styles.css

/* T5: Robust CSS custom properties scoping */
html {
  /* Default dark theme */
  --primary-color: #00ffc2;
  --secondary-color: #1a73e8;
  --accent-color: #ff6b35;
  --success-color: #00d4aa;
  --warning-color: #ffb347;
  --error-color: #ff6b6b;
  --dark-bg: #050505;
  --card-bg: #111111;
  --glass-bg: rgba(17, 17, 17, 0.85);
  --text-primary: #f8f9fa;
  --text-secondary: #e8eaed;
  --text-muted: #9aa0a6;
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-secondary: linear-gradient(135deg, var(--accent-color), var(--warning-color));
  --gradient-dark: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
  --shadow-glow: 0 0 30px rgba(0, 255, 204, 0.3);
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.3);
  --border-radius: 16px;
  --border-radius-small: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --navbar-height: 100px;
  --max-width: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
}

html[data-theme="light"] {
  --primary-color: #007bb5;
  --secondary-color: #e81a73;
  --accent-color: #356bff;
  --success-color: #008f72;
  --warning-color: #d17c00;
  --error-color: #d32f2f;
  --dark-bg: #f8f9fa;
  --card-bg: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-muted: #6c757d;
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-secondary: linear-gradient(135deg, var(--accent-color), var(--warning-color));
  --gradient-dark: linear-gradient(135deg, #e9ecef, #dee2e6, #ced4da);
  --shadow-glow: 0 0 30px rgba(0, 123, 181, 0.15);
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.08);
}
/* Corax CoLAB Styles v2.0 */


/* Reset and base styles */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

/* Animated background */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: var(--gradient-dark);
  opacity: 0.9;
}

.background-animation::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300ffcc' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  animation: float 20s infinite linear;
}

@keyframes float {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
  }
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  padding: 12px 0; /* Increased padding to accommodate logo */
  border-bottom: 1px solid rgba(0, 255, 204, 0.2);
  transition: var(--transition);
  min-height: var(--navbar-height); /* Ensure minimum height */
}

nav.scrolled {
  background: rgba(10, 10, 10, 0.98);
  box-shadow: var(--shadow-soft);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.5rem;
  font-weight: 700;
  background: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-small);
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(0, 255, 204, 0.3));
  transition: var(--transition);
}

.logo-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo:hover {
  transform: scale(1.05);
  background: rgba(0, 255, 204, 0.1);
}

.logo:hover .logo-img {
  filter: drop-shadow(0 0 15px rgba(0, 255, 204, 0.6));
  transform: rotate(5deg);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-small);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-links a:hover {
  color: var(--primary-color);
  background: rgba(0, 255, 204, 0.1);
}

.nav-links a:hover::after {
  width: 80%;
}

  background: rgba(0, 255, 204, 0.1);
  color: var(--primary-color);
  transform: scale(1.05);
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-small);
  transition: var(--transition);
}

.theme-toggle:hover {
  background: rgba(0, 255, 204, 0.1);
  color: var(--primary-color);
  transform: scale(1.1);
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-small);
  transition: var(--transition);
  flex-direction: column;
  justify-content: space-around;
  width: 24px;
  height: 24px;
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
  transform-origin: center;
}

.mobile-menu-btn:hover {
  background: rgba(0, 255, 204, 0.1);
}

.mobile-menu-btn:hover span {
  background: var(--primary-color);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile navigation overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-slow);
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  text-align: center;
}

.mobile-nav-content a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 600;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
}

.mobile-nav-content a::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
  transform: translateX(-50%);
}

.mobile-nav-content a:hover {
  color: var(--primary-color);
  background: rgba(0, 255, 204, 0.1);
}

.mobile-nav-content a:hover::before {
  width: 80%;
}

/* Mobile navigation controls */
.mobile-nav-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(0, 255, 204, 0.2);
}


/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: flex-start; /* Changed from center to flex-start */
  justify-content: center;
  text-align: center;
  padding: 80px var(--spacing-md) var(--spacing-lg); /* Reduced top padding since we use margin-top instead */
  position: relative;
  background: url("images/hero-bg.svg") center/cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 255, 204, 0.15) 0%,
    rgba(0, 102, 255, 0.1) 50%,
    transparent 80%
  );
  pointer-events: none;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 10, 0.4);
  pointer-events: none;
}

.hero-content {
  max-width: 900px;
  z-index: 2;
  animation: fadeInUp 1s ease-out;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 150px; /* Extra 30px (~1cm) to push content further down */
}

