/* ===================================
   CSS Reset & Base Styles
   =================================== */

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

:root {
  /* Color Palette - Clean blues and greens */
  --primary-color: #0077be;
  --primary-dark: #005a8f;
  --secondary-color: #00a896;
  --accent-color: #06d6a0;
  --text-dark: #1a1a2e;
  --text-medium: #4a5568;
  --text-light: #718096;
  --bg-light: #f7fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --success-color: #38a169;

  /* Typography */
  --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Helvetica Neue', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* Container */
  --container-max: 1200px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-system);
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--bg-white);
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
  color: var(--text-dark);
}

h2 {
  font-size: 2rem;
  color: var(--text-dark);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  color: var(--text-dark);
}

h4 {
  font-size: 1.125rem;
  color: var(--text-dark);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-medium);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--primary-dark);
}

/* ===================================
   Layout Components
   =================================== */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-intro {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-medium);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

/* ===================================
   Buttons
   =================================== */

.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: 6px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--bg-white);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--bg-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 119, 190, 0.3);
}

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--bg-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 119, 190, 0.2);
}

.btn-large {
  padding: 1.125rem 2.25rem;
  font-size: 1.125rem;
}

/* ===================================
   Header
   =================================== */

.header {
  background-color: var(--bg-white);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  font-size: 0;
}

.logo-image {
  height: 48px;
  max-height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

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

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

.nav-phone {
  background-color: var(--primary-color);
  color: var(--bg-white);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
}

.nav-phone:hover {
  background-color: var(--primary-dark);
  color: var(--bg-white);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
  background: linear-gradient(135deg, #0077be 0%, #00a896 100%);
  color: var(--bg-white);
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  color: var(--bg-white);
  font-size: 2.75rem;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================================
   Services Section
   =================================== */

.services {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.service-card {
  background-color: var(--bg-white);
  padding: var(--spacing-lg);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.service-card.featured {
  border: 2px solid var(--primary-color);
}

.service-badge {
  position: absolute;
  top: -12px;
  right: var(--spacing-md);
  background-color: var(--accent-color);
  color: var(--bg-white);
  padding: 0.375rem 0.875rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

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

.service-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-dark);
}

.service-card p {
  margin-bottom: var(--spacing-md);
}

.service-features {
  list-style: none;
  padding: 0;
}

.service-features li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-medium);
}

.service-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: 700;
}

/* ===================================
   How It Works Section
   =================================== */

.how-it-works {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.step {
  text-align: center;
  padding: var(--spacing-lg);
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--bg-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-md);
}

.step h3 {
  margin-bottom: var(--spacing-sm);
}

.step p {
  color: var(--text-medium);
}

/* ===================================
   Why Choose Us Section
   =================================== */

.why-us {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.benefit {
  background-color: var(--bg-white);
  padding: var(--spacing-lg);
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.benefit:hover {
  transform: translateY(-4px);
}

.benefit-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.benefit h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.benefit p {
  color: var(--text-medium);
}

/* ===================================
   CTA Section
   =================================== */

.cta {
  padding: var(--spacing-xxl) 0;
  background: linear-gradient(135deg, #00a896 0%, #06d6a0 100%);
  color: var(--bg-white);
  text-align: center;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta h2 {
  color: var(--bg-white);
  font-size: 2.25rem;
  margin-bottom: var(--spacing-md);
}

.cta p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================================
   Footer
   =================================== */

.footer {
  background-color: var(--text-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  color: var(--bg-white);
  margin-bottom: var(--spacing-sm);
  font-size: 1rem;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

/* ===================================
   Responsive Design - Mobile First
   =================================== */

/* Small devices (phones, less than 640px) */
@media (max-width: 639px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

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

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

  .nav {
    display: none;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

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

  .services-grid,
  .steps-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }
}

/* Medium devices (tablets, 640px to 1023px) */
@media (min-width: 640px) and (max-width: 1023px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-card:nth-child(3) {
    grid-column: 1 / -1;
    max-width: 600px;
    margin: 0 auto;
  }
}

/* Navigation responsive */
@media (max-width: 768px) {
  .nav a:not(.nav-phone) {
    display: none;
  }
}