/* ============================================================
   VistaStay Med — Design System
   Navy/teal clinical palette + amber accent, Space Grotesk display,
   Inter body, IBM Plex Mono for spec/reference labels.
   ============================================================ */

:root{
  --navy: #0A2E4D;
  --navy-deep: #071F36;
  --navy-soft: #12456F;
  --teal: #087A7A;
  --teal-bright: #14C7B8;
  --teal-pale: #E4F5F3;
  --amber: #F5A623;
  --amber-deep: #DC8A0E;
  --bg: #F6FAFA;
  --surface: #FFFFFF;
  --ink: #0F2430;
  --ink-soft: #4B6373;
  --ink-faint: #5B7280;
  --line: #E1EBEC;
  --line-strong: #CBDBDC;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(10,46,77,0.06), 0 1px 1px rgba(10,46,77,0.04);
  --shadow-md: 0 8px 24px rgba(10,46,77,0.10);
  --shadow-lg: 0 20px 50px rgba(10,46,77,0.16);
  --container: 1320px;
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img{ max-width:100%; display:block; }
iframe{ max-width:100%; }
section{ content-visibility:auto; contain-intrinsic-size: 720px; }
body{ overflow-x:hidden; }
a{ color: inherit; text-decoration: none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ font-family: var(--font-display); color: var(--navy); margin:0 0 .5em; line-height:1.15; letter-spacing:-0.01em; }
p{ margin:0 0 1em; color: var(--ink-soft); }
button{ font-family: inherit; cursor:pointer; }
.container{ max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.mono{ font-family: var(--font-mono); }

:focus-visible{ outline: 2px solid var(--teal-bright); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--teal);
  background: var(--teal-pale); border:1px solid #CDEDEA;
  padding: 6px 12px; border-radius: 999px; margin-bottom: 18px;
}
.eyebrow .dot{ width:6px; height:6px; border-radius:50%; background: var(--amber); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1.5px solid transparent; transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn-primary{ background: var(--amber); color: var(--navy-deep); box-shadow: var(--shadow-sm); }
.btn-primary:hover{ background: var(--amber-deep); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline{ background: transparent; border-color: rgba(255,255,255,.4); color: #fff; }
.btn-outline:hover{ background: rgba(255,255,255,.12); transform: translateY(-2px); }
.btn-ghost{ background: transparent; border-color: var(--line-strong); color: var(--navy); }
.btn-ghost:hover{ border-color: var(--teal); color: var(--teal); }
.btn-sm{ padding: 9px 18px; font-size: 13px; }
.btn-block{ width:100%; }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; height: 76px; }
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height: 46px; width:auto; }
.brand-text{ font-family: var(--font-mono); font-size:11px; letter-spacing:.1em; color: var(--ink-faint); text-transform: uppercase; display:none; }
.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{
  font-weight: 600; font-size: 14.5px; color: var(--navy); position:relative; padding: 6px 0;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px; background: var(--amber);
  transform: scaleX(0); transform-origin: left; transition: transform .2s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{ transform: scaleX(1); }
.nav-links a.active{ color: var(--teal); }
.nav-cta{ display:flex; align-items:center; gap:18px; }
.nav-phone{ font-family: var(--font-mono); font-size: 13px; color: var(--ink-soft); display:flex; align-items:center; gap:6px; }
.nav-toggle{ display:none; background:none; border:none; padding:8px; }
.nav-toggle span{ display:block; width:24px; height:2px; background: var(--navy); margin:5px 0; transition: transform .2s, opacity .2s; }

@media (max-width: 920px){
  .nav-phone{ display:none; }
  .nav-links{
    position: fixed; inset: 76px 0 0 0; background: var(--surface);
    flex-direction: column; align-items:flex-start; gap:0; padding: 10px 24px 30px;
    transform: translateY(-8px); opacity:0; pointer-events:none; transition: all .22s ease;
    border-top: 1px solid var(--line); overflow-y:auto;
  }
  .nav-links.open{ transform: translateY(0); opacity:1; pointer-events:auto; }
  .nav-links a{ width:100%; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-toggle{ display:block; }
  .nav-cta .btn{ display:none; }
}

/* ---------- Hero ---------- */
.hero{
  position: relative; overflow:hidden;
  background: radial-gradient(1100px 500px at 15% -10%, #123B5E 0%, var(--navy) 45%, var(--navy-deep) 100%);
  color: #fff; padding: 76px 0 96px;
}
.hero .container{ display:grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items:center; }
.hero h1{ color:#fff; font-size: clamp(34px, 4.4vw, 56px); margin-bottom: 20px; }
.hero h1 em{ font-style: normal; color: var(--teal-bright); }
.hero p.lead{ color: rgba(255,255,255,.78); font-size: 17px; max-width: 480px; margin-bottom: 30px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom: 40px; }
.hero-trust{ display:flex; gap: 28px; flex-wrap:wrap; }
.hero-trust div{ display:flex; flex-direction:column; }
.hero-trust strong{ font-family: var(--font-display); font-size: 22px; color:#fff; }
.hero-trust span{ font-size: 12.5px; color: rgba(255,255,255,.6); font-family: var(--font-mono); text-transform:uppercase; letter-spacing:.06em; }

