:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1e40af;
  --color-secondary: #10b981;
  --color-accent: #8b5cf6;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-border: #e2e8f0;
  --color-error: #ef4444;
  --color-success: #10b981;
  
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

header.scrolled {
  box-shadow: var(--shadow-md);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

.brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

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

nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

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

nav a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  cursor: pointer;
  color: var(--color-text);
}

main {
  min-height: 60vh;
}

section {
  padding: var(--spacing-4xl) 0;
}

section:nth-child(even) {
  background-color: var(--color-bg-alt);
}

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: white;
  text-align: center;
  padding: var(--spacing-4xl) 0;
}

.hero h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
  font-weight: 800;
}

.hero p {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-2xl);
  opacity: 0.95;
}

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
}

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

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

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

h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-xl);
  color: var(--color-text);
  font-weight: 700;
  text-align: center;
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

.grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--color-bg);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
}

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

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-2xl);
}

.feature-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
}

.content-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

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

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

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

input,
textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  transition: border-color 0.3s ease;
}

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

input.error,
textarea.error {
  border-color: var(--color-error);
}

.error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: none;
}

.error-message.show {
  display: block;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 4px;
}

.checkbox-group label {
  margin-bottom: 0;
  font-weight: 400;
}

footer {
  background: var(--color-text);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

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

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

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-sm);
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-xl);
  z-index: 2000;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-xl);
}

.cookie-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

.cookie-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  padding: var(--spacing-lg);
}

.cookie-modal.show {
  display: flex;
}

.cookie-modal-content {
  background: white;
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
}

.cookie-category {
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.cookie-category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.toggle {
  position: relative;
  width: 50px;
  height: 26px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-border);
  transition: 0.3s;
  border-radius: 26px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

.toggle input:checked + .toggle-slider {
  background-color: var(--color-primary);
}

.toggle input:checked + .toggle-slider:before {
  transform: translateX(24px);
}

.toggle input:disabled + .toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}

.thank-you-container {
  text-align: center;
  padding: var(--spacing-4xl) 0;
}

.thank-you-icon {
  width: 80px;
  height: 80px;
  background: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-xl);
  font-size: var(--font-size-3xl);
  color: white;
}

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

.policy-content h2 {
  text-align: left;
  margin-top: var(--spacing-2xl);
}

.policy-content h3 {
  text-align: left;
  margin-top: var(--spacing-xl);
}

.policy-content ul {
  margin-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.policy-content li {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

.disclaimer {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin: var(--spacing-2xl) 0;
}

.disclaimer p {
  margin-bottom: 0;
  font-size: var(--font-size-sm);
}

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

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  nav.active {
    max-height: 400px;
  }

  nav ul {
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .hero p {
    font-size: var(--font-size-lg);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

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

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

  .cookie-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-buttons {
    width: 100%;
    flex-direction: column;
  }

  .cookie-buttons .btn {
    width: 100%;
  }

  section {
    padding: var(--spacing-2xl) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero h1 {
    font-size: var(--font-size-2xl);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}