:root {
  --bg: #f6f8fb;
  --surface: rgba(255,255,255,0.72);
  --text: #111827;
  --muted: #6b7280;
  --line: rgba(17,24,39,0.08);
  --blue: #0a84ff;
  --orange: #ff9f0a;
  --shadow: 0 10px 30px rgba(17,24,39,0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --surface: rgba(17,24,39,0.72);
    --text: #f9fafb;
    --muted: #9ca3af;
    --line: rgba(255,255,255,0.08);
    --shadow: 0 10px 30px rgba(0,0,0,0.28);
  }
}

* { box-sizing: border-box; }
html { color-scheme: light dark; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(10,132,255,0.16), transparent 34%),
    radial-gradient(circle at top right, rgba(255,159,10,0.15), transparent 34%),
    var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.shell {
  width: min(720px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
}

.links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.links a {
  color: var(--muted);
}

.card {
  background: var(--surface);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.hero {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 20px;
  align-items: center;
}

.hero-logo {
  width: 88px;
  height: 88px;
  border-radius: 22px;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  margin: 0 0 10px;
}

h2 {
  font-size: 1rem;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.stack {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.mini {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.35);
  border: 1px solid var(--line);
}

@media (prefers-color-scheme: dark) {
  .mini { background: rgba(255,255,255,0.03); }
}

.mini strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.mini span {
  color: var(--muted);
  font-size: 0.95rem;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: -0.01em;
  border: 1px solid var(--line);
}

.button.primary {
  background: linear-gradient(135deg, var(--blue), var(--orange));
  color: white;
  border: none;
}

.section {
  padding: 24px 28px;
}

.list {
  display: grid;
  gap: 10px;
}

.list div {
  color: var(--muted);
}

.footer {
  padding-top: 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.note {
  font-size: 0.95rem;
}

.email {
  font-weight: 600;
  color: var(--text);
}

@media (max-width: 640px) {
  .hero {
    grid-template-columns: 1fr;
  }

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

  .card,
  .section {
    padding: 22px;
  }
}