:root{
  --bg:#f4f4f4;--surface:#fff;--ink:#111;--muted:#666;--line:#e0e0e0;
  --accent:#111;--accent-ink:#fff;--accent-soft:#ededed;--ok:#111;--warn:#777;
  --side:#fff;--side-ink:#333;--side-muted:#8a8a8a;--side-hover:#ededed;--danger:#555;
  --radius:10px;--max:1080px;
  color-scheme:light;   /* всегда светлая схема, даже при тёмной теме Windows */
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.55;font-size:16px}
a{color:var(--ink)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
.impbar{background:#111;color:#fff;padding:8px 0;position:sticky;top:0;z-index:50;font-size:14px}
.impbar .wrap{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.impbar .muted{color:#bdbdbd}
.impbar button{background:#fff;color:#111;border-color:#fff;padding:5px 12px}
header.top{background:var(--surface);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;gap:24px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:-.3px}
.logo span{color:var(--muted)}
nav.main{display:flex;gap:18px;flex-wrap:wrap}
nav.main a{color:var(--muted);text-decoration:none;font-weight:500}
nav.main a:hover,nav.main a.on{color:var(--ink)}
main{padding:28px 0 56px}
h1{font-size:30px;line-height:1.2;margin:0 0 12px;letter-spacing:-.4px}
h2{font-size:22px;margin:32px 0 12px}
h3{font-size:17px;margin:0 0 6px}
.lead{font-size:18px;color:var(--muted);max-width:720px}
.muted{color:var(--muted)}
.small{font-size:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.tile{display:block;text-decoration:none;color:inherit}
.tile:hover{border-color:var(--accent)}
.tile .k{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
.hero{padding:28px 0 8px}
form.vin{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 6px}
input[type=text],input[type=search],textarea{font:inherit;padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);width:100%}
form.vin input{flex:1 1 280px;font-family:ui-monospace,Consolas,monospace;letter-spacing:1px;text-transform:uppercase}
button,.btn{font:inherit;font-weight:600;padding:11px 18px;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:var(--accent-ink);cursor:pointer;text-decoration:none;display:inline-block}
.btn.ghost,button.ghost{background:transparent;color:var(--accent)}
.alert{padding:12px 14px;border-radius:8px;background:var(--accent-soft);border:1px solid var(--ink);margin:14px 0}
.alert.info{background:transparent;border-color:var(--line)}
.badge{display:inline-block;white-space:nowrap;font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted)}
.badge.ok{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}.badge.warn{color:var(--warn);border-color:var(--warn)}
table{border-collapse:collapse;width:100%;background:var(--surface)}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:13px;color:var(--muted);font-weight:600}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
.kv td:first-child{color:var(--muted);width:40%}
.mono{font-family:ui-monospace,Consolas,monospace}
.products label{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line)}
.products label:last-child{border-bottom:0}
.products .price{margin-left:auto;font-weight:700;white-space:nowrap}
.article{max-width:760px}
.article img{max-width:100%}
footer{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;gap:24px;flex-wrap:wrap;justify-content:space-between}
@media (max-width:600px){h1{font-size:25px}.lead{font-size:16px}header.top .wrap{gap:10px;padding:10px 16px}}
nav.main.user{margin-left:auto}
nav.main.lang{margin-left:10px;gap:4px;align-items:center}
nav.main.lang a{font-size:12px;font-weight:600;padding:3px 7px;border:1px solid var(--line);border-radius:6px;line-height:1.2}
nav.main.lang a.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
@media (max-width:600px){nav.main.lang{margin-left:0}}
.narrow{max-width:460px}
input[type=password],input[type=email],input[type=number],select{font:inherit;padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);width:100%}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:10px 0}
.chip{padding:5px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--ink);font-size:14px;background:var(--surface)}
