/* CADNEX AI — интерфейс. Светлая и тёмная тема, ПК / планшет / телефон. */
:root{
  --bg:#ffffff; --panel:#ffffff; --surface:#ffffff; --side:#f6f7f9; --hover:#eef0f4; --soft2:#f4f6f9;
  --ink:#111827; --ink2:#4b5563; --muted:#8b93a1; --line:#e6e8ec; --line2:#d6dae1;
  --brand:#2563eb; --brand2:#1d4ed8; --brand-2nd:#06b6d4; --brand-soft:#eaf1fe;
  --me-bg:#f1f3f6; --me-ink:#111827;
  --ok:#0f8a57; --ok-soft:#e5f6ee; --warn:#a15c00; --warn-soft:#fff5e3; --bad:#d23a46;
  --mark:#fff1a8; --radius:16px;
  --shadow:0 1px 2px rgba(17,24,39,.04),0 4px 16px rgba(17,24,39,.06);
  --shadow-lg:0 2px 6px rgba(17,24,39,.05),0 12px 40px rgba(17,24,39,.10);
  --chip-line:#c9d8fb; --chip-hover:#dbe7fd; --focus:rgba(37,99,235,.14);
  --fs:15px; --chat-w:800px; --side-w:272px; --top-h:56px;
  --font:"Inter","Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
}
[data-theme=dark]{
  --bg:#0e1014; --panel:#16191f; --surface:#16191f; --side:#0a0c0f; --hover:#1e222a; --soft2:#1a1e25;
  --ink:#e8eaee; --ink2:#a8afbb; --muted:#737b88; --line:#252a32; --line2:#323843;
  --me-bg:#1f242c; --me-ink:#e8eaee;
  --ok:#43c98a; --ok-soft:#10291d; --warn:#f0b54a; --warn-soft:#2e2412; --bad:#f06370; --mark:#5c4d00;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 16px rgba(0,0,0,.25);
  --shadow-lg:0 2px 6px rgba(0,0,0,.35),0 16px 48px rgba(0,0,0,.45);
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font:var(--fs)/1.55 var(--font);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility}
button,input,select,textarea{font:inherit;color:inherit}
button{-webkit-tap-highlight-color:transparent}
a{color:var(--brand)}
::selection{background:var(--chip-hover)}
*{scrollbar-width:thin;scrollbar-color:var(--line2) transparent}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:var(--line2);border-radius:10px;border:3px solid transparent;background-clip:content-box}
::-webkit-scrollbar-track{background:transparent}

/* ---------- Каркас ---------- */
body.chat-on{height:100vh;height:100dvh;display:flex;flex-direction:column;padding-left:var(--side-w);overflow:hidden}
main{flex:1;min-height:0;width:100%;overflow-y:auto;display:flex;flex-direction:column;padding:0 16px}
.view{display:none}
.view.on{display:block;width:100%;max-width:1180px;margin:16px auto 0}
#v-chat.on{flex:1;min-height:0;margin-top:0;max-width:none}

/* ---------- Шапка ---------- */
.top{background:var(--bg);background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:saturate(1.6) blur(14px);backdrop-filter:saturate(1.6) blur(14px);position:sticky;top:0;z-index:20;flex:none;border-bottom:1px solid transparent}
.admin .top{border-bottom-color:var(--line)}
.top-in{position:relative;max-width:1180px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:0 16px;height:var(--top-h)}
.mk{width:30px;height:30px;flex:none;display:block}
.logo{display:flex;align-items:center;gap:10px;font-weight:650;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.logo small{font-weight:450;color:var(--muted);font-size:12px;display:block;line-height:1.1;letter-spacing:0}
.user .logo .mk{display:none}
.stats{margin-left:auto;display:flex;gap:14px;color:var(--ink2);font-size:13px;flex-wrap:wrap;justify-content:flex-end}
.stats b{color:var(--ink)}
.tabs{max-width:1180px;margin:0 auto;display:flex;gap:2px;padding:0 12px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{border:0;background:none;padding:10px 12px;border-bottom:2px solid transparent;color:var(--ink2);cursor:pointer;white-space:nowrap;font-weight:550}
.tab:hover{color:var(--ink)}
.tab.on{color:var(--brand);border-bottom-color:var(--brand)}
.tab-exit{margin-left:auto;text-decoration:none;color:var(--muted)}
.tab-exit:hover{color:var(--brand)}
.burger,.nc-btn,.bell{border:0;background:none;cursor:pointer;color:var(--ink2);width:38px;height:38px;border-radius:10px;display:grid;place-items:center;flex:none;position:relative}
.burger:hover,.nc-btn:hover,.bell:hover{background:var(--hover);color:var(--ink)}
.burger{display:none;margin-left:-8px}
.nc-btn{display:none;margin-left:auto}
.bell{margin-left:auto}
.admin .bell{margin-left:12px}
.bell .badge{position:absolute;top:4px;right:4px;min-width:16px;height:16px;border-radius:8px;background:var(--bad);color:#fff;font-size:10px;font-weight:700;display:grid;place-items:center;padding:0 4px;box-shadow:0 0 0 2px var(--bg)}

