/* x402 Themed Edition - Dark Neon + Grotesk */

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

:root {
  --primary-color: #00e0b8;
  --primary-dark: #00b495;
  --secondary-color: #ff7a59;
  --accent-color: #7c5cff;
  --gradient-start: #0f0c29;
  --gradient-end: #302b63;

  --bg-primary: #0b0d12;
  --bg-secondary: #0f131a;
  --bg-dark: #07090d;
  --text-primary: #e8ecf1;
  --text-secondary: #9aa4b2;
  --text-light: #ffffff;

  --border-color: rgba(255,255,255,0.08);
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.25);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
}

body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', 'Helvetica Neue', Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, rgba(124,92,255,0.18), transparent 60%),
              radial-gradient(800px 500px at 120% 10%, rgba(0,224,184,0.12), transparent 60%),
              var(--bg-secondary);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* Navbar: centered, glassy */
.navbar {
  background: rgba(7,9,13,0.6);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border-color);
}
.nav-container { justify-content: center; gap: 2rem; }
.nav-brand { color: var(--text-light); }
.nav-link { color: var(--text-secondary); }
.nav-link:hover { color: var(--primary-color); }

/* Hero: left-aligned card in dark */
.hero {
  background: linear-gradient(135deg, rgba(15,12,41,0.9) 0%, rgba(48,43,99,0.9) 100%);
  text-align: left;
}
.hero-content { max-width: 1100px; display: grid; gap: 3rem; align-items: center; }
.hero-title { letter-spacing: -0.01em; }
.hero-main { }
.hero-side { align-self: stretch; display: flex; align-items: center; justify-content: center; }
.hero-panel { width: 100%; max-width: 420px; background: rgba(255,255,255,0.06); border: 1px solid var(--border-color); border-radius: 16px; box-shadow: var(--shadow-md); padding: 1.5rem; }
.hero-panel .stat-item { justify-content: flex-start; }

/* Support layout split variants used in HTML */
.layout-split { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 3rem; align-items: center; }
.sidebar-card { background: rgba(255,255,255,0.06); border: 1px solid var(--border-color); border-radius: 16px; box-shadow: var(--shadow-md); padding: 1.5rem; }
.gradient-text {
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* Cards */
.feature-card, .step {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.feature-card:hover, .step:hover { box-shadow: var(--shadow-md); border-color: rgba(124,92,255,0.5); }

/* Buttons: neon edges */
.cta-button.primary {
  background: #0e121a;
  color: var(--text-light);
  border: 1px solid rgba(124,92,255,0.4);
  box-shadow: 0 0 0 0 rgba(124,92,255,0.0);
}
.cta-button.primary:hover { box-shadow: 0 0 24px rgba(124,92,255,0.35); }

.cta-button.secondary {
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  color: #0b0d12;
  border: none;
}
.cta-button.secondary:hover { transform: translateY(-2px) scale(1.01); }

/* Footer */
.footer { background: radial-gradient(800px 300px at 80% -10%, rgba(0,224,184,0.15), transparent 60%), var(--bg-dark); }

/* Fancy step numbers */
.step-number { box-shadow: inset 0 0 16px rgba(0,224,184,0.25); }

/* Floating theme toggle */
.theme-toggle {
  position: fixed; right: 18px; bottom: 18px; z-index: 1200;
  width: 52px; height: 52px; border-radius: 50%; border: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  background: rgba(255,255,255,0.06); color: var(--text-light); box-shadow: var(--shadow-md);
}
.theme-toggle:hover { box-shadow: var(--shadow-lg); }

/* Optional: subtle parallax on hero */
[data-parallax] { will-change: transform; }

@media (max-width: 768px) {
  .nav-container { gap: 1rem; }
  .hero-content { display: block; }
  .hero-side { margin-top: 1.5rem; }
  .layout-split { display: block; }
}

/* Split layouts for repositioning content */
.layout-split {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2.5rem;
  align-items: center;
}
.hero .layout-split { max-width: 1100px; margin: 0 auto; }
.hero-side .feature-card { margin: 0; }
.sidebar-card {
  padding: 1.75rem;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.hero-side .hero-stats { justify-content: flex-start; gap: 1.25rem; }

@media (max-width: 980px) {
  .layout-split { grid-template-columns: 1fr; }
}