:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --color-bg: #f7f8f9;
  --color-surface: #ffffff;
  --color-surface-subtle: #f0f2f5;
  --color-border: #e2e5e9;
  --color-text-main: #111418;
  --color-text-muted: #545b67;
  --color-accent: #0b4fba;
  --color-accent-dark: #083782;
  --color-accent-soft: #eef4ff;
  --color-border-accent: #111418;
  --color-success: #0b7a44;
  --color-error: #c52828;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;

  --line-height-tight: 1.15;
  --line-height-base: 1.55;
  --line-height-relaxed: 1.7;

  --transition-speed: 0.2s;
}

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

html {
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-sans);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  color: var(--color-text-main);
}

h1, h2, h3, h4, h5, h6, .brand-name {
  overflow-wrap: anywhere;
  color: var(--color-text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.25;
  margin-bottom: var(--space-4);
}

h3 {
  font-size: 1.25rem;
  line-height: 1.35;
  margin-bottom: var(--space-3);
}

p {
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  overflow-wrap: anywhere;
}

a:hover {
  text-decoration: underline;
  color: var(--color-accent-dark);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Layout Utilities */
.site-wrapper {
  flex: 1 0 auto;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid > * {
  min-width: 0;
}

.section {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.section-title-wrap {
  margin-bottom: var(--space-5);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-3);
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

/* Header - Slim, Modern & Sticky */
.site-header {
  height: 48px;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color var(--transition-speed);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  min-width: 0;
  flex-shrink: 0;
}

.brand-wrapper:hover {
  text-decoration: none;
}

.brand-logo-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--color-text-main);
}

.brand-name {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-text-main);
  white-space: nowrap;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-desktop a {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--transition-speed), border-color var(--transition-speed);
}

.nav-desktop a:hover,
.nav-desktop a.is-active {
  color: var(--color-text-main);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.header-cta-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  padding: 0 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-text-main);
  color: #ffffff !important;
  text-decoration: none;
  border: 1px solid var(--color-text-main);
  flex-shrink: 0;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.header-cta-link:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  text-decoration: none;
}

.nav-toggle-btn {
  display: none;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid var(--color-border);
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--color-text-main);
  flex-shrink: 0;
}

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

/* Mobile Nav Drawer */
.mobile-nav-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-text-main);
  padding: var(--space-4);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.mobile-nav-panel.is-visible {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-nav-panel a {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}

.mobile-nav-panel a:last-child {
  border-bottom: none;
}

/* Swiss Minimalist Hero */
.hero-section {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-5);
  align-items: center;
}

.hero-content {
  min-width: 0;
}

.hero-lead {
  font-size: 1.1875rem;
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 var(--space-4);
  background-color: var(--color-text-main);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--color-text-main);
  text-decoration: none;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  text-decoration: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 var(--space-4);
  background-color: transparent;
  color: var(--color-text-main);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  text-decoration: none;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-text-main);
  background-color: var(--color-surface-subtle);
  text-decoration: none;
}

.hero-aside-card {
  background-color: var(--color-surface-subtle);
  border-top: 4px solid var(--color-accent);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stat-item {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-3);
}

.stat-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

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

/* Card Style: Border Accent */
.accent-card {
  background-color: var(--color-surface);
  border-top: 4px solid var(--color-text-main);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-top-color var(--transition-speed);
}

.accent-card:hover {
  border-top-color: var(--color-accent);
}

.accent-card.featured {
  border-top-color: var(--color-accent);
}

.card-header-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.card-tag {
  background-color: var(--color-surface-subtle);
  padding: 2px 8px;
  border: 1px solid var(--color-border);
  font-weight: 600;
  color: var(--color-text-main);
}

.card-body {
  margin-bottom: var(--space-4);
  min-width: 0;
}

.card-body h3 {
  font-size: 1.375rem;
  margin-bottom: var(--space-2);
}

.card-body p {
  font-size: 0.9375rem;
  line-height: var(--line-height-relaxed);
}

.card-spec-list {
  list-style: none;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border);
}

.card-spec-list li {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-1);
}

.card-spec-list li span:last-child {
  font-weight: 700;
  color: var(--color-text-main);
}

.card-footer {
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-link {
  font-size: 0.9375rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-main);
}

.card-link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* Content Columns & Grids */
.cards-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.cards-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

