:root {
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-canvas: #ffffff;
  --color-ink: #000000;
  --color-hairline: #e6e6e6;
  --color-hairline-soft: #f1f1f1;
  --color-surface-soft: #f7f7f5;
  --color-block-lime: #dceeb1;
  --color-block-lilac: #c5b0f4;
  --color-block-cream: #f4ecd6;
  --color-block-pink: #efd4d4;
  --color-block-mint: #c8e6cd;
  --color-block-coral: #f3c9b6;
  --color-block-navy: #1f1d3d;
  --color-inverse-canvas: #000000;
  --color-inverse-ink: #ffffff;

  --font-sans: 'Inter', 'Helvetica Neue', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --rounded-xs: 2px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 24px;
  --rounded-xl: 32px;
  --rounded-pill: 50px;
  --rounded-full: 9999px;

  --sp-xs: 8px;
  --sp-sm: 12px;
  --sp-md: 16px;
  --sp-lg: 24px;
  --sp-xl: 32px;
  --sp-xxl: 48px;
  --sp-section: 96px;

  --header-height: 72px;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 320;
  line-height: 1.45;
  letter-spacing: -0.26px;
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
ul, ol { list-style: none; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--sp-xxl);
}

@media (max-width: 768px) {
  .container { padding: 0 var(--sp-lg); }
}

@media (max-width: 560px) {
  .container { padding: 0 var(--sp-md); }
}

/* === HEADER === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

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

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-ink);
  text-decoration: none;
}

.site-logo svg { flex-shrink: 0; }

.site-nav { display: flex; align-items: center; gap: var(--sp-xs); }

.site-nav a {
  font-size: 16px;
  font-weight: 480;
  letter-spacing: -0.1px;
  padding: 8px var(--sp-sm);
  border-radius: var(--rounded-full);
  transition: background 0.15s;
  white-space: nowrap;
}

.site-nav a:hover { background: var(--color-surface-soft); }
.site-nav a.active { background: var(--color-surface-soft); font-weight: 600; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--rounded-full);
  padding: 0;
}

.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 960px) {
  .burger { display: flex; }
  .site-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-canvas);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--sp-xl) var(--sp-lg);
    gap: var(--sp-xs);
    z-index: 99;
    overflow-y: auto;
  }
  .site-nav.open { display: flex; }
  .site-nav a { font-size: 20px; padding: 12px var(--sp-md); width: 100%; }
}

/* === FOOTER === */
.site-footer {
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  padding: var(--sp-xxl) 0;
  margin-top: var(--sp-section);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: var(--sp-xl);
  align-items: start;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: var(--sp-sm);
}

.footer-col ul { display: flex; flex-direction: column; gap: 8px; }

.footer-col a {
  font-size: 14px;
  font-weight: 330;
  letter-spacing: -0.14px;
  color: var(--color-ink);
  opacity: 0.75;
  transition: opacity 0.15s;
}

.footer-col a:hover { opacity: 1; }

.footer-bottom {
  margin-top: var(--sp-xxl);
  padding-top: var(--sp-lg);
  border-top: 1px solid var(--color-hairline-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-ink);
  opacity: 0.5;
}

@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-lg); }
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 480;
  line-height: 1.4;
  letter-spacing: -0.1px;
  padding: 10px 20px;
  border-radius: var(--rounded-pill);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
  min-height: 44px;
}

.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { opacity: 0.85; }
.btn-secondary {
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1.5px solid var(--color-hairline);
}
.btn-secondary:hover { background: var(--color-surface-soft); }

/* === COLOR BLOCKS === */
.color-block {
  border-radius: var(--rounded-lg);
  padding: var(--sp-xxl);
  margin: var(--sp-section) 0;
}

