:root {
  --color-bg: #FAF7F2;
  --color-surface: #FFFFFF;
  --color-ink: #0A1929;
  --color-body: #334155;
  --color-muted: #5B6778;
  --color-line: #E4DDD2;
  --color-amber: #A86A00;
  --color-soft: #F1ECE3;
  --icon-filter: none;

  --font-serif: 'Crimson Pro', Georgia, serif;
  --font-sans: Inter, system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  --page-gutter: 40px;
  --width-page: 1120px;
  --width-wide: 1200px;
  --width-medium: 1040px;
  --width-prose: 680px;

  --space-s: 40px;
  --space-m: 56px;
  --space-l: 88px;
  --space-xl: 112px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0C1622;
    --color-surface: #122030;
    --color-ink: #EEF1F4;
    --color-body: #B7C1CC;
    --color-muted: #8391A1;
    --color-line: #223246;
    --color-amber: #F2B544;
    --color-soft: #15263A;
    --icon-filter: invert(1);
    color-scheme: dark;
  }
}

@media (max-width: 768px) {
  :root {
    --page-gutter: 20px;
    --space-s: 28px;
    --space-m: 40px;
    --space-l: 56px;
    --space-xl: 72px;
  }
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

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

img {
  display: block;
  max-width: 100%;
}

picture {
  display: block;
}

button {
  font: inherit;
  color: inherit;
}

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

.page-width,
.wide-width,
.medium-width {
  margin: 0 auto;
  padding-left: var(--page-gutter);
  padding-right: var(--page-gutter);
}

.page-width {
  max-width: calc(var(--width-page) + 2 * var(--page-gutter));
}

.wide-width {
  max-width: calc(var(--width-wide) + 2 * var(--page-gutter));
}

.medium-width {
  max-width: calc(var(--width-medium) + 2 * var(--page-gutter));
}

.space-before-s { padding-top: var(--space-s); }
.space-before-m { padding-top: var(--space-m); }
.space-before-l { padding-top: var(--space-l); }
.space-before-xl { padding-top: var(--space-xl); }

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-top: 28px;
  padding-bottom: 28px;
}

.site-brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.site-brand-name {
  white-space: nowrap;
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.site-brand-path {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 15px;
  color: var(--color-body);
}

.site-nav a:hover {
  color: var(--color-ink);
}


@media (max-width: 640px) {
  .site-brand-path {
    display: none;
  }

  .site-nav {
    gap: 18px;
  }
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-amber);
}

.mono-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.underline-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  border-bottom: 1px solid var(--color-ink);
  padding-bottom: 3px;
}

.underline-link:hover {
  color: var(--color-amber);
  border-color: var(--color-amber);
}

.section-rule {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  border-top: 1px solid var(--color-ink);
  padding-top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.section-rule-title {
  font-size: inherit;
  font-weight: 500;
}

.section-rule-note {
  color: var(--color-muted);
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  background: var(--color-soft);
  font-size: 15px;
  font-weight: 500;
  transition: background-color 0.15s ease;
}

.button:hover {
  background: var(--color-line);
}

.button-compact {
  height: 40px;
  padding: 0 16px;
  font-size: 14px;
}

.button-primary {
  background: var(--color-ink);
  color: var(--color-bg);
}

.button-primary:hover {
  background: var(--color-body);
}

.button-on-soft {
  background: var(--color-surface);
}

.monochrome-icon {
  display: flex;
  filter: var(--icon-filter);
  opacity: 0.75;
}

.monochrome-icon img {
  width: 16px;
  height: 16px;
  filter: brightness(0);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.contact-section {
  padding-top: 136px;
  padding-bottom: 48px;
}

.contact-panel {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 32px 48px;
  border-top: 1px solid var(--color-ink);
  padding-top: 48px;
}

.contact-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 48px;
  line-height: 1.05;
  letter-spacing: -0.015em;
}

.contact-text {
  font-size: 17px;
  line-height: 1.55;
  color: var(--color-body);
  margin-top: 14px;
  max-width: 420px;
  text-wrap: pretty;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 80px;
  font-size: 13px;
  color: var(--color-muted);
}

.terminal-hint {
  font-family: var(--font-mono);
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
}

.terminal-hint:hover {
  color: var(--color-ink);
}

@media (max-width: 768px) {
  .contact-section {
    padding-top: var(--space-xl);
  }

  .contact-title {
    font-size: 40px;
  }

  .site-footer {
    margin-top: 56px;
  }
}