/* ============================================================================
   COMPONENTS — header, mega-menu, buttons, cards, metrics, tabs, carousel,
   forms, footer. Every component reads semantic tokens only, so dropping it
   onto .surface-dark or .surface-paper re-themes it with no extra CSS.
   ========================================================================== */

/* ══════════════════════════════════════════════════════════════════════════
   ICON SPRITE
   ══════════════════════════════════════════════════════════════════════════ */
.icon {
  inline-size: 1.25em;
  block-size: 1.25em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon--sm { inline-size: 1em; block-size: 1em; }
.icon--lg { inline-size: 1.75em; block-size: 1.75em; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* ══════════════════════════════════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════════════════════════════════ */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  --btn-line: var(--line-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-3);
  padding: 0.875rem 1.5rem;
  min-block-size: 3rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-line);
  border-radius: var(--r-sm);
  font-family: var(--cn-font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  letter-spacing: 0.005em;
  text-align: center;
  cursor: pointer;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transition: color var(--dur-2) var(--ease-out),
              border-color var(--dur-2) var(--ease-out),
              background-color var(--dur-2) var(--ease-out),
              transform var(--dur-1) var(--ease-out);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

/* The sweep: a pseudo-element wipes in from the left on hover. This is the
   "refined border micro-interaction" of the reference language. */
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--btn-sweep, var(--cn-accent));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-3) var(--ease-out);
}
.btn:hover::before, .btn:focus-visible::before { transform: scaleX(1); }

.btn .icon {
  transition: transform var(--dur-2) var(--ease-out);
}
.btn:hover .icon--arrow { transform: translateX(4px); }

/* Primary — accent fill, inverts on hover */
.btn--primary {
  --btn-bg: var(--cn-accent);
  --btn-fg: var(--cn-ink-deep);
  --btn-line: var(--cn-accent);
  --btn-sweep: var(--cn-ink-deep);
}
.btn--primary:hover, .btn--primary:focus-visible {
  --btn-fg: var(--cn-accent);
  --btn-line: var(--cn-ink-deep);
}
.surface-dark .btn--primary:hover, .surface-dark .btn--primary:focus-visible {
  --btn-sweep: var(--cn-paper);
  --btn-fg: var(--cn-ink-deep);
  --btn-line: var(--cn-paper);
}

/* Secondary — outlined, fills with accent */
.btn--secondary {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  --btn-line: var(--line-strong);
  --btn-sweep: var(--cn-accent);
}
.btn--secondary:hover, .btn--secondary:focus-visible {
  --btn-fg: var(--cn-ink-deep);
  --btn-line: var(--cn-accent);
}

/* Solid ink — for use on light surfaces */
.btn--ink {
  --btn-bg: var(--cn-ink);
  --btn-fg: var(--cn-text-on-dark);
  --btn-line: var(--cn-ink);
  --btn-sweep: var(--cn-accent);
}
.btn--ink:hover, .btn--ink:focus-visible {
  --btn-fg: var(--cn-ink-deep);
  --btn-line: var(--cn-accent);
}

/* Ghost / text link with animated rule */
.btn--ghost {
  --btn-line: transparent;
  padding-inline: 0;
  min-block-size: auto;
  padding-block: var(--s-2);
  color: var(--accent-text);
}
.btn--ghost::before { display: none; }
.btn--ghost::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  inline-size: 100%;
  block-size: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-3) var(--ease-out);
}
.btn--ghost:hover::after, .btn--ghost:focus-visible::after { transform: scaleX(1); }

.btn--sm { padding: 0.625rem 1.125rem; min-block-size: 2.5rem; font-size: var(--fs-xs); }
.btn--lg { padding: 1.0625rem 2rem; min-block-size: 3.5rem; font-size: var(--fs-body); }
.btn--block { width: 100%; }

/* ══════════════════════════════════════════════════════════════════════════
   BADGES / PILLS
   ══════════════════════════════════════════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--cn-accent-veil);
  font-family: var(--cn-font-mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-med);
  letter-spacing: 0.04em;
  color: var(--text-muted);
  /* Badges started life as short pills ("ISO 27001") where nowrap is right.
     Pages then began using them for sentence-length statements, which at
     nowrap grew past a 375px viewport and had their tails clipped by
     body{overflow-x:hidden}. Wrapping is the safe default; opt into nowrap
     with .badge--nowrap when the label is genuinely short. */
  max-inline-size: 100%;
  text-wrap: pretty;
}

/* Short pills that must never break, e.g. a version or a standard number. */
.badge--nowrap { white-space: nowrap; }
.badge--accent { border-color: var(--cn-accent); color: var(--accent-text); }
.badge--bare { background: none; }

