:root{
  --orange:#F47B20; --orange-d:#E8690C; --blue:#1FA6E0; --dark:#2b2f33;
  --bg:#f4f6f8; --panel:#ffffff; --border:#dfe4e9; --muted:#7a848d;
  --ok:#2e9b5b; --shadow:0 1px 3px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--dark);font-size:14px}
.topbar{display:flex;justify-content:space-between;align-items:center;
  background:var(--panel);border-bottom:1px solid var(--border);
  padding:8px 16px;box-shadow:var(--shadow);position:sticky;top:0;z-index:10}
.brand{display:flex;align-items:center;gap:12px;font-weight:600}
.logo{height:30px}
.top-actions{display:flex;align-items:center;gap:8px}
.badge{background:#eef3f7;color:var(--muted);border-radius:12px;
  padding:3px 10px;font-size:12px}
.badge.live{background:#e7f6ee;color:var(--ok)}
.badge.off{background:#fdf0e6;color:var(--orange-d)}

.layout{display:grid;grid-template-columns:minmax(360px,2fr) 3fr;gap:14px;
  padding:14px;align-items:start;height:calc(100vh - 48px)}
.chat-col,.spec-col{background:var(--panel);border:1px solid var(--border);
  border-radius:10px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  height:100%;overflow:hidden}
.panel-title{padding:10px 14px;font-weight:600;border-bottom:1px solid var(--border);
  background:#fafbfc}

/* Чат */
.messages{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.msg{max-width:88%;padding:9px 12px;border-radius:12px;line-height:1.45;white-space:pre-wrap}
.msg.user{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:3px}
.msg.bot{align-self:flex-start;background:#eef2f5;border-bottom-left-radius:3px}
.msg.sys{align-self:center;background:#fff7ed;color:var(--orange-d);font-size:12px;
  border:1px dashed #f3c79a}
.composer{display:flex;gap:8px;padding:10px;border-top:1px solid var(--border)}
.composer textarea{flex:1;resize:none;border:1px solid var(--border);border-radius:8px;
  padding:8px;font:inherit}

/* Спецификация */
.tabs{display:flex;border-bottom:1px solid var(--border);background:#fafbfc}
.tab{border:none;background:none;padding:10px 16px;cursor:pointer;color:var(--muted);
  font-weight:600;border-bottom:2px solid transparent}
.tab.active{color:var(--dark);border-bottom-color:var(--orange)}
.tab-body{flex:1;overflow-y:auto;padding:12px 14px}
.tab-body.hidden,.hidden{display:none !important}

fieldset{border:1px solid var(--border);border-radius:8px;margin:0 0 12px;padding:10px 12px}
legend{font-weight:600;padding:0 6px;color:var(--dark)}
.row{display:flex;flex-direction:column;gap:4px;margin-bottom:8px}
.row label{font-size:12px;color:var(--muted)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
input[type=text],input[type=number],input[type=password],select,textarea{
  border:1px solid var(--border);border-radius:7px;padding:7px 9px;font:inherit;
  background:#fff;width:100%}
input:disabled{background:#f1f3f5;color:var(--muted)}
.radios{display:flex;flex-direction:column;gap:4px}
.radios label,.row label input{font-size:13px;color:var(--dark)}
.hint{font-size:12px;color:var(--muted);margin-top:6px}

