/* ===========================
   CSS RESET & BASE STYLES
   =========================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Modern Professional Color Palette */
  --primary-blue: #007bff;
  --primary-dark: #00346D;
  --secondary-blue: #0056b3;
  --accent-color: #38bdf8;
  --text-dark: #1f2937;
  --text-gray: #6b7280;
  --text-light: #9ca3af;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --bg-body: #f9fafb;
  --border-color: #e5e7eb;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --card-bg: #ffffff;
  --card-text: #1f2937;
  --navbar-bg: #00346D;
  --navbar-text: #ffffff;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Dark Mode Theme */
[data-theme="dark"] {
  --primary-blue: #38bdf8;
  --primary-dark: #1e293b;
  --secondary-blue: #60a5fa;
  --accent-color: #60a5fa;
  --text-dark: #f1f5f9;
  --text-gray: #cbd5e1;
  --text-light: #94a3b8;
  --bg-light: #0f172a;
  --bg-white: #1e293b;
  --bg-body: #0f172a;
  --border-color: #334155;
  --success-color: #34d399;
  --warning-color: #fbbf24;
  --card-bg: #1e293b;
  --card-text: #f1f5f9;
  --navbar-bg: #0f172a;
  --navbar-text: #f1f5f9;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  height: 100%;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-body);
  color: var(--text-dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
  display: block;
  position: relative;
}


/* ===========================
   PAGE LOADER
   =========================== */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-body);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

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

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1.5rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-text {
  color: var(--text-dark);
  font-size: 1.1rem;
  font-weight: 600;
  animation: pulse 1.5s ease-in-out infinite;
}

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

/* ===========================
   NAVIGATION
   =========================== */
.navbar {
  background-color: var(--primary-dark);
  padding: 0.75rem 3rem;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  flex: 0 0 auto;
}

.nav-container {
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand {
  color: #f8fafc;
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-normal);
}

.brand:hover {
  color: var(--accent-color);
}

.brand .logo {
  height: 40px;
  width: auto;
  transition: transform var(--transition-normal);
}

.brand:hover .logo {
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  color: #f8fafc;
  text-decoration: none;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font-weight: 500;
  transition: var(--transition-normal);
  display: block;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: #38bdf8;
}

.nav-links a:hover {
  background-color: rgba(56, 189, 248, 0.15);
}

.nav-links a.active {
  border-bottom: 3px solid #38bdf8;
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropbtn {
  cursor: pointer;
}

.dropdown .arrow {
  font-size: 0.7rem;
  margin-left: 0.3rem;
  transition: transform var(--transition-fast);
}

.dropdown:hover .arrow {
  transform: rotate(180deg);
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: var(--card-bg);
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  border-radius: 8px;
  z-index: 1001;
  top: 100%;
  left: 0;
  margin-top: 0;
  overflow: hidden;
  padding-top: 0.25rem;
}

.dropdown-content::before {
  content: '';
  position: absolute;
  top: -0.25rem;
  left: 0;
  right: 0;
  height: 0.25rem;
  background: transparent;
}

.dropdown-content a {
  color: var(--text-dark);
  padding: 0.8rem 1.2rem;
  display: block;
  transition: var(--transition-fast);
  border-radius: 0;
}

.dropdown-content a:hover,
.dropdown-content a.active {
  background-color: var(--primary-blue);
  color: white;
}

.dropdown:hover .dropdown-content,
.dropdown-content:hover {
  display: block;
  animation: fadeInDown 0.3s ease;
}

/* Theme Toggle Button */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: none;
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: var(--navbar-text);
  cursor: pointer;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.theme-toggle-icon {
  font-size: 1.2rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: #f8fafc;
  border-radius: 3px;
  transition: var(--transition-normal);
}

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

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

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

/* ===========================
   HERO SECTION - HOME PAGE
   =========================== */
.hero-home {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem 3rem;
  background: linear-gradient(135deg, var(--bg-body) 0%, var(--bg-light) 100%);
  position: relative;
  overflow: visible;
  transition: background var(--transition-normal);
}

.hero-home::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 120%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 70%);
  animation: float 20s infinite ease-in-out;
}

.hero-content {
  max-width: 900px;
  text-align: center;
  z-index: 1;
  animation: fadeInUp 1s ease;
}

.greeting {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
  animation: fadeIn 0.8s ease;
}

.typed-container {
  min-height: 50px;
  margin: 0.75rem 0;
}

.typed-text {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-dark);
  font-family: var(--font-mono);
}

.typed-cursor {
  font-size: 1.4rem;
  color: var(--primary-blue);
  animation: blink 1s infinite;
}

