:root {
  --bg: #f2f6f9;
  --bg-deep: #e3edf4;
  --bg-top: #ffffff;
  --bg-sheen: rgba(214, 231, 245, 0.7);
  --header: rgba(242, 246, 249, 0.85);
  --ink: #1a2026;
  --muted: #5b6a76;
  --accent: #3b6f8c;
  --accent-soft: #e3eff6;
  --card: rgba(255, 255, 255, 0.92);
  --border: #cfdbe5;
  --glow-1: rgba(59, 111, 140, 0.18);
  --glow-2: rgba(26, 32, 38, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f151b;
    --bg-deep: #0b1116;
    --bg-top: #16212b;
    --bg-sheen: rgba(28, 44, 58, 0.7);
    --header: rgba(12, 18, 23, 0.82);
    --ink: #eef4f8;
    --muted: #a8b6c3;
    --accent: #78a9c9;
    --accent-soft: rgba(120, 169, 201, 0.16);
    --card: rgba(15, 21, 27, 0.9);
    --border: #2b3944;
    --glow-1: rgba(90, 140, 172, 0.24);
    --glow-2: rgba(17, 23, 29, 0.55);
  }
}

html[data-theme="light"] {
  --bg: #f2f6f9;
  --bg-deep: #e3edf4;
  --bg-top: #ffffff;
  --bg-sheen: rgba(214, 231, 245, 0.7);
  --header: rgba(242, 246, 249, 0.85);
  --ink: #1a2026;
  --muted: #5b6a76;
  --accent: #3b6f8c;
  --accent-soft: #e3eff6;
  --card: rgba(255, 255, 255, 0.92);
  --border: #cfdbe5;
  --glow-1: rgba(59, 111, 140, 0.18);
  --glow-2: rgba(26, 32, 38, 0.08);
}

html[data-theme="dark"] {
  --bg: #0f151b;
  --bg-deep: #0b1116;
  --bg-top: #16212b;
  --bg-sheen: rgba(28, 44, 58, 0.7);
  --header: rgba(12, 18, 23, 0.82);
  --ink: #eef4f8;
  --muted: #a8b6c3;
  --accent: #78a9c9;
  --accent-soft: rgba(120, 169, 201, 0.16);
  --card: rgba(15, 21, 27, 0.9);
  --border: #2b3944;
  --glow-1: rgba(90, 140, 172, 0.24);
  --glow-2: rgba(17, 23, 29, 0.55);
}

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

body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", "Palatino", "Garamond", serif;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  z-index: 5;
}

.skip-link:focus-visible {
  left: 12px;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: var(--header);
  border-bottom: 1px solid var(--border);
  z-index: 2;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--accent-soft);
  color: var(--ink);
  line-height: 0;
}

.brand-mark svg {
  width: 32px;
  height: 32px;
  display: block;
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

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

.theme-icon {
  display: none;
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle .theme-icon-moon svg {
  fill: currentColor;
  stroke: none;
}

html[data-theme="light"] .theme-icon-moon,
html[data-theme="dark"] .theme-icon-sun {
  display: inline-flex;
}

.page {
  padding: 64px 0 72px;
}

.hero {
  max-width: 720px;
  margin: 0 auto 48px;
  padding: 0 24px;
}

.eyebrow {
  font-family: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--muted);
  margin: 0 0 10px 0;
}

.hero h1 {
  margin: 0 0 14px 0;
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  letter-spacing: -0.02em;
}

.lead {
  font-size: 1.2rem;
  color: var(--muted);
  margin: 0 0 24px 0;
  line-height: 1.7;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 18px 40px rgba(18, 28, 36, 0.12);
  backdrop-filter: blur(4px);
}

.card h2 {
  margin-top: 0;
  font-size: 1.3rem;
}

.card p {
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  padding: 36px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .wrap {
  display: flex;
  justify-content: center;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  animation: rise 0.7s ease forwards;
  animation-delay: var(--delay, 0ms);
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 720px) {
  .site-header .wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-actions {
    width: 100%;
    justify-content: space-between;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 0 20px;
  }
}