.hero-logo {
  margin-bottom: var(--spacing-lg);
  margin-top: var(--spacing-md);
  animation: fadeInUp 1s 0.2s ease-out both;
}

.hero-logo-img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(0, 255, 204, 0.4));
  animation: float 3s ease-in-out infinite alternate;
}

@keyframes float {
  from {
    transform: translateY(0px) rotate(0deg);
  }
  to {
    transform: translateY(-10px) rotate(5deg);
  }
}

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

.hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  animation: gradientShift 3s ease-in-out infinite alternate;
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}

.hero-subtitle {
  font-size: clamp(1.2rem, 3vw, 2rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  font-weight: 300;
  animation: fadeInUp 1s 0.3s ease-out both;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
  animation: fadeInUp 1s 0.6s ease-out both;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 1s 0.9s ease-out both;
}

.cta-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: var(--transition);
}

.cta-button:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 50px rgba(0, 255, 204, 0.6);
}

.cta-button:hover::before {
  left: 100%;
}

/* Sections */
section {
  padding: var(--spacing-xl) 0;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
  scroll-margin-top: var(
    --navbar-height
  ); /* Ensures smooth scroll accounts for fixed navbar */
}

.section-title {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  width: 80px;
  height: 3px;
  background: var(--gradient-primary);
  transform: translateX(-50%);
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
 max-width: 800px; margin-left: auto; margin-right: auto; font-size: 1.25rem; font-weight: 400; }

/* Grid layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

/* Feature Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid rgba(0, 255, 204, 0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.feature-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, transparent, rgba(0, 255, 204, 0.05));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-color);
  box-shadow: 0 20px 40px rgba(0, 255, 204, 0.2);
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-illustration {
  width: 100%;
  height: 200px;
  margin-bottom: var(--spacing-sm);
  border-radius: var(--border-radius-small);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.2);
}

.feature-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  filter: brightness(0.9);
}

.feature-card:hover .feature-img {
  transform: scale(1.05);
  filter: brightness(1);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  display: block;
  filter: drop-shadow(0 0 10px rgba(0, 255, 204, 0.3));
  position: relative;
  z-index: 2;
}

.feature-card h3 {
  color: var(--primary-color);
  font-size: 1.3rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Project Cards */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.project-card {
  background: var(--card-bg);
  border: 1px solid rgba(0, 255, 204, 0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.project-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius);
  z-index: -1;
  opacity: 0;
  transition: var(--transition);
}

.project-card:hover::before {
  opacity: 1;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 255, 204, 0.3);
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.project-card h3 {
  color: var(--primary-color);
  font-size: 1.4rem;
  font-weight: 600;
}

.project-card h3 a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

.project-card h3 a:hover {
  color: white;
  text-shadow: 0 0 10px rgba(0, 255, 204, 0.5);
}

.project-stats {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--text-muted);
  align-items: center;
}

.project-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.tag {
  background: rgba(0, 255, 204, 0.1);
  color: var(--primary-color);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(0, 255, 204, 0.3);
  transition: var(--transition);
}

.tag:hover {
  background: rgba(0, 255, 204, 0.2);
  transform: scale(1.05);
}

.project-links {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
}

.project-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.6rem;
  border-radius: var(--border-radius-small);
}

.project-link:hover {
  color: var(--primary-color);
  background: rgba(0, 255, 204, 0.1);
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.stat-card {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--card-bg);
  border-radius: var(--border-radius);
  border: 1px solid rgba(0, 255, 204, 0.2);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 255, 204, 0.05), transparent);
  opacity: 0;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary-color);
  display: block;
  text-shadow: 0 0 20px rgba(0, 255, 204, 0.3);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-top: var(--spacing-xs);
  font-weight: 500;
}

/* Loading States */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-lg);
  color: var(--text-secondary);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0, 255, 204, 0.3);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: var(--spacing-sm);
}

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

.error-message {
  text-align: center;
  color: var(--error-color);
  padding: var(--spacing-md);
  background: rgba(255, 107, 107, 0.1);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 107, 107, 0.3);
  margin: var(--spacing-md) 0;
}

.success-message {
  text-align: center;
  color: var(--success-color);
  padding: var(--spacing-md);
  background: rgba(0, 212, 170, 0.1);
  border-radius: var(--border-radius);
  border: 1px solid rgba(0, 212, 170, 0.3);
  margin: var(--spacing-md) 0;
}

