/* ==========================================================================
   RANKING FRONTIER — Design System · Components
   --------------------------------------------------------------------------
   Reusable UI: header/nav, buttons, hero, cards, process, CTA panel,
   footer, toast. Every block below is a component reused by future pages.
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. Buttons
   -------------------------------------------------------------------------- */
.btn {
  --btn-pad-y: 0.8125rem;
  --btn-pad-x: 1.375rem;
  --btn-font: 0.9375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  border: 1px solid transparent;
  border-radius: var(--radius-btn);
  font-family: inherit;
  font-size: var(--btn-font);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease),
    transform var(--t-fast) var(--ease);
}

.btn svg { width: 1.05rem; height: 1.05rem; flex: none; }
.btn svg.icon-arrow { transition: transform var(--t-fast) var(--ease); }
.btn:hover svg.icon-arrow { transform: translateX(3px); }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), var(--shadow-xs);
}

.btn--primary:hover {
  background: var(--color-accent-strong);
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), var(--shadow-md);
}

.btn--primary:active { transform: translateY(0); box-shadow: var(--shadow-xs); }

/* Light outline button (on white) */
.btn--outline {
  background: var(--color-surface);
  border-color: var(--color-line-strong);
  color: var(--color-ink-900);
}

.btn--outline:hover {
  border-color: var(--color-ink-300);
  background: var(--color-surface-2);
  transform: translateY(-1px);
}

.btn--outline:active { transform: translateY(0); }

/* Ghost button (on dark surfaces) */
.btn--ghost {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-night-line-strong);
  color: #fff;
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.11);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.btn--ghost:active { transform: translateY(0); }

.btn--lg { --btn-pad-y: 1rem; --btn-pad-x: 1.75rem; --btn-font: 1rem; }
.btn--sm { --btn-pad-y: 0.625rem; --btn-pad-x: 1.0625rem; --btn-font: 0.875rem; }

/* Applied to CTA rows on small screens */
@media (max-width: 560px) {
  .cta-row .btn { width: 100%; }
}

/* Inline "Learn more / Read article" text link */
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease);
}

.link-more svg { width: 15px; height: 15px; transition: transform var(--t-fast) var(--ease); }

.link-more:hover { color: var(--color-accent-strong); }
.link-more:hover svg { transform: translateX(3px); }


/* --------------------------------------------------------------------------
   2. Header / Navbar
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.88);
  -webkit-backdrop-filter: blur(14px) saturate(1.5);
  backdrop-filter: blur(14px) saturate(1.5);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-line);
  box-shadow: 0 12px 32px -24px rgba(10, 18, 32, 0.28);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-ink-950);
  color: #fff;
  display: grid;
  place-items: center;
  flex: none;
  transition: background-color var(--t-fast) var(--ease);
}

.brand:hover .brand-mark { background: var(--color-accent); }

.brand-mark svg { width: 20px; height: 20px; }

.brand-name {
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.035em;
  color: var(--color-ink-950);
  white-space: nowrap;
}

/* Final approved brand logo (asset, aspect-locked — never distorted) */
.brand-logo {
  display: block;
  height: 34px;
  width: auto;
  max-width: 100%;
}

.footer-logo-panel {
  display: inline-flex;
  background: var(--color-surface);
  border-radius: 14px;
  padding: 12px 16px;
}

@media (max-width: 680px) {
  .brand-logo { height: 28px; }
}

@media (max-width: 560px) {
  .brand-logo { height: 26px; }
}

/* Desktop navigation */
.site-nav { display: none; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item { position: relative; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-600);
  text-decoration: none;
  position: relative;
  transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.nav-link:hover { color: var(--color-ink-950); background: var(--color-surface-2); }

.nav-link[aria-current="page"] { color: var(--color-ink-950); }

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-accent);
}

.nav-link .chev { width: 13px; height: 13px; transition: transform var(--t-fast) var(--ease); }
.dd.is-open .nav-link .chev,
.dd.is-open .dd-trigger .chev { transform: rotate(180deg); }