.main-name {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary-blue);
  margin: 0.75rem 0;
  letter-spacing: -0.5px;
  animation: fadeIn 1s ease 0.3s backwards;
}

.tagline {
  font-size: 1.1rem;
  color: var(--text-dark);
  max-width: 800px;
  margin: 0 auto 1.25rem;
  line-height: 1.5;
  animation: fadeIn 1s ease 0.5s backwards;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.25rem;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: all var(--transition-normal);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.cta-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.cta-btn:hover::before {
  width: 300px;
  height: 300px;
}

.cta-btn svg {
  position: relative;
  z-index: 1;
  transition: transform var(--transition-fast);
}

.cta-btn:hover svg {
  transform: scale(1.1);
}

.cta-btn:focus {
  outline: 3px solid var(--accent-color);
  outline-offset: 2px;
}

.cta-btn:active {
  transform: translateY(-1px) scale(0.98);
}

.cta-btn.primary {
  background-color: var(--primary-blue);
  color: white;
  border: 2px solid var(--primary-blue);
}

.cta-btn.primary:hover {
  background-color: var(--secondary-blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.cta-btn.secondary {
  background-color: white;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.cta-btn.secondary:hover {
  background-color: var(--primary-blue);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.cta-btn:nth-child(1) {animation-delay: 0.7s;}
.cta-btn:nth-child(2) {animation-delay: 0.85s;}
.cta-btn:nth-child(3) {animation-delay: 1s;}
.cta-btn:nth-child(4) {animation-delay: 1.15s;}

/* ===========================
   ENHANCED SPLIT-SCREEN HERO
   =========================== */
.hero-home-split {
  display: flex;
  min-height: 100vh;
  width: 100%;
  position: relative;
  overflow: hidden;
}

/* Left Side - Background Carousel */
.hero-left {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.background-carousel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 2s ease-in-out;
  animation: kenburns 20s ease-in-out infinite;
}

.carousel-slide.active {
  opacity: 1;
  z-index: 1;
}

/* Ken Burns zoom effect */
@keyframes kenburns {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.carousel-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 52, 109, 0.7) 0%, rgba(0, 123, 255, 0.5) 100%);
  z-index: 2;
}

.geometric-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(30deg, transparent 48%, rgba(255, 255, 255, 0.03) 50%, transparent 52%),
    linear-gradient(60deg, transparent 48%, rgba(255, 255, 255, 0.03) 50%, transparent 52%);
  background-size: 80px 80px;
  z-index: 3;
  opacity: 0.3;
}

/* Right Side - Profile & Content */
.hero-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-body);
  padding: 3rem 2rem;
  position: relative;
  z-index: 4;
}

.hero-content-right {
  max-width: 600px;
  width: 100%;
  text-align: center;
  animation: fadeInRight 1s ease;
}

/* Profile Image */
.profile-image-container {
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
}

.profile-image-border {
  position: relative;
  padding: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
  animation: pulseGlow 3s ease-in-out infinite;
  box-shadow: 0 10px 40px rgba(0, 123, 255, 0.3);
}

@keyframes pulseGlow {
  0%, 100% { 
    box-shadow: 0 10px 40px rgba(0, 123, 255, 0.3);
    transform: scale(1);
  }
  50% { 
    box-shadow: 0 15px 60px rgba(0, 123, 255, 0.6), 0 0 30px rgba(56, 189, 248, 0.4);
    transform: scale(1.02);
  }
}

.profile-image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-body);
  display: block;
}

/* Text Styles */
.greeting-new {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-gray);
  margin-bottom: 0.5rem;
  animation: fadeIn 0.8s ease 0.2s backwards;
}

.main-name-new {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-blue);
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
  animation: fadeIn 1s ease 0.4s backwards;
  line-height: 1.2;
}

.typed-container-new {
  min-height: 45px;
  margin-bottom: 1.5rem;
}

.tagline-new {
  font-size: 1.05rem;
  color: var(--text-dark);
  line-height: 1.7;
  margin-bottom: 2rem;
  animation: fadeIn 1s ease 0.6s backwards;
}

/* Quick Stats */
.quick-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
  animation: fadeIn 1s ease 0.8s backwards;
}

.stat-box {
  background: var(--card-bg);
  padding: 1.2rem 1rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.stat-box:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-blue);
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-gray);
  font-weight: 600;
}

/* CTA Buttons */
.cta-buttons-new {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: fadeIn 1s ease 1s backwards;
}

.cta-btn-new {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.cta-btn-new::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.cta-btn-new:hover::before {
  width: 400px;
  height: 400px;
}

