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

:root {
  /* Colors - STRICTLY ENFORCED */
  --primary: #0A2EA8;
  --primary-dark: #081F78;
  --primary-royal: #1C4DFF;
  --ai-cyan: #00C2FF;
  --ai-soft: #DFF8FF;
  --white: #FCFCFD;
  --light-gray: #F3F6FC;
  --border: #D6E2FF;
  --text-dark: #0B1B52;
  --text-secondary: #5A6B91;

  /* Premium Gradients */
  --bg-gradient: linear-gradient(135deg, #FCFCFD 0%, #F3F6FC 100%);
  --ai-gradient: linear-gradient(135deg, #00C2FF 0%, #1C4DFF 100%);
  --dark-gradient: linear-gradient(135deg, #081F78 0%, #0A2EA8 100%);
  --mesh-gradient: radial-gradient(at 0% 0%, hsla(226,100%,70%,0.15) 0px, transparent 50%),
                   radial-gradient(at 100% 0%, hsla(194,100%,70%,0.15) 0px, transparent 50%),
                   radial-gradient(at 100% 100%, hsla(226,100%,70%,0.1) 0px, transparent 50%),
                   radial-gradient(at 0% 100%, hsla(194,100%,70%,0.1) 0px, transparent 50%);
                   
  --glass-bg: rgba(252, 252, 253, 0.6);
  --glass-border: rgba(255, 255, 255, 0.4);

  /* Linear/Stripe Style Shadows */
  --shadow-xs: 0 1px 2px rgba(11, 27, 82, 0.05);
  --shadow-sm: 0 4px 12px rgba(11, 27, 82, 0.04), 0 1px 2px rgba(11, 27, 82, 0.02);
  --shadow-md: 0 12px 32px rgba(11, 27, 82, 0.06), 0 2px 6px rgba(11, 27, 82, 0.03);
  --shadow-lg: 0 24px 64px rgba(11, 27, 82, 0.08), 0 4px 12px rgba(11, 27, 82, 0.04);
  --shadow-glow: 0 0 40px rgba(0, 194, 255, 0.4);
  --shadow-glow-primary: 0 0 40px rgba(28, 77, 255, 0.4);

  /* Apple-style Spacing */
  --section-padding: 140px 0;
  --container-width: 1200px;

  /* Border Radius */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-pill: 9999px;
  
  /* Advanced Transitions */
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.2s var(--ease-smooth);
  --transition-normal: 0.4s var(--ease-smooth);
  --transition-slow: 0.8s var(--ease-smooth);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-dark);
  background-color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body { line-height: 1.6; overflow-x: hidden; background: var(--bg-gradient); }

a { text-decoration: none; color: inherit; transition: var(--transition-fast); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* Premium Typography */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.15; color: var(--primary-dark); }
h1 { font-size: clamp(3rem, 6vw, 4.5rem); letter-spacing: -0.04em; }
h2 { font-size: clamp(2.25rem, 5vw, 3.5rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.01em; }
p { font-size: 1.125rem; color: var(--text-secondary); font-weight: 500; letter-spacing: -0.01em; }

.text-gradient {
  background: linear-gradient(135deg, var(--primary-royal) 0%, var(--ai-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: shine 5s linear infinite;
}

@keyframes shine {
  to { background-position: 200% center; }
}

/* Layout */
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
section { padding: var(--section-padding); position: relative; }

/* Navigation - Glassmorphism */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; padding: 24px 0; z-index: 1000;
  transition: var(--transition-normal); background: transparent; border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  padding: 16px 0; border-bottom: 1px solid rgba(214, 226, 255, 0.5);
}

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

.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-links a { font-weight: 600; font-size: 0.95rem; color: var(--text-dark); position: relative; }
.nav-links a:not(.btn):hover { color: var(--primary-royal); }

.mobile-toggle { display: none; font-size: 1.5rem; cursor: pointer; color: var(--primary-dark); position: relative; z-index: 1001; }

/* Buttons - SaaS Style */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-pill); font-weight: 600; font-size: 1rem;
  cursor: pointer; transition: var(--transition-normal); border: none; outline: none;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--primary-royal); color: var(--white);
  box-shadow: 0 4px 14px rgba(28, 77, 255, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  background: var(--primary-dark); transform: translateY(-2px);
  box-shadow: var(--shadow-glow-primary); color: var(--white);
}

.btn-secondary {
  background: var(--white); color: var(--primary-dark);
  border: 1px solid var(--border); box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background: var(--light-gray); transform: translateY(-2px); box-shadow: var(--shadow-sm); border-color: var(--primary-royal);
}

