/* Interactive Water Exhibits — global stylesheet v2 */

/* Self-hosted Plus Jakarta Sans (latin subset).
   Served from our own domain — no request ever leaves the visitor's browser
   for Google, so no consent is required to load the site's typography.
   Files live in /assets/fonts/. Do not replace these with a
   fonts.googleapis.com <link>: that would send visitor IPs to Google on
   every page view, before the cookie banner is even shown. */
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:400;font-display:swap;src:url("/assets/fonts/plus-jakarta-sans-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:500;font-display:swap;src:url("/assets/fonts/plus-jakarta-sans-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:600;font-display:swap;src:url("/assets/fonts/plus-jakarta-sans-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:700;font-display:swap;src:url("/assets/fonts/plus-jakarta-sans-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:800;font-display:swap;src:url("/assets/fonts/plus-jakarta-sans-latin-800-normal.woff2") format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-style:italic;font-weight:400;font-display:swap;src:url("/assets/fonts/plus-jakarta-sans-latin-400-italic.woff2") format("woff2")}

:root{
  --navy:#071f3d;
  --navy-2:#0c3562;
  --ink:#1c2b3a;
  --muted:#5a6b7d;
  --aqua:#0ea5e9;
  --aqua-deep:#0369a1;
  --aqua-bright:#38bdf8;
  --aqua-light:#e8f6fd;
  --line:#e2ebf3;
  --bg-soft:#f4f9fd;
  --white:#fff;
  --radius:16px;
  --shadow:0 6px 24px rgba(7,31,61,.09);
  --shadow-lg:0 18px 44px rgba(7,31,61,.16);
  --grad:linear-gradient(135deg,var(--aqua-bright),var(--aqua-deep));
  --font:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);line-height:1.7;background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--aqua-deep);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1160px;margin:0 auto;padding:0 22px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:8px 16px;z-index:100}
.skip-link:focus{left:0}
::selection{background:var(--aqua-bright);color:#fff}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(226,235,243,.7)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 22px;max-width:1160px;margin:0 auto}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:1.02rem;color:var(--navy);text-decoration:none;line-height:1.15;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand svg{flex:none;filter:drop-shadow(0 2px 6px rgba(14,165,233,.35));transition:transform .3s}
.brand:hover svg{transform:rotate(-6deg) scale(1.05)}
.brand small{display:block;font-weight:500;font-size:.66rem;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--ink);font-weight:600;font-size:.92rem;position:relative}
.nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:2px;border-radius:2px;background:var(--grad);transition:width .25s}
.nav a:not(.btn):hover::after,.nav a.active::after{width:100%}
.nav a:hover{color:var(--aqua-deep);text-decoration:none}
.nav a.active{color:var(--aqua-deep)}
.btn{display:inline-block;background:var(--grad);color:#fff;font-weight:700;padding:12px 26px;border-radius:999px;border:none;cursor:pointer;font-size:.95rem;box-shadow:0 4px 14px rgba(14,165,233,.35);transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(14,165,233,.45);text-decoration:none;color:#fff}
.btn-outline{background:#fff;color:var(--navy);border:2px solid var(--navy);box-shadow:none}
.btn-outline:hover{background:var(--navy);color:#fff;box-shadow:0 8px 22px rgba(7,31,61,.25)}
.btn-light{background:#fff;color:var(--navy);box-shadow:0 4px 14px rgba(0,0,0,.18)}
.btn-light:hover{background:var(--aqua-light);color:var(--navy)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.2s}