.hero-visual{ position:relative; height: 460px; }
.ecg-line{ position:absolute; inset:0; width:100%; height:100%; opacity:.55; }
.ecg-path{ fill:none; stroke: var(--teal-bright); stroke-width:2; stroke-linecap:round; stroke-linejoin:round; stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: draw 3.6s ease-in-out infinite; }
@keyframes draw{ 0%{ stroke-dashoffset: 1400; } 55%{ stroke-dashoffset:0; } 100%{ stroke-dashoffset:-1400; } }

.hero-collage{ position:relative; height:100%; }
.hero-card{
  position:absolute; background:#fff; border-radius: var(--radius); padding:10px; box-shadow: var(--shadow-lg);
  width: 190px; transform: rotate(var(--r,0deg));
}
.hero-card img{ border-radius: 8px; width:100%; height:150px; object-fit:cover; }
.hero-card .cap{ font-family: var(--font-mono); font-size:10.5px; color: var(--ink-faint); padding: 8px 4px 2px; text-transform:uppercase; letter-spacing:.05em; }
.hero-card.c1{ top: 6%; left: 4%; --r:-6deg; }
.hero-card.c2{ top: 30%; right: 0%; --r:5deg; width:170px; z-index:2; }
.hero-card.c3{ bottom: 4%; left: 18%; --r:3deg; width:200px; }
.badge-floating{
  position:absolute; top:8%; right:14%; background: var(--amber); color: var(--navy-deep);
  font-family: var(--font-mono); font-size: 11.5px; font-weight:700; padding: 8px 14px; border-radius: 999px;
  box-shadow: var(--shadow-md); transform: rotate(6deg);
}

@media (max-width: 980px){
  .hero .container{ grid-template-columns: 1fr; }
  .hero-visual{ height: 340px; margin-top: 10px; }
  .hero-card{ width: 150px; }
  .hero-card img{ height:110px; }
}


/* ---------- Hero 3D model ---------- */
.hero-3d-visual{ height:auto; min-height:520px; display:flex; flex-direction:column; justify-content:center; position:relative; }
.hero-3d-badge{ position:absolute; top:0; right:10px; z-index:3; background:rgba(7,31,54,.88); border:1px solid rgba(255,255,255,.16); color:#fff; padding:9px 14px; border-radius:999px; font-family:var(--font-mono); font-size:11px; letter-spacing:.06em; box-shadow:var(--shadow-md); }
.live-dot{ display:inline-block; width:7px; height:7px; border-radius:50%; background:var(--amber); margin-right:7px; box-shadow:0 0 0 4px rgba(245,166,35,.12); }
.hero-3d-stage{ width:100%; aspect-ratio:16/10; min-height:420px; background:#051423; border:1px solid rgba(255,255,255,.12); border-radius:24px; overflow:hidden; box-shadow:0 24px 60px rgba(0,0,0,.28); position:relative; }
.hero-3d-stage iframe{ width:100%; height:100%; border:0; display:block; }
.hero-3d-placeholder{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px; text-align:center; color:#fff; padding:30px; background:radial-gradient(circle at 50% 35%, rgba(20,199,184,.15), transparent 48%), #071F36; }
.hero-3d-placeholder strong{ font-family:var(--font-display); font-size:20px; }
.hero-3d-placeholder span{ color:rgba(255,255,255,.62); font-size:13px; }
.hero-3d-icon{ width:72px; height:72px; border-radius:22px; display:grid; place-items:center; background:rgba(20,199,184,.12); border:1px solid rgba(20,199,184,.35); color:var(--teal-bright); font-size:42px; line-height:1; }
.hero-3d-caption{ display:flex; align-items:center; justify-content:space-between; gap:16px; margin-top:12px; color:rgba(255,255,255,.62); font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.06em; }
.hero-3d-caption a{ color:#fff; }
.hero-3d-caption a:hover{ color:var(--teal-bright); }
@media (max-width: 1100px){ .hero .container{ gap:34px; } .hero-3d-visual{ min-height:460px; } .hero-3d-stage{ min-height:360px; } }
@media (max-width: 980px){ .hero-3d-visual{ min-height:0; } .hero-3d-stage{ min-height:360px; } .hero-3d-badge{ right:14px; } }
@media (max-width: 600px){ .hero-3d-stage{ min-height:280px; border-radius:18px; } .hero-3d-caption{ flex-direction:column; align-items:flex-start; } .hero-3d-badge{ font-size:9px; padding:7px 10px; } }

/* ---------- Windows / large monitor and touch-screen tuning ---------- */
@media (min-width: 1600px){
  :root{ --container: 1400px; }
  .hero{ padding-top:90px; padding-bottom:110px; }
  .hero h1{ font-size:64px; }
}
@media (pointer: coarse){
  .btn, .vr-tab, .nav-links a{ min-height:44px; }
}

/* ---------- Section basics ---------- */
section{ padding: 88px 0; }
.section-head{ max-width: 640px; margin-bottom: 48px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{ font-size: clamp(26px, 3vw, 38px); }
.bg-navy{ background: var(--navy); color:#fff; }
.bg-navy h2, .bg-navy h3{ color:#fff; }
.bg-navy p{ color: rgba(255,255,255,.72); }
.bg-alt{ background: var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