.badge__dot {
  inline-size: 6px; block-size: 6px;
  border-radius: 50%;
  background: var(--cn-accent);
  flex: none;
  align-self: center;
}
.badge__dot--live { animation: cn-pulse 2.4s var(--ease-in-out) infinite; }
@keyframes cn-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--cn-accent-glow); }
  50%      { opacity: 0.7; box-shadow: 0 0 0 5px transparent; }
}

/* ══════════════════════════════════════════════════════════════════════════
   HEADER — sticky, glass, shrinks on scroll
   ══════════════════════════════════════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: transparent;
  transition: background-color var(--dur-2) var(--ease-out),
              border-color var(--dur-2) var(--ease-out),
              backdrop-filter var(--dur-2) var(--ease-out);
  border-bottom: 1px solid transparent;
}

/* Header always renders dark chrome so it reads over the dark hero, then
   switches to glass once the page scrolls. */
.site-header {
  --hdr-fg: var(--cn-text-on-dark);
  --hdr-line: rgba(247, 249, 250, 0.14);
  color: var(--hdr-fg);
}

.site-header.is-stuck {
  background: var(--cn-ink-deep);
  border-bottom-color: var(--hdr-line);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  background: color-mix(in srgb, var(--cn-ink-deep) 82%, transparent);
}

/* Pages without a dark hero opt in to a light header via this class. */
.site-header--solid {
  --hdr-fg: var(--text);
  --hdr-line: var(--line);
  background: var(--surface);
  border-bottom-color: var(--line);
}
.site-header--solid.is-stuck { background: var(--glass-bg); }

.header__bar {
  display: flex;
  align-items: center;
  gap: var(--s-7);
  min-block-size: var(--header-h);
  padding-inline: var(--gutter);
  max-width: var(--container-wide);
  margin-inline: auto;
}

/* ── Brand lockup ────────────────────────────────────────────────────────── */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  color: inherit;
  flex: none;
  padding-block: var(--s-2);
}
.brand:hover { text-decoration: none; }
.brand__mark { inline-size: 30px; block-size: 30px; flex: none; }
.brand__word {
  font-family: var(--cn-font-display);
  font-size: 1.0625rem;
  font-weight: var(--fw-black);
  letter-spacing: -0.025em;
  line-height: 1;
  white-space: nowrap;
}
.brand__word em {
  font-style: normal;
  font-weight: var(--fw-light);
  opacity: 0.75;
}
.brand__logo-img { block-size: var(--logo-h, 30px); width: auto; }

/* ── Primary nav ─────────────────────────────────────────────────────────── */
.nav { display: flex; align-items: center; gap: var(--s-1); margin-left: auto; }
@media (max-width: 1079px) { .nav { display: none; } }

.nav__item { position: relative; }

.nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-3) var(--s-4);
  color: inherit;
  font-size: var(--fs-sm);
  font-weight: var(--fw-med);
  letter-spacing: -0.004em;
  border-radius: var(--r-sm);
  white-space: nowrap;
  position: relative;
  background: none;
  transition: opacity var(--dur-1) var(--ease-out);
}
.nav__link:hover { text-decoration: none; opacity: 0.72; }

/* Underline indicator */
.nav__link::after {
  content: '';
  position: absolute;
  left: var(--s-4); right: var(--s-4);
  bottom: 0.25rem;
  block-size: 1.5px;
  background: var(--cn-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-2) var(--ease-out);
}
.nav__link[aria-expanded='true']::after,
.nav__link[aria-current='page']::after { transform: scaleX(1); }
.nav__link[aria-expanded='true'] { opacity: 1; }

.nav__caret {
  inline-size: 0.75em; block-size: 0.75em;
  transition: transform var(--dur-2) var(--ease-out);
  opacity: 0.6;
}
.nav__link[aria-expanded='true'] .nav__caret { transform: rotate(180deg); opacity: 1; }

.header__actions { display: flex; align-items: center; gap: var(--s-3); flex: none; }
@media (max-width: 1079px) { .header__actions .btn { display: none; } }

/* ── Theme toggle ────────────────────────────────────────────────────────── */
.theme-toggle {
  display: inline-grid;
  place-items: center;
  inline-size: 2.5rem; block-size: 2.5rem;
  border: 1px solid var(--hdr-line, var(--line));
  border-radius: var(--r-sm);
  color: inherit;
  transition: border-color var(--dur-2) var(--ease-out), background-color var(--dur-2) var(--ease-out);
}
.theme-toggle:hover { border-color: var(--cn-accent); background: var(--cn-accent-veil); }
.theme-toggle .icon--moon { display: none; }
:root[data-theme='dark'] .theme-toggle .icon--sun { display: none; }
:root[data-theme='dark'] .theme-toggle .icon--moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .theme-toggle .icon--sun { display: none; }
  :root:not([data-theme='light']) .theme-toggle .icon--moon { display: block; }
}

