/*
Theme Name: HoloGene Light
Description: A modern, light theme for HoloGene - AI-powered genome assistant
Version: 2.0
Author: BioInfore Team
*/

/* ==========================================
   CSS Variables - Enhanced Apple-inspired Light Theme
   ========================================== */
:root {
  /* Background Colors - Clean Light Theme */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --bg-card: rgba(0,0,0,0.03);
  --bg-card-hover: rgba(0,0,0,0.06);
  --bg-glass: rgba(0,0,0,0.02);
  --bg-glass-hover: rgba(0,0,0,0.05);
  --bg-mirror: rgba(0,0,0,0.02);
  --bg-frosted: rgba(0,0,0,0.04);
  
  /* Text Colors - Clean Dark Hierarchy */
  --text-primary: #212529;
  --text-secondary: #495057;
  --text-muted: #6c757d;
  --text-inverse: #ffffff;
  --text-glow: #212529;
  --text-accent: #212529;
  --text-subtle: #adb5bd;
  
  /* Accent Colors - Modern Light Theme */
  --accent-blue: #007AFF;
  --accent-green: #30D158;
  --accent-purple: #AF52DE;
  
  /* Override WordPress Default Purple Colors */
  --wp--preset--color--vivid-purple: #AF52DE !important;
  --accent-orange: #FF9500;
  --accent-red: #FF3B30;
  --accent-cyan: #00D4FF;
  --accent-pink: #FF2D92;
  --accent-yellow: #007AFF;
  --accent-sharp: #007AFF;
  
  /* Unified Highlight Color - Change this to modify all highlights */
  --highlight-color: #007AFF;
  --highlight-bg: rgba(44,85,48,0.1);
  --highlight-border: rgba(44,85,48,0.2);
  --highlight-shadow: rgba(44,85,48,0.4);
  
  /* Gradients - Light Theme */
  --gradient-primary: linear-gradient(135deg, #007AFF 0%, #30D158 100%);
  --gradient-secondary: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  --gradient-glow: linear-gradient(135deg, rgba(0,122,255,0.1) 0%, rgba(48,209,88,0.1) 100%);
  --gradient-bg: radial-gradient(ellipse at center, #ffffff 0%, #f8f9fa 100%);
  --gradient-tech: linear-gradient(45deg, #f8f9fa 0%, #e9ecef 25%, #f8f9fa 50%, #e9ecef 75%, #f8f9fa 100%);
  --gradient-mirror: linear-gradient(145deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.01) 50%, rgba(0,0,0,0.03) 100%);
  --gradient-frosted: linear-gradient(135deg, rgba(0,0,0,0.03) 0%, rgba(0,0,0,0.01) 100%);
  
  /* Borders - Light Theme Definition */
  --border-primary: rgba(0,0,0,0.15);
  --border-secondary: rgba(0,0,0,0.08);
  --border-glow: rgba(0,122,255,0.3);
  --border-strong: rgba(0,0,0,0.2);
  --border-subtle: rgba(0,0,0,0.05);
  --border-mirror: rgba(0,0,0,0.1);
  
  /* Shadows - Light Theme Subtle Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.15);
  --shadow-lg: 0 25px 50px rgba(0,0,0,0.2);
  --shadow-glow: 0 8px 32px rgba(0,122,255,0.15);
  --shadow-tech: 0 0 20px rgba(0,122,255,0.1);
  --shadow-mirror: inset 0 1px 0 rgba(255,255,255,0.8), 0 1px 3px rgba(0,0,0,0.1);
  --shadow-frosted: 0 8px 32px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.8);
  --shadow-strong: 0 4px 16px rgba(0,0,0,0.15), 0 1px 4px rgba(0,0,0,0.1);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50%;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.6s ease;
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  position: relative;
  font-weight: 400;
}

/* ==========================================
   Enhanced Background Effects
   ========================================== */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 122, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(48, 209, 88, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(175, 82, 222, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: -2;
  animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
  0%, 100% { transform: translateX(0) translateY(0); }
  25% { transform: translateX(-10px) translateY(-5px); }
  50% { transform: translateX(10px) translateY(5px); }
  75% { transform: translateX(-5px) translateY(10px); }
}

/* Animated Grid Background */
.tech-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: -1;
  animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

/* ==========================================
   Enhanced Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  text-shadow: 0 0 20px rgba(255,255,255,0.1);
  letter-spacing: -0.02em;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-lg);
  text-align: center;
  position: relative;
  animation: titleGlow 3s ease-in-out infinite alternate;
  padding: 2rem;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.hero-title::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-mirror);
  opacity: 0.4;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-mirror);
  z-index: -1;
}

