/* Modern Portfolio CSS - Mohammed Chaaraoui */

/* CSS Variables */
:root {
  /* Colors */
  --primary-color: #0066ff;
  --primary-dark: #0052cc;
  --secondary-color: #00d4ff;
  --accent-color: #ff6b35;
  --success-color: #00c851;
  --warning-color: #ffbb33;
  --danger-color: #ff4444;
  
  /* Neutral Colors */
  --white: #ffffff;
  --black: #000000;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Dark Theme Colors */
  --dark-bg: #0a0a0a;
  --dark-bg-secondary: #1a1a1a;
  --dark-text: #ffffff;
  --dark-text-secondary: #b3b3b3;
  --dark-border: #333333;
  
  /* Light Theme Colors */
  --light-bg: #ffffff;
  --light-bg-secondary: #f8fafc;
  --light-text: #1a202c;
  --light-text-secondary: #4a5568;
  --light-border: #e2e8f0;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Sizes */
  --container-max-width: 1200px;
  --navbar-height: 80px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-preloader: 9999;
  --z-navbar: 1000;
  --z-cursor: 9998;
  --z-back-to-top: 999;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-color: var(--dark-bg);
  --bg-secondary: var(--dark-bg-secondary);
  --text-color: var(--dark-text);
  --text-secondary: var(--dark-text-secondary);
  --border-color: var(--dark-border);
}

/* Light Theme */
[data-theme="light"] {
  --bg-color: var(--light-bg);
  --bg-secondary: var(--light-bg-secondary);
  --text-color: var(--light-text);
  --text-secondary: var(--light-text-secondary);
  --border-color: var(--light-border);
}

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

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

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

/* Custom Cursor */
.cursor-dot,
.cursor-outline {
  pointer-events: none;
  position: fixed;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  opacity: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
  z-index: var(--z-cursor);
  display: none; /* Hide by default to fix scrolling issue */
}

.cursor-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary-color);
}

.cursor-outline {
  width: 40px;
  height: 40px;
  border: 2px solid var(--primary-color);
}

@media (hover: hover) and (pointer: fine) {
  .cursor-dot,
  .cursor-outline {
    opacity: 1;
    display: block;
  }
}

/* Preloader */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.terminal-loader {
  width: 600px;
  max-width: 90vw;
  background: #1e1e1e;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  border: 1px solid #333;
}

.terminal-header {
  background: #2d2d2d;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #444;
}

.terminal-controls {
  display: flex;
  gap: 8px;
}

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

.control.red { background: #ff5f56; }
.control.yellow { background: #ffbd2e; }
.control.green { background: #27ca3f; }

.terminal-title {
  color: #ccc;
  font-size: 12px;
  font-weight: 500;
}

.terminal-body {
  padding: 20px;
  background: #1e1e1e;
  color: #00ff00;
  font-size: 14px;
  line-height: 1.5;
  min-height: 250px;
}

.terminal-line {
  margin-bottom: 15px;
  display: flex;
  gap: 10px;
}

.prompt {
  color: #00aaff;
  font-weight: bold;
}

.command {
  color: #ffffff;
  animation: typewriter 2s steps(40) 1s both;
}

.loading-steps {
  margin: 20px 0;
}

.step {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 8px 0;
  opacity: 0;
  transform: translateX(-20px);
  animation: slideIn 0.5s ease forwards;
}

.step[data-step="1"] { animation-delay: 3.5s; }
.step[data-step="2"] { animation-delay: 6.5s; }
.step[data-step="3"] { animation-delay: 10s; }
.step[data-step="4"] { animation-delay: 13.5s; }
.step[data-step="5"] { animation-delay: 17s; }

.step-icon {
  color: #666;
  font-weight: bold;
  transition: color 0.3s ease;
}

.step.completed .step-icon {
  color: #00ff00;
  animation: pulse 0.5s ease;
}

.step-text {
  color: #ccc;
  flex: 1;
}

.step-status {
  color: #00ff00;
  font-weight: bold;
  opacity: 0;
}

.step.completed .step-status {
  opacity: 1;
  animation: fadeIn 0.3s ease;
}

.step.completed .step-status::after {
  content: " ✓";
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: #333;
  border-radius: 2px;
  margin: 20px 0;
  overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00aaff, #00ff00);
    width: 0%;
    border-radius: 2px;
    /* Animation removed - handled by JavaScript */
}

