:root {
  --color-primary: #2563eb;
  --color-primary-light: #60a5fa;
  --color-primary-dark: #1e40af;
  --color-accent: #0891b2;
  --color-accent-light: #06b6d4;
  --color-accent-dark: #0e7490;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-text: #64748b;
  --color-text-dark: #1e293b;
  --color-bg: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-border: #e2e8f0;
  --color-shadow: rgba(37, 99, 235, 0.12);
  --color-shadow-light: rgba(37, 99, 235, 0.08);
  
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);
  --gradient-secondary: linear-gradient(135deg, #0891b2 0%, #10b981 100%);
  --gradient-accent: linear-gradient(135deg, #60a5fa 0%, #06b6d4 100%);
  --gradient-hero: linear-gradient(135deg, #1e40af 0%, #0e7490 100%);
  
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  --shadow-sm: 0 2px 8px 0 var(--color-shadow);
  --shadow-md: 0 4px 16px -2px var(--color-shadow);
  --shadow-lg: 0 10px 30px -3px var(--color-shadow);
  --shadow-xl: 0 20px 50px -5px var(--color-shadow);
  
  --border-radius: 0.75rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --color-primary: #3b82f6;
  --color-primary-light: #60a5fa;
  --color-primary-dark: #2563eb;
  --color-accent: #06b6d4;
  --color-accent-light: #22d3ee;
  --color-accent-dark: #0891b2;
  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-error: #f87171;
  --color-text: #94a3b8;
  --color-text-dark: #f1f5f9;
  --color-bg: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-border: #475569;
  --color-shadow: rgba(59, 130, 246, 0.2);
  --color-shadow-light: rgba(59, 130, 246, 0.12);
  
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #10b981 100%);
  --gradient-accent: linear-gradient(135deg, #60a5fa 0%, #22d3ee 100%);
  --gradient-hero: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);
}

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

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header Styles */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] header {
  background: rgba(15, 23, 42, 0.95);
}

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

.logo {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.logo-accent {
  color: var(--color-accent);
  animation: pulse 2s infinite;
}

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

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
  position: relative;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
}

.nav-links a.active {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--gradient-primary);
  transition: transform var(--transition-fast);
}

.nav-links a:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-links a:hover {
  color: var(--color-primary);
  transform: translateY(-2px);
}

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

.theme-toggle {
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  color: white;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  box-shadow: var(--shadow-md);
}

.theme-toggle:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
  background: var(--color-bg-secondary);
}

.mobile-menu-toggle span {
  width: 30px;
  height: 3px;
  background: var(--color-text-dark);
  margin: 3px 0;
  transition: all var(--transition-fast);
  border-radius: 2px;
}

/* Page Content Styles */
.page-content {
  padding-top: 100px;
  min-height: calc(100vh - 200px);
}

.page-header {
  background: var(--gradient-hero);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.08) 50%, transparent 70%);
  animation: shimmerMove 3s infinite;
}

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

.page-title {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  color: white;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.page-subtitle {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.95);
  font-weight: 400;
}

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(8, 145, 178, 0.03) 100%);
}

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

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.08;
  animation: float 8s ease-in-out infinite;
  filter: blur(60px);
}

.shape-1 {
  width: 400px;
  height: 400px;
  top: 10%;
  left: 5%;
  background: var(--gradient-primary);
  animation-delay: 0s;
}

.shape-2 {
  width: 350px;
  height: 350px;
  top: 50%;
  right: 5%;
  background: var(--gradient-secondary);
  animation-delay: 2s;
}

.shape-3 {
  width: 300px;
  height: 300px;
  bottom: 10%;
  left: 15%;
  background: var(--gradient-accent);
  animation-delay: 4s;
}

.shape-4 {
  width: 380px;
  height: 380px;
  top: 5%;
  right: 20%;
  background: var(--gradient-primary);
  animation-delay: 1s;
}

@keyframes float {
  0%, 100% { 
    transform: translateY(0px) translateX(0px) scale(1); 
  }
  33% { 
    transform: translateY(-30px) translateX(20px) scale(1.05); 
  }
  66% { 
    transform: translateY(20px) translateX(-20px) scale(0.95); 
  }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 450px;
  gap: var(--spacing-2xl);
  align-items: center;
  width: 100%;
}

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

.greeting {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  font-weight: 500;
}

.wave {
  animation: wave 2s infinite;
  transform-origin: 70% 70%;
  display: inline-block;
  font-size: var(--font-size-2xl);
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  10%, 30% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-dark);
}

.name-highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  display: inline-block;
}

.name-highlight::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
  border-radius: 2px;
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 0.6; transform: scaleX(1); }
  50% { opacity: 1; transform: scaleX(1.05); }
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: var(--font-size-xl);
  color: var(--color-text);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.7;
  font-weight: 400;
}