/* ---------- Category / specialty cards ---------- */
.cat-grid{ display:grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
@media (max-width: 1080px){ .cat-grid{ grid-template-columns: repeat(3,1fr); } }
@media (max-width: 640px){ .cat-grid{ grid-template-columns: repeat(2,1fr); } }

.cat-card{
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 20px; text-align:center; transition: transform .2s ease, box-shadow .2s ease, border-color .2s;
}
.cat-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--teal-bright); }
.cat-card .icon{
  width:56px; height:56px; margin: 0 auto 16px; border-radius:14px;
  background: var(--teal-pale); display:flex; align-items:center; justify-content:center;
  color: var(--teal);
}
.cat-card h3{ font-size: 16px; margin-bottom:6px; }
.cat-card .count{ font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint); }

/* ---------- HD photo gallery ---------- */
.gallery-grid{ display:grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 200px; gap: 16px; }
.gallery-item{ position:relative; border-radius: var(--radius); overflow:hidden; background:#EFF5F5; display:block; }
.gallery-item.span-2{ grid-column: span 2; grid-row: span 2; }
.gallery-item img{ width:100%; height:100%; object-fit: cover; transition: transform .35s ease; }
.gallery-item:hover img{ transform: scale(1.06); }
.gallery-cap{
  position:absolute; left:0; right:0; bottom:0; padding: 14px 16px;
  background: linear-gradient(0deg, rgba(7,31,54,.82), transparent);
  color:#fff; font-size: 13px; font-weight:600; font-family: var(--font-display);
}
@media (max-width: 900px){
  .gallery-grid{ grid-template-columns: repeat(2,1fr); grid-auto-rows: 170px; }
  .gallery-item.span-2{ grid-column: span 2; grid-row: span 1; }
}

/* ---------- VR / 3D section ---------- */
.vr-section{ background: var(--navy-deep); color:#fff; position:relative; overflow:hidden; }
.vr-section::before{
  content:""; position:absolute; inset:0;
  background: radial-gradient(700px 400px at 85% 10%, rgba(20,199,184,.18), transparent 60%);
}
.vr-wrap{ position:relative; display:grid; grid-template-columns: minmax(280px,.8fr) minmax(0,1.2fr); gap: 48px; align-items:start; }
@media (max-width: 940px){ .vr-wrap{ grid-template-columns:1fr; } }
.vr-tabs{ display:flex; flex-direction:column; gap:10px; }
.vr-tab{
  text-align:left; background: rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.12);
  border-radius: 12px; padding: 16px 18px; color: #fff; transition: all .2s ease;
}
.vr-tab strong{ display:block; font-family: var(--font-display); font-size:16px; margin-bottom:3px; }
.vr-tab span{ font-size: 12.5px; color: rgba(255,255,255,.55); }
.vr-tab.active{ background: rgba(20,199,184,.14); border-color: var(--teal-bright); }
.vr-tab:hover{ border-color: rgba(255,255,255,.32); }
.vr-stage{
  min-width:0;
  background: #051423; border-radius: var(--radius); overflow:hidden; border:1px solid rgba(255,255,255,.1);
  box-shadow: var(--shadow-lg); aspect-ratio: 4/3; position:relative;
}
.vr-stage iframe{ width:100%; height:100%; border:0; }
.vr-stage .vr-placeholder{
  position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:14px;
  color: rgba(255,255,255,.5); font-family: var(--font-mono); font-size: 13px; text-align:center; padding: 20px;
}
.vr-note{ margin-top:16px; font-size:13px; color: rgba(255,255,255,.5); }

/* ---------- Credentials / stats ---------- */
.cred-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
@media (max-width: 900px){ .cred-grid{ grid-template-columns: repeat(2,1fr); } }
.cred-card{ padding: 26px; border-radius: var(--radius); background: var(--surface); border:1px solid var(--line); }
.cred-card .num{ font-family: var(--font-display); font-size: 34px; color: var(--teal); }
.cred-card .lbl{ font-size: 13.5px; color: var(--ink-soft); margin-top:4px; }

.badge-row{ display:flex; gap:14px; flex-wrap:wrap; margin-top: 26px; }
.pill-badge{
  display:flex; align-items:center; gap:8px; background: var(--teal-pale); border:1px solid #CDEDEA;
  color: var(--navy); padding: 9px 16px; border-radius: 999px; font-size: 13px; font-weight:600;
}
.pill-badge svg{ color: var(--teal); }

/* ---------- Featured products / grid cards ---------- */
.product-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
@media (max-width: 1080px){ .product-grid{ grid-template-columns: repeat(3,1fr); } }
@media (max-width: 760px){ .product-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 480px){ .product-grid{ grid-template-columns: 1fr 1fr; gap:14px; } }

