:root {
  --bg: #f5fafc;
  --surface: #ffffff;
  --ink: #102535;
  --muted: #35546b;
  --line: #d6e5ee;
  --accent: #0f766e;
  --accent-2: #124e78;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(12, 36, 52, 0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: radial-gradient(80rem 80rem at 0% -20%, #dff5f1 0%, transparent 30%), var(--bg);
  line-height: 1.6;
}

a { color: var(--accent-2); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid #1d4ed8;
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  background: #fff;
  border: 2px solid #1d4ed8;
  padding: 0.7rem 1rem;
  border-radius: 8px;
  text-decoration: none;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245, 250, 252, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.nav-shell {
  min-height: 72px;
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 0.8rem;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), #38b2ac);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
}

.menu-toggle {
  display: none;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  font: inherit;
}

.primary-nav {
  display: inline-flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.primary-nav a {
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.8rem;
  border-radius: 10px;
  color: var(--ink);
}

.btn {
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  padding: 0.6rem 0.95rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff !important;
}

.btn-secondary {
  border-color: var(--line);
  background: #fff;
}

.section { padding: 2.25rem 0; }
.section-soft { background: #eff8fb; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 1rem;
}

.hero-grid article, .hero-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.2rem;
}

.app-icon {
  width: 96px !important;
  max-width: 96px !important;
  height: auto !important;
  max-height: 96px !important;
  aspect-ratio: 1 / 1;
  border-radius: 24px;
  display: block;
  margin-bottom: 0.8rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

.eyebrow {
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-family: "IBM Plex Mono", monospace;
}

h1, h2, h3 {
  margin-top: 0;
  line-height: 1.2;
  font-family: "Source Serif 4", serif;
}

h1 { font-size: clamp(1.7rem, 3.6vw, 2.8rem); }
h2 { font-size: clamp(1.3rem, 2.5vw, 2rem); margin-bottom: 0.7rem; }
h3 { font-size: 1.08rem; margin-bottom: 0.4rem; }

p { margin: 0.5rem 0; }
ul { margin: 0.4rem 0 0.2rem 1.1rem; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.9rem;
}

.app-id {
  margin-top: 0.7rem;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.summary { font-weight: 700; }

.legal-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 0.7rem;
  box-shadow: var(--shadow);
}

.legal-block summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  cursor: pointer;
  font-weight: 700;
  padding: 0.8rem 1rem;
}

.legal-content {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--line);
}

.contact-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.2rem 0 2rem;
  color: var(--muted);
}

@media (max-width: 940px) {
  .hero-grid, .card-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .menu-toggle { display: inline-flex; }
  .nav-shell { grid-template-columns: auto auto; }
  .primary-nav {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 0.4rem;
    margin-bottom: 0.6rem;
  }
  .primary-nav.open { display: flex; }
  .hero-grid, .card-grid { grid-template-columns: 1fr; }
}