/* Hero */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(900px 420px at 85% -10%,rgba(56,189,248,.22),transparent 60%),
  radial-gradient(700px 380px at -10% 30%,rgba(3,105,161,.12),transparent 60%),
  linear-gradient(180deg,var(--aqua-light) 0%,#fdfeff 100%)}
.hero .container{position:relative;z-index:2}
.hero{padding:76px 0 90px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.eyebrow{display:inline-block;font-size:.76rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--aqua-deep);margin-bottom:16px;background:rgba(56,189,248,.14);padding:6px 14px;border-radius:999px}
h1{font-size:clamp(2rem,4.4vw,3.1rem);line-height:1.12;color:var(--navy);letter-spacing:-.03em;font-weight:800}
h1 .accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.12rem;color:var(--muted);margin:20px 0 30px;max-width:56ch}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-img{border-radius:20px;box-shadow:var(--shadow-lg);width:100%;height:auto;object-fit:cover;transform:rotate(.6deg)}
.hero-img-wrap{position:relative}
.hero-img-wrap::before{content:"";position:absolute;inset:-14px -14px auto auto;width:120px;height:120px;border-radius:32px;background:var(--grad);opacity:.16;z-index:-1}

/* Hero slider */
.hero-grid--slider{grid-template-columns:.82fr 1.18fr;align-items:center}
.hero-slider{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:16/10;background:var(--navy)}
.hero-slider img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .9s ease;transform:none}
.hero-slider img.active{opacity:1}
.slider-dots{position:absolute;bottom:14px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:3}
.slider-dots button{width:9px;height:9px;border-radius:999px;border:0;padding:0;background:rgba(255,255,255,.55);cursor:pointer;transition:width .25s,background .25s}
.slider-dots button.active{background:#fff;width:24px}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border-radius:50%;border:0;cursor:pointer;background:rgba(7,31,61,.42);color:#fff;font-size:1.25rem;line-height:1;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);transition:background .2s,transform .2s;opacity:.85}
.slider-arrow:hover{background:rgba(7,31,61,.7);opacity:1}
.slider-arrow.prev{left:12px}
.slider-arrow.next{right:12px}
.slider-caption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:44px 20px 34px;background:linear-gradient(transparent,rgba(7,31,61,.72));color:#fff;font-size:.88rem;font-weight:600;text-align:center;pointer-events:none}
.slider-caption span{opacity:0;transition:opacity .6s;position:absolute;left:0;right:0;bottom:34px}
.slider-caption span.active{opacity:1}
.trust{display:flex;gap:40px;flex-wrap:wrap;margin-top:46px;padding-top:30px;border-top:1px solid rgba(7,31,61,.09)}
.trust div strong{display:block;font-size:1.65rem;color:var(--navy);font-weight:800;letter-spacing:-.02em}
.trust div span{font-size:.86rem;color:var(--muted)}

/* Rising bubbles */
.bubbles{position:absolute;inset:0;z-index:1;pointer-events:none}
.bubbles span{position:absolute;bottom:-60px;border-radius:50%;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.9),rgba(56,189,248,.25) 60%,rgba(14,165,233,.15));border:1px solid rgba(56,189,248,.35);animation:rise linear infinite;opacity:0}
.bubbles span:nth-child(1){left:6%;width:26px;height:26px;animation-duration:13s;animation-delay:0s}
.bubbles span:nth-child(2){left:18%;width:14px;height:14px;animation-duration:17s;animation-delay:3s}
.bubbles span:nth-child(3){left:34%;width:20px;height:20px;animation-duration:15s;animation-delay:6s}
.bubbles span:nth-child(4){left:55%;width:12px;height:12px;animation-duration:19s;animation-delay:2s}
.bubbles span:nth-child(5){left:72%;width:30px;height:30px;animation-duration:14s;animation-delay:8s}
.bubbles span:nth-child(6){left:86%;width:16px;height:16px;animation-duration:18s;animation-delay:5s}
.bubbles span:nth-child(7){left:44%;width:10px;height:10px;animation-duration:21s;animation-delay:10s}
@keyframes rise{
  0%{transform:translateY(0) translateX(0);opacity:0}
  8%{opacity:.75}
  90%{opacity:.55}
  100%{transform:translateY(-105vh) translateX(24px);opacity:0}
}

/* Wave divider */
.wave{line-height:0;position:relative;z-index:2;margin-top:-1px}
.wave svg{display:block;width:100%;height:64px}
.wave-hero{position:absolute;left:0;right:0;bottom:-1px;z-index:2}