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

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  font-size: var(--font-size-lg);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-lg);
}

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

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

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

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  position: relative;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: -1;
  border-radius: var(--border-radius-lg);
}

.btn-secondary:hover::before {
  opacity: 0.1;
}

.btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-container {
  position: relative;
  width: 400px;
  height: 400px;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-xl);
  border: 3px solid var(--color-primary);
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  display: block;
}

/* Quick Links Section */
.quick-links {
  padding: var(--spacing-2xl) 0;
  background: var(--color-bg-secondary);
}

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

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

.quick-link-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

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

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

.link-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: var(--font-size-3xl);
  color: white;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.quick-link-card:hover .link-icon {
  transform: scale(1.15) rotate(5deg);
  box-shadow: var(--shadow-lg);
}

.quick-link-card h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.quick-link-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

/* CTA Section */
.cta-section {
  padding: var(--spacing-2xl) 0;
  background: var(--gradient-hero);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  animation: rotateGradient 10s linear infinite;
}

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

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: var(--font-size-3xl);
  color: white;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.cta-content p {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-xl);
}

.cta-content .btn-primary {
  background: white;
  color: var(--color-primary);
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
}

.cta-content .btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.3);
}

/* Section Styles */
section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-text-dark);
  position: relative;
  display: inline-block;
  width: 100%;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

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

/* About Section */
.about {
  background: var(--color-bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--spacing-2xl);
  align-items: center;
}

.about-text {
  animation: fadeInUp 1s ease-out;
}

.about-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-dark);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-left: var(--spacing-md);
}

.about-intro::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.about-text p {
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-lg);
  line-height: 1.7;
}

.about-stats {
  display: flex;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.stat {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--color-bg);
  border-radius: var(--border-radius);
  flex: 1;
  border: 2px solid var(--color-border);
  transition: all var(--transition-fast);
}

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

.stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.about-image {
  display: flex;
  justify-content: center;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.about-image-container {
  position: relative;
  width: 300px;
  height: 400px;
}

.about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  border: 3px solid var(--color-primary);
}

.tech-icons {
  position: absolute;
  bottom: -20px;
  right: -20px;
  display: flex;
  gap: var(--spacing-sm);
}

.tech-icons i {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-radius: 50%;
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  box-shadow: var(--shadow-md);
  animation: bounce 2s infinite;
  border: 2px solid var(--color-primary);
}

.tech-icons i:nth-child(2) { animation-delay: 0.2s; }
.tech-icons i:nth-child(3) { animation-delay: 0.4s; }
.tech-icons i:nth-child(4) { animation-delay: 0.6s; }

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Experience Section */
.experience {
  background: var(--color-bg);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--gradient-primary);
  transform: translateX(-50%);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-2xl);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-slow);
}

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

.timeline-item:nth-child(odd) .timeline-content {
  margin-left: 0;
  margin-right: auto;
  text-align: right;
  padding-right: var(--spacing-xl);
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: auto;
  margin-right: 0;
  text-align: left;
  padding-left: var(--spacing-xl);
}

.timeline-marker {
  position: absolute;
  left: 50%;
  top: 20px;
  width: 20px;
  height: 20px;
  background: var(--gradient-primary);
  border: 4px solid var(--color-bg);
  border-radius: 50%;
  transform: translateX(-50%);
  z-index: 2;
  box-shadow: 0 0 15px rgba(37, 99, 235, 0.4);
}

.timeline-content {
  background: var(--color-bg);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  width: calc(50% - var(--spacing-lg));
  border: 2px solid var(--color-border);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

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

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

.timeline-header {
  margin-bottom: var(--spacing-md);
}

.timeline-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.timeline-company {
  display: block;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-date {
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.achievement-badge {
  display: inline-block;
  background: var(--gradient-accent);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  box-shadow: var(--shadow-sm);
}

.timeline-description {
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

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

.timeline-skills .skill-tag {
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border: 1px solid rgba(37, 99, 235, 0.15);
  transition: all var(--transition-fast);
}

.timeline-skills .skill-tag:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-2px);
}

/* =========================================
   SKILLS SECTION
========================================= */

.skills-categories{
  display:grid;

  grid-template-columns:
  repeat(auto-fit,minmax(320px,1fr));

  gap:1.8rem;

  margin-top:2rem;
}

/* CARD */

.skill-category{
  background:var(--color-bg);

  border:1px solid var(--color-border);

  border-radius:24px;

  padding:1.8rem;

  transition:all 0.3s ease;

  position:relative;

  overflow:hidden;
}

/* TOP LINE */

.skill-category::before{
  content:"";

  position:absolute;

  top:0;
  left:0;

  width:100%;
  height:4px;

  background:var(--gradient-primary);
}

/* HOVER */

.skill-category:hover{
  transform:translateY(-6px);

