/* 设计令牌：颜色、间距、字体、动效 */
:root {
  --accent: #b4553a;
  --accent-ink: #ffffff;
  --accent-soft: #f7ebe6;
  --accent-line: #e8d3ca;

  --paper: #f8f6f2;
  --panel: #fffefb;
  --panel-2: #fbf9f5;
  --sunk: #f2efe9;

  --ink: #22201c;
  --ink-2: #565049;
  --ink-3: #8c8478;
  --ink-4: #b3ab9f;

  --line: #e7e1d6;
  --line-soft: #efeae1;

  --ok: #2f7a55;
  --warn: #9a6a12;
  --bad: #a83a32;

  --radius: 14px;
  --radius-sm: calc(var(--radius) * 0.6);
  --radius-lg: calc(var(--radius) * 1.35);

  --fs: 15px;
  --lh: 1.72;

  --gap: 18px;
  --pad: 22px;
  --rail-w: 232px;

  --shadow-1: 0 1px 2px rgba(34, 32, 28, .04), 0 6px 18px -12px rgba(34, 32, 28, .22);
  --shadow-2: 0 2px 6px rgba(34, 32, 28, .06), 0 22px 44px -28px rgba(34, 32, 28, .38);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-serif: "Iowan Old Style", "Songti SC", "Source Han Serif SC", Georgia, serif;
  --font-mono: "SF Mono", "JetBrains Mono", ui-monospace, Consolas, monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --t: 170ms;
}

[data-density="compact"] {
  --gap: 13px;
  --pad: 16px;
  --lh: 1.62;
}

[data-theme="dark"] {
  --paper: #16150f;
  --panel: #1d1c15;
  --panel-2: #22211a;
  --sunk: #14130d;

  --ink: #f0ece1;
  --ink-2: #c3bba9;
  --ink-3: #8f887a;
  --ink-4: #6a6457;

  --line: #322f24;
  --line-soft: #292720;

  --accent-soft: #2a211a;
  --accent-line: #3f3128;

  --ok: #74b98f;
  --warn: #d3a95c;
  --bad: #d98379;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 22px -14px rgba(0, 0, 0, .6);
  --shadow-2: 0 2px 8px rgba(0, 0, 0, .36), 0 30px 60px -34px rgba(0, 0, 0, .8);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 var(--fs)/var(--lh) var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
code, pre { font-family: var(--font-mono); font-size: .9em; }

::selection { background: var(--accent-soft); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb {
  background: var(--line);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--ink-4); background-clip: content-box; }
::-webkit-scrollbar-track { background: transparent; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}