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

:root {
  --bg-color: #050b14;
  --bg-secondary: #0a1321;
  --bg-card: rgba(10, 19, 33, 0.7);
  --primary-cyan: #00E5FF;
  --primary-cyan-hover: #00B8D9;
  --accent-blue: #0055FF;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --silver-metallic: #E2E8F0;
  
  --glass-border: rgba(255, 255, 255, 0.05);
  --cyan-glow: 0 0 20px rgba(0, 229, 255, 0.4);
  --cyan-glow-intense: 0 0 35px rgba(0, 229, 255, 0.6);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.bg-gradient {
  background: linear-gradient(180deg, var(--bg-color) 0%, var(--bg-secondary) 100%);
}

.min-h-screen {
  min-height: 100vh;
}

.text-slate {
  color: var(--text-main);
}

/* Typography Utility */
.gradient-text {
  background: linear-gradient(135deg, var(--silver-metallic) 0%, var(--primary-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-alt {
  background: linear-gradient(to right, var(--primary-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* Glassmorphism */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

/* Icons styling */
.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 20px; height: 20px; }
.icon-lg { width: 32px; height: 32px; }
.icon-cyan { color: var(--primary-cyan); }
.icon-blue { color: var(--accent-blue); }

/* Buttons */
.btn-primary {
  background: linear-gradient(45deg, var(--accent-blue), var(--primary-cyan));
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--cyan-glow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--cyan-glow-intense);
  background: linear-gradient(45deg, var(--primary-cyan), var(--accent-blue));
}
.btn-secondary {
  background: transparent;
  color: var(--silver-metallic);
  border: 1px solid var(--primary-cyan);
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}
.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.1);
  color: var(--primary-cyan);
}
.btn-sm { padding: 8px 20px; font-size: 0.9rem; }
.btn-lg { padding: 16px 32px; font-size: 1.1rem; }

/* Layout Details */
.section-padding { padding: 100px 5%; }
.container { max-width: 1200px; margin: 0 auto; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  transition: all 0.3s ease;
  background: transparent;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 19, 33, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.header-container { display: flex; justify-content: space-between; align-items: center; padding: 20px 5%; }
.logo-container { display: flex; align-items: center; gap: 10px; }
.logo-text { display: flex; flex-direction: column; }
.stark-logo { font-size: 28px; font-weight: 900; margin: 0; letter-spacing: 2px; line-height: 1; }
.stark-subtitle { font-size: 10px; color: var(--primary-cyan); letter-spacing: 1px; text-transform: uppercase; font-weight: 600; }
.desktop-nav { display: flex; gap: 30px; }
.nav-link { color: var(--silver-metallic); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.nav-link:hover { color: var(--primary-cyan); }
.header-cta { display: flex; gap: 15px; }

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}
.glow-effect { position: absolute; z-index: 0; border-radius: 50%; }
.glow-cyan { top: -10%; right: -5%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, rgba(5, 11, 20, 0) 70%); }
.glow-blue { bottom: 10%; left: -10%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(0, 85, 255, 0.1) 0%, rgba(5, 11, 20, 0) 70%); }
.hero-container { position: relative; z-index: 10; display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.badge { display: inline-block; padding: 6px 14px; background: rgba(0, 229, 255, 0.1); border-radius: 20px; border: 1px solid rgba(0, 229, 255, 0.2); margin-bottom: 20px; }
.badge-text { color: var(--primary-cyan); font-size: 0.85rem; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.hero-title { font-size: 3.5rem; margin-bottom: 24px; letter-spacing: -1px; }
.hero-desc { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 40px; max-width: 90%; }
.hero-buttons { display: flex; gap: 20px; }
.hero-stats { display: flex; gap: 30px; margin-top: 50px; }
.stat-item { display: flex; align-items: center; gap: 10px; }
.stat-icon-wrapper { padding: 10px; background: rgba(255, 255, 255, 0.05); border-radius: 10px; }
.stat-value { margin: 0; font-size: 1rem; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