/* --------------------------------------------------------------------------
   2b. Multi-level dropdowns (Services + Resources)
   -------------------------------------------------------------------------- */
.dd { position: relative; }

.dd-trigger { font-family: inherit; }

.dd-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 238px;
  padding: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition:
    opacity var(--t-fast) var(--ease),
    transform var(--t-fast) var(--ease),
    visibility var(--t-fast);
  z-index: 210;
}

.dd.is-open > .dd-panel,
.dd:focus-within > .dd-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dd-panel > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-600);
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.dd-panel > a:hover { background: var(--color-surface-2); color: var(--color-ink-950); }

.dd-panel > a[aria-current="page"] {
  color: var(--color-accent-strong);
  background: var(--color-accent-soft);
}

.dd-panel > a svg { width: 13px; height: 13px; color: var(--color-ink-300); flex: none; }

/* Second-level flyout (Link Building ▸) */
.dd-sub { position: relative; }

.dd-sub-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-600);
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.dd-sub:hover > .dd-sub-toggle,
.dd-sub.open > .dd-sub-toggle { background: var(--color-surface-2); color: var(--color-ink-950); }

.dd-sub-toggle .chev { width: 13px; height: 13px; color: var(--color-ink-300); transition: transform var(--t-fast) var(--ease); }
.dd-sub.open > .dd-sub-toggle .chev { transform: rotate(-90deg); }

.dd-sub-panel {
  position: absolute;
  top: -8px;
  left: calc(100% + 4px);
  min-width: 246px;
  padding: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateX(6px);
  transition:
    opacity var(--t-fast) var(--ease),
    transform var(--t-fast) var(--ease),
    visibility var(--t-fast);
  z-index: 211;
}

/* Hover bridge so the pointer never drops the flyout */
.dd-sub-panel::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -10px;
  width: 10px;
}

.dd-sub.open > .dd-sub-panel,
.dd-sub:focus-within > .dd-sub-panel {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.dd-sub-panel a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-600);
  white-space: nowrap;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.dd-sub-panel a:hover { background: var(--color-surface-2); color: var(--color-ink-950); }

.dd-sub-panel a[aria-current="page"] {
  color: var(--color-accent-strong);
  background: var(--color-accent-soft);
}

.dd-sub-panel a svg { width: 13px; height: 13px; color: var(--color-ink-300); flex: none; }

.header-cta { display: none; }

/* Mobile menu */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  transition: background-color var(--t-fast) var(--ease);
}

.nav-toggle:hover { background: var(--color-surface-2); }

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-ink-900);
  transition: transform var(--t-med) var(--ease), opacity var(--t-fast) var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 190;
  display: flex;
  flex-direction: column;
  background: var(--color-paper);
  border-top: 1px solid var(--color-line);
  padding: 12px var(--container-gutter) 32px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition:
    opacity var(--t-med) var(--ease),
    transform var(--t-med) var(--ease),
    visibility var(--t-med);
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.mobile-nav a.mobile-link {
  display: block;
  padding: 15px 4px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink-950);
  border-bottom: 1px solid var(--color-line);
}

a.mobile-link[aria-current="page"] { color: var(--color-accent); }

/* Mobile accordion groups */
.m-group { border-bottom: 1px solid var(--color-line); }

.m-group-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 15px 4px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink-950);
  text-align: left;
}

.m-group-icon {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--color-surface-2);
  color: var(--color-ink-500);
  flex: none;
  transition: transform var(--t-med) var(--ease), background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.m-group-icon svg { width: 14px; height: 14px; }

.m-group-toggle[aria-expanded="true"] .m-group-icon {
  transform: rotate(45deg);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.m-group-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--t-med) var(--ease);
}

.m-group.is-open > .m-group-panel { grid-template-rows: 1fr; }

.m-group-inner { min-height: 0; overflow: hidden; }

.m-sub-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 4px 11px 20px;
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--color-ink-600);
}

.m-sub-link:last-child { margin-bottom: 14px; }

.m-sub-link svg { width: 13px; height: 13px; color: var(--color-ink-300); flex: none; }

