@import url('https://fonts.googleapis.com/css2?family=Prompt:wght@300;400;500;600&display=swap');

:root {
  /* Primary Colors - Blue Theme */
  --primary-color: #2563eb;
  --primary-light: #60a5fa;
  --primary-dark: #1d4ed8;
  --primary-gradient: linear-gradient(135deg, #2563eb, #1d4ed8);
  
  /* Secondary Colors */
  --secondary-color: #0ea5e9;
  --accent-color: #38bdf8;
  
  /* Text Colors */
  --text-color: #1e293b;
  --text-light: #64748b;
  --text-white: #ffffff;
  
  /* Background Colors */
  --background-light: #f1f5f9;
  --background-white: #ffffff;
  --background-gradient: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  --hero-gradient: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --shadow-hover: 0 15px 30px rgba(37, 99, 235, 0.15);
  
  /* Other Variables */
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --transition: all 0.3s ease;
  --container-max-width: 1400px;
  --container-narrow: 1000px;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
}

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

body {
  font-family: 'Prompt', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #fff;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Navigation */
.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  transition: var(--transition);
}

.nav-logo:hover {
  color: var(--primary-dark);
  transform: translateY(-1px);
}

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

.nav-link {
  color: var(--text-color);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary-color);
  background: rgba(37, 99, 235, 0.1);
  transform: translateY(-1px);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-color);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 8rem 0 4rem;
  background: var(--background-gradient);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--hero-gradient);
  z-index: 1;
}

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

.hero h1 {
  font-size: 3rem;
  color: var(--text-color);
  margin-bottom: 1.5rem;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

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

.stat-item {
  text-align: center;
  padding: 2rem;
  background: var(--background-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(37, 99, 235, 0.1);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.stat-item h3 {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.stat-item p {
  font-size: 1.125rem;
  color: var(--text-light);
}

/* Services Section */
.section {
  padding: var(--space-xxl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.service-card {
  padding: 2rem;
  background: var(--background-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(37, 99, 235, 0.1);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

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

.service-card ul {
  list-style: none;
  margin-bottom: 2rem;
}

.service-card ul li {
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-color);
}

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

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

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

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

/* Social Buttons */
.social-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  margin: 0.5rem;
  transition: var(--transition);
}

.btn-line {
  background-color: #00B900;
  color: white;
}

.btn-facebook {
  background-color: #1877F2;
  color: white;
}

.btn-tiktok {
  background-color: #000000;
  color: white;
}

.social-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.social-btn i {
  margin-right: 0.5rem;
  font-size: 1.25rem;
}

/* Footer */
footer {
  background: var(--background-light);
  padding: 4rem 0 2rem;
}

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

.footer-section h3 {
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.footer-contact-list {
  list-style: none;
}

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-contact-list i {
  color: var(--primary-color);
}

.footer-social {
  margin-top: var(--space-lg);
}

.footer-social a {
  margin-right: var(--space-md);
  font-size: 1.5rem;
  color: var(--text-light);
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  margin-top: var(--space-xl);
  border-top: 1px solid rgba(0,0,0,0.1);
}

/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--primary-color);
  color: white;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  border: none;
  z-index: 999;
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
}

@media (max-width: 992px) {
  .container {
    max-width: 720px;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    max-width: 540px;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: 1rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    flex-direction: column;
    gap: 0.5rem;
  }

  .nav-menu.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 6rem 0 3rem;
  }

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

  .hero-description {
    font-size: 1.125rem;
  }

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

  .stat-item {
    padding: 1.5rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-contact-list li {
    justify-content: center;
  }

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

@media (max-width: 576px) {
  .container {
    padding: 0 1rem;
  }

  .section {
    padding: var(--space-xl) 0;
  }

  .service-card {
    padding: 1.5rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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