/* mamontov.com.ua — white background, black text, mobile-first */
:root{
  --bg:#ffffff; --text:#111111; --muted:#5a5a5a; --line:#e6e6e6; --soft:#f6f6f6;
  --max:1100px; --gutter:20px; --radius:10px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.6 var(--font);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
h1,h2,h3{line-height:1.2;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(30px,6vw,52px);font-weight:700;letter-spacing:-.02em}
h2{font-size:clamp(22px,3.4vw,30px);font-weight:700}
h3{font-size:18px;font-weight:650}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:760px}
.muted{color:var(--muted)}
.small{font-size:14px}
.lead{font-size:clamp(18px,2.4vw,21px);line-height:1.55;max-width:720px}
.skip{position:absolute;left:-9999px;top:0;background:#000;color:#fff;padding:8px 12px;z-index:10}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid #000;outline-offset:3px}

/* header */
.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.2) blur(6px);z-index:5}
.header-row{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700}
.brand-mark{display:inline-grid;place-items:center;width:36px;height:36px;background:#000;color:#fff;font-size:14px;letter-spacing:.04em;border-radius:6px}
.brand-logo{height:46px;width:auto}
@media (min-width:900px){.brand-logo{height:56px}}
.menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;padding:10px 0;font-weight:600}
.menu summary::-webkit-details-marker{display:none}
.burger,.burger::before,.burger::after{display:block;width:20px;height:2px;background:#000;position:relative;transition:transform .2s}
.burger::before,.burger::after{content:"";position:absolute;left:0}
.burger::before{top:-6px}.burger::after{top:6px}
.menu[open] .burger{background:transparent}
.menu[open] .burger::before{transform:translateY(6px) rotate(45deg)}
.menu[open] .burger::after{transform:translateY(-6px) rotate(-45deg)}
.nav{position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--line);padding:8px var(--gutter) 20px}
.nav-list a,.lang-list a,.lang-list span{display:block;padding:12px 0;text-decoration:none;font-size:18px}
.nav-list li+li{border-top:1px solid var(--line)}
.nav a[aria-current="page"]{font-weight:700}
.lang-list{display:flex;gap:18px;margin-top:8px}
.lang-list span{font-weight:700;text-decoration:underline;text-underline-offset:4px}
@media (min-width:900px){
  .menu[open] summary{display:none}
  .nav{position:static;display:flex;align-items:center;gap:28px;padding:0;border:0;background:none}
  .nav-list{display:flex;gap:22px}
  .nav-list li+li{border:0}
  .nav-list a,.lang-list a,.lang-list span{padding:6px 0;font-size:15px}
  .lang-list{margin:0;padding-left:22px;border-left:1px solid var(--line);gap:12px}
  .nav-list a:hover,.lang-list a:hover{text-decoration:underline}
}

/* buttons */
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;background:#000;color:#fff;border:1.5px solid #000;border-radius:999px;text-decoration:none;font-weight:600;font-size:16px;transition:background .15s,color .15s}
.btn:hover{background:#fff;color:#000}
.btn-ghost{background:#fff;color:#000}
.btn-ghost:hover{background:#000;color:#fff}

/* sections */
.hero{padding:48px 0 40px}
.hero-grid{display:grid;gap:28px;align-items:center}
.hero-photo img{width:160px;height:160px;border-radius:50%;object-fit:cover}
@media (min-width:860px){
  .hero{padding:88px 0 72px}
  .hero-grid{grid-template-columns:1fr 300px;gap:56px}
  .hero-photo img{width:300px;height:300px}
}
.page-head{padding:48px 0 16px}
@media (min-width:860px){.page-head{padding:80px 0 24px}}
.section{padding:40px 0}
@media (min-width:860px){.section{padding:56px 0}}
.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0;background:var(--soft)}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:24px 20px}
.stats li{display:flex;flex-direction:column;gap:4px}
.stats li:last-child{grid-column:1/-1}
.stat-num{font-size:clamp(32px,5vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1}
.stat-label{color:var(--muted);font-size:15px;line-height:1.4}
@media (min-width:860px){.stats{grid-template-columns:repeat(5,1fr)}.stats li:last-child{grid-column:auto}}

.cards{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:640px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.cards{grid-template-columns:repeat(3,1fr)}.cards-4{grid-template-columns:repeat(4,1fr)}}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff}
.card>a{display:block;text-decoration:none;height:100%;margin:-22px;padding:22px;border-radius:var(--radius)}
.card:has(>a):hover{border-color:#000}
.card p{margin:0;color:var(--muted)}
.case-card .case-result{color:var(--text);font-size:20px;font-weight:700;line-height:1.3;margin-top:6px}
.eyebrow{display:block;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 6px;font-weight:600}
.more{margin-top:18px;font-weight:600}
.two-col{display:grid;gap:32px}
@media (min-width:860px){.two-col{grid-template-columns:1fr 1fr;gap:56px}}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tags li{border:1px solid var(--text);border-radius:999px;padding:6px 14px;font-size:15px}