  box-shadow:0 12px 35px rgba(0,0,0,0.08);
}

/* TITLE */

.category-title{
  display:flex;

  align-items:center;

  gap:0.85rem;

  font-size:1.1rem;

  font-weight:700;

  margin-bottom:1.5rem;

  color:var(--color-text-dark);
}

/* ICON */

.category-title i{
  width:42px;
  height:42px;

  display:flex;

  align-items:center;
  justify-content:center;

  border-radius:12px;

  background:var(--gradient-primary);

  color:#fff;

  font-size:1rem;
}

/* GRID */

.skills-grid{
  display:flex;

  flex-wrap:wrap;

  gap:0.8rem;
}

/* PILLS */

.skill-pill{
  padding:0.7rem 1rem;

  border-radius:14px;

  background:var(--color-bg-secondary);

  border:1px solid var(--color-border);

  font-size:0.92rem;

  font-weight:500;

  color:var(--color-text-dark);

  transition:all 0.25s ease;
}

/* HOVER */

.skill-pill:hover{
  background:var(--gradient-primary);

  color:#fff;

  transform:translateY(-2px);
}

/* RESPONSIVE */

@media(max-width:768px){

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

}

/* Projects Section */
#projects {
  background: var(--color-bg);
}

.projects-subtitle {
  margin: 3rem 0 1.5rem;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-text-dark);
  border-left: 4px solid var(--color-primary);
  padding-left: 12px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.project-card {
  background: var(--color-bg);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-border);
  transition: all var(--transition-slow);
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  z-index: 1;
}

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

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.project-image-container {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.95) 0%, rgba(8, 145, 178, 0.95) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-fast);
}

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

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

.project-link-icon {
  width: 60px;
  height: 60px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  transition: all var(--transition-fast);
  text-decoration: none;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.project-link-icon:hover {
  background: var(--gradient-accent);
  color: white;
  transform: scale(1.15) rotate(5deg);
}

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

.project-category-tag {
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-xs);
  font-weight: 600;
  display: inline-block;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.project-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.project-description {
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

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

.tech-tag {
  background: var(--color-bg-secondary);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-2px);
  border-color: transparent;
}

/* Certificates Section */
.certificates {
  background: var(--color-bg-secondary);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.certificate-card {
  background: var(--color-bg);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-border);
  transition: all var(--transition-fast);
  text-align: center;
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  overflow: hidden;
}

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

.certificate-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

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

.certificate-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  color: white;
  font-size: var(--font-size-2xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.certificate-card:hover .certificate-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-lg);
}

.certificate-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.certificate-issuer {
  font-size: var(--font-size-base);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.certificate-description {
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.certificate-skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

.cert-tag {
  background: var(--color-bg-secondary);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.cert-tag:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-2px);
  border-color: transparent;
}

.view-certificate-btn {
  margin-top: var(--spacing-lg);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.view-certificate-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.view-certificate-btn i {
  font-size: var(--font-size-base);
}

/* Certificate Modal */
.certificate-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.certificate-modal.show {
  opacity: 1;
}

.certificate-modal-content {
  background: var(--color-bg);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 90vw;
  max-height: 90vh;
  width: 800px;
  border: 2px solid var(--color-border);
  transform: scale(0.7);
  transition: transform var(--transition-normal);
  overflow: hidden;
}

.certificate-modal.show .certificate-modal-content {
  transform: scale(1);
}

.certificate-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--gradient-hero);
  color: white;
}

.certificate-modal-header h3 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.certificate-modal-close {
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: white;
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.certificate-modal-close:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: rotate(90deg);
}

.certificate-modal-body {
  padding: var(--spacing-xl);
  text-align: center;
}

.certificate-modal-image {
  width: 100%;
  height: auto;
  max-height: 60vh;
  object-fit: contain;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.certificate-modal-footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.certificate-modal-footer .btn-primary {
  margin: 0;
}

/* Contact Section */
.contact-section {
  background: var(--color-bg);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.contact-text {
  font-size: var(--font-size-lg);
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text);
}

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

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--color-border);
  transition: all var(--transition-fast);
}

.contact-method:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.contact-method i {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.contact-method h4 {
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.contact-method p {
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

.contact-form {
  background: var(--color-bg-secondary);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.contact-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-text-dark);
  font-size: var(--font-size-base);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
  background: var(--color-bg);
  color: var(--color-text-dark);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
footer {
  background: var(--gradient-hero);
  color: white;
  padding: var(--spacing-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.footer-text p {
  margin: 0;
  font-size: var(--font-size-sm);
  opacity: 0.95;
}

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

.footer-links a {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-lg);
  transition: all var(--transition-fast);
  text-decoration: none;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.footer-links a:hover {
  background: white;
  color: var(--color-primary);
  transform: translateY(-3px);
  border-color: white;
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-xl);
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    width: calc(100% - 60px);
    margin-left: 60px;
    margin-right: 0;
    text-align: left;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }
  
