/* ============================================
   MODERN PORTFOLIO STYLESHEET
   Elegant animations and contemporary design
   ============================================ */

/* ========== CSS Variables ========== */
:root {
  /* Color Palette */
  --primary-dark: #0a0e27;
  --primary: #1a1f3a;
  --primary-light: #2a2f4a;
  --accent: #61dafb;
  --accent-hover: #4fc3e0;
  --accent-light: rgba(97, 218, 251, 0.1);
  --accent-glow: rgba(97, 218, 251, 0.3);
  
  --text-primary: #ffffff;
  --text-secondary: #b8bcc8;
  --text-muted: #8a8d9a;
  
  --bg-dark: #0a0e27;
  --bg-section: #111428;
  --bg-card: #1a1f3a;
  --bg-card-hover: #222740;
  
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #61dafb 0%, #4fc3e0 100%);
  --gradient-hero: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #2a2f4a 100%);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Typography */
  --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3.5rem;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px var(--accent-glow);
  --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.4);
}

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

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

body {
  font-family: var(--font-primary);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== Container ========== */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* ========== Hero Section ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  overflow: hidden;
  will-change: background-position;
}

/* Simplified animated background */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, var(--accent-light) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
  animation: float 25s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
  transform: translateZ(0);
}

@keyframes float {
  0%, 100% { 
    transform: translate3d(0, 0, 0) scale(1); 
  }
  50% { 
    transform: translate3d(0, -20px, 0) scale(1.05); 
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--spacing-lg) 0;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--accent) 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.hero-title .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(50px) rotateX(90deg);
  animation: charReveal 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
  animation-delay: calc(0.05s * var(--i));
}

@keyframes charReveal {
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0deg);
  }
}

.hero-subtitle {
  font-size: clamp(1.25rem, 3vw, 2rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  opacity: 0;
  animation: fadeInUp 1s ease-out 0.8s forwards;
  font-weight: 300;
  letter-spacing: 0.05em;
}

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

.hero-nav {
  margin-top: var(--spacing-lg);
}

.hero-nav ul {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  list-style: none;
}

.hero-nav li {
  position: relative;
}

.hero-nav a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-lg);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  transition: color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  display: block;
  overflow: hidden;
  will-change: transform;
}

.hero-nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-accent);
  transition: left var(--transition-base);
  z-index: -1;
  border-radius: 50px;
  will-change: left;
}

.hero-nav a:hover {
  color: var(--primary-dark);
  transform: translate3d(0, -2px, 0);
  box-shadow: var(--shadow-glow);
}

.hero-nav a:hover::before {
  left: 0;
}

/* ========== Sections ========== */
.section {
  padding: var(--spacing-xl) 0;
  position: relative;
  opacity: 0;
  transform: translateY(50px);
  transition: all var(--transition-slow);
}

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

.section:nth-child(even) {
  background: var(--bg-section);
}

.section h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  position: relative;
  display: inline-block;
  width: 100%;
  font-weight: 600;
  text-shadow: 
    0 0 20px rgba(97, 218, 251, 0.3),
    0 0 40px rgba(97, 218, 251, 0.1);
  letter-spacing: -0.02em;
}

.section h2::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translate3d(-50%, 0, 0);
  width: 80px;
  height: 4px;
  background: var(--gradient-accent);
  border-radius: 2px;
  animation: expandLine 0.8s ease-out 0.3s both, pulseGlow 3s ease-in-out infinite;
  box-shadow: 0 0 10px var(--accent);
  will-change: width, opacity, box-shadow;
}

@keyframes expandLine {
  from {
    width: 0;
    opacity: 0;
  }
  to {
    width: 80px;
    opacity: 1;
  }
}

@keyframes pulseGlow {
  0%, 100% { 
    box-shadow: 0 0 10px var(--accent); 
  }
  50% { 
    box-shadow: 0 0 20px var(--accent), 0 0 30px rgba(97, 218, 251, 0.5); 
  }
}

.section p {
  max-width: 800px;
  margin: var(--spacing-md) auto;
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  text-align: center;
}

#api-info p {
  font-size: 1.1rem;
  line-height: 1.9;
  letter-spacing: 0.01em;
  margin-bottom: 1.5rem;
}

#api-info a {
  position: relative;
  padding: 2px 4px;
  border-radius: 4px;
  transition: all var(--transition-base);
}

#api-info a:hover {
  text-shadow: 0 0 10px var(--accent);
  background: rgba(97, 218, 251, 0.1);
}

/* ========== Skills Grid ========== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md) 0;
}

.skill-card {
  background: var(--bg-card);
  padding: var(--spacing-md);
  border-radius: 16px;
  text-align: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  opacity: 0;
  transform: translate3d(0, 20px, 0) scale(0.95);
  border: 1px solid rgba(97, 218, 251, 0.1);
  will-change: transform, opacity;
}