.m-sub-all { color: var(--color-accent); font-weight: 700; }

.m-group--nested .m-group-toggle--sub {
  padding-left: 20px;
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--color-ink-600);
}

.m-group--nested .m-sub-link { padding-left: 40px; font-size: var(--text-sm); }
.m-group--nested .m-group-toggle--sub { font-size: var(--text-sm); }
.m-group--nested .m-group-inner { margin-bottom: 0; }

.mobile-nav .mobile-cta {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--color-line);
}

.mobile-nav .mobile-cta .btn { width: 100%; }

.mobile-nav .mobile-note {
  margin-top: 18px;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-ink-400);
}

.nav-backdrop {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  z-index: 180;
  background: rgba(10, 18, 32, 0.35);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-med) var(--ease), visibility var(--t-med);
}

.nav-backdrop.is-open { opacity: 1; visibility: visible; }

body.menu-open { overflow: hidden; }

/* Breakpoint: desktop nav ↔ mobile menu */
@media (min-width: 1081px) {
  .site-nav { display: block; }
  .header-cta { display: inline-flex; }
  .nav-toggle,
  .mobile-nav,
  .nav-backdrop { display: none; }
}

@media (max-width: 420px) {
  .header-cta--desktop { display: none; }
}


/* --------------------------------------------------------------------------
   3. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(56px, 8vw, 104px) clamp(64px, 8vw, 112px);
}

/* Subtle search-grid + glow backdrop */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(62% 56% at 72% 18%, #000 25%, transparent 78%);
  mask-image: radial-gradient(62% 56% at 72% 18%, #000 25%, transparent 78%);
  opacity: 0.55;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(54% 42% at 76% 16%, rgba(47, 107, 255, 0.09), transparent 70%);
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  gap: clamp(40px, 6vw, 72px);
  align-items: center;
}

.hero-copy .eyebrow { margin-bottom: 20px; }

.hero-copy h1 { margin-bottom: 22px; }

.hero-copy .lead { margin-bottom: 34px; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.hero-note {
  margin-top: 22px;
  font-size: var(--text-xs);
  color: var(--color-ink-400);
  letter-spacing: 0.01em;
}

/* Hero visual */
.hero-visual { position: relative; }

.hero-visual::before {
  content: "";
  position: absolute;
  top: -6%;
  right: -4%;
  width: 72%;
  height: 72%;
  background: radial-gradient(closest-side, rgba(47, 107, 255, 0.16), transparent 72%);
  filter: blur(6px);
  pointer-events: none;
}

.hero-visual svg {
  position: relative;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 60px rgba(10, 18, 32, 0.10));
}

.hero-visual .float-a { animation: float-a 7s ease-in-out infinite alternate; }
.hero-visual .float-b { animation: float-b 8.5s ease-in-out infinite alternate; }

@keyframes float-a {
  from { transform: translateY(0); }
  to   { transform: translateY(-7px); }
}

@keyframes float-b {
  from { transform: translateY(0); }
  to   { transform: translateY(6px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-visual .float-a,
  .hero-visual .float-b { animation: none; }
}

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 580px; margin-inline: auto; width: 100%; }
}

@media (max-width: 560px) {
  .cta-row { flex-direction: column; align-items: stretch; }
  .cta-row .btn { width: 100%; }
  .hero-note { text-align: center; }
}


/* --------------------------------------------------------------------------
   4. Positioning / trust band
   -------------------------------------------------------------------------- */
.pos-grid { gap: clamp(28px, 4vw, 40px); }

.pos-item {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pos-item .icon-chip { margin-bottom: 2px; }

.pos-item h3 { margin-bottom: 6px; }

.pos-item p {
  font-size: var(--text-sm);
  color: var(--color-ink-500);
  max-width: 34ch;
}

.section-head--center .pos-grid { text-align: left; }


/* --------------------------------------------------------------------------
   5. Icon chip (shared by cards & features)
   -------------------------------------------------------------------------- */
.icon-chip {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-soft-2);
  color: var(--color-accent);
  flex: none;
}

