:root {
  --card-bg: var(--rtk-surface, #fff);
  --ink: var(--rtk-ink, #1e293b);
  --muted: var(--rtk-muted, #475569);
  --border: var(--rtk-border, #e2e8f0);
  --accent: var(--rtk-primary, #00c2cb);
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: radial-gradient(1200px circle at 10% 20%, rgba(0, 194, 203, 0.1), transparent 45%),
    radial-gradient(800px circle at 85% 10%, rgba(139, 195, 74, 0.1), transparent 40%),
    #f8fafc;
  color: var(--ink);
  min-height: 100vh;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px) saturate(1.1);
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.brand .logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #00c2cb, #8bc34a);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 10px 20px rgba(0, 194, 203, 0.35);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px clamp(14px, 3vw, 26px) 60px;
}

.hero {
  background: linear-gradient(135deg, rgba(0, 194, 203, 0.12), rgba(139, 195, 74, 0.12));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(1.4rem, 2vw + 1rem, 2rem);
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 194, 203, 0.35);
  box-shadow: 0 22px 42px rgba(0, 0, 0, 0.12);
}

.card .icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(0, 194, 203, 0.15), rgba(0, 194, 203, 0.08));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 20px;
}

.card h2 {
  margin: 0;
  font-size: 1.05rem;
}

.card p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.4;
  font-size: 0.95rem;
}

.links-row {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}

.links-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
}