.terminal-cursor {
  color: #00ff00;
  animation: blink 1s infinite;
  display: inline-block;
  margin-left: 5px;
}

/* Keyframes for terminal animations */
@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes slideIn {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

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

@keyframes progressBar {
  from { width: 0%; }
  to { width: 100%; }
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: var(--z-navbar);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo .logo-text {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-color);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary, var(--dark-text-secondary));
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  background: rgba(0, 102, 255, 0.1);
}

.nav-link i {
  font-size: 1.1rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-color, var(--dark-text));
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.hamburger {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger span {
  width: 25px;
  height: 2px;
  background: var(--text-color, var(--dark-text));
  margin: 3px 0;
  transition: 0.3s;
}

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

/* Main Content Layout Fixes */
.main-content {
  padding-top: var(--navbar-height);
}

/* Section Visibility and Layout */
section {
  min-height: 100vh;
  padding: var(--spacing-3xl) 0;
  position: relative;
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
}

section:first-child {
  min-height: 100vh;
  padding-top: 0;
}

section:not(:first-child) {
  padding-top: var(--spacing-3xl);
}

/* Ensure all content is visible */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  position: relative;
  z-index: 1;
}

/* Fix for forms and interactive elements */
form, .form {
  display: block !important;
  visibility: visible !important;
}

.form-group {
  display: block !important;
  margin-bottom: var(--spacing-lg);
}

.form-input {
  display: block !important;
  width: 100%;
}

/* Navigation fix */
.nav-menu {
  display: flex !important;
}

/* Ensure buttons are clickable */
button, .btn, a {
  pointer-events: auto !important;
  cursor: pointer !important;
}

/* Fix contact section visibility */
#contact {
  display: block !important;
  visibility: visible !important;
}

.contact-content {
  display: grid !important;
  visibility: visible !important;
}

.contact-form {
  display: block !important;
  visibility: visible !important;
}

/* Fix for project cards */
.project-card {
  display: block !important;
  visibility: visible !important;
}

/* Fix for skill sections */
.skills-section {
  display: block !important;
  visibility: visible !important;
}

.skill-item {
  display: block !important;
  visibility: visible !important;
}

/* Ensure all text is visible */
h1, h2, h3, h4, h5, h6, p, span, div {
  visibility: visible !important;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-number {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border-radius: var(--border-radius);
  font-family: var(--font-mono);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary, var(--dark-text-secondary));
  max-width: 600px;
  margin: 0 auto;
}

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
}

.shape {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.shape-1 { width: 80px; height: 80px; top: 20%; left: 10%; animation-delay: 0s; }
.shape-2 { width: 120px; height: 120px; top: 60%; right: 10%; animation-delay: 2s; }
.shape-3 { width: 60px; height: 60px; top: 80%; left: 50%; animation-delay: 4s; }
.shape-4 { width: 100px; height: 100px; top: 30%; right: 30%; animation-delay: 1s; }
.shape-5 { width: 40px; height: 40px; top: 10%; right: 50%; animation-delay: 3s; }

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  min-height: 80vh;
}

.hero-text {
  animation: slideInLeft 1s ease-out;
}

.hero-greeting {
  margin-bottom: var(--spacing-md);
}

.greeting-text {
  font-size: 1.2rem;
  color: var(--text-secondary, var(--dark-text-secondary));
  font-weight: 500;
}

.hero-name {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
}

.name-part {
  display: block;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.subtitle-text {
  color: var(--text-secondary, var(--dark-text-secondary));
}

.typed-text {
  color: var(--primary-color);
  font-weight: 600;
  min-width: 200px;
}

.cursor-blink {
  color: var(--primary-color);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary, var(--dark-text-secondary));
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--text-color, var(--dark-text));
  border: 2px solid var(--border-color, var(--dark-border));
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.hero-social {
  display: flex;
  gap: var(--spacing-lg);
}

.social-link {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-color, var(--dark-border));
  border-radius: 50%;
  color: var(--text-secondary, var(--dark-text-secondary));
  text-decoration: none;
  transition: all var(--transition-normal);
}

.social-link:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.hero-image {
  display: flex;
  justify-content: center;
  animation: slideInRight 1s ease-out;
}