/* ── Burger ──────────────────────────────────────────────────────────────── */
.burger {
  display: none;
  place-items: center;
  inline-size: 2.75rem; block-size: 2.5rem;
  border: 1px solid var(--hdr-line, var(--line));
  border-radius: var(--r-sm);
  color: inherit;
}
@media (max-width: 1079px) { .burger { display: inline-grid; } }
.burger__box { inline-size: 18px; block-size: 12px; position: relative; }
.burger__box span {
  position: absolute;
  left: 0;
  inline-size: 100%;
  block-size: 1.5px;
  background: currentColor;
  transition: transform var(--dur-2) var(--ease-out), opacity var(--dur-1) var(--ease-out);
}
.burger__box span:nth-child(1) { top: 0; }
.burger__box span:nth-child(2) { top: 50%; translate: 0 -50%; }
.burger__box span:nth-child(3) { bottom: 0; }
.burger[aria-expanded='true'] .burger__box span:nth-child(1) { transform: translateY(5.25px) rotate(45deg); }
.burger[aria-expanded='true'] .burger__box span:nth-child(2) { opacity: 0; }
.burger[aria-expanded='true'] .burger__box span:nth-child(3) { transform: translateY(-5.25px) rotate(-45deg); }

/* ══════════════════════════════════════════════════════════════════════════
   MEGA-MENU
   ══════════════════════════════════════════════════════════════════════════ */
.mega {
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  z-index: var(--z-mega);
  background: var(--cn-ink-deep);
  border-top: 1px solid rgba(247, 249, 250, 0.12);
  border-bottom: 1px solid rgba(247, 249, 250, 0.12);
  color: var(--cn-text-on-dark);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.42);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--dur-2) var(--ease-out),
              transform var(--dur-3) var(--ease-out),
              visibility var(--dur-2) linear;
}
.mega[data-open='true'] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
@media (max-width: 1079px) { .mega { display: none; } }

.mega__inner {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 9fr);
  gap: clamp(2rem, 1rem + 3vw, 4.5rem);
  max-width: var(--container-wide);
  margin-inline: auto;
  padding: clamp(2rem, 1.2rem + 2vw, 3.25rem) var(--gutter) clamp(2rem, 1.2rem + 2vw, 3rem);
}

/* Left rail — the category framing */
.mega__rail { display: flex; flex-direction: column; gap: var(--s-5); }
.mega__rail .eyebrow { color: var(--cn-accent); margin-bottom: 0; }
.mega__rail-title {
  font-family: var(--cn-font-display);
  font-size: clamp(1.375rem, 1.1rem + 1vw, 1.875rem);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tr-display);
  line-height: 1.12;
  margin: 0;
}
.mega__rail-copy {
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
  color: rgba(247, 249, 250, 0.66);
  margin: 0;
  max-width: 34ch;
}
.mega__rail-cta { margin-top: auto; }

/* Right — the item grid */
.mega__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(238px, 1fr));
  gap: 1px;
  background: rgba(247, 249, 250, 0.1);
  border: 1px solid rgba(247, 249, 250, 0.1);
  border-radius: var(--r-sm);
  overflow: hidden;
}

.mega__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: var(--s-4);
  row-gap: var(--s-2);
  padding: var(--s-5);
  background: var(--cn-ink-deep);
  color: inherit;
  position: relative;
  transition: background-color var(--dur-2) var(--ease-out);
}
.mega__link:hover, .mega__link:focus-visible {
  text-decoration: none;
  background: var(--cn-ink-raised);
}
/* Accent rule slides down the left edge on hover */
.mega__link::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  inline-size: 2px;
  background: var(--cn-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur-2) var(--ease-out);
}
.mega__link:hover::before, .mega__link:focus-visible::before { transform: scaleY(1); }

.mega__icon {
  grid-row: 1 / span 2;
  display: grid;
  place-items: center;
  inline-size: 2.5rem; block-size: 2.5rem;
  border: 1px solid rgba(247, 249, 250, 0.14);
  border-radius: var(--r-sm);
  background: rgba(247, 249, 250, 0.03);
  color: var(--cn-accent);
  transition: border-color var(--dur-2) var(--ease-out), background-color var(--dur-2) var(--ease-out);
}
.mega__link:hover .mega__icon { border-color: var(--cn-accent); background: var(--cn-accent-veil); }
.mega__icon .icon { inline-size: 1.25rem; block-size: 1.25rem; }

/* Seven solutions in a three-column grid leaves one orphan cell. The eighth
   tile is a CTA that spans the remainder, so the grid always reads complete. */
.mega__link--wide { grid-column: span 2; }
.mega__link--wide .mega__icon { border-color: var(--cn-accent); background: var(--cn-accent-veil); }
@media (max-width: 620px) { .mega__link--wide { grid-column: span 1; } }

