/* Global Styles */
:root {
  --primary-color: #4361ee;
  --secondary-color: #3a0ca3;
  --accent-color: #4cc9f0;
  --dark-color: #2b2d42;
  --light-color: #f8f9fa;
  --success-color: #4caf50;
  --error-color: #f44336;
  --grey-color: #6c757d;
  
  /* Light mode (default) */
  --bg-color: #f8f9fa;
  --text-color: #2b2d42;
  --card-bg: #ffffff;
  --border-color: #e6e6e6;
  --header-bg: #ffffff;
  --footer-bg: #2b2d42;
  --footer-text: #ffffff;
  --testimonial-bg: #f5f5f5;
}

/* Dark mode */
[data-theme="dark"] {
  --primary-color: #4cc9f0;
  --secondary-color: #4361ee;
  --bg-color: #121212;
  --text-color: #f8f9fa;
  --card-bg: #1e1e1e;
  --border-color: #333333;
  --header-bg: #1e1e1e;
  --footer-bg: #121212;
  --footer-text: #f8f9fa;
  --testimonial-bg: #1e1e1e;
}

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

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  text-decoration: none;
  color: var(--primary-color);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

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

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

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

.section-title {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--grey-color);
  text-align: center;
  margin-bottom: 3rem;
}

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

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
}

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

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

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

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

/* Mobile Controls */
.mobile-controls {
  display: flex;
  align-items: center;
}

.hamburger {
  display: none;
  cursor: pointer;
  color: var(--text-color);
  margin-left: 1rem;
  font-size: 1.2rem;
}

/* Dark Mode Toggle */
.dark-mode-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-color);
  font-size: 1.2rem;
  transition: color 0.3s ease;
}

.dark-mode-toggle:hover {
  color: var(--primary-color);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  color: white;
  margin-top: 0;
  padding-top: 80px;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
}

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

.hero-btns .btn {
  margin-right: 1rem;
}

/* Services Section */
.services {
  padding: 5rem 0;
}

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

.service-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.service-card:hover {
  transform: translateY(-10px);
}

.service-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.service-card p {
  color: var(--text-color);
}

/* Portfolio Section */
.portfolio {
  padding: 5rem 0;
  background-color: var(--bg-color);
  transition: background-color 0.3s ease;
}

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

.portfolio-item {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

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

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

.portfolio-item h3 {
  margin: 1rem 0;
  font-size: 1.2rem;
  color: #333;
  font-size: 16px;
}

.portfolio-btn {
  display: inline-block;
  margin: 0.5rem 0 1.5rem;
  padding: 0.5rem 1.5rem;
  background-color: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.portfolio-btn:hover {
  background-color: #0056b3;
}

/* About Section */
.about {
  padding: 5rem 0;
}

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

.about-text h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.about-text p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

/* Testimonials Section */
.testimonials {
  padding: 5rem 0;
  background-color: var(--testimonial-bg);
  transition: background-color 0.3s ease;
}

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

.testimonial-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s ease;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.author-img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: 1rem;
}

.author-info h4 {
  font-size: 1.1rem;
  color: var(--text-color);
}

.author-info p {
  color: var(--grey-color);
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  background-color: var(--bg-color);
  transition: background-color 0.3s ease;
}

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

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.contact-details {
  margin-bottom: 2rem;
}

.contact-details p {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  color: var(--text-color);
}

.contact-details i {
  margin-right: 1rem;
  color: var(--primary-color);
}

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

.contact-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-color);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-family: 'Poppins', sans-serif;
  background-color: var(--card-bg);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease, border 0.3s ease;
}

.contact-form textarea {
  height: 150px;
}

/* Footer */
.footer {
  background-color: var(--footer-bg);
  color: var(--footer-text);
  padding: 4rem 0 2rem;
  transition: background-color 0.3s ease;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-col h3 {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  color: var(--footer-text);
}

.footer-col p {
  color: var(--footer-text);
}

.footer-col ul li {
  margin-bottom: 0.8rem;
}

.footer-col ul li a {
  color: #ddd;
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: white;
}

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

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  margin-right: 1rem;
  color: white;
  transition: background-color 0.3s ease;
}

.social-links a:hover {
  background-color: var(--primary-color);
}

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

/* Success and error messages */
.success-message {
  padding: 10px;
  background-color: var(--success-color);
  color: white;
  border-radius: 5px;
  margin-top: 1rem;
}

.error-message {
  color: var(--error-color);
  font-size: 0.9rem;
  margin-top: 0.3rem;
}

input.error, textarea.error {
  border-color: var(--error-color);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Media Queries */
@media (max-width: 992px) {
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    right: -100%;
    flex-direction: column;
    background-color: var(--header-bg);
    width: 70%;
    height: 100vh;
    padding: 2rem;
    transition: right 0.3s ease, background-color 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-links li {
    margin: 1.5rem 0;
  }
  
  .hamburger {
    display: block;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}