@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&family=Newsreader:opsz,wght@6..72,500;6..72,600&display=swap');

:root {
  --brand-primary: #171511;
  --brand-secondary: #b39557;
  --brand-accent: #7f5d2d;
  --brand-muted: #8d8577;
  --surface: #ece8df;
  --surface-elevated: #fffdf8;
  --surface-strong: #f5f0e7;
  --text-primary: #171511;
  --text-secondary: #615b50;
  --text-tertiary: #8c8375;
  --shadow: 0 24px 70px rgba(38, 31, 20, 0.12);
  --bg: var(--surface);
  --text: var(--text-primary);
  --muted: var(--text-secondary);
  --border: rgba(50, 43, 32, 0.16);
  --border-strong: rgba(50, 43, 32, 0.24);
  --brand: var(--brand-secondary);
  --brand-strong: #7f5d2d;
  --soft: rgba(179, 149, 87, 0.16);
  --font-display: 'Newsreader', Georgia, serif;
  --font-body: 'Instrument Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
  font-family: var(--font-body);
}

[data-theme='dark'] {
  --surface: #151913;
  --surface-elevated: #1e231c;
  --surface-strong: #252a22;
  --text-primary: #f6f1e7;
  --text-secondary: #c8bdad;
  --text-tertiary: #9d927f;
  --brand-primary: #f6f1e7;
  --brand-secondary: #c4a364;
  --brand-accent: #dfc17c;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.48);
  --bg: #10140f;
  --text: var(--text-primary);
  --muted: var(--text-secondary);
  --border: rgba(232, 221, 202, 0.16);
  --border-strong: rgba(232, 221, 202, 0.26);
  --brand: var(--brand-secondary);
  --brand-strong: #dfc17c;
  --soft: rgba(196, 163, 100, 0.14);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(90deg, rgba(23, 21, 17, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23, 21, 17, 0.028) 1px, transparent 1px),
    var(--surface);
  background-size: 42px 42px;
  color: var(--text-primary);
  font-family: var(--font-body);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 48px 0;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 20px;
}

.theme-toggle {
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 38px;
  height: 38px;
  padding: 0;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  font: inherit;
  display: grid;
  place-items: center;
  position: fixed;
  top: 16px;
  right: 18px;
  z-index: 20;
  box-shadow: 0 10px 28px rgba(38, 31, 20, 0.12);
}

.theme-toggle:hover {
  border-color: var(--brand-secondary);
  color: var(--text-primary);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  display: block;
}

.site-main-narrow {
  width: min(820px, 94vw);
  margin: 20px auto 34px;
  display: grid;
  gap: 14px;
}

@media (max-width: 960px) {
  .site-header {
    padding: 20px 24px 0;
  }

  .theme-toggle {
    top: 12px;
    right: 12px;
  }
}