.mega__label {
  font-family: var(--cn-font-display);
  font-size: var(--fs-h4);
  font-weight: var(--fw-semi);
  letter-spacing: -0.012em;
  line-height: 1.25;
  margin: 0;
  align-self: end;
}
.mega__desc {
  font-size: var(--fs-xs);
  line-height: 1.5;
  color: rgba(247, 249, 250, 0.6);
  margin: 0;
  align-self: start;
}

/* Footer strip inside the panel */
.mega__foot {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-6);
  align-items: center;
  justify-content: space-between;
  padding-top: var(--s-6);
  margin-top: var(--s-2);
  border-top: 1px solid rgba(247, 249, 250, 0.1);
  font-size: var(--fs-sm);
  color: rgba(247, 249, 250, 0.66);
}

/* Scrim behind an open panel */
.mega-scrim {
  position: fixed;
  inset: var(--header-h) 0 0;
  z-index: calc(var(--z-mega) - 1);
  background: rgba(7, 9, 12, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-2) var(--ease-out), visibility var(--dur-2) linear;
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}
.mega-scrim[data-open='true'] { opacity: 1; visibility: visible; }
@media (max-width: 1079px) { .mega-scrim { display: none; } }

/* ══════════════════════════════════════════════════════════════════════════
   MOBILE DRAWER
   ══════════════════════════════════════════════════════════════════════════ */
.drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-drawer);
  background: var(--cn-ink-deep);
  color: var(--cn-text-on-dark);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--dur-3) var(--ease-out), visibility var(--dur-3) linear;
  visibility: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.drawer[data-open='true'] { transform: translateX(0); visibility: visible; }
@media (min-width: 1080px) { .drawer { display: none; } }

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  min-block-size: var(--header-h);
  padding-inline: var(--gutter);
  border-bottom: 1px solid rgba(247, 249, 250, 0.12);
  flex: none;
}
.drawer__close {
  display: inline-grid;
  place-items: center;
  inline-size: 2.5rem; block-size: 2.5rem;
  border: 1px solid rgba(247, 249, 250, 0.16);
  border-radius: var(--r-sm);
  color: inherit;
}
.drawer__close:hover { border-color: var(--cn-accent); }

.drawer__body { padding: var(--s-6) var(--gutter) var(--s-10); flex: 1; }

.acc { border-bottom: 1px solid rgba(247, 249, 250, 0.12); }
.acc__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  width: 100%;
  padding: var(--s-5) 0;
  color: inherit;
  font-family: var(--cn-font-display);
  font-size: 1.25rem;
  font-weight: var(--fw-semi);
  letter-spacing: -0.018em;
  text-align: left;
}
.acc__trigger .icon { transition: transform var(--dur-2) var(--ease-out); opacity: 0.6; }
.acc__trigger[aria-expanded='true'] .icon { transform: rotate(180deg); opacity: 1; }
.acc__panel { display: none; padding-bottom: var(--s-5); }
.acc__panel[data-open='true'] { display: block; }

.acc__link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-4);
  align-items: center;
  padding: var(--s-4) 0;
  color: inherit;
  border-top: 1px solid rgba(247, 249, 250, 0.07);
}
.acc__link:hover { text-decoration: none; color: var(--cn-accent); }
.acc__link .mega__icon { inline-size: 2.25rem; block-size: 2.25rem; }
.acc__link-label { font-weight: var(--fw-med); font-size: var(--fs-sm); }
.acc__link-desc { font-size: var(--fs-xs); color: rgba(247, 249, 250, 0.55); display: block; margin-top: 2px; }

.drawer__flat {
  display: block;
  padding: var(--s-5) 0;
  border-bottom: 1px solid rgba(247, 249, 250, 0.12);
  color: inherit;
  font-family: var(--cn-font-display);
  font-size: 1.25rem;
  font-weight: var(--fw-semi);
  letter-spacing: -0.018em;
}
.drawer__flat:hover { text-decoration: none; color: var(--cn-accent); }

.drawer__actions { display: grid; gap: var(--s-3); margin-top: var(--s-8); }
.drawer__meta {
  margin-top: var(--s-8);
  padding-top: var(--s-6);
  border-top: 1px solid rgba(247, 249, 250, 0.12);
  font-size: var(--fs-sm);
  color: rgba(247, 249, 250, 0.6);
}

/* ══════════════════════════════════════════════════════════════════════════
   CARDS
   ══════════════════════════════════════════════════════════════════════════ */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding: clamp(1.5rem, 1rem + 1.2vw, 2.25rem);
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
  isolation: isolate;
  transition: border-color var(--dur-2) var(--ease-out),
              transform var(--dur-3) var(--ease-out),
              box-shadow var(--dur-3) var(--ease-out);
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--shadow-2); }

/* Accent wash blooms from the top-left on hover */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(120% 90% at 0% 0%, var(--cn-accent-veil) 0%, transparent 62%);
  opacity: 0;
  transition: opacity var(--dur-3) var(--ease-out);
}
.card:hover::before { opacity: 1; }