/* ---------- Боковая панель ---------- */
.side{position:fixed;left:0;top:0;bottom:0;width:var(--side-w);background:var(--side);border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:40;padding-top:env(safe-area-inset-top)}
body:not(.chat-on) .side{display:none}
.side-top{padding:12px 12px 6px}
.side-brand{display:flex;align-items:center;gap:10px;padding:4px 6px 14px;font-size:16px;letter-spacing:-.01em}
.side-brand b{font-weight:700}
.newchat{width:100%;display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:9px 12px;cursor:pointer;font-weight:600;color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.04);transition:border-color .15s,box-shadow .15s}
.newchat:hover{border-color:var(--chip-line);box-shadow:0 0 0 3px var(--focus)}
.newchat svg{color:var(--brand)}
.side-list{flex:1;overflow-y:auto;padding:0 8px 12px}
.side-group{font-size:11.5px;color:var(--muted);padding:14px 8px 4px;font-weight:600;letter-spacing:.02em}
.chat-it{display:flex;align-items:center;gap:2px;border-radius:10px;padding:7px 6px 7px 10px;cursor:pointer;color:var(--ink2);font-size:14px;transition:background .12s}
.chat-it:hover{background:var(--hover);color:var(--ink)}
.chat-it.on{background:var(--hover);color:var(--ink);font-weight:550}
.chat-it .t{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-it .ic{border:0;background:none;cursor:pointer;color:var(--muted);padding:4px;border-radius:6px;opacity:0;line-height:0}
.chat-it .ic svg{width:15px;height:15px}
.chat-it:hover .ic,.chat-it.on .ic{opacity:1}
.chat-it .ic:hover{color:var(--ink);background:var(--line)}
.side-empty{color:var(--muted);font-size:13px;padding:10px 8px}
.side-foot{border-top:1px solid var(--line);padding:8px 8px calc(8px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:2px}
.side-link{display:flex;align-items:center;gap:10px;text-align:left;border:0;background:none;padding:8px 10px;border-radius:10px;color:var(--ink2);text-decoration:none;font-size:14px;cursor:pointer}
.side-link svg{width:18px;height:18px;flex:none}
.side-link:hover{background:var(--hover);color:var(--ink)}
.side-mask{display:none}

/* ---------- Панели (настройки) ---------- */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.panel h2{margin:0 0 4px;font-size:18px;letter-spacing:-.01em}
.panel h3{margin:16px 0 8px;font-size:14px;color:var(--ink2)}
.hint{color:var(--ink2);font-size:13px;margin:0 0 12px}

/* ---------- Кнопки и поля ---------- */
.btn{background:var(--brand);color:#fff;border:0;border-radius:10px;padding:9px 16px;cursor:pointer;font-weight:600;display:inline-flex;align-items:center;gap:6px;text-decoration:none;transition:background .15s,transform .05s,box-shadow .15s;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.btn:hover{background:var(--brand2)}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line2);box-shadow:none}
.btn.ghost:hover{background:var(--hover)}
.btn.small{padding:6px 11px;font-size:13px;border-radius:9px}
.btn.danger{background:var(--surface);color:var(--bad);border:1px solid color-mix(in srgb,var(--bad) 35%,transparent);box-shadow:none}
.btn:disabled{opacity:.5;cursor:default}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px 14px}
.chat-wrap .grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
label.f{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--ink2);font-weight:500}
input:not([type]),input[type=text],input[type=date],input[type=number],input[type=password],input[type=search],select,textarea{border:1px solid var(--line2);border-radius:10px;padding:8px 11px;background:var(--surface);width:100%;outline:none;font-size:14.5px;color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:hover,select:hover,textarea:hover{border-color:color-mix(in srgb,var(--line2) 60%,var(--ink2))}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--focus)}
textarea{resize:vertical;min-height:60px;line-height:1.5}
fieldset{border:1px solid var(--line);border-radius:12px;padding:10px 12px 12px;margin:0 0 12px}
legend{font-weight:600;padding:0 6px;color:var(--ink)}