.product-card{
  background: var(--surface); border:1px solid var(--line); border-radius: var(--radius);
  overflow:hidden; display:flex; flex-direction:column; transition: transform .18s ease, box-shadow .18s ease;
  cursor:pointer; text-align:left; width:100%; padding:0;
}
.product-card:hover{ transform: translateY(-5px); box-shadow: var(--shadow-md); }
.product-card .thumb{
  aspect-ratio: 1/1; background: #EFF5F5; display:flex; align-items:center; justify-content:center; overflow:hidden; position:relative;
}
.product-card .thumb img{ width:100%; height:100%; object-fit:contain; padding:10px; }
.product-card .thumb .ph-icon{ color: var(--teal); opacity:.35; }
.product-card .ref{
  position:absolute; top:8px; left:8px; font-family: var(--font-mono); font-size:10px; background: rgba(10,46,77,.75);
  color:#fff; padding:2px 7px; border-radius:5px; letter-spacing:.03em;
}
.product-card .body{ padding: 14px 16px 18px; display:flex; flex-direction:column; gap:6px; flex:1; }
.product-card .cat-tag{ font-family: var(--font-mono); font-size:10.5px; color: var(--teal); text-transform:uppercase; letter-spacing:.06em; }
.product-card h4{ font-family: var(--font-body); font-weight:700; font-size: 14.5px; color: var(--navy); margin:0; line-height:1.35; }
.product-card p{ font-size: 12.5px; color: var(--ink-faint); margin:0; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.product-card .view-link{ margin-top:auto; font-size: 12.5px; font-weight:700; color: var(--navy); display:flex; align-items:center; gap:4px; padding-top:6px; }

/* ---------- CTA banner ---------- */
.cta-banner{
  background: linear-gradient(120deg, var(--navy) 0%, var(--teal) 130%);
  border-radius: 24px; padding: 56px 48px; color:#fff; display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap;
}
.cta-banner h2{ color:#fff; margin-bottom:8px; font-size: clamp(24px,3vw,32px); }
.cta-banner p{ color: rgba(255,255,255,.8); margin:0; max-width: 480px; }

@media (max-width: 760px){
  .container{ padding-left:18px; padding-right:18px; }
  section{ padding:64px 0; }
  .hero{ padding:56px 0 70px; }
  .hero h1{ font-size:clamp(34px,9vw,48px); }
  .hero-trust{ gap:18px 24px; }
  .cred-grid{ gap:14px; }
  .cta-banner{ padding:38px 26px; border-radius:18px; }
}

/* ---------- Footer ---------- */
.site-footer{ background: var(--navy-deep); color: rgba(255,255,255,.7); padding: 64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 48px; }
@media (max-width: 860px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-grid h4{ color:#fff; font-size:14px; text-transform:uppercase; letter-spacing:.06em; font-family: var(--font-mono); margin-bottom:16px; }
.footer-grid ul li{ margin-bottom:10px; }
.footer-grid ul li a:hover{ color: var(--teal-bright); }
.footer-brand img{ width:220px; height:auto; max-height:78px; object-fit:contain; object-position:left center; margin-bottom:14px; filter:none; display:block; }
.footer-brand p{ font-size: 13.5px; max-width: 280px; }
.footer-bottom{
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 22px; display:flex; justify-content:space-between;
  flex-wrap:wrap; gap:10px; font-size: 12.5px; color: rgba(255,255,255,.45);
}
.social-row{ display:flex; gap:10px; margin-top:16px; }
.social-row a{ width:34px; height:34px; border-radius:50%; background: rgba(255,255,255,.08); display:flex; align-items:center; justify-content:center; transition: background .2s; }
.social-row a:hover{ background: var(--teal); }

/* ============ Catalogue page ============ */
.page-hero{
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%); color:#fff; padding: 58px 0 46px;
}
.page-hero h1{ color:#fff; font-size: clamp(28px,4vw,42px); margin-bottom:10px; }
.page-hero p{ color: rgba(255,255,255,.72); max-width: 560px; }
.breadcrumb{ font-family: var(--font-mono); font-size:12px; color: rgba(255,255,255,.5); margin-bottom:16px; text-transform:uppercase; letter-spacing:.06em; }
.breadcrumb a:hover{ color:#fff; }

.catalogue-toolbar{
  position: sticky; top: 76px; z-index: 50; background: rgba(246,250,250,.95); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line); padding: 18px 0;
}
.toolbar-row{ display:flex; gap:16px; align-items:center; flex-wrap:wrap; }
.search-box{
  flex:1; min-width: 240px; display:flex; align-items:center; gap:10px; background:#fff; border:1.5px solid var(--line-strong);
  border-radius: 999px; padding: 11px 18px;
}
.search-box svg{ color: var(--ink-faint); flex-shrink:0; }
.search-box input{ border:none; outline:none; flex:1; font-size:14.5px; font-family: var(--font-body); background:transparent; color: var(--ink); }
.chip-row{ display:flex; gap:8px; flex-wrap:wrap; }
.chip{
  font-size: 13px; font-weight:600; padding: 9px 16px; border-radius:999px; border:1.5px solid var(--line-strong);
  background:#fff; color: var(--ink-soft); white-space:nowrap; transition: all .16s ease;
}
.chip.active{ background: var(--navy); border-color: var(--navy); color:#fff; }
.chip:hover:not(.active){ border-color: var(--teal); color: var(--teal); }
.result-count{ font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-faint); margin-top:12px; }

.catalogue-grid-wrap{ padding: 40px 0 80px; }
.empty-state{ text-align:center; padding: 80px 20px; color: var(--ink-faint); }
.empty-state svg{ margin-bottom: 16px; color: var(--line-strong); }
.load-more-wrap{ text-align:center; margin-top: 40px; }

