/* =====================
   DESIGN TOKENS
===================== */
:root {
  --bg: #0f172a;
  --surface: #111827;
  --card: #1f2937;
  --text: #f9fafb;
  --muted: #9ca3af;
  --accent: #6366f1;
  --radius: 16px;
}

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

body {
  background: linear-gradient(135deg, #020617, #0f172a);
  color: var(--text);
  min-height: 100vh;
}

/* =====================
   HERO
===================== */
.hero {
  text-align: center;
  padding: 70px 20px 50px;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 12px;
}

.hero p {
  max-width: 640px;
  margin: auto;
  font-size: 16px;
  color: var(--muted);
}

/* =====================
   GRID
===================== */
.grid {
  max-width: 1100px;
  margin: auto;
  padding: 40px 20px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

/* =====================
   CARD
===================== */
.card {
  background: linear-gradient(180deg, var(--card), var(--surface));
  padding: 26px;
  border-radius: var(--radius);
  box-shadow: 0 25px 50px rgba(0,0,0,0.35);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
}

.card h2 {
  margin: 12px 0 8px;
}

.card p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* =====================
   TAG
===================== */
.tag {
  display: inline-block;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(99,102,241,0.15);
  color: var(--accent);
}

.tag.muted {
  background: rgba(255,255,255,0.1);
  color: var(--muted);
}

/* =====================
   BUTTON
===================== */
.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  font-size: 14px;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #4f46e5;
}

.disabled {
  opacity: 0.6;
}

.disabled-btn {
  background: #374151;
  cursor: not-allowed;
}

/* =====================
   FOOTER
===================== */
footer {
  text-align: center;
  padding: 25px;
  font-size: 14px;
  color: var(--muted);
}

/* :end */