:root {
  --color-primary: #f7a501;
  --color-primary-pressed: #dd9001;
  --color-on-primary: #23251d;
  --color-ink: #23251d;
  --color-body: #4d4f46;
  --color-charcoal: #33342d;
  --color-mute: #6c6e63;
  --color-ash: #9b9c92;
  --color-hairline: #bfc1b7;
  --color-hairline-soft: #dcdfd2;
  --color-canvas: #eeefe9;
  --color-surface-soft: #e5e7e0;
  --color-surface-card: #ffffff;
  --color-surface-doc: #fcfcfa;
  --color-surface-dark: #23251d;
  --color-on-dark: #ffffff;
  --color-link-teal: #1078a3;
  --color-accent-blue-soft: #dceaf6;
  --color-accent-green-soft: #d9eddf;

  --font-sans: 'IBM Plex Sans', -apple-system, system-ui, sans-serif;
  --font-mono: 'Source Code Pro', ui-monospace, monospace;

  --rounded-none: 0px;
  --rounded-xs: 2px;
  --rounded-sm: 4px;
  --rounded-md: 6px;
  --rounded-lg: 8px;
  --rounded-full: 9999px;

  --sp-xxs: 2px;
  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 12px;
  --sp-lg: 16px;
  --sp-xl: 24px;
  --sp-xxl: 32px;
  --sp-section: 80px;

  --header-height: 56px;
}

*, *::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: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-body);
  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-xl);
}

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

/* === 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-sm);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.3px;
}

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

.site-nav { display: flex; align-items: center; gap: 4px; }

.site-nav a {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-body);
  padding: 6px var(--sp-md);
  border-radius: var(--rounded-md);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.site-nav a:hover { background: var(--color-surface-soft); color: var(--color-ink); }
.site-nav a.active { background: var(--color-surface-card); color: var(--color-ink); }

.nav-cta {
  background: var(--color-primary) !important;
  color: var(--color-on-primary) !important;
  font-weight: 700 !important;
  padding: 8px var(--sp-lg) !important;
  border-radius: var(--rounded-md) !important;
  margin-left: var(--sp-xs);
}

.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-md);
  padding: 0;
}

.burger span {
  display: block;
  width: 20px;
  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: 768px) {
  .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: 18px; padding: 10px 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-xxl);
  align-items: start;
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: var(--sp-md);
}

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

.footer-col a {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-mute);
  transition: color 0.15s;
}

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

.footer-bottom {
  margin-top: var(--sp-xxl);
  padding-top: var(--sp-lg);
  border-top: 1px solid var(--color-hairline-soft);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-mute);
}

@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: 14px;
  font-weight: 700;
  line-height: 1.5;
  padding: 8px var(--sp-lg);
  border-radius: var(--rounded-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  height: 40px;
  transition: background 0.15s;
  min-width: 44px;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.btn-primary:hover { background: var(--color-primary-pressed); }
.btn-secondary {
  background: var(--color-surface-soft);
  color: var(--color-ink);
}
.btn-secondary:hover { background: var(--color-hairline-soft); }

/* === CARDS === */
.product-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
}

.doc-card {
  background: var(--color-surface-doc);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
}

/* === CALLOUT BANNERS === */
.banner-blue {
  background: var(--color-accent-blue-soft);
  color: var(--color-ink);
  border-radius: var(--rounded-md);
  padding: var(--sp-lg) 20px;
  font-size: 16px;
  margin: var(--sp-xl) 0;
}

.banner-green {
  background: var(--color-accent-green-soft);
  color: var(--color-ink);
  border-radius: var(--rounded-md);
  padding: var(--sp-lg) 20px;
  font-size: 16px;
  margin: var(--sp-xl) 0;
}

/* === TYPOGRAPHY === */
h1 {
  font-family: var(--font-sans);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-ink);
  margin-bottom: var(--sp-lg);
}

h2 {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.33;
  letter-spacing: -0.6px;
  color: var(--color-ink);
  margin-bottom: var(--sp-lg);
}

h3 {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.5px;
  color: var(--color-ink);
  margin-bottom: var(--sp-md);
}

h4 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: var(--sp-md);
}

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

.eyebrow {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-mute);
  display: block;
  margin-bottom: var(--sp-md);
  letter-spacing: 0;
}

.body-link {
  color: var(--color-link-teal);
}

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

.hero-eyebrow {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-mute);
  margin-bottom: var(--sp-lg);
}

.hero-title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-ink);
  max-width: 720px;
  margin-bottom: var(--sp-lg);
}

.hero-desc {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  max-width: 560px;
  margin-bottom: var(--sp-xxl);
  color: var(--color-body);
}

.hero-actions { display: flex; gap: var(--sp-md); flex-wrap: wrap; }

/* === 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-xxl);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-mute);
}

.meta-item strong { color: var(--color-ink); font-weight: 700; }

/* === TABLE OF CONTENTS === */
.toc {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
  margin: var(--sp-xxl) 0;
}

.toc-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-mute);
  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: 15px;
  font-weight: 400;
  color: var(--color-link-teal);
}

.toc a:hover { text-decoration: underline; }

/* === ARTICLE CONTENT === */
.article-content {
  max-width: 720px;
}

.article-content h2 { margin-top: var(--sp-section); margin-bottom: var(--sp-lg); font-size: 24px; }
.article-content h3 { margin-top: var(--sp-xxl); margin-bottom: var(--sp-md); }
.article-content p { font-size: 15px; line-height: 1.71; margin-bottom: var(--sp-lg); color: var(--color-body); }
.article-content ul { list-style: disc; padding-left: var(--sp-xl); margin-bottom: var(--sp-lg); display: flex; flex-direction: column; gap: var(--sp-xs); }
.article-content li { font-size: 15px; line-height: 1.71; color: var(--color-body); }
.article-content a { color: var(--color-link-teal); }
.article-content a:hover { text-decoration: underline; }