/* Product modal */
.modal-overlay{
  position: fixed; inset:0; background: rgba(7,31,54,.6); backdrop-filter: blur(3px);
  display:flex; align-items:center; justify-content:center; z-index: 200; padding: 20px;
  opacity:0; pointer-events:none; transition: opacity .2s ease;
}
.modal-overlay.open{ opacity:1; pointer-events:auto; }
.modal-box{
  background:#fff; border-radius: var(--radius); max-width: 880px; width:100%; max-height: 88vh; overflow-y:auto;
  display:grid; grid-template-columns: 1fr 1fr; box-shadow: var(--shadow-lg);
  transform: translateY(16px) scale(.98); transition: transform .22s ease;
}
.modal-overlay.open .modal-box{ transform: translateY(0) scale(1); }
@media (max-width: 720px){ .modal-box{ grid-template-columns: 1fr; } }
.modal-media{ background: #EFF5F5; padding: 28px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; }
.modal-media img{ max-height: 320px; object-fit:contain; border-radius: 10px; }
.modal-thumbs{ display:flex; gap:8px; }
.modal-thumbs img{ width:52px; height:52px; object-fit:cover; border-radius:6px; border:2px solid transparent; cursor:pointer; }
.modal-thumbs img.active{ border-color: var(--teal); }
.modal-info{ padding: 30px 32px; position:relative; }
.modal-close{
  position:absolute; top:16px; right:16px; width:36px; height:36px; border-radius:50%; border:none;
  background: var(--bg); display:flex; align-items:center; justify-content:center; color: var(--ink-soft);
}
.modal-close:hover{ background: var(--line); }
.modal-info .cat-tag{ font-family: var(--font-mono); font-size:11px; color: var(--teal); text-transform:uppercase; letter-spacing:.06em; }
.modal-info h3{ font-size: 22px; margin: 10px 0 14px; }
.modal-info .ref-line{ font-family: var(--font-mono); font-size:12px; color: var(--ink-faint); margin-bottom:18px; }
.modal-actions{ display:flex; gap:10px; margin-top: 24px; flex-wrap:wrap; }

/* ============ About page ============ */
.about-hero{ background: var(--surface); padding: 70px 0; }
.about-hero .container{ display:grid; grid-template-columns: 1fr 1fr; gap:48px; align-items:center; }
@media (max-width: 900px){ .about-hero .container{ grid-template-columns:1fr; } }
.about-hero .art{ background: var(--navy); border-radius: 24px; aspect-ratio: 4/3; display:flex; align-items:center; justify-content:center; overflow:hidden; }
.about-hero .art img{ width:100%; height:100%; object-fit:cover; }

.value-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:24px; }
@media (max-width: 820px){ .value-grid{ grid-template-columns:1fr; } }
.value-card{ padding:28px; border-radius: var(--radius); background:#fff; border:1px solid var(--line); }
.value-card .icon{ width:48px; height:48px; border-radius:12px; background: var(--teal-pale); display:flex; align-items:center; justify-content:center; color:var(--teal); margin-bottom:16px; }

.timeline{ display:flex; flex-direction:column; gap:0; }
.timeline-item{ display:grid; grid-template-columns: 90px 1fr; gap:24px; padding: 26px 0; border-top:1px solid var(--line); }
.timeline-item:last-child{ border-bottom:1px solid var(--line); }
.timeline-item .yr{ font-family: var(--font-mono); color: var(--teal); font-weight:700; }

/* ============ Contact page ============ */
.contact-wrap{ display:grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items:start; }
@media (max-width: 900px){ .contact-wrap{ grid-template-columns:1fr; } }
.form-card{ background:#fff; border:1px solid var(--line); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-sm); }
.field{ margin-bottom: 18px; }
.field label{ display:block; font-size: 13px; font-weight:700; color: var(--navy); margin-bottom:6px; }
.field input, .field select, .field textarea{
  width:100%; border:1.5px solid var(--line-strong); border-radius: 10px; padding: 12px 14px; font-family: var(--font-body);
  font-size: 14.5px; color: var(--ink); background: var(--bg); transition: border-color .16s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color: var(--teal); background:#fff; }
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap:16px; }
@media (max-width:560px){ .field-row{ grid-template-columns:1fr; } }
.contact-info-card{ background: var(--navy); color:#fff; border-radius: var(--radius); padding: 32px; margin-bottom:20px; }
.contact-info-card h3{ color:#fff; }
.info-row{ display:flex; gap:14px; align-items:flex-start; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.12); }
.info-row:first-of-type{ border-top:none; }
.info-row .ic{ width:38px; height:38px; border-radius:10px; background: rgba(255,255,255,.1); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.info-row strong{ display:block; font-size:14px; }
.info-row span{ font-size: 13px; color: rgba(255,255,255,.65); }
.form-note{ font-size: 12.5px; color: var(--ink-faint); margin-top:14px; }
.success-box{ display:none; text-align:center; padding: 40px 20px; }
.success-box.show{ display:block; }
.success-box svg{ color: var(--teal); margin-bottom:14px; }

