:root {
  --color-primary: #2563eb;
  --color-secondary: #f8fafc;
  --color-accent: #10b981;
  --color-text: #1a1a1a;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-code-bg: #1e293b;
  --color-code-text: #e2e8f0;

  --font-family: 'Outfit', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);

  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

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

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

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

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  border: 2px solid transparent;
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn-accent:hover {
  background-color: #059669;
  transform: translateY(-2px);
}

.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 1px solid #e5e7eb;
}

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

.code-block {
  background-color: var(--color-code-bg);
  color: var(--color-code-text);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
  overflow-x: auto;
  border-left: 4px solid var(--color-primary);
}

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

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e7eb;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-weight: 500;
  color: var(--color-text-light);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.footer {
  background-color: var(--color-bg-alt);
  padding: var(--space-2xl) 0 var(--space-lg);
  border-top: 1px solid #e5e7eb;
}

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

.footer-legal {
  border-top: 1px solid #e5e7eb;
  padding-top: var(--space-lg);
  font-size: 0.875rem;
  color: var(--color-text-light);
  text-align: center;
}

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-2xl);
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: var(--space-md);
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.hero-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(37, 99, 235, 0.1), transparent);
}

.progress-container {
  width: 100%;
  background-color: #e5e7eb;
  border-radius: var(--radius-sm);
  margin: var(--space-xs) 0;
}

.progress-bar {
  height: 8px;
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  width: 0;
  transition: width 1s ease-in-out;
}

.faq-item {
  border-bottom: 1px solid #e5e7eb;
  padding: var(--space-md) 0;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  padding: var(--space-sm) 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  color: var(--color-text-light);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: var(--space-md);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #ffffff;
  box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
  padding: var(--space-md) 0;
  z-index: 2000;
  display: none;
}

.cookie-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

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

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

.form-input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-md);
  font-family: inherit;
  transition: var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 1024px) {
  .hero-split {
    gap: var(--space-xl);
  }
  .hero-content h1 {
    font-size: 2.75rem;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: var(--space-xl) var(--space-md);
    border-bottom: 1px solid #e5e7eb;
    box-shadow: var(--shadow-md);
  }

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

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

  .hero-split {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .hero-content h1 {
    font-size: 2.25rem;
  }

  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  z-index: 1001;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}