/* ===== CSS VARIABLES ===== */
:root {
  /* Light Theme Colors */
  --primary-color: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;

  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;

  /* Text Colors */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;

  /* Border Colors */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  /* Shadow Colors */
  --shadow-light: rgba(0, 0, 0, 0.05);
  --shadow-medium: rgba(0, 0, 0, 0.1);
  --shadow-dark: rgba(0, 0, 0, 0.15);

  /* Gradient Colors */
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);

  /* Fonts */
  --font-primary: "Inter", sans-serif;
  --font-secondary: "Poppins", sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --container-padding: 0 20px;

  /* Border Radius */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-xl: 30px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark Theme Colors */
.dark-mode {
  --primary-color: #60a5fa;
  --primary-dark: #3b82f6;
  --primary-light: #93c5fd;
  --secondary-color: #94a3b8;
  --accent-color: #fbbf24;

  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  --border-color: #334155;
  --border-light: #475569;

  --shadow-light: rgba(0, 0, 0, 0.2);
  --shadow-medium: rgba(0, 0, 0, 0.3);
  --shadow-dark: rgba(0, 0, 0, 0.4);
}

/* ===== GLOBAL STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

/* ===== TYPOGRAPHY ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 12px 24px;
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
  color: white;
}

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

.btn-outline-primary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

/* ===== NAVIGATION ===== */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  transition: all var(--transition-normal);
}

.dark-mode .navbar {
  background: rgba(15, 23, 42, 0.95);
}

.navbar-brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.brand-text {
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: -2px;
}

.navbar-nav .nav-link {
  color: var(--text-primary);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.navbar-nav .nav-link:hover {
  color: var(--primary-color);
  background: var(--bg-secondary);
}

.social-links {
  display: flex;
  gap: 0.5rem;
  margin: 0 1rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  background: var(--bg-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  border-radius: var(--border-radius-md);
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.theme-toggle:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
}

.navbar-toggler-icon {
  background-image: none;
  width: 24px;
  height: 24px;
  position: relative;
}

.navbar-toggler-icon::before {
  content: "\f0c9";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--text-primary);
  font-size: 1.2rem;
}

/* ===== HERO SECTION ===== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
}

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

.hero-particles {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(59, 130, 246, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(139, 92, 246, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 80%,
      rgba(6, 182, 212, 0.1) 0%,
      transparent 50%
    );
}

.hero-content {
  padding: 2rem 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.image-container {
  position: relative;
  width: 350px;
  height: 350px;
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--primary-color);
  transition: opacity var(--transition-slow);
  box-shadow: 0 20px 40px var(--shadow-medium);
}

.image-decoration {
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  opacity: 0.3;
  animation: rotate 20s linear infinite;
}

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

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-arrow {
  color: var(--text-secondary);
  font-size: 1.5rem;
}

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

/* ===== SECTION STYLES ===== */
section {
  padding: var(--section-padding);
}

.section-header {
  margin-bottom: 4rem;
}

.section-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

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

/* ===== ABOUT SECTION ===== */
.about-section {
  background: var(--bg-secondary);
}

.about-content {
  padding: 2rem 0;
}

.about-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.about-highlights {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  flex: 1;
  min-width: 250px;
}

.highlight-item i {
  font-size: 2rem;
  color: var(--primary-color);
}

.highlight-item h5 {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.highlight-item p {
  color: var(--text-secondary);
  margin: 0;
}

.about-image img {
  box-shadow: 0 20px 40px var(--shadow-medium);
}

/* ===== SKILLS SECTION ===== */
.skills-section {
  background: var(--bg-primary);
}

.skills-category {
  padding: 2rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  height: 100%;
}

.skills-category-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.skills-category-title i {
  color: var(--primary-color);
  font-size: 1.5rem;
}

.skill-item {
  margin-bottom: 1.5rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.skill-name {
  font-weight: 500;
  color: var(--text-primary);
}

.skill-level {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.skill-bar {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 4px;
  transition: width 1s ease-in-out;
}

.soft-skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.soft-skill-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-primary);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.soft-skill-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-medium);
}

.soft-skill-item i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

/* ===== PROJECTS SECTION ===== */
.projects-section {
  background: var(--bg-secondary);
}

