/* ===== GENERAL STYLES ===== */
:root {
  --primary-color: #007bff;
  --primary-color-dark: #0056b3;
  --primary-color-light: #e0f0ff;
  --secondary-color: #6c757d;
  --dark-color: #343a40;
  --light-color: #f8f9fa;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
  --body-color: #f8f9fa;
  --text-color: #333333;
  --border-color: #dee2e6;
  --transition: all 0.3s ease;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --border-radius: 5px;
  --border-radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--body-color);
  overflow-x: hidden;
  min-height: 100%;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

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

a:hover {
  color: var(--primary-color-dark);
}

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

ul {
  list-style: none;
}

section {
  padding: 80px 0;
  position: relative;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Enhanced button styles */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
  font-size: 1rem;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: translateX(-100%);
  transition: 0.6s;
  z-index: -1;
}

.btn:hover::before {
  transform: translateX(100%);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-color-dark);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 123, 255, 0.3);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: #5a6268;
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(108, 117, 125, 0.3);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 15px;
  color: var(--dark-color);
  position: relative;
  display: inline-block;
}

.section-header h2::before,
.section-header h2::after {
  content: '';
  position: absolute;
  width: 40px;
  height: 3px;
  background-color: var(--primary-color);
  bottom: -10px;
  transition: all 0.6s ease;
}

.section-header h2::before {
  left: 50%;
  transform: translateX(-125%);
}

.section-header h2::after {
  right: 50%;
  transform: translateX(125%);
}

.section-header:hover h2::before {
  transform: translateX(-175%);
}

.section-header:hover h2::after {
  transform: translateX(175%);
}

.underline {
  height: 4px;
  width: 60px;
  background-color: var(--primary-color);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.underline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
  transform: translateX(-100%);
}

.section-header:hover .underline::before {
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  padding: 15px 0;
  transition: all 0.4s ease;
}

.navbar.sticky {
  padding: 10px 0;
  background-color: white;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.logo a {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--dark-color);
  font-family: 'Poppins', sans-serif;
  transition: all 0.3s ease;
  position: relative;
  padding-left: 8px;
}

.logo a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 70%;
  background-color: var(--primary-color);
  transform: translateY(-50%);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.logo a:hover {
  color: var(--primary-color);
}

.logo a:hover::before {
  height: 90%;
  background-color: var(--primary-color-dark);
}

.nav-menu {
  display: flex;
}

.nav-menu li {
  margin-left: 30px;
}

.nav-menu li a {
  color: var(--dark-color);
  font-weight: 500;
  padding: 5px 0;
  position: relative;
  font-size: 1.05rem;
}

.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), width 0.3s ease-out;
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
  width: 100%;
  transform: scaleX(1);
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--primary-color);
}

.menu-toggle {
  display: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--dark-color);
  transition: all 0.3s ease;
}

.menu-toggle:hover {
  color: var(--primary-color);
}

/* ===== HERO SECTION ===== */
.hero {
  height: 100vh;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  position: relative;
  color: white;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(0, 123, 255, 0.3), transparent 60%);
  z-index: 1;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  position: relative;
  display: inline-block;
}

.hero-content p {
  font-size: 1.4rem;
  margin-bottom: 30px;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
  max-width: 80%;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  margin-top: 30px;
}

.cta-buttons .btn {
  margin: 0 10px;
}

.scroll-down {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-down a {
  color: white;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.scroll-down a:hover {
  background-color: var(--primary-color);
  transform: scale(1.1);
}

/* ===== ABOUT SECTION ===== */
.about {
  position: relative;
  overflow: hidden;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at bottom left, rgba(0, 123, 255, 0.05), transparent 60%);
  z-index: 0;
}

.about-content {
  display: flex;
  flex-wrap: wrap;
  gap: 50px;
  position: relative;
  z-index: 1;
}

.about-image {
  flex: 1;
  min-width: 300px;
  position: relative;
}

.profile-img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--card-shadow);
  transition: all 0.5s ease;
  position: relative;
}

