@import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;600;700&family=Merriweather:wght@300;400;700&display=swap');

:root {
  --color-primary: #E48525;
  --color-secondary: #20CF78;
  --color-accent: #9E57E5;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8F9FA;
  --color-text: #212529;
  --color-text-muted: #6C757D;

  --font-primary: 'Source Sans Pro', sans-serif;
  --font-secondary: 'Merriweather', serif;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;

  --type-xs: 0.75rem;
  --type-sm: 0.875rem;
  --type-base: 1rem;
  --type-lg: 1.125rem;
  --type-xl: 1.25rem;
  --type-xxl: 1.5rem;
  --type-hero: 2rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  --container-max: 1400px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--type-base);
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

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

h1 {
  font-size: var(--type-hero);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--type-xxl);
}

h3 {
  font-size: var(--type-xl);
}

h4 {
  font-size: var(--type-lg);
}

p {
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

.navbar {
  position: fixed;
  top: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  padding: var(--spacing-md) var(--spacing-xl);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  max-width: 1200px;
  width: calc(100% - var(--spacing-xxl));
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.97);
  padding: var(--spacing-sm) var(--spacing-lg);
  box-shadow: var(--shadow-lg);
}

.navbar .logo {
  font-family: var(--font-secondary);
  font-size: var(--type-xl);
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  transition: transform var(--transition-fast);
}

.navbar .logo:hover {
  transform: scale(1.05);
  color: var(--color-primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
  margin-left: auto;
}

.nav-link {
  font-family: var(--font-primary);
  font-size: var(--type-base);
  font-weight: 600;
  color: var(--color-text);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.nav-link.active {
  background: var(--color-primary);
  color: white;
}

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

.mobile-menu-toggle:hover {
  background: var(--color-bg-alt);
}

main {
  padding-top: 80px;
}

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

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

.section-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, rgba(228, 133, 37, 0.85) 100%);
  color: white;
}

.section-primary h1,
.section-primary h2,
.section-primary h3 {
  color: white;
}

.section-primary p {
  color: rgba(255, 255, 255, 0.95);
}

.hero-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-xxl);
  padding: calc(var(--spacing-xxl) * 2) 0;
  min-height: 600px;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-title {
  font-size: calc(var(--type-hero) * 1.5);
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero-description {
  font-size: var(--type-lg);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
  color: var(--color-text-muted);
}

.hero-image {
  flex: 1;
  position: relative;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.split-content {
  padding: var(--spacing-lg);
}

.split-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xxl);
}

.section-title {
  font-size: calc(var(--type-xxl) * 1.2);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--type-lg);
  color: var(--color-text-muted);
  font-family: var(--font-primary);
  font-weight: 400;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.card {
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 0;
}

.card-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: var(--type-xl);
  margin-bottom: var(--spacing-sm);
}

.card-description {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.card-link {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.modern-btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-primary);
  color: white;
  font-family: var(--font-primary);
  font-size: var(--type-base);
  font-weight: 600;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.modern-btn:hover {
  background: var(--color-secondary);
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
  color: white;
}

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

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

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

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

.modern-btn-large {
  padding: var(--spacing-lg) calc(var(--spacing-xl) * 1.5);
  font-size: var(--type-lg);
}

.dynamic-cta {
  text-align: center;
  padding: calc(var(--spacing-xxl) * 2) var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-secondary) 0%, rgba(32, 207, 120, 0.85) 100%);
  color: white;
  border-radius: var(--radius-lg);
  margin: var(--spacing-xxl) 0;
}

.dynamic-cta h2 {
  color: white;
  font-size: calc(var(--type-xxl) * 1.3);
  margin-bottom: var(--spacing-lg);
}

.dynamic-cta p {
  font-size: var(--type-lg);
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.innovative-form {
  max-width: 600px;
  margin: 0 auto;
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-size: var(--type-base);
  transition: border-color var(--transition-fast);
}