/* Top hairline that draws across on hover */
.card--rule::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  inline-size: 100%;
  block-size: 2px;
  background: var(--cn-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-3) var(--ease-out);
}
.card--rule:hover::after { transform: scaleX(1); }

.card__icon {
  display: grid;
  place-items: center;
  inline-size: 3rem; block-size: 3rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--accent-text);
  background: var(--cn-accent-veil);
  flex: none;
  transition: border-color var(--dur-2) var(--ease-out), transform var(--dur-3) var(--ease-out);
}
.card:hover .card__icon { border-color: var(--cn-accent); transform: translateY(-2px); }
.card__icon .icon { inline-size: 1.5rem; block-size: 1.5rem; }

.card__title {
  font-family: var(--cn-font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-semi);
  letter-spacing: -0.016em;
  line-height: 1.2;
  margin: 0;
}
.card__title a { color: inherit; }
.card__title a:hover { text-decoration: none; }
.card__body { font-size: var(--fs-sm); line-height: var(--lh-normal); color: var(--text-muted); margin: 0; }
.card__foot { margin-top: auto; padding-top: var(--s-3); }

.card__list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s-2); }
.card__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-3);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin: 0;
}
.card__list .icon { color: var(--accent-text); margin-top: 0.3em; }

/* Whole-card click target, keeping the real link accessible */
.card--link .card__title a::after { content: ''; position: absolute; inset: 0; z-index: 1; }

/* Numbered / index cards */
.card__index {
  font-family: var(--cn-font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--text-faint);
}

/* ── Editorial card (insights) ───────────────────────────────────────────── */
.ecard {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
  block-size: 100%;
  transition: border-color var(--dur-2) var(--ease-out), transform var(--dur-3) var(--ease-out), box-shadow var(--dur-3) var(--ease-out);
}
.ecard:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--shadow-2); }

.ecard__media {
  position: relative;
  aspect-ratio: 16 / 10;
  max-width: 100%;
  overflow: hidden;
  background: var(--surface-alt);
  border-bottom: 1px solid var(--line);
}
.ecard__media img { inline-size: 100%; block-size: 100%; object-fit: cover; transition: transform var(--dur-4) var(--ease-out); }
.ecard:hover .ecard__media img { transform: scale(1.04); }
.ecard__tag {
  position: absolute;
  top: var(--s-4); left: var(--s-4);
  z-index: 2;
  padding: 0.3125rem 0.625rem;
  background: var(--cn-ink-deep);
  color: var(--cn-accent);
  border-radius: var(--r-xs);
  font-family: var(--cn-font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.ecard__body { display: flex; flex-direction: column; gap: var(--s-3); padding: clamp(1.25rem, 1rem + 0.9vw, 1.875rem); flex: 1; }
.ecard__meta {
  display: flex; flex-wrap: wrap; gap: var(--s-2);
  font-family: var(--cn-font-mono);
  font-size: var(--fs-xs);
  color: var(--text-faint);
  letter-spacing: 0.03em;
}
.ecard__meta span + span::before { content: '·'; margin-right: var(--s-2); opacity: 0.6; }
.ecard__title {
  font-family: var(--cn-font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-semi);
  letter-spacing: -0.018em;
  line-height: 1.18;
  margin: 0;
  text-wrap: balance;
}
.ecard__title a { color: inherit; }
.ecard__title a:hover { text-decoration: none; }
.ecard__title a::after { content: ''; position: absolute; inset: 0; z-index: 3; }
.ecard__excerpt { font-size: var(--fs-sm); line-height: var(--lh-normal); color: var(--text-muted); margin: 0; }
.ecard__foot { margin-top: auto; padding-top: var(--s-4); display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); }

/* ── Media placeholder (before real imagery lands) ───────────────────────── */
.ph {
  position: relative;
  display: grid;
  place-items: center;
  inline-size: 100%;
  block-size: 100%;
  min-block-size: 180px;
  background:
    linear-gradient(135deg, var(--cn-accent-veil) 0%, transparent 55%),
    repeating-linear-gradient(45deg, var(--line-faint) 0 1px, transparent 1px 9px),
    var(--surface-alt);
  color: var(--text-faint);
  font-family: var(--cn-font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  padding: var(--s-5);
}
.ph::after {
  content: '';
  position: absolute;
  inset: var(--s-3);
  border: 1px dashed var(--line);
  border-radius: var(--r-xs);
  pointer-events: none;
}
.ph span { position: relative; z-index: 1; max-width: 26ch; line-height: 1.5; }