/* Footer */
footer {
  background: var(--card-bg);
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
  border-top: 1px solid rgba(0, 255, 204, 0.2);
  margin-top: var(--spacing-xl);
  position: relative;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent, rgba(0, 255, 204, 0.02));
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

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

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-small);
}

.footer-links a:hover {
  color: var(--primary-color);
  background: rgba(0, 255, 204, 0.1);
}

/* Animation Classes */
.animate-ready {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}

.animate-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.pulse-animation {
  animation: pulse 2s infinite;
}

/* Light Theme Support */
[data-theme="light"] {
  --dark-bg: #ffffff;
  --card-bg: #f8f9fa;
  --glass-bg: rgba(248, 249, 250, 0.8);
  --text-primary: #1a1a1a;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --gradient-dark: linear-gradient(135deg, #f7fafc, #edf2f7, #e2e8f0);
  --border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .background-animation {
  background: var(--gradient-dark);
}

[data-theme="light"] .background-animation::before {
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300ffcc' fill-opacity='0.1'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

[data-theme="light"] nav {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .feature-card,
[data-theme="light"] .project-card,
[data-theme="light"] .stat-card {
  background: var(--card-bg);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .feature-card:hover,
[data-theme="light"] .project-card:hover,
[data-theme="light"] .stat-card:hover {
  box-shadow: 0 8px 25px rgba(0, 255, 204, 0.15);
}

/* Utility Classes */
.glassmorphism {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.gradient-border {
  position: relative;
  background: var(--card-bg);
}

.gradient-border::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 2px;
  background: var(--gradient-primary);
  border-radius: inherit;
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: xor;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Enhanced project card styles */
.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-sm);
}

.project-updated {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

.stat-item {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.stat-item.active {
  color: var(--primary-color);
  font-weight: 600;
}

/* Enhanced button styles */
.logo {
  background: none !important;
  border: none;
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary) !important;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  cursor: pointer;
  transition: var(--transition);
  padding: var(--spacing-xs);
  border-radius: var(--border-radius-small);
}

.logo:hover {
  transform: scale(1.05);
  background: var(--gradient-secondary) !important;
  -webkit-background-clip: text;
  background-clip: text;
}

/* Loading improvements */
.loading {
  flex-direction: column;
  gap: var(--spacing-sm);
}

.loading-text {
  font-weight: 500;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus styles */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Enhanced Responsive Design */
@media (max-width: 1200px) {
  .nav-container,
  section {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
}

@media (max-width: 1024px) {


  .hero::before {
    background: radial-gradient(
      ellipse at center,
      rgba(0, 255, 204, 0.08) 0%,
      transparent 60%
    );
  }
}

@media (max-width: 768px) {


  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .logo-img {
    width: 28px;
    height: 28px;
  }

  .hero {
    min-height: 80vh;
    padding: 120px var(--spacing-sm) var(--spacing-xl); /* Adjusted for mobile */
    align-items: flex-start; /* Ensure top alignment on mobile too */
  }

  .hero-content {
    margin-top: 40px; /* Less margin on mobile */
  }

  .hero-logo-img {
    width: 90px;
    height: 90px;
  }

  .hero-logo {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
  }

  .hero h1 {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .hero-subtitle {
    font-size: clamp(1rem, 4vw, 1.5rem);
  }

  .features-grid,
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .feature-illustration {
    height: 150px;
  }

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

  section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .project-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .project-stats {
    align-self: stretch;
    justify-content: flex-start;
  }

  .project-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .project-links {
    order: 2;
  }

  .project-updated {
    order: 1;
    align-self: flex-end;
  }

  .section-title {
    font-size: clamp(1.8rem, 6vw, 2.2rem);
  }

  .cta-button {
    font-size: 1rem;
    padding: 0.8rem 1.5rem;
  }
}

@media (max-width: 480px) {


  .logo-img {
    width: 24px;
    height: 24px;
  }

  .hero-logo-img {
    width: 70px;
    height: 70px;
  }

  .hero-content {
    margin-top: 100px; /* Extra margin on mobile for better clearance */
  }

  .feature-illustration {
    height: 120px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .project-tags {
    gap: 0.3rem;
  }

  .tag {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
  }

  .mobile-nav-content a {
    font-size: 1.3rem;
  }

  nav {
    padding: 0.8rem 0;
  }

  section {
    scroll-margin-top: 100px; /* Updated for new navbar height */
  }

  .nav-container {
    padding: 0 var(--spacing-sm);
  }
}


/* Dark mode support (default) */
@media (prefers-color-scheme: light) {
  /* Could add light mode styles here if desired */
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .background-animation::before {
    animation: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {

}

/* Print styles */
@media print {
  .background-animation,
  .cta-button,
  nav,
  .mobile-menu-btn {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .feature-card,
  .project-card,
  .stat-card {
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }
}
/* Custom additions for Deep Tech Polish */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px var(--spacing-md) var(--spacing-lg);
  position: relative;
  background: #000;
  overflow: hidden;
}

.hero-bg-video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, #0d1b2a 0%, #000 70%);
  z-index: 0;
  opacity: 0.8;
}

.hero-bg-video-placeholder::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(
      0deg,
      transparent 24%,
      rgba(255, 255, 255, 0.05) 25%,
      rgba(255, 255, 255, 0.05) 26%,
      transparent 27%,
      transparent 74%,
      rgba(255, 255, 255, 0.05) 75%,
      rgba(255, 255, 255, 0.05) 76%,
      transparent 77%,
      transparent
    ),
    linear-gradient(
      90deg,
      transparent 24%,
      rgba(255, 255, 255, 0.05) 25%,
      rgba(255, 255, 255, 0.05) 26%,
      transparent 27%,
      transparent 74%,
      rgba(255, 255, 255, 0.05) 75%,
      rgba(255, 255, 255, 0.05) 76%,
      transparent 77%,
      transparent
    );
  background-size: 50px 50px;
  opacity: 0.2;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #fff;
  background: none; /* override gradient */
  -webkit-text-fill-color: initial;
}

.hero-subtitle {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-description {
  font-size: 1.15rem;
  color: #a0a0a0;
  margin-bottom: 2.5rem;
  line-height: 1.6;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.primary-cta {
  background: #fff;
  color: #000;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.primary-cta:hover {
  background: #e0e0e0;
  color: #000;
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

.primary-cta::before {
  display: none;
}

.secondary-cta {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.secondary-cta:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* Feature cards tech polish */
.tech-icon-wrapper {
  font-size: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
  background: radial-gradient(
    circle at center,
    rgba(0, 255, 194, 0.1) 0%,
    transparent 70%
  );
  border-radius: 50%;
}

.product-card {
  text-align: left;
  align-items: flex-start;
  border-top: 3px solid var(--primary-color);
}
.product-card h3 {
  font-size: 1.8rem;
}

/* Base typography refinements */
body {
  font-family:
    "Inter",
    -apple-system,
    sans-serif;
  letter-spacing: -0.01em;
}

.section-title {
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}
.section-title::after {
  background: var(--primary-color);
}

/* Remove gradient border from feature cards for cleaner look */
.feature-card::before {
  display: none;
}
.feature-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(17, 17, 17, 0.6);
}

/* Additional deep-tech styling applied for marketing update */
.hero {
  background: radial-gradient(circle at 50% 50%, #0d1b2a 0%, #000 100%);
  overflow: hidden;
}

.hero-bg-video-placeholder::after {
  opacity: 0.1;
  background-size: 40px 40px;
}

.product-card {
  background: linear-gradient(180deg, rgba(17, 17, 17, 0.9), rgba(5, 5, 5, 1));
  border: 1px solid rgba(0, 255, 194, 0.15);
  border-top: 4px solid var(--primary-color);
}

.product-card:hover {
  border-color: rgba(0, 255, 194, 0.5);
  box-shadow: 0 10px 30px rgba(0, 255, 194, 0.1);
}

.tech-icon-wrapper {
  font-size: 3.5rem;
  background: radial-gradient(
    circle at center,
    rgba(0, 255, 194, 0.15) 0%,
    transparent 60%
  );
}

#featured .projects-grid {
  margin-bottom: 3rem;
}

#featured .project-card {
  background: linear-gradient(145deg, #111 0%, #050505 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

#featured .project-card:hover {
  border-color: rgba(0, 255, 194, 0.3);
}

.hero h1 {
  text-shadow: 0 0 40px rgba(0, 255, 194, 0.2);
}

.logo-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 900;
  letter-spacing: -0.05em;
}

footer {
  background: #000;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Custom Cursor */
body {
  cursor: none;
}

.custom-cursor {
  width: 20px;
  height: 20px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  position: fixed;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 9999;
  transition:
    width 0.2s,
    height 0.2s,
    background-color 0.2s;
}