.cta-btn-new svg {
  position: relative;
  z-index: 1;
  transition: transform var(--transition-fast);
}

.cta-btn-new:hover svg {
  transform: scale(1.15) rotate(5deg);
}

.cta-btn-new.primary {
  background-color: var(--primary-blue);
  color: white;
  border: 2px solid var(--primary-blue);
}

.cta-btn-new.primary:hover {
  background-color: var(--secondary-blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.cta-btn-new.secondary {
  background-color: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.cta-btn-new.secondary:hover {
  background-color: var(--primary-blue);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* Animations */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===========================
   RESPONSIVE - SPLIT SCREEN
   =========================== */
@media (max-width: 1024px) {
  .hero-home-split {
    flex-direction: column;
    min-height: auto;
  }

  .hero-left {
    min-height: 50vh;
    flex: none;
  }

  .hero-right {
    flex: none;
    padding: 3rem 1.5rem;
  }

  .main-name-new {
    font-size: 2rem;
  }

  .quick-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }
}

@media (max-width: 768px) {
  .hero-left {
    min-height: 40vh;
  }

  .hero-right {
    padding: 2rem 1rem;
  }

  .profile-image {
    width: 150px;
    height: 150px;
  }

  .main-name-new {
    font-size: 1.75rem;
  }

  .quick-stats {
    gap: 0.5rem;
  }

  .stat-box {
    padding: 1rem 0.75rem;
  }

  .cta-buttons-new {
    gap: 0.75rem;
  }

  .cta-btn-new {
    padding: 0.9rem 1.5rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .profile-image {
    width: 130px;
    height: 130px;
  }

  .main-name-new {
    font-size: 1.5rem;
  }

  .greeting-new {
    font-size: 1.1rem;
  }

  .tagline-new {
    font-size: 0.95rem;
  }
}

/* ===========================
   PAGE LAYOUTS
   =========================== */
.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 2rem;
  animation: fadeIn 0.6s ease;
  flex: 1;
}

.page-header {
  text-align: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 3px solid var(--primary-blue);
}

.page-header h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
}

.subtitle {
  font-size: 1.3rem;
  color: var(--text-gray);
  margin-top: 0.5rem;
}

/* ===========================
   ABOUT PAGE
   =========================== */
.about-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  border-radius: 15px;
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-slow);
}

.about-image img:hover {
  transform: scale(1.05);
}

.about-text {
  font-size: 1.1rem;
  line-height: 1.9;
}

.about-text .lead {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 1.5rem;
}

.about-text p {
  margin-bottom: 1.3rem;
  color: var(--text-dark);
}

.social-links-about {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.social-links-about a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1.3rem;
  background-color: white;
  color: var(--primary-blue);
  text-decoration: none;
  border: 2px solid var(--primary-blue);
  border-radius: 8px;
  font-weight: 600;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.social-links-about a:hover {
  background-color: var(--primary-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.education-section {
  margin-top: 3rem;
}

.education-section h2 {
  font-size: 2.5rem;
  color: var(--primary-blue);
  margin-bottom: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-color);
}

.edu-item {
  background-color: var(--card-bg);
  padding: 1.8rem;
  margin-bottom: 1.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  border-left: 4px solid var(--primary-blue);
}

.edu-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-lg);
}

.edu-item h3 {
  font-size: 1.5rem;
  color: var(--card-text);
  margin-bottom: 0.5rem;
}

.edu-degree {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-blue);
  margin: 0.3rem 0;
}

.edu-date {
  color: var(--text-gray);
  font-size: 0.95rem;
  margin: 0.3rem 0;
}

.edu-details {
  color: var(--text-gray);
  margin-top: 0.5rem;
}

.edu-award {
  color: var(--success-color);
  font-weight: 600;
  margin-top: 0.5rem;
  font-size: 1.05rem;
}

/* ===========================
   REDESIGNED ABOUT PAGE
   =========================== */

/* About Hero Section */
.about-hero {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
  align-items: center;
}

.about-hero-image {
  position: relative;
}

.about-hero-image img {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-slow);
}

.about-hero-image img:hover {
  transform: scale(1.05) rotate(2deg);
}

.about-hero-text h2 {
  font-size: 2.2rem;
  color: var(--primary-blue);
  margin-bottom: 1.5rem;
  font-weight: 700;
}

/* Waving Hand Animation */
.wave {
  animation: wave-animation 2.5s infinite;
  transform-origin: 70% 70%;
  display: inline-block;
}

@keyframes wave-animation {
  0% { transform: rotate(0deg); }
  10% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
  30% { transform: rotate(14deg); }
  40% { transform: rotate(-4deg); }
  50% { transform: rotate(10deg); }
  60% { transform: rotate(0deg); }
  100% { transform: rotate(0deg); }
}