.icon-chip svg { width: 22px; height: 22px; }

/* Compact variant for dense layouts */
.icon-chip--sm { width: 40px; height: 40px; border-radius: 10px; }
.icon-chip--sm svg { width: 19px; height: 19px; }


/* --------------------------------------------------------------------------
   6. Cards
   -------------------------------------------------------------------------- */
.card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 30px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition:
    transform var(--t-med) var(--ease),
    border-color var(--t-med) var(--ease),
    box-shadow var(--t-med) var(--ease);
}

.card h3 { margin-bottom: 2px; }

.card p {
  font-size: var(--text-sm);
  color: var(--color-ink-500);
  flex-grow: 1;
}

.card .link-more { margin-top: 4px; align-self: flex-start; }

.card--interactive:hover {
  transform: translateY(-4px);
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-lg);
}

.card--interactive:focus-within {
  border-color: var(--color-accent-soft-2);
  box-shadow: var(--shadow-md);
}

/* Stretched-link pattern: the whole card is clickable via the Learn More link */
@media (hover: hover) {
  .card--stretched .link-more::after {
    content: "";
    position: absolute;
    inset: 0;
  }
}

.card--stretched { position: relative; }


/* --------------------------------------------------------------------------
   7. Why section (split layout)
   -------------------------------------------------------------------------- */
.why-side h2 { margin-bottom: 18px; }

.why-side .lead { margin-bottom: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.feature-block {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition:
    transform var(--t-med) var(--ease),
    border-color var(--t-med) var(--ease),
    box-shadow var(--t-med) var(--ease);
}

.feature-block:hover {
  transform: translateY(-3px);
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-md);
}

.feature-block h3 { font-size: 1.0625rem; margin-bottom: 0; }

.feature-block p {
  font-size: var(--text-sm);
  color: var(--color-ink-500);
}

@media (max-width: 1024px) {
  .split { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .feature-grid { grid-template-columns: 1fr; }
}


/* --------------------------------------------------------------------------
   8. Process
   -------------------------------------------------------------------------- */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px;
  padding-top: 26px;
}

.steps::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--color-line);
}

.step { position: relative; }

.step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-paper);
  border: 2px solid var(--color-line-strong);
}

.step:first-child::before {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}

.step-num {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.step-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-900);
  margin-bottom: 10px;
}

.step p {
  font-size: var(--text-sm);
  color: var(--color-ink-500);
  max-width: 30ch;
}

.step-arrow {
  position: absolute;
  top: -12px;
  right: -28px;
  width: 16px;
  height: 16px;
  color: var(--color-ink-300);
  display: none;
}

@media (min-width: 1001px) {
  .step-arrow { display: block; }
}

@media (max-width: 1000px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 48px; }
}

@media (max-width: 560px) {
  .steps { grid-template-columns: 1fr; row-gap: 40px; }
}


/* --------------------------------------------------------------------------
   9. Case study placeholders
   -------------------------------------------------------------------------- */
.case-card {
  display: flex;
  flex-direction: column;
  gap: 46px;
  padding: 30px;
  background: var(--color-surface);
  border: 1px dashed var(--color-line-strong);
  border-radius: var(--radius-lg);
  min-height: 240px;
  transition: border-color var(--t-med) var(--ease), background-color var(--t-med) var(--ease);
}

.case-card:hover { border-color: var(--color-accent-soft-2); background: var(--color-surface-2); }

.case-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.case-card .icon-chip { color: var(--color-ink-400); background: var(--color-surface-3); border-color: transparent; }

.case-card .chip { flex: none; }

.case-card h3 { margin-bottom: 8px; }

.case-card p {
  font-size: var(--text-sm);
  color: var(--color-ink-500);
}

/* Small status chip */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-soft-2);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
  white-space: nowrap;
}

.chip--neutral {
  background: var(--color-surface-3);
  border-color: var(--color-line);
  color: var(--color-ink-500);
}


