:root,:root[data-theme=dark]{--bg:#0f1216;--panel:#171c23;--fg:#e8eaed;--muted:#9aa3ad;--line:#2c343e;--accent:#4dabf7;color-scheme:dark}
:root[data-theme=light]{--bg:#f4f5f7;--panel:#fff;--fg:#1f2328;--muted:#5a6270;--line:#dde1e6;--accent:#1971c2;color-scheme:light}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.top,main,footer{max-width:1180px;margin:0 auto;padding:16px}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px 16px;flex-wrap:wrap}
.top nav{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px}
.brand{white-space:nowrap;font-weight:700;font-size:1.3rem;color:var(--fg);letter-spacing:-.02em;display:inline-flex;align-items:baseline;gap:10px}
.brand .by{font-size:.7em;font-weight:600;color:var(--muted)}.brand .mark{display:inline-block;background:var(--accent);color:#fff;border-radius:6px;padding:0 5px;margin-right:1px}.brand sup{font-size:.55em;font-weight:400;color:var(--muted)}
nav a{color:var(--fg);white-space:nowrap}
.hero{padding:48px 0}h1{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.2}
.lead{color:var(--muted);font-size:1.15rem;max-width:44em}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
nav a.cur{font-weight:600;text-decoration:underline}
.tool{padding:24px 0}.tool h1{margin-top:0}
.pair{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:start;margin:20px 0}
.pair button{margin-top:calc(1.05rem * 1.55 + 8px)}
@media (max-width:640px){.pair button{margin-top:0}}
@media (max-width:640px){.pair{grid-template-columns:1fr}}
.pair label{display:flex;flex-direction:column;gap:8px;font-size:1.05rem;font-weight:600;color:var(--fg)}
.pair input,.delivery-form select,.delivery-form input[type=date],.tariff-form input,.tariff-form select{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--fg)}.pair input:focus,.delivery-form select:focus,.delivery-form input[type=date]:focus,.tariff-form input:focus,.tariff-form select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}.pair input::placeholder{color:var(--muted);opacity:.8}
.err{color:#c92a2a;font-size:.85rem}.warn{color:#c92a2a}
.cands ul{list-style:none;padding:0;margin:8px 0 20px}.cands li{padding:6px 0;border-bottom:1px solid var(--line)}
.result{border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin-top:24px;background:var(--panel)}.result h2{margin-top:0;font-size:1.3rem}
.result h2 small,.cands small{color:var(--muted);font-weight:400;font-size:.8em}
.km{font-size:2rem;margin:8px 0 16px}
.steps{border-collapse:collapse;width:100%}.steps td{padding:6px 12px 6px 0;border-top:1px solid var(--line)}.steps td.num{text-align:right;white-space:nowrap}
.muted{color:var(--muted)}.small{font-size:.85rem}
.pair.one{grid-template-columns:1fr auto}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:8px 0 32px}
.groups{display:grid;grid-template-columns:2fr 1fr;gap:24px;margin:8px 0 32px;align-items:start}
.group .cards{margin:0}.tools .cards{grid-template-columns:1fr 1fr}.knowledge .cards{grid-template-columns:1fr}
.section-groups .group{margin:8px 0 28px}
.group-title{margin:0 0 12px;font-size:.95rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.knowledge{background:color-mix(in srgb,var(--fg) 5%,transparent);border-radius:12px;padding:16px}.knowledge .card{background:var(--panel)}
@media (max-width:900px){.groups{grid-template-columns:1fr}.tools .cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}}
.top nav .sep{width:1px;height:18px;background:var(--line);margin:0 2px}
@media (max-width:900px){.top nav .sep{display:none}}
.card{display:block;border:1px solid var(--line);border-radius:12px;padding:18px 20px;color:var(--fg);background:var(--panel)}.card:hover{text-decoration:none;border-color:var(--accent)}
.card h2{margin:0 0 8px;font-size:1.15rem;color:var(--accent)}.card p{margin:0;color:var(--muted)}