/* Visualization Panel */
.hero-visual { position: relative; }
.mockup-panel { padding: 20px; position: relative; z-index: 2; }
.mockup-header { display: flex; justify-content: space-between; margin-bottom: 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); padding-bottom: 10px; }
.mockup-dots { display: flex; gap: 10px; align-items: center; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: #EF4444; }
.dot-yellow { background: #F59E0B; }
.dot-green { background: #10B981; }
.mockup-url { font-size: 0.8rem; color: var(--text-muted); }
.mockup-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; margin-bottom: 20px; }
.mockup-card { background: rgba(255, 255, 255, 0.03); padding: 15px; border-radius: 8px; }
.mockup-icon { width: 30px; height: 30px; background: rgba(0, 229, 255, 0.1); border-radius: 6px; margin-bottom: 10px; }
.mockup-line-long { width: 80%; height: 8px; background: rgba(255, 255, 255, 0.2); border-radius: 4px; margin-bottom: 6px; }
.mockup-line-short { width: 50%; height: 8px; background: rgba(255, 255, 255, 0.1); border-radius: 4px; }
.mockup-chart { width: 100%; height: 150px; background: linear-gradient(180deg, rgba(0, 85, 255, 0.2) 0%, rgba(0, 85, 255, 0) 100%); border-radius: 8px; border: 1px solid rgba(0, 85, 255, 0.3); position: relative; overflow: hidden; }

/* Floating Notification */
.floating-notification { position: absolute; top: 10%; right: -30px; padding: 15px; z-index: 3; display: flex; align-items: center; gap: 15px; }
.notification-icon { width: 40px; height: 40px; border-radius: 50%; background: #10B981; display: flex; align-items: center; justify-content: center; }
.notification-icon i { color: #fff; }
.notification-title { margin: 0; font-size: 1rem; }
.notification-time { font-size: 0.75rem; color: var(--text-muted); }

/* Features Section */
.features-section { position: relative; z-index: 5; }
.features-header { text-align: center; margin: 0 auto 80px; max-width: 700px; }
.features-title { font-size: 2.5rem; margin-bottom: 20px; }
.features-subtitle { color: var(--text-muted); font-size: 1.1rem; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.feature-card { padding: 40px 30px; transition: all 0.3s ease; }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0, 229, 255, 0.1); }
.feature-icon-wrapper { margin-bottom: 20px; display: inline-block; padding: 15px; background: rgba(255, 255, 255, 0.03); border-radius: 12px; }
.cyan-text { color: var(--primary-cyan); }
.blue-text { color: var(--accent-blue); }
.feature-icon { width: 32px; height: 32px; }
.feature-card-title { font-size: 1.3rem; margin-bottom: 15px; }
.feature-card-desc { color: var(--text-muted); line-height: 1.6; font-size: 0.95rem; }

/* CTA Section */
.cta-section { position: relative; margin-top: 50px; }
.cta-panel { padding: 80px 40px; text-align: center; position: relative; overflow: hidden; background: linear-gradient(145deg, rgba(10, 19, 33, 0.9) 0%, rgba(0, 85, 255, 0.1) 100%); }
.cta-glow { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 300px; height: 300px; background: radial-gradient(circle, rgba(0, 229, 255, 0.2) 0%, transparent 70%); z-index: 0; }
.cta-content { position: relative; z-index: 10; max-width: 600px; margin: 0 auto; }
.cta-title { font-size: 3rem; margin-bottom: 20px; }
.cta-desc { color: var(--text-muted); font-size: 1.2rem; margin-bottom: 40px; }
.cta-form { display: flex; flex-direction: column; gap: 15px; }
.form-row { display: flex; gap: 15px; }
.form-input { flex: 1; padding: 16px 20px; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.1); background: rgba(0, 0, 0, 0.3); color: #fff; font-size: 1rem; outline: none; }
.cta-submit { padding: 18px; font-size: 1.1rem; margin-top: 10px; width: 100%; }
.cta-note { margin-top: 20px; font-size: 0.85rem; color: #64748b; }

/* Footer */
.site-footer { background: #03060c; padding: 60px 5% 30px; border-top: 1px solid rgba(255, 255, 255, 0.05); }
.footer-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 40px; margin-bottom: 40px; }
.footer-brand { max-width: 300px; }
.footer-logo { margin-bottom: 20px; }
.footer-desc { color: #64748b; font-size: 0.9rem; }
.footer-links-group { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col-title { color: #fff; margin-bottom: 15px; }
.footer-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-list a { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
.footer-list a:hover { color: var(--primary-cyan); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.05); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; color: #64748b; font-size: 0.85rem; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: var(--bg-secondary); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-cyan); }

/* Animations - Replacing Framer Motion */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0px); }
}
.floating { animation: float 6s ease-in-out infinite; }

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.bounce-animation { animation: bounce 4s infinite ease-in-out; }

/* Intersection Observer Classes */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in-up.reveal {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in-left.reveal {
  opacity: 1;
  transform: translateX(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }
.delay-600 { transition-delay: 0.6s; }

/* Media Queries */
@media (max-width: 768px) {
  .hero-container, .footer-top { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.5rem; }
  .desktop-nav { display: none; }
  .form-row { flex-direction: column; }
}