/* ===================================================================
   Exhibition guide — content styling
   Scoped under .exg so it sits inside the standard BTW site chrome
   (topbar / navbar / footer from styles) without clashing. Design
   tokens are declared on .exg, not :root, so the site's own --navy,
   --white, --radius etc. are untouched outside this block.
   =================================================================== */

html { scroll-padding-top: 100px; }

.exg {
  --navy:#071426; --navy2:#0b203a; --cyan:#65e7ed; --cyan2:#a7f7f4;
  --orange:#ff6b35; --paper:#f5f7f8; --ink:#102033; --muted:#617083;
  --line:#dce3e8; --white:#fff; --radius:18px;
  --shadow:0 24px 70px rgba(4,19,36,.14);

  background:var(--paper);
  color:var(--ink);
  font:16px/1.75 Manrope,Arial,sans-serif;
}
.exg *{box-sizing:border-box}
.exg a{color:inherit;text-decoration:none}
/* site chrome sets h1-h5{color:var(--navy)} on bare tags, which resolves to
   .exg's own --navy (#071426) and hides hero text on the dark hero. Reset so
   headings take the colour of their scoped context instead. */
.exg h1,.exg h2,.exg h3,.exg h4,.exg h5,.exg h6{color:inherit}
.exg .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* reading progress bar */
.exg .progress{position:fixed;z-index:1000;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--orange),var(--cyan))}

/* ---------- hero ---------- */
.exg .hero{position:relative;background:var(--navy);color:#fff;overflow:hidden;padding:80px max(5vw,24px) 0}
.exg .hero:before{content:"";position:absolute;width:680px;height:680px;border-radius:50%;right:-180px;top:-240px;background:radial-gradient(circle,rgba(101,231,237,.18),transparent 67%)}
.exg .hero-inner{position:relative;z-index:2;max-width:1100px;margin:auto;padding-bottom:70px}
.exg .eyebrow{display:flex;align-items:center;gap:18px;color:#9db1c5;text-transform:uppercase;letter-spacing:.13em;font-size:12px}
.exg .eyebrow span{color:var(--cyan);font-weight:700}
.exg .eyebrow time:before{content:"";display:inline-block;width:22px;height:1px;background:#496078;margin:0 16px 3px 0}
.exg .hero h1{max-width:900px;margin:32px 0 22px;font:600 clamp(3.2rem,7vw,6.8rem)/.98 Space Grotesk,sans-serif;letter-spacing:-.06em}
.exg .hero h1 em{font-style:normal;color:var(--cyan)}
.exg .lead{max-width:660px;color:#c1cfdb;font-size:clamp(1.05rem,2vw,1.25rem);line-height:1.65}
.exg .hero-actions{display:flex;gap:12px;margin-top:34px}
.exg .button{display:inline-flex;align-items:center;justify-content:center;gap:20px;padding:14px 20px;border-radius:9px;font-weight:700;font-size:14px;transition:.2s}
.exg .button:hover{transform:translateY(-2px)}
.exg .primary{background:var(--orange);color:#fff}
.exg .ghost{border:1px solid #496078;color:#d9e4ee}
.exg .light{background:#fff;color:var(--navy)}

/* ---------- event strip ---------- */
.exg .event-strip{position:relative;z-index:2;max-width:1200px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #2a4157}
.exg .event-strip>div{padding:28px 24px;border-right:1px solid #2a4157}
.exg .event-strip>div:first-child{padding-left:0}
.exg .event-strip>div:last-child{border:0}
.exg .event-strip small,.exg .event-strip span{display:block;color:#91a6ba;font-size:12px}
.exg .event-strip small{text-transform:uppercase;letter-spacing:.12em;margin-bottom:7px}
.exg .event-strip strong{font:600 23px Space Grotesk,sans-serif;color:#fff}

/* decorative rings in the hero */
.exg .optic-grid{position:absolute;right:7%;top:12%;opacity:.45}
.exg .optic-grid i{position:absolute;border:1px solid var(--cyan);border-radius:50%;width:280px;height:280px}
.exg .optic-grid i:nth-child(2){width:180px;height:180px;left:50px;top:50px}
.exg .optic-grid i:nth-child(3){width:55px;height:55px;left:112px;top:112px;background:rgba(101,231,237,.1)}