/* --------------------------------------------------------------------------
   10. Blog / resource cards
   -------------------------------------------------------------------------- */
.post-card .chip { align-self: flex-start; margin-bottom: 2px; }

.post-card h3 { font-size: 1.1875rem; margin-bottom: 2px; }

.post-card p { margin-bottom: 6px; }


/* --------------------------------------------------------------------------
   11. Final CTA panel
   -------------------------------------------------------------------------- */
.cta-section { padding-bottom: clamp(80px, 9vw, 128px); }

.cta-panel {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: clamp(48px, 8vw, 92px) clamp(24px, 6vw, 88px);
  background: var(--color-night);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-night-line);
  color: var(--color-night-muted);
}

/* Navy grid texture */
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(72% 90% at 50% 0%, #000 20%, transparent 80%);
  mask-image: radial-gradient(72% 90% at 50% 0%, #000 20%, transparent 80%);
  pointer-events: none;
}

/* Accent glow */
.cta-panel::after {
  content: "";
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 640px;
  height: 420px;
  background: radial-gradient(closest-side, rgba(47, 107, 255, 0.28), transparent 72%);
  pointer-events: none;
}

.cta-panel > * { position: relative; z-index: 1; }

.cta-panel h2 {
  color: #fff;
  max-width: 640px;
  margin: 0 auto 18px;
}

.cta-panel p { max-width: 520px; margin: 0 auto; font-size: var(--text-lead); line-height: 1.7; }

.cta-panel .cta-row {
  justify-content: center;
  margin-top: 34px;
}

.cta-note {
  margin-top: 22px;
  font-size: var(--text-sm);
  color: var(--color-night-muted-2);
}

.cta-note a {
  color: var(--color-night-text);
  font-weight: 700;
  border-bottom: 1px solid var(--color-night-line-strong);
  transition: border-color var(--t-fast) var(--ease);
}

.cta-note a:hover { border-color: var(--color-accent); }


/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-night);
  color: var(--color-night-muted);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 320px;
  background: radial-gradient(closest-side, rgba(47, 107, 255, 0.14), transparent 72%);
  pointer-events: none;
}

.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) repeat(4, minmax(0, 1fr));
  gap: clamp(36px, 5vw, 56px);
  padding-block: clamp(56px, 7vw, 84px) clamp(40px, 5vw, 64px);
}

.footer-brand .brand-logo { height: 30px; }

.footer-desc {
  margin-top: 20px;
  font-size: var(--text-sm);
  max-width: 30ch;
  color: var(--color-night-muted);
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 26px;
}

.social-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--color-night-line);
  border-radius: 9px;
  color: var(--color-night-muted);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.social-btn:hover {
  color: #fff;
  border-color: var(--color-night-line-strong);
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-2px);
}

.social-btn svg { width: 17px; height: 17px; }

.footer-col h3 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--color-night-muted-2);
  margin-bottom: 20px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 2px; }

.footer-col a {
  display: inline-block;
  padding: 6px 0;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-night-muted);
  transition: color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.footer-col a:hover { color: #fff; transform: translateX(2px); }

.footer-bottom {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  flex-wrap: wrap;
  padding-block: 24px;
  border-top: 1px solid var(--color-night-line);
  font-size: var(--text-xs);
  color: var(--color-night-muted-2);
}

.footer-bottom-tagline { letter-spacing: 0.02em; }

@media (max-width: 1000px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}


/* --------------------------------------------------------------------------
   13. Toast (placeholder links)
   -------------------------------------------------------------------------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 16px);
  z-index: 400;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: min(92vw, 420px);
  padding: 13px 20px;
  background: var(--color-ink-950);
  color: var(--color-night-text);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid var(--color-night-line-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-med) var(--ease), transform var(--t-med) var(--ease), visibility var(--t-med);
}

.toast.is-visible { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

.toast svg { width: 17px; height: 17px; color: #8FB2FF; flex: none; }


/* --------------------------------------------------------------------------
   14. Page-level components (services & inner pages)
   -------------------------------------------------------------------------- */

