/* Global Dentistry Exchange — brand site
   Palette A (approved 17 Sep 2026) · Type Pairing 1 */

:root{
  --porcelain:#F3F0EA;
  --porcelain-2:#E7E2D9;
  --graphite:#161513;
  --graphite-2:#24221F;
  --brass:#8C6D3F;
  --brass-deep:#735830;
  --brass-light:#C6A66B;
  --muted:#57534C;
  --rule:#C9C2B6;
  --white:#FFFFFF;
  --plate:#2B2926;

  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Geist","Helvetica Neue",Arial,sans-serif;
  --mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --gutter:80px;
  --maxw:1440px;
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--porcelain);color:var(--graphite);
  font-family:var(--sans);font-size:17px;line-height:1.6;font-weight:300;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--graphite);text-decoration:none}
a:hover{color:var(--brass-deep)}
:focus-visible{outline:2px solid var(--brass-deep);outline-offset:3px}
h1,h2,h3{margin:0;font-family:var(--serif);font-weight:300;letter-spacing:-.02em;text-wrap:balance}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.eyebrow{font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-deep)}
.eyebrow--ink{color:var(--graphite)}
.eyebrow--soft{color:var(--muted)}
.lede{font-size:19px;line-height:1.6;color:var(--muted);max-width:60ch}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- lockup + header ---------- */
.lockup{display:flex;align-items:center;gap:12px;color:var(--graphite)}
.lockup__mark{display:block;flex:none;width:55.93px;height:21px;fill:currentColor}
.lockup__bar{width:1px;height:27px;background:var(--brass)}
.lockup__name{font-family:var(--sans);font-weight:500;font-size:9px;line-height:1.5;letter-spacing:.2em;text-transform:uppercase}
.lockup--dark{color:var(--porcelain)}
.lockup--dark .lockup__bar{background:var(--brass-light)}

.site-header{position:sticky;top:0;z-index:20;background:var(--porcelain);border-bottom:1px solid var(--rule)}
.site-header__in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:88px;max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.site-nav{display:flex;gap:40px;font-size:15px}
.site-nav a[aria-current="page"],.site-nav a.is-section{color:var(--brass-deep)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;
  font-family:var(--sans);font-size:15px;font-weight:500;border:1px solid var(--graphite);
  background:var(--graphite);color:var(--porcelain);transition:background .15s,color .15s}
.btn:hover{background:var(--brass-deep);border-color:var(--brass-deep);color:var(--porcelain)}
.btn--ghost{background:transparent;color:var(--graphite)}
.btn--ghost:hover{background:var(--graphite);color:var(--porcelain);border-color:var(--graphite)}
.btn--onDark{background:var(--porcelain);border-color:var(--porcelain);color:var(--graphite)}
.btn--onDark:hover{background:var(--brass-light);border-color:var(--brass-light);color:var(--graphite)}
.btn--sm{min-height:44px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-block-start:8px}

/* ---------- sections ---------- */
section{padding-block:96px}
.section--tint{background:var(--porcelain-2)}
.section--dark{background:var(--graphite);color:var(--porcelain)}
.section--dark a:not(.btn){color:var(--porcelain)}
.section--dark .eyebrow{color:var(--brass-light)}
.section--tight{padding-block:64px}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:40px}
.h-xl{font-size:clamp(40px,6vw,76px);line-height:.98;letter-spacing:-.025em}
.h-lg{font-size:clamp(32px,4.4vw,56px);line-height:1.02}
.h-md{font-size:clamp(26px,3vw,40px);line-height:1.05}
.h-sm{font-size:24px;line-height:1.25}
.sub-italic{font-family:var(--serif);font-style:italic;font-weight:300;font-size:22px;line-height:1.3;color:var(--muted)}
.section--dark .sub-italic{color:rgba(243,240,234,.82)}

