/* ============================================
   CHASK - Mobility Intelligence Platform
   Corporate Landing Page Styles
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --accent-1: #6366f1;
  --accent-2: #8b5cf6;
  --accent-3: #a78bfa;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --teal: #2dd4bf;
  --teal-glow: rgba(45, 212, 191, 0.25);
  --coral: #f472b6;
  --gold: #fbbf24;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(99, 102, 241, 0.15);
  --gradient-main: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
  --gradient-teal: linear-gradient(135deg, #2dd4bf, #6366f1);
  --gradient-warm: linear-gradient(135deg, #f472b6, #fbbf24);
  --radius: 16px;
  --radius-sm: 8px;
  --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 { font-family: var(--font-display); line-height: 1.2; text-align: center; }
p { text-align: justify; }

a { color: var(--accent-3); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--teal); }

img { max-width: 100%; display: block; }

/* --- Utility --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-teal {
  background: var(--gradient-teal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Animated Background --- */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(99,102,241,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.bg-orbs {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.bg-orbs .orb {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4;
  animation: orbFloat 20s ease-in-out infinite alternate;
}
.bg-orbs .orb-1 { width: 500px; height: 500px; background: var(--accent-1); top: -10%; left: -5%; }
.bg-orbs .orb-2 { width: 400px; height: 400px; background: var(--teal); bottom: 10%; right: -5%; animation-delay: -7s; }
.bg-orbs .orb-3 { width: 300px; height: 300px; background: var(--coral); top: 50%; left: 40%; animation-delay: -14s; opacity: 0.2; }

@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.1); }
  100% { transform: translate(-20px, 20px) scale(0.95); }
}

/* --- Navigation --- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  background: rgba(10, 14, 26, 0.6);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled { background: rgba(10, 14, 26, 0.95); padding: 10px 0; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; }
.nav-logo .logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--gradient-main); display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: #fff; font-weight: 800;
}
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; letter-spacing: 0.02em; white-space: nowrap; }
.nav-links a:hover { color: var(--text-primary); }
.nav-cta {
  padding: 10px 24px; border-radius: 50px; background: var(--gradient-main);
  color: #fff; font-weight: 600; font-size: 0.9rem; border: none; cursor: pointer;
  transition: var(--transition); display: inline-block;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); color: #fff; }
.menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }

/* --- Hero Section --- */
.hero {
  position: relative; z-index: 1;
  min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 80px;
}
.hero-content { max-width: 720px; text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 50px;
  background: rgba(99, 102, 241, 0.1); border: 1px solid var(--border);
  font-size: 0.8rem; color: var(--accent-3); font-weight: 500;
  margin-bottom: 24px;
}
.hero-badge .pulse {
  width: 8px; height: 8px; border-radius: 50%; background: var(--teal);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.5); } }

.hero h1 { font-size: clamp(2.5rem, 6vw, 4.2rem); font-weight: 800; margin-bottom: 24px; letter-spacing: -0.02em; }
.hero p { font-size: 1.15rem; color: var(--text-secondary); max-width: 560px; margin-bottom: 40px; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.btn-primary {
  padding: 14px 32px; border-radius: 50px; background: var(--gradient-main);
  color: #fff; font-weight: 600; font-size: 1rem; border: none; cursor: pointer;
  transition: var(--transition); display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px var(--accent-glow); color: #fff; }
.btn-secondary {
  padding: 14px 32px; border-radius: 50px;
  background: transparent; border: 1px solid var(--border);
  color: var(--text-primary); font-weight: 500; font-size: 1rem; cursor: pointer;
  transition: var(--transition); display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover { border-color: var(--accent-1); background: rgba(99,102,241,0.05); }

.hero-visual {
  position: absolute; right: -5%; top: 50%; transform: translateY(-50%);
  width: 45%; max-width: 600px; z-index: -1; opacity: 0.7;
}
.hero-visual .heatmap-mock {
  width: 100%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(244,114,182,0.4), rgba(99,102,241,0.2) 50%, transparent 70%);
  filter: blur(2px);
  animation: heatPulse 4s ease-in-out infinite;
}
@keyframes heatPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.05); opacity: 0.9; }
}

/* --- Stats Bar --- */
.stats-bar {
  position: relative; z-index: 1; padding: 60px 0;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item h3 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: 4px; }
.stat-item p { font-size: 0.85rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }

/* --- Section Base --- */
.section { position: relative; z-index: 1; padding: 100px 0; }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 64px; }
.section-label {
  display: inline-block; font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--accent-3); margin-bottom: 16px;
}
.section-header h2 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; margin-bottom: 16px; }
.section-header p { color: var(--text-secondary); font-size: 1.05rem; }