.custom-cursor.hover {
  width: 40px;
  height: 40px;
  background-color: rgba(0, 255, 194, 0.2);
  border-color: transparent;
}

/* Theme Customizer */
#theme-customizer {
  background: rgba(17, 17, 17, 0.85);
  padding: 10px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
}

.theme-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: none;
  transition:
    transform 0.2s,
    border-color 0.2s;
}

.theme-btn:hover {
  transform: scale(1.1);
  border-color: #fff;
}

/* GitHub Activity Feed */
.activity-item {
  background: var(--card-bg);
  padding: 1rem;
  border-radius: var(--border-radius-small);
  border-left: 4px solid var(--primary-color);
  box-shadow: var(--shadow-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform 0.2s;
}

.activity-item:hover {
  transform: translateX(5px);
}

.activity-date {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.activity-action {
  color: var(--text-primary);
}

.activity-action a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: bold;
}

.activity-action a:hover {
  text-decoration: underline;
}

/* Interactive Architecture Diagram */
.arch-node {
  position: absolute;
  transform: translate(-50%, -50%);
  background: var(--dark-bg);
  color: var(--primary-color);
  padding: 1rem 2rem;
  border-radius: 50px;
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 10px rgba(0, 255, 194, 0.5);
  cursor: pointer; /* Changed to pointer to ensure interactive feel */
  transition:
    transform 0.3s,
    box-shadow 0.3s,
    background 0.3s;
  z-index: 100; /* Increased z-index to ensure it is above other elements */
  font-weight: bold;
  text-align: center;
  pointer-events: auto; /* Force pointer events */
}

.arch-node:hover {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: var(--shadow-glow);
  background: rgba(0, 255, 194, 0.1);
}

/* =========================================
   5 NEW WORLD CLASS FEATURES STYLES
   ========================================= */

/* Feature 1: Interactive Neural Network Canvas */
#neural-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.6;
}

/* Feature 2: Custom Cursor */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  background-color: var(--primary-color);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.2s ease, width 0.2s ease, height 0.2s ease, background-color 0.2s ease;
  mix-blend-mode: difference;
}

.custom-cursor-follower {
  position: fixed;
  top: 0;
  left: 0;
  width: 40px;
  height: 40px;
  border: 1px solid var(--primary-color);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.1s ease-out, width 0.2s ease, height 0.2s ease;
  will-change: transform;
}

.cursor-hover .custom-cursor {
  transform: translate(-50%, -50%) scale(2.5);
  background-color: rgba(255, 255, 255, 0.8);
}

.cursor-hover .custom-cursor-follower {
  width: 60px;
  height: 60px;
  border-color: rgba(255, 255, 255, 0.4);
}

/* Feature 3: 3D Tilt Cards with Glare */
.tilt-card {
  transform-style: preserve-3d;
  transform: perspective(1000px);
  will-change: transform;
  position: relative;
  overflow: hidden;
  transition: transform 0.1s;
}

.tilt-card .glare {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 10;
  mix-blend-mode: overlay;
}

/* Keep card content above the glare */
.tilt-card > * {
  position: relative;
  z-index: 2;
  transform: translateZ(30px);
}

.tilt-card::before {
  z-index: 1;
}
.tilt-card::after {
  z-index: 1;
}

/* Feature 4: Glitch Text Effect */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.8;
}

.glitch::before {
  left: 2px;
  text-shadow: -2px 0 var(--error-color);
  clip: rect(24px, 550px, 90px, 0);
  animation: glitch-anim 3s infinite linear alternate-reverse;
}

.glitch::after {
  left: -2px;
  text-shadow: -2px 0 var(--primary-color);
  clip: rect(85px, 550px, 140px, 0);
  animation: glitch-anim 2.5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
  0% { clip: rect(10px, 9999px, 86px, 0); transform: translate(0); }
  10% { clip: rect(80px, 9999px, 4px, 0); transform: translate(-2px, 2px); }
  20% { clip: rect(32px, 9999px, 55px, 0); transform: translate(2px, -2px); }
  30% { clip: rect(62px, 9999px, 90px, 0); transform: translate(-2px, 2px); }
  40% { clip: rect(15px, 9999px, 25px, 0); transform: translate(2px, -2px); }
  50% { clip: rect(45px, 9999px, 70px, 0); transform: translate(-2px, 2px); }
  60% { clip: rect(85px, 9999px, 15px, 0); transform: translate(2px, -2px); }
  70% { clip: rect(20px, 9999px, 35px, 0); transform: translate(-2px, 2px); }
  80% { clip: rect(50px, 9999px, 60px, 0); transform: translate(2px, -2px); }
  90% { clip: rect(75px, 9999px, 40px, 0); transform: translate(-2px, 2px); }
  100% { clip: rect(5px, 9999px, 95px, 0); transform: translate(0); }
}

