:root {
  --primary-color: #6366f1;
  --secondary-color: #8b5cf6;
  --accent-color: #06b6d4;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-dark: #111827;
  --border-color: #e5e7eb;
  --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 20px 25px rgba(0, 0, 0, 0.1);
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

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

/* Loading Screen */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

.loader {
  text-align: center;
  color: white;
}

.loader-text {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

.loader-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.loader-dots span {
  width: 12px;
  height: 12px;
  background: white;
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

.loader-dots span:nth-child(1) {
  animation-delay: -0.32s;
}
.loader-dots span:nth-child(2) {
  animation-delay: -0.16s;
}

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

@keyframes bounce {
  0%,
  80%,
  100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1);
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
  border-bottom: 1px solid var(--border-color);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-medium);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo .logo-text {
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

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

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

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  z-index: 1001;
}

.bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
  padding-top: 70px;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23000" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="%23000" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

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

.greeting {
  display: block;
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.name {
  display: block;
  font-size: 3.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease-out 0.4s both;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  min-height: 2rem;
}

.typing-text {
  color: var(--primary-color);
  font-weight: 600;
}

.cursor {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.8;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  animation: fadeInUp 1s ease-out 0.8s both;
}

.btn {
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
  font-size: 1rem;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-heavy);
}

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

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

.hero-image {
  display: flex;
  justify-content: center;
  animation: slideInRight 1s ease-out;
}

.profile-card {
  height: 400px;
  width: 400px;
  position: relative;
  background: white;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--shadow-heavy);
  animation: float 6s ease-in-out infinite;
}

.profile-img {
  text-align: center;
  margin-bottom: 1rem;
}

.avatar {
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 700;
  color: white;
  margin: 0 auto;
  box-shadow: var(--shadow-medium);
  overflow: hidden;
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.floating-element {
  position: absolute;
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  animation: floatAround 8s ease-in-out infinite;
  animation-delay: var(--delay);
}

.floating-element:nth-child(1) {
  top: 20%;
  right: -20px;
}

.floating-element:nth-child(2) {
  bottom: 30%;
  left: -20px;
}

.floating-element:nth-child(3) {
  top: 60%;
  right: -10px;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes floatAround {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  25% {
    transform: translateY(-10px) rotate(90deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
  75% {
    transform: translateY(-10px) rotate(270deg);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 30px;
  height: 30px;
  border: 2px solid var(--primary-color);
  border-top: none;
  border-right: none;
  transform: rotate(-45deg);
}

/* Section Styles */
section {
  padding: 100px 0;
  position: relative;
}

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

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  position: relative;
}

.section-line {
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  margin: 0 auto;
  border-radius: 2px;
}

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

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

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

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-light);
  transition: transform 0.3s ease;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

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

.info-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
}

.info-card h3 {
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.info-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.info-item i {
  color: var(--primary-color);
  width: 20px;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.social-link:hover {
  transform: translateY(-3px) scale(1.1);
}

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

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gradient-primary);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 2rem;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 2rem;
}

.timeline-dot {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--primary-color);
  border-radius: 50%;
  top: 0;
  border: 4px solid white;
  box-shadow: var(--shadow-medium);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -8px;
}

.timeline-content {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
}

.timeline-content:hover {
  transform: translateY(-5px);
}

.timeline-date {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline-content h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.timeline-content h4 {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.timeline-content ul {
  list-style: none;
  padding-left: 0;
}

.timeline-content li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.timeline-content li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

/* Education Section */
.education {
  background: var(--bg-secondary);
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.education-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

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

.education-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.education-content h3 {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.education-content h4 {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.education-location,
.education-date,
.education-grade {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.education-grade {
  color: var(--primary-color);
  font-weight: 600;
}

/* Projects Section */
.projects {
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
}

.project-card:hover {
  transform: translateY(-10px);
}

.project-image {
  height: 200px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 3rem;
}

.project-content {
  padding: 2rem;
}

.project-content h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

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

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

.tech-tag {
  background: var(--bg-secondary);
  color: var(--primary-color);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Skills Section */
.skills-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
}

.skills-category h3 {
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  font-size: 1.25rem;
}

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

.skill-item {
  background: white;
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  box-shadow: var(--shadow-light);
  color: var(--text-primary);
  font-weight: 500;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.skill-item:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

/* Activities Section */
.activities {
  background: var(--bg-secondary);
}

.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.activity-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
}

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

.activity-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.activity-content h3 {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.activity-content h4 {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.activity-date {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

.activity-content ul {
  list-style: none;
  padding-left: 0;
}

.activity-content li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.activity-content li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--primary-color);
}