  .timeline-marker {
    left: 30px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
  }

  [data-theme="dark"] .nav-links {
    background: rgba(15, 23, 42, 0.98);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    padding: var(--spacing-md) var(--spacing-lg);
  }

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

  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }

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

  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }

  .hero {
    padding-top: 100px;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-buttons {
    justify-content: center;
  }

  .image-container {
    width: 300px;
    height: 300px;
  }

  .about-stats {
    justify-content: center;
    flex-wrap: wrap;
  }

  .stat {
    flex: 1 1 calc(50% - var(--spacing-lg));
    min-width: 120px;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

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

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

  .certificates-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .page-title {
    font-size: var(--font-size-3xl);
  }

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

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .section-title {
    font-size: var(--font-size-xl);
  }

  .btn-primary,
  .btn-secondary {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .hero-buttons .btn-primary,
  .hero-buttons .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .image-container {
    width: 250px;
    height: 250px;
  }

  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    width: calc(100% - 40px);
    margin-left: 40px;
    padding: var(--spacing-md);
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-marker {
    left: 20px;
    width: 16px;
    height: 16px;
  }

  .page-title {
    font-size: var(--font-size-2xl);
  }

  .page-subtitle {
    font-size: var(--font-size-base);
  }

  .tech-icons {
    bottom: -15px;
    right: -15px;
  }

  .tech-icons i {
    width: 35px;
    height: 35px;
    font-size: var(--font-size-base);
  }

  .stat {
    flex: 1 1 100%;
  }

  .contact-form {
    padding: var(--spacing-lg);
  }
}

a:focus,
button:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

html {
  scroll-behavior: smooth;
}

::selection {
  background: var(--color-primary);
  color: white;
}

::-moz-selection {
  background: var(--color-primary);
  color: white;
}

/* =========================
   RESUME BUTTON
========================= */

.resume-btn{
  display:flex;
  align-items:center;
  gap:0.55rem;

  padding:0.72rem 1.15rem;

  border-radius:14px;

  background:var(--accent-color);

  color:#ffffff !important;

  font-weight:600;

  text-decoration:none;

  transition:all 0.3s ease;

  border:1px solid transparent;

  white-space:nowrap;
}

/* Resume Hover */

.resume-btn:hover{
  transform:translateY(-2px);
  opacity:0.92;
}

/* =========================
   LIGHT THEME FIX
========================= */

[data-theme="light"] .resume-btn{
  background:linear-gradient(
    135deg,
    #2563eb,
    #3b82f6
  );

  color:#ffffff !important;

  box-shadow:
    0 4px 14px rgba(59,130,246,0.18);
}

/* =========================
   DARK THEME
========================= */

[data-theme="dark"] .resume-btn{
  background:linear-gradient(
    135deg,
    var(--accent-color),
    #2563eb
  );

  color:#ffffff !important;

  box-shadow:
    0 4px 18px rgba(var(--accent-rgb,59,130,246),0.25);
}
/* =========================
   RESUME DROPDOWN
========================= */

.resume-dropdown{
  position:relative;
}

/* Main Button */

.resume-btn{
  display:flex;
  align-items:center;
  gap:0.55rem;

  padding:0.72rem 1.15rem;

  border-radius:14px;

  background:linear-gradient(
    135deg,
    var(--accent-color),
    #2563eb
  );

  color:#fff !important;

  font-weight:600;

  text-decoration:none;

  border:none;

  cursor:pointer;

  transition:all 0.3s ease;

  box-shadow:
    0 4px 14px rgba(var(--accent-rgb,59,130,246),0.18);
}

.resume-btn:hover{
  transform:translateY(-2px);
}

/* Arrow */

.dropdown-arrow{
  font-size:0.75rem;
}

/* Dropdown Content */

.resume-dropdown-content{
  position:absolute;

  top:115%;
  right:0;

  min-width:210px;

  background:var(--card-bg);

  border:1px solid var(--border-color);

  border-radius:14px;

  overflow:hidden;

  opacity:0;
  visibility:hidden;
  transform:translateY(10px);

  transition:all 0.25s ease;

  z-index:1000;

  box-shadow:
    0 10px 30px rgba(0,0,0,0.12);
}

/* Show Dropdown */

.resume-dropdown:hover .resume-dropdown-content{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}

/* Options */

.resume-option{
  display:flex;
  align-items:center;
  gap:0.75rem;

  padding:0.9rem 1rem;

  text-decoration:none;

  color:var(--text-primary);

  font-size:0.92rem;

  transition:all 0.2s ease;
}

/* Hover */

.resume-option:hover{
  background:rgba(var(--accent-rgb,59,130,246),0.08);
  color:var(--accent-color);
}