/* ==========================================================================
   support.css — Demfati Support design system (about pattern, Demfati brand)
   Source: modules/support/assets/css/support.css
   Mirrors modules/about/assets/css/about-demfati.css vocabulary (dmf- tokens,
   site header/footer, statement hero, grids, cards, buttons) scoped to the
   support domain. Flat colors only — no gradients. Bootstrap + bootstrap-
   icons + AOS ship from the shared CDN via SiteChrome::head().
   ========================================================================== */

:root {
  --dmf-primary: #048bff;
  --dmf-primary-ink: #0376cc;
  --dmf-accent: #38bdf8;
  --dmf-accent-soft: #e0f2fe;
  --dmf-ink: #000000;
  --dmf-body: #333333;
  --dmf-muted: #666666;
  --dmf-line: #e4ece1;
  --dmf-line-strong: #c3cad4;
  --dmf-bg: #ffffff;
  --dmf-bg-soft: #f6f8f9;
  --dmf-bg-tint: #eff6ff;
  --dmf-radius-sm: 10px;
  --dmf-radius-md: 16px;
  --dmf-radius-lg: 24px;
  --dmf-radius-pill: 999px;
  --dmf-space-1: 8px;
  --dmf-space-2: 16px;
  --dmf-space-3: 24px;
  --dmf-space-4: 32px;
  --dmf-space-6: 48px;
  --dmf-space-8: 64px;
  --dmf-space-12: 96px;
  --dmf-font-display: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  --dmf-font-body: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  --dmf-maxw: 1120px;
  --dmf-maxw-prose: 760px;
}

/* Base --------------------------------------------------------------- */
html { scroll-behavior: smooth; }
.dmf-support { color: var(--dmf-body); font-family: var(--dmf-font-body); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
.dmf-support ::selection { background: var(--dmf-primary); color: #fff; }
.dmf-support h1, .dmf-support h2, .dmf-support h3 { color: var(--dmf-ink); font-family: var(--dmf-font-display); line-height: 1.15; letter-spacing: -.02em; text-wrap: balance; }
.dmf-section[id], .dmf-support [id].dmf-anchor { scroll-margin-top: 150px; }
.dmf-support a { color: var(--dmf-primary); }
.dmf-support :focus-visible { border-radius: 6px; }
.dmf-wrap { max-width: var(--dmf-maxw); margin-inline: auto; padding-inline: var(--dmf-space-3); }
.dmf-prose { max-width: var(--dmf-maxw-prose); }
.dmf-eyebrow { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--dmf-primary); margin-bottom: var(--dmf-space-2); }
.dmf-lead { font-size: 20px; line-height: 1.6; color: var(--dmf-body); }

/* Statement hero (flat) ------------------------------------------------ */
.dmf-hero { padding: var(--dmf-space-12) 0 var(--dmf-space-6); text-align: center; background: var(--dmf-bg-tint); }
.dmf-hero__statement { font-size: clamp(34px, 5.4vw, 64px); max-width: 20ch; margin: 0 auto var(--dmf-space-2); }
.dmf-hero__sub { font-size: 18px; color: var(--dmf-body); max-width: 62ch; margin: 0 auto; }
.dmf-hero__meta { margin-top: var(--dmf-space-2); color: var(--dmf-muted); font-size: 14px; }
.dmf-hero-search { display: flex; gap: 8px; background: var(--dmf-bg); border: 1px solid var(--dmf-line-strong); border-radius: var(--dmf-radius-pill); padding: 6px 6px 6px 20px; max-width: 620px; margin: var(--dmf-space-4) auto 0; text-align: left; }
.dmf-hero-search input { flex: 1; border: 0; outline: 0; font-size: 16px; font-family: inherit; color: var(--dmf-ink); min-width: 0; background: transparent; }
.dmf-hero-tags { margin-top: var(--dmf-space-2); display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; align-items: center; font-size: 14px; color: var(--dmf-muted); }
.dmf-hero-tags a { background: var(--dmf-bg); border: 1px solid var(--dmf-line); padding: 8px 16px; border-radius: var(--dmf-radius-pill); text-decoration: none; font-weight: 600; }