/* Glitch on hover for logos and titles */
.logo:hover .logo-text,
.section-title:hover {
  animation: text-glitch 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
  color: var(--primary-color);
}

@keyframes text-glitch {
  0% { transform: translate(0); text-shadow: none; }
  20% { transform: translate(-2px, 2px); text-shadow: 2px -2px var(--error-color), -2px 2px var(--secondary-color); }
  40% { transform: translate(-2px, -2px); text-shadow: 2px 2px var(--error-color), -2px -2px var(--secondary-color); }
  60% { transform: translate(2px, 2px); text-shadow: -2px -2px var(--error-color), 2px 2px var(--secondary-color); }
  80% { transform: translate(2px, -2px); text-shadow: -2px 2px var(--error-color), 2px -2px var(--secondary-color); }
  100% { transform: translate(0); text-shadow: none; }
}

/* Feature 5: Terminal Boot Sequence */
.terminal-boot-container {
  width: 100%;
  max-width: 600px;
  margin: 0 auto 2rem auto;
  background: rgba(5, 5, 5, 0.85);
  border: 1px solid rgba(0, 255, 194, 0.2);
  border-radius: var(--border-radius-small);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(0, 255, 194, 0.1);
  overflow: hidden;
  backdrop-filter: blur(5px);
  text-align: left;
}

.terminal-header {
  background: rgba(20, 20, 20, 0.9);
  padding: 8px 15px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(0, 255, 194, 0.1);
}

.terminal-buttons {
  display: flex;
  gap: 6px;
}

.terminal-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.terminal-btn.close { background-color: #ff5f56; }
.terminal-btn.min { background-color: #ffbd2e; }
.terminal-btn.max { background-color: #27c93f; }

.terminal-title {
  color: var(--text-muted);
  font-family: monospace;
  font-size: 0.85rem;
  margin-left: 15px;
  flex-grow: 1;
  text-align: center;
  margin-right: 48px;
}

.terminal-body {
  padding: 15px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9rem;
  color: #00ffcc;
  min-height: 150px;
  max-height: 250px;
  overflow-y: hidden;
  line-height: 1.5;
}

.terminal-line {
  margin-bottom: 5px;
  opacity: 0;
  animation: typeIn 0.1s forwards;
}

.terminal-line span.user {
  color: var(--secondary-color);
  font-weight: bold;
}

.terminal-line span.path {
  color: var(--text-primary);
  font-weight: bold;
}

.terminal-line.error {
  color: var(--error-color);
}

.terminal-line.success {
  color: var(--success-color);
}

.cursor-blink {
  display: inline-block;
  width: 8px;
  height: 15px;
  background-color: #00ffcc;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes typeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

/* Hide default cursor on desktop when custom cursor is active */
@media (pointer: fine) {
  body {
    cursor: none;
  }
  a, button, .cta-button, .logo, input, textarea {
    cursor: none;
  }
}

/* Interactive Terminal CSS enhancements */
.terminal-input-line {
  display: flex;
  align-items: center;
  color: #fff;
  font-family: monospace;
}
.terminal-input-line .prompt {
  color: var(--primary-color);
  margin-right: 8px;
}
#terminal-input {
  background: transparent;
  border: none;
  color: #fff;
  font-family: monospace;
  font-size: inherit;
  outline: none;
  width: 100%;
}
.terminal-line {
  white-space: pre-wrap; /* Preserve spaces for terminal output formatting */
}

/* Holographic 3D Glass Cards (Tilt + Glare) */
.tilt-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  transform-style: preserve-3d; /* Required for deep 3D children */
}

/* Inner elements pop out */
.tilt-card > * {
  transform: translateZ(30px);
}

.tilt-card-glare {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(255, 255, 255, 0.2) 0%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
  mix-blend-mode: overlay; /* Creates the "glassy" sheen */
}

.tilt-card:hover .tilt-card-glare {
  opacity: 1;
}

.terminal-boot-container { pointer-events: auto !important; z-index: 100 !important; }
.hero-content { z-index: 100 !important; pointer-events: auto !important; }

