/* Yohaku demo · shared chrome.
   Inline copy of @yohaku/design-system/tokens.css + apps/web runtime tokens
   so each demo HTML is self-contained when opened directly. */

:root {
  --color-accent: #c56473;

  --color-neutral-1: #f9f8f5;
  --color-neutral-2: #f0efeb;
  --color-neutral-3: #e3e1db;
  --color-neutral-4: #d0cec6;
  --color-neutral-5: #a8a69f;
  --color-neutral-6: #787670;
  --color-neutral-7: #5c5a55;
  --color-neutral-8: #403f3a;
  --color-neutral-9: #24231f;
  --color-neutral-10: #141312;

  --color-info: #3d6896;
  --color-success: #5e9f7e;
  --color-warning: #a87a3d;
  --color-error: #a64953;

  --color-paper: #fefefb;
  --color-border: rgba(24, 24, 27, 0.1);
  --color-hair: rgba(24, 24, 27, 0.08);

  --field-bg: var(--color-paper);
  --field-border: rgba(0, 0, 0, 0.05);
  --field-shadow: 0 1px 1px rgba(0, 0, 0, 0.01),
    0 3px 10px rgba(0, 0, 0, 0.02);
  --field-gradient: linear-gradient(
    180deg,
    color-mix(in srgb, var(--color-accent) 3%, transparent) 0%,
    transparent 26%
  );

  --font-serif: 'Source Han Serif SC', 'Songti SC', STSong, Georgia,
    'Times New Roman', Times, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --font-mono: 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--color-paper);
  color: var(--color-neutral-9);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: color-mix(in srgb, var(--color-accent) 30%, transparent);
}

/* Layout chrome */

.shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 48px 96px;
}

.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  border-bottom: 1px solid var(--color-hair);
}

.topnav__brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.topnav__brand .name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--color-neutral-10);
}

.topnav__brand .cn {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--color-accent);
}

.topnav__links {
  display: flex;
  gap: 24px;
  font-size: 13px;
  color: var(--color-neutral-7);
}

.topnav__links a:hover {
  color: var(--color-neutral-10);
}

/* Buttons (mirror StyledButton) */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.btn--primary {
  background: color-mix(in srgb, var(--color-accent) 8%, transparent);
  border-color: color-mix(in srgb, var(--color-accent) 30%, transparent);
  color: var(--color-accent);
}

.btn--primary:hover {
  background: color-mix(in srgb, var(--color-accent) 12%, transparent);
  border-color: color-mix(in srgb, var(--color-accent) 45%, transparent);
}

.btn--secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-neutral-9);
}

/* Eyebrow / meta typography */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-neutral-7);
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-neutral-7);
}

.divider {
  margin: 32px 0;
  height: 0.5px;
  border: 0;
  background: color-mix(in srgb, var(--color-neutral-10) 20%, transparent);
}