/* Sticky pill subnav ---------------------------------------------------- */
.dmf-subnav { position: sticky; top: 64px; z-index: 30; display: flex; justify-content: center; padding: var(--dmf-space-1) 0; }
.dmf-subnav__pill { display: flex; gap: 4px; flex-wrap: wrap; justify-content: center; border: 1px solid var(--dmf-line); background: var(--dmf-bg); border-radius: var(--dmf-radius-pill); padding: 6px; max-width: 100%; overflow-x: auto; }
.dmf-subnav__pill a { min-height: 44px; display: inline-flex; align-items: center; padding: 0 18px; border-radius: var(--dmf-radius-pill); color: var(--dmf-body); text-decoration: none; font-weight: 600; font-size: 14px; white-space: nowrap; }
.dmf-subnav__pill a.is-active, .dmf-subnav__pill a:hover { background: var(--dmf-ink); color: #fff; }

/* Sections --------------------------------------------------------------- */
.dmf-section { padding: var(--dmf-space-8) 0; }
.dmf-section--soft { background: var(--dmf-bg-soft); }
.dmf-section--tint { background: var(--dmf-bg-tint); }
.dmf-section__head { max-width: var(--dmf-maxw-prose); margin-bottom: var(--dmf-space-4); }
.dmf-section__head h2 { font-size: clamp(26px, 3.4vw, 38px); margin: 0 0 var(--dmf-space-1); }
.dmf-section__head p { margin: 0; color: var(--dmf-body); font-size: 17px; }
.dmf-section__head-row { display: flex; align-items: end; justify-content: space-between; gap: var(--dmf-space-2); flex-wrap: wrap; }

/* Cards ------------------------------------------------------------------ */
.dmf-grid { display: grid; gap: var(--dmf-space-3); }
.dmf-grid--3 { grid-template-columns: repeat(3, 1fr); }
.dmf-grid--2 { grid-template-columns: repeat(2, 1fr); }
.dmf-card { background: var(--dmf-bg); border: 1px solid var(--dmf-line); border-radius: var(--dmf-radius-md); padding: var(--dmf-space-3); display: flex; flex-direction: column; text-decoration: none; color: inherit; transition: border-color .15s ease; }
a.dmf-card:hover { border-color: var(--dmf-primary); }
.dmf-card h3, .dmf-card h4 { margin: 0 0 var(--dmf-space-1); }
.dmf-card p { margin: 0; }
.dmf-card__icon { width: 44px; height: 44px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; background: var(--dmf-bg-tint); color: var(--dmf-primary); font-size: 20px; margin-bottom: var(--dmf-space-2); }
.dmf-card__meta { margin-top: auto; padding-top: var(--dmf-space-2); font-weight: 700; font-size: 14px; }
.dmf-card__excerpt { font-size: 14px; color: var(--dmf-body); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* Article rows ------------------------------------------------------------ */
.dmf-support-rows { display: grid; gap: var(--dmf-space-2); }
.dmf-support-row { display: flex; gap: var(--dmf-space-2); align-items: flex-start; background: var(--dmf-bg); border: 1px solid var(--dmf-line); border-radius: var(--dmf-radius-md); padding: var(--dmf-space-2) var(--dmf-space-3); text-decoration: none; color: inherit; transition: border-color .15s ease; }
a.dmf-support-row:hover { border-color: var(--dmf-primary); }
.dmf-support-row h3 { margin: 0 0 4px; font-size: 17px; }
.dmf-support-row p { margin: 0; font-size: 14px; color: var(--dmf-body); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.dmf-support-row__kicker { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--dmf-primary); }

/* Article detail ----------------------------------------------------------- */
.dmf-doc { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: var(--dmf-space-4); align-items: start; }
.dmf-doc__body { background: var(--dmf-bg); border: 1px solid var(--dmf-line); border-radius: var(--dmf-radius-lg); padding: var(--dmf-space-4); }
.dmf-doc__body h1 { font-size: clamp(28px, 4vw, 42px); margin: 0 0 var(--dmf-space-1); }
.dmf-doc__meta { color: var(--dmf-muted); font-size: 14px; margin-bottom: var(--dmf-space-3); padding-bottom: var(--dmf-space-2); border-bottom: 1px solid var(--dmf-line); }
.dmf-doc__content { font-size: 17px; line-height: 1.8; color: var(--dmf-body); }
.dmf-doc__content p { margin: 0 0 1.2em; }
.dmf-doc__content img { max-width: 100%; height: auto; border-radius: var(--dmf-radius-sm); }
.dmf-doc__content ul, .dmf-doc__content ol { padding-left: 1.4em; margin: 0 0 1.2em; }
.dmf-doc__content li { margin-bottom: .5em; }
.dmf-doc__content pre { background: var(--dmf-ink); color: #e2e8f0; padding: var(--dmf-space-2); border-radius: var(--dmf-radius-sm); overflow-x: auto; }
.dmf-doc__side { display: grid; gap: var(--dmf-space-2); align-content: start; position: sticky; top: 150px; }
.dmf-doc__side .dmf-card h3 { font-size: 16px; }
.dmf-doc__side ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.dmf-doc__side ul a { font-size: 14px; text-decoration: none; line-height: 1.55; }
.dmf-back { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font-weight: 600; text-decoration: none; margin-bottom: var(--dmf-space-3); }

