/* ================================
   CSS RESET & BASE STYLES
   ================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

/* ================================
   UTILITY CLASSES
   ================================ */

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

/* ================================
   HEADER & NAVIGATION
   ================================ */
header {
  background-color: #2c3e50;
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
}
.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: #3498db;
}
.nav-menu a.active {
  color: #3498db;
  border-bottom: 2px solid #3498db;
  padding-bottom: 5px;
}
/* ================================
   HERO SECTION
   ================================ */

.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 6rem 2rem;
  min-height: 500px;
  display: flex;
  align-items: center;
}

.hero .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.hero-content {
  flex: 1;
  min-width: 300px;
}

.hero-content h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.hero-content h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 400;
}

.hero-content p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.highlight {
  color: #ffd700;
}

.hero-image {
  flex: 1;
  min-width: 300px;
  text-align: center;
}

.hero-image img {
  width: 100%;
  max-width: 350px;
  border-radius: 50%;
  border: 5px solid white;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
/* ================================
   BUTTONS
   ================================ */
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: #3498db;
  color: white;
}

.btn-primary:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background-color: white;
  color: #667eea;
}

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

/* ================================
   SKILLS SECTION
   ================================ */

.skills {
  padding: 5rem 2rem;
  background-color: #f8f9fa;
}

.skills h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #2c3e50;
}

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

.skill-card {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.skill-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #667eea;
}

.skill-card p {
  color: #666;
  line-height: 1.8;
}

/* ================================
   CALL TO ACTION
   ================================ */

.cta {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 5rem 2rem;
  text-align: center;
}

.cta h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cta p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* ================================
   FOOTER
   ================================ */
footer {
  background-color: #2c3e50;
  color: white;
  padding: 3rem 2rem 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: 1rem;
  color: #3498db;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #ecf0f1;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: #3498db;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #bdc3c7;
}

/* ================================
   PAGE HERO (About/Contact)
   ================================ */

.page-hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4rem 2rem;
  text-align: center;
}

.page-hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.page-hero p {
  font-size: 1.2rem;
  opacity: 0.9;
}

/* ================================
   ABOUT SECTION
   ================================ */

.about-content {
  padding: 5rem 2rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: center;
}

.about-image img {
  width: 100%;
  max-width: 350px;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.about-text h2 {
  font-size: 2rem;
  color: #2c3e50;
  margin-bottom: 1.5rem;
}

.about-text p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  color: #555;
}

/* ================================
   SKILL SECTION SECTION
    ================================ */
.skills-detailed {
  padding: 5rem 2rem;
  background-color: #f8f9fa;
}

.skills-detailed h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #2c3e50;
}

.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}
.skill-category {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.skill-category h3 {
  color: #667eea;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.skills-list {
  list-style: none;
}

.skills-list li {
  padding: 0.5rem 0;
  color: #555;
  border-bottom: 1px solid #eee;
}
.skills-list li:last-child {
  border-bottom: none;
}

.skills-list li:before {
  content: "✓ ";
  color: #3498db;
  font-weight: bold;
  margin-right: 0.5rem;
}

/* ================================
   SKILL SECTION SECTION
    ================================ */

.timeline {
  padding: 5rem 2rem;
}

.timeline h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #2c3e50;
}

.timeline-items {
  max-width: 800px;
  margin: 0 auto;
}
.timeline-item {
  background: white;
  padding: 2rem;
  margin-bottom: 2rem;
  border-left: 4px solid #3498db;
  border-radius: 5px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.timeline-item:hover {
  transform: translateX(10px);
}

.timeline-item h3 {
  color: #2c3e50;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.timeline-date {
  color: #3498db;
  font-weight: 600;
  margin-bottom: 1rem;
}

.timeline-item p {
  color: #666;
  line-height: 1.8;
}
/* ================================
   CONTACT PAGE
   ================================ */
.contact-section {
  padding: 5rem 2rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-form h2,
.contact-info h2 {
  color: #2c3e50;
  margin-bottom: 2rem;
  font-size: 2rem;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #2c3e50;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 5px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3498db;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

form button {
  width: 100%;
  padding: 15px;
  font-size: 1.1rem;
}

.info-item {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 5px;
}

.info-item h3 {
  color: #2c3e50;
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
}

.info-item p,
.info-item a {
  color: #555;
  text-decoration: none;
}
.info-item a:hover {
  color: #3498db;
}

.social-links-contact {
  list-style: none;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-links-contact a {
    display: inline-block;
    padding: 8px 16px;
    background: #3498db;
    color: white;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.social-links-contact a:hover {
    background: #2980b9;
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

/* Tablet */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-image {
        order: -1; /* Move image to top */
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.2rem;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .hero {
        padding: 3rem 1rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .hero-content h3 {
        font-size: 1.2rem;
    }
    
    .page-hero h1 {
        font-size: 2rem;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
}