:root{--bg-main:#f8fafc;--bg-sidebar:#fff;--bg-player:#fffc;--bg-card:#fff;--bg-card-hover:#f1f5f9;--text-main:#0f172a;--text-secondary:#64748b;--accent:#7c3aed;--accent-gradient:linear-gradient(135deg, #7c3aed 0%, #3b82f6 100%);--accent-hover:#6d28d9;--sidebar-width:260px;--player-height:64px;--nav-height:56px;--danger:#ef4444;--border-main:#00000014;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d}@media (width>=768px){:root{--player-height:90px;--nav-height:0px;--sidebar-width:220px}}@media (width>=1024px){:root{--sidebar-width:260px}}.loading-screen{background-color:var(--bg-main);justify-content:center;align-items:center;width:100vw;height:100vh;display:flex}.storm-loader{border:4px solid var(--bg-card);border-top-color:var(--accent);border-radius:50%;width:48px;height:48px;animation:1s linear infinite spin}@keyframes 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