/* Design System & Variables */
:root {
  --font-display: 'Outfit', sans-serif;
  --font-sans: 'Inter', sans-serif;
  
  --bg-dark: #050507;
  --bg-card: rgba(255, 255, 255, 0.03);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(124, 58, 237, 0.3);
  
  --purple-accent: #7c3aed;
  --purple-light: #c084fc;
  --electric-blue: #2563eb;
  --electric-blue-glow: rgba(37, 99, 235, 0.25);
  
  --text-primary: #ffffff;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

body {
  min-h: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Grids & Overlays */
.grid-overlay {
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.025;
  background-image: radial-gradient(circle, #ffffff 1px, transparent 1px);
  background-size: 30px 30px;
}

.glow-overlay {
  pointer-events: none;
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  z-index: 0;
  filter: blur(80px);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--purple-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-purple-blue {
  background: linear-gradient(135deg, var(--purple-accent) 0%, var(--electric-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 10;
}

section {
  position: relative;
  padding: 8rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(5, 5, 7, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition-smooth);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  background: linear-gradient(135deg, var(--purple-light), var(--electric-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background: var(--purple-accent);
  color: var(--text-primary);
  border: none;
  box-shadow: 0 4px 20px var(--electric-blue-glow);
}

.btn-primary:hover {
  background: #6d28d9;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Hero Section */
#hero {
  padding-top: 12rem;
  padding-bottom: 6rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

#bg-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 5rem;
  }
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* Metric Stats Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 5rem;
}

@media (min-width: 768px) {
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  padding: 1.5rem;
  backdrop-filter: blur(8px);
  text-align: center;
  transition: var(--transition-smooth);
}

.metric-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.metric-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem auto;
}

.section-header span {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--purple-light);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(8px);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.05);
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 8px;
  background: rgba(124, 58, 237, 0.1);
  color: var(--purple-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Integration Section */
.integration-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
}

@media (min-width: 768px) {
  .integration-content {
    grid-template-columns: 1fr 1fr;
  }
}

.integration-text h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.integration-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.integration-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tag {
  background: rgba(37, 99, 235, 0.1);
  color: #60a5fa;
  border: 1px solid rgba(37, 99, 235, 0.2);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-family: monospace;
}

.integration-visual {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 2.5rem;
  backdrop-filter: blur(8px);
}

.integration-list {
  list-style: none;
}

.integration-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.integration-list li:last-child {
  margin-bottom: 0;
}

.integration-list svg {
  color: var(--purple-light);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

/* Contact Form */
.contact-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 2.5rem;
  backdrop-filter: blur(8px);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--purple-accent);
  background: rgba(255, 255, 255, 0.05);
}

/* Footer */
footer {
  padding: 4rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Animations */
.fade-in-section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  visibility: hidden;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: none;
  visibility: visible;
}