/* VP Scientific — main stylesheet
   Author: in-house / 2024. Keep sections alphabetical-ish, edit with care. */

:root{
  --navy:#0d2b45;
  --navy-700:#123a5c;
  --teal:#0f8a8d;
  --teal-600:#0c7376;
  --teal-050:#e6f4f4;
  --ink:#1b2733;
  --muted:#5b6b7b;
  --line:#e2e8ee;
  --bg:#ffffff;
  --bg-soft:#f6f9fb;
  --amber:#e2a03f;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(13,43,69,.06),0 2px 8px rgba(13,43,69,.06);
  --shadow-md:0 10px 30px rgba(13,43,69,.10);
  --max:1180px;
  --font-head:"Sora","Segoe UI",Tahoma,sans-serif;
  --font-body:"IBM Plex Sans","Segoe UI",Tahoma,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--teal-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--navy);line-height:1.2;margin:0 0 .6em}
h1{font-size:clamp(2rem,4.4vw,3.25rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,2.8vw,2.25rem);letter-spacing:-.015em}
h3{font-size:1.18rem}
p{margin:0 0 1.05em}
ul{padding-left:1.15rem}
li{margin:.35em 0}
.container{max-width:var(--max);margin:0 auto;padding:0 22px}
.narrow{max-width:820px}
.section{padding:82px 0}
.section--soft{background:var(--bg-soft)}
.section--navy{background:var(--navy);color:#dce7f0}
.section--navy h2,.section--navy h3{color:#fff}
.eyebrow{font:600 .78rem/1.4 var(--font-head);letter-spacing:.16em;text-transform:uppercase;color:var(--teal-600);margin:0 0 .7rem}
.section--navy .eyebrow{color:#7fd4d6}
.lead{font-size:1.12rem;color:var(--muted)}
.section--navy .lead{color:#bcd0e0}
.center{text-align:center}
.mw{max-width:760px}
.center .mw{margin-left:auto;margin-right:auto}

/* ---------- skip link + header ---------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:8px;top:8px}

.topbar{background:var(--navy);color:#c9dbea;font-size:.85rem}
.topbar .container{display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between;padding-top:8px;padding-bottom:8px}
.topbar a{color:#e8f2fa}
.topbar span{display:inline-flex;align-items:center;gap:7px}

.site-header{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .3s ease}
.site-header.is-stuck{box-shadow:var(--shadow-sm)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-head);font-weight:700;color:var(--navy);font-size:1.1rem;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand small{display:block;font:500 .68rem/1 var(--font-body);letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{display:inline-block;padding:9px 12px;border-radius:9px;color:var(--ink);font-weight:500;font-size:.95rem;transition:background .2s,color .2s}
.nav-links a:hover{background:var(--teal-050);color:var(--navy);text-decoration:none}
.nav-links a.active{color:var(--teal-600);font-weight:600}
.nav-cta{margin-left:8px}
.burger{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;width:44px;height:42px;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--navy);margin:4px auto;transition:.25s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(max-width:960px){
  .burger{display:block}
  .nav-links{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 18px 18px;gap:2px;
    max-height:0;overflow:hidden;opacity:0;transition:max-height .35s ease,opacity .25s ease}
  .nav-links.open{max-height:520px;opacity:1}
  .nav-links a{padding:12px 8px}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:11px;font:600 .96rem/1 var(--font-head);
  border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .25s ease,background .2s ease}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--teal);color:#fff;box-shadow:0 6px 18px rgba(15,138,141,.28)}
.btn-primary:hover{background:var(--teal-600)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-700)}
.btn-ghost{border-color:var(--line);color:var(--navy);background:#fff}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal-600)}
.btn-light{background:#fff;color:var(--navy)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#0d2b45 0%,#124055 55%,#0f6f75 100%);color:#e9f3f8;padding:74px 0 90px}
.hero::after{content:"";position:absolute;inset:0;background:
   radial-gradient(680px 340px at 82% 12%,rgba(127,212,214,.28),transparent 60%),
   radial-gradient(520px 320px at 8% 92%,rgba(226,160,63,.16),transparent 60%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero h1{color:#fff}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero p{color:#c8dbe8;font-size:1.1rem;max-width:38em}
.hero-figure{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 26px 60px rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.18)}
.hero-figure img{aspect-ratio:16/10;object-fit:cover}
.hero-badge{position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.94);color:var(--navy);border-radius:12px;padding:12px 16px;font:600 .85rem/1.35 var(--font-head);box-shadow:var(--shadow-md)}
.hero-badge b{display:block;font-size:1.35rem;color:var(--teal-600)}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 0;padding:0;list-style:none}
.pill-row li{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);border-radius:999px;padding:7px 15px;font-size:.85rem;color:#dbeaf3}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:34px}}

/* ---------- generic page header ---------- */
.page-head{background:linear-gradient(150deg,#0d2b45,#14465e);color:#dbe9f2;padding:58px 0 62px}
.page-head h1{color:#fff;margin-bottom:.35em}
.page-head p{color:#b9cfdf;max-width:62ch;margin:0}
.crumbs{font-size:.83rem;color:#8fb0c7;margin-bottom:14px}
.crumbs a{color:#cfe4f1}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:26px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#cfe0e6}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card .ico{width:46px;height:46px;border-radius:12px;background:var(--teal-050);color:var(--teal-600);display:grid;place-items:center;margin-bottom:16px}
.card .ico svg{width:24px;height:24px}

