/* RaceCastUI — Design Tokens
 * Dark broadcast aesthetic, racing-red accent, F1-inspired large overlays.
 */

:root {
  /* ── Palette ───────────────────────────────────────────────── */
  --rc-bg-0: #08090b;          /* canvas / deepest */
  --rc-bg-1: #0e1014;          /* surface base */
  --rc-bg-2: #14171d;          /* card */
  --rc-bg-3: #1c2028;          /* elevated */
  --rc-bg-4: #262b35;          /* hover */
  --rc-line: #2a2f3a;          /* hairline */
  --rc-line-soft: #1e222a;

  --rc-text: #f4f5f7;          /* primary text */
  --rc-text-2: #b8bcc6;        /* secondary */
  --rc-text-3: #6c7280;        /* muted */
  --rc-text-4: #444a55;        /* disabled */

  --rc-red: #ff2b2b;           /* racing red — primary accent */
  --rc-red-2: #e60012;         /* deeper red */
  --rc-red-glow: rgba(255, 43, 43, 0.45);
  --rc-red-tint: rgba(255, 43, 43, 0.12);

  --rc-amber: #ffb01a;         /* warning / yellow flag */
  --rc-green: #00d563;         /* live / good signal */
  --rc-green-tint: rgba(0, 213, 99, 0.14);
  --rc-blue: #3a8dff;          /* info */
  --rc-purple: #b06bff;        /* fastest lap */

  /* ── Type ──────────────────────────────────────────────────── */
  --rc-font-display: 'Rajdhani', 'Barlow Condensed', system-ui, sans-serif;
  --rc-font-ui: 'Inter Tight', 'Inter', system-ui, -apple-system, sans-serif;
  --rc-font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;

  /* ── Radii / shadow ────────────────────────────────────────── */
  --rc-r-sm: 4px;
  --rc-r-md: 8px;
  --rc-r-lg: 12px;
  --rc-r-xl: 18px;

  --rc-shadow-1: 0 1px 0 rgba(255,255,255,0.04) inset, 0 1px 2px rgba(0,0,0,0.4);
  --rc-shadow-2: 0 8px 24px rgba(0,0,0,0.5), 0 1px 0 rgba(255,255,255,0.04) inset;
  --rc-shadow-glow: 0 0 0 1px var(--rc-red), 0 0 24px var(--rc-red-glow);
}

/* ── Base reset for racecast-scoped surfaces ───────────────── */
.rc-root {
  font-family: var(--rc-font-ui);
  color: var(--rc-text);
  background: var(--rc-bg-0);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'ss01', 'cv11';
  letter-spacing: -0.005em;
}

.rc-root * { box-sizing: border-box; }
.rc-root button { font-family: inherit; }

/* Display / numerics — condensed, sharp, F1-broadcast feel */
.rc-display {
  font-family: var(--rc-font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.rc-num {
  font-family: var(--rc-font-display);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.005em;
}
.rc-mono {
  font-family: var(--rc-font-mono);
  font-variant-numeric: tabular-nums;
}

/* ── Building blocks ───────────────────────────────────────── */
.rc-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 22px; padding: 0 8px;
  border-radius: 3px;
  background: var(--rc-bg-3);
  color: var(--rc-text-2);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  font-family: var(--rc-font-display);
}
.rc-chip.live {
  background: var(--rc-red);
  color: #fff;
  box-shadow: 0 0 12px var(--rc-red-glow);
}
.rc-chip.live::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: #fff;
  animation: rc-pulse 1.4s ease-in-out infinite;
}
.rc-chip.ok { background: var(--rc-green-tint); color: var(--rc-green); }
.rc-chip.warn { background: rgba(255,176,26,0.15); color: var(--rc-amber); }
.rc-chip.muted { background: var(--rc-bg-2); color: var(--rc-text-3); }

@keyframes rc-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.rc-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 38px; padding: 0 16px;
  border-radius: var(--rc-r-md);
  border: 1px solid var(--rc-line);
  background: var(--rc-bg-3);
  color: var(--rc-text);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  transition: background .12s, border-color .12s, transform .06s;
  font-family: var(--rc-font-ui);
  letter-spacing: 0.01em;
}
.rc-btn:hover { background: var(--rc-bg-4); border-color: #353b48; }
.rc-btn:active { transform: translateY(1px); }
.rc-btn.primary {
  background: var(--rc-red);
  border-color: var(--rc-red);
  color: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.06) inset, 0 4px 14px rgba(255,43,43,0.35);
}
.rc-btn.primary:hover { background: #ff4040; border-color: #ff4040; }
.rc-btn.ghost { background: transparent; }
.rc-btn.ghost:hover { background: var(--rc-bg-2); }
.rc-btn.icon { width: 38px; padding: 0; }
.rc-btn.sm { height: 30px; padding: 0 10px; font-size: 12px; }
.rc-btn.sm.icon { width: 30px; padding: 0; }

.rc-card {
  background: var(--rc-bg-1);
  border: 1px solid var(--rc-line);
  border-radius: var(--rc-r-lg);
}

.rc-input {
  height: 40px;
  width: 100%;
  background: var(--rc-bg-2);
  border: 1px solid var(--rc-line);
  border-radius: var(--rc-r-md);
  color: var(--rc-text);
  padding: 0 12px;
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color .12s, box-shadow .12s, background .12s;
}
.rc-input:focus {
  border-color: var(--rc-red);
  box-shadow: 0 0 0 3px var(--rc-red-tint);
  background: var(--rc-bg-1);
}

.rc-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rc-text-3);
  font-family: var(--rc-font-display);
}

.rc-divider {
  height: 1px;
  background: var(--rc-line);
  border: 0;
}

.rc-scroll::-webkit-scrollbar { width: 8px; height: 8px; }
.rc-scroll::-webkit-scrollbar-track { background: transparent; }
.rc-scroll::-webkit-scrollbar-thumb { background: var(--rc-line); border-radius: 4px; }
.rc-scroll::-webkit-scrollbar-thumb:hover { background: var(--rc-bg-4); }

/* checker pattern for video placeholder */
.rc-checker {
  background-image:
    linear-gradient(45deg, rgba(255,255,255,.02) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,.02) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,.02) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,.02) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
}

/* simulated video noise */
.rc-noise {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.04) 0, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.03) 0, transparent 40%);
  pointer-events: none;
}

/* track-side scan-line / signal feel */
.rc-scanlines::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0,0,0,0) 0,
    rgba(0,0,0,0) 2px,
    rgba(0,0,0,0.08) 3px,
    rgba(0,0,0,0) 4px
  );
  pointer-events: none;
  mix-blend-mode: multiply;
}