.about-image::before {
  content: '';
  position: absolute;
  width: 90%;
  height: 90%;
  border: 3px solid var(--primary-color);
  border-radius: var(--border-radius-lg);
  top: 20px;
  left: 20px;
  z-index: -1;
  opacity: 0.3;
  transition: all 0.5s ease;
}

.about-image:hover::before {
  top: 10px;
  left: 10px;
  opacity: 0.6;
}

.about-text {
  flex: 2;
  min-width: 300px;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  position: relative;
  display: inline-block;
}

.about-text h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 50px;
  height: 3px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.about-text:hover h3::after {
  width: 75px;
}

.about-text p {
  margin-bottom: 18px;
  line-height: 1.8;
  color: #555;
}

.personal-info {
  margin: 25px 0;
  background-color: rgba(255, 255, 255, 0.8);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.info-item {
  margin-bottom: 15px;
  display: flex;
}

.info-title {
  font-weight: 600;
  margin-right: 10px;
  min-width: 120px;
  display: flex;
  align-items: center;
}

.info-title i {
  margin-right: 10px;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.info-value {
  color: #555;
}

.social-links {
  margin-top: 25px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  margin-right: 12px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.2);
}

.social-links a:hover {
  transform: translateY(-5px) rotate(10deg);
  background-color: var(--primary-color-dark);
  box-shadow: 0 8px 20px rgba(0, 123, 255, 0.4);
}

.social-links a i {
  font-size: 1.1rem;
}

/* ===== SKILLS SECTION ===== */
.skills {
  background-color: #f9f9f9;
  position: relative;
  overflow: hidden;
}

.skills::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background-color: rgba(0, 123, 255, 0.05);
  z-index: 0;
}

.skills::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background-color: rgba(0, 123, 255, 0.03);
  z-index: 0;
}

.skill-category {
  margin-bottom: 50px;
  position: relative;
  z-index: 1;
}

.skill-category h3 {
  font-size: 1.6rem;
  margin-bottom: 25px;
  text-align: center;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.skill-category h3::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  justify-content: center;
}

.skill-item {
  background-color: white;
  border-radius: var(--border-radius-lg);
  padding: 28px 25px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.07);
  width: calc(33.33% - 25px);
  min-width: 250px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
}

.skill-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-color-dark));
  transform: translateY(-100%);
  transition: all 0.3s ease;
}

.skill-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.skill-item:hover::before {
  transform: translateY(0);
}

.skill-icon {
  font-size: 2.8rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
  display: inline-block;
}

.skill-item:hover .skill-icon {
  transform: rotateY(180deg);
  color: var(--primary-color-dark);
}

.skill-item h4 {
  margin-bottom: 15px;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.skill-item:hover h4 {
  color: var(--primary-color);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background-color: #e9ecef;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 15px;
  position: relative;
}

.progress {
  height: 100%;
  width: 0; /* Will be animated by JS */
  background: linear-gradient(90deg, var(--primary-color), var(--primary-color-dark));
  border-radius: 4px;
  position: relative;
}

.progress::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

/* ===== PROJECTS SECTION ===== */
.projects {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #fff, #f9f9f9);
}

.projects::before {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background-color: rgba(0, 123, 255, 0.05);
  top: 50px;
  left: -50px;
  z-index: 0;
}

.projects::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background-color: rgba(0, 123, 255, 0.03);
  bottom: -150px;
  right: -150px;
  z-index: 0;
}

.projects-filter {
  margin-bottom: 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.filter-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px 20px;
  font-size: 1rem;
  font-weight: 500;
  margin: 0 8px 10px;
  transition: all 0.3s ease;
  border-radius: 30px;
  color: var(--dark-color);
  position: relative;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.8);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 35px;
  position: relative;
  z-index: 1;
}

.project-item {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  background-color: white;
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
}

.project-item:hover {
  transform: translateY(-15px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.5s ease;
}

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 123, 255, 0.9), rgba(0, 123, 255, 0.7));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.4s ease;
}