/* --- Problem / Solution --- */
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.problem-card, .solution-card {
  padding: 40px; border-radius: var(--radius);
  border: 1px solid var(--border); backdrop-filter: blur(10px);
  transition: var(--transition);
}
.problem-card { background: rgba(244, 114, 182, 0.03); }
.problem-card:hover { border-color: rgba(244, 114, 182, 0.3); transform: translateY(-4px); }
.solution-card { background: rgba(45, 212, 191, 0.03); }
.solution-card:hover { border-color: rgba(45, 212, 191, 0.3); transform: translateY(-4px); }
.card-icon { font-size: 2.5rem; margin-bottom: 20px; }
.problem-card h3, .solution-card h3 { font-size: 1.3rem; margin-bottom: 12px; }
.problem-card p, .solution-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* --- How It Works --- */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step-card {
  padding: 40px 32px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  text-align: center; transition: var(--transition); position: relative;
}
.step-card:hover { border-color: var(--accent-1); transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.step-number {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--gradient-main); display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.3rem;
  margin: 0 auto 20px; color: #fff;
}
.step-card h3 { font-size: 1.15rem; margin-bottom: 12px; }
.step-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* --- Features Grid --- */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  padding: 36px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: var(--transition);
}
.feature-card:hover { border-color: var(--accent-1); transform: translateY(-4px); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 20px;
}
.feature-icon.purple { background: rgba(99, 102, 241, 0.15); }
.feature-icon.teal { background: rgba(45, 212, 191, 0.15); }
.feature-icon.coral { background: rgba(244, 114, 182, 0.15); }
.feature-icon.gold { background: rgba(251, 191, 36, 0.15); }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* --- Comparison Table --- */
.comparison-wrapper {
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); background: var(--bg-card);
}
.comparison-table { width: 100%; border-collapse: collapse; }
.comparison-table th, .comparison-table td { padding: 18px 24px; text-align: left; }
.comparison-table thead th {
  background: rgba(99, 102, 241, 0.08); font-weight: 600;
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent-3);
  border-bottom: 1px solid var(--border);
}
.comparison-table tbody td { border-bottom: 1px solid var(--border); font-size: 0.95rem; color: var(--text-secondary); }
.comparison-table tbody tr:last-child td { border-bottom: none; }
.comparison-table .highlight { color: var(--teal); font-weight: 600; }
.comparison-table .dim { color: var(--text-muted); }

/* --- Pricing --- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; align-items: start; }
.price-card {
  padding: 40px 32px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: var(--transition); text-align: center;
}
.price-card.featured {
  border-color: var(--accent-1); position: relative;
  background: linear-gradient(180deg, rgba(99,102,241,0.08), var(--bg-card));
}
.price-card.featured::before {
  content: 'POPULAR'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  padding: 4px 16px; border-radius: 50px; background: var(--gradient-main);
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; color: #fff;
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.price-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.price-card .price { font-size: 2.8rem; font-weight: 800; margin: 16px 0 8px; font-family: var(--font-display); }
.price-card .price span { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.price-card .price-desc { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 24px; }
.price-features { list-style: none; text-align: left; margin-bottom: 32px; }
.price-features li {
  padding: 8px 0; font-size: 0.9rem; color: var(--text-secondary);
  display: flex; align-items: center; gap: 10px;
}
.price-features li::before { content: '✓'; color: var(--teal); font-weight: 700; }

/* --- CTA Section --- */
.cta-section {
  position: relative; z-index: 1; padding: 100px 0;
  text-align: center;
}
.cta-box {
  padding: 80px 60px; border-radius: 24px;
  background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(139,92,246,0.08));
  border: 1px solid var(--border); position: relative; overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(99,102,241,0.15), transparent 60%);
}
.cta-box h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 16px; position: relative; }
.cta-box p { color: var(--text-secondary); font-size: 1.1rem; margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; position: relative; }
.cta-box .btn-primary { position: relative; font-size: 1.1rem; padding: 16px 40px; }

/* --- Footer --- */
.footer {
  position: relative; z-index: 1; padding: 60px 0 30px;
  border-top: 1px solid var(--border);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 12px; max-width: 280px; }
.footer-col h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-muted); margin-bottom: 16px; text-align: left; }
.footer-col ul { list-style: none; text-align: left; }
.footer-col li { margin-bottom: 10px; text-align: left; }
.footer-col a { color: var(--text-secondary); font-size: 0.9rem; }
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; color: var(--text-muted);
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- Responsive --- */
@media (max-width: 968px) {
  .hero-visual { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-grid, .steps-grid, .features-grid, .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .menu-toggle { display: block; }
  .nav-links.active {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(10, 14, 26, 0.98); padding: 24px;
    border-bottom: 1px solid var(--border);
  }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .cta-box { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

/* Typography Fixes */
h1, h2, h3 { text-align: center; text-wrap: balance; }
p { text-align: justify; }