.final{border-top:1px solid var(--line);padding:40px 0;margin-top:16px}
.final-row{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.final-text{font-size:clamp(20px,3vw,26px);font-weight:700;line-height:1.3;margin:0;max-width:720px}
@media (min-width:860px){.final-row{flex-direction:row;align-items:center;justify-content:space-between}}

/* services */
.svc-list{display:grid;gap:0}
.svc{display:grid;grid-template-columns:44px 1fr;gap:8px 16px;padding:28px 0;border-top:1px solid var(--line);scroll-margin-top:84px}
.svc:last-child{border-bottom:1px solid var(--line)}
.svc-num{font-weight:800;color:var(--muted);font-size:15px;padding-top:6px}
.svc-lead{font-size:18px}
.ticks li{position:relative;padding-left:22px;margin:6px 0}
.ticks li::before{content:"";position:absolute;left:2px;top:.72em;width:9px;height:2px;background:#000}
@media (min-width:860px){.svc{grid-template-columns:80px 1fr}}

/* pricing */
.price-list{border-top:1px solid var(--line)}
.price-row{display:grid;gap:6px;padding:24px 0;border-bottom:1px solid var(--line)}
.price-row h2{font-size:20px;margin-bottom:6px}
.price-row p{margin:0;color:var(--muted)}
.price-row .price{color:var(--text);font-size:20px;font-weight:800;white-space:normal}
@media (min-width:760px){.price-row{grid-template-columns:1fr 260px;gap:32px;align-items:baseline}.price-row .price{text-align:right}}

/* cases */
.case-list{display:grid;gap:14px}
@media (min-width:760px){.case-list{grid-template-columns:repeat(2,1fr)}}
.case{border:1px solid var(--line);border-radius:var(--radius);padding:24px;scroll-margin-top:84px}
.case h2{font-size:22px}
.case p{margin-bottom:.6em}
.case-res{font-weight:700;margin:12px 0 0!important;padding-top:12px;border-top:1px solid var(--line)}
.case-res span{color:var(--muted);font-weight:600}
.case:target{border-color:#000}

/* about */
.about-head{display:grid;gap:28px}
.about-photo img{width:180px;height:180px;border-radius:50%;object-fit:cover}
@media (min-width:860px){.about-head{grid-template-columns:240px 1fr;gap:56px;align-items:start}.about-photo img{width:240px;height:240px}}
.timeline li{display:grid;gap:2px;padding:14px 0;border-top:1px solid var(--line)}
.timeline li:last-child{border-bottom:1px solid var(--line)}
.tl-year{font-weight:700;font-variant-numeric:tabular-nums}
.tl-role{color:var(--text)}
@media (min-width:760px){.timeline li{grid-template-columns:180px 1fr;gap:24px}}
.skills{display:grid;gap:14px}
@media (min-width:860px){.skills{grid-template-columns:repeat(3,1fr)}}
.skills li{border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.skills p{margin:0;color:var(--muted)}

/* contact */
.contact-list{margin:28px 0 0;border-top:1px solid var(--line)}
.contact-list>div{display:grid;gap:2px;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-list dt{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600}
.contact-list dd{margin:0;font-size:18px;overflow-wrap:anywhere}
@media (min-width:760px){.contact-list>div{grid-template-columns:200px 1fr;gap:24px;align-items:baseline}}
.status{margin-top:24px;font-weight:600}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:36px 0 24px;margin-top:24px}
.footer-grid{display:grid;gap:20px}
.footer-name{font-weight:700;margin-bottom:4px}
.footer-links p{margin:0 0 4px}
.footer-nav{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:15px}
@media (min-width:860px){.footer-grid{grid-template-columns:1.4fr 1fr 1.6fr;align-items:start}.footer-nav{justify-content:flex-end}}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.site-header,.site-footer,.final,.actions{display:none}}

/* cookie consent */
.consent{position:fixed;left:0;right:0;bottom:0;z-index:20;background:#fff;border-top:1px solid #111;box-shadow:0 -6px 24px rgba(0,0,0,.08);padding:16px 0 calc(16px + env(safe-area-inset-bottom,0px))}
.consent-row{display:flex;flex-direction:column;gap:14px}
.consent p{margin:0;font-size:15px;line-height:1.5;max-width:760px}
.consent-actions{display:flex;gap:10px;flex-wrap:wrap}
.consent .btn{min-height:42px;padding:0 18px;font-size:15px}
@media (min-width:860px){.consent-row{flex-direction:row;align-items:center;justify-content:space-between;gap:32px}.consent-actions{flex-shrink:0}}