/* Бішофіт — modern lightweight theme. No frameworks, system fonts. */
:root{
  --ink:#10262c;
  --muted:#4c6570;
  --teal:#0e7d8a;
  --teal-d:#0a5c66;
  --deep:#0b2b33;
  --sand:#e8b34b;
  --bg:#ffffff;
  --tint:#eef6f7;
  --line:#dce9ec;
  --radius:18px;
  --shadow:0 12px 32px rgba(11,43,51,.12);
  --max:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em}
h2{font-size:clamp(26px,4vw,38px);margin:.3em 0 .7em}
.kicker{color:var(--teal);font-weight:700;text-transform:uppercase;font-size:13px;letter-spacing:.14em;margin-bottom:6px}
.lead{font-size:clamp(17px,2.2vw,21px);color:var(--muted);max-width:62ch}
.note{color:var(--muted);font-size:15px;margin-top:18px;max-width:80ch}

/* header */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.header.scrolled{box-shadow:0 6px 24px rgba(11,43,51,.12)}
.header-in{display:flex;align-items:center;gap:26px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:20px;letter-spacing:.04em}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--teal),var(--deep));color:#fff;font-size:15px;font-weight:800}
.brand-text small{display:block;font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.08em}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav a{text-decoration:none;color:var(--ink);font-weight:600;font-size:15.5px;opacity:.85;padding:9px 15px;border-radius:999px;transition:background .25s,color .25s}
.nav a:hover{color:var(--teal);opacity:1}
.nav a.btn{color:#fff;opacity:1}
.nav a.active{background:var(--teal);color:#fff;opacity:1}
.nav a.active:hover{background:var(--teal-d);color:#fff}
main section[id]:focus{outline:none}
.phone{font-weight:800;color:var(--teal-d);text-decoration:none;white-space:nowrap}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.burger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}

/* buttons */
.btn{display:inline-block;background:var(--teal);color:#fff;text-decoration:none;font-weight:700;padding:13px 28px;border-radius:999px;border:0;cursor:pointer;font-size:16px;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{background:var(--teal-d);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.14);box-shadow:inset 0 0 0 2px #fff}
.btn-small{padding:9px 20px;font-size:14.5px}

/* hero */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--deep)}
.hero-bg{position:absolute;inset:0;background:url("../img/hero.jpg") center/cover;animation:heroZoom 18s ease-in-out infinite alternate;opacity:.9}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,28,34,.62),rgba(7,28,34,.45) 45%,rgba(7,28,34,.78))}
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.08)}}
.hero-in{position:relative;z-index:1;padding:110px 22px 70px}
.hero h1{font-size:clamp(32px,5.6vw,60px);margin:.25em 0 .4em}
.hero .kicker{color:var(--sand)}
.hero .lead{color:rgba(255,255,255,.85)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0 40px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:820px}
.stats div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px 16px;backdrop-filter:blur(6px)}
.stats dt{font-size:clamp(20px,3vw,30px);font-weight:800}
.stats dd{font-size:13.5px;opacity:.85}
.scrolldown{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);z-index:1;color:#fff;text-decoration:none;font-size:22px;animation:bob 2s ease-in-out infinite;opacity:.8}
@keyframes bob{50%{transform:translate(-50%,8px)}}

/* sections */
.section{padding:86px 0}
.section-tint{background:var(--tint)}
.section-dark{background:var(--deep);color:#fff}
.section-dark .kicker{color:var(--sand)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.check{list-style:none;margin-top:16px;display:grid;gap:10px}
.check li{padding-left:32px;position:relative;font-weight:600}
.check li::before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;font-size:13px}
.steps{margin:16px 0 0 20px;display:grid;gap:8px}
.photo-card{margin:0;position:relative}
.photo-card img{box-shadow:var(--shadow);transition:transform .4s}
.photo-card:hover img{transform:scale(1.015)}
.photo-card figcaption{margin-top:10px;color:var(--muted);font-size:14.5px}
.section-dark .photo-card figcaption{color:rgba(255,255,255,.7)}

/* cards */
.cards-4,.cards-3{display:grid;gap:20px;margin-top:30px}
.cards-4{grid-template-columns:repeat(4,1fr)}
.cards-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:0 2px 10px rgba(11,43,51,.06);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card svg{width:40px;height:40px;color:var(--teal);margin-bottom:12px}
.card h3{font-size:20px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15.5px}
.product{display:flex;flex-direction:column}
.product .tag{align-self:flex-start;background:var(--sand);color:var(--deep);font-size:12.5px;font-weight:800;padding:3px 12px;border-radius:999px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.06em}
.product .spec{color:var(--teal-d);font-weight:700}
.product .price{font-size:30px;font-weight:800;color:var(--ink);margin:14px 0}
.product .price small{font-size:15px;color:var(--muted)}
.product .btn{margin-top:auto;align-self:flex-start}

/* uses */
.uses{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.use{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);overflow:hidden;transition:transform .25s,border-color .25s}
.use:hover{transform:translateY(-6px);border-color:var(--sand)}
.use img{border-radius:0;aspect-ratio:16/9;object-fit:cover;width:100%}
.use div{padding:20px 22px 24px}
.use h3{font-size:19px;margin-bottom:6px}
.use p{font-size:15px;color:rgba(255,255,255,.78)}

/* price table */
.table-scroll{overflow-x:auto;margin-top:26px;border-radius:var(--radius);box-shadow:var(--shadow)}
.price-table{width:100%;border-collapse:collapse;background:#fff;min-width:640px}
.price-table th,.price-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:15.5px}
.price-table thead th{background:var(--deep);color:#fff;font-size:14.5px;text-transform:uppercase;letter-spacing:.05em}
.price-table tbody tr:hover{background:#f4fafb}
.price-table td strong{color:var(--teal-d)}

/* contacts */
.contact-list{list-style:none;display:grid;gap:18px;margin-top:8px}
.contact-list li{display:grid;gap:4px}
.contact-list strong{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--teal)}
.contact-list a{color:var(--ink);font-weight:700;font-size:20px;text-decoration:none}
.contact-list a:hover{color:var(--teal)}
.contact-list small{font-weight:600;color:var(--muted);font-size:14px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;box-shadow:var(--shadow);display:grid;gap:16px}
.form label{display:grid;gap:6px;font-weight:600;font-size:15px}
.form input,.form textarea{font:inherit;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;background:#fbfdfe}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,125,138,.15)}
.form-note{min-height:1.4em;font-size:14.5px;color:var(--teal-d);font-weight:600}

/* footer / totop */
.footer{background:var(--deep);color:rgba(255,255,255,.75);padding:30px 0;font-size:15px}
.footer-in{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.footer a{color:#fff;text-decoration:none}
.footer a:hover{text-decoration:underline}
.totop{position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;border:0;background:var(--teal);color:#fff;font-size:22px;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;box-shadow:var(--shadow)}
.totop.show{opacity:1;pointer-events:auto}

/* reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* responsive */
@media (max-width:960px){
  .cards-4{grid-template-columns:1fr 1fr}
  .cards-3,.uses{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr;gap:30px}
  .stats{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .burger{margin-left:auto}
  .nav{position:fixed;inset:72px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;padding:10px 22px 20px;gap:0;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .35s;box-shadow:0 20px 30px rgba(11,43,51,.12)}
  .nav.open{transform:none}
  .nav a{padding:13px 4px;border-bottom:1px solid var(--line)}
  .burger{display:flex}
  .phone{display:none}
  .cards-4,.cards-3,.uses{grid-template-columns:1fr}
  .section{padding:64px 0}
  .hero-in{padding:80px 22px 60px}
}