/* ===== GENERAL STYLES ===== */
:root {
  --primary-color: #6366f1;
  --secondary-color: #4f46e5;
  --dark-color: #1e293b;
  --light-color: #f8fafc;
  --gray-color: #64748b;
  --border-color: #e2e8f0;
  --section-padding: 100px 0;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--dark-color);
  background-color: var(--light-color);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 15px;
}

.section-underline {
  height: 4px;
  width: 70px;
  background: var(--primary-color);
  margin: 0 auto 50px;
  border-radius: 5px;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

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

.primary-btn:hover {
  background-color: var(--secondary-color);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

.secondary-btn:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.highlight {
  color: var(--primary-color);
}

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: transparent;
  padding: 20px 0;
  z-index: 1000;
  transition: var(--transition);
}

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

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

.logo a {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  align-items: center;
}

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

.nav-link {
  font-weight: 500;
  position: relative;
  padding: 5px 0;
  transition: var(--transition);
}

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

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

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

.nav-toggle {
  display: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
}

.nav-toggle span {
  display: block;
  position: absolute;
  height: 3px;
  width: 100%;
  background: var(--primary-color);
  border-radius: 3px;
  opacity: 1;
  left: 0;
  transform: rotate(0deg);
  transition: var(--transition);
}

.nav-toggle span:nth-child(1) {
  top: 0px;
}

.nav-toggle span:nth-child(2) {
  top: 8px;
}

.nav-toggle span:nth-child(3) {
  top: 16px;
}

.nav-toggle.active span:nth-child(1) {
  top: 8px;
  transform: rotate(135deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  left: -60px;
}

.nav-toggle.active span:nth-child(3) {
  top: 8px;
  transform: rotate(-135deg);
}

/* ===== HERO SECTION ===== */
.hero {
  height: 100vh;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.8) 100%), url('https://images.unsplash.com/photo-1484417894907-623942c8ee29?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1064&q=80') no-repeat center/cover;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.hero-text {
  flex: 1;
}

.hero-text h1 {
  font-size: 3.5rem;
  margin-bottom: 10px;
  font-weight: 700;
}

.hero-text h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.hero-text p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: var(--gray-color);
}

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

.cta-buttons .btn:first-child {
  margin-right: 15px;
}

.social-icons {
  display: flex;
  gap: 15px;
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  width: 40px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  transition: var(--transition);
}

.social-icons a:hover {
  transform: translateY(-5px);
  background-color: var(--secondary-color);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

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

.profile-circle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  border: 5px solid var(--primary-color);
  background: url('../images/al-chris.png') no-repeat center/cover;
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

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

.scroll-down a {
  color: var(--primary-color);
  font-size: 1.5rem;
  transition: var(--transition);
}

.scroll-down a:hover {
  color: var(--secondary-color);
}

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

/* ===== ABOUT SECTION ===== */
.about {
  padding: var(--section-padding);
  background-color: white;
}

.about-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

.about-text {
  flex: 1;
}

.about-text p {
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: var(--gray-color);
}

.personal-info {
  margin: 40px 0;
}

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

.info-title {
  min-width: 120px;
  font-weight: 600;
}

.info-value {
  color: var(--gray-color);
}

/* ===== SKILLS SECTION ===== */
.skills {
  padding: var(--section-padding);
  background-color: #f9fafb;
}

.skill-category {
  margin-bottom: 50px;
}

.skill-category h3 {
  font-size: 1.8rem;
  margin-bottom: 30px;
  text-align: center;
  color: var(--secondary-color);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 30px;
}

.skill-item {
  background-color: white;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  text-align: center;
}

.skill-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.skill-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.skill-item h4 {
  margin-bottom: 15px;
  font-weight: 600;
}

.skill-progress {
  height: 8px;
  background-color: #e2e8f0;
  border-radius: 5px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  border-radius: 5px;
}

/* ===== PROJECTS SECTION ===== */
.projects {
  padding: var(--section-padding);
  background-color: white;
}

.project-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 30px;
  gap: 10px;
}