/* ---------- Чат ---------- */
.chat-wrap{max-width:var(--chat-w);margin:0 auto;display:flex;flex-direction:column;height:100%;min-height:0;width:100%}
.msgs{flex:1;overflow-y:auto;padding:12px 2px 18px;display:flex;flex-direction:column;overscroll-behavior:contain}
.msg{display:flex;gap:12px;margin:14px 0;align-items:flex-start}
.msg .bub{max-width:100%;min-width:0;white-space:pre-wrap;word-wrap:break-word;overflow-wrap:anywhere}
.msg.me{justify-content:flex-end}
.msg.me .bub{max-width:min(620px,85%);background:var(--me-bg);color:var(--me-ink);padding:10px 16px;border-radius:20px 20px 6px 20px}
.msg.ai .av{width:28px;height:28px;flex:none;margin-top:1px}
.msg.ai .av svg{width:28px;height:28px;display:block}
.msg.ai .bub{flex:1;padding:3px 0 0;line-height:1.65}
.msg.ai .bub.wide{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow);line-height:1.55}
.composer-zone{flex:none}
.composer{display:flex;gap:6px;align-items:flex-end;background:var(--surface);border:1px solid var(--line2);border-radius:26px;padding:7px 7px 7px 18px;box-shadow:var(--shadow-lg);transition:border-color .15s,box-shadow .15s}
.composer:focus-within{border-color:color-mix(in srgb,var(--brand) 45%,var(--line2))}
.composer textarea{border:0;box-shadow:none!important;min-height:42px;max-height:200px;resize:none;padding:9px 0;background:transparent;font-size:15.5px;line-height:1.5}
.composer textarea::placeholder{color:var(--muted)}
.composer .btn{align-self:flex-end}
.comp-btns{display:flex;gap:2px;align-items:center}
.icon-btn{width:40px;height:40px;border-radius:50%;border:0;display:grid;place-items:center;cursor:pointer;flex:none;transition:background .15s,color .15s,opacity .15s,transform .1s}
.icon-btn.mic{background:transparent;color:var(--ink2)}
.icon-btn.mic:hover{background:var(--hover);color:var(--ink)}
.icon-btn.mic.rec{background:var(--bad);color:#fff;animation:recpulse 1.4s infinite}
@keyframes recpulse{0%{box-shadow:0 0 0 0 rgba(220,38,38,.45)}70%{box-shadow:0 0 0 10px rgba(220,38,38,0)}100%{box-shadow:0 0 0 0 rgba(220,38,38,0)}}
.icon-btn.send{background:var(--ink);color:var(--bg);margin-left:4px}
.icon-btn.send:hover{transform:scale(1.04)}
.icon-btn.send:disabled{opacity:.18;cursor:default;transform:none}
.rec-hint{font-size:12px;color:var(--bad);text-align:center;margin:6px 0 0}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0}
.chip{border:1px solid var(--line2);background:var(--surface);color:var(--ink);border-radius:999px;padding:6px 13px;font-size:13px;cursor:pointer;transition:background .12s,border-color .12s;line-height:1.35;text-align:left}
.chip:hover{background:var(--brand-soft);border-color:var(--chip-line);color:var(--brand-ink,var(--brand2))}
.choose-group{margin:10px 0 4px;font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.foot{color:var(--muted);font-size:11.5px;text-align:center;padding:8px 0 calc(10px + env(safe-area-inset-bottom));flex:none}
.foot a{color:inherit}

/* Вложения: в поле ввода и в сообщении */
.composer{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;column-gap:6px}
.composer textarea{width:100%;min-width:0}
.att-tray{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap;padding:4px 0 4px;margin-left:-10px}
.fcard{position:relative;display:flex;align-items:center;gap:10px;width:240px;max-width:100%;padding:8px 30px 8px 8px;border:1px solid var(--line);border-radius:14px;background:var(--surface);text-align:left;min-width:0}
.mfiles .fcard{padding-right:12px}
.fic{width:36px;height:36px;flex:none;border-radius:9px;display:grid;place-items:center;color:#fff;font-size:10.5px;font-weight:800;letter-spacing:.02em}
.fic.pdf{background:#e5484d}.fic.cad{background:var(--brand)}.fic.oth{background:#8b93a1}.fic.img{background:#12a150}
.fnm{min-width:0;display:flex;flex-direction:column;line-height:1.3}
.fnm b{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ink)}
.fnm small{font-size:12px;color:var(--muted)}
.fcard.busy .fic{animation:cxpulse 1.2s ease-in-out infinite}
.fcard.bad{border-color:color-mix(in srgb,var(--bad) 40%,var(--line))}
@keyframes cxpulse{0%,100%{opacity:1}50%{opacity:.45}}
.fx{position:absolute;top:6px;right:6px;width:22px;height:22px;border-radius:50%;border:0;background:var(--hover);color:var(--ink2);display:grid;place-items:center;cursor:pointer;padding:0}
.fx:hover{background:var(--ink);color:var(--bg)}
.msg.me .bub.withf{background:none;padding:0;display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.msg.me .bub.withf .mtext{background:var(--me-bg);color:var(--me-ink);padding:10px 16px;border-radius:20px 20px 6px 20px;max-width:100%}
.mfiles{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}