/* === EDITORIAL SUMMARY === */
.editorial-summary {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
  margin: var(--sp-xxl) 0;
}

.editorial-summary .eyebrow { margin-bottom: var(--sp-md); }
.editorial-summary p { font-size: 15px; line-height: 1.71; margin: 0; }

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

.key-context .kc-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-mute);
  margin-bottom: var(--sp-md);
}

.key-context ul { list-style: disc; padding-left: var(--sp-lg); display: flex; flex-direction: column; gap: var(--sp-xs); }
.key-context li { font-size: 14px; line-height: 1.5; color: var(--color-body); }

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

.does-not-cover .dnc-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-mute);
  margin-bottom: var(--sp-md);
}

.does-not-cover ul { list-style: disc; padding-left: var(--sp-lg); display: flex; flex-direction: column; gap: var(--sp-xs); }
.does-not-cover li { font-size: 14px; line-height: 1.5; color: var(--color-body); }

/* === CARD GRID === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--sp-lg);
  margin: var(--sp-xxl) 0;
}

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

.article-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.08); }

.card-image { height: 180px; overflow: hidden; background: var(--color-surface-soft); }
.card-image img { width: 100%; height: 100%; object-fit: cover; }

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

.card-category {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-mute);
  margin-bottom: var(--sp-xs);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-ink);
  margin-bottom: var(--sp-xs);
}

.card-excerpt { font-size: 15px; line-height: 1.5; color: var(--color-body); flex: 1; }

.card-meta {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ash);
  margin-top: var(--sp-md);
}

/* === PROCESS DIAGRAM (text-based) === */
.process-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: var(--sp-xxl) 0;
}

.process-step {
  display: flex;
  gap: var(--sp-xl);
  position: relative;
}

.process-step::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 40px;
  bottom: -24px;
  width: 2px;
  background: var(--color-hairline);
}

.process-step:last-child::before { display: none; }

.step-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.step-dot {
  width: 40px;
  height: 40px;
  border-radius: var(--rounded-full);
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-body {
  padding-bottom: var(--sp-xxl);
  flex: 1;
}

.step-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--sp-sm);
  color: var(--color-ink);
  margin-top: var(--sp-xs);
}

.step-body p {
  font-size: 15px;
  line-height: 1.71;
  color: var(--color-body);
  margin-bottom: 0;
}

/* === BREADCRUMBS === */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-xs);
  align-items: center;
  padding: var(--sp-md) 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-mute);
}

.breadcrumbs a { color: inherit; }
.breadcrumbs a:hover { color: var(--color-ink); text-decoration: underline; }
.breadcrumbs .sep { opacity: 0.4; }

/* === CONTACT FORM === */
.contact-wrap { max-width: 560px; }

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: var(--sp-xs);
  color: var(--color-ink);
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  padding: 8px 12px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  background: var(--color-surface-card);
  color: var(--color-ink);
  height: 36px;
  transition: border-color 0.15s;
}

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

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(247,165,1,0.2);
}

.form-confirmation {
  display: none;
  padding: var(--sp-lg) 20px;
  background: var(--color-accent-green-soft);
  border-radius: var(--rounded-md);
  font-size: 16px;
  color: var(--color-ink);
}

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

.page-hero .eyebrow { margin-bottom: var(--sp-lg); }
.page-hero h1 { max-width: 720px; }

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

.page-content h2 { margin-top: var(--sp-xxl); margin-bottom: var(--sp-lg); }
.page-content h3 { margin-top: var(--sp-xl); margin-bottom: var(--sp-md); }
.page-content p { font-size: 15px; line-height: 1.71; margin-bottom: var(--sp-lg); }
.page-content ul { list-style: disc; padding-left: var(--sp-xl); margin-bottom: var(--sp-lg); display: flex; flex-direction: column; gap: var(--sp-xs); }
.page-content li { font-size: 15px; line-height: 1.71; }
.page-content a { color: var(--color-link-teal); }
.page-content a:hover { text-decoration: underline; }

/* === COOKIE BANNER === */
.cookie-banner {
  position: fixed;
  bottom: var(--sp-lg);
  left: var(--sp-lg);
  right: var(--sp-lg);
  z-index: 200;
  max-width: 500px;
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
  border-radius: var(--rounded-md);
  padding: var(--sp-xl);
  display: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

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

.cookie-banner p {
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: var(--sp-md);
  color: rgba(255,255,255,0.85);
}

.cookie-banner a { color: var(--color-primary); }

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

.cookie-btn {
  padding: 6px 14px;
  border-radius: var(--rounded-md);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,0.25);
  background: transparent;
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  height: 32px;
}

.cookie-btn.accept { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
.cookie-btn:hover { opacity: 0.85; }

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

/* === FEATURE TILES === */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--sp-lg);
  margin: var(--sp-xxl) 0;
}

.feature-tile {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: 20px;
}

.tile-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--sp-sm);
}

.tile-desc {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.43;
  color: var(--color-body);
}

/* === 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-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-mute);
  margin-bottom: var(--sp-xl);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root { --sp-section: 64px; }
  h1 { font-size: 28px; }
}

@media (max-width: 480px) {
  :root { --sp-section: 48px; }
  .card-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
}