.skill-card.is-visible {
  animation: cardPopIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  animation-delay: calc(0.05s * var(--index, 0));
}

@keyframes cardPopIn {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

.skill-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--accent-light) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-base), transform var(--transition-slow);
  transform: translate(-50%, -50%) scale(0);
}

.skill-card:hover {
  transform: translate3d(0, -10px, 0) scale(1.05);
  background: var(--bg-card-hover);
  border-color: var(--accent);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.skill-card:hover::before {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.skill-card h3 {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  font-weight: 500;
  position: relative;
  z-index: 1;
  transition: color var(--transition-base);
}

.skill-card:hover h3 {
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent-glow);
}

/* ========== Timeline ========== */
.timeline {
  position: relative;
  padding: var(--spacing-lg) 0 var(--spacing-lg) 60px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.timeline > h2 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  padding-left: 0 !important;
  margin-left: -60px;
  width: calc(100% + 60px);
  position: relative;
  z-index: 1;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
  animation: drawLine 1s ease-out 0.5s both;
}

@keyframes drawLine {
  from {
    height: 0;
    opacity: 0;
  }
  to {
    height: 100%;
    opacity: 1;
  }
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  padding-left: var(--spacing-md);
  margin-left: 0;
  opacity: 0;
  transform: translate3d(-30px, 0, 0);
  transition: opacity var(--transition-base), transform var(--transition-base);
  background: var(--bg-card);
  border-radius: 16px;
  border: 1px solid rgba(97, 218, 251, 0.1);
  box-shadow: var(--shadow-md);
  will-change: transform, opacity;
}

.timeline-item.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  animation: slideInRight 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translate3d(-30px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -48px;
  top: 24px;
  width: 20px;
  height: 20px;
  background: var(--bg-dark);
  border: 4px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--accent-glow);
  animation: pulse 3s ease-in-out infinite;
  z-index: 2;
  will-change: transform;
  transform: translateZ(0) scale(1);
}

@keyframes pulse {
  0%, 100% {
    transform: translateZ(0) scale(1);
    box-shadow: 0 0 20px var(--accent-glow);
  }
  50% {
    transform: translateZ(0) scale(1.08);
    box-shadow: 0 0 25px var(--accent-glow);
  }
}

.timeline-item h3 {
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.timeline-item .date {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.timeline-item ul {
  list-style: none;
  padding-left: 0;
  margin-top: var(--spacing-sm);
}

.timeline-item ul li {
  position: relative;
  padding-left: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
  line-height: 1.8;
  opacity: 0;
  transform: translate3d(-10px, 0, 0);
  transition: opacity var(--transition-base), transform var(--transition-base);
  will-change: transform, opacity;
}

.timeline-item.is-visible ul li {
  animation: listItemFade 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  animation-delay: calc(0.08s * var(--n, 1));
}

@keyframes listItemFade {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.timeline-item ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
  transition: transform var(--transition-fast);
}

.timeline-item ul li:hover::before {
  transform: translateX(5px);
}

/* ========== Footer ========== */
footer {
  background: var(--primary-dark);
  padding: var(--spacing-lg) 0;
  text-align: center;
  border-top: 1px solid rgba(97, 218, 251, 0.1);
  margin-top: var(--spacing-xl);
}

.footer-content p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
}

footer a {
  color: var(--accent);
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
}

footer a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

footer a:hover {
  color: var(--accent-hover);
}

footer a:hover::after {
  width: 100%;
}

/* ========== API Demo Styles ========== */
.sub-hero {
  background: var(--gradient-hero);
  padding: var(--spacing-lg) 0;
  color: var(--text-primary);
  border-bottom: 1px solid rgba(97, 218, 251, 0.1);
}

.sub-hero .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.sub-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  background: linear-gradient(135deg, var(--accent) 0%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#api-info {
  padding: var(--spacing-lg) 0;
}

#api-info h2 {
  margin-bottom: var(--spacing-md);
}

.api-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.api-section {
  background: var(--bg-card);
  padding: var(--spacing-md);
  border-radius: 16px;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(97, 218, 251, 0.2);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  opacity: 0;
  transform: translate3d(0, 30px, 0);
  animation: cardSlideIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  animation-delay: calc(0.1s * var(--index, 0));
  will-change: transform, opacity;
}

@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.api-section:hover {
  transform: translate3d(0, -5px, 0);
  box-shadow: 
    0 12px 48px rgba(0, 0, 0, 0.4),
    0 0 30px rgba(97, 218, 251, 0.3);
  border-color: var(--accent);
}

.api-section h3 {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-weight: 600;
  text-shadow: 0 0 15px rgba(97, 218, 251, 0.4);
}