.color-block-lime { background: var(--color-block-lime); }
.color-block-lilac { background: var(--color-block-lilac); }
.color-block-cream { background: var(--color-block-cream); }
.color-block-pink { background: var(--color-block-pink); }
.color-block-mint { background: var(--color-block-mint); }
.color-block-coral { background: var(--color-block-coral); }
.color-block-navy { background: var(--color-block-navy); color: var(--color-inverse-ink); }

@media (max-width: 768px) {
  .color-block {
    border-radius: 0;
    margin-left: calc(-1 * var(--sp-lg));
    margin-right: calc(-1 * var(--sp-lg));
    padding: var(--sp-xxl) var(--sp-lg);
  }
}

.block-inner { max-width: 720px; }

.block-eyebrow {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.54px;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}

.block-headline {
  font-size: 26px;
  font-weight: 540;
  line-height: 1.35;
  letter-spacing: -0.26px;
  margin-bottom: var(--sp-md);
}

.block-body {
  font-size: 20px;
  font-weight: 330;
  line-height: 1.4;
  letter-spacing: -0.14px;
}

/* === TYPOGRAPHY === */
h1 {
  font-size: clamp(48px, 6vw, 86px);
  font-weight: 340;
  line-height: 1.0;
  letter-spacing: -1.72px;
  margin-bottom: var(--sp-lg);
}

h2 {
  font-size: clamp(32px, 4vw, 64px);
  font-weight: 340;
  line-height: 1.1;
  letter-spacing: -0.96px;
  margin-bottom: var(--sp-lg);
}

h3 {
  font-size: 26px;
  font-weight: 540;
  line-height: 1.35;
  letter-spacing: -0.26px;
  margin-bottom: var(--sp-sm);
}

p { margin-bottom: var(--sp-md); }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.54px;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
  display: block;
}

.caption {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

/* === HERO === */
.site-hero {
  padding: var(--sp-section) 0;
  border-bottom: 1px solid var(--color-hairline);
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: 0.54px;
  text-transform: uppercase;
  margin-bottom: var(--sp-xl);
}

.hero-title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 340;
  line-height: 1.05;
  letter-spacing: -0.96px;
  max-width: 900px;
  margin-bottom: var(--sp-lg);
}

.hero-summary {
  font-size: 20px;
  font-weight: 330;
  line-height: 1.4;
  max-width: 640px;
  margin-bottom: var(--sp-xxl);
  color: rgba(0,0,0,0.7);
}

/* === ARTICLE META === */
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-lg);
  align-items: center;
  padding: var(--sp-lg) 0;
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
  margin-bottom: var(--sp-xl);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: rgba(0,0,0,0.6);
}

.meta-item strong { color: var(--color-ink); }

/* === TABLE OF CONTENTS === */
.toc {
  background: var(--color-surface-soft);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
  margin: var(--sp-xl) 0;
}

.toc h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}

.toc ol { list-style: decimal; padding-left: var(--sp-xl); display: flex; flex-direction: column; gap: var(--sp-xs); }

.toc a {
  font-size: 16px;
  font-weight: 330;
  letter-spacing: -0.14px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}

.toc a:hover { border-bottom-color: var(--color-ink); }

/* === ARTICLE BODY === */
.article-layout {
  display: grid;
  grid-template-columns: 1fr min(720px, 100%);
  gap: var(--sp-xxl);
}

.article-content {
  max-width: 720px;
}

.article-content h2 { font-size: 36px; margin-top: var(--sp-section); margin-bottom: var(--sp-lg); }
.article-content h3 { font-size: 24px; margin-top: var(--sp-xxl); margin-bottom: var(--sp-md); }
.article-content p { font-size: 18px; line-height: 1.65; margin-bottom: var(--sp-md); }
.article-content ul, .article-content ol { padding-left: var(--sp-xl); margin-bottom: var(--sp-md); display: flex; flex-direction: column; gap: var(--sp-xs); }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { font-size: 18px; line-height: 1.65; }
.article-content blockquote {
  border-left: 3px solid var(--color-ink);
  padding-left: var(--sp-lg);
  margin: var(--sp-xl) 0;
  font-size: 20px;
  font-weight: 330;
  line-height: 1.4;
}