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
  font-size: var(--text-sm);
  color: var(--color-ink-400);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.breadcrumbs li { display: flex; align-items: center; gap: 8px; min-width: 0; }

.breadcrumbs a {
  color: var(--color-ink-500);
  font-weight: 600;
  transition: color var(--t-fast) var(--ease);
}

.breadcrumbs a:hover { color: var(--color-ink-950); }

.breadcrumbs svg { width: 12px; height: 12px; color: var(--color-ink-300); flex: none; }

.breadcrumbs [aria-current="page"] {
  color: var(--color-ink-900);
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 32ch;
}

/* Page hero (inner pages) — same design language, single column */
.hero--page { padding-block: clamp(44px, 6vw, 88px) clamp(56px, 7vw, 88px); }

.hero--page .hero-copy { max-width: 780px; }

.hero--page .hero-copy h1 { max-width: 18ch; }

.hero--page::before { -webkit-mask-image: radial-gradient(58% 62% at 22% 12%, #000 25%, transparent 78%); mask-image: radial-gradient(58% 62% at 22% 12%, #000 25%, transparent 78%); }
.hero--page::after { background: radial-gradient(40% 34% at 18% 8%, rgba(47, 107, 255, 0.08), transparent 70%); }

/* Two-column feature list (what we do) */
.plain-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(32px, 5vw, 64px);
}

.plain-item {
  display: flex;
  gap: 18px;
  padding: 24px 0;
  border-top: 1px solid var(--color-line);
}

.plain-item .icon-chip--sm { margin-top: 3px; }

.plain-item h3 { font-size: 1.0625rem; margin-bottom: 6px; }

.plain-item p { font-size: var(--text-sm); color: var(--color-ink-500); max-width: 44ch; }

@media (max-width: 680px) {
  .plain-list { grid-template-columns: 1fr; }
}

/* Check list (what you can expect) */
.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 32px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: var(--text-sm);
  color: var(--color-ink-600);
}

.check-item svg { width: 17px; height: 17px; color: var(--color-accent); flex: none; margin-top: 4px; }

.check-item strong { color: var(--color-ink-900); }

@media (max-width: 680px) {
  .check-list { grid-template-columns: 1fr; }
}

/* Accordion cards (FAQ) — native <details>, zero JS */
.faq {
  max-width: 820px;
  margin-inline: auto;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.faq-item + .faq-item { margin-top: 12px; }

.faq-item[open] { border-color: var(--color-accent-soft-2); box-shadow: var(--shadow-xs); }

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 22px;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-ink-950);
  text-align: left;
  cursor: pointer;
  list-style: none;
}

.faq-q::-webkit-details-marker { display: none; }

.faq-q .faq-icon {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-surface-2);
  color: var(--color-ink-500);
  flex: none;
  transition: transform var(--t-med) var(--ease), background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.faq-q .faq-icon svg { width: 13px; height: 13px; }

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.faq-a { padding: 0 22px 20px; }

.faq-a p { font-size: var(--text-sm); color: var(--color-ink-500); max-width: 64ch; }

/* Related-services links */
.related-strip {
  margin-top: clamp(52px, 7vw, 84px);
  padding-top: 30px;
  border-top: 1px solid var(--color-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}

.related-strip .related-label {
  width: 100%;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--color-ink-400);
  margin-bottom: 4px;
}

.pill-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-ink-600);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.pill-link svg { width: 13px; height: 13px; transition: transform var(--t-fast) var(--ease); }

.pill-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-soft);
  transform: translateY(-1px);
}

.pill-link:hover svg { transform: translateX(2px); }

/* Highlighted "how services work together" cards reuse .card */
.card .chip { align-self: flex-start; margin-bottom: 2px; }

/* Featured placeholder (case studies page) */
.case-card--feature {
  min-height: 0;
  gap: 28px;
  padding: clamp(32px, 5vw, 56px);
  align-items: flex-start;
}