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

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

.tech-accordion {
  max-width: 900px;
  margin: 0 auto;
}

.tech-accordion-item {
  background: white;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.tech-accordion-header {
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: white;
  border: none;
  text-align: left;
  font-family: var(--font-secondary);
  font-size: var(--type-lg);
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.tech-accordion-header:hover {
  background: var(--color-bg-alt);
}

.tech-accordion-header.active {
  background: var(--color-primary);
  color: white;
}

.tech-accordion-icon {
  font-size: var(--type-xl);
  transition: transform var(--transition-base);
}

.tech-accordion-header.active .tech-accordion-icon {
  transform: rotate(180deg);
}

.tech-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.tech-accordion-content.active {
  max-height: 1000px;
}

.tech-accordion-body {
  padding: var(--spacing-lg) var(--spacing-xl);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.dynamic-testimonial-slider {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.dynamic-testimonial {
  background: white;
  padding: var(--spacing-xxl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  display: none;
}

.dynamic-testimonial.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dynamic-testimonial-text {
  font-size: var(--type-lg);
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.dynamic-testimonial-author {
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.dynamic-testimonial-role {
  color: var(--color-text-muted);
  font-size: var(--type-sm);
}

.dynamic-testimonial-nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.dynamic-testimonial-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dynamic-testimonial-dot.active {
  background: var(--color-primary);
  transform: scale(1.3);
}

.modern-footer {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  text-align: center;
}

.modern-footer .footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.modern-footer .footer-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.modern-footer .footer-links a {
  color: var(--color-text-muted);
  font-size: var(--type-sm);
  transition: color var(--transition-fast);
}

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

.modern-footer p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--type-sm);
}

.tech-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.tech-feature {
  padding: var(--spacing-lg);
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition-fast);
}

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

.tech-feature-icon {
  font-size: calc(var(--type-hero) * 1.5);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.tech-feature-title {
  font-size: var(--type-lg);
  margin-bottom: var(--spacing-sm);
}

.tech-feature-description {
  color: var(--color-text-muted);
  font-size: var(--type-sm);
}

@media screen and (max-width: 1024px) {
  .navbar {
    padding: var(--spacing-md) var(--spacing-lg);
    width: calc(100% - var(--spacing-lg));
  }

  .hero-section {
    padding: var(--spacing-xxl) 0;
    min-height: auto;
  }

  .split-section {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media screen and (max-width: 768px) {
  :root {
    --type-hero: 1.75rem;
    --type-xxl: 1.35rem;
  }

  .navbar {
    top: 0;
    left: 0;
    right: 0;
    transform: none;
    border-radius: 0;
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .mobile-menu-toggle {
    display: block;
    margin-left: auto;
  }

  .main-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(33, 37, 41, 0.98);
    backdrop-filter: blur(8px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-base);
  }

  body.menu-open .main-nav {
    display: flex;
    opacity: 1;
  }

  .nav-link {
    color: white;
    font-size: var(--type-xl);
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-primary);
  }

  .hero-section {
    flex-direction: column-reverse;
    text-align: center;
    padding: var(--spacing-xl) 0;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-title {
    font-size: calc(var(--type-hero) * 1.2);
  }

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

  .dynamic-cta {
    padding: var(--spacing-xxl) var(--spacing-lg);
    margin: var(--spacing-xl) 0;
  }

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

  .tech-feature-grid {
    grid-template-columns: 1fr;
  }

  .modern-footer .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .modern-footer .footer-links {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
  }
}

@media screen and (max-width: 480px) {
  :root {
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --spacing-xxl: 32px;
  }

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

  .hero-title {
    font-size: var(--type-hero);
  }

  .innovative-form {
    padding: var(--spacing-lg);
  }

  .modern-btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--type-base);
  }
}

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

@media screen and (max-width: 768px) {
  .grid-span-2 {
    grid-column: span 1;
  }
}