@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;600&display=swap');

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --bg-0: #05080f;
  --bg-1: #0a1018;
  --bg-2: #111a24;
  --bg-3: #182230;
  --bg-glass: rgba(17, 26, 36, 0.72);

  --border: rgba(148, 163, 184, 0.12);
  --border-strong: rgba(148, 163, 184, 0.22);

  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent: #10b981;
  --accent-2: #06b6d4;
  --accent-3: #8b5cf6;
  --accent-glow: rgba(16, 185, 129, 0.35);
  --gradient-brand: linear-gradient(135deg, #10b981 0%, #06b6d4 50%, #8b5cf6 100%);
  --gradient-surface: linear-gradient(180deg, rgba(16, 185, 129, 0.08) 0%, transparent 60%);

  --danger: #f87171;
  --warning: #fbbf24;
  --success: #34d399;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 60px rgba(16, 185, 129, 0.15);

  --nav-h: 72px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-0);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button, input, textarea {
  font: inherit;
}

.container {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 12px 32px rgba(16, 185, 129, 0.35);
}

.btn-secondary {
  background: var(--bg-glass);
  border-color: var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(16, 185, 129, 0.08);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 14px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 620px;
  line-height: 1.7;
}

.card-surface {
  background: linear-gradient(180deg, rgba(24, 34, 48, 0.9) 0%, rgba(17, 26, 36, 0.95) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .container {
    width: min(1200px, calc(100% - 32px));
  }
}