.chip.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.list{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.list .row{display:flex;gap:16px;justify-content:space-between;align-items:flex-start;padding:14px 16px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}
.list .row:last-child{border-bottom:0}
.list .row:hover{background:var(--accent-soft)}
.list .meta{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;flex-shrink:0}
@media (max-width:600px){.list .row{flex-direction:column}.list .meta{justify-content:flex-start}}

/* ---------- админка ---------- */
.adm{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.adm aside{background:var(--side);border-right:1px solid var(--line);color:var(--side-ink);padding:18px 14px;position:sticky;top:0;height:100vh;overflow:auto}
.adm aside .logo{color:var(--ink);display:block;margin:0 6px 18px}
.adm aside h4{font-size:11px;letter-spacing:.6px;text-transform:uppercase;color:var(--side-muted);margin:16px 6px 6px}
.adm aside a.item{display:block;padding:7px 10px;border-radius:7px;color:var(--side-ink);text-decoration:none;font-size:14px}
.adm aside a.item:hover{background:var(--side-hover);color:var(--ink)}
.adm aside a.item.on{background:#111;color:#fff}
.adm .admmain{padding:24px 28px 60px;min-width:0}
.adm .admtop{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:18px}
.adm h1{font-size:24px;margin:0}
.stats{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));margin-bottom:20px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.stat .v{font-size:26px;font-weight:700;letter-spacing:-.5px}
.stat .l{font-size:13px;color:var(--muted)}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.toolbar input,.toolbar select{width:auto;min-width:200px;padding:8px 10px}
.toolbar button,.toolbar .btn{padding:8px 14px}
table.edit input,table.edit select{padding:6px 8px;font-size:14px}
table.edit td{padding:6px}
.formgrid{display:grid;gap:12px 16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.formgrid label,.field label{font-size:13px;color:var(--muted);display:block}
.formgrid .wide{grid-column:1/-1}
textarea.code{font-family:ui-monospace,Consolas,monospace;font-size:14px;min-height:420px}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
button.small,.btn.small{padding:6px 10px;font-size:13px}
button.danger{background:transparent;border-color:var(--danger);color:var(--danger)}
.perm{display:inline-flex;gap:4px;align-items:center;font-size:13px;margin-right:10px;white-space:nowrap}
.timeline{list-style:none;padding:0;margin:0}
.timeline li{padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}
.cols{display:grid;gap:16px;grid-template-columns:2fr 1fr}
@media (max-width:900px){.adm{grid-template-columns:1fr}.adm aside{position:static;height:auto}.cols{grid-template-columns:1fr}.adm .admmain{padding:18px 16px}}
.adm{background:linear-gradient(to right,var(--side) 230px,var(--bg) 230px)}
.toolbar input[type=checkbox],.toolbar input[type=file]{min-width:0;width:auto}
@media (max-width:900px){.adm{background:var(--bg)}}

/* ---------- мануалы ---------- */
.pagetext{white-space:pre-wrap;font-size:15px;line-height:1.6;overflow-wrap:anywhere}
.split{display:grid;gap:16px;grid-template-columns:1fr 1fr;align-items:start}
iframe.pdf{width:100%;height:78vh;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.bar{height:6px;background:var(--accent-soft);border-radius:3px;overflow:hidden;margin-bottom:3px}
.bar span{display:block;height:100%;background:var(--accent)}
.catalog .node .list{margin-bottom:6px}
details summary{cursor:pointer;color:var(--muted)}
input[type=file]{font:inherit;color:var(--ink)}
@media (max-width:900px){.split{grid-template-columns:1fr}iframe.pdf{height:60vh}}
@media print{.noprint{display:none}}

/* ---------- EPC ---------- */
.notr{text-decoration:underline dotted var(--muted);text-underline-offset:3px}
tr.off td{color:var(--muted);text-decoration:line-through}
.scheme{position:relative;border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin-bottom:12px;overflow:hidden}
.scheme img{display:block;width:100%;height:auto}
.scheme.loading{background:#fafafa linear-gradient(90deg,#fafafa 0,#f0f0f0 50%,#fafafa 100%) 0 0/200% 100%;animation:schload 1.4s linear infinite}
.scheme.loading img,.scheme.failed img{opacity:0}
