/* ═══════════════════════════════════════════════════════
   S1b Landing Page Styles - Cyberpunk/Hacker Aesthetic
   ═══════════════════════════════════════════════════════ */

/* CSS Variables (Design Tokens) - Dark Mode (Default) */
:root {
  /* Colors - Neon Cyberpunk */
  --primary: #00F5FF; /* Cyan neon */
  --primary-glow: rgba(0, 245, 255, 0.5);
  --primary-dark: #00B8D4; /* Darker cyan for light mode */
  --secondary: #FF00F5; /* Magenta neon */
  --secondary-glow: rgba(255, 0, 245, 0.5);
  --secondary-dark: #C026D3; /* Darker magenta for light mode */
  --accent: #7C3AED; /* Purple */
  --accent-glow: rgba(124, 58, 237, 0.5);

  /* Backgrounds - Dark Mode */
  --bg-primary: #0A0E27; /* Dark blue */
  --bg-secondary: #0F172A; /* Darker */
  --bg-tertiary: #1E293B; /* Card background */
  --bg-surface: #334155; /* Surface */

  /* Text - Dark Mode */
  --text-primary: #F8FAFC; /* Almost white */
  --text-secondary: #CBD5E1; /* Light gray */
  --text-muted: #64748B; /* Muted gray */

  /* Borders */
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(0, 245, 255, 0.3);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Typography */
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  /* Effects */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px var(--primary-glow);
}

/* Light Mode Support - Pastel Cyberpunk */
@media (prefers-color-scheme: light) {
  :root {
    /* Backgrounds - Pastel Cyberpunk */
    --bg-primary: #F0F9FF; /* Pastel cyan background */
    --bg-secondary: #FCE7F3; /* Pastel pink background */
    --bg-tertiary: #F3E8FF; /* Pastel purple */
    --bg-surface: #E0F2FE; /* Light cyan surface */

    /* Text - Dark for contrast */
    --text-primary: #0F172A; /* Very dark blue-gray */
    --text-secondary: #1E293B; /* Dark slate */
    --text-muted: #475569; /* Medium slate */

    /* Accent colors - Vibrant but softer */
    --primary: #06B6D4; /* Bright cyan */
    --secondary: #D946EF; /* Bright magenta */
    --accent: #8B5CF6; /* Bright purple */
    --primary-glow: rgba(6, 182, 212, 0.25);
    --secondary-glow: rgba(217, 70, 239, 0.25);
    --accent-glow: rgba(139, 92, 246, 0.25);

    /* Borders - Pastel with color */
    --border-color: rgba(6, 182, 212, 0.2);
    --border-glow: rgba(217, 70, 239, 0.3);

    /* Shadows - Colorful */
    --shadow-sm: 0 1px 3px 0 rgba(6, 182, 212, 0.1);
    --shadow-md: 0 4px 8px -2px rgba(217, 70, 239, 0.15);
    --shadow-lg: 0 10px 20px -5px rgba(139, 92, 246, 0.2);
    --shadow-glow: 0 0 20px var(--primary-glow);
  }

  /* Body with gradient background */
  body {
    background: linear-gradient(135deg, #F0F9FF 0%, #FCE7F3 50%, #F3E8FF 100%);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
  }

  /* Navbar - Glass effect with pastel */
  .navbar {
    background: rgba(240, 249, 255, 0.85);
    border-bottom: 1px solid rgba(6, 182, 212, 0.3);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 10px rgba(217, 70, 239, 0.1);
  }

  /* Feature cards - Pastel with gradients */
  .feature-card {
    background: linear-gradient(135deg,
      rgba(240, 249, 255, 0.9) 0%,
      rgba(252, 231, 243, 0.9) 100%) !important;
    border: 1px solid rgba(217, 70, 239, 0.3) !important;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.15) !important;
    color: #0F172A !important;
    backdrop-filter: blur(8px);
  }

  .feature-card:hover {
    background: linear-gradient(135deg,
      rgba(224, 242, 254, 1) 0%,
      rgba(243, 232, 255, 1) 100%) !important;
    box-shadow: 0 8px 24px rgba(217, 70, 239, 0.25),
                0 0 30px rgba(6, 182, 212, 0.2) !important;
    border-color: var(--secondary) !important;
    transform: translateY(-4px);
  }