/* строки позиций */
.line-rows{display:flex;flex-direction:column;gap:6px;margin-bottom:8px}
.lrow{display:grid;grid-template-columns:1fr 56px 70px 84px 28px;gap:6px;align-items:center}
.lrow.head{font-size:11px;color:var(--muted);font-weight:600}
.lrow input,.lrow select{padding:5px 6px}
.lrow .del{border:none;background:#fbe9e7;color:#c0392b;border-radius:6px;
  cursor:pointer;height:30px}
.cam-row{display:grid;grid-template-columns:38px 1fr 56px 104px 28px;gap:6px;
  align-items:center;margin-bottom:6px}
.cam-thumb{width:36px;height:36px;object-fit:contain;border:1px solid var(--border);
  border-radius:6px;background:#fff}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 8px}
.chip{border:1px solid var(--border);background:#fff;border-radius:14px;
  padding:3px 10px 3px 4px;font-size:12px;cursor:pointer;display:inline-flex;
  align-items:center;gap:5px}
.chip:hover{background:#fff3e9;border-color:var(--orange)}
.chip img{width:22px;height:22px;object-fit:contain;border-radius:4px}
.pr-row{display:flex;align-items:center;gap:8px}
.pr-thumb{width:40px;height:40px;object-fit:contain;flex-shrink:0;
  border:1px solid var(--border);border-radius:6px;background:#fff}
.slot-thumb{width:28px;height:28px;object-fit:contain;border:1px solid var(--border);
  border-radius:5px;vertical-align:middle;margin-right:5px;background:#fff}
.picker{position:relative}
.picker-results{position:absolute;z-index:30;left:0;right:0;top:100%;
  background:#fff;border:1px solid var(--border);border-radius:8px;
  box-shadow:0 6px 20px rgba(0,0,0,.15);max-height:260px;overflow-y:auto;margin-top:2px}
.pr-item{padding:6px 9px;cursor:pointer;border-bottom:1px solid #f0f2f4;font-size:12px}
.pr-item:hover{background:#f2f7fb}
.pr-item .pr-meta{color:var(--muted);font-size:11px}
.pr-empty{padding:8px;color:var(--muted);font-size:12px}
.src{font-size:10px;padding:2px 6px;border-radius:8px}
.src.live{background:#e7f6ee;color:var(--ok)} .src.fixed{background:#eef2f5;color:var(--muted)}
.src.fallback{background:#fdeaea;color:#c0392b} .src.manual{background:#fff3e0;color:var(--orange-d)}

/* Кнопки */
.btn{border:1px solid var(--border);background:#fff;border-radius:8px;padding:8px 14px;
  cursor:pointer;font:inherit;font-weight:600;color:var(--dark);text-decoration:none;
  display:inline-flex;align-items:center;gap:6px}
.btn:hover{background:#f2f5f8}
.btn.primary{background:var(--orange);border-color:var(--orange);color:#fff}
.btn.primary:hover{background:var(--orange-d)}
.btn.ghost{background:#fff}
.btn.small{padding:5px 10px;font-size:12px}
.btn.tiny{padding:2px 8px;font-size:11px;font-weight:500;margin-left:8px}
.btn.big{padding:11px 22px;font-size:15px}

/* Итог */
.build-bar{display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid var(--border);padding:10px 14px;background:#fafbfc;gap:10px}
.total-box{font-size:16px}
.total-box strong{color:var(--orange-d);font-size:20px}
.build-actions{display:flex;gap:8px;align-items:center}
.build-msg{padding:0 14px 10px;font-size:12px;color:var(--muted)}
.build-msg.err{color:#c0392b}

/* Предпросмотр */
.kp-preview{font-family:"Times New Roman",serif;background:#fff;color:#000;
  padding:6px 4px;font-size:13px;line-height:1.4}
.kp-preview h4{margin:10px 0 4px;font-size:14px}
.kp-preview p{margin:4px 0;text-align:justify}
.kp-preview table{border-collapse:collapse;width:100%;margin:6px 0;font-size:12px}
.kp-preview th,.kp-preview td{border:1px solid #000;padding:3px 5px}
.kp-preview th{background:#f2f2f2;text-align:center}
.kp-preview td.num{text-align:right} .kp-preview td.c{text-align:center}
.kp-preview .total-row td{font-weight:bold;text-align:right}
.kp-preview .note{font-style:italic}

/* Модалка */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;
  align-items:center;justify-content:center;z-index:50}
.modal-card{background:#fff;border-radius:12px;padding:20px;width:460px;max-width:92vw;
  box-shadow:0 10px 40px rgba(0,0,0,.25)}
.modal-card h3{margin:0 0 14px}
.modal-actions{display:flex;gap:8px;align-items:center;margin-top:14px}
.modal-actions .spacer{flex:1}
.settings-status{display:flex;align-items:center;gap:8px;margin-top:6px;flex-wrap:wrap}