:root {
  color-scheme: dark;
  --bg: #071018;
  --bg-deep: #03070c;
  --surface: rgba(11, 24, 35, 0.88);
  --surface-strong: rgba(17, 32, 46, 0.96);
  --border: rgba(112, 184, 220, 0.18);
  --border-strong: rgba(112, 184, 220, 0.3);
  --text: #edf6fb;
  --text-soft: #bdd0db;
  --text-muted: #8fa7b6;
  --accent: #57d7e3;
  --accent-deep: #0f7f9a;
  --warn: #f5c37a;
  --shadow: 0 28px 60px rgba(0, 0, 0, 0.35);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(87, 215, 227, 0.14), transparent 24rem),
    radial-gradient(circle at bottom right, rgba(42, 76, 106, 0.26), transparent 30rem),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family:
    "Iowan Old Style",
    "Palatino Linotype",
    "Book Antiqua",
    Palatino,
    Georgia,
    serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.page {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: calc(1.35rem + env(safe-area-inset-top)) 0 3rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0 1.2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.95rem;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(87, 215, 227, 0.95), rgba(24, 133, 169, 0.92));
  color: #062233;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 12px 30px rgba(19, 126, 152, 0.28);
}

.brand-copy {
  display: grid;
  gap: 0.15rem;
}

.brand-copy strong {
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.brand-copy span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: flex-end;
}

.nav a {
  text-decoration: none;
  color: var(--text-soft);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 999px;
  padding: 0.58rem 0.9rem;
  font-size: 0.92rem;
}

.nav a.active,
.nav a:hover,
.nav a:focus-visible {
  border-color: var(--border-strong);
  color: var(--text);
  background: rgba(87, 215, 227, 0.08);
  outline: none;
}

.hero {
  padding: 2.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(160deg, rgba(10, 21, 32, 0.9), rgba(6, 12, 20, 0.96)),
    rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -4rem -5rem auto;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(87, 215, 227, 0.2), transparent 68%);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
  font-weight: 700;
}

.hero h1,
.content h1 {
  margin: 0;
  font-family:
    "Avenir Next Condensed",
    "Arial Narrow",
    "Helvetica Neue",
    sans-serif;
  font-weight: 750;
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  max-width: 10.5ch;
}

.hero .lede {
  margin: 1rem 0 0;
  max-width: 40rem;
  color: var(--text-soft);
  font-size: 1.04rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(16rem, 0.9fr);
  gap: 1.1rem;
  margin-top: 1.8rem;
}

.panel,
.content,
.footer-note {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(10px);
}

.panel {
  padding: 1.2rem;
}

.panel h2 {
  margin: 0 0 0.55rem;
  font-size: 1.02rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.panel p,
.panel li,
.content p,
.content li,
.footer-note p {
  color: var(--text-soft);
}

.panel ul,
.content ul {
  margin: 0.75rem 0 0;
  padding-left: 1.2rem;
}

.content {
  margin-top: 1.1rem;
  padding: 1.6rem;
}

.content h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.content h2 {
  margin: 1.5rem 0 0.55rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 1.04rem;
}

.keyline {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.keyline::before {
  content: "";
  width: 1.8rem;
  height: 1px;
  background: currentColor;
  opacity: 0.65;
}

.notice {
  margin-top: 1rem;
  padding: 0.95rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(245, 195, 122, 0.08);
  border: 1px solid rgba(245, 195, 122, 0.24);
  color: #f7d39a;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.95rem;
  margin-top: 1.3rem;
}

.tile {
  display: grid;
  gap: 0.55rem;
  padding: 1.1rem;
  text-decoration: none;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.tile strong {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 1.04rem;
}

.tile span {
  color: var(--text-soft);
}

.tile:hover,
.tile:focus-visible {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  background: var(--surface-strong);
  outline: none;
}

.footer-note {
  margin-top: 1.1rem;
  padding: 1rem 1.1rem;
}

.footer-note p {
  margin: 0;
  font-size: 0.94rem;
}

@media (max-width: 860px) {
  .topbar,
  .hero-grid,
  .link-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .topbar {
    justify-content: stretch;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero,
  .content {
    padding: 1.4rem;
  }

  .hero h1 {
    font-size: clamp(2.1rem, 12vw, 3.4rem);
    max-width: 11ch;
  }

  .content h1 {
    font-size: clamp(1.8rem, 9vw, 2.4rem);
  }
}

@media (max-width: 520px) {
  .page {
    width: min(calc(100% - 1rem), var(--max));
    padding-top: calc(1rem + env(safe-area-inset-top));
  }

  .topbar {
    padding: 0.55rem 0 0.9rem;
  }

  .hero {
    padding: 1.2rem;
  }

  .hero h1 {
    font-size: clamp(1.9rem, 11vw, 2.9rem);
    max-width: 100%;
  }

  .hero .lede,
  .content,
  .footer-note {
    font-size: 0.98rem;
  }
}