/* Стартовый экран */
.hello{margin:auto 0;padding:24px 0 8px;text-align:center;display:flex;flex-direction:column;align-items:center}
.hello-mk{width:52px;height:52px;margin-bottom:18px;filter:drop-shadow(0 8px 24px color-mix(in srgb,var(--brand) 40%,transparent));animation:cxfloat 6s ease-in-out infinite}
.hello-g{font-size:15px;color:var(--muted);margin-bottom:4px;font-weight:500}
.hello-t{display:inline-block;font-size:34px;font-weight:700;letter-spacing:-.025em;line-height:1.15;background:linear-gradient(100deg,var(--ink) 15%,var(--brand) 70%,var(--brand-2nd));-webkit-background-clip:text;background-clip:text;color:transparent}
@keyframes cxfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.starters{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:0 0 14px}
.starter{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:12px 13px;cursor:pointer;transition:border-color .15s,box-shadow .15s,transform .15s;min-width:0}
.starter:hover{border-color:var(--chip-line);box-shadow:var(--shadow);transform:translateY(-1px)}
.starter .si{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);margin-bottom:8px}
.starter .si svg{width:18px;height:18px}
.starter b{font-size:14px;font-weight:600;color:var(--ink)}
.starter span{font-size:12.5px;color:var(--muted);line-height:1.35;overflow:hidden;text-overflow:ellipsis;max-width:100%}

/* ---------- Карточки ответов ---------- */
.card-info{white-space:normal}
.card-info h4{margin:12px 0 4px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.card-info ul{margin:0;padding-left:18px}
.tag{display:inline-block;background:var(--brand-soft);color:var(--brand-ink,var(--brand2));border-radius:7px;padding:2px 8px;font-size:12px;font-weight:650}
.hit{border-top:1px solid var(--line);padding:10px 0;white-space:normal}
.hit:first-of-type{border-top:0}
.hit .src{font-size:12px;color:var(--ink2);margin-bottom:4px}
.hit mark,.hl mark{background:var(--mark);color:inherit;padding:0 1px;border-radius:2px}

/* Черновик акта */
.draft{white-space:normal}
.draft .head{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.draft .head select{width:auto;min-width:140px}
.draft .grid{margin-bottom:10px}
.draft label.f{margin-bottom:10px}
.mats{border:1px solid var(--line);border-radius:10px;max-height:220px;overflow:auto;padding:4px 10px}
.mats label{display:flex;gap:8px;align-items:flex-start;padding:6px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--ink)}
.mats label:last-child{border-bottom:0}
.missing{background:var(--warn-soft);color:var(--warn);border-radius:10px;padding:9px 12px;font-size:13px;margin:8px 0 12px}
.done{background:var(--ok-soft);color:var(--ok);border-radius:10px;padding:10px 12px;margin-top:10px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* Таблицы */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
table.tbl{border-collapse:collapse;width:100%;background:var(--surface);font-size:14px}
.tbl th{background:var(--soft2);text-align:left;font-weight:600;color:var(--ink2);padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap;font-size:13px}
.tbl td{padding:7px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl td input,.tbl td select{padding:6px 8px;min-width:90px}
.tbl tr:last-child td{border-bottom:0}
.empty{color:var(--muted);text-align:center;padding:20px}

/* Обучение */
.rules-layout{display:grid;grid-template-columns:320px 1fr;gap:14px}
.rule-list{max-height:calc(100vh - 260px);overflow:auto}
.rule-item{padding:8px 10px;border-radius:9px;cursor:pointer;display:flex;justify-content:space-between;gap:8px}
.rule-item:hover{background:var(--hover)}
.rule-item.on{background:var(--brand);color:#fff}
.rule-item small{opacity:.7}
.learned{display:flex;flex-wrap:wrap;gap:4px}
.learned span{background:var(--hover);border-radius:6px;padding:2px 7px;font-size:12px;color:var(--ink2)}

.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;z-index:99;box-shadow:var(--shadow-lg);max-width:92vw;font-size:14px;animation:cxin .2s ease-out}
.toast.bad{background:var(--bad);color:#fff}

.login{position:fixed;inset:0;background:var(--bg);display:grid;place-items:center;z-index:50;padding:16px}
.login .panel{width:min(380px,100%);padding:24px}