/* FAQ accordion -------------------------------------------------------------- */
.dmf-faq-group { margin-bottom: var(--dmf-space-4); }
.dmf-faq-group > h3 { font-size: 20px; margin: 0 0 var(--dmf-space-2); padding-bottom: var(--dmf-space-1); border-bottom: 2px solid var(--dmf-primary); display: inline-block; }
.dmf-faq-group details { background: var(--dmf-bg); border: 1px solid var(--dmf-line); border-radius: var(--dmf-radius-md); padding: 18px 22px; margin-bottom: 12px; }
.dmf-faq-group summary { cursor: pointer; font-weight: 600; font-size: 16px; line-height: 1.55; list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center; min-height: 44px; }
.dmf-faq-group summary::-webkit-details-marker { display: none; }
.dmf-faq-group summary::after { content: '+'; font-size: 22px; color: var(--dmf-primary); flex-shrink: 0; line-height: 1; }
.dmf-faq-group details[open] summary::after { content: '\2013'; }
.dmf-faq-group details div { margin-top: 12px; font-size: 15px; line-height: 1.75; color: var(--dmf-body); }

/* Ask AI ---------------------------------------------------------------------- */
.dmf-ask-form { display: flex; gap: 8px; max-width: 640px; margin: var(--dmf-space-3) auto 0; }
.dmf-ask-form input { flex: 1; border: 1px solid var(--dmf-line-strong); border-radius: var(--dmf-radius-pill); padding: 0 22px; min-height: 52px; font-size: 15px; font-family: inherit; min-width: 0; color: var(--dmf-ink); }
.dmf-ask-form button { border: 0; }
.dmf-ask-form button[disabled] { opacity: .6; cursor: wait; }
.dmf-answer { margin: var(--dmf-space-3) auto 0; max-width: 720px; background: var(--dmf-bg); border: 1px solid var(--dmf-line); border-radius: var(--dmf-radius-md); padding: var(--dmf-space-3); line-height: 1.75; font-size: 15px; text-align: left; }
.dmf-answer p { margin: 0 0 1em; }
.dmf-answer p:last-child, .dmf-answer li:last-child { margin-bottom: 0; }
.dmf-answer ul, .dmf-answer ol { padding-left: 1.4em; margin: 0 0 1em; }
.dmf-answer li { margin-bottom: .45em; }
.dmf-cta { text-align: center; padding: var(--dmf-space-8) 0; }
.dmf-warn { background: #fff7ed; border: 1px solid #fed7aa; color: #9a3412; border-radius: var(--dmf-radius-md); padding: 18px 22px; margin: var(--dmf-space-3) 0; line-height: 1.7; }
.dmf-empty { text-align: center; padding: var(--dmf-space-8) var(--dmf-space-3); color: var(--dmf-muted); }
.dmf-empty p { margin: 0; font-size: 16px; }

/* Numbered pager --------------------------------------------------------------- */
.dmf-pager { display: flex; gap: 8px; justify-content: center; margin-top: var(--dmf-space-4); align-items: center; flex-wrap: wrap; }
.dmf-pager a, .dmf-pager span { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 12px; border: 1px solid var(--dmf-line); background: var(--dmf-bg); text-decoration: none; color: var(--dmf-ink); font-size: 14px; font-weight: 600; padding: 0 14px; }
.dmf-pager a:hover { border-color: var(--dmf-ink); }
.dmf-pager .is-current { background: var(--dmf-ink); color: #fff; border-color: var(--dmf-ink); }
.dmf-count { font-size: 14px; color: var(--dmf-muted); }