/* Page Load Animations */
.fade-in {
  animation: fadeInUp 0.8s ease;
}

.fade-in-delay {
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

.card-animate {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
}

.timeline-animate {
  opacity: 0;
  transform: translateX(-30px);
  animation: slideInLeft 0.6s ease forwards;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.intro-text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-dark);
  margin-bottom: 1.2rem;
}

/* Section Title */
.section-title {
  font-size: 2rem;
  color: var(--primary-blue);
  margin-bottom: 2rem;
  text-align: center;
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-color));
  border-radius: 2px;
}

/* Quick Links Grid */
.quick-links-section {
  margin-bottom: 4rem;
}

.quick-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.quick-link-card {
  background: var(--card-bg);
  padding: 2rem 1.5rem;
  border-radius: 15px;
  text-decoration: none;
  border: 2px solid var(--border-color);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.quick-link-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(56, 189, 248, 0.1), transparent);
  transition: left 0.5s ease;
}

.quick-link-card:hover::before {
  left: 100%;
}

.quick-link-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue);
}

.quick-link-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.quick-link-card h3 {
  font-size: 1.3rem;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
}

.quick-link-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.link-arrow {
  font-size: 1.5rem;
  color: var(--primary-blue);
  transition: transform var(--transition-normal);
  display: inline-block;
}

.quick-link-card:hover .link-arrow {
  transform: translateX(5px);
}

/* Journey Section */
.journey-section {
  margin-bottom: 4rem;
}

.journey-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.journey-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border-left: 4px solid var(--primary-blue);
}

.journey-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-left-width: 6px;
}

.journey-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.journey-card h3 {
  font-size: 1.4rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.journey-card p {
  color: var(--text-dark);
  line-height: 1.7;
  font-size: 1rem;
}

/* Education Timeline */
.education-timeline {
  position: relative;
  padding: 2rem 0 2rem 3rem;
  margin-top: 2rem;
}

.education-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary-blue), var(--accent-color));
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 2rem;
}

.timeline-marker {
  position: absolute;
  left: -2.7rem;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-body);
  border: 4px solid var(--primary-blue);
  z-index: 1;
}

.timeline-marker.current {
  border-color: var(--accent-color);
  animation: pulse 2s infinite;
}

.timeline-marker.achievement {
  border-color: var(--success-color);
  background: var(--success-color);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.7); }
  50% { box-shadow: 0 0 0 10px rgba(56, 189, 248, 0); }
}

.timeline-content {
  background: var(--card-bg);
  padding: 1.8rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-lg);
}

.timeline-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--accent-color);
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 0.8rem;
}

.timeline-badge.award {
  background: var(--success-color);
}

.timeline-content h3 {
  font-size: 1.4rem;
  color: var(--card-text);
  margin-bottom: 0.5rem;
}

/* Connect Section */
.connect-section {
  margin-top: 4rem;
  text-align: center;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, rgba(0, 123, 255, 0.05), rgba(56, 189, 248, 0.05));
  border-radius: 20px;
}

.connect-text {
  font-size: 1.1rem;
  color: var(--text-gray);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.9rem 1.5rem;
  background: var(--card-bg);
  color: var(--primary-blue);
  text-decoration: none;
  border: 2px solid var(--primary-blue);
  border-radius: 10px;
  font-weight: 600;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.social-link:hover {
  background: var(--primary-blue);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.social-link svg {
  transition: transform var(--transition-fast);
}

.social-link:hover svg {
  transform: scale(1.1) rotate(5deg);
}

/* Responsive - About Page */
@media (max-width: 768px) {
  .about-hero {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .about-hero-image img {
    max-width: 200px;
    margin: 0 auto;
  }

  .about-hero-text h2 {
    font-size: 1.8rem;
  }

  .intro-text {
    font-size: 1rem;
  }

  .quick-links-grid {
    grid-template-columns: 1fr;
  }

  .journey-content {
    grid-template-columns: 1fr;
  }

  .education-timeline {
    padding-left: 2rem;
  }

  .timeline-item {
    padding-left: 1.5rem;
  }

  .section-title {
    font-size: 1.7rem;
  }
}

/* ===========================
   SKILLS PAGE
   =========================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.skill-category {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border-top: 4px solid var(--primary-blue);
  position: relative;
  overflow: hidden;
}

.skill-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.1), transparent);
  transition: left 0.5s ease;
}

.skill-category:hover::before {
  left: 100%;
}

.skill-category:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-top-width: 6px;
}

