:root {
  --bg-color: #ffffff;
  --bg-subtle: #f8f8f8;
  --bg-contrast: #0f0f0f;
  --text-main: #111111;
  --text-muted: #555555;
  --text-light: #888888;
  --border-light: #e5e5e5;
  --border-dark: #111111;
  --swiss-red: #ff3021;
  --swiss-red-hover: #df2214;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Arial", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Menlo", monospace;

  --space-4: 4px;
  --space-8: 8px;
  --space-16: 16px;
  --space-24: 24px;
  --space-40: 40px;
  --space-64: 64px;
  
  --site-max-width: 1240px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--swiss-red);
}

:focus-visible {
  outline: 2px solid var(--swiss-red);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--site-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-24);
  padding-right: var(--space-24);
}

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

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

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  text-transform: lowercase;
}

.brand-mark {
  width: 18px;
  height: 18px;
  fill: var(--swiss-red);
}

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

.nav-link {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.nav-link.active {
  color: var(--swiss-red);
  border-bottom: 2px solid var(--swiss-red);
  padding-bottom: 2px;
}

.header-cta {
  display: inline-block;
  background-color: var(--bg-contrast);
  color: #ffffff;
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--bg-contrast);
  transition: all 0.2s ease;
}

.header-cta:hover {
  background-color: var(--swiss-red);
  border-color: var(--swiss-red);
  color: #ffffff;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-dark);
  padding: 6px 10px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 50px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-color);
  padding: var(--space-24);
  border-bottom: 2px solid var(--border-dark);
  z-index: 999;
  flex-direction: column;
  gap: var(--space-16);
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav .nav-link {
  font-size: 1.1rem;
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--border-light);
}

/* Swiss Grid Hero */
.hero-section {
  padding: var(--space-64) 0;
  border-bottom: 1px solid var(--border-dark);
}

.hero-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--swiss-red);
  margin-bottom: var(--space-16);
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.75rem);
  line-height: 0.95;
  font-weight: 900;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  max-width: 1050px;
  margin-bottom: var(--space-24);
}

.hero-lead {
  font-size: 1.25rem;
  line-height: 1.45;
  max-width: 780px;
  color: var(--text-muted);
  font-weight: 400;
}

.swiss-stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
  margin: var(--space-64) 0;
}

.stat-cell {
  padding: var(--space-24) var(--space-16);
  border-right: 1px solid var(--border-dark);
}

.stat-cell:last-child {
  border-right: none;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 900;
  font-family: var(--font-mono);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* Horizontal Split Cards */
.section-header {
  margin-bottom: var(--space-40);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-bottom: var(--space-8);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.card-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-40);
  margin-bottom: var(--space-64);
}

.card-split {
  display: grid;
  grid-template-columns: 45% 55%;
  border: 1px solid var(--border-dark);
  background-color: #ffffff;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card-split:hover {
  border-color: var(--swiss-red);
}

.card-media {
  position: relative;
  border-right: 1px solid var(--border-dark);
  overflow: hidden;
  background-color: var(--bg-subtle);
  min-height: 280px;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.3s ease, transform 0.3s ease;
}

.card-split:hover .card-media img {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.card-content {
  padding: var(--space-40);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--swiss-red);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-8);
}

.card-heading {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-16);
  text-transform: uppercase;
}

.card-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-24);
}

.card-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-16);
  padding-top: var(--space-16);
  border-top: 1px solid var(--border-light);
}

.tags-group {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.tag {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  background-color: var(--bg-subtle);
  padding: 4px 8px;
  border: 1px solid var(--border-light);
}

.card-action {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  color: var(--text-main);
}

.card-action svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.card-split:hover .card-action {
  color: var(--swiss-red);
}

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

/* Framework Supporting Section */
.framework-section {
  padding: var(--space-64) 0;
  border-top: 1px solid var(--border-dark);
  background-color: var(--bg-subtle);
}

.framework-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-40);
}

.framework-col-left h2 {
  font-size: 2rem;
  line-height: 1.1;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.framework-col-right {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
}

.framework-item {
  border-top: 2px solid var(--border-dark);
  padding-top: var(--space-16);
}

.framework-item-num {
  font-family: var(--font-mono);
  color: var(--swiss-red);
  font-weight: 700;
  margin-bottom: var(--space-8);
}

.framework-item h3 {
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: var(--space-8);
}

.framework-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Sub-page Article Layout */
.article-header {
  padding: var(--space-64) 0 var(--space-40);
  border-bottom: 1px solid var(--border-dark);
}

.article-category {
  font-family: var(--font-mono);
  color: var(--swiss-red);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-16);
}

.article-title {
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin-bottom: var(--space-24);
}

.article-lead {
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 820px;
}

.article-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-40);
  padding: var(--space-64) 0;
}

.article-sidebar {
  position: sticky;
  top: var(--space-24);
  height: fit-content;
}

.sidebar-box {
  border: 1px solid var(--border-dark);
  padding: var(--space-16);
  margin-bottom: var(--space-24);
  background-color: var(--bg-subtle);
}