/* Sections */
section{padding:72px 0}
.section-soft{background:var(--bg-soft)}
h2{font-size:clamp(1.55rem,3vw,2.2rem);color:var(--navy);letter-spacing:-.02em;margin-bottom:12px;font-weight:800}
.section-intro{color:var(--muted);max-width:64ch;margin-bottom:40px;font-size:1.02rem}
h3{color:var(--navy);font-size:1.14rem;margin-bottom:8px;font-weight:700}

/* Reveal animations (only when JS present) */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.visible{opacity:1;transform:none}
.js .grid-3 .reveal:nth-child(2),.js .features .reveal:nth-child(2){transition-delay:.1s}
.js .grid-3 .reveal:nth-child(3),.js .features .reveal:nth-child(3){transition-delay:.2s}
.js .grid-3 .reveal:nth-child(4){transition-delay:.05s}
.js .grid-3 .reveal:nth-child(5){transition-delay:.15s}
.js .grid-3 .reveal:nth-child(6){transition-delay:.25s}

/* Cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s,transform .3s;display:flex;flex-direction:column}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.card .card-media{overflow:hidden;display:block}
.card img{aspect-ratio:16/10;object-fit:cover;width:100%;transition:transform .5s ease}
.card:hover img{transform:scale(1.06)}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-body p{color:var(--muted);font-size:.93rem;flex:1}
.card a.card-link{font-weight:700;color:var(--aqua-deep);font-size:.92rem}
.card h3 a{color:var(--navy)}
.card h3 a:hover{color:var(--aqua-deep);text-decoration:none}
.tag{display:inline-block;background:var(--aqua-light);color:var(--aqua-deep);font-size:.74rem;font-weight:700;padding:4px 12px;border-radius:999px;margin-right:6px}

/* Feature list */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.feature{background:#fff;border-radius:var(--radius);padding:30px;border:1px solid var(--line);transition:box-shadow .3s,transform .3s}
.feature:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.feature .icon{width:50px;height:50px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:#fff;box-shadow:0 6px 16px rgba(14,165,233,.3)}
.feature p{color:var(--muted);font-size:.94rem}

/* Consent banner */
#consent-banner{position:fixed;left:16px;right:16px;bottom:16px;z-index:300;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:20px 22px;max-width:540px;margin-left:auto;font-size:.9rem;animation:consent-in .4s ease}
@keyframes consent-in{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
#consent-banner p{color:var(--muted);margin-bottom:14px;line-height:1.55}
#consent-banner strong{color:var(--navy)}
.consent-actions{display:flex;gap:10px;flex-wrap:wrap}
#consent-banner .btn{padding:9px 18px;font-size:.85rem}

/* Lightbox */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(7,31,61,.93);display:none;align-items:center;justify-content:center}
.lightbox.open{display:flex}
.lightbox img{max-width:min(92vw,1400px);max-height:88vh;width:auto;height:auto;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb-close{position:absolute;top:14px;right:20px;font-size:2.2rem;line-height:1;background:none;border:0;color:#fff;cursor:pointer;z-index:2}
.lb-prev,.lb-next{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:0;background:rgba(255,255,255,.15);color:#fff;font-size:1.5rem;cursor:pointer;transition:background .2s}
.lb-prev{left:16px}.lb-next{right:16px}
.lb-prev:hover,.lb-next:hover{background:rgba(255,255,255,.32)}