.case-card--feature .case-card-top { width: 100%; }

@media (min-width: 900px) {
  .case-card--feature {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
  }
  .case-card--feature .case-card-top { width: auto; flex: none; justify-content: flex-start; }
  .case-card--feature > div:last-child { max-width: 56ch; }
}

/* --------------------------------------------------------------------------
   15. Forms (contact page)
   -------------------------------------------------------------------------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }

.field label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-ink-900);
}

.field label .req { color: var(--color-error); }

.field .optional-tag {
  font-weight: 500;
  color: var(--color-ink-400);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-family: inherit;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-900);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  appearance: none;
}

.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%237C8BA1' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

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

.field input::placeholder,
.field textarea::placeholder { color: var(--color-ink-400); }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.field[data-invalid="true"] input,
.field[data-invalid="true"] select,
.field[data-invalid="true"] textarea {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-soft);
}

.field .error-msg {
  display: none;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-error);
}

.field[data-invalid="true"] .error-msg { display: block; }

.field .field-hint { font-size: var(--text-xs); color: var(--color-ink-400); }

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.form-actions .form-privacy {
  font-size: var(--text-xs);
  color: var(--color-ink-400);
  max-width: 36ch;
}

@media (max-width: 620px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-actions { flex-direction: column; align-items: stretch; }
  .form-actions .btn { width: 100%; }
}

/* Honest "frontend only" confirmation panel */
.form-panel {
  margin-top: 20px;
  padding: 20px 22px;
  border: 1px solid var(--color-accent-soft-2);
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  display: none;
}

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

.form-panel .form-panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-ink-950);
  margin-bottom: 8px;
}

.form-panel .form-panel-title svg { width: 18px; height: 18px; color: var(--color-accent-strong); flex: none; }

.form-panel p { font-size: var(--text-sm); color: var(--color-ink-600); margin-bottom: 14px; }

.form-panel .btn { margin-right: 10px; }

.form-panel .form-panel-email { font-weight: 700; }

/* Spam honeypot — visually removed, kept in the DOM for bots only.
   The INPUT is absolutely positioned (the classic bot-catching pattern);
   the wrapper is the positioned ancestor so both sit far off-screen. */
[data-contact-form] { position: relative; }
.hp-field,
.hp-field input {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Submission in flight */
.btn[aria-busy="true"] { opacity: 0.72; cursor: progress; }

/* Honest failure states (rate-limited / backend error) */
.form-panel--error {
  border-color: var(--color-error);
  background: var(--color-error-soft);
}
.form-panel--error .form-panel-title { color: var(--color-error); }
.form-panel--error .form-panel-title svg { color: var(--color-error); }
.form-panel--error p { color: var(--color-ink-950); }

/* Contact info card */
.contact-card { gap: 20px; }

.contact-card .contact-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-accent);
  overflow-wrap: anywhere;
}

.contact-card .contact-line svg { width: 20px; height: 20px; flex: none; color: var(--color-accent); }

.contact-card .contact-line:hover { color: var(--color-accent-strong); text-decoration: underline; text-underline-offset: 4px; }

/* --------------------------------------------------------------------------
   16. Nav fit safety — 7 items + CTA between 1081px and 1260px
   -------------------------------------------------------------------------- */
@media (min-width: 1081px) and (max-width: 1260px) {
  .nav-link { padding: 9px 9px; font-size: 0.875rem; }
  .nav-list { gap: 0; }
  .header-inner { gap: 12px; }
}


/* --------------------------------------------------------------------------
   17. Blog & editorial (Stage 4)
   -------------------------------------------------------------------------- */

/* Post cards (blog lists, category archives, related) */
.post-card .chip { align-self: flex-start; margin-bottom: 2px; }

.post-card h3 { font-size: 1.1875rem; margin-bottom: 2px; }

.post-card p { margin-bottom: 0; }

.post-meta {
  font-size: var(--text-xs);
  color: var(--color-ink-400);
  letter-spacing: 0.01em;
  margin-top: 2px;
  flex: none;
}