/* ---------- layout: sticky TOC + article ---------- */
.exg .page-shell{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:230px minmax(0,780px);gap:85px;padding:75px 24px 100px}
.exg .toc{position:sticky;top:112px;align-self:start;display:flex;flex-direction:column;gap:4px;border-left:1px solid var(--line);max-height:calc(100vh - 210px);overflow-y:auto;scrollbar-width:thin}
.exg .toc>p{margin:0 0 14px;padding-left:18px;font:700 13px Space Grotesk,sans-serif;text-transform:uppercase;letter-spacing:.1em}
.exg .toc>a{padding:7px 18px;color:#718092;font-size:13px;border-left:2px solid transparent;margin-left:-1px}
.exg .toc>a.active{color:var(--ink);border-left-color:var(--orange);font-weight:700}
.exg .toc-help{margin:25px 0 0 18px;padding:16px;background:#e8eef1;border-radius:10px;font-size:12px}
.exg .toc-help span,.exg .toc-help a{display:block}
.exg .toc-help a{margin-top:5px;color:#c34d24;font-weight:700}

.exg .article-meta{display:flex;gap:20px;align-items:center;padding-bottom:24px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.exg .article-meta button{margin-left:auto;border:0;background:none;color:var(--muted);font:600 13px Manrope,sans-serif;cursor:pointer}

.exg .content-section{margin:75px 0}
.exg .content-section h2{font:600 clamp(2rem,4vw,3.15rem)/1.1 Space Grotesk,sans-serif;letter-spacing:-.04em;margin:8px 0 26px;color:var(--ink)}
.exg .content-section p{color:#47596b}
.exg .overline{margin:0!important;text-transform:uppercase;letter-spacing:.14em;color:#d95325!important;font-size:12px;font-weight:800}

.exg .ai-overview{margin-top:35px;padding:30px 34px;background:#e7f6f5;border:1px solid #c0e8e6;border-radius:var(--radius)}
.exg .ai-overview p{font-size:17px;color:#263b4c}
.exg .section-kicker{font:700 13px Space Grotesk,sans-serif;text-transform:uppercase;letter-spacing:.12em;color:#0b5960}
.exg .spark{display:inline-grid;place-items:center;width:28px;height:28px;margin-right:8px;border-radius:50%;background:var(--cyan);color:var(--navy)}

.exg .stats{display:grid;grid-template-columns:repeat(3,1fr);margin-top:38px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
.exg .stats div{padding:24px;border-right:1px solid var(--line)}
.exg .stats div:last-child{border:0}
.exg .stats strong,.exg .stats span{display:block}
.exg .stats strong{font:600 32px Space Grotesk,sans-serif}
.exg .stats span{font-size:12px;color:var(--muted)}

.exg .venue-card{display:flex;gap:20px;padding:26px;background:var(--navy);color:#fff;border-radius:var(--radius)}
.exg .venue-card .pin{font-size:28px;color:var(--cyan)}
.exg .venue-card small{color:var(--cyan);letter-spacing:.14em}
.exg .venue-card h3{margin:3px 0;font:600 20px Space Grotesk,sans-serif}
.exg .venue-card p{margin:0;color:#aebfce}

.exg .schedule{margin-top:15px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.exg .schedule-row{display:grid;grid-template-columns:1fr 1fr 1.25fr;padding:15px 20px;border-top:1px solid var(--line);font-size:14px}
.exg .schedule-row.head{border:0;background:#e8eef1;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.exg .note{font-size:13px;padding-left:16px;border-left:2px solid var(--orange)}

.exg .topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.exg .topic-grid>div{min-height:190px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:14px}
.exg .topic-grid span{color:var(--orange);font:600 12px Space Grotesk,sans-serif}
.exg .topic-grid h3{font:600 20px Space Grotesk,sans-serif;margin:22px 0 4px}
.exg .topic-grid p{font-size:14px;margin:0}

.exg .split-copy{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px}
.exg .split-copy h2{margin-top:8px}
.exg .split-copy>div:last-child{padding-top:20px}

.exg .steps{list-style:none;padding:0;margin:0}
.exg .steps li{display:flex;gap:22px;padding:22px 0;border-top:1px solid var(--line)}
.exg .steps li>span{flex:0 0 38px;height:38px;display:grid;place-items:center;background:var(--cyan2);border-radius:50%;font-weight:800}
.exg .steps h3{font:600 18px Space Grotesk,sans-serif;margin:3px 0}
.exg .steps p{margin:3px 0;font-size:14px}