/* Utility */
.skip-link{ position:absolute; left:-999px; top:0; background:var(--navy); color:#fff; padding:10px 16px; z-index:999; border-radius: 0 0 8px 0; }
.skip-link:focus{ left:0; }
.text-center{ text-align:center; }
.mt-40{ margin-top:40px; }

/* ---------- SEO content & product pages ---------- */
.seo-intro{padding-top:72px;padding-bottom:72px;}
.seo-keyword-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:32px;}
.seo-keyword-grid a{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;color:var(--ink);transition:transform .2s ease,box-shadow .2s ease;}
.seo-keyword-grid a:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.seo-keyword-grid strong{display:block;font-family:var(--font-display);font-size:16px;margin-bottom:7px;}
.seo-keyword-grid span{display:block;font-size:13px;color:var(--ink-soft);line-height:1.55;}
.product-card{color:inherit;text-decoration:none;}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.related-card{display:block;color:inherit;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px;overflow:hidden;}
.related-card img{width:100%;height:170px;object-fit:contain;background:#f7faf9;border-radius:8px;margin-bottom:12px;}
.related-card h3{font-size:15px;line-height:1.35;margin:7px 0 10px;}
.product-detail{padding:78px 0;}
.product-detail-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:58px;align-items:start;}
.product-media{background:#f7faf9;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;position:sticky;top:96px;}
.product-media picture,.product-media picture img{display:block;width:100%;}
.product-media picture img{height:min(620px,58vw);object-fit:contain;background:#fff;border-radius:10px;}
.product-thumbs{display:flex;gap:10px;margin-top:14px;overflow:auto;}
.product-thumbs img{width:82px;height:82px;object-fit:cover;border-radius:8px;border:1px solid var(--line);}
.product-info h2{font-size:clamp(26px,3vw,40px);line-height:1.12;margin:12px 0 18px;}
.product-ref{font-family:var(--font-mono);font-size:12px;color:var(--ink-faint);margin-top:8px;}
.product-description{font-size:16px;line-height:1.75;color:var(--ink-soft);white-space:pre-line;}
.product-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0;}
.product-trust{display:grid;gap:10px;margin-top:30px;}
.product-trust div{border:1px solid var(--line);border-radius:10px;padding:15px 17px;background:var(--surface);}
.product-trust strong{display:block;font-size:13px;margin-bottom:4px;}
.product-trust span{display:block;color:var(--ink-soft);font-size:12.5px;line-height:1.5;}
@media(max-width:900px){.seo-keyword-grid{grid-template-columns:repeat(2,1fr)}.related-grid{grid-template-columns:repeat(2,1fr)}.product-detail-grid{grid-template-columns:1fr;gap:32px}.product-media{position:static}.product-media picture img{height:70vw;max-height:560px}}
@media(max-width:560px){.seo-keyword-grid,.related-grid{grid-template-columns:1fr}.product-actions .btn{width:100%;text-align:center}.footer-brand img{width:190px;max-height:70px}}

.faq-section{background:var(--surface);padding:80px 0;}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:980px;margin:0 auto;}
.faq-grid details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;}
.faq-grid summary{cursor:pointer;font-family:var(--font-display);font-weight:700;font-size:15px;list-style:none;}
.faq-grid summary::-webkit-details-marker{display:none;}
.faq-grid summary:after{content:'+';float:right;font-family:var(--font-mono);color:var(--teal);}
.faq-grid details[open] summary:after{content:'−';}
.faq-grid p{margin:12px 0 0;color:var(--ink-soft);font-size:13.5px;line-height:1.65;}
@media(max-width:700px){.faq-grid{grid-template-columns:1fr;}}


/* ---------- Local heart viewer / accessibility ---------- */
.hero-3d-stage iframe{
  background:radial-gradient(circle at 50% 40%,rgba(20,199,184,.12),transparent 55%),#071F36;
}
.hero-3d-noscript{
  position:absolute; inset:0; display:grid; place-items:center; padding:24px;
  text-align:center; color:#fff; background:#071F36;
}
.hero-3d-noscript a{color:var(--teal-bright);text-decoration:underline}
.mobile-action-bar{display:none}
@media (max-width:920px){
  body{padding-bottom:64px}
  .mobile-action-bar{
    position:fixed; left:0; right:0; bottom:0; z-index:120;
    display:grid; grid-template-columns:1fr 1.5fr;
    background:rgba(7,31,54,.97); border-top:1px solid rgba(255,255,255,.12);
    box-shadow:0 -8px 24px rgba(0,0,0,.18); backdrop-filter:blur(10px);
  }
  .mobile-action-bar a{
    min-height:58px; display:flex; align-items:center; justify-content:center;
    font-weight:700; font-size:14px; color:#fff; border-right:1px solid rgba(255,255,255,.1)
  }
  .mobile-action-bar a:last-child{background:var(--amber);color:var(--navy-deep);border-right:0}
}
@media (min-width:921px){
  .hero-3d-stage iframe{min-height:100%}
}

/* VistaStay Med HD photography — optimized responsive presentation */
.about-hero .art picture{display:block;width:100%;height:100%;}
.about-hero .art img{display:block;width:100%;height:100%;object-fit:cover;object-position:center;}
.about-photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.about-photo-grid figure{margin:0;overflow:hidden;border-radius:var(--radius);background:#EFF5F5;aspect-ratio:4/3;}
.about-photo-grid img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.about-photo-grid figure:hover img{transform:scale(1.04);}
@media (max-width: 700px){.about-photo-grid{grid-template-columns:1fr;}.about-photo-grid figure{aspect-ratio:16/10;}}