.letter{white-space:pre-wrap;font:14px/1.6 var(--font);background:var(--soft2);border:1px solid var(--line);border-radius:12px;padding:14px;margin:8px 0}
.doclist{display:flex;flex-direction:column;margin-top:8px;white-space:normal}
.doclist a{padding:8px 2px;border-top:1px solid var(--line);color:var(--brand);text-decoration:none}
.doclist a:hover{text-decoration:underline}

/* обычный режим: только чат */
.user .tabs,.user .stats{display:none!important}

/* ---------- Уведомления ---------- */
.notes{position:absolute;right:12px;top:calc(var(--top-h) - 4px);width:min(380px,calc(100vw - 24px));max-height:70vh;overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);z-index:60;animation:cxin .15s ease-out}
.notes-h{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);font-weight:700}
.notes-h button{border:0;background:none;color:var(--brand);cursor:pointer;font-size:13px}
.note{padding:11px 16px;border-bottom:1px solid var(--line);font-size:14px}
.note:last-child{border-bottom:0}
.note.unread{background:var(--brand-soft)}
.note .tm{color:var(--muted);font-size:12px;margin-top:2px}
.note a{color:var(--brand)}
.notes-empty{padding:18px 16px;color:var(--muted);font-size:14px}
.rem-sec{padding:8px 16px 12px;border-top:1px solid var(--line)}
.rem-sec h5{margin:6px 0;font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.rem{display:flex;gap:8px;align-items:flex-start;font-size:14px;padding:4px 0}
.rem .x{margin-left:auto;border:0;background:none;color:var(--muted);cursor:pointer}

/* ---------- Окно настроек ---------- */
.modal{position:fixed;inset:0;background:rgba(8,12,20,.45);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:grid;place-items:center;z-index:70;padding:16px;animation:cxfade .15s ease-out}
.modal-in{background:var(--surface);border:1px solid var(--line);border-radius:20px;width:min(620px,100%);max-height:90vh;max-height:90dvh;overflow:auto;box-shadow:var(--shadow-lg);animation:cxpop .18s ease-out}
.modal-h{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface);z-index:1}
.modal-h h2{margin:0;font-size:18px;letter-spacing:-.01em}
.modal-h .x{border:0;background:none;font-size:20px;cursor:pointer;color:var(--muted);width:34px;height:34px;border-radius:9px}
.modal-h .x:hover{background:var(--hover);color:var(--ink)}
.set-sec{padding:14px 20px;border-bottom:1px solid var(--line)}
.set-sec:last-child{border-bottom:0}
.set-sec h3{margin:2px 0 8px;font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.set-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;flex-wrap:wrap}
.set-row .lbl{font-size:15px}
.set-row .sub{display:block;color:var(--muted);font-size:12px}
.seg{display:inline-flex;background:var(--hover);border-radius:11px;padding:3px;gap:2px}
.seg button{border:0;background:none;padding:6px 12px;cursor:pointer;color:var(--ink2);font-size:13.5px;border-radius:8px;font-weight:500}
.seg button.on{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.swatches{display:flex;gap:8px;flex-wrap:wrap}
.sw{width:28px;height:28px;border-radius:50%;border:2px solid transparent;cursor:pointer;box-shadow:inset 0 0 0 2px rgba(255,255,255,.5);transition:transform .12s}
.sw:hover{transform:scale(1.08)}
.sw.on{border-color:var(--ink)}
.switch{position:relative;width:44px;height:26px;flex:none}
.switch input{opacity:0;width:0;height:0}
.switch span{position:absolute;inset:0;background:var(--line2);border-radius:13px;cursor:pointer;transition:.15s}
.switch span:before{content:"";position:absolute;width:20px;height:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.15s;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.switch input:checked+span{background:var(--brand)}
.switch input:checked+span:before{transform:translateX(18px)}
.set-link{color:var(--brand);text-decoration:none;font-weight:600}
.set-input{border:1px solid var(--line2);background:var(--surface);color:var(--ink);border-radius:10px;padding:7px 10px;font:inherit;font-size:14px;width:200px;max-width:55%}
.set-input:focus{outline:none;box-shadow:0 0 0 3px var(--focus);border-color:var(--brand)}

/* ---------- Схемы и разбор чертежей ---------- */
.scheme-view{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:8px 0}
.scheme-view svg{display:block;width:100%;height:auto}
.vol{border-collapse:collapse;width:100%;font-size:13px;margin:8px 0;white-space:normal}
.vol th,.vol td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
.vol th{background:var(--soft2);color:var(--ink2);font-weight:600}
.vol td:nth-child(3){white-space:nowrap}
.an-sum{margin:6px 0 4px;padding:0;list-style:none}
.an-sum li{padding:2px 0}
.notes-list{margin:6px 0 0;padding-left:18px;color:var(--ink2);font-size:13px}
.more-btn{border:0;background:none;color:var(--brand);cursor:pointer;padding:4px 0;font-size:13px}
.chat-wrap.drag .composer{border-color:var(--brand);box-shadow:0 0 0 4px var(--focus),var(--shadow-lg)}

