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

:root {
  /* Palette: Lean Light / Editorial / Indigo Accent */
  --c-bg: #fcfcfd;
  --c-surface: #ffffff;
  --c-surface-alt: #f4f5f7;
  --c-border: #e4e6eb;
  --c-border-hover: #d1d4db;
  --c-text-main: #1e2128;
  --c-text-muted: #6b7280;
  --c-text-faint: #9ca3af;
  --c-accent: #4338ca; /* Deep Indigo */
  --c-accent-hover: #3730a3;
  --c-accent-subtle: #eef2ff;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing Scale */
  --sp-xs: 0.5rem;
  --sp-sm: 1rem;
  --sp-md: 2rem;
  --sp-lg: 4rem;
  --sp-xl: 8rem;
  
  /* Layout */
  --w-container: 1200px;
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--c-bg);
  color: var(--c-text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--c-text-main);
  margin-bottom: var(--sp-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.125rem; }

p {
  margin-bottom: var(--sp-sm);
  max-width: 70ch;
  color: var(--c-text-muted);
}

a {
  color: var(--c-text-main);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--c-accent);
}

ul, ol {
  list-style: none;
  padding: 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--r-md);
}

code, pre, .mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--w-container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

.text-center { text-align: center; }
.text-accent { color: var(--c-accent); }
.mono-sm { font-family: var(--font-mono); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--c-text-faint); }

/* Components: Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--r-sm);
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--c-text-main);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--c-accent);
  transform: translateY(-1px);
  color: #fff;
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--c-border);
  color: var(--c-text-main);
}

.btn-secondary:hover {
  border-color: var(--c-text-main);
  background-color: var(--c-surface);
}

/* Layout: Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(252, 252, 253, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  padding: 1rem 0;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-mark {
  width: 24px;
  height: 24px;
  background: var(--c-text-main);
  border-radius: 4px;
}

.nav-list {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: var(--c-text-main);
}

.nav-cta {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Mobile Nav Toggle (Simplified) */
.nav-toggle { display: none; }

@media (max-width: 768px) {
  .nav-list {
    display: none; /* In real production, add JS for toggle */
  }
  .nav-toggle { display: block; }
}

/* Component: Hero */
.hero-section {
  padding: var(--sp-xl) 0;
  border-bottom: 1px solid var(--c-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero-eyebrow {
  margin-bottom: 1rem;
  display: block;
}

.hero-title {
  margin-bottom: 1.5rem;
  color: var(--c-text-main);
}

.hero-subtitle {
  font-size: 1.125rem;
  margin-bottom: 2.5rem;
  color: var(--c-text-muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.hero-visual {
  background: var(--c-surface-alt);
  border-radius: var(--r-lg);
  border: 1px solid var(--c-border);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.05);
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-content {
    max-width: 100%;
    text-align: center;
    margin: 0 auto;
  }
  .hero-actions {
    justify-content: center;
  }
}

/* Component: Feature Grid */
.feature-section {
  padding: var(--sp-xl) 0;
}

.section-header {
  margin-bottom: 4rem;
  max-width: 600px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 2rem;
  border-radius: var(--r-md);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px -8px rgba(0,0,0,0.08);
  border-color: var(--c-border-hover);
}

.card-icon {
  width: 40px;
  height: 40px;
  background: var(--c-accent-subtle);
  color: var(--c-accent);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

/* Component: Stats */
.stats-section {
  background: var(--c-text-main);
  color: #fff;
  padding: var(--sp-lg) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
  display: block;
}

.stat-label {
  color: #9ca3af;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 600px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* Component: FAQ */
.faq-section {
  padding: var(--sp-xl) 0;
  background-color: var(--c-surface-alt);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--c-border);
  padding: 1.5rem 0;
}

.faq-item:first-child { border-top: 1px solid var(--c-border); }

.faq-question {
  font-weight: 600;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.faq-answer {
  color: var(--c-text-muted);
  font-size: 1rem;
  padding-right: 2rem;
}

/* Component: CTA Band */
.cta-section {
  padding: var(--sp-xl) 0;
}

.cta-box {
  background: var(--c-accent);
  color: #fff;
  padding: 4rem;
  border-radius: var(--r-lg);
  text-align: center;
}

.cta-title {
  color: #fff;
  margin-bottom: 1rem;
}

.cta-text {
  color: rgba(255,255,255,0.8);
  margin: 0 auto 2rem auto;
}

.btn-white {
  background: #fff;
  color: var(--c-accent);
}
.btn-white:hover {
  background: #f0f0f0;
  color: var(--c-accent);
}

/* Layout: Footer */
.site-footer {
  border-top: 1px solid var(--c-border);
  padding: var(--sp-lg) 0;
  background: var(--c-surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
}

.footer-col h5 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-text-faint);
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--c-text-main);
  font-size: 0.95rem;
}

.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--c-text-faint);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
  }
}img,svg,video{max-width:100%;height:auto}body{margin:0}*{box-sizing:border-box}