/* === GALLERY === */
.media-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-md);
  margin: var(--sp-xl) 0;
}

.gallery-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--rounded-md);
}

.gallery-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-top: var(--sp-xs);
  color: rgba(0,0,0,0.6);
}

@media (max-width: 560px) {
  .media-gallery { grid-template-columns: 1fr; }
}

/* === EDITORIAL SUMMARY === */
.editorial-summary {
  border-left: 3px solid var(--color-ink);
  padding: var(--sp-lg) var(--sp-xl);
  margin: var(--sp-xl) 0;
  background: var(--color-surface-soft);
  border-radius: 0 var(--rounded-md) var(--rounded-md) 0;
}

.editorial-summary .eyebrow { margin-bottom: var(--sp-sm); }
.editorial-summary p { font-size: 18px; font-weight: 400; line-height: 1.55; margin: 0; }

/* === KEY CONTEXT === */
.key-context {
  padding: var(--sp-xl);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  margin: var(--sp-xl) 0;
}

.key-context h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}

.key-context ul { list-style: disc; padding-left: var(--sp-lg); display: flex; flex-direction: column; gap: 8px; }
.key-context li { font-size: 16px; line-height: 1.5; }

/* === CARD GRID === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--sp-lg);
  margin: var(--sp-xl) 0;
}

.article-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  overflow: hidden;
  transition: transform 0.15s, box-shadow 0.15s;
}

.article-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.card-image { height: 200px; overflow: hidden; background: var(--color-surface-soft); }
.card-image img { width: 100%; height: 100%; object-fit: cover; }

.card-body { padding: var(--sp-lg); flex: 1; display: flex; flex-direction: column; }

.card-category {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: rgba(0,0,0,0.5);
  margin-bottom: var(--sp-xs);
}

.card-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.2px;
  margin-bottom: var(--sp-xs);
}

.card-excerpt { font-size: 16px; line-height: 1.5; color: rgba(0,0,0,0.7); flex: 1; }

.card-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: rgba(0,0,0,0.4);
  margin-top: var(--sp-md);
}

/* === RELATED ARTICLES === */
.related-articles {
  margin-top: var(--sp-section);
  padding-top: var(--sp-xl);
  border-top: 1px solid var(--color-hairline);
}

.related-articles h3 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: var(--sp-xl);
}

/* === WALKTHROUGH SECTIONS === */
.walkthrough-step {
  display: flex;
  gap: var(--sp-xl);
  align-items: flex-start;
  margin: var(--sp-xl) 0;
}

.step-number {
  font-size: 64px;
  font-weight: 340;
  line-height: 1;
  letter-spacing: -0.96px;
  color: var(--color-hairline);
  flex-shrink: 0;
  min-width: 80px;
}

.step-content { flex: 1; }

@media (max-width: 560px) {
  .walkthrough-step { flex-direction: column; gap: var(--sp-md); }
  .step-number { font-size: 40px; }
}

/* === BREADCRUMBS === */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-xs);
  align-items: center;
  padding: var(--sp-md) 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: rgba(0,0,0,0.5);
}

.breadcrumbs a { color: inherit; }
.breadcrumbs a:hover { color: var(--color-ink); }
.breadcrumbs .sep { opacity: 0.3; }

/* === CONTACT FORM === */
.contact-wrap { max-width: 640px; }

.form-group { margin-bottom: var(--sp-lg); }

.form-group label {
  display: block;
  font-size: 16px;
  font-weight: 480;
  margin-bottom: var(--sp-xs);
  letter-spacing: -0.1px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 320;
  line-height: 1.45;
  padding: 12px 14px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  background: var(--color-canvas);
  color: var(--color-ink);
  transition: border-color 0.15s;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-ink);
}

