@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables for Theme */
:root {
  --primary-font: 'Inter', sans-serif;
  --heading-font: 'Outfit', sans-serif;
  
  /* Dark Mode (Default) */
  --bg-primary: #080710;
  --bg-secondary: #0f0d22;
  --bg-tertiary: #171430;
  --text-primary: #f3f4f6;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent-1: #8b5cf6; /* Violet */
  --accent-2: #06b6d4; /* Cyan */
  --accent-1-glow: rgba(139, 92, 246, 0.35);
  --accent-2-glow: rgba(6, 182, 212, 0.35);
  --card-bg: rgba(15, 13, 34, 0.6);
  --card-border: rgba(139, 92, 246, 0.15);
  --card-hover-border: rgba(6, 182, 212, 0.4);
  --nav-bg: rgba(8, 7, 16, 0.7);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Override */
body.light-theme {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-1: #7c3aed; /* Violet */
  --accent-2: #0891b2; /* Cyan */
  --accent-1-glow: rgba(124, 58, 237, 0.15);
  --accent-2-glow: rgba(8, 145, 178, 0.15);
  --card-bg: rgba(255, 255, 255, 0.7);
  --card-border: rgba(124, 58, 237, 0.1);
  --card-hover-border: rgba(8, 145, 178, 0.3);
  --nav-bg: rgba(248, 250, 252, 0.75);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

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

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

body {
  font-family: var(--primary-font);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.5s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 5px;
  border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-1);
}

/* Base Layout Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Section Common Styling */
section {
  padding: 6rem 0;
  position: relative;
}

.section-title-wrapper {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-title {
  font-size: 2.5rem;
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-title-wrapper::after {
  content: '';
  display: block;
  width: 50px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--heading-font);
  font-size: 0.95rem;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #ffffff;
  box-shadow: 0 4px 15px var(--accent-1-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--accent-1-glow), 0 0 15px var(--accent-2-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(5px);
}

.btn-secondary:hover {
  border-color: var(--accent-1);
  transform: translateY(-3px);
  background: rgba(139, 92, 246, 0.05);
}

/* Glassmorphism Cards */
.glass-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.glass-card:hover {
  border-color: var(--card-hover-border);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3), 0 0 20px var(--accent-1-glow);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  transition: var(--transition);
}

header.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-family: var(--heading-font);
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  font-weight: 300;
  color: var(--text-primary);
  -webkit-text-fill-color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  transition: var(--transition);
}

.theme-toggle:hover {
  transform: rotate(15deg) scale(1.1);
  color: var(--accent-1);
  border-color: var(--accent-1);
}

.theme-toggle .sun-icon {
  display: none;
}

body.light-theme .theme-toggle .moon-icon {
  display: none;
}

body.light-theme .theme-toggle .sun-icon {
  display: block;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 8rem;
  background: radial-gradient(circle at 10% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 40%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-welcome {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-1);
  background: rgba(139, 92, 246, 0.1);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(139, 92, 246, 0.2);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  font-weight: 800;
}

.hero-title span {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle-container {
  font-size: 1.8rem;
  font-family: var(--heading-font);
  font-weight: 500;
  color: var(--text-secondary);
  height: 2.5rem;
  margin-bottom: 1.5rem;
}

.typewriter-cursor {
  display: inline-block;
  width: 3px;
  background-color: var(--accent-2);
  margin-left: 5px;
  animation: blink 0.75s step-end infinite;
}

.hero-description {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
}

/* Avatar / Graphical Element */
.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.avatar-container {
  width: 320px;
  height: 320px;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  background: linear-gradient(45deg, var(--accent-1), var(--accent-2));
  position: relative;
  animation: morphing 10s ease-in-out infinite alternate;
  box-shadow: 0 15px 35px var(--accent-1-glow);
  padding: 5px;
}

.avatar-inner {
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
  border-radius: inherit;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.avatar-inner img {
  width: 95%;
  height: 95%;
  object-fit: cover;
  border-radius: inherit;
}

/* SVG Graphic placeholder fallback if no image is used */
.avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: inherit;
}

.avatar-placeholder svg {
  width: 150px;
  height: 150px;
  fill: none;
  stroke: var(--accent-2);
  stroke-width: 1.5;
  filter: drop-shadow(0 0 8px var(--accent-2));
}

