:root {
  --primary-color: #20C59C;
  --secondary-color: #227591;
  --accent-color: #5DEF81;
  --text-color: #0F172A;
  --neutral-bg: #F8FAFC;
  --success-color: #16A34A;
  --warning-color: #EA580C;
  --error-color: #DC2626;

  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;

  --font-xs: 8px;
  --font-sm: 16px;
  --font-base: 32px;
  --font-lg: 64px;
  --font-xl: 128px;
  --font-xxl: 256px;
  --font-hero: 512px;

  --max-width: 1140px;
  --gutter: 1.5rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  font-size: var(--font-sm);
  line-height: 1.5;
  color: var(--text-color);
  background: #ffffff;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--gutter);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 calc(var(--gutter) * -0.5);
}

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

[class*="col-"] {
  padding: 0 calc(var(--gutter) * 0.5);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

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

a:hover {
  color: var(--secondary-color);
}

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

.navbar {
  background: #ffffff;
  padding: var(--spacing-sm) 0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--text-color);
  cursor: pointer;
  padding: var(--spacing-xs);
}

.main-nav {
  max-height: none;
  overflow: visible;
  transition: max-height 0.3s ease;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-item {
  display: inline-block;
}

.nav-link {
  color: var(--text-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  display: block;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
}

.header-main {
  position: relative;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  padding: var(--spacing-xxl) 0;
  color: #ffffff;
  overflow: hidden;
}

.header-main::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  top: -100px;
  right: -100px;
  z-index: 1;
}

.header-main::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  bottom: -80px;
  left: -80px;
  z-index: 1;
}

.header-main .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.action-button {
  display: inline-block;
  background: var(--accent-color);
  color: var(--text-color);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 4px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.action-button:hover {
  background: #4dd86f;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.primary-cta {
  background: var(--primary-color);
  color: #ffffff;
}

.primary-cta:hover {
  background: #1ba888;
  color: #ffffff;
}

.content-section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xl);
  color: var(--secondary-color);
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xxl);
  color: #64748B;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

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

.content-grid.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-header {
  grid-column: span 3;
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--neutral-bg);
  border-radius: 8px;
}

.info-card {
  background: #ffffff;
  padding: var(--spacing-lg);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  font-size: 24px;
  color: #ffffff;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--secondary-color);
}

.card-text {
  color: #64748B;
  line-height: 1.6;
}

.detail-box {
  background: var(--neutral-bg);
  padding: var(--spacing-md);
  border-radius: 6px;
  border-left: 4px solid var(--primary-color);
}

.parallax-section {
  position: relative;
  padding: var(--spacing-xxl) 0;
  background-attachment: fixed;
  background-position: center;
  background-size: cover;
}

.parallax-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}

.parallax-content {
  position: relative;
  z-index: 2;
  color: #ffffff;
  text-align: center;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

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

.form-control {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid #CBD5E1;
  border-radius: 4px;
  font-size: var(--font-sm);
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(32, 197, 156, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  background: var(--primary-color);
  color: #ffffff;
  padding: var(--spacing-sm) var(--spacing-xl);
  border: none;
  border-radius: 4px;
  font-size: var(--font-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.3s ease;
}

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

.testimonial-card {
  background: #ffffff;
  padding: var(--spacing-lg);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  margin-bottom: var(--spacing-md);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-sm);
  color: #475569;
}

.testimonial-author {
  font-weight: 500;
  color: var(--secondary-color);
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-sm);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: 4/3;
}

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

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

.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 8px;
}

.video-container iframe,
.video-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

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

.bg-secondary {
  background: var(--secondary-color);
}

.bg-accent {
  background: var(--accent-color);
}

.bg-neutral {
  background: var(--neutral-bg);
}

.text-primary {
  color: var(--primary-color);
}

.text-secondary {
  color: var(--secondary-color);
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }

.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.pb-5 { padding-bottom: var(--spacing-xl); }

.footer {
  background: var(--secondary-color);
  color: #ffffff;
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

.footer-section h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--accent-color);
}

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

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
}

.faq-item {
  background: #ffffff;
  padding: var(--spacing-md);
  border-radius: 8px;
  margin-bottom: var(--spacing-sm);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.faq-question {
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--secondary-color);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  color: #64748B;
  line-height: 1.6;
}

.pricing-card {
  background: #ffffff;
  padding: var(--spacing-lg);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-8px);
}

.pricing-card.featured {
  border: 3px solid var(--primary-color);
}

.price-tag {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: var(--spacing-md) 0;
}

.price-features {
  list-style: none;
  margin: var(--spacing-lg) 0;
  text-align: left;
}

.price-features li {
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid #E2E8F0;
}

.blog-card {
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

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

.blog-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-content {
  padding: var(--spacing-md);
}

.blog-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  color: var(--secondary-color);
}

.blog-excerpt {
  color: #64748B;
  margin-bottom: var(--spacing-sm);
}

.blog-meta {
  font-size: 0.875rem;
  color: #94A3B8;
}

@media screen and (max-width: 992px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .grid-header {
    grid-column: span 2;
  }

  .col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }

  .col-md-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media screen and (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    max-height: 0;
    overflow: hidden;
    width: 100%;
    position: absolute;
    top: 60px;
    left: 0;
    background: #ffffff;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }

  .main-nav.active {
    max-height: 500px;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid #E2E8F0;
  }

  .nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
  }

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

  .hero-subtitle {
    font-size: 1rem;
  }

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

  .grid-header {
    grid-column: span 1;
  }

  .content-grid.grid-2 {
    grid-template-columns: 1fr;
  }

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

  .col-sm-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media screen and (max-width: 576px) {
  h1 { font-size: 1.75rem; }

  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .action-button {
    width: 100%;
    padding: var(--spacing-sm);
  }

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

  .col-xs-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}