:root{
  --bg:#fff;--bg2:#f6f7fb;--surface:#fff;--ink:#131a2b;--ink2:#3d4761;
  --muted:#5f6b85;--soft:#8b95ad;--line:#e3e7f0;--line2:#eef1f7;
  --accent:#0f6fde;--accent2:#0a58b4;--accent-soft:#eaf2fd;
  --green:#0f9d76;--green-soft:#e8f7f2;--amber:#c2790b;--amber-soft:#fdf4e6;
  --red:#d4453f;--red-soft:#fdeeed;--gray-soft:#f1f3f8;
  --shadow:0 12px 34px rgba(19,26,43,.07);--shadow-sm:0 3px 12px rgba(19,26,43,.05);
  --radius:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------------------------------------------------------------- шапка */
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;gap:28px;height:70px}
.logo{font-size:19px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.logo b{color:var(--accent)}
.nav{display:flex;gap:22px;margin-left:8px}
.nav a{color:var(--muted);font-size:14px;font-weight:600}
.nav a:hover,.nav a.active{color:var(--ink)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.cart-link{position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:9px 14px;border:1px solid var(--line);border-radius:9px;font-size:13px;
  font-weight:650;background:#fff}
.cart-link:hover{border-color:#c9d0e0;background:var(--bg2)}
.cart-badge{min-width:19px;height:19px;padding:0 5px;border-radius:99px;
  background:var(--accent);color:#fff;font-size:11px;font-weight:800;
  display:inline-grid;place-items:center}
.burger{display:none;margin-left:auto;width:40px;height:40px;border:1px solid var(--line);
  border-radius:9px;background:#fff;padding:9px}
.burger span{display:block;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}

/* ---------------------------------------------------------------- кнопки */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:9px;border:1px solid transparent;
  font-size:14px;font-weight:700;cursor:pointer;transition:.16s;font-family:inherit}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(15,111,222,.22)}
.btn-primary:hover{background:var(--accent2)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:#c9d0e0;background:var(--bg2)}
.btn-wa{background:#25d366;color:#fff}
.btn-wa:hover{background:#1eb955}
.btn-sm{min-height:36px;padding:0 13px;font-size:12.5px;border-radius:8px}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:default}

/* ---------------------------------------------------------------- главная */
.hero{background:linear-gradient(180deg,#f8fafd,#f3f6fb 70%,#fff);
  padding:70px 0 64px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:46px;line-height:1.08;letter-spacing:-.035em;margin:0 0 18px}
.hero h1 span{color:var(--accent)}
.hero p{font-size:16px;color:var(--muted);margin:0 0 26px;max-width:520px}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap}
.hero-points{display:flex;gap:22px;margin-top:26px;flex-wrap:wrap}
.hero-points span{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:7px}
.hero-points i{color:var(--green);font-style:normal;font-weight:800}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:24px;box-shadow:var(--shadow)}
.hero-card h3{margin:0 0 4px;font-size:16px}
.hero-card>p{margin:0 0 18px;font-size:13px;color:var(--muted)}
.chat-teaser{display:grid;gap:9px}
.chat-teaser div{padding:11px 13px;border-radius:10px;font-size:13.5px;line-height:1.5}
.chat-teaser .q{background:var(--gray-soft);color:var(--ink2)}
.chat-teaser .a{background:var(--accent-soft);color:#0b4c9c}

/* ---------------------------------------------------------------- секции */
.section{padding:60px 0}
.section-head{margin-bottom:28px}
.section-head h2{font-size:30px;letter-spacing:-.03em;margin:0 0 8px}
.section-head p{color:var(--muted);margin:0;font-size:14.5px}
.kicker{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;display:block;margin-bottom:9px}

