/* Reset e Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", sans-serif;
  line-height: 1.6;
  color: #e2e8f0;
  background-color: #0f172a;
  overflow-x: hidden;
}

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

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.nav-brand h2 {
  color: #3b82f6;
  font-weight: 600;
}

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

.nav-link {
  color: #e2e8f0;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #3b82f6;
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: #3b82f6;
  transition: width 0.3s ease;
}

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

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

.hamburger span {
  width: 25px;
  height: 3px;
  background: #e2e8f0;
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  position: relative;
}

.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="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23334155" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.1;
}

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

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.highlight {
  color: #3b82f6;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #94a3b8;
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.hero-description {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.btn {
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.btn-primary {
  background: #3b82f6;
  color: white;
}

.btn-primary:hover {
  background: #2563eb;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: #3b82f6;
  border: 2px solid #3b82f6;
}

.btn-secondary:hover {
  background: #3b82f6;
  color: white;
  transform: translateY(-2px);
}

.hero-social {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.hero-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50%;
  color: #3b82f6;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.hero-social a:hover {
  background: #3b82f6;
  color: white;
  transform: translateY(-3px);
}

/* Sections */
section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 3rem;
  color: #f1f5f9;
}

/* About Section */
.about {
  background: #1e293b;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text p {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat {
  text-align: center;
  padding: 1.5rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.stat h3 {
  font-size: 2.5rem;
  color: #3b82f6;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.stat p {
  color: #94a3b8;
  font-weight: 500;
}

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

.skill-category {
  background: #1e293b;
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid #334155;
  transition: all 0.3s ease;
  text-align: center;
}

.skill-category:hover {
  transform: translateY(-5px);
  border-color: #3b82f6;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.skill-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
}

.skill-category h3 {
  font-size: 1.5rem;
  color: #f1f5f9;
  margin-bottom: 1rem;
}

.skill-category ul {
  list-style: none;
  text-align: left;
}

.skill-category li {
  color: #cbd5e1;
  margin-bottom: 0.5rem;
  padding-left: 1rem;
  position: relative;
}

.skill-category li::before {
  content: "▸";
  color: #3b82f6;
  position: absolute;
  left: 0;
}

/* Projects Section */
.projects {
  background: #1e293b;
}

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

.project-card {
  background: #0f172a;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #334155;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: #3b82f6;
  box-shadow: 0 15px 40px rgba(59, 130, 246, 0.1);
}

.project-image {
  height: 200px;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
}

.project-content {
  padding: 1.5rem;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
}

.project-content h3 {
  font-size: 1.3rem;
  color: #f1f5f9;
  margin-bottom: 1rem;
}

.project-content p {
  color: #cbd5e1;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-tech span {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: auto;
}

.project-link {
  color: #3b82f6;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.project-link:hover {
  color: #2563eb;
}

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

.contact-info h3 {
  font-size: 1.8rem;
  color: #f1f5f9;
  margin-bottom: 1rem;
}

.contact-info p {
  color: #cbd5e1;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: #cbd5e1;
}

.contact-item i {
  color: #3b82f6;
  width: 20px;
}

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

.contact-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50%;
  color: #3b82f6;
  transition: all 0.3s ease;
}

.contact-social a:hover {
  background: #3b82f6;
  color: white;
  transform: translateY(-2px);
}

.contact-form {
  background: #1e293b;
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid #334155;
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 8px;
  color: #e2e8f0;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3b82f6;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #64748b;
}

/* Footer */
.footer {
  background: #0f172a;
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid #334155;
}

.footer p {
  color: #64748b;
}

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

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: rgba(15, 23, 42, 0.98);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 2rem 0;
  }

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

  .hero-title {
    font-size: 2.5rem;
  }

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

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

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

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

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

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

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

  .nav {
    padding: 1rem;
  }

  .container {
    padding: 0 15px;
  }

  .project-card,
  .project-content,
  .contact-form {
    padding: 1rem;
  }
  .project-image {
    height: 120px;
    font-size: 2rem;
  }
  .btn,
  .form-group input,
  .form-group textarea {
    font-size: 1rem;
    padding: 10px 12px;
  }
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}