:root {
  color-scheme: light dark;
  --bg-top: #0d3f57;
  --bg-bottom: #1690a3;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-border: rgba(255, 255, 255, 0.28);
  --text: #11202a;
  --muted: #4f6170;
  --accent: #3b82f6;
  --accent-2: #a855f7;
  --line: rgba(17, 32, 42, 0.09);
  --pill: rgba(17, 32, 42, 0.06);
  --shadow: 0 20px 50px rgba(6, 18, 28, 0.18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-top: #071822;
    --bg-bottom: #103d5f;
    --panel: rgba(15, 22, 29, 0.82);
    --panel-border: rgba(255, 255, 255, 0.08);
    --text: #e8f0f7;
    --muted: #a8bac8;
    --accent: #6aa9ff;
    --accent-2: #c082ff;
    --line: rgba(255, 255, 255, 0.08);
    --pill: rgba(255, 255, 255, 0.06);
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100svh;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(30rem 30rem at 10% 12%, rgba(255,255,255,0.14), transparent 60%),
    radial-gradient(22rem 22rem at 86% 18%, rgba(168,85,247,0.2), transparent 55%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

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

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav a:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.45);
}

.shell {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 24px 18px 40px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  color: #fff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.18);
}

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

.nav a {
  color: #fff;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.92rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(14px);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 26px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 1rem;
}

.cta-row {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.65);
  color: var(--text);
  font-weight: 600;
}

.btn.primary {
  color: white;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.card-stack {
  display: grid;
  gap: 12px;
}

.mini-card {
  border-radius: 16px;
  border: 1px solid rgba(17, 32, 42, 0.14);
  background: rgba(255,255,255,0.86);
  padding: 14px;
  box-shadow: 0 8px 22px rgba(6, 18, 28, 0.06);
}

.mini-card h3 {
  margin: 0 0 6px;
  font-size: 0.95rem;
  color: var(--text);
}

.mini-card p {
  margin: 0;
  color: var(--text);
  opacity: 0.88;
  font-size: 0.92rem;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  .mini-card {
    background: rgba(12, 18, 24, 0.92);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
  }

  .mini-card p {
    color: #e8f0f7;
    opacity: 0.95;
  }
}

/* Hero-side feature tiles need stronger contrast on top of the gradient page background. */
.hero .mini-card {
  background: rgba(8, 15, 22, 0.88);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.hero .mini-card h3 {
  color: #f7fbff;
  font-weight: 700;
}

.hero .mini-card p {
  color: #d8e8f5;
  opacity: 1;
}

@media (prefers-color-scheme: dark) {
  .hero .mini-card {
    background: rgba(10, 16, 22, 0.94);
    border-color: rgba(255, 255, 255, 0.14);
  }

  .hero .mini-card h3 {
    color: #ffffff;
  }

  .hero .mini-card p {
    color: #e6f1fb;
  }
}

.support-cards .mini-card {
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(17, 32, 42, 0.14);
  box-shadow: 0 8px 22px rgba(6, 18, 28, 0.06);
}

.support-cards .mini-card h3 {
  color: var(--text);
  font-size: 1rem;
}

.support-cards .mini-card p {
  color: var(--text);
  opacity: 0.92;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  .support-cards .mini-card {
    background: rgba(12, 18, 24, 0.92);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
  }

  .support-cards .mini-card p {
    color: #e8f0f7;
    opacity: 0.95;
  }
}

.section {
  margin-top: 16px;
  padding: 22px;
}

.section h2 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.section p, .section li {
  color: var(--muted);
  line-height: 1.5;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.list {
  margin: 0;
  padding-left: 18px;
}

.note {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer {
  margin-top: 18px;
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--pill);
  border: 1px solid var(--line);
  font-size: 0.86rem;
  color: var(--muted);
}

@media (max-width: 760px) {
  .hero-grid,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 20px;
  }

  .section {
    padding: 18px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
}