.skill-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  text-align: center;
}

.skill-category h3 {
  font-size: 1.4rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
  text-align: center;
}

.skill-category ul {
  list-style: none;
  padding: 0;
}

.skill-category li {
  padding: 0.6rem 0;
  color: var(--text-dark);
  position: relative;
  padding-left: 1.5rem;
}

.skill-category li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: 700;
}

/* Flip Card Skills */
.skills-grid.flip-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-bottom: 4rem;
}

.skill-card-flip {
  background-color: transparent;
  perspective: 1000px;
  height: 380px;
  cursor: pointer;
  position: relative;
  transform-style: preserve-3d;
}

.skill-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.skill-card-flip:hover .skill-card-inner {
  transform: rotateY(180deg);
}

/* Mobile/Touch support - flip on click */
.skill-card-flip.is-flipped .skill-card-inner {
  transform: rotateY(180deg);
}

.skill-card-front,
.skill-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.skill-card-front {
  background-color: var(--card-bg);
  border-top: 4px solid var(--primary-blue);
  transition: background-color var(--transition-normal);
  overflow: hidden;
  z-index: 2;
  transform: rotateY(0deg);
}

.skill-card-front.with-bg {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-top: none;
}

.skill-card-front.with-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
  z-index: 0;
  border-radius: 12px;
}

[data-theme="light"] .skill-card-front.with-bg::before {
  background: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.85));
}

.skill-card-front.with-bg > * {
  position: relative;
  z-index: 1;
}

.skill-card-front.with-bg h3,
.skill-card-front.with-bg li {
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .skill-card-front.with-bg h3,
[data-theme="light"] .skill-card-front.with-bg li {
  color: var(--text-dark);
  text-shadow: none;
}

.skill-card-front.with-bg .skill-icon {
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

[data-theme="light"] .skill-card-front.with-bg .skill-icon {
  filter: none;
}

.skill-card-front h3,
.skill-card-front li {
  color: var(--card-text);
}

.skill-card-back {
  background-color: var(--card-bg);
  color: var(--card-text);
  transform: rotateY(180deg);
  overflow-y: auto;
  text-align: left;
  justify-content: flex-start;
  padding: 1.3rem;
  z-index: 1;
  border: 2px solid var(--primary-blue);
}

.skill-card-front .skill-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.skill-card-front h3 {
  font-size: 1.4rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

.skill-card-front ul {
  list-style: none;
  padding: 0;
  text-align: center;
}

.skill-card-front li {
  padding: 0.3rem 0;
  color: var(--card-text);
  font-size: 0.95rem;
}

.skill-card-back h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
  color: var(--primary-blue);
  border-bottom: 2px solid var(--primary-blue);
  padding-bottom: 0.3rem;
  font-weight: 600;
}

.skill-card-back p {
  font-size: 0.82rem;
  line-height: 1.4;
  margin-bottom: 0.4rem;
  color: var(--card-text);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.skill-card-back strong {
  color: var(--primary-blue);
  font-weight: 700;
  display: block;
  margin-bottom: 0.2rem;
}

/* Certifications Section */
.certifications-section {
  margin-top: 5rem;
  padding-top: 3rem;
  border-top: 2px solid var(--border-color);
}

.certifications-section .section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.certifications-section h2 {
  font-size: 2.8rem;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
}

.certifications-showcase {
  max-width: 1200px;
  margin: 0 auto;
}

/* Featured Certifications */
.featured-certs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.cert-badge {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border-top: 4px solid var(--primary-blue);
  text-align: center;
}

.cert-badge.highlighted {
  border-top-width: 6px;
}

.cert-badge:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.badge-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

.cert-badge h4 {
  font-size: 1.15rem;
  color: var(--card-text);
  margin-bottom: 0.8rem;
  line-height: 1.4;
  min-height: 3rem;
}

.cert-issuer {
  color: var(--primary-blue);
  font-weight: 600;
  margin: 0.5rem 0;
  font-size: 1rem;
}

.cert-date {
  color: var(--text-gray);
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

.cert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1rem;
}

.cert-tags .tag {
  background-color: var(--primary-blue);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* Certification Categories */
.cert-categories {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.cert-category-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.cert-category-card h3,
.cert-list li {
  color: var(--card-text);
}

.cert-category-card:hover {
  box-shadow: var(--shadow-xl);
}

.cert-category-header {
  padding: 1.5rem 2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--card-bg);
  transition: background-color var(--transition-fast);
  border-left: 4px solid var(--primary-blue);
}

.cert-category-header:hover {
  background-color: var(--bg-light);
}

.cert-category-header.active {
  background-color: var(--bg-light);
  border-left-width: 6px;
}