.terminal-body { pointer-events: auto !important; z-index: 101 !important; }

/* Light Mode Theme */
[data-theme="light"] {
  --primary-color: #007bb5;
  --secondary-color: #e81a73;
  --accent-color: #356bff;
  --success-color: #008f72;
  --warning-color: #d17c00;
  --error-color: #d32f2f;
  --dark-bg: #f8f9fa;
  --card-bg: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-muted: #6c757d;
  --gradient-primary: linear-gradient(135deg, #007bb5, #e81a73);
  --gradient-secondary: linear-gradient(135deg, #356bff, #d17c00);
  --gradient-dark: linear-gradient(135deg, #e9ecef, #dee2e6, #ced4da);
  --shadow-glow: 0 0 30px rgba(0, 123, 181, 0.15);
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] body {
  background-color: var(--dark-bg);
  color: var(--text-primary);
}

[data-theme="light"] .card,
[data-theme="light"] .project-card,
[data-theme="light"] .capability-card,
[data-theme="light"] .commit-card {
  background-color: var(--card-bg);
  box-shadow: var(--shadow-soft);
  border-color: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .navbar {
  background: var(--glass-bg);
  border-bottom-color: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .nav-links a {
  color: var(--text-secondary);
}

[data-theme="light"] .nav-links a:hover,
[data-theme="light"] .nav-links a.active {
  color: var(--primary-color);
}

[data-theme="light"] .hero-title {
  color: var(--text-primary);
  text-shadow: none;
}

[data-theme="light"] .section-title {
  color: var(--text-primary);
}

[data-theme="light"] .cta-button.secondary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

[data-theme="light"] .cta-button.secondary:hover {
  background: rgba(0, 123, 181, 0.1);
}

[data-theme="light"] .code-block {
  background: #f1f3f5;
  color: #212529;
  border-color: #dee2e6;
}

[data-theme="light"] .hologram-grid {
    background-size: 40px 40px;
    background-image:
      linear-gradient(to right, rgba(0, 123, 181, 0.1) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(0, 123, 181, 0.1) 1px, transparent 1px);
}

[data-theme="light"] footer {
    border-top-color: rgba(0,0,0,0.1);
}

/* Scroll Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Enhanced Hover Effects */
.capability-card,
.project-card,
.feature-item,
.repo-card {
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  position: relative;
  overflow: hidden;
}

.capability-card::before,
.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0) 100%);
  transform: skewX(-25deg);
  transition: left 0.6s ease;
  z-index: 1;
}

.capability-card:hover::before,
.project-card:hover::before {
  left: 200%;
}

.capability-card:hover,
.project-card:hover,
.repo-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 15px 40px rgba(0, 255, 194, 0.2);
  border-color: var(--primary-color);
}

.cta-button {
  position: relative;
  overflow: hidden;
  z-index: 1;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.cta-button::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--primary-color);
  z-index: -2;
}

.cta-button::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.2);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  z-index: -1;
}

.cta-button:hover::before {
  width: 100%;
}

.cta-button:active {
  transform: scale(0.95);
}

[data-theme="light"] .capability-card:hover,
[data-theme="light"] .project-card:hover,
[data-theme="light"] .repo-card:hover {
  box-shadow: 0 15px 40px rgba(0, 123, 181, 0.2);
}

/* Redesigned Hero Section */
.hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  position: relative;
  z-index: 10;
  background: rgba(17, 17, 17, 0.6);
  backdrop-filter: blur(12px);
  padding: 4rem 3rem;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  background: linear-gradient(to right, var(--text-primary), var(--primary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 2.5rem;
}

[data-theme="light"] .hero-content {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .hero-title {
  background: linear-gradient(to right, #1a1a1a, var(--primary-color));
  -webkit-background-clip: text;
  background-clip: text;
}

/* V3: Glowing Form Fields */
input[type="text"], input[type="email"], textarea {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(0, 255, 194, 0.3);
  color: var(--text-primary);
  padding: 10px 15px;
  border-radius: var(--border-radius-small);
  transition: all 0.3s ease;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
}

input[type="text"]:focus, input[type="email"]:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 15px rgba(0, 255, 194, 0.4), inset 0 0 10px rgba(0, 255, 194, 0.1);
  background: rgba(0, 255, 194, 0.05);
}

/* V4: Enhanced Navigation Bar (Pill Shape on Scroll) */
nav {
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  top: 0;
  width: 100%;
}

nav.scrolled {
  top: 20px;
  width: calc(100% - 40px);
  max-width: var(--max-width);
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50px;
  background: rgba(10, 10, 10, 0.85);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5), 0 0 15px rgba(0, 255, 194, 0.2);
  border: 1px solid rgba(0, 255, 194, 0.3);
  padding: 8px 0;
}