/* ============================================================
   VistaStay Med — 2026 Premium Medical Education Theme
   Physical anatomy + clinical simulation + immersive VR
   Performance-first: no extra JS libraries, system-first fonts.
   ============================================================ */
:root{
  --navy:#063B5C; --navy-deep:#032B43; --navy-soft:#0B557B;
  --teal:#008C95; --teal-bright:#19B8B0; --teal-pale:#E6F7F6;
  --amber:#F4A51C; --amber-deep:#D88708;
  --bg:#F7FAFC; --surface:#FFFFFF; --ink:#102A3A; --ink-soft:#506A78; --ink-faint:#6C818C;
  --line:#DCE8EC; --line-strong:#C4D7DD;
  --radius:18px; --radius-sm:11px;
  --shadow-sm:0 1px 2px rgba(3,43,67,.05),0 5px 16px rgba(3,43,67,.05);
  --shadow-md:0 12px 32px rgba(3,43,67,.10);
  --shadow-lg:0 24px 70px rgba(3,43,67,.16);
  --font-display:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-body:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;
}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body)}
h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-.028em}
p{color:var(--ink-soft)}
.site-header{background:rgba(255,255,255,.96);backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(3,43,67,.04)}
.site-header .container{height:74px}
.brand img{height:44px}
.nav-links{gap:26px}
.nav-links a{font-size:14px}
.nav-links a.active{color:var(--teal)}
.nav-links a::after{background:var(--teal-bright)}
.btn{border-radius:12px;padding:13px 20px}
.btn-primary{background:var(--amber);box-shadow:0 6px 18px rgba(244,165,28,.22)}
.btn-primary:hover{background:var(--amber-deep)}
.btn-outline{border-color:rgba(255,255,255,.42)}
.eyebrow{background:var(--teal-pale);border-color:#CBEDEB;color:var(--teal);font-size:11px}
section{content-visibility:auto;contain-intrinsic-size:700px}

/* Premium homepage hero */
.hero{padding:64px 0 76px;background:radial-gradient(900px 500px at 82% 22%,rgba(25,184,176,.18),transparent 58%),linear-gradient(135deg,#063B5C 0%,#032B43 72%)}
.hero .container{grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:54px}
.hero h1{font-size:clamp(40px,5vw,66px);max-width:700px;line-height:1.03}
.hero h1 em{color:#65E0D8}
.hero p.lead{font-size:17px;line-height:1.7;max-width:610px}
.hero-actions{margin-bottom:28px}
.hero-trust{gap:10px;display:grid;grid-template-columns:repeat(4,1fr);max-width:690px}
.hero-trust div{padding:12px 14px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.055);border-radius:12px}
.hero-trust strong{font-size:20px}.hero-trust span{font-size:10px;color:rgba(255,255,255,.68)}
.hero-3d-visual{min-height:0}
.hero-3d-stage{min-height:0;aspect-ratio:4/3;border-radius:28px;background:#041C2D;border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow-lg)}
.hero-poster{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(1.05)}
.hero-poster-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,43,67,.05),rgba(3,43,67,.72));display:flex;align-items:flex-end;padding:24px}
.hero-poster-copy{width:100%;display:flex;align-items:flex-end;justify-content:space-between;gap:18px;color:#fff}
.hero-poster-copy strong{font-size:20px;display:block}.hero-poster-copy span{font-size:12px;color:rgba(255,255,255,.7)}
.hero-3d-stage.is-loaded .hero-poster{display:none}.hero-3d-stage.is-loaded .hero-poster-overlay{display:none}
.hero-3d-stage iframe{position:absolute;inset:0;min-height:0}

/* Pillar cards with imagery */
.solution-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.solution-card{position:relative;min-height:320px;border-radius:18px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}
.solution-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.solution-card img{width:100%;height:190px;object-fit:cover}
.solution-card .solution-body{padding:18px 18px 20px}.solution-card .kicker{font:600 10px var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}
.solution-card h3{font-size:21px;margin:7px 0 7px}.solution-card p{font-size:13px;margin:0}.solution-arrow{display:inline-flex;margin-top:12px;font-weight:700;font-size:12px;color:var(--navy)}

/* Immersive VR block */
.vr-section{background:radial-gradient(900px 500px at 80% 20%,rgba(25,184,176,.18),transparent 60%),linear-gradient(135deg,#032B43,#041A2A);padding:90px 0;color:#fff}
.vr-section h2{font-size:clamp(34px,4.3vw,54px);color:#fff}.vr-section p{color:rgba(255,255,255,.72)}
.vr-wrap{grid-template-columns:minmax(320px,.85fr) minmax(0,1.15fr);gap:54px}
.vr-tab{border-radius:14px;background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.11);padding:15px 16px;text-align:left}.vr-tab.active{background:rgba(25,184,176,.13);border-color:rgba(25,184,176,.72)}
.vr-stage{min-height:500px;border-radius:26px;background:#021725;border-color:rgba(255,255,255,.12);box-shadow:0 30px 80px rgba(0,0,0,.3)}
.vr-stage::after{content:"IMMERSIVE 3D";position:absolute;right:16px;top:16px;font:600 10px var(--font-mono);letter-spacing:.1em;color:rgba(255,255,255,.52);padding:7px 9px;border:1px solid rgba(255,255,255,.12);border-radius:999px;background:rgba(0,0,0,.15)}

