@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Palette: Light Theme, Anthracite, Cyan, Violet */
  --hue-primary: 126;
  --hue-accent: 270;
  
  --bg-body: #F2F4F6;
  --bg-surface: #FFFFFF;
  --bg-surface-alt: #EBEEF0;
  
  --text-main: #1A1D23;
  --text-muted: #586271;
  --text-inverse: #FFFFFF;
  
  --color-cyan: #00D2A6;
  --color-cyan-light: #E6F9F2;
  --color-violet: #7B61FF;
  --color-violet-light: #F0EDFF;
  --color-anthracite: #2B2E35;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 24px;
  
  --shadow-sm: 0 2px 4px rgba(26, 29, 35, 0.04);
  --shadow-md: 0 8px 24px rgba(26, 29, 35, 0.06);
  --shadow-glow: 0 0 20px rgba(0, 210, 166, 0.15);
  
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --container-width: 1280px;
  --header-height: 80px;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem); margin-bottom: 1.5rem; }
h2 { font-size: clamp(2rem, 4vw + 1rem, 3rem); margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
p { margin-bottom: 1.5rem; color: var(--text-muted); max-width: 65ch; }
a { text-decoration: none; color: inherit; transition: 0.2s ease; }
strong { font-weight: 600; color: var(--text-main); }

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.text-cyan { color: var(--color-cyan); }
.text-violet { color: var(--color-violet); }

/* Header & Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(242, 244, 246, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  z-index: 1000;
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}
.brand-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.brand-logo svg { height: 32px; width: 32px; fill: var(--color-cyan); }

.main-nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}
.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}
.nav-link:hover { color: var(--text-main); }
.nav-cta {
  background: var(--text-main);
  color: #fff !important;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
}
.nav-cta:hover { background: var(--color-violet); }

/* Mobile Menu Trigger (Hidden on Desktop) */
.menu-toggle { display: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}
.btn-primary {
  background: var(--text-main);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  background: var(--color-violet);
}
.btn-secondary {
  background: transparent;
  border: 1px solid rgba(26, 29, 35, 0.2);
  color: var(--text-main);
}
.btn-secondary:hover {
  border-color: var(--text-main);
  background: var(--bg-surface);
}

/* Hero Section */
.hero-section {
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
  background: radial-gradient(circle at 80% 20%, var(--color-cyan-light) 0%, transparent 40%),
              radial-gradient(circle at 20% 80%, var(--color-violet-light) 0%, transparent 40%);
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}
.hero-content .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-violet);
  margin-bottom: 1rem;
  display: block;
  font-weight: 700;
}
.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4/3;
}
.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Features & Cards */
.features-section { padding: 6rem 0; background: var(--bg-surface); }
.card {
  background: var(--bg-body);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: 0.3s ease;
}
.card:hover {
  border-color: var(--color-cyan);
  transform: translateY(-4px);
  background: #fff;
  box-shadow: var(--shadow-md);
}
.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-cyan-light);
  color: var(--color-cyan);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

/* Stats */
.stats-section { padding: 4rem 0; }
.stat-item { text-align: center; }
.stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-main), var(--color-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-bottom: 0.5rem;
}
.stat-label { font-size: 0.9rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* CTA Band */
.cta-section { padding: 6rem 0; }
.cta-box {
  background: var(--text-main);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box h2 { color: #fff; margin-bottom: 1rem; }
.cta-box p { color: rgba(255,255,255,0.7); margin: 0 auto 2rem; }
.cta-box .btn-primary { background: var(--color-cyan); color: var(--text-main); }

/* FAQ */
.faq-section { padding: 6rem 0; background: var(--bg-surface); }
.faq-item { border-bottom: 1px solid var(--bg-surface-alt); padding: 1.5rem 0; }
.faq-question {
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-answer {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  background: var(--bg-surface);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--bg-surface-alt);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}
.footer-col h4 { margin-bottom: 1.5rem; font-size: 1rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.75rem; }
.footer-col a:hover { color: var(--color-cyan); }
.footer-bottom {
  border-top: 1px solid var(--bg-surface-alt);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .header-inner { padding-right: 0; }
  .main-nav { display: none; } /* Simplified for this demo */
  .menu-toggle { display: block; font-size: 1.5rem; cursor: pointer; }
  .hero-grid, .grid-2, .grid-3, .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-section { text-align: center; padding-top: 8rem; }
  .hero-image-wrapper { order: -1; }
  .container { padding: 0 1.5rem; }
}*{box-sizing:border-box}img,svg,video{max-width:100%;height:auto}