/* ---------------------------------------------------------------- каталог */
.catalog-layout{display:grid;grid-template-columns:236px 1fr;gap:32px;
  align-items:start;padding:36px 0 70px}
.filters{position:sticky;top:92px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:18px}
.filters h3{margin:0 0 12px;font-size:12px;text-transform:uppercase;
  letter-spacing:.08em;color:var(--soft)}
.filters a{display:block;padding:8px 11px;border-radius:8px;font-size:13.5px;
  color:var(--ink2);margin-bottom:2px}
.filters a:hover{background:var(--bg2)}
.filters a.active{background:var(--accent-soft);color:#0b4c9c;font-weight:700}
.search-row{display:flex;gap:9px;margin-bottom:22px}
.search-row input{flex:1;min-height:44px;padding:0 14px;border:1px solid var(--line);
  border-radius:9px;font-size:14px;font-family:inherit;background:#fff}
.search-row input:focus{outline:none;border-color:var(--accent)}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:.18s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card-img{aspect-ratio:4/3;background:var(--bg2);display:grid;place-items:center;
  overflow:hidden;border-bottom:1px solid var(--line2)}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-img .ph{color:var(--soft);font-size:12px}
.card-body{padding:15px;display:flex;flex-direction:column;flex:1;gap:7px}
.card-cat{font-size:10.5px;color:var(--soft);text-transform:uppercase;
  letter-spacing:.07em;font-weight:700}
.card h3{margin:0;font-size:15px;line-height:1.35}
.card-text{font-size:12.5px;color:var(--muted);margin:0;flex:1}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:4px;padding-top:12px;border-top:1px solid var(--line2)}
.price{font-size:16px;font-weight:800}
.price.request{font-size:13px;font-weight:650;color:var(--muted)}
.badge{display:inline-block;padding:3px 8px;border-radius:99px;font-size:10.5px;
  font-weight:800}
.badge.in_stock{background:var(--green-soft);color:var(--green)}
.badge.on_order{background:var(--amber-soft);color:var(--amber)}
.badge.out_of_stock{background:var(--gray-soft);color:var(--soft)}

/* ---------------------------------------------------------------- карточка */
.product-top{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;padding:36px 0 20px}
.gallery{background:var(--bg2);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;aspect-ratio:4/3;display:grid;place-items:center}
.gallery img{width:100%;height:100%;object-fit:cover}
.product-info h1{font-size:31px;letter-spacing:-.03em;margin:8px 0 10px;line-height:1.15}
.product-brand{font-size:12px;color:var(--soft);text-transform:uppercase;
  letter-spacing:.08em;font-weight:700}
.product-lead{color:var(--muted);font-size:14.5px;margin:0 0 20px}
.price-box{background:var(--bg2);border:1px solid var(--line);border-radius:12px;
  padding:18px;margin-bottom:18px}
.price-box .price{font-size:27px;display:block;margin-bottom:5px}
.price-note{font-size:12.5px;color:var(--muted)}
.product-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.specs{width:100%;border-collapse:collapse;font-size:13.5px}
.specs td{padding:10px 0;border-bottom:1px solid var(--line2);vertical-align:top}
.specs td:first-child{color:var(--muted);width:46%}
.specs td:last-child{font-weight:650}
.prose{font-size:14.5px;color:var(--ink2);line-height:1.7}
.prose p{margin:0 0 12px}

/* ---------------------------------------------------------------- сравнение */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;
  background:#fff}
.compare-table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:640px}
.compare-table th,.compare-table td{padding:13px 15px;text-align:left;
  border-bottom:1px solid var(--line2);border-right:1px solid var(--line2)}
.compare-table th{background:var(--bg2);font-size:11px;text-transform:uppercase;
  letter-spacing:.06em;color:var(--soft);font-weight:800}
.compare-table td:first-child{color:var(--muted);font-weight:650;background:#fcfdfe}
.compare-table tr:last-child td{border-bottom:0}