/* Deep Dive & Detail Pages */
.page-hero {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.breadcrumbs {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
}

.breadcrumbs a {
  color: var(--color-text-muted);
}

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

.breadcrumbs span {
  margin: 0 var(--space-1);
}

.article-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.article-body {
  min-width: 0;
  background-color: var(--color-surface);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-accent);
}

.article-body h2 {
  margin-top: var(--space-5);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-2);
}

.article-body h2:first-of-type {
  margin-top: 0;
}

.article-body p {
  font-size: 1.0625rem;
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.article-body ul, .article-body ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-4);
}

.article-body li {
  margin-bottom: var(--space-2);
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.article-body li strong {
  color: var(--color-text-main);
}

.article-sidebar {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.sidebar-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-text-main);
  padding: var(--space-4);
}

.sidebar-box h4 {
  font-size: 1rem;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}

/* Comparison Tables */
.table-wrapper {
  overflow-x: auto;
  margin-top: var(--space-4);
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-border);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9375rem;
  background-color: var(--color-surface);
}

th, td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

th {
  background-color: var(--color-surface-subtle);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-main);
}

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

/* Pros and Cons Box */
.pros-cons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

.pros-box, .cons-box {
  padding: var(--space-4);
  background-color: var(--color-surface-subtle);
}

.pros-box {
  border-top: 4px solid var(--color-success);
}

.cons-box {
  border-top: 4px solid var(--color-error);
}

.pros-box h4 {
  color: var(--color-success);
  margin-bottom: var(--space-3);
}

.cons-box h4 {
  color: var(--color-error);
  margin-bottom: var(--space-3);
}

/* Code & Architecture Display */
.code-callout {
  background-color: #1a1d24;
  color: #e6edf3;
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: var(--space-4);
  overflow-x: auto;
  border-left: 4px solid var(--color-accent);
}

/* Visual Media Container */
.media-container {
  margin-top: var(--space-4);
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-border);
}

.media-container img {
  width: 100%;
  height: auto;
  display: block;
}

.media-caption {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-surface-subtle);
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--space-1);
  color: var(--color-text-main);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3);
  font-size: 0.9375rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-main);
  border-radius: 0;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-text-main);
}

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

.form-error {
  display: none;
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: var(--space-1);
  font-family: var(--font-mono);
}

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

.form-input.is-invalid + .form-error,
.form-textarea.is-invalid + .form-error {
  display: block;
}

.form-feedback-message {
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  border-left: 4px solid var(--color-success);
  background-color: var(--color-surface-subtle);
  color: var(--color-text-main);
}

.static-map-box {
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 280px;
}

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  border-top: 2px solid var(--color-text-main);
  padding-top: var(--space-6);
  padding-bottom: var(--space-5);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.footer-brand-col {
  min-width: 0;
}

.footer-brand-col p {
  max-width: 440px;
  margin-top: var(--space-3);
  font-size: 0.875rem;
}

.footer-details {
  margin-top: var(--space-4);
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.footer-details strong {
  color: var(--color-text-main);
}

.footer-col-title {
  font-size: 0.875rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-main);
  margin-bottom: var(--space-3);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

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

.footer-bottom {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-top: 2px solid var(--color-text-main);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  padding: var(--space-4) 0;
  z-index: 1000;
}

.cookie-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.cookie-text {
  flex: 1 1 500px;
  min-width: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.cookie-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.cookie-btn {
  height: 38px;
  padding: 0 var(--space-3);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 0;
}

.cookie-btn-accept {
  background-color: var(--color-text-main);
  color: #ffffff;
  border: 1px solid var(--color-text-main);
}

.cookie-btn-accept:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.cookie-btn-reject {
  background-color: transparent;
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

.cookie-btn-reject:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-text-main);
}

.cookie-btn-pref {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px dashed var(--color-accent);
}

.cookie-btn-pref:hover {
  background-color: var(--color-accent-soft);
}

/* Responsive Rules */
@media (max-width: 1024px) {
  .cards-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 44px;
  }
  
  .nav-desktop,
  .header-cta-link {
    display: none;
  }

  .nav-toggle-btn {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

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

  .article-layout {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .pros-cons-grid {
    grid-template-columns: 1fr;
  }

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

  .cookie-actions {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 399px) {
  .container {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }

  .stat-value {
    font-size: 1.75rem;
  }

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

/* Accessibility */
@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;
  }
}