.sidebar-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  border-bottom: 1px solid var(--border-dark);
  padding-bottom: var(--space-8);
  margin-bottom: var(--space-16);
}

.sidebar-list {
  list-style: none;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.sidebar-list li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dotted var(--border-light);
  padding-bottom: 4px;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #222222;
}

.article-content h2 {
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-top: var(--space-40);
  margin-bottom: var(--space-16);
  border-top: 2px solid var(--border-dark);
  padding-top: var(--space-16);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-top: var(--space-24);
  margin-bottom: var(--space-8);
}

.article-content p {
  margin-bottom: var(--space-24);
}

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

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

/* Comparison Tables */
.data-table-wrap {
  margin: var(--space-40) 0;
  overflow-x: auto;
  border: 1px solid var(--border-dark);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.data-table th, .data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
}

.data-table th {
  background-color: var(--bg-contrast);
  color: #ffffff;
  text-transform: uppercase;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  border-right-color: #333333;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table td:last-child, .data-table th:last-child {
  border-right: none;
}

.data-table tr:nth-child(even) {
  background-color: var(--bg-subtle);
}

/* Forms & Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-64);
  padding: var(--space-64) 0;
}

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

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: var(--space-8);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-dark);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  background-color: #ffffff;
  border-radius: 0;
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-checkbox-label {
  display: flex;
  gap: var(--space-8);
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

.form-checkbox-label input {
  margin-top: 3px;
}

.form-error {
  color: var(--swiss-red);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  margin-top: 4px;
  display: none;
}

.btn-primary {
  background-color: var(--bg-contrast);
  color: #ffffff;
  border: 1px solid var(--bg-contrast);
  padding: 14px 28px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background-color: var(--swiss-red);
  border-color: var(--swiss-red);
}

.form-success-banner {
  display: none;
  background: #e7f7ed;
  border: 1px solid #10b981;
  color: #065f46;
  padding: var(--space-16);
  margin-bottom: var(--space-24);
  font-size: 0.9rem;
}

.static-map-box {
  border: 1px solid var(--border-dark);
  height: 280px;
  background-color: #f0f0f0;
  margin-top: var(--space-24);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-svg {
  width: 100%;
  height: 100%;
}

.contact-meta-card {
  border-top: 2px solid var(--border-dark);
  padding-top: var(--space-16);
  margin-top: var(--space-24);
}

/* Site Footer */
.site-footer {
  margin-top: auto;
  border-top: 2px solid var(--border-dark);
  background-color: var(--bg-color);
  padding: var(--space-64) 0 var(--space-24);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-40);
  margin-bottom: var(--space-64);
}

.footer-brand h4 {
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: lowercase;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-16);
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-16);
  border-bottom: 1px solid var(--border-dark);
  padding-bottom: 4px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  font-size: 0.85rem;
}

.footer-meta-legal {
  border-top: 1px solid var(--border-light);
  padding-top: var(--space-24);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-16);
  font-size: 0.75rem;
  color: var(--text-light);
  font-family: var(--font-mono);
}

/* Fixed Bottom Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--bg-contrast);
  color: #ffffff;
  border-top: 2px solid var(--swiss-red);
  padding: var(--space-16) var(--space-24);
  z-index: 1000;
  display: none;
}

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

.cookie-inner {
  max-width: var(--site-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
  flex-wrap: wrap;
}

.cookie-text {
  font-size: 0.85rem;
  line-height: 1.4;
  max-width: 760px;
}

.cookie-text a {
  color: #ffffff;
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.cookie-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 8px 14px;
  cursor: pointer;
  border: 1px solid #ffffff;
  background: transparent;
  color: #ffffff;
  transition: all 0.2s ease;
}

.cookie-btn-primary {
  background: var(--swiss-red);
  border-color: var(--swiss-red);
  color: #ffffff;
}

.cookie-btn-primary:hover {
  background: var(--swiss-red-hover);
}

.cookie-btn:hover:not(.cookie-btn-primary) {
  background: #ffffff;
  color: var(--bg-contrast);
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
  .card-split {
    grid-template-columns: 1fr;
  }
  .card-media {
    border-right: none;
    border-bottom: 1px solid var(--border-dark);
    height: 240px;
  }
  .swiss-stat-strip {
    grid-template-columns: 1fr 1fr;
  }
  .stat-cell:nth-child(2) {
    border-right: none;
  }
  .stat-cell:nth-child(1), .stat-cell:nth-child(2) {
    border-bottom: 1px solid var(--border-dark);
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 50px;
  }
  .nav-desktop, .header-cta {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .framework-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-40);
  }
  .card-content {
    padding: var(--space-24);
  }
}

@media (max-width: 400px) {
  .hero-title {
    font-size: 2rem;
  }
  .swiss-stat-strip {
    grid-template-columns: 1fr;
  }
  .stat-cell {
    border-right: none !important;
    border-bottom: 1px solid var(--border-dark);
  }
  .stat-cell:last-child {
    border-bottom: none;
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
  .card-content {
    padding: var(--space-16);
  }
  .cookie-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* 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;
  }
}