.props{display:grid;grid-template-columns:max-content 1fr;gap:6px 18px;margin:16px 0}.props dt{color:var(--muted)}.props dd{margin:0}
.station h1 small{color:var(--muted);font-size:.6em;font-weight:400}
.btn{display:inline-block;box-sizing:border-box;font:inherit;font-weight:600;line-height:1.3;padding:10px 16px;border:1px solid var(--accent);border-radius:8px;background:none;color:var(--accent);cursor:pointer;text-align:center}.btn:hover{background:var(--accent);color:#fff;text-decoration:none}.btn:disabled,.btn:disabled:hover{background:none;color:var(--accent);opacity:.6;cursor:wait}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.steps th{text-align:left;padding:6px 12px 6px 0;color:var(--muted);font-weight:500}.steps tr.cur td{font-weight:700;background:color-mix(in srgb,var(--accent) 10%,transparent)}
.list{list-style:none;padding:0}.list li{padding:8px 0;border-bottom:1px solid var(--line)}
.km.ok{color:#2b8a3e}.km.bad{color:#c92a2a}
.crumbs{font-size:.85rem;color:var(--muted);margin:0 0 12px}.crumbs a{color:var(--muted)}.crumbs span{margin:0 2px}.crumbs .here{color:var(--fg)}
table,.km,.num,.props dd{font-variant-numeric:tabular-nums}
.cols{columns:3 200px;list-style:none;padding:0;margin:8px 0 24px}.cols li{padding:3px 0;break-inside:avoid}
.doc{max-width:46em}.doc h2{margin-top:32px}
@media print{.top nav,.crumbs,form,.btn,script,footer p:first-child{display:none!important}body{font-size:12px}.result,.card{border:0;padding:0}a{color:inherit;text-decoration:none}.top{padding:0 0 8px}main{padding-top:0}}
.theme{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;vertical-align:middle;color:var(--muted);background:none;border:1px solid var(--line);border-radius:8px;cursor:pointer}
.theme:hover{color:var(--fg);border-color:var(--accent)}.theme svg{width:18px;height:18px;display:none}
:root:not([data-theme=light]) .theme .sun,:root[data-theme=light] .theme .moon{display:block}
@media print{.theme{display:none}}
.hint{margin:4px 0 24px;max-width:60em}
.map{height:480px;border:1px solid var(--line);border-radius:12px;margin:12px 0;background:#e9ecef;color:#495057;display:flex;align-items:center;justify-content:center}
.map[hidden]{display:none}
@media (max-width:640px){.map{height:360px}}
@media print{.map,#show-map{display:none!important}}
.map.full{position:fixed;inset:0;z-index:2000;height:auto;margin:0;border:0;border-radius:0}.map:fullscreen{border:0;border-radius:0;background:#e9ecef}
.leaflet-control-full a{display:flex;align-items:center;justify-content:center}.leaflet-control-full svg{width:16px;height:16px;fill:none;stroke:#333;stroke-width:2;stroke-linecap:round}
.steps.gng th:first-child,.steps.gng td:first-child{white-space:nowrap}.steps tr.pos td{font-weight:600}.code b{font-variant-numeric:tabular-nums;margin-right:2px}
.doc h3{margin-top:24px;font-size:1.1rem}.doc ol,.doc ul{padding-left:1.4em}.doc li{margin:4px 0}
.doc .note{border-left:3px solid var(--accent);padding:8px 16px;margin:20px 0}
.doc .example{border:1px solid var(--line);border-radius:12px;padding:14px 20px;margin:20px 0;background:var(--panel)}
.doc table{border-collapse:collapse;margin:16px 0;width:100%}.doc th,.doc td{border-bottom:1px solid var(--line);padding:6px 10px;text-align:left;vertical-align:top}.doc th{color:var(--muted);font-weight:600}
.doc .ref{color:var(--muted);font-size:.9em;white-space:nowrap}
.doc .refs{color:var(--muted);font-size:.9em}
@media (max-width:600px){.doc table{display:block;overflow-x:auto}.doc .ref{white-space:normal}}
.sources,.related{margin-top:32px;border-top:1px solid var(--line);padding-top:8px}.sources h2,.related h2{font-size:1.1rem}

/* Спросить: ответ со сносками и раскрывающимися источниками */
.answer-text p{margin:.5em 0}.answer-text ul{margin:.4em 0 .8em;padding-left:1.4em}
.answer-text a.fn{text-decoration:none;font-size:.8em;vertical-align:super;margin-left:1px;color:var(--accent)}
