:root{--color-bg: #0a0a0a;--color-surface: #141414;--color-surface-elevated: #161616;--color-surface-hover: #1c1c1c;--color-primary: #8b0000;--color-primary-hover: #a00000;--color-text: #f0f0f0;--color-text-muted: #8a8a8a;--color-text-dim: #555;--color-border: rgba(255, 255, 255, .06);--color-border-focus: rgba(139, 0, 0, .5);--sidebar-width: 200px;--sidebar-width-narrow: 72px;--player-bar-height: 68px;--player-panel-width: 268px;--content-padding: 24px;--font-sans: "Space Grotesk", system-ui, sans-serif;--font-mono: "Courier New", Courier, monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-hero: 0 8px 32px rgba(139, 0, 0, .25);--shadow-card: 0 2px 12px rgba(0, 0, 0, .3)}@media(max-width:900px){:root{--sidebar-width: var(--sidebar-width-narrow);--player-panel-width: min(100vw, 320px)}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:640px){:root{--content-padding: 16px;--player-panel-width: 100vw}}.row-action{opacity:.5;transition:opacity .1s}.row-action-host:hover .row-action:not(:disabled),.row-action:focus-visible{opacity:1}.row-action:disabled{opacity:.2}.seek-range{-webkit-appearance:none;appearance:none;width:100%;height:14px;margin:0;background:transparent;cursor:pointer}.seek-range:disabled{cursor:default}.seek-range::-webkit-slider-runnable-track{height:4px;border-radius:2px;background:linear-gradient(to right,var(--color-primary) var(--seek-fill, 0%),#2a2a2a var(--seek-fill, 0%))}.seek-range::-moz-range-track{height:4px;border-radius:2px;background:linear-gradient(to right,var(--color-primary) var(--seek-fill, 0%),#2a2a2a var(--seek-fill, 0%))}.seek-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:10px;height:10px;margin-top:-3px;border-radius:50%;background:#f0f0f0;box-shadow:0 0 4px #0009;opacity:0;transition:opacity .15s}.seek-range::-moz-range-thumb{width:10px;height:10px;border:none;border-radius:50%;background:#f0f0f0;opacity:0;transition:opacity .15s}.seek-range:not(:disabled):hover::-webkit-slider-thumb,.seek-range:focus-visible::-webkit-slider-thumb{opacity:1}.seek-range:not(:disabled):hover::-moz-range-thumb,.seek-range:focus-visible::-moz-range-thumb{opacity:1}.seek-range:focus-visible{outline:2px solid var(--color-border-focus);outline-offset:2px;border-radius:4px}