/* ---------------------------------------------------------------- подборка */
.cart-layout{display:grid;grid-template-columns:1.4fr .6fr;gap:28px;
  align-items:start;padding:36px 0 70px}
.cart-item{display:grid;grid-template-columns:1fr auto auto;gap:16px;align-items:center;
  padding:15px;border:1px solid var(--line);border-radius:11px;background:#fff;
  margin-bottom:10px}
.cart-item h4{margin:0 0 3px;font-size:14.5px}
.cart-item small{color:var(--soft);font-size:12px}
.lead-form{background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:22px;position:sticky;top:92px;box-shadow:var(--shadow-sm)}
.lead-form h3{margin:0 0 5px;font-size:17px}
.lead-form>p{margin:0 0 17px;font-size:13px;color:var(--muted)}
.field{margin-bottom:13px}
.field label{display:block;font-size:12px;font-weight:700;margin-bottom:5px;
  color:var(--ink2)}
.field input,.field textarea{width:100%;min-height:44px;padding:11px 13px;
  border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit;
  background:#fff;color:var(--ink)}
.field textarea{min-height:78px;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-note{font-size:11.5px;color:var(--soft);margin-top:11px;line-height:1.5}

/* ---------------------------------------------------------------- чат */
.chat-page{max-width:820px;margin:0 auto;padding:30px 24px 60px}
.chat-box{background:#fff;border:1px solid var(--line);border-radius:14px;
  display:flex;flex-direction:column;height:min(70vh,640px);overflow:hidden;
  box-shadow:var(--shadow-sm)}
.chat-head{padding:15px 19px;border-bottom:1px solid var(--line);display:flex;
  align-items:center;gap:11px}
.chat-head .dot{width:9px;height:9px;border-radius:50%;background:var(--green)}
.chat-head strong{font-size:14.5px}
.chat-head small{color:var(--soft);font-size:12px;margin-left:auto}
.chat-log{flex:1;overflow-y:auto;padding:19px;display:flex;flex-direction:column;gap:11px}
.msg{max-width:76%;padding:11px 14px;border-radius:13px;font-size:14px;
  line-height:1.55;white-space:pre-wrap;word-wrap:break-word}
.msg.user{align-self:flex-end;background:var(--accent);color:#fff;
  border-bottom-right-radius:4px}
.msg.assistant{align-self:flex-start;background:var(--bg2);color:var(--ink);
  border-bottom-left-radius:4px}
.msg.error{align-self:center;background:var(--red-soft);color:var(--red);font-size:13px}
.chat-form{display:flex;gap:9px;padding:14px;border-top:1px solid var(--line);
  background:#fcfdfe}
.chat-form textarea{flex:1;min-height:46px;max-height:130px;padding:12px 14px;
  border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;
  resize:none;background:#fff}
.chat-form textarea:focus{outline:none;border-color:var(--accent)}
.typing{align-self:flex-start;display:flex;gap:4px;padding:13px 15px;
  background:var(--bg2);border-radius:13px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--soft);
  animation:blink 1.3s infinite}
.typing i:nth-child(2){animation-delay:.2s}
.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.28}30%{opacity:1}}
.chat-hint{margin-top:15px;display:flex;gap:8px;flex-wrap:wrap}
.chat-hint button{padding:8px 13px;border:1px solid var(--line);border-radius:99px;
  background:#fff;font-size:12.5px;cursor:pointer;color:var(--ink2);font-family:inherit}
.chat-hint button:hover{border-color:var(--accent);color:var(--accent)}