/* Buttons / CTAs --------------------------------------------------------------- */
.dmf-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 28px; border-radius: var(--dmf-radius-pill); font-weight: 700; text-decoration: none; border: 1px solid transparent; transition: background .15s ease, border-color .15s ease; }
.dmf-btn--primary, .dmf-btn--primary:visited { background: var(--dmf-primary); color: #fff; }
.dmf-btn--primary:hover { background: var(--dmf-primary-ink); color: #fff; }
.dmf-btn--ghost, .dmf-btn--ghost:visited { border-color: var(--dmf-line-strong); color: var(--dmf-ink); background: var(--dmf-bg); }
.dmf-btn--ghost:hover { border-color: var(--dmf-ink); color: var(--dmf-ink); }

/* Header / footer chrome -------------------------------------------------------- */
.dmf-site-header { position: sticky; top: 0; z-index: 50; background: var(--dmf-bg); border-bottom: 1px solid var(--dmf-line); }
.dmf-site-header.is-scrolled { border-bottom-color: var(--dmf-line-strong); }
.dmf-site-header__inner { max-width: var(--dmf-maxw); margin-inline: auto; padding: 0 var(--dmf-space-3); min-height: 68px; display: flex; align-items: center; gap: var(--dmf-space-2); }
.dmf-site-header__logo img { height: 36px; width: auto; display: block; }
.dmf-site-nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.dmf-site-nav__link { min-height: 44px; display: inline-flex; align-items: center; padding: 0 14px; border-radius: var(--dmf-radius-pill); color: var(--dmf-body); text-decoration: none; font-weight: 600; font-size: 14px; }
.dmf-site-nav__link:hover, .dmf-site-nav__link.is-active { background: var(--dmf-bg-tint); color: var(--dmf-ink); }
.dmf-site-header__cta { min-height: 44px; }
.dmf-nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--dmf-line-strong); background: var(--dmf-bg); border-radius: 12px; font-size: 20px; color: var(--dmf-ink); }
.dmf-site-footer { border-top: 1px solid var(--dmf-line); background: var(--dmf-bg-soft); margin-top: var(--dmf-space-8); }
.dmf-site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--dmf-space-4); padding: var(--dmf-space-6) 0; }
.dmf-site-footer h4 { font-size: 14px; text-transform: uppercase; letter-spacing: .1em; color: var(--dmf-muted); margin: 0 0 var(--dmf-space-1); }
.dmf-site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.dmf-site-footer ul a { display: inline-flex; align-items: center; min-height: 44px; color: var(--dmf-body); text-decoration: none; }
.dmf-site-footer ul a:hover { color: var(--dmf-primary); }
.dmf-site-footer__brand { font-family: var(--dmf-font-display); font-weight: 800; font-size: 18px; color: var(--dmf-ink); }
.dmf-site-footer__bottom { border-top: 1px solid var(--dmf-line); padding: var(--dmf-space-2) 0; display: flex; justify-content: space-between; gap: var(--dmf-space-2); flex-wrap: wrap; color: var(--dmf-muted); font-size: 14px; }

/* Support hero variant: left-aligned split (drifts from centered statement hero) */
.dmf-hero--split { text-align: left; }
.dmf-hero--split .dmf-wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--dmf-space-6); align-items: center; text-align: left; }
.dmf-hero--split .dmf-hero__statement { margin: 0 0 var(--dmf-space-2); }
.dmf-hero--split .dmf-hero__sub { margin: 0; }
.dmf-hero-card { background: var(--dmf-bg); border: 1px solid var(--dmf-line); border-radius: var(--dmf-radius-lg); padding: var(--dmf-space-4); }
.dmf-hero-card h2 { font-size: 20px; margin: 0 0 var(--dmf-space-1); }
.dmf-hero-card p { margin: 0 0 var(--dmf-space-2); font-size: 14px; color: var(--dmf-muted); }
.dmf-hero-card .dmf-hero-search { margin: 0; }
.dmf-quick-links { list-style: none; margin: var(--dmf-space-3) 0 0; padding: var(--dmf-space-2) 0 0; border-top: 1px solid var(--dmf-line); display: grid; gap: 4px; }
.dmf-quick-links a { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 44px; text-decoration: none; font-weight: 600; font-size: 14px; color: var(--dmf-body); }
.dmf-quick-links a:hover { color: var(--dmf-primary); }
.dmf-quick-links a .bi { color: var(--dmf-accent); }

/* Topic cards: horizontal media rows (drifts from stacked cards) */
.dmf-card--row { flex-direction: row; align-items: flex-start; gap: var(--dmf-space-2); }
.dmf-card--row .dmf-card__icon { margin-bottom: 0; flex-shrink: 0; background: var(--dmf-accent-soft); color: var(--dmf-accent); }
.dmf-card--row > div { min-width: 0; }