/* Hero Section */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  background: var(--bg-gradient), var(--mesh-gradient);
  position: relative; overflow: hidden; padding-top: 120px; padding-bottom: 80px;
}

.hero-container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; z-index: 1; position: relative; }

.hero-content h1 { margin-bottom: 24px; }
.hero-content p { margin-bottom: 40px; font-size: 1.35rem; max-width: 90%; }
.hero-cta { display: flex; gap: 16px; align-items: center; }

/* Phone Mockup - Premium */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; perspective: 1000px; }

.phone-mockup {
  width: 100%; max-width: 320px; height: 650px; background: var(--white);
  border-radius: 48px; border: 10px solid var(--primary-dark);
  box-shadow: var(--shadow-lg), inset 0 0 0 2px rgba(255,255,255,0.5);
  position: relative; overflow: hidden; z-index: 2;
  display: flex; flex-direction: column;
  transform: rotateY(-5deg) rotateX(5deg);
  transition: transform 0.5s var(--ease-smooth);
}

.phone-mockup:hover { transform: rotateY(0) rotateX(0) translateY(-10px); }

.phone-notch {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 120px; height: 30px; background: var(--primary-dark);
  border-bottom-left-radius: 20px; border-bottom-right-radius: 20px; z-index: 10;
}

.phone-screen { flex: 1; background: var(--light-gray); padding: 50px 20px 20px; display: flex; flex-direction: column; gap: 16px; }

.mockup-card { background: var(--white); padding: 16px; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); display: flex; gap: 12px; align-items: center; }
.mockup-avatar { width: 40px; height: 40px; background: var(--ai-gradient); border-radius: 50%; }
.mockup-text-line { height: 8px; background: var(--border); border-radius: var(--radius-pill); margin-bottom: 8px; }
.mockup-text-line:last-child { margin-bottom: 0; width: 60%; }
.mockup-image { height: 160px; background: var(--border); border-radius: var(--radius-md); margin-bottom: 8px; overflow: hidden; }

/* Floating Cards */
.floating-card {
  position: absolute; background: var(--glass-bg);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border); padding: 16px 24px;
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
  z-index: 1; display: flex; align-items: center; gap: 16px;
}

.floating-card.top-right { top: 8%; right: -50px; animation: float 6s ease-in-out infinite; }
.floating-card.bottom-left { bottom: 10%; left: -60px; animation: float 5s ease-in-out infinite 1s; }

@keyframes float { 0% { transform: translateY(0); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0); } }

/* Section Headers */
.section-header { text-align: center; margin-bottom: 80px; max-width: 700px; margin-left: auto; margin-right: auto; }

.section-badge {
  display: inline-block; padding: 6px 16px; background: var(--ai-soft); color: var(--primary-royal);
  font-size: 0.85rem; font-weight: 700; border-radius: var(--radius-pill); margin-bottom: 20px;
  letter-spacing: 0.05em; text-transform: uppercase;
}

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; }

.feature-card {
  background: var(--white); border: 1px solid rgba(214, 226, 255, 0.5);
  padding: 48px 32px; border-radius: var(--radius-lg); transition: var(--transition-normal);
  position: relative; overflow: hidden; box-shadow: var(--shadow-xs);
}

.feature-card:hover {
  box-shadow: var(--shadow-md); transform: translateY(-8px); border-color: var(--border);
}

.feature-icon-wrapper {
  width: 64px; height: 64px; background: var(--light-gray); border-radius: var(--radius-md);
  display: flex; justify-content: center; align-items: center; margin-bottom: 32px;
  font-size: 1.8rem; color: var(--primary-royal); transition: var(--transition-normal);
}

.feature-card:hover .feature-icon-wrapper { background: var(--primary-royal); color: var(--white); box-shadow: var(--shadow-glow-primary); }
.feature-card h3 { font-size: 1.35rem; margin-bottom: 16px; }
.feature-card p { font-size: 1rem; color: var(--text-secondary); line-height: 1.7; }

/* Ecosystem Section */
.ecosystem { background: var(--dark-gradient); padding: 120px 0; overflow: hidden; position: relative; color: var(--white); }
.ecosystem-content { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: center; }
.eco-text-container h2 { color: var(--white); }
.eco-text-container p { color: rgba(255,255,255,0.8); font-size: 1.125rem; }
.eco-step { display: flex; gap: 24px; margin-bottom: 32px; align-items: flex-start; }
.eco-number { 
  font-size: 1.5rem; font-weight: 700; color: var(--ai-cyan); 
  border-bottom: 2px solid var(--ai-cyan); padding-bottom: 4px;
}
.eco-text h4 { color: var(--white); font-size: 1.25rem; margin-bottom: 8px; }
.eco-text p { font-size: 1rem; color: rgba(255,255,255,0.7); margin-bottom: 0; }