.hero-glow-1 {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-1-glow) 0%, transparent 70%);
  z-index: -1;
  top: -50px;
  right: -50px;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.about-details h3 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.about-details p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.info-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-start;
}

.info-icon {
  width: 45px;
  height: 45px;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-1);
  font-size: 1.2rem;
  border: 1px solid rgba(139, 92, 246, 0.2);
  margin-bottom: 0.5rem;
}

.info-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Skills Section */
.skills-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.skills-column h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skills-column h3 i {
  color: var(--accent-1);
}

.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.skill-item {
  width: 100%;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}

.skill-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.skill-percentage {
  color: var(--accent-2);
  font-weight: 700;
}

.skill-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--card-border);
}

.skill-progress {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  width: 0; /* Animated via JS */
  transition: width 1.5s cubic-bezier(0.1, 0.8, 0.2, 1);
  box-shadow: 0 0 10px var(--accent-2-glow);
}

.skills-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.skill-tag {
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.skill-tag:hover {
  border-color: var(--accent-2);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(6, 182, 212, 0.15);
}

.skill-tag i {
  color: var(--accent-1);
}

/* Experience & Education Section */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-1), var(--accent-2), transparent);
  transform: translateX(-50%);
}

.timeline-item {
  width: 100%;
  margin-bottom: 4rem;
  position: relative;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 4px solid var(--accent-1);
  position: absolute;
  left: 50%;
  top: 1.5rem;
  transform: translateX(-50%);
  z-index: 2;
  box-shadow: 0 0 10px var(--accent-1-glow);
  transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
  border-color: var(--accent-2);
  box-shadow: 0 0 15px var(--accent-2-glow);
  transform: translateX(-50%) scale(1.25);
}

.timeline-content {
  width: 45%;
  position: relative;
  padding: 2rem;
}

.timeline-item:nth-child(odd) .timeline-content {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  left: 55%;
  text-align: left;
}

.timeline-date {
  font-family: var(--heading-font);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 0.5rem;
  display: block;
}

.timeline-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.timeline-subtitle {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-1);
  margin-bottom: 1rem;
  display: block;
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Portfolio Section */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.filter-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  cursor: pointer;
  font-family: var(--heading-font);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 15px var(--accent-1-glow);
  transform: translateY(-2px);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.portfolio-item {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  transition: var(--transition), transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.portfolio-img-wrapper {
  position: relative;
  overflow: hidden;
  height: 220px;
  border-radius: 24px 24px 0 0;
}

.portfolio-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-img-wrapper img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 7, 16, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-link {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 5px 15px var(--accent-1-glow);
}

.portfolio-link:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 20px var(--accent-1-glow);
}

.portfolio-info {
  padding: 1.8rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.portfolio-tag {
  color: var(--accent-2);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.portfolio-title {
  font-size: 1.25rem;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}

.portfolio-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.portfolio-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.portfolio-tech {
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  border: 1px solid var(--card-border);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.contact-icon {
  width: 55px;
  height: 55px;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--accent-2);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.contact-item:hover .contact-icon {
  border-color: var(--accent-2);
  color: var(--accent-1);
  box-shadow: 0 0 15px var(--accent-2-glow);
  transform: translateY(-3px);
}

.contact-text-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-text-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-text-value a {
  transition: var(--transition);
}

.contact-text-value a:hover {
  color: var(--accent-2);
}

.social-title {
  font-size: 1.2rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-btn {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}

.social-btn:hover {
  transform: translateY(-5px);
  color: #ffffff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  box-shadow: 0 5px 15px var(--accent-1-glow);
}

/* Contact Form */
.contact-form {
  padding: 2.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group-full {
  grid-column: span 2;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  padding: 0.9rem 1.2rem;
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--primary-font);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

.contact-form .btn {
  grid-column: span 2;
  justify-self: flex-start;
}

/* Footer Section */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--card-border);
  padding: 3rem 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-logo {
  font-family: var(--heading-font);
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 5px 15px var(--accent-1-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 99;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px var(--accent-1-glow);
}

/* Scroll Animation Reveal Classes */
.reveal {
  position: relative;
  opacity: 0;
  transition: opacity 1s ease, transform 1s ease;
}

.reveal.reveal-left {
  transform: translateX(-50px);
}

.reveal.reveal-right {
  transform: translateX(50px);
}

.reveal.reveal-bottom {
  transform: translateY(50px);
}

.reveal.active {
  opacity: 1;
  transform: translate(0, 0);
}

/* Animations keyframes */
@keyframes blink {
  from, to { border-color: transparent }
  50% { background-color: transparent }
}

