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

:root {
  /* Color System */
  --primary: #2C3E50;
  --primary-light: #34495E;
  --secondary: #ECF0F1;
  --accent: #D4AF37;
  --accent-hover: #C09F2F;
  --success: #27AE60;
  --warning: #F39C12;
  --error: #E74C3C;
  
  /* Neutral Colors */
  --white: #FFFFFF;
  --gray-50: #F8F9FA;
  --gray-100: #F1F3F5;
  --gray-200: #E9ECEF;
  --gray-300: #DEE2E6;
  --gray-400: #CED4DA;
  --gray-500: #ADB5BD;
  --gray-600: #6C757D;
  --gray-700: #495057;
  --gray-800: #343A40;
  --gray-900: #212529;
  
  /* Typography */
  --font-primary: 'Inter', system-ui, sans-serif;
  --font-heading: 'Playfair Display', serif;
  
  /* Spacing System (8px base) */
  --space-1: 0.5rem; /* 8px */
  --space-2: 1rem;   /* 16px */
  --space-3: 1.5rem; /* 24px */
  --space-4: 2rem;   /* 32px */
  --space-5: 2.5rem; /* 40px */
  --space-6: 3rem;   /* 48px */
  --space-8: 4rem;   /* 64px */
  --space-10: 5rem;  /* 80px */
  --space-12: 6rem;  /* 96px */
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--space-3);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-6);
}

.nav-link {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--accent);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  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-color: var(--primary);
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-10) var(--space-4);
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
  z-index: 2;
}

.hero-text {
  animation: fadeInUp 1s ease-out;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: var(--space-6);
  line-height: 1.5;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  animation: fadeInRight 1s ease-out 0.3s both;
}

.hero-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
  min-width: 160px;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

/* About Section */
.about {
  padding: var(--space-12) 0;
  background-color: var(--white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
  margin-top: var(--space-8);
}

.about-text h3 {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.about-text p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--gray-600);
  margin-bottom: var(--space-4);
}

.about-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
  font-weight: 500;
}

/* Services Section */
.services {
  padding: var(--space-12) 0;
  background-color: var(--gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-6);
}

.service-card {
  background-color: var(--white);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  text-align: center;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: var(--space-3);
}

.service-card p {
  color: var(--gray-600);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

.service-card ul {
  list-style: none;
  text-align: left;
}

.service-card li {
  padding: var(--space-1) 0;
  color: var(--gray-600);
  position: relative;
  padding-left: var(--space-4);
}

.service-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* Portfolio Section */
.portfolio {
  padding: var(--space-12) 0;
  background-color: var(--white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-6);
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  height: 300px;
}

.portfolio-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: var(--white);
  padding: var(--space-6) var(--space-4) var(--space-4);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

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

.portfolio-overlay h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: var(--space-1);
}

.portfolio-overlay p {
  font-size: 0.875rem;
  opacity: 0.9;
}

/* Testimonials Section */
.testimonials {
  padding: var(--space-12) 0;
  background-color: var(--gray-50);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-6);
}

.testimonial-card {
  background-color: var(--white);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.testimonial-content p {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--gray-700);
  font-style: italic;
  margin-bottom: var(--space-4);
  position: relative;
}

.testimonial-content p::before {
  content: '"';
  font-size: 4rem;
  color: var(--accent);
  position: absolute;
  top: -20px;
  left: -10px;
  font-family: var(--font-heading);
}

.testimonial-author h4 {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.testimonial-author span {
  color: var(--gray-500);
  font-size: 0.875rem;
}

/* Contact Section */
.contact {
  padding: var(--space-12) 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.contact-info h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
}

.contact-info p {
  font-size: 1.125rem;
  margin-bottom: var(--space-6);
  opacity: 0.9;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.contact-icon {
  font-size: 1.5rem;
  width: 50px;
  height: 50px;
  background-color: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-item h4 {
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.contact-item p {
  opacity: 0.8;
  margin: 0;
}

/* Form */
.form {
  background-color: var(--white);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: var(--space-3);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form textarea {
  resize: vertical;
  min-height: 100px;
}

.form .btn {
  width: 100%;
  margin-top: var(--space-4);
}

/* Footer */
.footer {
  background-color: var(--gray-900);
  color: var(--white);
  padding: var(--space-10) 0 var(--space-6);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.footer-section h3,
.footer-section h4 {
  font-family: var(--font-heading);
  margin-bottom: var(--space-4);
  color: var(--white);
}

.footer-section h3 {
  font-size: 1.5rem;
  letter-spacing: 2px;
}

.footer-section p {
  color: var(--gray-400);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

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

.footer-section li {
  margin-bottom: var(--space-2);
}

.footer-section a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--accent);
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--gray-800);
  border-radius: 50%;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background-color: var(--accent);
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--gray-700);
  color: var(--gray-400);
}

/* 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);
  }
}

/* Scroll Animations */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.scroll-animate.animate {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content,
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: center;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .stats {
    justify-content: center;
  }
  
  .services-grid,
  .portfolio-grid,
  .testimonials-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--white);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-lg);
    padding: var(--space-4) 0;
  }

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

  .hamburger {
    display: flex;
  }
  
  .hero {
    padding: var(--space-8) var(--space-4);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .stats {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .services-grid,
  .portfolio-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-2);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .btn {
    width: 100%;
  }
  
  .service-card,
  .testimonial-card {
    padding: var(--space-4);
  }
}

/* Performance Optimizations */
.hero-image img,
.about-image img,
.portfolio-item img {
  will-change: transform;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Focus styles for better accessibility */
.nav-link:focus,
.btn:focus,
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}