.image-container {
  position: relative;
  width: 400px;
  height: 400px;
}

.image-border {
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  animation: rotate 20s linear infinite;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  position: relative;
  z-index: 2;
}

.image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.3;
  z-index: 1;
  animation: pulse 3s ease-in-out infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.1; }
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  animation: bounce 2s infinite;
}

.scroll-mouse {
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-secondary, var(--dark-text-secondary));
  border-radius: 12px;
  position: relative;
}

.scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--text-secondary, var(--dark-text-secondary));
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll 2s infinite;
}

.scroll-text {
  font-size: 0.9rem;
  color: var(--text-secondary, var(--dark-text-secondary));
  font-weight: 500;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes scroll {
  0% { transform: translateX(-50%) translateY(0); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateX(-50%) translateY(10px); opacity: 0; }
}

/* About Section */
.about-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary, var(--dark-bg-secondary));
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.about-description p {
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary, var(--dark-text-secondary));
  line-height: 1.8;
}

.about-details {
  margin-top: var(--spacing-xl);
}

.detail-item {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border-color, var(--dark-border));
}

.detail-label {
  font-weight: 600;
  color: var(--text-color, var(--dark-text));
}

.detail-value {
  color: var(--text-secondary, var(--dark-text-secondary));
}

.detail-value.available {
  color: var(--success-color);
  font-weight: 600;
}

.about-services h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xl);
  color: var(--text-color, var(--dark-text));
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  padding: var(--spacing-xl);
  background: var(--bg-color, var(--dark-bg));
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color, var(--dark-border));
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.service-icon i {
  font-size: 1.5rem;
  color: white;
}

.service-card h4 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-color, var(--dark-text));
}

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

/* Experience Section - Modern Card Design */
.experience-section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.experience-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
  flex-wrap: wrap;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--bg-secondary, var(--dark-bg-secondary));
  border: 2px solid var(--border-color, var(--dark-border));
  color: var(--text-secondary, var(--dark-text-secondary));
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: 600;
  position: relative;
  overflow: hidden;
}

.tab-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transition: left 0.3s ease;
  z-index: -1;
}

.tab-btn.active::before,
.tab-btn:hover::before {
  left: 0;
}

.tab-btn.active,
.tab-btn:hover {
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.3);
}

.tab-btn i {
  font-size: 1.2rem;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: slideUpFadeIn 0.6s ease;
}

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

/* Experience Cards Grid */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.experience-card {
  background: var(--bg-secondary, var(--dark-bg-secondary));
  border-radius: 20px;
  border: 1px solid var(--border-color, var(--dark-border));
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
  cursor: pointer;
}

.experience-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.experience-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-color);
}

.experience-card.current {
  border-color: var(--primary-color);
  box-shadow: 0 10px 30px rgba(var(--primary-rgb), 0.2);
}

.experience-card.current::before {
  transform: scaleX(1);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
}

.company-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8rem;
}

.period-badge {
  background: var(--bg-tertiary, var(--dark-bg-tertiary));
  color: var(--text-color, var(--dark-text));
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid var(--border-color, var(--dark-border));
}

.period-badge.current {
  background: var(--primary-color);
  color: white;
  animation: pulse 2s infinite;
}

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

.card-content {
  padding: 0 var(--spacing-xl) var(--spacing-xl);
}

.card-content h3 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.card-content h4 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.tech-tag {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.achievements li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  color: var(--text-secondary, var(--dark-text-secondary));
  margin-bottom: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(var(--border-rgb), 0.1);
  line-height: 1.5;
}

.achievements li:last-child {
  border-bottom: none;
}

.achievements li i {
  color: var(--primary-color);
  font-size: 1.1rem;
  margin-top: 2px;
  flex-shrink: 0;
}

/* Education Grid */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.education-card {
  background: var(--bg-secondary, var(--dark-bg-secondary));
  border-radius: 25px;
  border: 1px solid var(--border-color, var(--dark-border));
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 300px;
}

.education-card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
  border-color: var(--primary-color);
}

.education-icon {
  position: absolute;
  top: var(--spacing-xl);
  left: var(--spacing-xl);
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  z-index: 2;
}

.education-content {
  padding: var(--spacing-xl);
  padding-top: calc(var(--spacing-xl) + 60px);
  flex-grow: 1;
}