@keyframes morphing {
  0% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
  25% {
    border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
  }
  50% {
    border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
  }
  75% {
    border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
  }
  100% {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  html {
    font-size: 15px;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 4rem;
  }
  
  .hero-content {
    align-items: center;
  }
  
  .hero-title {
    font-size: 3.2rem;
  }
  
  .hero-subtitle-container {
    height: auto;
    margin-bottom: 2rem;
  }
  
  .hero-description {
    margin: 0 auto 2.5rem;
  }
  
  .hero-image-wrapper {
    order: -1;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .skills-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-dot {
    left: 20px;
  }
  
  .timeline-content {
    width: calc(100% - 50px);
    margin-left: 50px;
    text-align: left !important;
    left: 0 !important;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  header {
    padding: 0.5rem 0;
  }
  
  .hamburger {
    display: block;
    z-index: 1001;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 280px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--card-border);
    flex-direction: column;
    justify-content: center;
    gap: 2.5rem;
    padding: 2rem;
    transition: 0.4s ease-in-out;
    z-index: 1000;
    box-shadow: var(--shadow);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }
  
  .contact-form {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }
  
  .form-group-full {
    grid-column: span 1;
  }
  
  .contact-form .btn {
    grid-column: span 1;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .avatar-container {
    width: 250px;
    height: 250px;
  }
  
  .info-cards {
    grid-template-columns: 1fr;
  }
  
  .portfolio-filters {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .container {
    padding: 0 1.5rem;
  }
}

/* Profile Image Protection */
.avatar-inner img {
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

/* Lightbox Modal */
.lightbox-modal {
  display: none;
  position: fixed;
  z-index: 2000;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(8, 7, 16, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lightbox-content {
  margin: auto;
  display: block;
  max-width: 85%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 30px var(--accent-1-glow);
  animation: lightboxZoom 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox-close {
  position: absolute;
  top: 40px;
  right: 40px;
  color: var(--text-primary);
  font-size: 40px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
}

.lightbox-close:hover {
  color: var(--accent-1);
  border-color: var(--accent-1);
  transform: scale(1.1) rotate(90deg);
  box-shadow: 0 0 15px var(--accent-1-glow);
}

#lightbox-caption {
  margin: 20px auto 0;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: var(--text-primary);
  font-family: var(--heading-font);
  font-size: 1.25rem;
  font-weight: 700;
}

#lightbox-desc {
  margin: 10px auto 0;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

@keyframes lightboxZoom {
  from { transform: scale(0.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* Centered Contact Cards Layout */
.contact-cards-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem 1.5rem;
  position: relative;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
}

.contact-card-icon {
  width: 60px;
  height: 60px;
  border-radius: 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--card-border);
  color: var(--accent-2);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.contact-card:hover .contact-card-icon {
  border-color: var(--accent-2);
  color: var(--accent-1);
  box-shadow: 0 0 20px var(--accent-2-glow);
  transform: translateY(-3px) scale(1.05);
}

.contact-card-title {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-family: var(--heading-font);
  font-weight: 700;
}

.contact-card-value {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  word-break: break-all;
}

.contact-card-action {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  margin-top: auto;
}

.contact-card:hover .contact-card-action {
  color: var(--accent-2);
}

.contact-card:hover .contact-card-action i {
  transform: translateX(4px);
}

.contact-card.no-link .contact-card-action {
  color: var(--text-muted);
}

.contact-cta-text {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.contact-cta-text p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.contact-cta-text p i {
  color: var(--accent-2);
}

.social-links-centered {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

/* Responsive adjustment for contact cards */
@media (max-width: 992px) {
  .contact-cards-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .contact-cards-container {
    grid-template-columns: 1fr;
  }
}

/* Print Stylesheet */
@media print {
  /* Page configuration */
  @page {
    size: A4;
    margin: 15mm 15mm 15mm 15mm;
  }