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

.project-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background-color: white;
  color: var(--dark-color);
  border-radius: 50%;
  margin: 0 5px;
  transition: all 0.3s ease;
}

.project-links a:hover {
  background-color: var(--dark-color);
  color: white;
  transform: translateY(-5px);
}

.project-info {
  padding: 25px;
}

.project-info h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  transition: all 0.3s ease;
}

.project-item:hover .project-info h3 {
  color: var(--primary-color);
}

.project-info p {
  color: #666;
  margin-bottom: 18px;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.project-tags span {
  background-color: var(--primary-color-light);
  color: var(--primary-color-dark);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.project-tags span:hover {
  transform: translateY(-3px);
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 5px 10px rgba(0, 123, 255, 0.2);
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
  background-color: #f9f9f9;
  position: relative;
  overflow: hidden;
}

.experience::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 123, 255, 0.03), transparent);
  top: 0;
  left: 0;
}

.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary-color), var(--primary-color-dark));
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1.5px;
  border-radius: 3px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  width: 50%;
  box-sizing: border-box;
  margin-bottom: 40px;
}

.timeline-item:nth-child(odd) {
  left: 0;
}

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

.timeline-dot {
  position: absolute;
  width: 22px;
  height: 22px;
  right: -11px;
  background-color: white;
  border: 3px solid var(--primary-color);
  border-radius: 50%;
  z-index: 1;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -11px;
}

.timeline-content {
  padding: 25px;
  background-color: white;
  position: relative;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.4s ease;
}

.timeline-content::before {
  content: '';
  position: absolute;
  top: 20px;
  width: 0;
  height: 0;
  border-style: solid;
}

.timeline-item:nth-child(odd) .timeline-content::before {
  right: -15px;
  border-width: 10px 0 10px 15px;
  border-color: transparent transparent transparent white;
}

.timeline-item:nth-child(even) .timeline-content::before {
  left: -15px;
  border-width: 10px 15px 10px 0;
  border-color: transparent white transparent transparent;
}

.timeline-date {
  display: inline-block;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-color-dark));
  color: white;
  padding: 7px 18px;
  border-radius: 20px;
  font-size: 0.9rem;
  margin-bottom: 18px;
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.2);
}

.timeline-content h3 {
  font-size: 1.4rem;
  margin-bottom: 5px;
  color: var(--dark-color);
}

.timeline-content h4 {
  font-size: 1rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 500;
}

.timeline-content p {
  color: #666;
  line-height: 1.6;
}

.timeline-content ul {
  margin-top: 15px;
  padding-left: 20px;
}

.timeline-content ul li {
  margin-bottom: 8px;
  position: relative;
  padding-left: 15px;
  color: #555;
}

.timeline-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--primary-color);
  border-radius: 50%;
}

.timeline-item:hover .timeline-content {
  transform: translateY(-8px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

/* ===== CONTACT SECTION ===== */
.contact {
  background-color: #f9f9f9;
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(0, 123, 255, 0.05) 0%, transparent 60%);
  z-index: 0;
}

.contact::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background-color: rgba(0, 123, 255, 0.03);
  border-radius: 50%;
  bottom: -150px;
  left: -150px;
  z-index: 0;
}

.contact .container {
  position: relative;
  z-index: 1;
}

.contact-container {
  max-width: 800px;
  margin: 0 auto;
}

.contact-message-card {
  background: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
  transition: all 0.5s ease;
  padding: 50px 40px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
}

.contact-message-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 123, 255, 0.05) 0%, transparent 100%);
  z-index: -1;
}

.contact-message-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.contact-message h3 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--dark-color);
  font-weight: 700;
}

.contact-message p {
  margin-bottom: 10px;
  color: #666;
  font-size: 1.2rem;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

#email-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(45deg, var(--primary-color), var(--primary-color-dark));
  color: white;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-decoration: none;
  font-size: 2rem;
  padding: 12px 30px;
  box-shadow: 0 10px 25px rgba(0, 123, 255, 0.4);
  position: relative;
  overflow: hidden;
  margin: 15px 0 35px;
  border: 2px solid transparent;
}

