@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800&display=swap');

:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, sans-serif;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  color: var(--text);
}

/* Header */
header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 18px 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
}

header h1 {
  font-size: 22px;
  font-weight: 800;
}

nav a {
  margin-left: 30px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  color: var(--text);
}

/* Hero */
.hero {
  padding: 120px 60px 80px;
  max-width: 1200px;
}

.hero h2 {
  font-size: 48px;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  max-width: 640px;
  color: var(--muted);
}

/* Sections */
.section {
  padding: 80px 60px;
  max-width: 1200px;
}

.section h3 {
  font-size: 34px;
  margin-bottom: 40px;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 6px solid;
  padding: 28px;
  border-radius: 14px;
  transition: transform .4s ease, box-shadow .4s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0,0,0,.06);
}

.card h4 {
  margin-bottom: 10px;
}

.card p {
  color: var(--muted);
  font-size: 15px;
}

.card a {
  display: inline-block;
  margin-top: 12px;
  text-decoration: none;
  font-weight: 600;
  color: #2563eb;
}

/* Brand accents */
.indigo { border-color:#6366f1; }
.pink { border-color:#ec4899; }
.red { border-color:#ef4444; }
.orange { border-color:#f97316; }
.blue { border-color:#0ea5e9; }
.green { border-color:#22c55e; }
.purple { border-color:#a855f7; }

/* Footer */
footer {
  padding: 50px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
}