  :root {
    --bg-primary: #ffffff !important;
    --bg-secondary: #ffffff !important;
    --bg-tertiary: #f8fafc !important;
    --text-primary: #0f172a !important;
    --text-secondary: #475569 !important;
    --text-muted: #64748b !important;
    --accent-1: #7c3aed !important; /* Deep Violet */
    --accent-2: #0891b2 !important; /* Deep Cyan */
    --card-bg: #ffffff !important;
    --card-border: #e2e8f0 !important;
  }

  body {
    background: #ffffff !important;
    color: #0f172a !important;
    font-size: 10pt !important;
    line-height: 1.5 !important;
  }

  /* Visibility resets */
  header, 
  .nav-actions, 
  .hamburger, 
  .hero-welcome, 
  .hero-cta, 
  .portfolio-overlay, 
  .portfolio-filters, 
  #contact-form-el, 
  .back-to-top, 
  .theme-toggle, 
  footer, 
  .skills-tag-cloud i,
  .info-icon,
  .contact-icon,
  .timeline-dot {
    display: none !important;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .container {
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  section {
    padding: 1.5rem 0 !important;
    border-bottom: 1px dashed #e2e8f0 !important;
    page-break-inside: auto !important;
  }
  
  section:last-of-type {
    border-bottom: none !important;
  }

  /* Header elements standard text */
  .hero-title span, 
  .logo, 
  .logo span, 
  .section-title {
    background: none !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    -webkit-text-fill-color: #0f172a !important;
    color: #0f172a !important;
  }

  .section-title-wrapper {
    margin-bottom: 1.5rem !important;
    text-align: left !important;
  }

  .section-title-wrapper::after {
    margin: 0.5rem 0 0 !important;
    background: var(--accent-1) !important;
  }

  /* Hero Section Restructure */
  .hero {
    min-height: auto !important;
    padding: 1rem 0 !important;
    background: none !important;
  }

  .hero-grid {
    display: flex !important;
    flex-direction: row !important;
    justify-content: space-between !important;
    align-items: center !important;
    gap: 3rem !important;
  }

  .hero-content {
    flex: 1 !important;
  }

  .hero-title {
    font-size: 2.25rem !important;
    margin-bottom: 0.5rem !important;
    color: #0f172a !important;
  }

  .hero-title span {
    color: var(--accent-1) !important;
  }

  .hero-subtitle-container {
    height: auto !important;
    margin-bottom: 1rem !important;
  }

  #typewriter-text {
    display: none !important;
  }

  .print-only-subtitle {
    display: inline !important;
    font-size: 1.35rem !important;
    font-weight: 700 !important;
    color: var(--accent-2) !important;
  }

  .hero-description {
    font-size: 10pt !important;
    margin-bottom: 0 !important;
    color: var(--text-secondary) !important;
  }

  .hero-image-wrapper {
    flex-shrink: 0 !important;
  }

  .avatar-container {
    width: 110px !important;
    height: 110px !important;
    border-radius: 50% !important;
    box-shadow: none !important;
    background: transparent !important;
    border: 2px solid var(--accent-1) !important;
    padding: 0 !important;
    animation: none !important;
  }

  .avatar-inner, .avatar-inner img {
    border-radius: 50% !important;
  }

  .avatar-inner img {
    width: 100% !important;
    height: 100% !important;
    border-radius: 50% !important;
    object-fit: cover !important;
  }

  /* About Section */
  .about-grid {
    display: grid !important;
    grid-template-columns: 1.2fr 0.8fr !important;
    gap: 2rem !important;
  }

  .info-cards {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 1rem !important;
  }

  .info-card {
    padding: 0.75rem !important;
    border-radius: 8px !important;
    border: 1px solid var(--card-border) !important;
    background: var(--bg-tertiary) !important;
  }

  .info-label {
    font-size: 8pt !important;
  }

  .info-value {
    font-size: 10pt !important;
    color: var(--accent-1) !important;
  }

  /* Skills Section */
  .skills-container {
    display: grid !important;
    grid-template-columns: 1.1fr 0.9fr !important;
    gap: 2rem !important;
    page-break-inside: avoid;
  }

  .skills-column h3 {
    font-size: 1.15rem !important;
    margin-bottom: 1rem !important;
    color: #0f172a !important;
  }

  .skill-item {
    margin-bottom: 0.75rem !important;
  }

  .skill-info {
    margin-bottom: 0.25rem !important;
  }

  .skill-name {
    font-size: 9.5pt !important;
  }

  .skill-percentage {
    font-size: 9.5pt !important;
    color: var(--accent-2) !important;
  }