.filter-btn {
  background-color: transparent;
  border: none;
  padding: 8px 20px;
  cursor: pointer;
  font-weight: 500;
  border-radius: 5px;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary-color);
  color: white;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
  position: relative;
  min-height: 200px;
}

.project-card {
  border-radius: 10px;
  overflow: hidden;
  background-color: white;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.project-image {
  height: 200px;
  position: relative;
  overflow: hidden;
}

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

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

.project-category {
  position: absolute;
  top: 20px;
  right: 20px;
  background-color: var(--primary-color);
  color: white;
  padding: 5px 15px;
  border-radius: 50px;
  font-size: 0.8rem;
}

.project-info {
  padding: 20px;
}

.project-info h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.project-info p {
  color: var(--gray-color);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.project-links {
  display: flex;
  gap: 15px;
}

.project-links a {
  display: flex;
  align-items: center;
  color: var(--primary-color);
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
}

.project-links a i {
  margin-right: 5px;
}

.project-links a:hover {
  color: var(--secondary-color);
}

.loading-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(99, 102, 241, 0.3);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== CONTACT SECTION ===== */
.contact {
  padding: var(--section-padding);
  background-color: #f9fafb;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 50px;
}

.contact-item {
  display: flex;
  margin-bottom: 40px;
  align-items: flex-start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(99, 102, 241, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  margin-right: 20px;
  color: var(--primary-color);
  font-size: 1.2rem;
}

.contact-details h3 {
  font-size: 1.2rem;
  margin-bottom: 5px;
}

.contact-details p {
  color: var(--gray-color);
}

.contact-details a {
  color: var(--primary-color);
  transition: var(--transition);
}

.contact-details a:hover {
  color: var(--secondary-color);
}

.contact-form {
  background-color: white;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.form-group {
  margin-bottom: 20px;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px 20px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group textarea {
  height: 150px;
  resize: vertical;
}

.form-status {
  margin-top: 15px;
  padding: 10px;
  border-radius: 5px;
  text-align: center;
  display: none;
}

.form-status.success {
  background-color: #d1fae5;
  color: #047857;
  display: block;
}

.form-status.error {
  background-color: #fee2e2;
  color: #b91c1c;
  display: block;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--dark-color);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.footer-logo h3 {
  font-size: 1.8rem;
  margin-bottom: 5px;
  color: var(--primary-color);
}

.footer-logo p {
  color: #94a3b8;
}

.footer-social {
  display: flex;
  gap: 15px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  width: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transition: var(--transition);
}

.footer-social a:hover {
  background-color: var(--primary-color);
  transform: translateY(-5px);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: #94a3b8;
  margin-bottom: 10px;
}

.footer-bottom .fa-heart {
  color: #ef4444;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  height: 50px;
  width: 50px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--secondary-color);
  transform: translateY(-5px);
}

/* ===== MOBILE RESPONSIVE STYLES ===== */
@media (max-width: 992px) {
  .hero-content {
    flex-direction: column-reverse;
    text-align: center;
  }
  
  .hero-text h1 {
    font-size: 3rem;
  }
  
  .hero-text h2 {
    font-size: 1.8rem;
  }
  
  .hero-text p {
    font-size: 1.1rem;
  }
  
  .social-icons {
    justify-content: center;
  }
  
  .profile-container {
    width: 280px;
    height: 280px;
    margin-bottom: 30px;
  }
  
  .about-content {
    flex-direction: column;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 70px 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-text h1 {
    font-size: 2.5rem;
  }
  
  .hero-text h2 {
    font-size: 1.5rem;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: white;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 30px 0;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-150%);
    opacity: 0;
    transition: var(--transition);
    z-index: 999;
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
  }
  
  .nav-links li {
    margin-left: 0;
  }
  
  .skill-category h3 {
    font-size: 1.5rem;
  }
  
  .project-filters {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 576px) {
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .hero-text h2 {
    font-size: 1.3rem;
  }
  
  .cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }
  
  .cta-buttons .btn:first-child {
    margin-right: 0;
  }
  
  .profile-container {
    width: 220px;
    height: 220px;
  }
  
  .contact-form {
    padding: 20px;
  }
}