:root {
  --bg: #0f1117;
  --bg-2: #151a22;
  --accent: #f59e0b;
  --accent-2: #10b981;
  --text: #f8fafc;
  --muted: #94a3b8;
  --card: #111827;
  --border: #1f2937;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 700px at 15% -10%, #1f2937 0%, transparent 60%),
              radial-gradient(1000px 600px at 90% 0%, #0b1324 0%, transparent 55%),
              var(--bg);
}

header {
  padding: 32px 40px 20px 40px;
}

h1 {
  font-family: "Playfair Display", serif;
  font-size: 36px;
  margin: 0 0 8px 0;
  letter-spacing: 0.5px;
}

.subtitle {
  color: var(--muted);
  max-width: 720px;
}

main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  padding: 0 40px 40px 40px;
}

.card {
  background: linear-gradient(180deg, rgba(17,24,39,0.95), rgba(15,23,42,0.95));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  min-height: 200px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}

.card h2 {
  margin: 0 0 12px 0;
  font-size: 18px;
  letter-spacing: 0.3px;
}

input, button, select {
  font-family: "Space Grotesk", sans-serif;
}

input, select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
  margin-bottom: 10px;
}

button {
  background: var(--accent);
  border: none;
  color: #0b1220;
  font-weight: 700;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
}

button.secondary {
  background: var(--accent-2);
}

pre {
  background: #0b1220;
  border-radius: 10px;
  padding: 12px;
  color: #e2e8f0;
  overflow-x: auto;
  border: 1px solid var(--border);
  max-height: 240px;
}

small {
  color: var(--muted);
}

@media (max-width: 700px) {
  header, main { padding: 20px; }
  h1 { font-size: 28px; }
}