:root {
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  --font-display: "Iowan Old Style", "Palatino Linotype", "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --font-mono: "SFMono-Regular", "SF Mono", ui-monospace, Menlo, monospace;
  --radius: 32px;
  --radius-sm: 18px;
  --nav-h: 74px;
  --dock-h: 88px;
  --glass-x: 28%;
  --glass-y: 16%;
  --tint: #5b7fd6;
}

:root[data-theme="liquid"] {
  color-scheme: light;
  --bg-0: #edf2f8;
  --bg-1: #e7eef7;
  --ink: #161c27;
  --sub: #5b6576;
  --muted: #8a93a3;
  --accent: #2b6fd6;
  --accent-ink: #fff;
  --line: rgba(255, 255, 255, 0.8);
  --line-strong: rgba(36, 52, 78, 0.12);
  --glass-fill: linear-gradient(155deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.28) 48%, rgba(226, 237, 250, 0.38));
  --glass-thick: linear-gradient(155deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.55));
  --glass-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.96),
    inset 0 -1px 0 rgba(40, 56, 78, 0.04),
    0 12px 32px rgba(36, 54, 82, 0.08),
    0 32px 70px rgba(36, 54, 82, 0.06);
  --good: #1f8a66;
  --warn: #c47b24;
  --danger: #c45b5b;
  --chip: rgba(255, 255, 255, 0.58);
  --grain: rgba(36, 54, 82, 0.035);
}

:root[data-theme="eye"] {
  color-scheme: light;
  --bg-0: #ece6d2;
  --bg-1: #e3ecd6;
  --ink: #333c2c;
  --sub: #5f6a4e;
  --muted: #7f896c;
  --accent: #53673a;
  --accent-ink: #f7f3e4;
  --line: rgba(255, 250, 230, 0.74);
  --line-strong: rgba(72, 84, 52, 0.16);
  --glass-fill: linear-gradient(155deg, rgba(255, 251, 236, 0.78), rgba(232, 237, 210, 0.52));
  --glass-thick: linear-gradient(155deg, rgba(255, 252, 240, 0.92), rgba(236, 240, 214, 0.72));
  --glass-shadow:
    inset 0 1px 0 rgba(255, 255, 244, 0.92),
    0 12px 30px rgba(70, 82, 48, 0.08);
  --good: #456434;
  --warn: #9a6a28;
  --danger: #a85a48;
  --chip: rgba(255, 250, 232, 0.72);
  --grain: rgba(70, 82, 48, 0.04);
}

:root[data-theme="ink"] {
  color-scheme: dark;
  --bg-0: #090d14;
  --bg-1: #121925;
  --ink: #eef3fb;
  --sub: #9aa8bc;
  --muted: #748196;
  --accent: #7cb4ff;
  --accent-ink: #0b1018;
  --line: rgba(255, 255, 255, 0.14);
  --line-strong: rgba(180, 206, 240, 0.22);
  --glass-fill: linear-gradient(155deg, rgba(38, 52, 74, 0.72), rgba(14, 20, 32, 0.5));
  --glass-thick: linear-gradient(155deg, rgba(54, 72, 98, 0.8), rgba(20, 28, 42, 0.72));
  --glass-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 18px 48px rgba(0, 0, 0, 0.38);
  --good: #6dcea0;
  --warn: #e0b05a;
  --danger: #ef8b8b;
  --chip: rgba(255, 255, 255, 0.07);
  --grain: rgba(255, 255, 255, 0.03);
}

[data-tint="violet"] { --tint: #6f63e8; }
[data-tint="cyan"] { --tint: #1f9bb8; }
[data-tint="amber"] { --tint: #c4842a; }
[data-tint="rose"] { --tint: #c45d70; }
[data-tint="gold"] { --tint: #b7922a; }
[data-tint="blue"] { --tint: #2b6fd6; }

:root[data-theme="ink"] [data-tint="violet"] { --tint: #a8a0ff; }
:root[data-theme="ink"] [data-tint="cyan"] { --tint: #6ed5ea; }
:root[data-theme="ink"] [data-tint="amber"] { --tint: #e2b05c; }
:root[data-theme="ink"] [data-tint="rose"] { --tint: #f0a0ae; }
:root[data-theme="ink"] [data-tint="gold"] { --tint: #e6c66a; }

html, body { min-height: 100%; }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font);
  background:
    radial-gradient(ellipse at 12% 8%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 34%),
    radial-gradient(ellipse at 88% 12%, rgba(255, 255, 255, 0.55), transparent 32%),
    linear-gradient(165deg, var(--bg-0), var(--bg-1) 55%, var(--bg-0));
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image:
    linear-gradient(var(--grain) 1px, transparent 1px),
    linear-gradient(90deg, var(--grain) 1px, transparent 1px);
  background-size: 5px 5px;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.55;
}

.blob-a {
  top: -8%;
  left: -6%;
  width: 42vw;
  height: 42vw;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.7), transparent 68%);
}

.blob-b {
  top: 18%;
  right: -10%;
  width: 38vw;
  height: 38vw;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 28%, transparent), transparent 70%);
}

.blob-c {
  bottom: -12%;
  left: 28%;
  width: 34vw;
  height: 34vw;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.35), transparent 68%);
}

:root[data-theme="ink"] .blob-a {
  background: radial-gradient(circle, rgba(90, 140, 210, 0.22), transparent 68%);
}

@media (prefers-reduced-transparency: reduce) {
  :root {
    --glass-fill: var(--bg-0);
    --glass-thick: var(--bg-0);
  }
  .glass {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
  .blob { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .blob { filter: none; }
}