#email-button:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 15px 35px rgba(0, 123, 255, 0.5);
  border-color: rgba(255, 255, 255, 0.2);
}

#email-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

#email-button:hover::before {
  transform: translateX(100%);
}

.button-text {
  position: relative;
  z-index: 2;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: linear-gradient(45deg, var(--primary-color), var(--primary-color-dark));
  color: white;
  border-radius: 30px;
  font-weight: 500;
  transition: all 0.4s ease;
  text-decoration: none;
  font-size: 1.05rem;
  margin-top: 10px;
  gap: 10px;
  box-shadow: 0 8px 20px rgba(0, 123, 255, 0.3);
}

.cta-button i {
  font-size: 0.9rem;
}

.cta-button:hover {
  background: var(--primary-color-dark);
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 123, 255, 0.4);
  color: white;
}

.cta-note {
  margin-top: 20px;
  font-size: 0.85rem;
  color: #888;
  font-style: italic;
}

.contact-message .social-links {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 15px;
}

.contact-message .social-links a {
  width: 45px;
  height: 45px;
  background: linear-gradient(45deg, var(--primary-color), var(--primary-color-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.contact-message .social-links a:hover {
  transform: translateY(-8px) rotate(10deg);
  box-shadow: 0 10px 25px rgba(0, 123, 255, 0.4);
}

/* ===== FOOTER ===== */
.footer {
  background: linear-gradient(to right, #343a40, #23272b);
  color: white;
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(to right, var(--primary-color), var(--primary-color-dark));
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.copyright p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  margin-left: 25px;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.footer-links a:hover {
  color: white;
}

.footer-links a:hover::after {
  width: 100%;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-dark));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 999;
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--primary-color-dark);
  color: white;
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 123, 255, 0.5);
}

/* ===== RESPONSIVE STYLES ===== */
@media screen and (max-width: 992px) {
  .section-header h2 {
    font-size: 2.2rem;
  }
  
  .timeline-item {
    width: 100%;
    padding-left: 80px;
    padding-right: 25px;
  }
  
  .timeline-item:nth-child(even) {
    left: 0;
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-dot {
    left: 20px;
    right: auto;
  }
  
  .timeline-item:nth-child(even) .timeline-dot {
    left: 20px;
  }
  
  .timeline-item:nth-child(even) .timeline-content::before {
    left: -15px;
    border-width: 10px 15px 10px 0;
    border-color: transparent white transparent transparent;
  }
  
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media screen and (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content p {
    font-size: 1.1rem;
    max-width: 90%;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 80%;
    height: calc(100vh - 70px);
    background-color: white;
    flex-direction: column;
    align-items: center;
    padding: 40px 0;
    transition: all 0.4s ease;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    overflow-y: auto;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu li {
    margin: 15px 0;
  }
  
  .nav-menu li a {
    font-size: 1.1rem;
  }
  
  .about-content, .contact-content {
    flex-direction: column;
  }
  
  section {
    padding: 60px 0;
  }
  
  .skill-item {
    width: calc(50% - 20px);
  }
  
  .contact-message-card {
    padding: 30px 20px;
  }
  
  .contact-message h3 {
    font-size: 1.6rem;
  }
  
  #email-button {
    font-size: 1.5rem;
    padding: 10px 20px;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }
  
  .footer-links {
    justify-content: center;
    margin-top: 10px;
  }
  
  .footer-links a {
    margin: 0 10px;
  }
}

@media screen and (max-width: 576px) {
  section {
    padding: 50px 0;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
    max-width: 100%;
  }
  
  .section-header h2 {
    font-size: 1.8rem;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .about-text h3 {
    font-size: 1.5rem;
  }
  
  .skill-item {
    width: 100%;
  }
  
  .cta-buttons .btn {
    display: block;
    width: 80%;
    margin: 10px auto;
  }
  
  .projects-filter .filter-btn {
    margin-bottom: 10px;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-content {
    padding: 20px 15px;
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}