:root {
  --page-bg: #efe8df;
  --page-bg-alt: linear-gradient(135deg, #f7efe8, #efe3d8);
  --surface: rgba(255, 255, 255, 0.82);
  --surface-soft: #fff8ee;
  --surface-strong: rgba(255, 255, 255, 0.92);
  --border: #e2d2c3;
  --border-strong: #d9c8b8;
  --text: #3f2f24;
  --muted: #6b5545;
  --muted-soft: #8f7a68;
  --button-bg: #3f2f24;
  --button-bg-hover: #4b382b;
  --button-text: #f8f2ec;
  --icon-bg-hover: rgba(255, 255, 255, 0.45);
  --chip-bg: rgba(255, 255, 255, 0.75);
  --success-bg: #f3faf6;
  --success-border: #cde7d5;
  --success-text: #27553b;
}

body[data-theme="dark"] {
  --page-bg: #1b1715;
  --page-bg-alt: linear-gradient(135deg, #221c19, #171311);
  --surface: rgba(37, 30, 27, 0.86);
  --surface-soft: #2a221f;
  --surface-strong: rgba(46, 38, 34, 0.94);
  --border: #4e4138;
  --border-strong: #5a4b41;
  --text: #f4e9df;
  --muted: #c3ad99;
  --muted-soft: #b69985;
  --button-bg: #f1e4d7;
  --button-bg-hover: #e4d0bf;
  --button-text: #241d19;
  --icon-bg-hover: rgba(255, 255, 255, 0.08);
  --chip-bg: rgba(255, 255, 255, 0.06);
  --success-bg: rgba(46, 139, 87, 0.12);
  --success-border: rgba(95, 175, 120, 0.4);
  --success-text: #bfe0c7;
}

body {
  background: var(--page-bg-alt);
  color: var(--text);
}

.site-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 20px 0;
}

.site-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding-bottom: 14px;
}

.site-header .brand {
  text-decoration: none;
  color: var(--text);
  font-family: Georgia, serif;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  justify-self: start;
}

.site-header .brand-mark {
  position: relative;
  width: 36px;
  height: 26px;
  display: inline-block;
}

.site-header .brand-mark span {
  position: absolute;
  top: 0;
  width: 22px;
  height: 22px;
  border: 1.7px solid currentColor;
  border-radius: 999px;
}

.site-header .brand-mark span:first-child {
  left: 0;
}

.site-header .brand-mark span:last-child {
  left: 13px;
}

.top-nav {
  justify-self: center;
}

.top-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 20px;
}

.top-nav li {
  position: relative;
}

.top-nav li + li::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 50%;
  width: 4px;
  height: 4px;
  margin-top: -2px;
  border-radius: 999px;
  background: var(--border-strong);
}

.top-nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 7px 10px 10px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  transition: color 160ms ease, background 160ms ease, transform 160ms ease;
}

.top-nav a:hover,
.top-nav a:focus-visible,
.top-nav a.is-active {
  color: var(--text);
  background: var(--surface);
  transform: translateY(-1px);
}

.theme-switch {
  justify-self: end;
}

.theme-toggle {
  min-width: 90px;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.04em;
  box-shadow: 0 6px 18px rgba(38, 26, 18, 0.06);
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease, color 160ms ease;
}

.theme-toggle .theme-icon {
  font-size: 16px;
  line-height: 1;
}

.theme-toggle .theme-label {
  font-size: 12px;
  text-transform: uppercase;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.theme-toggle.is-active {
  border-color: var(--border-strong);
}

.site-footer {
  margin-top: 18px;
  padding: 16px 0 8px;
  border-top: 1px solid var(--border-strong);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer .footer-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.site-footer .footer-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.site-footer .footer-nav a {
  text-decoration: none;
  padding: 0;
  font-size: 12px;
  color: var(--muted);
}

.site-footer .footer-nav a:hover {
  text-decoration: underline;
}

.site-footer .social {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.site-footer .social a {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--text);
  text-decoration: none;
}

.site-footer .social a:hover {
  background: var(--icon-bg-hover);
}

.site-footer .social svg {
  width: 17px;
  height: 17px;
  display: block;
}

@media (max-width: 980px) {
  .site-shell {
    padding-top: 16px;
  }

  .site-header {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .site-header .brand {
    justify-self: start;
  }

  .top-nav ul {
    gap: 8px 14px;
  }

  .top-nav li + li::before {
    display: none;
  }

  .theme-switch {
    justify-self: center;
  }
}