.post-card--featured {
  padding: clamp(30px, 5vw, 48px);
  gap: 18px;
  background: var(--color-surface-2);
  border-color: var(--color-line-strong);
}

.post-card--featured h3 { font-size: clamp(1.4rem, 1.15rem + 1.2vw, 1.875rem); line-height: 1.2; max-width: 24ch; }

.post-card--featured p { max-width: 62ch; font-size: var(--text-body); }

/* Article page layout */
.article-section { padding-top: clamp(40px, 6vw, 64px); }

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 264px) minmax(0, 1fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: start;
}

.toc-col {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  align-self: start;
}

.toc-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 18px 20px;
}

.toc-toggle {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-500);
}

.toc-toggle::-webkit-details-marker { display: none; }

.toc-toggle::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-ink-400);
  border-bottom: 2px solid var(--color-ink-400);
  transform: rotate(45deg);
  transition: transform var(--t-med) var(--ease);
  flex: none;
}

.toc-card[open] .toc-toggle::after { transform: rotate(-135deg); }

.toc-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 52vh;
  overflow-y: auto;
}

.toc-list a {
  display: block;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-500);
  transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.toc-list a:hover {
  color: var(--color-ink-950);
  background: var(--color-surface-2);
}

/* Article byline */
.article-byline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
  font-size: var(--text-sm);
  color: var(--color-ink-500);
  max-width: none;
}

.article-byline .byline-author { font-weight: 700; color: var(--color-ink-900); }

.article-byline .byline-dot { color: var(--color-ink-300); }

/* Article body typography — prioritise readability */
.article-body {
  max-width: 72ch;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--color-ink-600);
}

.article-body > p { max-width: none; margin: 0 0 22px; }

.article-body > h2,
.article-body > h3,
.article-body > ol,
.article-body > ul,
.article-body > details { margin-top: 0; }

.article-body h2 {
  font-size: clamp(1.45rem, 1.25rem + 0.9vw, 1.75rem);
  margin: 48px 0 18px;
  letter-spacing: -0.02em;
}

.article-body h3 {
  font-size: 1.1875rem;
  margin: 34px 0 12px;
}

.article-body :is(h2, h3) { scroll-margin-top: calc(var(--header-h) + 24px); }

.article-body ul,
.article-body ol {
  padding-left: 22px;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.article-body li { padding-left: 4px; }

.article-body li::marker { color: var(--color-accent); font-weight: 700; }

.article-body a:not(.btn):not(.pill-link) {
  color: var(--color-accent);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-soft-2);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--t-fast) var(--ease);
}

.article-body a:not(.btn):not(.pill-link):hover {
  text-decoration-color: var(--color-accent);
}

.article-body .faq-item { margin: 12px 0; }
.article-body .faq-item .faq-a p { max-width: none; }

/* Figures & captions (optional in article bodies) */
.article-body figure {
  margin: 32px 0;
  padding: 18px 18px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.article-body figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
}

.article-body figcaption {
  margin-top: 12px;
  font-size: var(--text-sm);
  color: var(--color-ink-400);
}

/* Inline service CTA inside an article */
.article-cta {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-top: 44px;
  padding: 26px 28px;
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-soft-2);
  border-radius: var(--radius-lg);
}

.article-cta-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-accent);
  flex: none;
}

.article-cta-icon svg { width: 22px; height: 22px; }

.article-cta-text {
  font-weight: 700;
  color: var(--color-ink-950);
  font-size: 1.0625rem;
  margin-bottom: 14px;
  max-width: 46ch;
}

/* Category empty state (honest) */
.empty-state {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  padding: clamp(28px, 5vw, 48px);
  border: 1px dashed var(--color-line-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.empty-state h3 { margin-bottom: 8px; }

.empty-state p { font-size: var(--text-sm); color: var(--color-ink-500); max-width: 52ch; }

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .toc-col { position: static; }
  .toc-list { max-height: none; }
}

@media (max-width: 620px) {
  .article-cta { flex-direction: column; }
  .article-cta .btn { width: 100%; }
  .article-body { font-size: 1rem; }
}