  .skill-bar {
    height: 5px !important;
    background: #e2e8f0 !important;
    border: none !important;
    border-radius: 2px !important;
  }

  .skill-progress {
    background: var(--accent-1) !important;
    box-shadow: none !important;
    border-radius: 2px !important;
  }

  .skills-tag-cloud {
    gap: 0.5rem !important;
  }

  .skill-tag {
    font-size: 8.5pt !important;
    padding: 0.25rem 0.6rem !important;
    border: 1px solid var(--card-border) !important;
    background: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    border-radius: 4px !important;
  }

  /* Timeline Section (Clean vertical list) */
  .timeline {
    display: block !important;
  }

  .timeline::before {
    display: none !important; /* Hide line */
  }

  .timeline-item {
    width: 100% !important;
    left: 0 !important;
    text-align: left !important;
    margin-bottom: 1.5rem !important;
    page-break-inside: avoid;
  }

  .timeline-content {
    width: 100% !important;
    left: 0 !important;
    text-align: left !important;
    padding: 0 !important;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
  }

  .timeline-date {
    font-size: 9pt !important;
    color: var(--accent-2) !important;
    margin-bottom: 0.25rem !important;
  }

  .timeline-title {
    font-size: 1.15rem !important;
    margin-bottom: 0.25rem !important;
    color: #0f172a !important;
  }

  .timeline-subtitle {
    font-size: 9.5pt !important;
    color: var(--accent-1) !important;
    margin-bottom: 0.5rem !important;
  }

  .timeline-desc {
    font-size: 9.5pt !important;
  }

  /* Portfolio Section (Structured Rows) */
  .portfolio-grid {
    display: block !important;
  }

  .portfolio-item {
    display: flex !important;
    flex-direction: row !important;
    gap: 1.25rem !important;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin-bottom: 1.75rem !important;
    page-break-inside: avoid;
  }

  .portfolio-img-wrapper {
    width: 110px !important;
    height: 75px !important;
    flex-shrink: 0 !important;
    border-radius: 8px !important;
    border: 1px solid var(--card-border) !important;
  }

  .portfolio-img-wrapper img {
    border-radius: 8px !important;
  }

  .portfolio-info {
    padding: 0 !important;
  }

  .portfolio-tag {
    font-size: 8pt !important;
    margin-bottom: 0.25rem !important;
  }

  .portfolio-title {
    font-size: 1.1rem !important;
    margin-bottom: 0.25rem !important;
  }

  .portfolio-desc {
    font-size: 9pt !important;
    margin-bottom: 0.5rem !important;
  }

  .portfolio-tech-list {
    gap: 0.35rem !important;
  }

  .portfolio-tech {
    font-size: 8pt !important;
    padding: 0.15rem 0.5rem !important;
    background: var(--bg-tertiary) !important;
    border: 1px solid var(--card-border) !important;
    border-radius: 4px !important;
  }

  /* Contact Section */
  .contact-grid {
    display: block !important;
  }

  .contact-info {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1rem !important;
  }

  .contact-item {
    gap: 0.5rem !important;
  }

  .contact-text-label {
    font-size: 8pt !important;
  }

  .contact-text-value {
    font-size: 9.5pt !important;
    color: var(--accent-1) !important;
  }

  .social-title, .social-links {
    display: none !important;
  }

  /* Centered Contact Cards Print Layout */
  .contact-cards-container {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1rem !important;
    margin-bottom: 1rem !important;
  }

  .contact-card {
    padding: 1rem !important;
    border: 1px solid var(--card-border) !important;
    background: var(--bg-tertiary) !important;
    border-radius: 8px !important;
    align-items: flex-start !important;
    text-align: left !important;
    display: flex !important;
    flex-direction: column !important;
  }

  .contact-card-icon {
    display: none !important;
  }

  .contact-card-title {
    font-size: 9.5pt !important;
    margin-bottom: 0.25rem !important;
    color: #0f172a !important;
  }

  .contact-card-value {
    font-size: 9.5pt !important;
    color: var(--accent-1) !important;
    margin-bottom: 0 !important;
  }

  .contact-card-action, .social-links-centered {
    display: none !important;
  }
  
  .contact-cta-text {
    margin-top: 1rem !important;
  }
  
  .contact-cta-text p {
    font-size: 8.5pt !important;
    color: var(--text-muted) !important;
  }
}

.print-only-subtitle {
  display: none;
}