.education-content .period-badge {
  margin-bottom: var(--spacing-lg);
  display: inline-block;
}

.education-content h3 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-sm);
  font-size: 1.4rem;
}

.education-content h4 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.education-content p {
  color: var(--text-secondary, var(--dark-text-secondary));
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.skills-covered {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-tag {
  background: var(--bg-tertiary, var(--dark-bg-tertiary));
  color: var(--text-secondary, var(--dark-text-secondary));
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 12px;
  font-size: 0.8rem;
  border: 1px solid var(--border-color, var(--dark-border));
  transition: all 0.2s ease;
}

.skill-tag:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-1px);
}

.degree-indicator {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: rgba(var(--primary-rgb), 0.1);
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.8rem;
}

/* Certificates Showcase */
.certificates-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  max-width: 800px;
  margin: 0 auto;
}

.certificate-card.modern {
  background: var(--bg-secondary, var(--dark-bg-secondary));
  border-radius: 20px;
  border: 1px solid var(--border-color, var(--dark-border));
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.certificate-card.modern:hover {
  transform: translateY(-8px) rotateX(5deg);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
  border-color: var(--primary-color);
}

.certificate-badge {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  display: flex;
  align-items: center;
  justify-content: center;
}

.certificate-badge img {
  width: 80%;
  height: auto;
  max-height: 150px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.certificate-card.modern:hover .certificate-badge img {
  transform: scale(1.1);
}

.certificate-overlay {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  opacity: 0;
  transform: scale(0);
  transition: all 0.3s ease;
}

.certificate-card.modern:hover .certificate-overlay {
  opacity: 1;
  transform: scale(1);
}

.certificate-info {
  padding: var(--spacing-xl);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.certificate-info h4 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-sm);
  font-size: 1.2rem;
  line-height: 1.3;
}

.certificate-info p {
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
}

.certificate-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.certificate-meta .date {
  color: var(--text-secondary, var(--dark-text-secondary));
  font-size: 0.9rem;
}

.certificate-meta .status {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.certificate-meta .status.active {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
  .experience-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .experience-card,
  .education-card {
    min-height: auto;
  }
  
  .education-grid {
    grid-template-columns: 1fr;
  }
  
  .certificates-showcase {
    grid-template-columns: 1fr;
  }
  
  .tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.9rem;
  }
  
  .card-header {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .company-icon {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .experience-grid {
    grid-template-columns: 1fr;
  }
  
  .experience-card {
    margin: 0 var(--spacing-sm);
  }
  
  .tech-stack {
    justify-content: center;
  }
  
  .skills-covered {
    justify-content: center;
  }
}

/* Skills Section - Modern Card Design */
.skills-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary, var(--dark-bg-secondary));
  position: relative;
  overflow: hidden;
}

.skills-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(var(--primary-rgb), 0.05) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(var(--secondary-rgb), 0.05) 0%, transparent 50%);
  pointer-events: none;
}

/* Skills Navigation */
.skills-nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
  flex-wrap: wrap;
}

.skill-nav-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--bg-color, var(--dark-bg));
  border: 2px solid var(--border-color, var(--dark-border));
  color: var(--text-secondary, var(--dark-text-secondary));
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: 600;
  position: relative;
  overflow: hidden;
}

.skill-nav-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transition: left 0.3s ease;
  z-index: -1;
}

.skill-nav-btn.active::before,
.skill-nav-btn:hover::before {
  left: 0;
}

.skill-nav-btn.active,
.skill-nav-btn:hover {
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.3);
}

.skill-nav-btn i {
  font-size: 1.2rem;
}

/* Skills Showcase Grid */
.skills-showcase {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
  max-width: 1400px;
  margin: 0 auto var(--spacing-3xl);
  transition: all 0.3s ease;
  justify-content: center; /* Center the cards */
}

@media (max-width: 768px) {
  .skills-showcase {
    gap: var(--spacing-lg);
  }
  
  .skill-card {
    min-width: 280px;
    max-width: 100%;
    flex: 1 1 280px;
  }
}