/* ---------- Ответы как у нейросети ---------- */
.bub .fmt,.bub .ans{white-space:normal}
.fmt p{margin:0 0 8px}
.fmt p:last-child{margin-bottom:0}
.fmt ul,.fmt ol{margin:2px 0 10px;padding-left:22px}
.fmt li{margin:4px 0}
.fmt li::marker{color:var(--muted)}
.fmt b,.fmt strong{font-weight:650}
.fmt .gap{height:6px}
.fmt i.note{color:var(--ink2);font-style:italic}
.ans .ttl{margin:0 0 6px;font-weight:700;font-size:calc(var(--fs) + 1px);letter-spacing:-.01em}
.ans .lead{font-size:calc(var(--fs) + .5px);line-height:1.65}
.ans .refs{color:var(--muted);font-size:12.5px;margin:10px 0 0}
details.more-d{margin-top:12px;border:1px solid var(--line);border-radius:12px;padding:9px 13px;background:var(--soft2)}
details.more-d summary{cursor:pointer;color:var(--ink2);font-size:13.5px;font-weight:550;list-style:none;user-select:none}
details.more-d summary:hover{color:var(--ink)}
details.more-d summary::-webkit-details-marker{display:none}
details.more-d summary::before{content:'';display:inline-block;width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg);margin:0 10px 2px 2px;transition:transform .15s}
details.more-d[open] summary::before{transform:rotate(45deg)}
details.more-d .fmt{margin-top:10px}
.acts{display:flex;gap:2px;margin:8px 0 -4px -6px}
.acts .ab{border:0;background:none;padding:6px;border-radius:8px;cursor:pointer;color:var(--muted);line-height:0;transition:background .12s,color .12s}
.acts .ab:hover{background:var(--hover);color:var(--ink)}
.acts .ab.on{color:var(--brand)}
.acts .ab svg{width:16px;height:16px}
.dots{display:inline-flex;gap:5px;padding:9px 2px}
.dots i{width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2nd));animation:cxdot 1.1s infinite ease-in-out}
.dots i:nth-child(2){animation-delay:.15s}
.dots i:nth-child(3){animation-delay:.3s}
@keyframes cxdot{0%,80%,100%{opacity:.3;transform:translateY(0) scale(.85)}40%{opacity:1;transform:translateY(-3px) scale(1)}}
.msg{animation:cxin .22s ease-out}
@keyframes cxin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@keyframes cxfade{from{opacity:0}to{opacity:1}}
@keyframes cxpop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}
.msg.ai .bub > .chips{margin-top:12px}

/* ---------- Планшет и телефон ---------- */
@media (max-width:900px){
  .starters{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  :root{--top-h:52px}
  body.chat-on{padding-left:0}
  .top{padding-top:env(safe-area-inset-top)}
  .top-in{padding:0 10px}
  .burger{display:grid}
  .nc-btn{display:grid}
  .bell{margin-left:0}
  .admin .bell{margin-left:auto}
  .admin .nc-btn{display:none}
  .user .logo{position:absolute;left:50%;transform:translateX(-50%)}
  .logo small{display:none}
  .user .logo .mk{display:block;width:26px;height:26px}
  .logo{font-size:15.5px;gap:8px}
  .side{width:min(300px,86vw);transform:translateX(-100%);transition:transform .22s cubic-bezier(.2,.8,.2,1);box-shadow:none}
  body.side-open .side{transform:none;box-shadow:8px 0 40px rgba(0,0,0,.18)}
  body.side-open .side-mask{display:block;position:fixed;inset:0;background:rgba(8,12,20,.38);z-index:35;animation:cxfade .2s}
  .chat-it .ic{opacity:1}
  .chat-it{padding:9px 6px 9px 10px}
  .rules-layout{grid-template-columns:1fr}
  .rule-list{max-height:260px}
  .stats{display:none}
  main{padding:0 10px}
  .panel{padding:14px}
  .msg{gap:10px;margin:12px 0}
  .msg.ai .av,.msg.ai .av svg{width:24px;height:24px}
  .msg.me .bub{max-width:88%}
  .msg.ai .bub.wide{padding:12px;border-radius:14px;margin-right:0}
  .msg.ai:has(> .bub.wide) .av{display:none}
  .composer{border-radius:24px;padding:5px 5px 5px 16px}
  .composer textarea{font-size:16px;min-height:40px}
  .icon-btn{width:38px;height:38px}
  .hello-t{font-size:28px}
  .hello-mk{width:46px;height:46px}
  .starter{padding:10px 11px}
  .fcard{width:200px}
  .att-tray{margin-left:-10px}
  .starter .si{width:26px;height:26px;margin-bottom:6px}
  .foot{font-size:11px;padding-top:6px}
  .set-sec{padding:12px 16px}
  .modal{padding:0;align-items:end}
  .modal-in{border-radius:20px 20px 0 0;max-height:92dvh;width:100%;padding-bottom:env(safe-area-inset-bottom)}
}
@media (max-width:400px){
  .starter b{font-size:13px}
  .starter span{font-size:12px}
  .hello-t{font-size:26px}
}
@media (hover:none){
  .starter:hover{transform:none;box-shadow:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}
@media print{
  .side,.top,.composer,.foot,.starters,.acts{display:none!important}
  body.chat-on{padding:0;height:auto;overflow:visible;display:block}
  main{overflow:visible}
}