.api-section p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  text-align: left;
}

.api-section input,
.api-section textarea {
  width: 100%;
  max-width: 400px;
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  background: var(--bg-section);
  border: 1px solid rgba(97, 218, 251, 0.2);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

.api-section input:focus,
.api-section textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 
    0 0 0 3px rgba(97, 218, 251, 0.2),
    0 0 20px rgba(97, 218, 251, 0.3);
  background: rgba(17, 20, 40, 0.8);
}

.api-section textarea {
  min-height: 100px;
  resize: vertical;
}

.api-section button {
  background: var(--gradient-accent);
  color: var(--primary-dark);
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 8px;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(97, 218, 251, 0.2);
}

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

.api-section button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.api-section button:hover {
  transform: translate3d(0, -2px, 0);
  box-shadow: 
    0 6px 20px rgba(97, 218, 251, 0.4),
    0 0 30px rgba(97, 218, 251, 0.3);
}

.api-section button:hover::after {
  width: 300px;
  height: 300px;
}

.api-section button:active {
  transform: translateY(0);
}

.api-section button.loading {
  color: transparent;
  pointer-events: none;
}

.api-section button.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid var(--primary-dark);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.api-section pre {
  background: linear-gradient(135deg, #0f1420 0%, #1a1f3a 100%);
  padding: var(--spacing-md);
  border-radius: 8px;
  overflow-x: auto;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  border-left: 3px solid var(--accent);
  border-top: 1px solid rgba(97, 218, 251, 0.1);
  border-right: 1px solid rgba(97, 218, 251, 0.1);
  border-bottom: 1px solid rgba(97, 218, 251, 0.1);
  margin-top: var(--spacing-md);
  max-height: 0;
  opacity: 0;
  transition: all var(--transition-base);
  font-family: 'Courier New', monospace;
  line-height: 1.6;
  position: relative;
}

.api-section pre::before {
  content: 'JSON';
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 0.7rem;
  color: var(--accent);
  opacity: 0.5;
  font-weight: 600;
  letter-spacing: 2px;
  font-family: var(--font-primary);
}

.api-section pre.show {
  max-height: 500px;
  opacity: 1;
  margin-top: var(--spacing-md);
}

/* ========== Cookie Consent ========== */
.cookie-consent {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  animation: slideUpIn 0.8s ease-out 1s forwards;
}

@keyframes slideUpIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cookie-container {
  background: var(--bg-card);
  padding: var(--spacing-md);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  max-width: 350px;
  border: 1px solid rgba(97, 218, 251, 0.2);
}

.cookie-container h2 {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.cookie-container p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  text-align: left;
}

.cookie-container .btn {
  background: var(--gradient-accent);
  color: var(--primary-dark);
  border: none;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-base);
}

.cookie-container .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .hero-nav ul {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-sm);
  }

  .timeline {
    padding-left: 50px;
    padding-right: var(--spacing-sm);
  }

  .timeline > h2 {
    padding-left: 0 !important;
    margin-left: -50px;
    width: calc(100% + 50px);
  }

  .timeline::before {
    left: 15px;
  }

  .timeline-item {
    padding-left: var(--spacing-md);
    margin-left: 0;
  }

  .timeline-item::before {
    left: -38px;
    width: 16px;
    height: 16px;
    border-width: 3px;
  }

  .section h2 {
    font-size: 2rem;
  }

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

  .cookie-consent {
    bottom: 10px;
    right: 10px;
    left: 10px;
  }

  .cookie-container {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    width: 95%;
    padding: 0 var(--spacing-xs);
  }

  .hero-title .char {
    font-size: 2rem;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline {
    padding-left: 40px;
    padding-right: var(--spacing-xs);
  }

  .timeline > h2 {
    padding-left: 0 !important;
    margin-left: -40px;
    width: calc(100% + 40px);
    font-size: 1.75rem;
  }

  .timeline::before {
    left: 12px;
    width: 2px;
  }

  .timeline-item {
    padding: var(--spacing-sm);
  }

  .timeline-item::before {
    left: -30px;
    width: 14px;
    height: 14px;
    border-width: 2px;
  }

  .timeline-item h3 {
    font-size: var(--font-size-lg);
  }

  .timeline-item .date {
    font-size: var(--font-size-xs);
  }
}

/* ========== Utility Classes ========== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-bottom {
  opacity: 0;
  transform: translateY(50px);
  transition: all var(--transition-slow);
}

.slide-in-bottom.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.zoom-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition-slow);
}

.zoom-in.is-visible {
  opacity: 1;
  transform: scale(1);
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--gradient-accent);
  border-radius: 5px;
}

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

/* ========== Selection Styling ========== */
::selection {
  background: var(--accent);
  color: var(--primary-dark);
}

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