.skill-card {
  background: var(--bg-color, var(--dark-bg));
  border-radius: 20px;
  border: 1px solid var(--border-color, var(--dark-border));
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  opacity: 1;
  transform: scale(1) translateY(0);
  order: 0; /* Default order */
  flex: 1 1 300px; /* Flexible basis with minimum width */
  min-width: 300px;
  max-width: calc(50% - var(--spacing-xl));
  display: flex; /* Ensure flexbox display */
  flex-direction: column; /* Stack content vertically */
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.skill-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  border-color: var(--primary-color);
}

/* Skill Level Variants */
.skill-card.expert {
  border-left: 4px solid #10b981;
}

.skill-card.advanced {
  border-left: 4px solid #3b82f6;
}

.skill-card.intermediate {
  border-left: 4px solid #f59e0b;
}

.skill-card.beginner {
  border-left: 4px solid #ef4444;
}

.skill-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8rem;
  margin-bottom: var(--spacing-lg);
  transition: transform 0.3s ease;
}

.skill-card:hover .skill-icon {
  transform: scale(1.1) rotateY(180deg);
}

.skill-content h4 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-lg);
  font-size: 1.2rem;
}

.proficiency-level {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.level-badge {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.level-badge.expert {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.level-badge.advanced {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.level-badge.intermediate {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.level-badge.beginner {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.skill-percentage {
  font-weight: bold;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.skill-bar-modern {
  height: 8px;
  background: var(--border-color, var(--dark-border));
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.skill-fill {
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 10px;
  width: 0%;
  transition: width 2s ease-in-out;
  position: relative;
}

.skill-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.skill-tags span {
  background: var(--bg-tertiary, var(--dark-bg-tertiary));
  color: var(--text-secondary, var(--dark-text-secondary));
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
  font-size: 0.75rem;
  border: 1px solid var(--border-color, var(--dark-border));
  transition: all 0.2s ease;
}

.skill-tags span:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-1px);
}

/* Skills Summary */
.skills-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.summary-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  background: var(--bg-color, var(--dark-bg));
  padding: var(--spacing-xl);
  border-radius: 15px;
  border: 1px solid var(--border-color, var(--dark-border));
  transition: all var(--transition-normal);
}

.summary-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--primary-color);
}

.summary-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.summary-content h4 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-xs);
  font-size: 1.3rem;
}

.summary-content p {
  color: var(--text-secondary, var(--dark-text-secondary));
  font-size: 0.9rem;
}

/* Filter Animations */
.skill-card.visible {
  display: block;
  opacity: 1;
  transform: scale(1) translateY(0);
}

.skill-card.hidden {
  display: none;
  opacity: 0;
  transform: scale(0.8) translateY(20px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .skills-showcase {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .skills-nav {
    gap: var(--spacing-sm);
  }
  
  .skill-nav-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.9rem;
  }
  
  .skill-nav-btn span {
    display: none;
  }
  
  .skills-summary {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .summary-card {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .skills-summary {
    grid-template-columns: 1fr;
  }
  
  .skill-card {
    padding: var(--spacing-lg);
  }
  
  .proficiency-level {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
  }
}

/* Projects Section */
.projects-section {
  padding: var(--spacing-3xl) 0;
}

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

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: transparent;
  border: 2px solid var(--border-color, var(--dark-border));
  color: var(--text-secondary, var(--dark-text-secondary));
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: 600;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  justify-items: center;
  max-width: 100%;
  transition: all 0.3s ease;
}

/* JavaScript-controlled grid layouts for better browser support */
.projects-grid.grid-one-item {
  grid-template-columns: minmax(350px, 450px);
  justify-content: center;
}

.projects-grid.grid-two-items {
  grid-template-columns: repeat(2, minmax(350px, 450px));
  justify-content: center;
}

.projects-grid.grid-many-items {
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  justify-content: start;
}

/* CSS :has() selector support for modern browsers */
@supports selector(:has(*)) {
  /* When we have 2 items, center them better */
  .projects-grid:has(.project-card:nth-child(2):last-child) {
    grid-template-columns: repeat(2, minmax(350px, 450px));
    justify-content: center;
  }

  /* When we have 1 item, center it */
  .projects-grid:has(.project-card:first-child:last-child) {
    grid-template-columns: minmax(350px, 450px);
    justify-content: center;
  }

  /* For 3 items or more, use the normal layout */
  .projects-grid:has(.project-card:nth-child(3)) {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    justify-content: start;
  }
}

.project-card {
  background: var(--bg-secondary, var(--dark-bg-secondary));
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color, var(--dark-border));
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
  transform: translateY(0);
}

