:root {
  --color-bg: #ffffff;
  --color-text: #0a0a0a;
  --color-text-muted: #555555;
  --color-border: #e0e0e0;
  --color-accent: #0044cc;
  --color-accent-hover: #003399;
  --color-accent-text: #ffffff;
  --color-surface: #f4f4f4;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-24: 24px;
  --space-40: 40px;
  --space-64: 64px;

  --transition-speed: 0.2s;
}

@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;
  }
}

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

body, html {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6, .brand, .nav-link {
  overflow-wrap: anywhere;
  margin-top: 0;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); margin-bottom: var(--space-40); }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: var(--space-24); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: var(--space-16); }

p { margin-top: 0; margin-bottom: var(--space-24); }

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

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

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

.section {
  padding: var(--space-64) 0;
}

/* Header */
.site-header {
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: -0.05em;
}

.brand svg {
  width: 24px;
  height: 24px;
}

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

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

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

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
}

.hamburger svg {
  width: 24px;
  height: 24px;
  fill: var(--color-text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-24);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--color-text);
  background-color: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-speed) ease;
}

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

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

.btn-primary:hover {
  background-color: var(--color-text-muted);
  color: var(--color-bg);
}

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

.card {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-24);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.card-media {
  min-width: 0;
  border-right: 1px solid var(--color-border);
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}

.card-content {
  min-width: 0;
  padding: var(--space-24);
  padding-left: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-meta {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.card-title {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  margin-bottom: var(--space-12);
}

.card-excerpt {
  color: var(--color-text-muted);
  margin-bottom: var(--space-24);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin-bottom: var(--space-24);
}

.card-tag {
  font-size: 0.75rem;
  padding: var(--space-4) var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

/* Content Pages */
.article-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-40);
  margin-bottom: var(--space-40);
}

.article-content {
  max-width: 800px;
}

.article-content h2, .article-content h3 {
  margin-top: var(--space-40);
}

.article-content ul {
  padding-left: var(--space-24);
  margin-bottom: var(--space-24);
}

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

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin-bottom: var(--space-24);
  border: 1px solid var(--color-border);
}

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

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

th {
  background-color: var(--color-surface);
  font-weight: 600;
}

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

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-8);
}

.form-input, .form-textarea {
  width: 100%;
  padding: var(--space-12);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  font-family: inherit;
  font-size: 1rem;
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-input.is-invalid, .form-textarea.is-invalid {
  border-color: #cc0000;
}

.form-error {
  display: none;
  color: #cc0000;
  font-size: 0.75rem;
  margin-top: var(--space-4);
}

.form-error.is-visible {
  display: block;
}

/* Stats */
.stat-block {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-24);
}

.stat-value {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--space-12);
}

.stat-label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

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

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

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: var(--space-16);
}

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

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

.footer-col a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

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

.footer-bottom {
  margin-top: var(--space-64);
  padding-top: var(--space-24);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-24);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--color-bg);
  border-top: 1px solid var(--color-text);
  padding: var(--space-24);
  z-index: 1000;
  transform: translateY(100%);
  transition: transform var(--transition-speed) ease;
}

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

.cookie-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  max-width: 1200px;
  margin: 0 auto;
}

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

/* Responsive */
@media (max-width: 767px) {
  .site-header {
    height: 52px;
  }
  
  .main-nav {
    display: none;
    position: absolute;
    top: 52px;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--space-24);
    z-index: 100;
  }
  
  .main-nav.is-visible {
    display: flex;
  }
  
  .hamburger {
    display: block;
  }

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

  .card-media {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .card-content {
    padding: var(--space-24);
  }
}

@media (max-width: 399px) {
  :root {
    --space-64: 40px;
    --space-40: 24px;
  }
  h1 { font-size: 2rem; }
  .card-title { font-size: 1.25rem; }
  .btn { width: 100%; }
}