/* ---------- decision strip (fixed field order) ---------- */
.strip{display:flex;flex-direction:column;border-top:1px solid var(--rule)}
.strip__row{display:grid;grid-template-columns:150px minmax(0,1fr);gap:20px;align-items:baseline;
  border-bottom:1px solid var(--rule);padding:12px 0}
.strip__k{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.strip__v{font-family:var(--mono);font-size:15px;color:var(--graphite);font-variant-numeric:tabular-nums}
.section--dark .strip{border-color:rgba(243,240,234,.25)}
.section--dark .strip__row{border-color:rgba(243,240,234,.25)}
.section--dark .strip__k{color:rgba(243,240,234,.7)}
.section--dark .strip__v{color:var(--porcelain)}

/* ---------- numbered principles ---------- */
.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}
.principle{border-top:1px solid var(--graphite);padding-top:16px;display:flex;flex-direction:column;gap:10px}
.principle__n{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.14em;color:var(--brass-deep)}

/* ---------- Q&A ---------- */
.qa{display:flex;flex-direction:column}
.qa__item{border-top:1px solid var(--rule);padding:24px 0;display:grid;grid-template-columns:420px minmax(0,1fr);gap:40px;align-items:start}
.qa__q{font-family:var(--serif);font-size:24px;line-height:1.25}
.qa__a{font-size:17px;line-height:1.6;color:var(--muted)}
.qa-group{margin-bottom:40px;display:flex;flex-direction:column;gap:8px}

/* ---------- course card ---------- */
.card{background:var(--white);border:1px solid var(--rule);padding:28px;
  display:grid;grid-template-columns:400px minmax(0,1fr) 300px;gap:40px;align-items:stretch}
/* the plate matches the height of the detail column (eyebrow -> CPD row),
   not a fixed ratio. Taking the image out of flow stops it setting the row height. */
.card__media{min-width:0;position:relative;align-self:stretch}
.card__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card__body{display:flex;flex-direction:column;gap:12px;min-width:0}
.card__side{display:flex;flex-direction:column;justify-content:space-between;gap:24px;
  border-left:1px solid var(--rule);padding-left:28px;min-width:0}
/* the side column is narrow: stack key over value so figures never wrap */
.card__side .strip__row{grid-template-columns:minmax(0,1fr);gap:3px;padding:12px 0}
.card__side .strip__v{font-size:17px;white-space:nowrap}
.tagline{display:flex;gap:10px;flex-wrap:wrap;font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase}
.tagline span:first-child{color:var(--brass-deep)}
.tagline span+span{color:var(--muted)}

.empty-note{border:1px dashed #8A847A;padding:36px;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}

/* ---------- media ---------- */
.figure figcaption{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted);margin-top:10px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:start}
.split{display:grid;grid-template-columns:560px minmax(0,1fr);gap:80px;row-gap:56px;align-items:start}
/* used on its own (not alongside .split) — it must carry the grid itself,
   otherwise the columns stack as blocks with zero spacing */
.split--rev{display:grid;grid-template-columns:minmax(0,1fr) 560px;gap:80px;row-gap:56px;align-items:start}

/* ---------- home: next-edition block ----------
   The plate matches the height of the detail block (eyebrow -> last strip row).
   The buttons sit on their own grid row so they do not stretch the plate. */
.home-course{display:grid;grid-template-columns:minmax(0,1fr) 560px;
  column-gap:80px;row-gap:24px;align-items:start}
.home-course__head{grid-column:1;grid-row:1;display:flex;flex-direction:column;gap:16px;min-width:0}
.home-course__media{grid-column:2;grid-row:1;position:relative;align-self:stretch;min-width:0;min-height:0}
.home-course__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.home-course__cta{grid-column:1;grid-row:2;margin-block-start:0}
.home-course__cap{grid-column:2;grid-row:2;font-family:var(--mono);font-size:12px;
  letter-spacing:.06em;color:var(--muted)}