@keyframes titleGlow {
  0% { filter: drop-shadow(0 0 15px rgba(255,255,255,0.2)); }
  100% { filter: drop-shadow(0 0 25px rgba(255,255,255,0.3)); }
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: var(--space-xl);
  text-align: center;
  position: relative;
  color: var(--text-primary);
  text-shadow: 0 0 30px rgba(255,255,255,0.2);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.subtitle {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 400;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fadeInUp 1s ease-out 0.5s forwards;
}

.tech-text {
  font-family: 'Courier New', monospace;
  color: var(--highlight-color);
  font-weight: 600;
  text-shadow: 0 0 15px var(--highlight-shadow);
  background: var(--highlight-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--highlight-border);
}

/* ==========================================
   Enhanced Layout Components
   ========================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.hero {
  background: var(--gradient-bg);
  padding: 150px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
  pointer-events: none;
  animation: gridPulse 4s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

/* Floating DNA Helix Animation */
.dna-helix {
  position: absolute;
  right: 10%;
  top: 50%;
  transform: translateY(-50%);
  width: 200px;
  height: 300px;
  opacity: 0.1;
  animation: dnaRotate 10s linear infinite;
}

@keyframes dnaRotate {
  0% { transform: translateY(-50%) rotateY(0deg); }
  100% { transform: translateY(-50%) rotateY(360deg); }
}

/* ==========================================
   Enhanced Navigation
   ========================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
  padding: var(--space-sm) 0;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: all var(--transition-normal);
}

.nav-brand:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 10px rgba(0,122,255,0.5));
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  background: rgba(0,122,255,0.1);
  transform: translateY(-1px);
}

/* ==========================================
   Enhanced Buttons
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-smooth);
  font-size: 0.95rem;
  line-height: 1;
  position: relative;
  overflow: hidden;
  background: transparent;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,122,255,0.3), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #34495e 0%, #2c3e50 100%);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  border-color: rgba(255,255,255,0.4);
}

.btn-secondary {
  background: var(--bg-glass);
  border: 2px solid var(--border-primary);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-mirror);
}

.btn-secondary:hover {
  background: #f8f9fa;
  color: var(--text-primary);
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-frosted);
  border-color: var(--border-strong);
}

.btn-large {
  padding: var(--space-lg) var(--space-xl);
  font-size: 1.2rem;
  border-radius: var(--radius-lg);
}

.btn-mirror {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.5rem;
  background: transparent;
  border: 3px solid #ffffff;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Times New Roman', Times, serif;
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  transition: all var(--transition-smooth);
  position: relative;
  min-height: 60px;
}

.btn-mirror:hover {
  transform: translateY(-2px);
  border-color: #ffffff;
  box-shadow: 0 4px 20px rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
}

/* Compact cards for Why Use section */
#why .card {
  padding: var(--space-lg);
  font-size: 0.95rem;
}

#why .card-title {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
}

#why .card-description {
  font-size: 0.9rem;
  line-height: 1.5;
}

#why .tech-border {
  padding: 0.8rem;
  margin-top: 0.8rem;
}

#why .tech-text {
  font-size: 0.85rem;
}

.btn-tech {
  background: var(--gradient-secondary);
  color: white;
  box-shadow: 0 0 20px rgba(0,212,255,0.3);
  animation: techPulse 2s ease-in-out infinite;
}

@keyframes techPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0,212,255,0.3); }
  50% { box-shadow: 0 0 30px rgba(0,212,255,0.6); }
}

/* ==========================================
   Enhanced Cards with Fold Effects
   ========================================== */
.card {
  background: var(--gradient-frosted);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  backdrop-filter: blur(20px);
  transition: all var(--transition-smooth);
  height: 100%;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-mirror);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  background: rgba(0,122,255,0.05);
  border-color: var(--accent-blue);
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0,122,255,0.2);
}

.card-expandable {
  transition: all var(--transition-slow);
}

.card-expandable.expanded {
  transform: scale(1.05);
  z-index: 10;
}

.card-content {
  transition: all var(--transition-normal);
}

.card-expanded-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.card-expandable.expanded .card-expanded-content {
  max-height: 200px;
  padding-top: var(--space-md);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: block;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  transition: color var(--transition-normal);
  font-family: 'Crimson Text', 'Times New Roman', Times, serif;
  letter-spacing: -0.01em;
}

.card:hover .card-title {
  color: var(--highlight-color);
  text-shadow: 0 0 15px var(--highlight-shadow);
}