.cert-header-content {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.cert-toggle-icon {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
  color: var(--primary-blue);
}

.cert-category-header.active .cert-toggle-icon {
  transform: rotate(180deg);
}

.cert-category-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
  padding: 0 2rem;
}

.cert-category-body.active {
  max-height: 2000px;
  padding: 1rem 2rem 2rem;
  transition: max-height 0.5s ease-in, padding 0.3s ease-in;
}

.category-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cert-category-card h3 {
  font-size: 1.3rem;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
}

.cert-count {
  color: var(--text-gray);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 0.3rem;
}

.cert-list {
  list-style: none;
  padding: 0;
}

.cert-list li {
  padding: 0;
  color: var(--card-text);
  position: relative;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.cert-list li::before {
  display: none;
}

.cert-link {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 0.8rem 1rem;
  color: var(--card-text);
  text-decoration: none;
  border-radius: 8px;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.cert-link:hover {
  background-color: var(--bg-light);
  border-left-color: var(--primary-blue);
  transform: translateX(5px);
}

.cert-link-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.cert-link-content {
  flex: 1;
}

.cert-link-title {
  font-weight: 500;
  color: var(--card-text);
  margin-bottom: 0.2rem;
}

.cert-link-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-gray);
  flex-wrap: wrap;
}

.cert-link-issuer {
  color: var(--primary-blue);
  font-weight: 500;
}

.cert-link-date {
  color: var(--text-gray);
}

.cert-external-icon {
  font-size: 0.9rem;
  color: var(--text-gray);
  margin-top: 0.2rem;
}

/* Certification Footer */
.cert-footer {
  background: linear-gradient(135deg, #007bff, #38bdf8);
  color: #ffffff;
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  margin-top: 3rem;
}

.cert-note {
  font-size: 1.1rem;
  line-height: 1.8;
  margin: 0.8rem 0;
  color: #ffffff;
}

.cert-note strong {
  font-weight: 700;
  font-size: 1.2rem;
  color: #ffffff;
}


/* ===========================
   PROJECTS PAGE
   =========================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.project-card-link {
  text-decoration: none;
  display: block;
}

.project-card {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border-left: 4px solid var(--primary-blue);
  position: relative;
  overflow: hidden;
  height: 480px;
  display: flex;
  flex-direction: column;
}

.project-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-color));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.project-card.with-bg {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-left: none;
}

.project-card.with-bg .project-content {
  position: relative;
  z-index: 2;
  color: white;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-card.with-bg .project-header h3,
.project-card.with-bg .project-description {
  color: white;
}

.project-card.with-bg .tech-badge {
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.project-link-icon {
  display: block;
  margin-top: auto;
  padding-top: 0.75rem;
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  opacity: 0.9;
  transition: all 0.3s ease;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 123, 255, 0.15);
}

.project-card:hover::after {
  transform: scaleX(1);
}

.projects-cta-banner {
  margin: 3rem 0 2rem;
}

.cta-banner-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem 3rem;
  background: linear-gradient(135deg, #0056b3, #007bff);
  border-radius: 16px;
  border: 2px dashed rgba(255, 255, 255, 0.3);
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

body:not(.dark-mode) .cta-banner-link {
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  border-color: rgba(0, 123, 255, 0.3);
}

.cta-banner-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

body:not(.dark-mode) .cta-banner-link::before {
  background: linear-gradient(90deg, transparent, rgba(0, 123, 255, 0.1), transparent);
}

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

.cta-banner-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 123, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
}

body:not(.dark-mode) .cta-banner-link:hover {
  border-color: rgba(0, 123, 255, 0.5);
}

.cta-banner-link .cta-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.cta-banner-link .cta-text {
  flex: 1;
}

.cta-banner-link h3 {
  font-size: 1.5rem;
  margin: 0 0 0.5rem 0;
  color: #1a1a1a;
}

.cta-banner-link p {
  margin: 0;
  font-size: 1rem;
  color: #4a4a4a;
  line-height: 1.5;
}

.cta-banner-link .cta-arrow {
  font-size: 2rem;
  color: #1a1a1a;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.cta-banner-link:hover .cta-arrow {
  transform: translateX(8px);
}

@media (max-width: 768px) {
  .cta-banner-link {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1.5rem;
    gap: 1rem;
  }
  
  .cta-banner-link .cta-arrow {
    display: none;
  }
}

.project-card.with-bg:hover {
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.project-card:hover .project-link-icon {
  transform: translateX(5px);
  opacity: 1;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
  gap: 0.75rem;
}

