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

:root {
  /* Palette: Dark Mode Base */
  --hue-primary: 252;
  --bg-body: #0B0D17;
  --bg-surface: #15192B;
  --bg-surface-2: #1E2440;
  --text-main: #F4F7FE;
  --text-muted: #9CA3C7;
  
  /* Accent Colors */
  --accent-primary: hsl(var(--hue-primary), 100%, 65%);
  --accent-glow: hsla(var(--hue-primary), 100%, 65%, 0.4);
  --accent-coral: #FF6B6B;
  --accent-lime: #C4F500;
  --accent-yellow: #F9D56E;
  
  /* Typography */
  --font-sans: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  
  /* Spacing Scale */
  --sp-xs: clamp(0.5rem, 0.5rem + 0.5vw, 0.75rem);
  --sp-sm: clamp(0.75rem, 0.75rem + 0.5vw, 1rem);
  --sp-md: clamp(1rem, 1rem + 1vw, 1.5rem);
  --sp-lg: clamp(1.5rem, 1.5rem + 2vw, 3rem);
  --sp-xl: clamp(3rem, 3rem + 4vw, 6rem);
  
  /* Layout */
  --container-width: 1280px;
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --nav-height: 80px;
}

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

img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
a { text-decoration: none; color: inherit; transition: 0.3s ease; }
ul, ol { list-style: none; }

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-inline: var(--sp-md);
}

.text-gradient {
  background: linear-gradient(135deg, var(--text-main) 30%, var(--accent-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-main);
  line-height: 1.1;
  font-weight: 700;
  margin-bottom: var(--sp-sm);
}

h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 3vw + 1rem, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw + 0.5rem, 1.5rem); }
p { margin-bottom: var(--sp-md); color: var(--text-muted); font-size: 1.05rem; }
.lead { font-size: clamp(1.1rem, 1.5vw, 1.25rem); font-weight: 500; color: var(--text-main); opacity: 0.9; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8em 1.8em;
  border-radius: var(--border-radius-sm);
  font-weight: 700;
  font-family: var(--font-display);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--accent-primary);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.2);
  color: var(--text-main);
}
.btn-outline:hover {
  border-color: var(--text-main);
  background: rgba(255,255,255,0.05);
}

/* Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(11, 13, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.logo-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-lime));
  border-radius: 8px;
  transform: rotate(-10deg);
}

.nav-links {
  display: flex;
  gap: var(--sp-md);
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.nav-link:hover { color: var(--text-main); }

/* Mobile Nav Toggle (Hidden on Desktop) */
.nav-toggle { display: none; background: none; border: none; color: var(--text-main); font-size: 1.5rem; }

/* Components: Hero */
.hero-section {
  padding-block: var(--sp-xl) var(--sp-lg);
  position: relative;
  overflow: hidden;
}
/* Decorative blobs */
.hero-bg-blob {
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, rgba(0,0,0,0) 70%);
  top: -200px; right: -200px;
  z-index: 0;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-lg);
  position: relative;
  z-index: 1;
  text-align: center;
}
.hero-content { display: flex; flex-direction: column; align-items: center; }
.hero-tags {
  display: inline-block;
  background: rgba(255,255,255,0.05);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: var(--sp-sm);
  border: 1px solid rgba(255,255,255,0.1);
}
.hero-actions {
  display: flex;
  gap: var(--sp-sm);
  margin-top: var(--sp-md);
}
.hero-image-wrapper {
  width: 100%;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.1);
  transform: perspective(1000px) rotateX(5deg);
  transition: transform 0.5s ease;
}
.hero-image-wrapper:hover { transform: perspective(1000px) rotateX(0deg); }

/* Components: Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-md);
}
.feature-card {
  background: var(--bg-surface);
  padding: var(--sp-md);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255,255,255,0.05);
  transition: transform 0.3s, border-color 0.3s;
}
.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
}
.card-icon {
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-sm);
  font-size: 1.5rem;
}

/* Components: Stats */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  gap: var(--sp-lg);
  text-align: center;
}
.stat-item h3 { font-size: clamp(2.5rem, 5vw, 4rem); color: var(--text-main); margin: 0; }
.stat-item p { margin: 0; text-transform: uppercase; letter-spacing: 1px; font-size: 0.8rem; font-weight: 700; }

/* Components: FAQ */
.faq-list { display: flex; flex-direction: column; gap: var(--sp-sm); }
.faq-item {
  background: var(--bg-surface);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
}
.faq-question {
  padding: var(--sp-md);
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-answer {
  padding: 0 var(--sp-md) var(--sp-md);
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Components: CTA Band */
.cta-band {
  background: linear-gradient(135deg, var(--bg-surface-2), var(--bg-body));
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--border-radius);
  padding: var(--sp-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--accent-lime), var(--accent-primary), var(--accent-coral));
}

/* Footer */
.site-footer {
  background: var(--bg-body);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-block: var(--sp-xl);
  margin-top: var(--sp-xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-lg);
}
.footer-col h4 { color: var(--text-main); margin-bottom: var(--sp-md); font-size: 1.1rem; }
.footer-col ul li { margin-bottom: var(--sp-xs); }
.footer-col ul li a:hover { color: var(--accent-primary); text-decoration: underline; }
.footer-bottom {
  margin-top: var(--sp-lg);
  padding-top: var(--sp-md);
  border-top: 1px solid rgba(255,255,255,0.05);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Responsive */
@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.2fr 1fr;
    text-align: left;
    align-items: center;
  }
  .hero-content { align-items: flex-start; }
  .hero-actions { justify-content: flex-start; }
}

@media (max-width: 768px) {
  .nav-links { display: none; } /* Simplified for CSS-only demo */
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-bottom { justify-content: center; text-align: center; }
} img,svg,video{max-width:100%;height:auto} *{box-sizing:border-box} html{-webkit-text-size-adjust:100%}