/* ══════════════════════════════════════════════════════════════════════════
   METRICS
   ══════════════════════════════════════════════════════════════════════════ */
/* Explicit column counts, not auto-fit: the homepage shows six tiles, and
   auto-fit resolved to five columns plus a lone orphan on the second row.
   Three columns divide six cleanly and give long unit suffixes room. */
.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
}
@media (max-width: 1023px) { .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 599px)  { .metrics { grid-template-columns: 1fr; } }
/* Four-up variant for pages that show four metrics rather than six. */
.metrics--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1199px) { .metrics--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 599px)  { .metrics--4 { grid-template-columns: 1fr; } }
.metric {
  padding: clamp(1.75rem, 1.2rem + 1.6vw, 2.75rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.metric::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  inline-size: 100%;
  block-size: 2px;
  background: var(--cn-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-4) var(--ease-out);
}
.metric.is-visible::after { transform: scaleX(1); }

.metric__value {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;          /* a long unit wraps under the number, never clips */
  gap: 0.06em;
  min-inline-size: 0;
  font-family: var(--cn-font-display);
  font-size: var(--fs-metric);
  font-weight: var(--fw-black);
  letter-spacing: -0.045em;
  line-height: 0.92;
  margin-bottom: var(--s-4);
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.metric__suffix, .metric__prefix {
  font-size: 0.38em;
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  color: var(--accent-text);
  white-space: nowrap;
}
.metric__label {
  font-family: var(--cn-font-display);
  font-size: var(--fs-h4);
  font-weight: var(--fw-semi);
  letter-spacing: -0.01em;
  margin: 0 0 var(--s-2);
  line-height: 1.25;
}
.metric__note { font-size: var(--fs-xs); line-height: 1.55; color: var(--text-muted); margin: 0; }

/* ══════════════════════════════════════════════════════════════════════════
   TABS (solutions showcase + industry filters)
   ══════════════════════════════════════════════════════════════════════════ */
.tabs__list {
  display: flex;
  gap: var(--s-1);
  overflow-x: auto;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(2rem, 1.2rem + 2vw, 3.5rem);
  -webkit-overflow-scrolling: touch;
}
.tabs__list::-webkit-scrollbar { block-size: 3px; }
.tabs__list::-webkit-scrollbar-thumb { background: var(--line-strong); }

.tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  font-weight: var(--fw-med);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
}
.tab:hover { color: var(--text); }
.tab[aria-selected='true'] { color: var(--text); border-bottom-color: var(--cn-accent); font-weight: var(--fw-semi); }
.tab .icon { color: var(--accent-text); opacity: 0.7; }
.tab[aria-selected='true'] .icon { opacity: 1; }

.tabs__panel[hidden] { display: none; }
.tabs__panel { animation: cn-fade-up var(--dur-3) var(--ease-out) both; }
@keyframes cn-fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* ── Filter chips ────────────────────────────────────────────────────────── */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: clamp(2rem, 1.2rem + 2vw, 3rem);
}
.chip {
  padding: 0.5625rem 1.0625rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text-muted);
  font-size: var(--fs-sm);
  font-weight: var(--fw-med);
  white-space: nowrap;
  transition: all var(--dur-2) var(--ease-out);
}
.chip:hover { border-color: var(--line-strong); color: var(--text); }
.chip[aria-pressed='true'] {
  background: var(--cn-ink);
  border-color: var(--cn-ink);
  color: var(--cn-text-on-dark);
}
.surface-dark .chip[aria-pressed='true'] {
  background: var(--cn-accent);
  border-color: var(--cn-accent);
  color: var(--cn-ink-deep);
}
.chip__count { font-family: var(--cn-font-mono); font-size: 0.6875rem; opacity: 0.65; margin-left: 0.4em; }

/* Filterable item enter/exit */
.filterable { transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out); }
.filterable[data-hidden='true'] { display: none; }
.filter-empty { padding: var(--s-9) 0; text-align: center; color: var(--text-muted); }
.filter-empty[hidden] { display: none; }

/* ══════════════════════════════════════════════════════════════════════════
   CAROUSEL
   ══════════════════════════════════════════════════════════════════════════ */
.carousel { position: relative; }
.carousel__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(300px, 1fr);
  gap: clamp(1rem, 0.7rem + 1.2vw, 1.75rem);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
  padding-bottom: var(--s-2);
  overscroll-behavior-x: contain;
}
.carousel__track::-webkit-scrollbar { display: none; }
.carousel__track > * { scroll-snap-align: start; }
@media (min-width: 900px) { .carousel__track { grid-auto-columns: minmax(0, calc((100% - 2 * clamp(1rem, 0.7rem + 1.2vw, 1.75rem)) / 3)); } }

.carousel__nav { display: flex; gap: var(--s-2); }
.carousel__btn {
  display: inline-grid;
  place-items: center;
  inline-size: 2.875rem; block-size: 2.875rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  color: var(--text);
  transition: all var(--dur-2) var(--ease-out);
}
.carousel__btn:hover:not(:disabled) { background: var(--cn-accent); border-color: var(--cn-accent); color: var(--cn-ink-deep); }
.carousel__btn:disabled { opacity: 0.3; cursor: not-allowed; }

