:root{--navy:#0f2a44;--navy-2:#163a5c;--accent:#f0812b;--accent-2:#d96d1b;--ink:#1b2430;--muted:#5d6b7a;--line:#e3e8ee;--bg:#f6f8fa;--card:#fff;--ok:#1d8f5a;--bad:#b42318;--warn:#b7791f;--radius:12px;--shadow:0 6px 24px rgba(15,42,68,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Be Vietnam Pro",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:#fff;line-height:1.55;font-size:16px}
a{color:var(--navy-2);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;color:var(--navy)}
h1{font-size:2rem;font-weight:800}h2{font-size:1.5rem;font-weight:700}h3{font-size:1.15rem}h4{font-size:.95rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
p{margin:0 0 .8em}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:44px 20px}
.narrow{max-width:800px}.center{text-align:center}
.muted{color:var(--muted)}.small{font-size:.875rem}.lead{font-size:1.1rem;color:#2d3a48}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;font-weight:700;color:var(--accent-2);margin-bottom:.4em}
.btn{display:inline-flex;align-items:center;gap:6px;padding:11px 20px;border-radius:999px;border:1.5px solid var(--navy);color:var(--navy);font-weight:600;background:#fff;cursor:pointer;font-size:.95rem;white-space:nowrap}
.btn:hover{text-decoration:none;background:var(--bg)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn.ghost{background:transparent}.btn.sm{padding:8px 14px;font-size:.85rem}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
/* header */
.topbar{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);font-size:1.2rem}.brand img{height:36px;width:auto}
.brand-mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:9px;background:var(--navy);color:#fff;font-weight:800}
.mainnav{display:flex;align-items:center;gap:22px;font-weight:600}
.mainnav a{color:var(--ink)}.mainnav a:hover{color:var(--accent-2);text-decoration:none}
.navtoggle,.burger{display:none}
/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#1f4f7a 100%);color:#fff;padding:56px 0}
.hero h1{color:#fff;font-size:2.6rem;margin-bottom:.3em}.hero .lead{color:#dbe6f1;max-width:620px}.hero .eyebrow{color:#ffb073}
.hero-in{display:grid;grid-template-columns:1.3fr .8fr;gap:40px;align-items:center}
.hero .btn.ghost{border-color:#fff;color:#fff}.hero .btn.ghost:hover{background:rgba(255,255,255,.1)}
.hero-card{background:#fff;color:var(--ink);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.trust{list-style:none;padding:0;margin:18px 0 0;display:flex;gap:18px;flex-wrap:wrap;font-size:.9rem;color:#dbe6f1}
.trust li::before{content:"✓";color:#7ad3a3;margin-right:6px;font-weight:700}
.trust.compact{color:var(--muted);margin-top:10px;gap:12px}.trust.compact li::before{color:var(--ok)}
/* sections */
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.grid{display:grid;gap:18px}
.grid.cats{grid-template-columns:repeat(4,1fr)}
.cat{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);color:var(--ink);transition:.15s}
.cat:hover,.service:hover,.pcard:hover,.acard:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow);border-color:#cfd8e2}
.cat .icon,.service .icon{font-size:1.6rem}
.grid.products{grid-template-columns:repeat(4,1fr)}
.pcard{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);color:var(--ink);transition:.15s}
.pimg{aspect-ratio:4/3;background:var(--bg);display:grid;place-items:center}.pimg img{width:100%;height:100%;object-fit:contain;padding:10px}
.noimg{font-size:2.6rem;opacity:.5}
.pbody{padding:14px;display:flex;flex-direction:column;gap:4px}.pbody strong{font-size:1rem;line-height:1.3}
.price{color:var(--accent-2);font-weight:700;margin-top:4px}.price.big{font-size:1.5rem}
.band{background:var(--bg);padding:44px 0}
.grid.services{grid-template-columns:repeat(3,1fr)}.grid.services.big{grid-template-columns:repeat(2,1fr)}
.service{display:flex;flex-direction:column;gap:6px;padding:20px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);color:var(--ink);transition:.15s}
.grid.articles{grid-template-columns:repeat(3,1fr)}
.acard{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;color:var(--ink);transition:.15s}
.acard img{aspect-ratio:16/9;object-fit:cover;width:100%}.abody{padding:16px;display:flex;flex-direction:column;gap:6px}