.exg .visa-section{padding:42px;background:var(--navy);color:#fff;border-radius:22px;box-shadow:var(--shadow)}
.exg .visa-section h2{color:#fff}
.exg .visa-section p{color:#b8c8d5}
.exg .checklist{margin-top:30px;padding:26px;background:#102a47;border:1px solid #264561;border-radius:14px}
.exg .checklist h3{font:600 17px Space Grotesk,sans-serif;margin-top:0}
.exg .checklist ul{list-style:none;padding:0;columns:2;column-gap:30px}
.exg .checklist li{position:relative;padding:8px 0 8px 24px;color:#ccdae5;font-size:13px;break-inside:avoid}
.exg .checklist li:before{content:"\2713";position:absolute;left:0;color:var(--cyan);font-weight:800}
.exg .visa-action{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:28px}
.exg .visa-action div{max-width:420px}
.exg .visa-action small{color:var(--orange);font-weight:800;text-transform:uppercase;letter-spacing:.12em}
.exg .visa-action p{margin:4px 0;font-size:12px}

.exg .accordion details{border-top:1px solid var(--line)}
.exg .accordion details:last-child{border-bottom:1px solid var(--line)}
.exg .accordion summary{list-style:none;display:flex;justify-content:space-between;gap:20px;padding:22px 0;cursor:pointer;font-weight:700}
.exg .accordion summary::-webkit-details-marker{display:none}
.exg .accordion summary span{font-size:24px;color:var(--orange);transition:.2s}
.exg .accordion details[open] summary span{transform:rotate(45deg)}
.exg .accordion details p{margin-top:-8px;padding:0 40px 20px 0;font-size:14px}

.exg .article-footer{display:flex;justify-content:space-between;gap:30px;border-top:1px solid var(--line);padding-top:26px;font-size:12px;color:var(--muted)}
.exg .article-footer p{max-width:500px;margin:0}
.exg .article-footer a{font-weight:700;color:#bd4b24;white-space:nowrap}

/* the floating "visa help" prompt is now the shared global component
   assets/js/expo-visa-prompt.js (used across every Expo page site-wide). */

/* ---------- responsive ---------- */
@media(max-width:900px){
  .exg .event-strip{grid-template-columns:1fr 1fr}
  .exg .event-strip>div:nth-child(2){border-right:0}
  .exg .page-shell{grid-template-columns:1fr;padding-top:45px}
  .exg .toc{display:none}
  .exg .hero h1{font-size:clamp(3rem,12vw,5rem)}
  .exg .split-copy{grid-template-columns:1fr;gap:0}
}
@media(max-width:600px){
  .exg .hero{padding-top:54px}
  .exg .eyebrow{align-items:flex-start;flex-direction:column;gap:4px}
  .exg .eyebrow time:before{display:none}
  .exg .hero-actions{flex-direction:column;align-items:stretch}
  .exg .event-strip{grid-template-columns:1fr}
  .exg .event-strip>div{padding:20px 0;border-right:0;border-bottom:1px solid #2a4157}
  .exg .optic-grid{display:none}
  .exg .page-shell{padding-left:18px;padding-right:18px}
  .exg .article-meta{flex-wrap:wrap}
  .exg .article-meta button{margin-left:0}
  .exg .content-section{margin:55px 0}
  .exg .ai-overview,.exg .visa-section{padding:25px 22px}
  .exg .stats{grid-template-columns:1fr}
  .exg .stats div{border-right:0;border-bottom:1px solid var(--line)}
  .exg .stats div:last-child{border-bottom:0}
  .exg .schedule-row{grid-template-columns:.8fr 1fr 1.25fr;padding:13px 10px;font-size:12px}
  .exg .topic-grid{grid-template-columns:1fr}
  .exg .checklist ul{columns:1}
  .exg .visa-action{align-items:stretch;flex-direction:column}
  .exg .article-footer{flex-direction:column;align-items:flex-start}
  .exg .hero h1{letter-spacing:-.045em}
}
@media(prefers-reduced-motion:reduce){
  .exg .button{transition:none}
  .exg .button:hover{transform:none}
}
@media print{.exg .progress{display:none}}