.project-header h3 {
  font-size: 1.3rem;
  color: var(--text-dark);
  flex: 1;
  line-height: 1.3;
  margin: 0;
}

.project-tag {
  background-color: var(--primary-blue);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.project-description {
  color: var(--text-gray);
  line-height: 1.5;
  margin-bottom: 1rem;
  flex: 1;
  overflow-y: auto;
  font-size: 0.95rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.tech-badge {
  background-color: var(--bg-light);
  color: var(--text-dark);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border-color);
}

.cta-section {
  text-align: center;
  padding: 3rem 2rem;
  background-color: var(--primary-blue);
  color: white;
  border-radius: 15px;
  margin: 3rem 0;
}

.cta-section h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.cta-section p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.button-large {
  display: inline-block;
  padding: 1rem 2.5rem;
  background-color: white;
  color: var(--primary-blue);
  text-decoration: none;
  border-radius: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.button-large:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

/* ===========================
   NEWS PAGE
   =========================== */
.news-timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  padding-left: 2rem;
}

.news-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--primary-blue);
}

.news-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 2rem;
}

.news-item::before {
  content: '';
  position: absolute;
  left: -0.6rem;
  top: 0.5rem;
  width: 15px;
  height: 15px;
  background-color: var(--primary-blue);
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 0 0 3px var(--primary-blue);
}

.news-date {
  font-size: 0.9rem;
  color: var(--text-gray);
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.news-content {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.news-content:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(5px);
}

.news-content h3 {
  font-size: 1.4rem;
  color: var(--primary-blue);
  margin-bottom: 0.7rem;
}

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

.news-content a {
  color: var(--primary-blue);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.news-content a:hover {
  border-bottom-color: var(--primary-blue);
}

/* ===========================
   BUTTONS
   =========================== */
.button {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  background-color: var(--primary-blue);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.button:hover {
  background-color: var(--secondary-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.back-link {
  text-align: center;
  margin-top: 1rem;
}

/* Dark Mode - Contact Cards */
body.dark-mode .contact-card {
  background: var(--card-bg) !important;
  color: var(--accent-color) !important;
  border-color: var(--accent-color) !important;
}

/* ===========================
   FOOTER
   =========================== */
.site-footer {
  background-color: var(--primary-dark);
  color: #f8fafc;
  padding: 1rem 0 1rem 0;
  border-top: 3px solid var(--primary-blue);
  flex: 0 0 auto;
  overflow: visible;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 0.75rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.footer-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-section h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--accent-color);
  font-weight: 700;
}

.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 0.6rem;
  color: var(--accent-color);
  font-weight: 600;
}

.footer-tagline {
  color: #cbd5e1;
  font-size: 0.9rem;
  margin: 0.4rem 0;
  line-height: 1.5;
}

.footer-location {
  color: var(--accent-color);
  font-weight: 600;
  margin-top: 0.4rem;
  font-size: 0.95rem;
}

.footer-email {
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.footer-email a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-block;
}

.footer-email a:hover {
  color: var(--accent-color);
  transform: translateX(3px);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--accent-color);
  padding-left: 5px;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.4rem;
  justify-content: center;
  margin-left: auto;
  margin-right: auto;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: #f8fafc;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.social-links a:hover {
  background-color: var(--accent-color);
  transform: translateY(-3px) rotate(5deg);
  box-shadow: 0 5px 15px rgba(56, 189, 248, 0.4);
}

.footer-bottom {
  background-color: rgba(0, 0, 0, 0.2);
  padding: 0.5rem 2rem;
  text-align: center;
  margin-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  margin: 0.2rem 0;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.footer-credits {
  font-size: 0.85rem;
  color: #94a3b8;
}

.footer-credits .heart {
  color: #ef4444;
  animation: heartbeat 1.5s infinite;
  display: inline-block;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  10%, 30% { transform: scale(1.1); }
  20%, 40% { transform: scale(1); }
}

/* ===========================
   SCROLL TO TOP BUTTON
   =========================== */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-color));
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  transition: all var(--transition-normal);
  z-index: 999;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.scroll-to-top:hover {
  transform: scale(1.1) translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.6);
}

.scroll-to-top:active {
  transform: scale(0.95);
}

.scroll-to-top svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 768px) {
  .scroll-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 45px;
    height: 45px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
  
  .social-links {
    justify-content: center;
  }
}

/* ===========================
   ANIMATIONS
   =========================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes blink {
  0%, 49% {
    opacity: 1;
  }
  50%, 100% {
    opacity: 0;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===========================
   ACCESSIBILITY & FOCUS STATES
   =========================== */
*:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

a:focus,
button:focus {
  outline: 3px solid var(--accent-color);
  outline-offset: 3px;
}