.carousel__progress { block-size: 2px; background: var(--line); margin-top: var(--s-6); position: relative; overflow: hidden; }
.carousel__progress-bar {
  position: absolute; inset-block: 0; left: 0;
  background: var(--cn-accent);
  inline-size: 33%;
  transition: transform var(--dur-3) var(--ease-out), width var(--dur-3) var(--ease-out);
}

/* ══════════════════════════════════════════════════════════════════════════
   LOGO WALL
   ══════════════════════════════════════════════════════════════════════════ */
.logowall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line-faint);
  border-block: 1px solid var(--line);
}
.logowall__cell {
  display: grid;
  place-items: center;
  padding: clamp(1.25rem, 1rem + 1vw, 2rem) var(--s-4);
  background: var(--surface);
  min-block-size: 96px;
  transition: background-color var(--dur-2) var(--ease-out);
}
.logowall__cell:hover { background: var(--surface-alt); }
.logowall__cell img { max-block-size: 30px; inline-size: auto; opacity: 0.62; filter: grayscale(1); transition: opacity var(--dur-2) var(--ease-out), filter var(--dur-2) var(--ease-out); }
.logowall__cell:hover img { opacity: 1; filter: grayscale(0); }
/* Text fallback until real vendor SVGs are supplied */
.logowall__name {
  font-family: var(--cn-font-display);
  font-size: 0.9375rem;
  font-weight: var(--fw-bold);
  letter-spacing: -0.01em;
  color: var(--text-faint);
  text-align: center;
  transition: color var(--dur-2) var(--ease-out);
}
.logowall__cell:hover .logowall__name { color: var(--text); }

/* ══════════════════════════════════════════════════════════════════════════
   ACCORDION (FAQ / specs)
   ══════════════════════════════════════════════════════════════════════════ */
.disclosure { border-top: 1px solid var(--line); }
.disclosure:last-child { border-bottom: 1px solid var(--line); }
.disclosure__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  width: 100%;
  padding: var(--s-6) 0;
  text-align: left;
  color: var(--text);
  font-family: var(--cn-font-display);
  font-size: var(--fs-h4);
  font-weight: var(--fw-semi);
  letter-spacing: -0.012em;
}
.disclosure__trigger:hover { color: var(--accent-text); }
.disclosure__trigger .icon { flex: none; transition: transform var(--dur-2) var(--ease-out); color: var(--accent-text); }
.disclosure__trigger[aria-expanded='true'] .icon { transform: rotate(45deg); }
.disclosure__panel { padding-bottom: var(--s-6); max-width: var(--container-text); color: var(--text-muted); font-size: var(--fs-sm); line-height: var(--lh-loose); }
.disclosure__panel[hidden] { display: none; }

/* ══════════════════════════════════════════════════════════════════════════
   FORMS
   ══════════════════════════════════════════════════════════════════════════ */
.field { display: grid; gap: var(--s-2); }
.field__label { font-size: var(--fs-sm); font-weight: var(--fw-med); }
.field__req { color: var(--accent-text); }
.field__hint { font-size: var(--fs-xs); color: var(--text-faint); }
.field__error { font-size: var(--fs-xs); color: #E5484D; font-weight: var(--fw-med); }
.field__error[hidden] { display: none; }

.input, .select, .textarea {
  inline-size: 100%;
  padding: 0.875rem 1rem;
  min-block-size: 3rem;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: var(--fs-sm);
  transition: border-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--text-faint); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--cn-accent);
  box-shadow: 0 0 0 3px var(--cn-accent-glow);
}
.input[aria-invalid='true'], .textarea[aria-invalid='true'], .select[aria-invalid='true'] { border-color: #E5484D; }
.textarea { min-block-size: 8rem; resize: vertical; line-height: var(--lh-normal); }
.select { appearance: none; background-image: none; padding-right: 2.5rem; cursor: pointer; }
.select-wrap { position: relative; }
.select-wrap .icon { position: absolute; right: 1rem; top: 50%; translate: 0 -50%; pointer-events: none; color: var(--text-muted); }

.checkbox { display: grid; grid-template-columns: auto 1fr; gap: var(--s-3); align-items: start; font-size: var(--fs-sm); color: var(--text-muted); cursor: pointer; }
.checkbox input { inline-size: 1.125rem; block-size: 1.125rem; margin-top: 0.22em; accent-color: var(--cn-accent); flex: none; }

.form-note { font-size: var(--fs-xs); color: var(--text-faint); line-height: var(--lh-normal); }
.form-status { padding: var(--s-4) var(--s-5); border: 1px solid var(--cn-accent); border-radius: var(--r-sm); background: var(--cn-accent-veil); font-size: var(--fs-sm); }
.form-status[hidden] { display: none; }