/* ---------------------------------------------------------------- админка */
.admin-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.admin-side{background:#fff;border-right:1px solid var(--line);padding:22px 15px}
.admin-side .logo{margin-bottom:24px;font-size:17px}
.admin-side a{display:block;padding:9px 12px;border-radius:8px;font-size:13.5px;
  color:var(--muted);margin-bottom:2px;font-weight:600}
.admin-side a:hover{background:var(--bg2);color:var(--ink)}
.admin-side a.active{background:var(--accent-soft);color:#0b4c9c;font-weight:700}
.admin-main{background:var(--bg2);padding:26px 30px}
.admin-head{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.admin-head h1{font-size:23px;margin:0;letter-spacing:-.025em}
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.panel-head{padding:15px 18px;border-bottom:1px solid var(--line);display:flex;
  align-items:center;gap:12px}
.panel-head h2{margin:0;font-size:14.5px}
.table{width:100%;border-collapse:collapse;font-size:13px}
.table th{background:#fbfcfe;text-align:left;padding:11px 15px;font-size:10.5px;
  text-transform:uppercase;letter-spacing:.06em;color:var(--soft);font-weight:800;
  border-bottom:1px solid var(--line)}
.table td{padding:12px 15px;border-bottom:1px solid var(--line2);vertical-align:middle}
.table tr:last-child td{border-bottom:0}
.table tr:hover td{background:#fcfdff}
.grade{display:inline-block;padding:4px 9px;border-radius:99px;font-size:11px;
  font-weight:800;white-space:nowrap}
.grade.hot{background:var(--red-soft);color:var(--red)}
.grade.warm{background:var(--amber-soft);color:var(--amber)}
.grade.needs_consult{background:var(--accent-soft);color:var(--accent2)}
.grade.not_target{background:var(--gray-soft);color:var(--soft)}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:22px}
.stat{background:#fff;border:1px solid var(--line);border-radius:11px;padding:16px}
.stat span{display:block;font-size:11px;color:var(--soft);text-transform:uppercase;
  letter-spacing:.06em;font-weight:700;margin-bottom:7px}
.stat strong{font-size:26px;letter-spacing:-.02em}
.filter-tabs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:18px}
.filter-tabs a{padding:7px 13px;border:1px solid var(--line);border-radius:99px;
  background:#fff;font-size:12.5px;color:var(--muted);font-weight:650}
.filter-tabs a.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.dialog-log{display:flex;flex-direction:column;gap:10px;padding:18px}
.dialog-log .msg{max-width:80%}

.auth-page{min-height:100vh;display:grid;place-items:center;background:var(--bg2);
  padding:30px}
.auth-card{width:100%;max-width:380px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:30px;box-shadow:var(--shadow)}
.auth-card h1{font-size:22px;margin:0 0 5px}
.auth-card>p{color:var(--muted);font-size:13.5px;margin:0 0 20px}

.flash{padding:11px 14px;border-radius:9px;font-size:13.5px;margin-bottom:14px}
.flash.error{background:var(--red-soft);color:var(--red)}
.flash.ok{background:var(--green-soft);color:var(--green)}

/* ---------------------------------------------------------------- подвал */
.footer{background:var(--ink);color:#dfe4ef;padding:44px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}
.footer .logo{color:#fff}
.footer p{font-size:13px;color:#98a2ba;max-width:300px;margin:12px 0 0}
.footer strong{display:block;font-size:13px;margin-bottom:11px;color:#fff}
.footer a{display:block;font-size:13px;color:#aab3c8;margin-bottom:7px}
.footer a:hover{color:#fff}
.footer-bottom{margin-top:32px;padding-top:17px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12px;color:#8d97b0;display:flex;justify-content:space-between;gap:20px;
  flex-wrap:wrap}

.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty h3{font-size:18px;color:var(--ink);margin:0 0 7px}

/* плавающая кнопка WhatsApp */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:80;width:56px;height:56px;
  border-radius:50%;background:#25d366;display:grid;place-items:center;
  box-shadow:0 8px 26px rgba(37,211,102,.4);color:#fff}
.wa-float:hover{background:#1eb955}
.wa-float svg{width:29px;height:29px}

@media(max-width:980px){
  .hero-grid,.product-top,.cart-layout{grid-template-columns:1fr;gap:32px}
  .catalog-layout{grid-template-columns:1fr}
  .filters{position:static}
  .grid{grid-template-columns:repeat(2,1fr)}
  .admin-shell{grid-template-columns:1fr}
  .admin-side{border-right:0;border-bottom:1px solid var(--line)}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .lead-form{position:static}
}
@media(max-width:680px){
  .nav{display:none}
  .burger{display:block}
  .hero h1{font-size:33px}
  .grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .section-head h2{font-size:24px}
  .msg{max-width:88%}
}