/* ---------- home page faculty slider ----------
   Two people today, more later. Column auto-flow means the row simply fills
   the width while there are few of them and becomes a swipe once there are
   too many for it - no breakpoint to maintain as faculty is added. */
.facslide{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);gap:64px;
  overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;padding-bottom:6px}
.facslide::-webkit-scrollbar{display:none}
.facslide__item{scroll-snap-align:start;display:flex;flex-direction:column;gap:16px;min-width:0}
.facslide__item img{width:100%;aspect-ratio:4/5;height:auto;object-fit:cover;display:block}
.facslide__name{color:inherit;text-decoration:none}
.facslide__name:hover{color:var(--brass-deep)}
@media (max-width:820px){.facslide{grid-auto-columns:86%;gap:20px}}

/* ---------- whole course card is one link ----------
   A stretched pseudo-element rather than wrapping the card in an <a>: the
   card already contains links, and an anchor cannot contain anchors. */
.card{position:relative}
.card__go::after{content:"";position:absolute;inset:0;z-index:1}
.card a:not(.card__go){position:relative;z-index:2}

/* ---------- faculty index roster ---------- */
.roster{display:flex;flex-direction:column}
.roster__row{display:grid;grid-template-columns:280px minmax(0,1fr) 210px;gap:44px;align-items:start;
  border-top:1px solid var(--graphite);padding:36px 0}
.roster__row:last-child{border-bottom:1px solid var(--rule)}
.roster__media img{width:100%;aspect-ratio:3/4;height:auto;object-fit:cover}
.roster__body{display:flex;flex-direction:column;gap:14px;min-width:0}
.roster__side{display:flex;flex-direction:column;gap:12px}
.roster__side .btn{width:100%}

/* ---------- faculty page ---------- */
.fac-col{display:flex;flex-direction:column;gap:36px}
.fac-head{display:flex;flex-direction:column;gap:14px}
.fac-block{display:flex;flex-direction:column;gap:16px}
.strip--rec .strip__row{grid-template-columns:132px minmax(0,1fr);gap:28px;padding:15px 0;align-items:start}
.strip--rec .strip__k{padding-top:3px}
.strip--rec .strip__v{font-size:14.5px;line-height:1.6;letter-spacing:-.005em}

/* ---------- prose (legal pages) ---------- */
.prose{max-width:74ch;display:flex;flex-direction:column;gap:20px}
.prose h2{font-size:28px;line-height:1.2;margin-top:24px}
.prose h3{font-family:var(--sans);font-weight:500;font-size:18px;letter-spacing:0}
.prose p,.prose li{font-size:17px;line-height:1.65;color:var(--muted)}
.prose strong{color:var(--graphite);font-weight:500}
.prose ul{list-style:disc;padding-left:22px;display:flex;flex-direction:column;gap:8px}
.prose ol{padding-left:22px;display:flex;flex-direction:column;gap:8px}
.placeholder{background:#F6E9C9;border-bottom:1px solid var(--brass);padding:0 3px;color:var(--graphite)}

/* ---------- footer ---------- */
.site-footer{background:var(--graphite-2);color:var(--porcelain);padding-block:64px 40px}
.site-footer a{color:var(--porcelain)}
.site-footer a:hover{color:var(--brass-light)}
.footer-cols{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px;margin-top:40px}
.footer-col{display:flex;flex-direction:column;gap:10px;border-top:1px solid rgba(243,240,234,.25);padding-top:14px}
.footer-col .eyebrow{color:rgba(243,240,234,.6);font-size:11px}
.footer-col a,.footer-col span{font-size:15px;line-height:1.5}
.legal-line{font-family:var(--mono);font-size:12px;line-height:1.7;color:rgba(243,240,234,.55);
  border-top:1px solid rgba(243,240,234,.25);padding-top:18px;margin-top:40px}
.updated{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase}

/* ---------- WhatsApp bubble (desktop only, per rule 02) ---------- */
.wa{position:fixed;right:28px;bottom:28px;z-index:30;width:60px;height:60px;border-radius:50%;
  background:var(--graphite);color:var(--porcelain);display:flex;align-items:center;justify-content:center;
  border:1px solid var(--graphite)}
.wa:hover{background:var(--brass-deep);border-color:var(--brass-deep);color:var(--porcelain)}

