)}.progress-bar-box{align-items:center;gap:10px;width:100%;display:flex}.time-label{color:var(--color-text-sub);font-variant-numeric:tabular-nums;text-align:center;width:32px;font-size:.7rem}.seek-track{cursor:pointer;background:#ffffff26;border-radius:2px;flex-grow:1;align-items:center;height:4px;display:flex;position:relative}.seek-fill{background:var(--color-amber);pointer-events:none;border-radius:2px;width:0%;height:100%;position:absolute;top:0;left:0}.seek-input{opacity:0;cursor:pointer;z-index:2;width:100%;height:100%;position:absolute}.seek-track:hover .seek-fill{background:#ffa84e}.player-extra{justify-content:flex-end;align-items:center;gap:16px;width:180px;display:flex}.volume-group{color:var(--color-text-sub);align-items:center;gap:6px;display:flex}.vol-input{width:60px;height:4px;accent-color:var(--color-amber);cursor:pointer;border-radius:2px}.yt-open-link{color:var(--color-text-sub);transition:color var(--transition-fast);justify-content:center;align-items:center;display:flex}.yt-open-link:hover{color:var(--color-amber)}.footer-credit{color:#ffffff73;letter-spacing:.5px;margin-top:10px;font-size:.75rem}.author-link{color:var(--color-amber);transition:color var(--transition-fast);font-weight:600;text-decoration:none}.author-link:hover{color:#ffa84e;text-decoration:underline}.hidden{display:none!important}@media (width<=640px){.player-footer{border-radius:20px;flex-direction:column;gap:8px;height:auto;padding:12px 16px}.player-meta,.player-extra{text-align:center;justify-content:center;width:100%}.volume-group{display:none}}