/* ==============================
   DESIGN SYSTEM
================================ */
:root {
  --primary: #2563eb;
  --dark: #020617;
  --navy: #0f172a;
  --text-main: #1f2937;
  --text-muted: #64748b;
  --bg-light: #f8fafc;
  --border-soft: #e5e7eb;
  --radius: 14px;
  --shadow-soft: 0 8px 30px rgba(0,0,0,0.06);
  --shadow-hover: 0 20px 50px rgba(0,0,0,0.12);
}

/* ==============================
   RESET
================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background: #ffffff;
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
}

/* ==============================
   GLOBAL
================================ */
.container {
  max-width: 1200px;
  margin: auto;
  padding: 80px 20px;
}

.section {
  padding: 120px 0;
}

.light-bg {
  background: var(--bg-light);
}

h1, h2, h3 {
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.5px;
}

h1 { font-size: 52px; }
h2 { font-size: 40px; margin-bottom: 25px; }
h3 { font-size: 22px; }

p {
  color: var(--text-muted);
  font-size: 17px;
  max-width: 900px;
}

/* ==============================
   HERO
================================ */
.hero {
  background: linear-gradient(135deg, #020617, #0f172a);
  color: white;
  padding: 160px 20px;
  text-align: center;
}

.hero h1 {
  color: white;
}

.subtitle {
  font-size: 22px;
  margin: 15px 0;
  color: #c7d2fe;
  font-weight: 500;
}

.description {
  max-width: 780px;
  margin: 30px auto;
  color: #e5e7eb;
}

.btn-primary {
  display: inline-block;
  margin-top: 40px;
  padding: 14px 36px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 700;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  padding: 14px 36px;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: var(--primary);
  color: white;
}

/* ==============================
   GRID & CARDS
================================ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 35px;
  margin-top: 60px;
}

.card {
  background: white;
  padding: 35px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: all 0.35s ease;
  border: 1px solid var(--border-soft);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

/* ==============================
   LIST
================================ */
.list {
  list-style: none;
  margin-top: 40px;
  max-width: 900px;
}

.list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-muted);
}

/* ==============================
   CTA
================================ */
.cta {
  background: linear-gradient(135deg, #020617, #0f172a);
  color: white;
  text-align: center;
  padding: 140px 20px;
}

.cta h2 {
  color: white;
}

.cta p {
  color: #cbd5f5;
  margin: 25px 0;
}

.cta-buttons a {
  margin: 15px;
}

/* ==============================
   FOOTER
================================ */
footer {
  background: #020617;
  color: #9ca3af;
  text-align: center;
  padding: 40px 20px;
  font-size: 14px;
}

/* ==============================
   RESPONSIVE
================================ */
@media (max-width: 768px) {
  h1 { font-size: 42px; }
  h2 { font-size: 32px; }

  .hero {
    padding: 120px 20px;
  }

  .section {
    padding: 80px 0;
  }
}