/* ── Newsletter inline form ──────────────────────────────────────────────── */
.subscribe { display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: flex-start; }
.subscribe .input { flex: 1 1 16rem; min-inline-size: 0; }

/* ══════════════════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--cn-ink-deep);
  color: var(--cn-text-on-dark);
  --text: var(--cn-text-on-dark);
  --text-muted: rgba(247, 249, 250, 0.62);
  --text-faint: rgba(247, 249, 250, 0.42);
  --line: rgba(247, 249, 250, 0.12);
  --line-faint: rgba(247, 249, 250, 0.07);
  --surface: var(--cn-ink-deep);
  --accent-text: var(--cn-accent);
  --link: var(--cn-accent);
}

.footer__top { padding-block: clamp(3rem, 2rem + 4vw, 5.5rem); border-bottom: 1px solid var(--line); }
.footer__cols {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) repeat(auto-fit, minmax(140px, 1fr));
  gap: clamp(2rem, 1rem + 3vw, 4rem);
}
@media (max-width: 767px) { .footer__cols { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); } }

.footer__brandcol { display: flex; flex-direction: column; gap: var(--s-5); }
.footer__blurb { font-size: var(--fs-sm); line-height: var(--lh-normal); color: var(--text-muted); max-width: 34ch; margin: 0; }

.footer__coltitle {
  font-family: var(--cn-font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-med);
  letter-spacing: var(--tr-eyebrow);
  text-transform: uppercase;
  color: var(--cn-accent);
  margin: 0 0 var(--s-5);
}
.footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s-3); }
.footer__list a { color: var(--text-muted); font-size: var(--fs-sm); }
.footer__list a:hover { color: var(--cn-text-on-dark); text-decoration: none; }
.footer__list li { margin: 0; }

.footer__mid { padding-block: clamp(2rem, 1.5rem + 2vw, 3rem); border-bottom: 1px solid var(--line); }
.footer__certs { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.cert {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  min-inline-size: 9rem;
}
.cert__label { font-size: var(--fs-xs); font-weight: var(--fw-semi); }
.cert__note { font-size: 0.6875rem; color: var(--text-faint); font-family: var(--cn-font-mono); letter-spacing: 0.02em; }

.footer__bottom {
  padding-block: var(--s-7);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-5);
  align-items: center;
  justify-content: space-between;
}
.footer__legal { font-size: var(--fs-xs); color: var(--text-faint); line-height: var(--lh-normal); max-width: 74ch; margin: 0; }
.footer__legal a { color: var(--text-muted); }
.footer__policies { display: flex; flex-wrap: wrap; gap: var(--s-5); list-style: none; margin: 0; padding: 0; }
.footer__policies a { font-size: var(--fs-xs); color: var(--text-muted); }

.social { display: flex; gap: var(--s-2); }
.social a {
  display: grid;
  place-items: center;
  inline-size: 2.375rem; block-size: 2.375rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text-muted);
  transition: all var(--dur-2) var(--ease-out);
}
.social a:hover { border-color: var(--cn-accent); color: var(--cn-accent); background: var(--cn-accent-veil); text-decoration: none; }

/* ══════════════════════════════════════════════════════════════════════════
   BACK TO TOP
   ══════════════════════════════════════════════════════════════════════════ */
.to-top {
  position: fixed;
  right: var(--s-6); bottom: var(--s-6);
  z-index: 80;
  display: grid;
  place-items: center;
  inline-size: 3rem; block-size: 3rem;
  background: var(--cn-ink);
  color: var(--cn-text-on-dark);
  border: 1px solid var(--cn-accent);
  border-radius: var(--r-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--dur-2) var(--ease-out);
}
.to-top[data-show='true'] { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--cn-accent); color: var(--cn-ink-deep); }

/* ══════════════════════════════════════════════════════════════════════════
   SCROLL REVEAL
   ══════════════════════════════════════════════════════════════════════════ */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-4) var(--ease-out), transform var(--dur-4) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}
/* Fail-safe: if JS never runs, nothing stays invisible. */
.no-js [data-reveal] { opacity: 1; transform: none; }

/* ══════════════════════════════════════════════════════════════════════════
   BREADCRUMBS
   ══════════════════════════════════════════════════════════════════════════ */
.crumbs { font-size: var(--fs-xs); color: var(--text-faint); font-family: var(--cn-font-mono); letter-spacing: 0.03em; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: var(--s-2); margin: 0; padding: 0; }
.crumbs li { margin: 0; display: flex; gap: var(--s-2); align-items: center; }
.crumbs li + li::before { content: '/'; opacity: 0.5; }
.crumbs a { color: var(--text-muted); }
.crumbs [aria-current='page'] { color: var(--text); }