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

:root {
  /* Fonts */
  --font-heading: 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Transitions */
  --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);

  /* Layout sizing */
  --nav-height: 80px;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --max-width: 1200px;

  /* Theme Defaults (Dark Mode) */
  --bg-primary: #0a0c10;
  --bg-secondary: #121620;
  --bg-card: #161c2a;
  
  --accent-primary: #8b5cf6; /* Indigo/Purple */
  --accent-primary-rgb: 139, 92, 246;
  --accent-secondary: #06b6d4; /* Cyan */
  --accent-secondary-rgb: 6, 182, 212;
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --border-color: rgba(255, 255, 255, 0.08);
  --shadow-color: rgba(0, 0, 0, 0.4);
  --card-shadow: 0 15px 35px -5px var(--shadow-color);
  
  --glass-bg: rgba(18, 22, 32, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glow-color: rgba(139, 92, 246, 0.15);
}

/* Light Theme Variables overrides */
body.light-theme {
  --bg-primary: #f6f8fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  
  --accent-primary: #6d28d9; /* Deep Purple */
  --accent-primary-rgb: 109, 40, 217;
  --accent-secondary: #0891b2; /* Deep Cyan */
  --accent-secondary-rgb: 8, 145, 178;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --border-color: rgba(15, 23, 42, 0.08);
  --shadow-color: rgba(15, 23, 42, 0.08);
  --card-shadow: 0 15px 35px -5px var(--shadow-color);
  
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(15, 23, 42, 0.08);
  --glow-color: rgba(109, 40, 217, 0.05);
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

button {
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
  outline: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 5px;
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ==========================================================================
   Utility Classes & Grid Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0 4rem;
  position: relative;
}

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

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Glassmorphism utility */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
  font-size: 0.95rem;
  text-align: center;
  justify-content: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(var(--accent-primary-rgb), 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--accent-primary-rgb), 0.4);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border-color);
  transform: translateY(-2px);
}

/* Gradient text */
.text-gradient {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: background-color var(--transition-normal), border-bottom var(--transition-normal);
}

header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  height: 70px;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-heading);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
}

.logo-name {
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  gap: 0.35rem;
}

.logo-name span {
  font-weight: 300;
}

.logo-subtitle {
  font-size: 0.55rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-left: 1.2rem;
  margin-top: 0.15rem;
  white-space: nowrap;
}



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

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--border-color);
  color: var(--accent-primary);
  transform: rotate(15deg);
}

.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 {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 30px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-fast);
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    right: -100%;
    width: 250px;
    height: calc(100vh - var(--nav-height));
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    flex-direction: column;
    padding: 3rem 2rem;
    align-items: flex-start;
    gap: 1.5rem;
    transition: right var(--transition-normal);
    z-index: 999;
  }
  .nav-menu.open {
    right: 0;
  }
  .hamburger.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .hamburger.open span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow-color) 0%, rgba(0, 0, 0, 0) 70%);
  top: 15%;
  right: 10%;
  z-index: -1;
  filter: blur(40px);
  animation: pulse-glow 10s infinite alternate;
}

@keyframes pulse-glow {
  0% {
    transform: scale(1) translate(0, 0);
  }
  100% {
    transform: scale(1.2) translate(-20px, 30px);
  }
}

.hero-content {
  max-width: 650px;
}

.hero-tag {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(var(--accent-primary-rgb), 0.1);
  color: var(--accent-primary);
  border: 1px solid rgba(var(--accent-primary-rgb), 0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-content h1 {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.8rem;
  }
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

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

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-card {
  padding: 2.5rem;
  height: 100%;
}

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

.skills-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.skill-tag {
  padding: 0.4rem 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: rgba(var(--accent-primary-rgb), 0.05);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

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

.stat-card {
  padding: 2rem;
  text-align: center;
  transition: transform var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   Timeline / Experience Section
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 31px;
  top: 0;
  height: 100%;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 70px;
}

.timeline-dot {
  position: absolute;
  left: 20px;
  top: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 4px solid var(--accent-primary);
  z-index: 1;
  transition: background-color var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent-secondary);
}

.timeline-content {
  padding: 2rem;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  flex-direction: column;
  gap: 0.25rem;
}