/* диалоги подтверждения и ввода — вместо системных окон браузера */
.dlg-wrap{z-index:90}
.dlg-wrap.out{opacity:0;transition:opacity .12s}
.dlg{background:var(--surface);border:1px solid var(--line);border-radius:18px;width:min(420px,100%);padding:22px 22px 18px;box-shadow:var(--shadow-lg);animation:cxpop .16s ease-out}
.dlg-t{font-size:17px;font-weight:650;letter-spacing:-.01em;color:var(--ink);margin:0 0 6px}
.dlg-x{font-size:14px;color:var(--ink2);line-height:1.5;margin:0 0 4px;white-space:pre-line;overflow-wrap:anywhere}
.dlg-in{margin:12px 0 2px;font-size:15px !important;padding:10px 12px !important}
.dlg-b{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.dlg-b .btn{min-width:96px;justify-content:center;padding:9px 16px}
.btn.btn-danger{background:var(--bad);color:#fff;border:0}
.btn.btn-danger:hover{background:color-mix(in srgb,var(--bad) 86%,#000)}
@media (max-width:640px){.dlg-wrap{align-items:end}.dlg{width:100%;border-radius:20px 20px 0 0;padding-bottom:calc(18px + env(safe-area-inset-bottom))}.dlg-b .btn{flex:1}}

/* ---------- Демо-версия: только просмотр примеров ---------- */
.demo .composer,.demo #attachTray,.demo #sideSettings,.demo #bell,.demo .chat-it .ic,.demo .ans-tools{display:none!important}
.dlg.dlg-wide{width:min(480px,100%)}
.acc-f{display:block;margin:12px 0 0}
.acc-f span{display:block;font-size:13px;color:var(--ink2);margin:0 0 5px}
.acc-f input,.acc-f textarea{width:100%;font-size:15px!important}
.acc-ck{display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--ink2);line-height:1.5;margin:14px 0 0;cursor:pointer}
.acc-ck input{width:17px;height:17px;margin:2px 0 0;flex:none;accent-color:var(--brand)}
.acc-ck a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
.acc-err{color:var(--bad);font-size:13.5px;margin:10px 0 0}
.dlg-b{flex-wrap:wrap}
.acc-act{white-space:nowrap}
.acc-off td{opacity:.5}
#v-access code{font-size:12.5px;white-space:nowrap}

/* =========================================================
   Оформление 2026-10-19: шапка, темы, демо-плашка, список чатов
   ========================================================= */
:root{--me-bg:#eef2f8;--top-h:64px}
[data-theme=dark]{--me-bg:#1f242c}
@keyframes cxlive{0%,100%{box-shadow:0 0 0 0 color-mix(in srgb,var(--ok) 45%,transparent)}60%{box-shadow:0 0 0 5px color-mix(in srgb,var(--ok) 0%,transparent)}}

/* фон чата: мягкое свечение сверху */
body.user.chat-on{background:radial-gradient(1000px 420px at calc(50% + var(--side-w) / 2) -190px,color-mix(in srgb,var(--brand) 10%,transparent),transparent 72%) no-repeat,var(--bg)}
@media (max-width:820px){body.user.chat-on{background:radial-gradient(700px 320px at 50% -150px,color-mix(in srgb,var(--brand) 10%,transparent),transparent 72%) no-repeat,var(--bg)}}

/* шапка */
.user .top{background:transparent}
.user .top::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,var(--line) 18%,var(--line) 82%,transparent);pointer-events:none}
.user .logo{font-size:17px;font-weight:700;letter-spacing:-.015em;flex:none}
.logo small{margin-top:3px}
.logo small .live{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--ok);margin:0 6px 0 1px;vertical-align:1px;animation:cxlive 2.6s ease-out infinite}