.card-description {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

/* ==========================================
   Enhanced Grid Layouts
   ========================================== */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.grid-2x2 {
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Staggered Animation for Grid Items */
.grid .card {
  opacity: 0;
  transform: translateY(50px);
  animation: gridItemAppear 0.6s ease-out forwards;
}

.grid .card:nth-child(1) { animation-delay: 0.1s; }
.grid .card:nth-child(2) { animation-delay: 0.2s; }
.grid .card:nth-child(3) { animation-delay: 0.3s; }
.grid .card:nth-child(4) { animation-delay: 0.4s; }
.grid .card:nth-child(5) { animation-delay: 0.5s; }
.grid .card:nth-child(6) { animation-delay: 0.6s; }

@keyframes gridItemAppear {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================
   Enhanced Feature Sections
   ========================================== */
.features {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
}

.workflow {
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
  position: relative;
}

.workflow-step {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--gradient-frosted);
  border: 2px solid var(--border-primary);
  transition: all var(--transition-smooth);
  opacity: 0;
  transform: translateX(-50px);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-mirror);
}

.workflow-step.animate {
  opacity: 1;
  transform: translateX(0);
}

.workflow-step:hover {
  background: rgba(0,122,255,0.05);
  border-color: var(--accent-blue);
  transform: translateX(10px);
  box-shadow: 0 12px 40px rgba(0,122,255,0.2);
}

.workflow-number {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.8rem;
  color: white;
  flex-shrink: 0;
  position: relative;
  box-shadow: var(--shadow-glow);
}

.workflow-number::before {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  opacity: 0.3;
  animation: numberPulse 2s ease-in-out infinite;
}

@keyframes numberPulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.6; }
}

.workflow-content h3 {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  font-size: 1.3rem;
  font-weight: 700;
}

.workflow-content p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================
   Enhanced Streamlit Integration
   ========================================== */
.streamlit-launcher {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  z-index: 1000;
  transition: all var(--transition-smooth);
  text-decoration: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
  animation: launcherPulse 3s ease-in-out infinite;
  backdrop-filter: blur(20px);
}

@keyframes launcherPulse {
  0%, 100% { 
    transform: scale(1);
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
    border-color: rgba(255,255,255,0.3);
  }
  50% { 
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.4);
  }
}

.streamlit-launcher:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.4);
  animation: none;
}

.streamlit-launcher::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border-radius: var(--radius-full);
  background: var(--gradient-secondary);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.streamlit-launcher:hover::before {
  opacity: 0.7;
}

/* Streamlit Status Indicator */
.streamlit-status {
  position: absolute;
  top: -5px;
  right: -5px;
  width: 20px;
  height: 20px;
  background: var(--gradient-mirror);
  border-radius: var(--radius-full);
  border: 2px solid var(--border-strong);
  animation: statusBlink 2s ease-in-out infinite;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-mirror);
}

@keyframes statusBlink {
  0%, 100% { 
    opacity: 1; 
    box-shadow: var(--shadow-mirror);
  }
  50% { 
    opacity: 0.6; 
    box-shadow: var(--shadow-frosted);
  }
}

/* ==========================================
   Enhanced Footer
   ========================================== */
.footer {
  background: var(--bg-secondary);
  padding: var(--space-3xl) 0 var(--space-lg);
  border-top: 1px solid var(--border-primary);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-lg);
  animation: footerGlow 4s ease-in-out infinite;
}

@keyframes footerGlow {
  0%, 100% { filter: drop-shadow(0 0 10px rgba(0,122,255,0.3)); }
  50% { filter: drop-shadow(0 0 20px rgba(48,209,88,0.5)); }
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.footer-link:hover {
  color: var(--accent-blue);
  background: rgba(0,122,255,0.1);
  transform: translateY(-2px);
  text-shadow: 0 0 10px rgba(0,122,255,0.3);
}

/* ==========================================
   Advanced Animations
   ========================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

.scale-in {
  animation: scaleIn 0.6s ease-out;
}

/* ==========================================
   Collapsible Sections
   ========================================== */
.collapsible {
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  background: var(--bg-glass);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.collapsible:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-tech);
}

.collapsible-header {
  padding: var(--space-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  transition: all var(--transition-normal);
}

.collapsible-header:hover {
  background: var(--bg-card-hover);
}

.collapsible-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.collapsible-icon {
  transition: transform var(--transition-normal);
  color: var(--accent-blue);
}

.collapsible.active .collapsible-icon {
  transform: rotate(180deg);
}

.collapsible-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.collapsible.active .collapsible-content {
  max-height: 1000px;
}