.scheme.loading::after{content:"Загрузка схемы…";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:var(--muted);font-size:13px}
.scheme.failed{min-height:160px;cursor:pointer}
.scheme.failed::after{content:"Схема не загрузилась — нажмите, чтобы повторить";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:var(--muted);font-size:13px;text-align:center}
@keyframes schload{to{background-position:-200% 0}}
.scheme .numspot{position:absolute;transform:translate(-50%,-50%);min-width:22px;height:22px;padding:0 4px;border-radius:11px;background:#111;color:#fff;font-size:12px;font-weight:700;line-height:22px;text-align:center;text-decoration:none}
.scheme .numspot:hover{background:#555}
table.parts tr:target td{background:var(--accent-soft)}
.split.epc{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}
@media (max-width:900px){.split.epc{grid-template-columns:1fr}}
table.parts td.mono b{white-space:nowrap}
/* каталог запчастей: плитки марок и карточки моделей */
.brandgrid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));margin:12px 0 8px}
.brandtile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:96px;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:var(--ink);text-align:center}
.brandtile:hover{border-color:var(--accent)}
.brandtile .mark{font-size:20px;font-weight:800;letter-spacing:2px;text-transform:uppercase;line-height:1.1}
.modelgrid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));margin-top:12px}
.modelcard{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;color:inherit}
.modelcard:hover{border-color:var(--accent)}
.modelcard .ph{aspect-ratio:16/10;background:#fff;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}
.modelcard .ph img{width:100%;height:100%;object-fit:contain;pointer-events:none}
.modelcard .ph span{font-size:15px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:#c8c8c8}
.modelcard .nm{padding:10px 12px 2px}
.modelcard>.muted{padding:0 12px 12px}
/* схема с хотспотами: номера позиций поверх картинки */
.scheme{position:relative;max-width:900px}
.scheme img.pageimg{max-width:100%}
.scheme .spot{position:absolute;border-radius:6px;border:2px solid transparent;cursor:pointer}
.scheme .spot:hover,.scheme .spot.on{border-color:#d00;background:rgba(221,0,0,.12)}
table.positions tr.hl td{background:#fff3c4}

/* каталог запчастей: подбор как в каталогах магазинов */
.pick{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin:14px 0 18px}
.pickbox{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pickbox h3{width:100%;margin:0 0 4px}
.pickbox input,.pickbox select{flex:1;min-width:150px}
.azgrid{display:grid;gap:6px 18px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin:12px 0}
.azcol{display:flex;flex-direction:column;gap:4px;padding-left:28px;position:relative;margin-bottom:8px}
.azcol a{text-decoration:none;color:var(--ink)}
.azcol a:hover{text-decoration:underline}
.azletter{font-weight:700;color:var(--muted)}
.azcol .azletter{position:absolute;left:0;top:0}
.azrow{display:grid;grid-template-columns:28px 1fr;gap:8px;margin:10px 0}
.azrow .azletter{font-size:20px;padding-top:12px}
.azrow .modelgrid{margin-top:0}
.yeargrid{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(84px,1fr))}
.yeargrid a{display:block;text-align:center;padding:10px 0;background:var(--surface);border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--ink)}
.yeargrid a:hover{border-color:var(--ink)}
.carhead{display:flex;gap:18px;align-items:flex-start;margin:6px 0 14px;flex-wrap:wrap}
.carhead img{width:220px;max-width:100%;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface)}
.carhead h1{margin:0 0 8px}
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 6px;border-bottom:1px solid var(--line);padding-bottom:8px}
.tab{padding:7px 12px;border-radius:8px;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);font-size:14px}
.tab.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
@media (max-width:600px){.azrow{grid-template-columns:20px 1fr}.carhead img{width:100%}}
.carbody{display:grid;grid-template-columns:260px 1fr;gap:18px;align-items:start;margin-top:10px}
.chapters{display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:10px;position:sticky;top:12px}
