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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #ffffff;
  overflow-x: hidden;
}

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

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }

.section-title {
  text-align: center;
  margin-bottom: 1rem;
  color: #2c3e50;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: #666;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* === 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 rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo h2 {
  color: #2c3e50;
  font-size: 1.5rem;
  font-weight: 700;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: #2c3e50;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #2c5364;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  transition: width 0.3s ease;
}

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

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

.bar {
  width: 25px;
  height: 3px;
  background-color: #2c3e50;
  margin: 3px 0;
  transition: 0.3s;
}

/* === HERO SECTION === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.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 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,1000 1000,800 1000,1000"/></svg>');
  background-size: cover;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

.hero-text h1 {
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease-out;
}

.highlight {
  background: linear-gradient(135deg, #007991 0%, #78ffd6 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  line-height: 1.7;
  opacity: 0.9;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-image {
  display: flex;
  justify-content: center;
  animation: fadeInRight 1s ease-out 0.8s both;
}

.profile-placeholder {
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

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

.scroll-down {
  color: white;
  font-size: 1.5rem;
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.scroll-down:hover {
  opacity: 1;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 12px 30px;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

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

.btn-secondary:hover {
  background: white;
  color: #2c5364;
}

.btn-small {
  padding: 8px 20px;
  font-size: 0.9rem;
}

.btn-outline {
  background: transparent;
  color: #2c5364;
  border-color: #2c5364;
}

.btn-outline:hover {
  background: #2c5364;
  color: white;
}

/* === UTILITY CLASSES === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

/* === ABOUT SECTION === */
.about {
  padding: 5rem 0;
  background-color: #f8f9fa;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.about-text h3 {
  color: #2c3e50;
  margin-bottom: 1.5rem;
  font-size: 1.4rem;
}

.about-text p {
  margin-bottom: 1.5rem;
  color: #666;
  line-height: 1.8;
}

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

.stat {
  text-align: center;
  padding: 1.5rem;
  background: white;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

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

.stat h4 {
  font-size: 2rem;
  color: #2c5364;
  margin-bottom: 0.5rem;
}

.stat p {
  color: #666;
  font-weight: 500;
}

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

.about-img-placeholder {
  width: 250px;
  height: 250px;
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: white;
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

/* === SKILLS SECTION === */
.skills {
  padding: 5rem 0;
  background: white;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

.skill-category {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.skill-category h3 {
  color: #2c3e50;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.skill-category i {
  color: #2c5364;
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-name {
  font-weight: 600;
  color: #2c3e50;
}

.skill-bar {
  height: 8px;
  background: #e9ecef;
  border-radius: 4px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  border-radius: 4px;
  width: 0%;
  transition: width 1.5s ease-in-out;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 500;
}

/* === PROJECTS SECTION === */
.projects {
  padding: 5rem 0;
  background: #f8f9fa;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-header {
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  color: #fff;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  border-top-left-radius: 0.75rem;
  border-top-right-radius: 0.75rem;
  overflow: hidden;
}

.project-header i {
  z-index: 0;
  position: relative;
  pointer-events: none;
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  border-top-left-radius: 0.75rem;
  border-top-right-radius: 0.75rem;
  z-index: 5;
}

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

.project-overlay .btn {
  padding: 0.5rem 1.2rem;
  border: 2px solid #fff;
  color: #fff;
  background: transparent;
  border-radius: 2rem;
  font-size: 1rem;
  transition: background 0.3s ease;
}

.project-overlay .btn:hover {
  background: #fff;
  color: #333;
}

.project-content {
  padding: 1.5rem;
}

.project-content h3 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.project-content p {
  color: #666;
  line-height: 1.6;
  margin-bottom: 1rem;
}

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

.tech-tag {
  background: #e9ecef;
  color: #495057;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 500;
}

.projects-cta {
  text-align: center;
  margin-top: 3rem;
}

/* === CONTACT SECTION === */
.contact {
  padding: 5rem 0;
  background: white;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
}

.contact-info h3 {
  color: #2c3e50;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item i {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-item h4 {
  color: #2c3e50;
  margin-bottom: 0.25rem;
}

.contact-item p {
  color: #666;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.social-link {
  width: 50px;
  height: 50px;
  background: #f8f9fa;
  color: #2c5364;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 1.2rem;
}

.social-link:hover {
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  color: white;
  transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 15px;
}

.form-group {
  position: relative;
  margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid #e9ecef;
  border-radius: 10px;
  background: white;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #2c5364;
}

.form-group label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  color: #999;
  font-size: 1rem;
  transition: all 0.3s ease;
  pointer-events: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: -0.5rem;
  left: 0.5rem;
  font-size: 0.8rem;
  color: #2c5364;
  background: white;
  padding: 0 0.5rem;
}

/* === FOOTER === */
.footer {
  background: #2c3e50;
  color: white;
  padding: 2rem 0;
}

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

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: white;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #2c5364;
}

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

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

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

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
  }

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

  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }

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

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

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

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

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

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

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

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

  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .nav-container {
    padding: 1rem 15px;
  }

  h1 { font-size: 2rem; }

  .hero-buttons {
    gap: 0.5rem;
  }

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

  .profile-placeholder {
    width: 200px;
    height: 200px;
    font-size: 4rem;
  }

  .about-img-placeholder {
    width: 200px;
    height: 200px;
    font-size: 3rem;
  }
}

/* === CUSTOM SCROLLBAR === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #0f2027 0%, #2c5364 100%);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

.profile-image {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  object-fit: cover;
}