.card-img{padding:0;overflow:hidden}
.card-img img{aspect-ratio:4/3;object-fit:cover;transition:transform .6s ease}
.card-img:hover img{transform:scale(1.05)}
.card-img .body{padding:22px 24px 26px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow-md)}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:30px}}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center}
.stats .n{font:700 2.3rem/1 var(--font-head);color:var(--teal-600)}
.section--navy .stats .n{color:#7fd4d6}
.stats p{margin:.4em 0 0;font-size:.92rem;color:var(--muted)}
.section--navy .stats p{color:#b9cfdf}
@media(max-width:720px){.stats{grid-template-columns:repeat(2,1fr)}}

.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--bg-soft);font-family:var(--font-head);font-size:.85rem;letter-spacing:.04em;text-transform:uppercase;color:var(--navy)}
tr:last-child td{border-bottom:0}

.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:20px}
.steps li{position:relative;padding-left:64px}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  background:var(--teal-050);color:var(--teal-600);font:700 1.05rem/44px var(--font-head);text-align:center}
.steps h3{margin-bottom:.25em}

.quote{background:#fff;border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:12px;padding:26px 28px;box-shadow:var(--shadow-sm)}
.quote p{font-size:1.02rem}
.quote cite{font-style:normal;font-weight:600;color:var(--navy);display:block;margin-top:8px}
.quote cite span{display:block;font-weight:400;font-size:.87rem;color:var(--muted)}

/* ---------- accordion ---------- */
.acc{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.acc details{border-bottom:1px solid var(--line)}
.acc details:last-child{border-bottom:0}
.acc summary{cursor:pointer;list-style:none;padding:18px 54px 18px 22px;font:600 1rem/1.5 var(--font-head);color:var(--navy);position:relative}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";position:absolute;right:22px;top:15px;font-size:1.4rem;color:var(--teal-600);transition:transform .25s}
.acc details[open] summary::after{transform:rotate(45deg)}
.acc .acc-body{padding:0 22px 20px;color:var(--muted)}
.acc .acc-body p:last-child{margin-bottom:0}

/* ---------- forms ---------- */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:16px}
.field label{display:block;font:600 .85rem/1.4 var(--font-head);color:var(--navy);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:.96rem;background:#fdfefe;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,138,141,.15)}
.field textarea{min-height:130px;resize:vertical}
.hint{font-size:.82rem;color:var(--muted)}
.form-note{font-size:.85rem;color:var(--muted);margin-top:12px}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:10px;background:var(--teal-050);color:var(--teal-600);font-size:.92rem}
.form-msg.show{display:block;animation:fade .4s ease}

/* ---------- footer ---------- */
.site-footer{background:#0a2338;color:#a9c2d6;padding:62px 0 0;font-size:.94rem}
.site-footer h4{color:#fff;font-family:var(--font-head);font-size:.92rem;letter-spacing:.1em;text-transform:uppercase;margin:0 0 16px}
.site-footer a{color:#c6dced}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.42em 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}
.foot-brand p{color:#93aec4;max-width:34ch}
.foot-bottom{border-top:1px solid rgba(255,255,255,.10);margin-top:46px;padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#84a0b6}
.foot-bottom a{color:#a9c2d6}

/* ---------- cookie banner ---------- */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:150;background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:0 20px 50px rgba(13,43,69,.22);padding:20px 22px;max-width:var(--max);margin:0 auto;
  display:none;grid-template-columns:1fr auto;gap:20px;align-items:center}
.cookie.show{display:grid;animation:slideUp .45s cubic-bezier(.2,.8,.3,1)}
.cookie p{margin:0;font-size:.9rem;color:var(--muted)}
.cookie strong{display:block;font-family:var(--font-head);color:var(--navy);margin-bottom:4px}
.cookie .actions{display:flex;gap:10px;flex-wrap:wrap}
.cookie .btn{padding:11px 18px;font-size:.88rem}
@media(max-width:780px){.cookie{grid-template-columns:1fr}}

/* ---------- misc ---------- */
.to-top{position:fixed;right:18px;bottom:96px;z-index:120;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--navy);display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}

.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--teal),#7fd4d6);z-index:200;transition:width .1s linear}

.legal h2{margin-top:2em;font-size:1.35rem}
.legal h3{margin-top:1.6em}
.legal .updated{display:inline-block;background:var(--teal-050);color:var(--teal-600);border-radius:999px;padding:6px 14px;font-size:.82rem;font-weight:600;margin-bottom:22px}
.toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;margin-bottom:32px}
.toc h4{margin:0 0 10px;font-family:var(--font-head);color:var(--navy)}
.toc ol{margin:0;padding-left:1.2rem;columns:2;column-gap:30px}
@media(max-width:640px){.toc ol{columns:1}}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.3,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}

.logo-mark{flex:0 0 auto}
.contact-line{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px}
.contact-line svg{flex:0 0 auto;width:20px;height:20px;color:var(--teal-600);margin-top:4px}
.contact-line b{display:block;font-family:var(--font-head);color:var(--navy);font-size:.92rem}
.map-frame{border:0;width:100%;height:340px;border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.badge-strip{display:flex;flex-wrap:wrap;gap:12px;list-style:none;padding:0;margin:0}
.badge-strip li{border:1px dashed var(--line);border-radius:10px;padding:10px 16px;font-size:.85rem;color:var(--muted);background:#fff}