:root {
  color-scheme: dark light;
  --night-bg: radial-gradient(circle at 18% 18%, rgba(255, 215, 0, 0.14), transparent 62%),
              radial-gradient(circle at 82% 12%, rgba(0, 243, 255, 0.08), transparent 68%),
              linear-gradient(180deg,#04070d,#070f1b 52%,#020406);
  --night-panel: rgba(7, 11, 18, 0.94);
  --night-border: rgba(255, 215, 0, 0.22);
  --night-text: #f8fafc;
  --night-muted: rgba(198, 203, 214, 0.72);
  --night-accent: #ffd700;
  --night-green: #00ff9d;
  --night-red: #ff5f7f;
  --night-yellow: #f5c542;

  --day-bg: #F2F4F7;
  --day-panel: #FFFFFF;
  --day-border: #D0D5DD;
  --day-text: #101828;
  --day-muted: #475467;
  --day-accent: #2563EB;
  --day-green: #12B76A;
  --day-red: #F04438;
  --day-yellow: #F79009;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

body {
  position: relative;
  color: var(--text-color);
  background: var(--bg-gradient);
  transition: background .5s ease, color .3s ease;
}

body::before {
  content: "";
  position: fixed;
  inset: -2%;
  z-index: -3;
  background: var(--bg-gradient);
  filter: saturate(115%);
  transform: scale(1.02);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background: radial-gradient(60% 60% at 50% 45%, rgba(255,255,255,.05), transparent 75%);
  mix-blend-mode: screen;
  opacity: .55;
}

body[data-theme="day"]::after {
  opacity: .12;
  mix-blend-mode: normal;
}

::-webkit-scrollbar { width: 10px; height: 8px; }
::-webkit-scrollbar-track { background: var(--scroll-track); }
::-webkit-scrollbar-thumb {
  background: var(--scroll-thumb);
  border-radius: 999px;
  box-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}