/* ============================================
   MedJourney Landing Page Styles
   Modern Dark Theme with Glassmorphism
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* Primary Colors */
  --primary-dark: #0a0f1a;
  --primary-navy: #0d1526;
  --primary-blue: #1a2744;
  
  /* Accent Colors */
  --accent-cyan: #00d4ff;
  --accent-teal: #00b4d8;
  --accent-purple: #7c3aed;
  --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #a3b3c9;
  --text-muted: #6b7a90;
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  
  /* Spacing */
  --section-padding: 120px 0;
  --container-width: 1200px;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

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

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

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

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

/* ---------- Gradient Text ---------- */
.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-medium);
}

.btn-primary {
  background: var(--accent-gradient);
  color: var(--primary-dark);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-cyan);
}

/* ---------- Glass Card ---------- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(20px);
  transition: all var(--transition-medium);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow);
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all var(--transition-medium);
}

.navbar.scrolled {
  background: rgba(10, 15, 26, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 16px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}

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

.nav-links a:hover {
  color: var(--accent-cyan);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

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

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 255, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(124, 58, 237, 0.1), transparent);
  pointer-events: none;
}

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

.hero-text {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--accent-cyan);
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  margin-bottom: 24px;
}

.hero-description {
  font-size: 1.25rem;
  margin-bottom: 40px;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.code-window {
  background: var(--primary-navy);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--glass-border);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot.red { background: #ff5f57; }
.code-dot.yellow { background: #febc2e; }
.code-dot.green { background: #28c840; }

.code-title {
  margin-left: 12px;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

.code-content {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.8;
  overflow-x: auto;
}

.code-content pre {
  margin: 0;
}

.code-keyword { color: #c792ea; }
.code-string { color: #c3e88d; }
.code-property { color: #82aaff; }
.code-number { color: #f78c6c; }
.code-comment { color: #546e7a; }

/* ---------- Section Base ---------- */
section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-header p {
  font-size: 1.125rem;
  margin-top: 16px;
}

/* ---------- Features Section ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  text-align: left;
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-gradient);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.95rem;
}

/* ---------- Stats Section ---------- */
.stats-section {
  background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-navy) 100%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ---------- Domains Section ---------- */
.domains-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.domains-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.domain-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  transition: all var(--transition-medium);
}

.domain-item:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.05);
}

.domain-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-blue);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.domain-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.domain-info p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.domains-visual {
  position: sticky;
  top: 120px;
}

/* ---------- Architecture Section ---------- */
.architecture-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.arch-card {
  text-align: center;
  padding: 40px 24px;
}

.arch-card h3 {
  margin-bottom: 12px;
  color: var(--accent-cyan);
}

.arch-card p {
  font-size: 0.9rem;
}

/* ---------- Security Section ---------- */
.security-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.security-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.security-item {
  display: flex;
  gap: 16px;
}

.security-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.security-text h4 {
  margin-bottom: 8px;
}

.security-text p {
  font-size: 0.95rem;
}

/* ---------- Use Cases Section ---------- */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.use-case-card {
  display: flex;
  gap: 20px;
}

.use-case-icon {
  width: 60px;
  height: 60px;
  background: var(--accent-gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.use-case-content h3 {
  margin-bottom: 12px;
}

.use-case-content ul {
  list-style: none;
  padding: 0;
}

.use-case-content li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.use-case-content li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
}

/* ---------- Benefits Section ---------- */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.benefit-card {
  text-align: center;
  padding: 40px 24px;
}

.benefit-emoji {
  font-size: 3rem;
  margin-bottom: 20px;
}

.benefit-card h3 {
  margin-bottom: 12px;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background: linear-gradient(180deg, var(--primary-navy) 0%, var(--primary-dark) 100%);
}

.cta-content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  padding: 80px 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 32px;
  position: relative;
  overflow: hidden;
}

.cta-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: var(--accent-gradient);
}

.cta-content h2 {
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.125rem;
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.footer {
  padding: 60px 0;
  border-top: 1px solid var(--glass-border);
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo span {
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

/* ---------- Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ---------- Responsive Design ---------- */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text {
    max-width: 100%;
  }
  
  .hero-description {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-visual {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .domains-wrapper {
    grid-template-columns: 1fr;
  }
  
  .domains-visual {
    display: none;
  }
  
  .architecture-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .security-content {
    grid-template-columns: 1fr;
  }
  
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }
  
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .features-grid,
  .stats-grid,
  .architecture-grid,
  .use-cases-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ---------- Scrollbar Styling ---------- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-blue);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-teal);
}