.collapsible-body {
  padding: var(--space-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================
   Utility Classes
   ========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }

.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 2px solid var(--border-primary);
  box-shadow: var(--shadow-mirror);
}

.glow {
  box-shadow: var(--shadow-glow);
}

.tech-border {
  border: 2px solid var(--border-strong);
  box-shadow: var(--shadow-mirror);
  background: var(--bg-frosted);
  backdrop-filter: blur(15px);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 1024px) {
  .workflow-step {
    flex-direction: column;
    text-align: center;
    gap: var(--space-lg);
  }
  
  .dna-helix {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .hero {
    padding: 100px 0;
    min-height: 80vh;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .workflow-step {
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
  }
  
  .workflow-number {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .streamlit-launcher {
    bottom: var(--space-md);
    right: var(--space-md);
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
}

@media (max-width: 480px) {
  .grid-2,
  .grid-2x2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .hero-title {
    font-size: clamp(2rem, 6vw, 3rem);
  }
  
  .btn-large {
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
  }
}

/* ==========================================
   Loading Animations
   ========================================== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity var(--transition-slow);
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 3px solid var(--border-primary);
  border-top: 3px solid var(--accent-blue);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loaded .loading-overlay {
  opacity: 0;
  pointer-events: none;
}

/* ==========================================
   WordPress Color Override - Force No Purple
   ========================================== */
.has-vivid-purple-color {
  color: #d0d0d0 !important;
}

.has-vivid-purple-background-color {
  background-color: #d0d0d0 !important;
}

.has-vivid-purple-border-color {
  border-color: #d0d0d0 !important;
}

.has-vivid-cyan-blue-to-vivid-purple-gradient-background {
  background: linear-gradient(135deg, #c7d2fe 0%, #d0d0d0 100%) !important;
}

.has-blush-light-purple-gradient-background {
  background: linear-gradient(135deg, #f0f6ff 0%, #d0d0d0 100%) !important;
}

/* Force override any purple colors */
*[style*="#9b51e0"],
*[style*="rgb(155,81,224)"],
*[style*="rgba(155,81,224"] {
  color: #d0d0d0 !important;
  background-color: transparent !important;
  border-color: #d0d0d0 !important;
}

/* Additional WordPress Purple Overrides */
:root {
  --wp--preset--color--vivid-purple: #d0d0d0 !important;
}

/* Override all WordPress purple gradients */
.has-vivid-cyan-blue-to-vivid-purple-gradient-background,
[style*="vivid-cyan-blue-to-vivid-purple"],
[style*="rgba(6,147,227,1)"][style*="rgb(155,81,224)"] {
  background: linear-gradient(135deg, #c7d2fe 0%, #d0d0d0 100%) !important;
}

/* Force override any element with purple */
* {
  --wp--preset--color--vivid-purple: #d0d0d0 !important;
} 

/* Enhanced hover effects for darker theme */
.btn:hover,
.btn-primary:hover,
.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
    background-color: #1a2d5a !important;
}

.btn-mirror:hover {
    background-color: rgba(31, 49, 111, 0.1) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(31, 49, 111, 0.2);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(31, 49, 111, 0.15);
    background-color: rgba(31, 49, 111, 0.05);
}

.nav-link:hover {
    color: #1a2d5a !important;
    text-shadow: 0 0 8px rgba(31, 49, 111, 0.3);
} 

/* ==========================================
   Team Members Styling
   ========================================== */
.team-members {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.team-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 180px;
  max-width: 220px;
}

.member-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  overflow: hidden;
  position: relative;
  border: 3px solid rgba(255, 255, 255, 0.1);
}

.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.member-avatar:hover img {
  transform: scale(1.05);
}

.member-avatar:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.member-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
  line-height: 1.2;
}

.member-university {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 0.3rem 0;
  line-height: 1.3;
}

.member-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.2;
  font-style: italic;
}

/* Responsive design for team members */
@media (max-width: 768px) {
  .team-members {
    gap: 1.5rem;
  }
  
  .team-member {
    min-width: 140px;
    max-width: 160px;
  }
  
  .member-avatar {
    width: 80px;
    height: 80px;
    font-size: 2rem;
  }
  
  .member-name {
    font-size: 1rem;
  }
  
  .member-university {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .team-members {
    gap: 1rem;
  }
  
  .team-member {
    min-width: 100px;
    max-width: 120px;
  }
  
  .member-avatar {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .member-name {
    font-size: 0.9rem;
  }
  
  .member-university {
    font-size: 0.8rem;
  }
}