.project-card:hover {
  transform: translateY(-10px) rotateX(5deg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-image {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 102, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-links {
  display: flex;
  gap: var(--spacing-md);
}

.project-link {
  width: 50px;
  height: 50px;
  background: white;
  color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all var(--transition-normal);
}

.project-link:hover {
  transform: scale(1.1);
}

.project-content {
  padding: var(--spacing-xl);
}

.project-category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--primary-color);
  color: white;
  border-radius: var(--border-radius);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.project-content h3 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-md);
}

.project-content p {
  color: var(--text-secondary, var(--dark-text-secondary));
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tech-tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-color, var(--dark-bg));
  color: var(--text-secondary, var(--dark-text-secondary));
  border-radius: var(--border-radius-sm);
  font-size: 0.8rem;
  border: 1px solid var(--border-color, var(--dark-border));
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-secondary, var(--dark-bg-secondary));
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon i {
  font-size: 1.5rem;
  color: white;
}

.contact-details h4 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-sm);
}

.contact-details p {
  color: var(--text-secondary, var(--dark-text-secondary));
}

.contact-social {
  margin-top: var(--spacing-xl);
}

.contact-social h4 {
  color: var(--text-color, var(--dark-text));
  margin-bottom: var(--spacing-md);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-md);
  background: var(--bg-color, var(--dark-bg));
  border: 2px solid var(--border-color, var(--dark-border));
  border-radius: var(--border-radius);
  color: var(--text-color, var(--dark-text));
  font-size: 1rem;
  transition: all var(--transition-normal);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label,
.form-input:valid + .form-label {
  top: -10px;
  left: var(--spacing-md);
  font-size: 0.8rem;
  color: var(--primary-color);
  background: var(--bg-secondary, var(--dark-bg-secondary));
  padding: 0 var(--spacing-sm);
}

.form-label {
  position: absolute;
  top: 50%;
  left: var(--spacing-md);
  transform: translateY(-50%);
  color: var(--text-secondary, var(--dark-text-secondary));
  font-size: 1rem;
  pointer-events: none;
  transition: all var(--transition-normal);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

textarea + .form-label {
  top: var(--spacing-lg);
  transform: none;
}

/* Footer */
.footer {
  background: var(--bg-color, var(--dark-bg));
  border-top: 1px solid var(--border-color, var(--dark-border));
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.footer-content p {
  color: var(--text-secondary, var(--dark-text-secondary));
  margin-bottom: var(--spacing-sm);
}

.footer-content i {
  color: var(--accent-color);
}

/* Back to Top */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  opacity: 0;
  visibility: hidden;
  z-index: var(--z-back-to-top);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

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

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

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

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content,
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .hero-text {
    order: 2;
    text-align: center;
  }
  
  .hero-image {
    order: 1;
  }
  
  .image-container {
    width: 300px;
    height: 300px;
  }
  
  .timeline-date {
    position: static;
    margin-bottom: var(--spacing-md);
    display: inline-block;
  }
  
  .timeline-item {
    padding-left: 0;
  }
  
  .timeline::before {
    display: none;
  }
  
  .timeline-item::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--navbar-height);
    left: -100%;
    width: 100%;
    height: calc(100vh - var(--navbar-height));
    background: var(--bg-color, var(--dark-bg));
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: var(--spacing-xl) 0;
    transition: left var(--transition-normal);
    z-index: 999;
    border-right: 1px solid var(--border-color, var(--dark-border));
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .hamburger {
    display: flex;
    z-index: 1001;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-social {
    justify-content: center;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-categories {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    justify-content: center;
  }
  
  /* Override the :has selectors for mobile */
  .projects-grid:has(.project-card:nth-child(2):last-child),
  .projects-grid:has(.project-card:first-child:last-child),
  .projects-grid:has(.project-card:nth-child(3)) {
    grid-template-columns: 1fr;
    justify-content: center;
  }
  
  .projects-filters {
    justify-content: center;
  }
  
  .certificates-grid {
    grid-template-columns: 1fr;
  }
  
  .experience-tabs {
    flex-direction: column;
    align-items: center;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .nav-menu {
    display: none !important;
  }
  
  .nav-menu.active {
    display: flex !important;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 3rem;
  }
  
