:root {
  color-scheme: dark;
  --bg: #061d1b;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --text: #f3fff9;
  --muted: rgba(243, 255, 249, 0.72);
  --dim: rgba(243, 255, 249, 0.55);
  --accent: #97f5b6;
  --blue: #9fdfff;
  --gold: #ffd866;
  --line: rgba(255, 255, 255, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 22% 18%, rgba(151, 245, 182, 0.18), transparent 28rem),
    radial-gradient(circle at 78% 10%, rgba(159, 223, 255, 0.16), transparent 24rem),
    linear-gradient(145deg, #051615 0%, #0b3038 48%, #2d1c3d 100%);
  color: var(--text);
  font-family: ui-rounded, "SF Pro Rounded", "SF Pro Display", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.page {
  width: min(100%, 960px);
  margin: 0 auto;
  padding: 28px 22px 56px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 900;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  color: #08201f;
  font-weight: 1000;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  font-size: 0.95rem;
  font-weight: 800;
}

.hero {
  display: grid;
  gap: 20px;
  padding: 38px 0 28px;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(2.8rem, 8vw, 5.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(1.35rem, 4vw, 2rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

p {
  margin: 0 0 14px;
}

.lead {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.8vw, 1.28rem);
  font-weight: 650;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--accent);
  color: #08201f;
  font-weight: 950;
}

.button.secondary {
  background: var(--panel-strong);
  color: var(--text);
  border: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0;
}

.card,
.content-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.18);
}

.card {
  padding: 18px;
}

.card p,
.content-card p,
li {
  color: var(--muted);
}

.content-card {
  padding: 24px;
  margin: 18px 0;
}

.content-card ul {
  margin: 0;
  padding-left: 20px;
}

.callout {
  border-color: rgba(255, 216, 102, 0.35);
  background: rgba(255, 216, 102, 0.10);
}

.meta {
  color: var(--dim);
  font-size: 0.92rem;
  font-weight: 700;
}

.footer {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 0.92rem;
}

@media (max-width: 720px) {
  .page {
    padding-inline: 18px;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding-bottom: 22px;
  }

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

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