  .feature-icon {
    background: linear-gradient(135deg,
      rgba(6, 182, 212, 0.15),
      rgba(217, 70, 239, 0.15)) !important;
    color: var(--primary) !important;
  }

  .feature-title {
    color: #0F172A !important;
    text-shadow: 0 1px 2px rgba(217, 70, 239, 0.1);
  }

  .feature-description {
    color: #1E293B !important;
  }

  /* CTA card - Pastel gradient */
  .cta-card {
    background: linear-gradient(135deg,
      rgba(243, 232, 255, 0.95) 0%,
      rgba(252, 231, 243, 0.95) 50%,
      rgba(224, 242, 254, 0.95) 100%) !important;
    border: 2px solid rgba(217, 70, 239, 0.3) !important;
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.2) !important;
  }

  /* Doc cards */
  .doc-card {
    background: linear-gradient(135deg,
      rgba(240, 249, 255, 0.9),
      rgba(243, 232, 255, 0.9)) !important;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.15) !important;
    border: 1px solid rgba(139, 92, 246, 0.25) !important;
  }

  .doc-card:hover {
    box-shadow: 0 8px 24px rgba(217, 70, 239, 0.2) !important;
    border-color: var(--secondary) !important;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.2;
  font-weight: 700;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--bg-primary);
  box-shadow: 0 0 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--primary-glow);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-secondary:hover {
  background: rgba(0, 245, 255, 0.1);
  box-shadow: 0 0 20px var(--primary-glow);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 39, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.nav-brand .logo {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-bracket {
  color: var(--primary);
}

.logo-text {
  color: var(--text-primary);
}

.logo-accent {
  color: var(--secondary);
  text-shadow: 0 0 10px var(--secondary-glow);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-menu a {
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-cta {
  display: flex;
  gap: var(--spacing-sm);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(0, 245, 255, 0.05) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(0, 245, 255, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

.neon-glow {
  position: absolute;
  top: 20%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  filter: blur(60px);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.hero-content {
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1rem;
  background: rgba(0, 245, 255, 0.1);
  border: 1px solid var(--primary);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.hero-title {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
}

.gradient-text {
  /* Use solid color instead of gradient for reliability */
  color: var(--primary);
  /* Add glow effect for visual appeal */
  text-shadow: 0 0 30px var(--primary-glow);
  font-weight: 900;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-color);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.hero-note {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.note-icon {
  color: var(--primary);
}

/* App Screenshot Visual */
.app-screenshot {
  position: relative;
  border-radius: 0.75rem;
  overflow: hidden;
  max-width: 700px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4),
              0 0 40px var(--primary-glow);
  border: 1px solid var(--border-glow);
  transition: var(--transition);
}

.app-screenshot:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.5),
              0 0 60px var(--primary-glow);
}

.screenshot-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0.75rem;
  object-fit: contain;
}

/* Features Section */
.features {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  padding: var(--spacing-lg);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary-glow);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 245, 255, 0.1);
  border-radius: 0.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
  padding: var(--spacing-2xl) 0;
}

.cta-card {
  text-align: center;
  padding: var(--spacing-2xl);
  background: linear-gradient(
    135deg,
    rgba(0, 245, 255, 0.1),
    rgba(255, 0, 245, 0.1)
  );
  border: 1px solid var(--border-glow);
  border-radius: 1rem;
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.cta-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.cta-visual {
  margin-top: var(--spacing-2xl);
  text-align: center;
}

.cta-visual-img {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: 0.75rem;
  opacity: 0.9;
  transition: var(--transition);
}

.cta-visual-img:hover {
  opacity: 1;
  transform: scale(1.02);
}

/* Footer */
.footer {
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-tagline {
  color: var(--text-secondary);
  margin-top: var(--spacing-md);
  max-width: 300px;
}

.footer-links h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.938rem;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-social a {
  color: var(--text-secondary);
}

.footer-social a:hover {
  color: var(--primary);
}

.footer-banner {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-banner-img {
  width: 100%;
  max-width: 1200px;
  height: auto;
  border-radius: 0.5rem;
  opacity: 0.8;
  transition: var(--transition);
}

.footer-banner-img:hover {
  opacity: 1;
}

/* Responsive */
@media (max-width: 968px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 3rem;
  }

  .section-title {
    font-size: 2.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  .nav-menu,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-stats {
    flex-wrap: wrap;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}