.form-group textarea { min-height: 160px; resize: vertical; }

.form-confirmation {
  display: none;
  padding: var(--sp-xl);
  background: var(--color-block-lime);
  border-radius: var(--rounded-md);
  font-size: 18px;
  font-weight: 400;
}

/* === PAGE HERO (inner pages) === */
.page-hero {
  padding: var(--sp-section) 0 var(--sp-xxl);
}

.page-hero .eyebrow { margin-bottom: var(--sp-lg); }
.page-hero h1 {
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 340;
  line-height: 1.05;
  letter-spacing: -0.96px;
  max-width: 800px;
}

.page-content {
  max-width: 720px;
  padding-bottom: var(--sp-section);
}

.page-content h2 { font-size: 32px; font-weight: 340; letter-spacing: -0.5px; margin-top: var(--sp-xxl); margin-bottom: var(--sp-md); }
.page-content h3 { font-size: 22px; font-weight: 540; margin-top: var(--sp-xl); margin-bottom: var(--sp-sm); }
.page-content p { font-size: 18px; line-height: 1.65; margin-bottom: var(--sp-md); }
.page-content ul { list-style: disc; padding-left: var(--sp-xl); margin-bottom: var(--sp-md); display: flex; flex-direction: column; gap: 8px; }
.page-content li { font-size: 18px; line-height: 1.65; }
.page-content a { border-bottom: 1px solid currentColor; }
.page-content a:hover { opacity: 0.7; }

/* === COOKIE BANNER === */
.cookie-banner {
  position: fixed;
  bottom: var(--sp-lg);
  left: var(--sp-lg);
  right: var(--sp-lg);
  z-index: 200;
  max-width: 560px;
  background: var(--color-inverse-canvas);
  color: var(--color-inverse-ink);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
  display: none;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}

.cookie-banner.show { display: block; }

.cookie-banner p {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: var(--sp-md);
}

.cookie-banner a { color: #c5b0f4; border-bottom: 1px solid; }

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-xs);
}

.cookie-btn {
  padding: 8px 18px;
  border-radius: var(--rounded-pill);
  font-size: 16px;
  font-weight: 480;
  border: 1.5px solid rgba(255,255,255,0.4);
  background: transparent;
  color: var(--color-inverse-ink);
  cursor: pointer;
  transition: background 0.15s;
}

.cookie-btn.accept { background: var(--color-inverse-ink); color: var(--color-inverse-canvas); border-color: var(--color-inverse-ink); }
.cookie-btn:hover { opacity: 0.85; }

/* === SECTION SPACING === */
.section { margin: var(--sp-section) 0; }
.section-sm { margin: var(--sp-xxl) 0; }

/* === MARQUEE STRIP (decorative divider) === */
.marquee-strip {
  background: var(--color-inverse-canvas);
  color: var(--color-inverse-ink);
  height: 36px;
  display: flex;
  align-items: center;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.5px;
}

.marquee-inner {
  white-space: nowrap;
  padding: 0 var(--sp-xxl);
  opacity: 0.7;
}

/* === WHAT ARTICLE DOES NOT COVER === */
.does-not-cover {
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
  margin: var(--sp-xl) 0;
  background: var(--color-surface-soft);
}

.does-not-cover h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: var(--sp-md);
}

.does-not-cover ul { list-style: disc; padding-left: var(--sp-lg); display: flex; flex-direction: column; gap: 8px; }
.does-not-cover li { font-size: 16px; line-height: 1.5; color: rgba(0,0,0,0.7); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root { --sp-section: 64px; }
  h1 { font-size: clamp(36px, 8vw, 56px); letter-spacing: -0.8px; }
  h2 { font-size: clamp(28px, 6vw, 40px); letter-spacing: -0.5px; }
}

@media (max-width: 560px) {
  :root { --sp-section: 48px; }
  h1 { font-size: 36px; letter-spacing: -0.5px; }
  .btn { font-size: 18px; width: 100%; justify-content: center; }
  .card-grid { grid-template-columns: 1fr; }
}