@media (max-width: 768px) {
  nav.scrolled {
    width: calc(100% - 20px);
    top: 10px;
    border-radius: 25px;
  }
}

/* Override input styling inside terminal to fit aesthetic */
#terminal-input {
  box-shadow: none !important;
  border: none !important;
  background: transparent !important;
  padding: 0 !important;
  caret-color: var(--primary-color);
}
#terminal-input:focus {
  box-shadow: none !important;
  background: transparent !important;
}

/* Mouse-Tracking Glow Cards */
.glow-card {
  position: relative;
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
  border-radius: var(--border-radius);
  z-index: 1;
}

.glow-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(
    to bottom right,
    rgba(255, 255, 255, 0.2),
    rgba(255, 255, 255, 0)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}

.glow-card::after {
  content: "";
  position: absolute;
  top: var(--mouse-y, 0);
  left: var(--mouse-x, 0);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle closest-side, rgba(0, 255, 194, 0.15), transparent);
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: -1;
}

.glow-card:hover::after {
  opacity: 1;
}

/* Featured Project Section - Agent-Commit Tracker */
.featured-project-container {
    background-color: var(--card-bg);
    border: 1px solid rgba(0, 255, 194, 0.2);
    border-radius: var(--border-radius);
    padding: 40px;
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    box-sizing: border-box;
    transition: var(--transition);
}

.featured-project-container:hover {
    border-color: rgba(0, 255, 194, 0.4);
    box-shadow: var(--shadow-glow);
}

#featured-project .header-section {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

#featured-project .icon-container {
    width: 64px;
    height: 64px;
    background-color: rgba(0, 255, 194, 0.1); /* Deep tech primary tint */
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(0, 255, 194, 0.4);
}

#featured-project .icon-container i {
    font-size: 32px;
    color: var(--primary-color);
}

#featured-project .project-title {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

#featured-project .project-subtitle {
    margin: 5px 0 0 0;
    font-size: 16px;
    color: var(--primary-color);
    font-family: monospace;
}

#featured-project .tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

#featured-project .badge {
    background-color: rgba(0, 255, 194, 0.05);
    border: 1px solid rgba(0, 255, 194, 0.3);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-family: monospace;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

#featured-project .badge:hover {
    background-color: rgba(0, 255, 194, 0.15);
    border-color: var(--primary-color);
}

#featured-project .badge i {
    font-size: 14px;
    color: var(--primary-color);
}

#featured-project .project-description {
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 16px;
}

#featured-project .features-list {
    list-style: none;
    padding: 0;
    margin: 0 0 35px 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

#featured-project .features-list li {
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(0, 255, 194, 0.1);
    padding: 20px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: var(--transition);
}

#featured-project .features-list li:hover {
    border-color: rgba(0, 255, 194, 0.3);
    background-color: rgba(0, 255, 194, 0.03);
}

#featured-project .features-list li i {
    color: var(--primary-color);
    font-size: 24px;
}

#featured-project .features-list li strong {
    color: var(--text-primary);
    font-size: 16px;
}

#featured-project .features-list li span {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.5;
}

#featured-project .action-buttons {
    display: flex;
    gap: 15px;
}

#featured-project .btn {
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    cursor: pointer;
}

#featured-project .btn-primary {
    background: var(--gradient-primary);
    color: var(--dark-bg);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 255, 194, 0.2);
}

#featured-project .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 255, 194, 0.4);
}

#featured-project .btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

#featured-project .btn-secondary:hover {
    background-color: rgba(0, 255, 194, 0.1);
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    #featured-project .header-section {
        flex-direction: column;
        align-items: flex-start;
    }
    #featured-project .action-buttons {
        flex-direction: column;
    }
    #featured-project .btn {
        justify-content: center;
    }
    .featured-project-container {
        padding: 20px;
    }
}


/* Accessibility Improvements */
.skip-link:focus {
  left: 50% !important;
  transform: translateX(-50%);
  top: 10px !important;
  outline: 2px solid var(--primary-color) !important;
  border-radius: 4px;
}

*:focus-visible {
  outline: 2px solid var(--primary-color) !important;
  outline-offset: 4px;
  border-radius: 2px;
}

/* Ensure minimum touch target size for mobile */
button,
.nav-links a {
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}