/* Exhibit page */
.page-head{position:relative;overflow:hidden;background:
  radial-gradient(700px 320px at 90% -20%,rgba(56,189,248,.2),transparent 60%),
  linear-gradient(180deg,var(--aqua-light),#fff);padding:56px 0 40px}
.page-head .container{position:relative;z-index:2}
.breadcrumbs{font-size:.84rem;color:var(--muted);margin-bottom:16px}
.breadcrumbs a{color:var(--muted)}
.meta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:38px 0}
.gallery img{border-radius:12px;aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .35s,box-shadow .35s}
.gallery img:hover{transform:scale(1.025);box-shadow:var(--shadow)}
.gallery img.tall{grid-row:span 2;aspect-ratio:auto;height:100%}
.prose{max-width:74ch}
.prose p{margin-bottom:18px}
.prose h2{margin-top:40px;font-size:1.5rem}
.prose ol,.prose ul{margin:0 0 18px 22px}
.prose li{margin-bottom:10px}
.specs{background:linear-gradient(180deg,var(--bg-soft),#fff);border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:sticky;top:92px;box-shadow:var(--shadow)}
.specs dt{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-top:16px;font-weight:700}
.specs dt:first-child{margin-top:0}
.specs dd{font-weight:700;color:var(--navy)}
.exhibit-layout{display:grid;grid-template-columns:1fr 300px;gap:48px;align-items:start}

/* YouTube facade */
.video-wrap{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);margin:38px 0;aspect-ratio:16/9;background:var(--navy)}
.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.yt-embed{position:absolute;inset:0;width:100%;height:100%;cursor:pointer;border:0;padding:0;background:none;display:block}
.yt-embed img{width:100%;height:100%;object-fit:cover;opacity:.92;transition:opacity .3s,transform .5s}
.yt-embed:hover img{opacity:1;transform:scale(1.03)}
.yt-embed::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:76px;height:76px;border-radius:50%;background:var(--grad) ;box-shadow:0 8px 28px rgba(7,31,61,.45);transition:transform .25s}
.yt-embed::before{content:"";position:absolute;top:50%;left:50%;transform:translate(-40%,-50%);border-left:22px solid #fff;border-top:13px solid transparent;border-bottom:13px solid transparent;z-index:2}
.yt-embed:hover::after{transform:translate(-50%,-50%) scale(1.1)}

/* Native video (case studies) */
.video-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:34px 0;align-items:start}
.video-native{width:100%;max-height:560px;border-radius:14px;box-shadow:var(--shadow);background:#000;display:block}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:#fff;transition:box-shadow .25s}
.faq details:hover{box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);padding:18px 24px;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);color:var(--aqua-deep);font-size:1.3rem;font-weight:400;transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{padding:0 24px 18px;color:var(--muted)}

/* CTA band */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--navy) 0%,var(--navy-2) 55%,var(--aqua-deep) 100%);background-size:180% 180%;animation:drift 14s ease-in-out infinite alternate;color:#fff;text-align:center;padding:80px 20px}
@keyframes drift{from{background-position:0% 30%}to{background-position:100% 70%}}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:#c6d7e8;margin-bottom:28px}

/* Footer */
.site-footer{background:var(--navy);color:#b4c6d8;padding:60px 0 30px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;margin-bottom:38px}
.site-footer h4{color:#fff;font-size:.92rem;margin-bottom:14px;letter-spacing:.02em}
.site-footer a{color:#b4c6d8;display:block;margin-bottom:8px}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:24px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.84rem;color:#8aa2b9}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;margin-bottom:12px}

/* Case study */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:38px 0}
.stat{background:linear-gradient(180deg,var(--bg-soft),#fff);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center;transition:transform .25s,box-shadow .25s}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.stat strong{display:block;font-size:1.5rem;color:var(--navy);font-weight:800}
.stat span{font-size:.84rem;color:var(--muted)}

/* Reduced motion */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}

/* Responsive */
@media(max-width:900px){
  .hero-grid,.hero-grid--slider,.exhibit-layout{grid-template-columns:1fr}
  .hero-slider{aspect-ratio:16/10}
  .grid-3,.features{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .specs{position:static}
  .hero{padding:56px 0 80px}
}
@media(max-width:640px){
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:18px 24px;border-bottom:1px solid var(--line);gap:16px;box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav-toggle{display:block}
  .grid-3,.grid-2,.features{grid-template-columns:1fr}
  .trust{gap:24px}
  section{padding:48px 0}
  .hero{padding:44px 0 72px}
  .wave svg{height:38px}
}