/* Photo wall */
.photo-wall{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:150px;gap:12px}
.photo-wall a{position:relative;overflow:hidden;border-radius:16px;background:#eaf1f4;display:block}.photo-wall a:nth-child(1){grid-column:span 4;grid-row:span 2}.photo-wall a:nth-child(2){grid-column:span 3;grid-row:span 2}.photo-wall a:nth-child(3){grid-column:span 2;grid-row:span 2}.photo-wall a:nth-child(4){grid-column:span 3;grid-row:span 2}.photo-wall a:nth-child(5){grid-column:span 3}.photo-wall a:nth-child(6){grid-column:span 3}.photo-wall a:nth-child(7){grid-column:span 3}.photo-wall a:nth-child(8){grid-column:span 3}.photo-wall a:nth-child(9){grid-column:span 4}.photo-wall a:nth-child(10){grid-column:span 4}.photo-wall a:nth-child(11){grid-column:span 4}.photo-wall a:nth-child(12){grid-column:span 4}
.photo-wall img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}.photo-wall a:hover img{transform:scale(1.045)}
.photo-wall .photo-label{position:absolute;left:10px;bottom:10px;color:#fff;font-size:11px;font-weight:700;background:rgba(3,43,67,.76);padding:7px 9px;border-radius:8px;backdrop-filter:blur(5px)}

/* Learning ecosystem */
.ecosystem{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.eco-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;position:relative;overflow:hidden}.eco-card::before{content:"";position:absolute;left:0;top:0;width:5px;height:100%;background:var(--teal-bright)}
.eco-num{font:700 12px var(--font-mono);color:var(--teal);letter-spacing:.08em}.eco-card h3{font-size:25px;margin:10px 0 8px}.eco-card p{margin:0}

/* Stats / trust */
.cred-grid{gap:14px}.cred-card{border-radius:16px;padding:24px;background:#fff}.cred-card .num{color:var(--teal);font-size:32px}

/* Cards and catalogue */
.cat-grid{grid-template-columns:repeat(5,1fr);gap:14px}.cat-card{border-radius:16px;padding:22px}.cat-card:hover{border-color:var(--teal-bright)}
.product-card{border-radius:16px;box-shadow:var(--shadow-sm);border-color:var(--line)}.product-card:hover{box-shadow:var(--shadow-md)}
.product-card .thumb{background:linear-gradient(145deg,#f7fbfc,#edf5f7)}

/* About pages: editorial image-led layout */
.about-hero{padding:78px 0;background:#fff}.about-hero .art{border-radius:24px;box-shadow:var(--shadow-lg);background:#eef5f7}
.value-card{border-radius:16px}.value-card:hover{border-color:#bfe4e1}
.page-hero{padding:58px 0 48px;background:radial-gradient(700px 300px at 75% 0%,rgba(25,184,176,.16),transparent 65%),linear-gradient(135deg,#063B5C,#032B43)}

/* Quote / conversion */
.cta-banner{border-radius:24px;background:radial-gradient(700px 260px at 90% 30%,rgba(25,184,176,.18),transparent 65%),linear-gradient(135deg,#063B5C,#032B43);padding:40px 44px;box-shadow:var(--shadow-lg)}

/* Footer */
.site-footer{background:#021F32;padding:66px 0 26px}.footer-grid h4,.footer-grid h3{color:#fff}.footer-grid ul li a:hover{color:#65E0D8}
.mobile-action-bar{box-shadow:0 -8px 24px rgba(3,43,67,.12)}

/* Small UX improvements */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .45s ease,transform .45s ease}.in-view{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none}}
@media(max-width:1100px){.solution-grid{grid-template-columns:repeat(2,1fr)}.hero-trust{grid-template-columns:repeat(2,1fr)}.photo-wall{grid-auto-rows:130px}}
@media(max-width:900px){.hero .container,.vr-wrap{grid-template-columns:1fr}.hero{padding-top:48px}.hero-3d-stage{max-width:760px}.solution-grid{grid-template-columns:repeat(2,1fr)}.ecosystem{grid-template-columns:1fr}.photo-wall{grid-template-columns:repeat(6,1fr);grid-auto-rows:120px}.photo-wall a{grid-column:span 2!important;grid-row:span 2!important}.photo-wall a:nth-child(1),.photo-wall a:nth-child(4){grid-column:span 3!important}.vr-stage{min-height:400px}}
@media(max-width:620px){.hero h1{font-size:38px}.hero-trust{grid-template-columns:1fr 1fr}.solution-grid{grid-template-columns:1fr}.solution-card img{height:210px}.photo-wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}.photo-wall a{grid-column:span 1!important;grid-row:span 1!important}.photo-wall a:first-child{grid-column:span 2!important}.hero-poster-copy{align-items:flex-start;flex-direction:column}.cta-banner{padding:30px 24px}.vr-stage{min-height:300px}}