.answer h3{font-size:1.05rem;margin:1.2em 0 .4em}
.sources{padding-left:1.4em;margin:0}.sources li{margin:.35em 0}.sources summary{cursor:pointer}
.sources .src-text{white-space:pre-line;color:var(--muted);font-size:.92rem;margin:.4em 0 .8em;border-left:2px solid var(--line);padding-left:12px}
.sources .tag{font-size:.8em;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:0 6px}
.delivery{border-top:1px solid var(--line);margin-top:20px;padding-top:12px}.delivery .km{margin:6px 0}.delivery .transit{font-size:.95em}.delivery h3{margin:0 0 8px}
.delivery-form{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;align-items:start;margin:12px 0}
.delivery-form label{display:block}.delivery-form select,.delivery-form input[type=date]{display:block;width:100%;box-sizing:border-box;margin-top:4px}
.delivery-form .flags{grid-column:1/-1;border:1px solid var(--line);border-radius:8px;padding:8px 12px;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(20em,100%),1fr));gap:4px 16px}
.delivery-form .flags legend{color:var(--muted);font-size:.9rem;padding:0 4px}.delivery-form .flags label{display:flex;gap:8px;align-items:baseline}
.delivery-form button{justify-self:start}.delivery-form select,.delivery-form input[type=date],.tariff-form input,.tariff-form select{height:calc(1.55em + 22px)}.result input:not([type=checkbox]):not([type=radio]),.result select{background:var(--bg)}.steps td.ref{white-space:nowrap}
@media(max-width:700px){.delivery-form{grid-template-columns:minmax(0,1fr)}.steps td.ref{white-space:normal}}
.askform{margin-top:16px}.askrow{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;margin-bottom:10px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}.seg label{cursor:pointer}.seg input{position:absolute;opacity:0;width:0;height:0}
.seg span{display:inline-block;padding:7px 14px;color:var(--muted)}.seg input:checked+span{background:var(--accent);color:#fff}.seg input:focus-visible+span{outline:2px solid var(--accent)}
.rolesel{display:inline-flex;align-items:center;gap:8px;color:var(--muted)}.rolesel select{font:inherit;padding:7px 10px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--fg)}
.askq{display:flex;align-items:center;gap:6px;margin-bottom:12px;padding:0 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel);cursor:text}
.askq:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
.askpre{flex:none;white-space:nowrap;font-weight:600;user-select:none}.askq input{flex:1;min-width:0;font:inherit;padding:10px 0;border:0;background:none;color:var(--fg);outline:none}
.askwait{margin:16px 0;padding:14px 16px;border:1px solid var(--line);border-radius:8px;background:var(--panel)}.askwait p{margin:10px 0 0}
.askbar{position:relative;height:4px;border-radius:2px;overflow:hidden;background:color-mix(in srgb,var(--accent) 18%,transparent)}
.askbar span{position:absolute;top:0;bottom:0;left:-35%;width:35%;border-radius:2px;background:var(--accent);animation:askbar 1.6s ease-in-out infinite}
@keyframes askbar{to{left:100%}}@media(prefers-reduced-motion:reduce){.askbar span{animation:none;left:0;width:100%;opacity:.5}}
.answer-text ol{margin:.4em 0 .8em;padding-left:1.6em}.answer-text ol li{margin:.3em 0}.answer-text .docs{border-top:1px solid var(--line);padding-top:.6em;margin-top:.8em}
.tariff-form{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;align-items:start;margin:20px 0}
.tariff-form label{display:block}.tariff-form label.wide{grid-column:1/-1}.tariff-form input,.tariff-form select{display:block;width:100%;box-sizing:border-box;margin-top:4px}
.tariff-form button{align-self:end}.delivery-sum{margin:0 0 16px}.delivery-sum .sub{font-size:1.15rem;margin:0 0 4px}.delivery-sum .small{margin:0}
@media(max-width:900px){.tariff-form{grid-template-columns:1fr 1fr}}@media(max-width:560px){.tariff-form{grid-template-columns:1fr}}