/* ---------- mobile sticky bar (rule 02) ---------- */
.sticky-bar{display:none}

@media (max-width:1180px){
  :root{--gutter:48px}
  .card{grid-template-columns:300px minmax(0,1fr);align-items:start}
  .card__side{grid-column:1 / -1;border-left:0;border-top:1px solid var(--rule);padding-left:0;padding-top:20px;
    flex-direction:row;justify-content:space-between;align-items:flex-end;flex-wrap:wrap}
  .card__side .strip{flex:0 0 auto}
  .strip--rec .strip__row{grid-template-columns:120px minmax(0,1fr);gap:20px}
  .split,.split--rev{grid-template-columns:minmax(0,1fr);gap:40px}
  .home-course{grid-template-columns:minmax(0,1fr);row-gap:16px}
  .home-course__head,.home-course__media,.home-course__cta,.home-course__cap{grid-column:1;grid-row:auto}
  .home-course__head{order:1}
  .home-course__media{order:2}
  .home-course__cap{order:3}
  .home-course__cta{order:4;margin-block-start:8px}
  .home-course__media{position:static;align-self:auto;margin-top:24px}
  .home-course__media img{position:static;width:100%;height:auto;object-fit:contain}
  .roster__row{grid-template-columns:220px minmax(0,1fr);gap:32px}
  .roster__side{grid-column:2;flex-direction:row;flex-wrap:wrap}
  .roster__side .btn{width:auto}
  .principles{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:760px){
  :root{--gutter:20px}
  body{font-size:16px}
  section{padding-block:56px}
  .site-header__in{height:64px}
  .site-nav{display:none}
  .lockup__mark{width:44.75px;height:16.8px}
  .lockup__bar{height:21px}
  .lockup__name{font-size:7px}
  .card__media{position:static;min-height:0}
  .card__media img{position:static;width:100%;height:auto;aspect-ratio:auto;object-fit:contain}
  .roster__row{grid-template-columns:minmax(0,1fr);gap:20px;padding:28px 0}
  .roster__side{grid-column:1;flex-direction:column}
  .roster__side .btn{width:100%}
  .card{grid-template-columns:minmax(0,1fr);padding:20px;gap:20px}
  .card__side{flex-direction:column;align-items:stretch}
  .card__side .strip__row{grid-template-columns:minmax(0,1fr);text-align:left}
  .card__side .strip__v{text-align:left;font-size:16px}
  .strip--rec .strip__row{grid-template-columns:minmax(0,1fr);gap:4px}
  .strip--rec .strip__v{text-align:left;font-size:13.5px}
  .qa__item{grid-template-columns:minmax(0,1fr);gap:10px}
  .principles,.grid-3,.grid-2{grid-template-columns:minmax(0,1fr);gap:24px}
  .strip__row{grid-template-columns:96px minmax(0,1fr);gap:10px}
  .strip__v{font-size:12.5px;text-align:right;overflow-wrap:anywhere}
  .strip__k{font-size:10px}
  .btn,.btn--sm{width:100%}
  .btn-row{flex-direction:column}
  .site-header .btn{width:auto;flex:0 0 auto;padding:0 16px;font-size:13px;min-height:40px}
  .footer-cols{grid-template-columns:minmax(0,1fr);gap:24px}
  .empty-note{padding:24px}
  .wa{display:none}
  body{padding-bottom:84px}
  .sticky-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:25;
    height:calc(76px + env(safe-area-inset-bottom,0px));
    padding:12px 20px calc(12px + env(safe-area-inset-bottom,0px));
    background:var(--porcelain);border-top:1px solid var(--graphite);
    align-items:center;justify-content:space-between;gap:12px}
  .sticky-bar__meta{display:flex;flex-direction:column;gap:2px;min-width:0}
  .sticky-bar__meta .k{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
  .sticky-bar__meta .v{font-size:14px;font-weight:500}
  .sticky-bar .btn{width:auto;flex:0 0 auto;min-height:48px;padding:0 24px;font-size:14px}
}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}