@media (min-width: 600px) {
  .timeline-header {
    flex-direction: row;
    align-items: center;
  }
}

.timeline-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.08);
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  border: 1px solid rgba(var(--accent-primary-rgb), 0.15);
}

.timeline-role {
  font-size: 1.25rem;
  font-weight: 700;
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.timeline-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.timeline-logo {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #ffffff;
  object-fit: contain;
  padding: 4px;
  border: 1px solid var(--border-color);
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-fast);
}

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

.timeline-meta-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

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

.timeline-body ul {
  margin-top: 0.75rem;
  padding-left: 1.25rem;
  list-style-type: disc;
}

.timeline-body li {
  margin-bottom: 0.5rem;
}

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

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  box-shadow: 0 4px 12px rgba(var(--accent-primary-rgb), 0.2);
}

.portfolio-grid {
  min-height: 200px;
}

.portfolio-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  border-color: rgba(var(--accent-primary-rgb), 0.3);
  box-shadow: 0 20px 40px -15px var(--shadow-color);
}

.portfolio-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.portfolio-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent-secondary);
  letter-spacing: 0.5px;
}

.portfolio-links {
  display: flex;
  gap: 0.75rem;
}

.portfolio-icon-link {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.portfolio-icon-link:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.05);
}

.portfolio-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

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

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

.portfolio-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

/* ==========================================================================
   Blog Section
   ========================================================================== */
.blog-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  cursor: pointer;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.blog-card:hover {
  transform: translateY(-6px);
  border-color: rgba(var(--accent-primary-rgb), 0.3);
  box-shadow: 0 20px 40px -15px var(--shadow-color);
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 1rem;
}

.blog-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  transition: color var(--transition-fast);
}

.blog-card:hover h3 {
  color: var(--accent-primary);
}

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

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.blog-readmore {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition-fast);
}

.blog-card:hover .blog-readmore {
  gap: 0.5rem;
}

/* ==========================================================================
   Blog Reader Modal Overlay
   ========================================================================== */
.blog-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.blog-modal.open {
  opacity: 1;
  pointer-events: all;
}

.blog-modal-overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
}

.blog-modal-container {
  position: relative;
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  overflow-y: auto;
  z-index: 2001;
  padding: 3rem 2.5rem;
  transform: translateY(30px) scale(0.95);
  transition: transform var(--transition-normal);
}

.blog-modal.open .blog-modal-container {
  transform: translateY(0) scale(1);
}

.blog-modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.blog-modal-close:hover {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
}

.blog-modal-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.blog-modal-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.blog-modal-title {
  font-size: 2.2rem;
  line-height: 1.2;
}

.blog-modal-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.blog-modal-content p {
  margin-bottom: 1.5rem;
}

.blog-modal-content h3 {
  font-size: 1.4rem;
  margin: 2rem 0 1rem;
}

.blog-modal-content blockquote {
  border-left: 4px solid var(--accent-primary);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-primary);
}

.blog-modal-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  list-style-type: square;
}

.blog-modal-content li {
  margin-bottom: 0.5rem;
}

.blog-modal-content code {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-grid {
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1.2fr 1.8fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-method-card {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  position: relative;
  overflow: hidden;
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(var(--accent-primary-rgb), 0.08);
  border: 1px solid rgba(var(--accent-primary-rgb), 0.15);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-details {
  flex-grow: 1;
}

.contact-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-value {
  font-size: 1.05rem;
  font-weight: 700;
  margin-top: 0.15rem;
}

.contact-copy-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.contact-copy-btn:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.03);
}

.contact-copy-btn.copied {
  color: #10b981; /* Green success */
  border-color: #10b981;
  background: rgba(16, 185, 129, 0.08);
}

.copied-toast {
  position: absolute;
  top: 10px;
  right: 15px;
  background: #10b981;
  color: white;
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 4px;
  opacity: 0;
  transform: translateY(5px);
  transition: all var(--transition-fast);
}

.copied-toast.show {
  opacity: 1;
  transform: translateY(0);
}

.contact-form-card {
  padding: 2.5rem;
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.15);
  outline: none;
}

