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

html {
  scroll-behavior: smooth;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-bottom: 1rem;
  font-weight: 600;
}

h1 {
  font-size: 3rem;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
}

h3 {
  font-size: 1.8rem;
}

p {
  margin-bottom: 1rem;
}

/* Header */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: white;
  z-index: 1000;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
}

.logo h1 {
  color: #2c3e50;
  font-size: 1.8rem;
}

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

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

nav a:hover,
nav a.active {
  color: #3498db;
}

nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background: #3498db;
  transition: width 0.3s ease;
}

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #2c3e50;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 120px 0 80px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(45deg, #fff, #f0f0f0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn.primary {
  background: linear-gradient(45deg, #3498db, #2980b9);
  color: white;
  box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

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

.btn.secondary:hover {
  background: white;
  color: #3498db;
}

.hero-image img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* Services Section */
.services {
  padding: 100px 0;
  background: #f8f9fa;
}

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

.service-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  text-align: center;
}

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

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(45deg, #3498db, #2980b9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
}

/* Portfolio Section */
.portfolio {
  padding: 100px 0;
  background: white;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.portfolio-item {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.portfolio-item:hover {
  transform: scale(1.05);
}

.portfolio-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: 2rem 1.5rem 1.5rem;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
  transform: translateY(0);
}

/* About Section */
.about {
  padding: 100px 0;
  background: #f8f9fa;
}

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

.about-text h2 {
  text-align: left;
  margin-bottom: 2rem;
}

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

.stat h3 {
  font-size: 2.5rem;
  color: #3498db;
  margin-bottom: 0.5rem;
}

.about-image img {
  width: 100%;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Testimonials Section */
.testimonials {
  padding: 100px 0;
  background: white;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

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

.testimonial::before {
  content: '"';
  font-size: 4rem;
  color: #3498db;
  position: absolute;
  top: -10px;
  left: 20px;
  opacity: 0.3;
}

.testimonial p {
  font-style: italic;
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.client {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.client img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
}

.client h4 {
  margin-bottom: 0.25rem;
}

.client span {
  color: #666;
  font-size: 0.9rem;
}

/* Contact Section */
.contact {
  padding: 100px 0;
  background: #f8f9fa;
}

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

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.info-item i {
  font-size: 2rem;
  color: #3498db;
  width: 50px;
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid #e1e8ed;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

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

/* Footer */
footer {
  background: #2c3e50;
  color: white;
  padding: 50px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-logo img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.footer-links h4,
.footer-social h4 {
  margin-bottom: 1rem;
}

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

.footer-links a {
  color: #bdc3c7;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

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

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

.social-links a {
  color: #bdc3c7;
  font-size: 1.5rem;
  transition: color 0.3s ease;
}

.social-links a:hover {
  color: #3498db;
}

.footer-bottom {
  border-top: 1px solid #34495e;
  padding-top: 1rem;
  text-align: center;
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background: #3498db;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
}

.scroll-to-top.show {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  background: #2980b9;
  transform: translateY(-2px);
}

/* Animations */
.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: 1rem 0;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
  }

  nav ul.active {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

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

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

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

  .services-grid,
  .portfolio-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

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

  header .container {
    padding: 1rem 15px;
  }

  .hero {
    padding: 100px 0 50px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
}