/* Skip to main content link for accessibility */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--primary-blue);
  color: white;
  padding: 0.8rem 1.5rem;
  text-decoration: none;
  z-index: 10000;
  border-radius: 0 0 8px 0;
  font-weight: 600;
}

.skip-to-content:focus {
  top: 0;
}

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

/* ===========================
   RESPONSIVE DESIGN
   =========================== */
@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 250px 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
  }

  .brand .logo {
    height: 35px;
  }

  .brand span {
    font-size: 1rem;
  }

  .nav-controls {
    gap: 0.5rem;
  }

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

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--primary-dark);
    padding: 1.5rem;
    gap: 0.5rem;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .dropdown-content {
    position: static;
    display: none;
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: none;
    margin-top: 0.5rem;
  }

  .dropdown-content a {
    color: #f8fafc;
    padding: 0.6rem 1rem;
  }

  .dropdown.active .dropdown-content {
    display: block;
  }

  .theme-toggle {
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    font-size: 1rem;
    border-width: 1px;
  }

  .theme-toggle-icon {
    font-size: 1rem;
  }

  .greeting {
    font-size: 1.8rem;
  }

  .typed-text {
    font-size: 1.4rem;
  }

  .typed-cursor {
    font-size: 1.4rem;
  }

  .main-name {
    font-size: 2rem;
  }

  .tagline {
    font-size: 1.1rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-btn {
    justify-content: center;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .subtitle {
    font-size: 1.1rem;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-image {
    max-width: 300px;
    margin: 0 auto;
  }

  .skills-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid.flip-cards {
    grid-template-columns: 1fr;
  }

  .skill-card-flip {
    height: 420px;
    cursor: pointer;
    perspective: none;
  }

  .skill-card-flip .skill-card-inner {
    position: relative;
    height: 100%;
    transform: none !important;
    transition: none;
  }

  .skill-card-front,
  .skill-card-back {
    position: absolute !important;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: visible !important;
    transform: none !important;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .skill-card-front {
    opacity: 1;
    visibility: visible;
    z-index: 2;
  }

  .skill-card-back {
    opacity: 0;
    visibility: hidden;
    z-index: 1;
  }

  /* Disable hover effect on mobile */
  .skill-card-flip:hover .skill-card-inner {
    transform: none !important;
  }

  .skill-card-flip.is-flipped .skill-card-inner {
    transform: none !important;
  }

  /* Swap front and back visibility when flipped on mobile */
  .skill-card-flip.is-flipped .skill-card-front {
    opacity: 0;
    visibility: hidden;
    z-index: 1;
  }

  .skill-card-flip.is-flipped .skill-card-back {
    opacity: 1;
    visibility: visible;
    z-index: 2;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      max-height: 0;
      padding-top: 0;
      padding-bottom: 0;
    }
    to {
      opacity: 1;
      max-height: 500px;
      padding-top: 1.5rem;
      padding-bottom: 1.5rem;
    }
  }

  .featured-certs {
    grid-template-columns: 1fr;
  }

  .cert-categories {
    grid-template-columns: 1fr;
  }

  .news-timeline {
    padding-left: 1.5rem;
  }

  .news-item {
    padding-left: 1.5rem;
  }
}

@media (max-width: 480px) {
  .greeting {
    font-size: 1.5rem;
  }

  .typed-text {
    font-size: 1.2rem;
  }

  .typed-cursor {
    font-size: 1.2rem;
  }

  .main-name {
    font-size: 1.7rem;
  }

  .tagline {
    font-size: 1rem;
  }

  .page {
    padding: 2rem 1rem;
  }

  .page-header h1 {
    font-size: 1.8rem;
  }
}

/* ===========================
   SCROLL REVEAL ANIMATIONS
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Staggered animation delays for sequential items */
.reveal:nth-child(1) { transition-delay: 0s; }
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }
.reveal:nth-child(6) { transition-delay: 0.5s; }
.reveal:nth-child(7) { transition-delay: 0.6s; }
.reveal:nth-child(8) { transition-delay: 0.7s; }
.reveal:nth-child(9) { transition-delay: 0.8s; }
.reveal:nth-child(10) { transition-delay: 0.9s; }
.reveal:nth-child(11) { transition-delay: 1s; }
.reveal:nth-child(12) { transition-delay: 1.1s; }
.reveal:nth-child(13) { transition-delay: 1.2s; }
.reveal:nth-child(14) { transition-delay: 1.3s; }
.reveal:nth-child(15) { transition-delay: 1.4s; }