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

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-primary);
}

.footer-socials {
  display: flex;
  gap: 1rem;
  margin: 0.5rem 0;
}

.footer-social-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.footer-social-icon:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.03);
  transform: translateY(-2px);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  width: 100%;
  max-width: 600px;
  margin-top: 1rem;
}

/* ==========================================================================
   Booking Section Styles
   ========================================================================== */
.booking-card {
  position: relative;
  width: 100%;
  min-height: 650px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: var(--border-radius-lg);
  padding: 1rem;
}

#cal-embed-container {
  width: 100%;
  height: 100%;
  min-height: 620px;
  border: none;
}

/* Calendar Loading Skeleton */
.booking-skeleton {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-card);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  z-index: 5;
  transition: opacity var(--transition-slow);
}

.booking-skeleton.hide {
  opacity: 0;
  pointer-events: none;
}

.skeleton-header {
  width: 35%;
  height: 40px;
  border-radius: var(--border-radius-sm);
  background: linear-gradient(90deg, var(--bg-primary) 25%, var(--border-color) 50%, var(--bg-primary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
}

.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1.25rem;
  width: 100%;
}

.skeleton-day {
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(90deg, var(--bg-primary) 25%, var(--border-color) 50%, var(--bg-primary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
}

.skeleton-day:nth-child(even) {
  animation-delay: 0.1s;
}

.skeleton-day:nth-child(3n) {
  animation-delay: 0.2s;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

@media (max-width: 600px) {
  .booking-skeleton {
    padding: 1.5rem;
  }
  .skeleton-grid {
    gap: 0.5rem;
  }
}

/* ==========================================================================
   Language Selector Styles
   ========================================================================== */
.lang-selector {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 3px;
  background: rgba(255, 255, 255, 0.01);
  margin-right: 0.5rem;
}

.lang-btn {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: 50px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  text-transform: uppercase;
  line-height: 1;
}

.lang-btn:hover {
  color: var(--accent-primary);
}

.lang-btn.active {
  background: var(--accent-primary);
  color: #ffffff;
}

.desktop-only {
  display: none;
}

.mobile-only {
  display: flex;
}

@media (min-width: 769px) {
  .desktop-only {
    display: inline-flex;
  }
  .mobile-only {
    display: none;
  }
}

/* ==========================================================================
   Hero Image & Grid Layout Styles
   ========================================================================== */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 3rem;
  width: 100%;
}

.hero-image-container {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.hero-image-wrapper {
  position: relative;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  padding: 6px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  z-index: 2;
}

.hero-image-wrapper:hover {
  transform: translateY(-8px) rotateY(10deg);
  border-color: var(--accent-primary);
  box-shadow: 0 25px 50px -12px rgba(var(--accent-primary-rgb), 0.3);
}

.hero-profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.hero-image-border {
  position: absolute;
  top: -6px;
  left: -6px;
  right: -6px;
  bottom: -6px;
  border-radius: 50%;
  border: 2px dashed rgba(var(--accent-primary-rgb), 0.4);
  animation: rotate-dashed-border 60s linear infinite;
  pointer-events: none;
  z-index: -1;
}

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

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 4rem;
  }
  .hero-image-wrapper {
    width: 320px;
    height: 320px;
  }
}

/* ==========================================================================
   Separated Timeline Columns (Experience vs Education)
   ========================================================================== */
.timeline-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
  width: 100%;
  align-items: start;
  margin-top: 1.5rem;
}

.timeline-column {
  width: 100%;
}

.timeline-column .timeline {
  max-width: 100%;
  margin: 0;
  padding: 1.5rem 0;
}

.timeline-column-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  font-family: var(--font-heading);
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.timeline-column-title i {
  color: var(--accent-primary);
  font-size: 1.2rem;
}

@media (min-width: 992px) {
  .timeline-columns {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

/* ==========================================================================
   School Link Styles
   ========================================================================== */
.school-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.school-link:hover {
  color: var(--accent-primary);
}

.school-link-icon {
  font-size: 0.75rem;
  opacity: 0.6;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.school-link:hover .school-link-icon {
  transform: translate(1.5px, -1.5px);
  opacity: 1;
}