/* Chat Simulation */
.chat-simulation {
  background: var(--light-gray); border-radius: var(--radius-lg); padding: 40px; max-width: 600px; margin: 0 auto;
  box-shadow: var(--shadow-md); border: 1px solid var(--border);
}

.chat-message { display: flex; gap: 16px; margin-bottom: 24px; opacity: 0; transform: translateY(20px); }
.chat-avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 1.2rem; }
.chat-avatar.user { background: var(--white); box-shadow: var(--shadow-sm); }
.chat-avatar.ai { background: var(--ai-gradient); color: white; box-shadow: var(--shadow-glow); }

.chat-bubble {
  background: var(--white); padding: 16px 24px; border-radius: 24px; box-shadow: var(--shadow-xs);
  font-size: 1rem; position: relative; color: var(--text-dark); max-width: 85%; line-height: 1.6;
}

.chat-bubble.user { background: var(--primary-royal); color: var(--white); border-top-right-radius: 4px; margin-left: auto; }
.chat-bubble.ai { border-top-left-radius: 4px; border: 1px solid var(--border); }

.typing-indicator { display: inline-flex; gap: 4px; align-items: center; height: 24px; }
.typing-dot { width: 6px; height: 6px; background: var(--text-secondary); border-radius: 50%; animation: typing 1.4s infinite ease-in-out; }
.typing-dot:nth-child(1) { animation-delay: 0s; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }

/* Pricing Section */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 32px; align-items: center; margin-top: 40px; }

.price-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 48px 40px; transition: var(--transition-normal); position: relative; box-shadow: var(--shadow-xs);
}

.price-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-10px); }
.price-card.popular { border: 2px solid var(--primary-royal); box-shadow: var(--shadow-md); transform: scale(1.05); }
.price-card.popular:hover { transform: scale(1.05) translateY(-10px); }

.popular-badge {
  position: absolute; top: -16px; left: 50%; transform: translateX(-50%); background: var(--ai-gradient);
  color: var(--white); padding: 8px 20px; border-radius: var(--radius-pill); font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; box-shadow: var(--shadow-sm);
}

.plan-price { font-size: 3rem; font-weight: 800; color: var(--primary-dark); margin-bottom: 8px; display: flex; align-items: baseline; gap: 8px; letter-spacing: -0.03em; }
.plan-price span { font-size: 1.1rem; color: var(--text-secondary); font-weight: 500; }
.plan-features li { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; font-size: 1rem; font-weight: 500; }
.plan-features li i { color: #34C759; font-size: 1.3rem; }

/* Footer */
.footer { background: var(--primary-dark); color: var(--white); padding: 100px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2.5fr 1fr 1fr 1fr; gap: 60px; margin-bottom: 80px; }
.footer-brand p { color: rgba(255,255,255,0.7); max-width: 320px; margin-top: 16px; font-size: 1rem; line-height: 1.7; }
.footer-col h4 { color: var(--white); margin-bottom: 24px; font-size: 1.1rem; }
.footer-col ul a { color: rgba(255,255,255,0.6); font-weight: 500; transition: var(--transition-fast); }
.footer-col ul a:hover { color: var(--white); padding-left: 5px; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-container { grid-template-columns: 1fr; gap: 60px; text-align: center; }
  .hero-cta { justify-content: center; }
  .phone-mockup { margin: 0 auto; transform: none; }
  .floating-card { display: none; }
  .price-card.popular { transform: none; }
  .price-card.popular:hover { transform: translateY(-10px); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(252, 252, 253, 0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    flex-direction: column; justify-content: center; align-items: center;
    padding: 20px; box-shadow: none; gap: 32px; transform: translateY(-100%);
    opacity: 0; visibility: hidden; transition: var(--transition-normal); z-index: 999;
  }
  .nav-links a { font-size: 1.25rem; font-weight: 600; }
  .nav-links a.btn { font-size: 1.1rem; padding: 16px 32px; width: 80%; max-width: 300px; }
  .nav-links.active { transform: translateY(0); opacity: 1; visibility: visible; }
  .mobile-toggle { display: block; }
  section { padding: 80px 0; }
  h1 { font-size: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .ecosystem-content { grid-template-columns: 1fr; }
  .eco-visual { order: -1; margin-bottom: 40px; }
}