.chapters a{display:flex;justify-content:space-between;gap:8px;padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--ink)}
.chapters a:hover{background:var(--accent-soft)}
.chapters a.on{background:var(--accent);color:var(--accent-ink)}
.chapters a.on .muted{color:var(--accent-ink)}
.chapterbody h3:first-child{margin-top:0!important}
@media (max-width:760px){.carbody{grid-template-columns:1fr}.chapters{position:static}}

/* ---------- редактор масок PDF ---------- */
.mask-editor{position:relative;max-width:900px;margin:14px 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.mask-editor img{display:block;width:100%;height:auto;user-select:none;-webkit-user-drag:none}
.mask-editor canvas{position:absolute;left:0;top:0;width:100%;height:100%;cursor:crosshair;touch-action:none}
.mask-editor canvas:active{cursor:crosshair}

/* ---------- AI-диагностика ---------- */
.ai-head{display:flex;gap:16px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;margin-bottom:14px}
.ai-head h1{margin-bottom:6px}
.ai-badges{display:flex;gap:6px;flex-wrap:wrap;padding-top:6px}
.ai-layout{display:grid;gap:16px;grid-template-columns:minmax(0,1fr) 300px;align-items:start}
.ai-chat{padding:0;overflow:hidden}
.ai-log{height:58vh;min-height:420px;overflow:auto;padding:18px 16px;background:#fafafa}
.ai-msg{display:flex;gap:10px;align-items:flex-start;margin-bottom:16px}
.ai-msg.user{flex-direction:row-reverse}
.ai-ava{flex:0 0 34px;width:34px;height:34px;border-radius:50%;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.ai-msg.user .ai-ava{background:#111;color:#fff}
.ai-msg.error .ai-ava{background:#a00;color:#fff}
.ai-bubble{max-width:82%;min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:11px 14px}
.ai-msg.user .ai-bubble{background:#111;color:#fff;border-color:#111}
.ai-msg.user .ai-bubble a{color:#fff;text-decoration:underline}
.ai-msg.error .ai-bubble{background:#fff5f5;border-color:#b00;color:#700}
.ai-text{white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;line-height:1.6}
.ai-bullet{margin-right:2px}
.ai-h{font-weight:700;margin:9px 0 3px;font-size:15px}
.ai-text code{font-family:ui-monospace,Consolas,monospace;font-size:13px;background:var(--accent-soft);padding:1px 5px;border-radius:4px}
.ai-hint{font-size:12px;color:var(--muted);margin-top:8px;border-top:1px solid var(--line);padding-top:6px}
.ai-msg.user .ai-hint{color:#bbb;border-color:#333}
.ai-sources{margin-top:10px;border-top:1px solid var(--line);padding-top:8px;display:flex;flex-direction:column;gap:6px}
.ai-sources-title{font-size:11px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;color:var(--muted)}
.ai-src{display:block;padding:7px 9px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--ink);background:#fff}
.ai-src:hover{border-color:var(--accent)}
.ai-src b{display:block;font-size:13px;line-height:1.35}
.ai-src span{display:block;margin-top:2px;line-height:1.35}
.ai-suggest{display:flex;gap:6px;flex-wrap:wrap;padding:12px 14px 0}
.ai-suggest .chip{cursor:pointer}
.ai-compose{border-top:1px solid var(--line);margin-top:12px}
.ai-context{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px;padding:12px 14px 0}
.ai-context label{font-size:12px;color:var(--muted);display:block}
.ai-context input{width:100%;padding:8px 10px;font-size:14px;margin-top:3px}
.ai-inputrow{display:flex;gap:8px;padding:10px 14px 0;align-items:flex-end}
.ai-inputrow textarea{flex:1;min-height:78px;resize:vertical;font-size:15px}
.ai-inputrow button{white-space:nowrap}
.ai-foot{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:8px 14px 12px}
.ai-side{display:flex;flex-direction:column;gap:12px}
.ai-side .card{padding:16px}
.ai-side ol{padding-left:18px;margin:6px 0}
.ai-side li{margin-bottom:4px}
.ai-thinking .ai-bubble{color:var(--muted)}
.ai-dots{animation:aiPulse 1.2s ease-in-out infinite}
@keyframes aiPulse{0%,100%{opacity:.55}50%{opacity:1}}
@media (max-width:900px){.ai-layout{grid-template-columns:1fr}.ai-log{height:55vh;min-height:360px}.ai-bubble{max-width:88%}}
@media (max-width:600px){.ai-inputrow{flex-direction:column;align-items:stretch}.ai-inputrow button{width:100%}.ai-context{grid-template-columns:1fr 1fr}}