.cta{text-align:center;background:var(--bg);border-radius:var(--radius);margin:20px auto 44px}
/* listing */
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:14px}.crumbs span{color:var(--ink)}
.split{display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:start}.split.wide{grid-template-columns:1fr 320px}
.filters h4{margin:18px 0 8px}
.tree{list-style:none;padding:0;margin:0}.tree li{margin:3px 0}.tree ul{list-style:none;padding-left:16px}.tree a{display:block;padding:5px 8px;border-radius:8px;color:var(--ink)}.tree a.on,.tree a:hover{background:var(--bg);text-decoration:none;color:var(--navy)}
.searchbox{display:flex;gap:6px}.searchbox input{flex:1;min-width:0}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid #cfd8e2;border-radius:9px;font:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid #ffd3b3;border-color:var(--accent)}
input[type=checkbox]{width:auto;margin-right:6px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:18px}
.card.tip{background:#fff7f0;border-color:#ffd9bd}.card.empty{text-align:center;padding:40px}
.pagination{display:flex;gap:16px;justify-content:center;align-items:center;margin-top:24px}
/* product */
.product-top{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-bottom:36px}
.gallery .main{aspect-ratio:4/3;background:var(--bg);border-radius:var(--radius);display:grid;place-items:center;overflow:hidden}.gallery .main img{object-fit:contain;max-height:100%}
.thumbs{display:flex;gap:8px;margin-top:8px}.thumbs img{width:72px;height:72px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.pricebox{display:flex;flex-direction:column;gap:2px;margin:12px 0}
.product-body{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start;margin-bottom:36px}
.specs{width:100%;border-collapse:collapse;margin-bottom:10px}.specs th,.specs td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}.specs th{width:38%;color:var(--muted);font-weight:600;background:var(--bg)}
.checks{list-style:none;padding:0;margin:0}.checks li{padding:4px 0 4px 22px;position:relative}.checks li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
.prose{max-width:760px}.prose h2{margin-top:1.4em}.prose img{border-radius:10px}.prose table{border-collapse:collapse;width:100%}.prose td,.prose th{border:1px solid var(--line);padding:8px}
.cover{border-radius:var(--radius);margin:16px 0}
/* forms */
.form .grid.g2{grid-template-columns:1fr 1fr;gap:12px 16px}
.field{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.field label{font-size:.9rem;font-weight:600}.req{color:var(--bad)}
.field .err{color:var(--bad);font-size:.85rem}.field.has-error input,.field.has-error textarea{border-color:var(--bad)}
.flash{padding:12px 16px;border-radius:10px;margin:14px 0;background:#eef6ff;border:1px solid #cfe3ff}.flash.error{background:#fff1f0;border-color:#ffd0cc;color:var(--bad)}.flash.warning{background:#fff8e6;border-color:#ffe3a3;color:var(--warn)}
/* footer */
.footer{background:var(--navy);color:#dbe6f1;padding:44px 0 20px;margin-top:40px}.footer a{color:#fff}.footer h4{color:#9fb6cc}.footer p{margin:0 0 .4em}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}.footer .brand-name{font-size:1.3rem;font-weight:800;color:#fff}
.social a{margin-right:12px}.copy{border-top:1px solid rgba(255,255,255,.15);margin-top:28px;padding-top:16px;color:#9fb6cc}
/* responsive */
@media (max-width:980px){.grid.cats,.grid.products{grid-template-columns:repeat(2,1fr)}.grid.services,.grid.articles{grid-template-columns:1fr 1fr}.hero-in,.product-top,.product-body,.split,.split.wide{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.hero h1{font-size:2rem}}
@media (max-width:680px){.grid.services,.grid.articles,.grid.services.big,.footer-grid,.form .grid.g2{grid-template-columns:1fr}.section{padding:28px 16px}
  .burger{display:block;width:28px;height:22px;position:relative;cursor:pointer}.burger span,.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:100%;height:3px;background:var(--navy);border-radius:2px;top:9px}.burger span::before{top:-9px}.burger span::after{top:9px}
  .mainnav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 20px;gap:12px}
  .navtoggle:checked ~ .mainnav{display:flex}}