/* Certificates Section */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.certificate-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
  text-align: center;
}

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

.certificate-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin: 0 auto 1.5rem;
}

.certificate-content h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.certificate-issuer {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.certificate-date,
.certificate-id {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

/* Achievements Section */
.achievements {
  background: var(--bg-secondary);
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.achievement-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
}

.achievement-card:hover {
  transform: translateY(-10px);
}

.achievement-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;
  color: white;
  font-size: 2rem;
}

.achievement-card h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.achievement-card p {
  color: var(--text-secondary);
}

/* Core Strengths Section */
.strengths {
  background: var(--bg-secondary);
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.strength-item {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
  text-align: center;
}

.strength-item:hover {
  transform: translateY(-5px);
}

.strength-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin: 0 auto 1.5rem;
}

.strength-item h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.strength-item p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Hobbies Section */
.hobbies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.hobby-item {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  transition: transform 0.3s ease;
  text-align: center;
}

.hobby-item:hover {
  transform: translateY(-5px);
}

.hobby-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin: 0 auto 1.5rem;
}

.hobby-item h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.hobby-item p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.contact-item i {
  color: var(--primary-color);
  width: 20px;
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-family: inherit;
  transition: border-color 0.3s ease;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 2rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.footer-social .social-link {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

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

/* Animations */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Mobile Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    gap: 3rem;
  }

  .profile-card {
    width: 350px;
    height: 350px;
  }

  .avatar {
    width: 300px;
    height: 300px;
  }

  .about-content {
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-medium);
    padding: 2rem 0;
    height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-item {
    margin: 1rem 0;
  }

  .nav-link {
    font-size: 1.1rem;
    padding: 1rem;
    display: block;
  }

  .hero {
    padding-top: 70px;
    min-height: calc(100vh - 70px);
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .hero-text {
    order: 2;
  }

  .hero-image {
    order: 1;
  }

  .name {
    font-size: 2.5rem;
    line-height: 1.1;
  }

  .hero-subtitle {
    font-size: 1.3rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .btn {
    width: 100%;
    max-width: 250px;
    justify-content: center;
  }

  .profile-card {
    width: 280px;
    height: 280px;
    padding: 1.5rem;
  }

  .avatar {
    width: 250px;
    height: 250px;
  }

  .floating-element {
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }

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

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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

  .timeline-item {
    width: 100%;
    left: 0;
    padding-left: 3rem;
    padding-right: 0;
  }

  .timeline-dot {
    left: 12px !important;
  }

  .timeline-content {
    padding: 1.5rem;
  }

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

  .project-card {
    margin: 0 auto;
    max-width: 400px;
  }

  .skills-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .certificates-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

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

  .strengths-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

  .hobbies-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .education-card {
    flex-direction: column;
    text-align: center;
  }

  .education-icon {
    margin: 0 auto 1rem;
  }

  section {
    padding: 60px 0;
  }

  .container {
    padding: 0 15px;
  }
}

@media (max-width: 480px) {
  .name {
    font-size: 2rem;
  }

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

  .section-title {
    font-size: 1.8rem;
  }

  .profile-card {
    width: 250px;
    height: 250px;
    padding: 1rem;
  }

  .avatar {
    width: 220px;
    height: 220px;
  }

  .floating-element {
    width: 30px;
    height: 30px;
    font-size: 0.9rem;
  }

  .timeline-content {
    padding: 1rem;
  }

  .project-content {
    padding: 1.5rem;
  }

  .activity-card,
  .certificate-card,
  .achievement-card,
  .strength-item,
  .hobby-item {
    padding: 1.5rem;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .info-card {
    padding: 1.5rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  .hero-buttons {
    gap: 0.8rem;
  }

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

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

  .hobbies-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

@media (max-width: 360px) {
  .name {
    font-size: 1.8rem;
  }

  .profile-card {
    width: 220px;
    height: 220px;
  }

  .avatar {
    width: 190px;
    height: 190px;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .container {
    padding: 0 10px;
  }
}

/* Ripple effect for buttons */
.btn {
  position: relative;
  overflow: hidden;
}

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .skill-item:hover,
  .project-card:hover,
  .timeline-content:hover,
  .education-card:hover,
  .activity-card:hover,
  .certificate-card:hover,
  .achievement-card:hover,
  .strength-item:hover,
  .hobby-item:hover,
  .stat-item:hover {
    transform: none;
  }

  .btn:hover {
    transform: none;
  }

  .social-link:hover {
    transform: none;
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-heavy: 0 20px 25px rgba(0, 0, 0, 0.3);
  }
}