.project-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-normal);
  height: 100%;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-medium);
}

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

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

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

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

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

.project-link:hover {
  background: var(--primary-dark);
  transform: scale(1.1);
  color: white;
}

.project-content {
  padding: 2rem;
}

.project-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--primary-color);
  color: white;
  border-radius: var(--border-radius-xl);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.project-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

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

.tech-tag {
  padding: 0.25rem 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ===== SERVICES SECTION ===== */
.services-section {
  background: var(--bg-primary);
}

.service-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: all var(--transition-normal);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.service-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);
}

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

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-medium);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-icon i {
  font-size: 2rem;
  color: white;
}

.service-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.service-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.service-features {
  text-align: left;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.feature-item i {
  color: var(--primary-color);
  font-size: 0.9rem;
}

/* ===== EXPERIENCE SECTION ===== */
.experience-section {
  background: var(--bg-secondary);
}

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

.timeline::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 80px;
}

.timeline-marker {
  position: absolute;
  left: 15px;
  top: 0;
  width: 30px;
  height: 30px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.9rem;
}

.timeline-content {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  position: relative;
}

.timeline-content::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 20px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-right: 10px solid var(--border-color);
}

.timeline-content::after {
  content: "";
  position: absolute;
  left: -9px;
  top: 20px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-right: 10px solid var(--bg-primary);
}

.timeline-date {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--primary-color);
  color: white;
  border-radius: var(--border-radius-xl);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.timeline-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.timeline-location {
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1rem;
}

.timeline-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.timeline-skills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.skill-badge {
  padding: 0.25rem 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.timeline-grade {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  border-left: 4px solid var(--primary-color);
}

.grade-label {
  font-weight: 500;
  color: var(--text-secondary);
}

.grade-value {
  font-weight: 600;
  color: var(--primary-color);
  margin-left: 0.5rem;
}

/* ===== CONTACT SECTION ===== */
.contact-section {
  background: var(--bg-primary);
}

.contact-content {
  text-align: center;
}

.contact-item {
  padding: 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-normal);
  height: 100%;
}

.contact-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px var(--shadow-medium);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

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

.contact-item h5 {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.contact-item p {
  color: var(--text-secondary);
  margin: 0;
}

.contact-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 3rem;
  flex-wrap: wrap;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 2rem;
}

.footer-content {
  text-align: center;
}

.footer-brand h4 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.footer-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
}

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

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

/* ===== SCROLL TO TOP ===== */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  transition: all var(--transition-normal);
  z-index: 1000;
}

.scroll-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.scroll-to-top.show {
  display: flex;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
  .container {
    max-width: 100%;
    padding: 0 2rem;
  }
}

@media (max-width: 992px) {
  :root {
    --section-padding: 80px 0;
  }

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

  .about-highlights {
    flex-direction: column;
  }

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

  .timeline-item {
    padding-left: 60px;
  }

  .timeline-marker {
    left: 5px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
    --container-padding: 0 1rem;
  }

  .navbar {
    padding: 0.75rem 0;
  }

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

  .hero-stats {
    gap: 1rem;
  }

  .stat-item {
    flex: 1;
  }

  .image-container {
    width: 280px;
    height: 280px;
  }

  .section-header {
    margin-bottom: 3rem;
  }

  .contact-actions {
    flex-direction: column;
    align-items: center;
  }

  .footer-links {
    gap: 0.75rem;
  }

  .scroll-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 45px;
    height: 45px;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.1rem;
  }

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

  .timeline {
    margin-left: 1rem;
  }

  .timeline::before {
    left: 10px;
  }

  .timeline-item {
    padding-left: 40px;
  }

  .timeline-marker {
    left: -5px;
    width: 20px;
    height: 20px;
    font-size: 0.7rem;
  }

  .timeline-content {
    padding: 1.5rem;
  }
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* Animation classes for scroll reveal */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ===== LOADING STATES ===== */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for better accessibility */
.btn:focus,
.theme-toggle:focus,
.nav-link:focus,
.social-link:focus,
.project-link:focus,
.footer-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000;
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.5);
    --shadow-dark: rgba(0, 0, 0, 0.7);
  }
}