/* темы в шапке */
.topics{display:none}
.user .topics{display:flex;align-items:center;gap:2px;margin:0 auto;padding:4px;border-radius:999px;background:var(--soft2);border:1px solid var(--line);min-width:0}
.topics button{display:inline-flex;align-items:center;gap:7px;border:0;background:none;padding:7px 14px 7px 11px;border-radius:999px;font-size:13.5px;font-weight:550;color:var(--ink2);cursor:pointer;white-space:nowrap;transition:background .15s,color .15s,box-shadow .15s}
.topics svg{width:16px;height:16px;flex:none;color:var(--muted);transition:color .15s}
.topics button:hover{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(17,24,39,.06),0 2px 8px rgba(17,24,39,.06)}
.topics button:hover svg,.topics button.on svg{color:var(--brand)}
.topics button.on{background:var(--surface);color:var(--brand);box-shadow:0 1px 2px rgba(17,24,39,.06),0 2px 8px rgba(17,24,39,.06)}
.topics button:focus-visible{outline:2px solid var(--brand);outline-offset:1px}
.user .topics ~ .bell{margin-left:0}
.admin .topics{display:none!important}

/* кнопка «Получить доступ» в шапке (демо) */
.top-cta{border:0;cursor:pointer;padding:9px 18px;border-radius:999px;font-weight:600;font-size:13.5px;color:#fff;white-space:nowrap;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-2nd));box-shadow:0 6px 18px color-mix(in srgb,var(--brand) 28%,transparent);transition:filter .15s,transform .15s}
.top-cta:hover{filter:brightness(1.06);transform:translateY(-1px)}

/* метка режима на своём компьютере */
.mode-pill{display:inline-flex;align-items:center;gap:8px;padding:7px 13px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink2);font-size:13px;line-height:1;text-decoration:none;white-space:nowrap;flex:none}
.mode-pill i{width:8px;height:8px;border-radius:50%;background:var(--ok);flex:none}
.mode-pill b{font-weight:600;color:var(--brand)}
.mode-pill:hover{border-color:var(--chip-line)}

/* демо-плашка вместо поля ввода */
.demo-bar{display:flex;align-items:center;gap:14px;border-radius:26px;padding:10px 10px 10px 12px;box-shadow:var(--shadow-lg);border:1px solid transparent;
  background:linear-gradient(var(--surface),var(--surface)) padding-box,linear-gradient(115deg,color-mix(in srgb,var(--brand) 60%,var(--line2)),var(--line2) 40%,var(--line2) 60%,color-mix(in srgb,var(--brand-2nd) 60%,var(--line2))) border-box}
.demo-lock{width:44px;height:44px;border-radius:16px;display:grid;place-items:center;flex:none;color:var(--brand);background:var(--brand-soft)}
.demo-lock svg{width:20px;height:20px}
.demo-txt{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px;font-size:13.5px;color:var(--ink2);line-height:1.4}
.demo-txt b{font-size:14.5px;color:var(--ink);font-weight:650;letter-spacing:-.005em}
.demo-local{font-size:12.5px;color:var(--brand);text-decoration:none;margin-top:3px;width:max-content;max-width:100%}
.demo-local:hover{text-decoration:underline}
.demo-btns{display:flex;gap:8px;flex:none}
.demo-btns .btn{padding:11px 18px;border-radius:999px;font-weight:600;white-space:nowrap;justify-content:center}
#demoGet{background:linear-gradient(135deg,var(--brand),var(--brand-2nd));color:#fff;box-shadow:0 6px 18px color-mix(in srgb,var(--brand) 28%,transparent);transition:filter .15s,transform .15s}
#demoGet:hover{filter:brightness(1.06);transform:translateY(-1px)}
#demoGet svg{width:16px;height:16px}

/* список чатов */
.chat-it.on{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(17,24,39,.05),0 0 0 1px var(--line)}
.side-group{text-transform:uppercase;font-size:11px;letter-spacing:.06em}

/* адаптив */
@media (max-width:1260px){.topics button{padding:7px 10px}.topics span{display:none}.topics button{gap:0}}
@media (max-width:1060px){.user .topics{display:none}}
@media (max-width:820px){
  :root{--top-h:52px}
  .top-cta,.mode-pill{display:none!important}
  .user .top::after{left:0;right:0}
}
@media (max-width:640px){
  .demo-bar{flex-wrap:wrap;gap:12px;padding:12px;border-radius:22px}
  .demo-lock{width:40px;height:40px;border-radius:14px}
  .demo-txt{flex:1 1 calc(100% - 60px)}
  .demo-btns{width:100%}
  .demo-btns .btn{flex:1;padding:11px 10px}
}