  .image-container {
    width: 250px;
    height: 250px;
  }
  
  .hero-name {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
  
  .tech-stack {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-buttons {
    gap: var(--spacing-md);
  }
  
  .back-to-top {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 45px;
    height: 45px;
  }
  
  /* Hide scroll indicator on mobile to prevent overlap with social links */
  .scroll-indicator {
    display: none;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .back-to-top,
  .floating-shapes,
  .scroll-indicator {
    display: none !important;
  }
  
  .hero-section {
    min-height: auto;
    padding: var(--spacing-xl) 0;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .floating-shapes,
  .scroll-indicator {
    animation: none;
  }
}

/* Scroll Animation Styles */
[data-aos] {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-up"] {
    transform: translateY(50px);
}

[data-aos="fade-down"] {
    transform: translateY(-50px);
}

[data-aos="fade-left"] {
    transform: translateX(50px);
}

[data-aos="fade-right"] {
    transform: translateX(-50px);
}

[data-aos="slide-right"] {
    transform: translateX(-100px);
}

[data-aos="slide-left"] {
    transform: translateX(100px);
}

[data-aos="zoom-in"] {
    transform: scale(0.8);
}

[data-aos].aos-animate[data-aos="fade-up"],
[data-aos].aos-animate[data-aos="fade-down"],
[data-aos].aos-animate[data-aos="fade-left"],
[data-aos].aos-animate[data-aos="fade-right"],
[data-aos].aos-animate[data-aos="slide-right"],
[data-aos].aos-animate[data-aos="slide-left"] {
    transform: translateX(0) translateY(0);
}

[data-aos].aos-animate[data-aos="zoom-in"] {
    transform: scale(1);
}

/* Enhanced project card hover effects */
.project-card {
    position: relative;
    transform: translateY(0);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-card .project-image {
    overflow: hidden;
    border-radius: 12px 12px 0 0;
}

.project-card .project-image img {
    transition: transform 0.4s ease;
}

/* Skill bar animations */
.skill-progress {
    width: 0% !important;
    transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.skill-item.animate .skill-progress {
    width: var(--percentage) !important;
}

/* Service card hover effects */
.service-card {
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    color: var(--primary-color);
}

.service-icon {
    transition: all 0.3s ease;
}

/* Tech item hover effects */
.tech-item {
    transition: all 0.3s ease;
    cursor: pointer;
}

.tech-item:hover {
    transform: translateY(-5px) scale(1.05);
    color: var(--primary-color);
    background: rgba(20, 184, 166, 0.1);
}

/* Button ripple effect */
.btn {
    position: relative;
    overflow: hidden;
}

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

.btn:active::before {
    width: 300px;
    height: 300px;
}

/* Smooth scrolling enhancement */
html {
    scroll-behavior: smooth;
}

/* Enhanced timeline animations */
.timeline-item {
    position: relative;
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.timeline-item.animate {
    opacity: 1;
    transform: translateX(0);
}

.timeline-item:nth-child(even) {
    transform: translateX(50px);
}

.timeline-item:nth-child(even).animate {
    transform: translateX(0);
}

/* Floating animation for shapes */
.floating-shapes .shape {
    animation-duration: 20s;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
}

.shape-1 { animation-name: float1; animation-delay: 0s; }
.shape-2 { animation-name: float2; animation-delay: 2s; }
.shape-3 { animation-name: float3; animation-delay: 4s; }
.shape-4 { animation-name: float4; animation-delay: 6s; }
.shape-5 { animation-name: float5; animation-delay: 8s; }

@keyframes float1 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(90deg); }
    50% { transform: translateY(-10px) rotate(180deg); }
    75% { transform: translateY(-30px) rotate(270deg); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-15px) rotate(120deg); }
    66% { transform: translateY(-25px) rotate(240deg); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

@keyframes float4 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(90deg); }
    75% { transform: translateY(-20px) rotate(270deg); }
}

@keyframes float5 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    40% { transform: translateY(-25px) rotate(144deg); }
    80% { transform: translateY(-15px) rotate(288deg); }
}

/* Contact form enhanced animations */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-input:focus {
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
    border-color: var(--primary-color);
}

.form-input:focus + .form-label {
    color: var(--primary-color);
    transform: translateY(-150%) scale(0.9);
}

/* Loading state for buttons */
.btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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