/* Teal accents mark the support surface */
.dmf-support .dmf-eyebrow { color: var(--dmf-accent); }
.dmf-support-row__kicker, .dmf-faq-group > h3 { border-color: var(--dmf-accent); }
.dmf-faq-group summary::after { color: var(--dmf-accent); }
.dmf-support-row__kicker { color: var(--dmf-accent); }

/* Support-specific rhythm utilities -------------------------------------------- */
.dmf-mt { margin-top: var(--dmf-space-3); }
.dmf-rows-spaced { margin-top: var(--dmf-space-3); }
.dmf-prose--wide { max-width: 860px; }
.dmf-subnav--static { position: static; justify-content: flex-start; padding: 0; margin: var(--dmf-space-3) 0; }
.dmf-hero-search--flush { margin-top: 0; }
.dmf-hero-tags { margin-top: var(--dmf-space-2); display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; align-items: center; font-size: 14px; color: var(--dmf-muted); }
.dmf-hero-tags a { background: var(--dmf-bg); border: 1px solid var(--dmf-line); padding: 8px 16px; border-radius: var(--dmf-radius-pill); text-decoration: none; font-weight: 600; }

/* Overflow guards (no horizontal scroll, ever) -------------------------------- */
body.page-support, .dmf-support { overflow-x: clip; }
.dmf-support img, .dmf-support svg, .dmf-support video, .dmf-support iframe { max-width: 100%; }
.dmf-support h1, .dmf-support h2, .dmf-support h3, .dmf-support p, .dmf-support li, .dmf-support summary { overflow-wrap: break-word; }
.dmf-support a { overflow-wrap: anywhere; }
.dmf-wrap, .dmf-grid > *, .dmf-doc > *, .dmf-site-header__inner, .dmf-site-footer__grid > *, .dmf-cta > * { min-width: 0; }
.dmf-doc__content, .dmf-answer, .dmf-card p, .dmf-support-row p { overflow-wrap: anywhere; }
.dmf-doc__content pre { max-width: 100%; overflow-x: auto; }
.dmf-doc__content table { display: block; max-width: 100%; overflow-x: auto; }
.dmf-doc__content iframe { width: 100%; height: auto; aspect-ratio: 16/9; }
.dmf-subnav__pill, .dmf-pager { max-width: 100%; }

/* Reveal (JS-enhanced, no-JS safe) ---------------------------------------------- */
.dmf-reveal { opacity: 1; }
.js .dmf-reveal { opacity: 0; transition: opacity .5s ease; }
.js .dmf-reveal.is-in { opacity: 1; }

/* Responsive -------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .dmf-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .dmf-doc { grid-template-columns: 1fr; }
  .dmf-doc__side { position: static; }
  .dmf-site-footer__grid { grid-template-columns: 1fr 1fr; }
  .dmf-hero--split .dmf-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .dmf-site-footer__grid { grid-template-columns: 1fr; gap: var(--dmf-space-3); padding: var(--dmf-space-4) 0; }
  .dmf-site-footer__bottom { flex-direction: column; align-items: center; text-align: center; gap: var(--dmf-space-1); }
}
@media (max-width: 640px) {
  .dmf-grid--3, .dmf-grid--2 { grid-template-columns: 1fr; }
  .dmf-hero { padding: var(--dmf-space-6) 0 var(--dmf-space-4); }
  .dmf-subnav { top: 60px; }
  .dmf-site-nav { display: none; position: absolute; top: 68px; left: 12px; right: 12px; flex-direction: column; background: var(--dmf-bg); border: 1px solid var(--dmf-line); border-radius: var(--dmf-radius-md); padding: var(--dmf-space-1); }
  .dmf-site-nav.is-open { display: flex; }
  .dmf-nav-toggle { display: inline-flex; align-items: center; justify-content: center; margin-left: auto; }
  .dmf-site-header__cta { display: none; }
  .dmf-hero-search { flex-direction: column; border-radius: 20px; padding: 10px; }
  .dmf-hero-search input { min-height: 48px; padding: 0 14px; }
  .dmf-ask-form { flex-direction: column; }
  .dmf-doc__body { padding: var(--dmf-space-3); }
}

/* Reduced motion ----------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .dmf-reveal { opacity: 1; transition: none; }
}