:root {
  --color-bg: #f5f8fc;
  --color-surface: #ffffff;
  --color-surface-hover: #fcfdfe;
  --color-text-primary: #1e293b;
  --color-text-secondary: #475569;
  --color-accent: #6366f1;
  --color-accent-hover: #4f46e5;
  --color-accent-light: #e0e7ff;
  --color-border: #e2e8f0;
  --color-error: #ef4444;
  --color-error-bg: #fef2f2;
  
  --shadow-micro: 0 2px 8px -2px rgba(15, 23, 42, 0.05);
  --shadow-soft: 0 12px 32px -4px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 20px 40px -8px rgba(15, 23, 42, 0.1);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-40: 40px;
  --spacing-64: 64px;

  --header-height-desk: 64px;
  --header-height-mob: 52px;
  
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .brand-name {
  margin-top: 0;
  margin-bottom: var(--spacing-16);
  color: var(--color-text-primary);
  line-height: 1.2;
  font-weight: 700;
  overflow-wrap: anywhere;
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-16);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-24);
}

@media (max-width: 399px) {
  .container {
    padding: 0 var(--spacing-16);
  }
}

/* Header */
.site-header {
  height: var(--header-height-desk);
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
  text-decoration: none;
  color: var(--color-text-primary);
  min-width: 0;
}

.brand-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  fill: var(--color-accent);
}

.brand-name {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-24);
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  overflow-wrap: anywhere;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px var(--spacing-24);
  background-color: var(--color-accent);
  color: var(--color-surface);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  text-align: center;
}

.btn:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-surface);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: #c7d2fe;
  color: var(--color-accent-hover);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--spacing-8);
  cursor: pointer;
  color: var(--color-text-primary);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

@media (max-width: 767px) {
  .site-header {
    height: var(--header-height-mob);
  }
  
  .brand-name {
    font-size: 1.1rem;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height-mob);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    padding: var(--spacing-24);
    box-shadow: var(--shadow-soft);
    border-bottom: 1px solid var(--color-border);
    z-index: 50;
  }
  
  .main-nav.is-visible {
    display: flex;
  }
  
  .site-header .btn {
    display: none;
  }
}

/* Hero Section */
.hero {
  padding: var(--spacing-64) 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-24);
}

.hero p {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto var(--spacing-40);
}

/* Horizontal Split Cards */
.card-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-40);
  margin-bottom: var(--spacing-64);
}

.card {
  display: flex;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  min-width: 0;
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.card-media {
  flex: 0 0 45%;
  min-width: 0;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}

.card-content {
  flex: 1;
  padding: var(--spacing-40);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.card-tags {
  display: flex;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-16);
  flex-wrap: wrap;
}

.tag {
  background-color: var(--color-accent-light);
  color: var(--color-accent-hover);
  padding: 4px var(--spacing-12);
  border-radius: 99px;
  font-size: 0.875rem;
  font-weight: 600;
}

.card-content h2 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-16);
}

.card-content p {
  margin-bottom: var(--spacing-24);
  flex-grow: 1;
}

.card-cta {
  align-self: flex-start;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.card-cta svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform 0.2s ease;
}

.card:hover .card-cta svg {
  transform: translateX(4px);
}

@media (max-width: 767px) {
  .card {
    flex-direction: column;
  }
  .card-media {
    flex: auto;
  }
  .card-media img {
    height: 240px;
  }
  .card-content {
    padding: var(--spacing-24);
  }
}

/* Page Layouts */
.page-header {
  padding: var(--spacing-64) 0 var(--spacing-40);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-40);
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-16);
}

.content-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-64);
  margin-bottom: var(--spacing-64);
}

.article-content {
  background-color: var(--color-surface);
  padding: var(--spacing-40);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-micro);
  min-width: 0;
}

.article-content h2 {
  margin-top: var(--spacing-40);
  font-size: 1.75rem;
}

.article-content h3 {
  margin-top: var(--spacing-24);
  font-size: 1.25rem;
}

.article-content ul, .article-content ol {
  margin-bottom: var(--spacing-24);
  padding-left: var(--spacing-24);
  color: var(--color-text-secondary);
}

.article-content li {
  margin-bottom: var(--spacing-8);
}

.article-content img {
  border-radius: var(--radius-md);
  margin: var(--spacing-24) 0;
}

/* Data Table (for Cookie Policy and specs) */
.table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--spacing-24);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-micro);
  background: var(--color-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 600px;
}

th, td {
  padding: var(--spacing-16);
  border-bottom: 1px solid var(--color-border);
}

th {
  background-color: var(--color-bg);
  font-weight: 600;
  color: var(--color-text-primary);
}

/* Data Grid (Stats) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-24);
  margin: var(--spacing-40) 0;
}

.stat-item {
  background-color: var(--color-bg);
  padding: var(--spacing-24);
  border-radius: var(--radius-md);
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: var(--spacing-12);
}

.stat-label {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Support Section */
.support-section {
  background-color: var(--color-surface);
  padding: var(--spacing-64) 0;
  margin-top: var(--spacing-64);
  border-top: 1px solid var(--color-border);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-40);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-24);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-8);
}

.form-control {
  width: 100%;
  padding: 12px var(--spacing-16);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-surface);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

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

.form-error {
  display: none;
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: var(--spacing-4);
}

.form-control.is-invalid {
  border-color: var(--color-error);
  background-color: var(--color-error-bg);
}

.form-control.is-invalid + .form-error {
  display: block;
}

.form-success-msg {
  display: none;
  background-color: #dcfce7;
  color: #166534;
  padding: var(--spacing-16);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-24);
  font-weight: 600;
}

.form-success-msg.is-visible {
  display: block;
}

/* Map Block */
.map-block {
  background: linear-gradient(135deg, #e2e8f0 25%, transparent 25%) -50px 0,
              linear-gradient(225deg, #e2e8f0 25%, transparent 25%) -50px 0,
              linear-gradient(315deg, #e2e8f0 25%, transparent 25%),
              linear-gradient(45deg, #e2e8f0 25%, transparent 25%);
  background-size: 100px 100px;
  background-color: #f1f5f9;
  height: 300px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset var(--shadow-micro);
  margin-top: var(--spacing-40);
  position: relative;
  overflow: hidden;
}

.map-marker {
  background-color: var(--color-surface);
  padding: var(--spacing-16) var(--spacing-24);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  text-align: center;
  font-weight: 600;
  color: var(--color-accent);
}

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  padding: var(--spacing-64) 0 var(--spacing-40);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-40);
  margin-bottom: var(--spacing-40);
}

.footer-col h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-16);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: var(--spacing-8);
}

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

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-24);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.footer-bottom p {
  margin-bottom: var(--spacing-4);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: var(--spacing-24);
  left: var(--spacing-24);
  right: var(--spacing-24);
  max-width: 800px;
  margin: 0 auto;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--spacing-24);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--color-border);
  display: none;
  z-index: 1000;
  flex-direction: column;
  gap: var(--spacing-16);
}

.cookie-banner.is-visible {
  display: flex;
}

.cookie-banner p {
  margin: 0;
  font-size: 0.9375rem;
}

.cookie-actions {
  display: flex;
  gap: var(--spacing-12);
  flex-wrap: wrap;
}

@media (max-width: 767px) {
  .cookie-banner {
    bottom: var(--spacing-12);
    left: var(--spacing-12);
    right: var(--spacing-12);
    padding: var(--spacing-16);
  }
  .cookie-actions {
    flex-direction: column;
  }
  .cookie-actions .btn {
    width: 100%;
  }
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}