:root{
  --blue:#1e6fd9; --blue-dark:#1558b0; --blue-light:#eaf2fd;
  --bg:#f4f6fa; --border:#e4e9f2; --text:#1c2330; --muted:#69758a;
  --green:#1f9d55; --green-bg:#eaf7ef; --red:#e03b3b; --amber:#b07f16; --radius:16px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0}
.calc-app{max-width:1180px;margin:0 auto;padding:24px 16px;font-family:-apple-system,'Segoe UI',Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);overflow-x:hidden}
.calc-head{margin-bottom:20px}
.calc-head h1{font-size:26px;margin:0 0 6px}
.calc-head p{margin:0;color:var(--muted);font-size:14px}
.calc-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}
.panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:0 2px 8px rgba(20,40,80,.05);margin-bottom:20px}
.panel:last-child{margin-bottom:0}
.panel-title{font-size:18px;font-weight:700;margin:0 0 16px}
.field{margin-bottom:16px}
.field>label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:7px}
.hint{font-size:12px;color:var(--muted);margin-top:6px}
.field-row{display:flex;gap:14px;flex-wrap:wrap}
.field-row>.field{flex:1 1 220px;min-width:0;margin-bottom:0}
.stepper{display:flex;align-items:center;gap:8px}
.stepper button{width:40px;height:42px;border-radius:10px;border:1px solid var(--border);background:#fff;font-size:18px;color:var(--blue);cursor:pointer;flex:none}
.stepper button:hover{background:var(--blue-light)}
.stepper input{width:90px;height:42px;text-align:center;border:1px solid var(--border);border-radius:10px;font-size:16px;font-weight:600;max-width:100%}
input[type=range]{width:100%;accent-color:var(--blue);margin-top:10px;display:block}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg-btn{padding:9px 14px;border-radius:10px;border:1px solid var(--border);background:#f7f9fc;font-size:14px;cursor:pointer;color:var(--muted);transition:.15s}
.seg-btn:hover{border-color:var(--blue)}
.seg-btn.active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.seg-desc{font-size:12px;color:var(--muted);margin-top:6px;min-height:16px}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);margin-top:10px;cursor:pointer}
.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:14px 0}
.price-grid label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.field-input{width:100%;height:42px;border:1px solid var(--border);border-radius:10px;padding:0 12px;font-size:15px;background:#fff}
.field-input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,111,217,.12)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 14px}
.chip{padding:7px 13px;border-radius:20px;border:1px solid var(--border);background:#f7f9fc;font-size:13px;cursor:pointer;color:var(--text)}
.chip.off{opacity:.45;text-decoration:line-through;border-style:dashed}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.fuel-table{width:100%;min-width:640px;table-layout:fixed;border-collapse:collapse;font-size:14px}
.fuel-table th{font-size:12px;color:var(--muted);font-weight:600;text-align:left;padding:8px 10px;border-bottom:2px solid var(--border)}
.fuel-table td{padding:10px;border-bottom:1px solid var(--border);vertical-align:middle}
.fuel-table th.num,.fuel-table td.num{text-align:right;white-space:nowrap}
.best{background:var(--green-bg)}
.best-tag{color:var(--green);font-weight:700;font-size:12px;white-space:nowrap}
.bar{height:8px;background:#e8eef7;border-radius:4px;overflow:hidden;min-width:70px}
.bar i{display:block;height:100%;background:var(--blue);border-radius:4px}
.status-ok{color:var(--green);font-size:13px;margin-top:8px}
.status-def{color:var(--amber);font-size:13px;margin-top:8px}
.gh-card{background:var(--blue-light);border-radius:12px;padding:14px 16px;margin-top:12px}
.gh-card div{display:flex;justify-content:space-between;gap:10px;font-size:14px;padding:5px 0}
.gh-card div span:last-child{font-weight:700;text-align:right}
.gh-warn{font-size:13px;color:var(--muted);margin-top:10px}
.side{position:sticky;top:16px;display:flex;flex-direction:column;gap:16px}
.kpi-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;box-shadow:0 2px 8px rgba(20,40,80,.05)}
.kpi-card .t{font-size:13px;color:var(--muted);margin-bottom:4px}
.kpi-card .v{font-size:24px;font-weight:800;color:var(--blue)}
.kpi-card .s{font-size:12px;color:var(--muted);margin-top:3px}
.estimate table{width:100%;border-collapse:collapse;font-size:14px}
.estimate td{padding:7px 0;border-bottom:1px dashed var(--border)}
.estimate td:last-child{text-align:right;white-space:nowrap;font-weight:600}
.total{background:linear-gradient(135deg,#1e6fd9,#3f8ef0);color:#fff;border-radius:var(--radius);padding:18px 22px}
.total .t{font-size:13px;opacity:.85}
.total .sum{font-size:28px;font-weight:800;margin-top:4px}
.note{font-size:12px;color:var(--muted);margin-top:10px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid .full{grid-column:1/-1}
.form-grid label{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}
.field-err{color:var(--red);font-size:12px;margin-top:4px;display:none}
.field-input.err{border-color:var(--red)}
.btn-submit{width:100%;height:48px;background:var(--blue);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:700;cursor:pointer;margin-top:6px}
.btn-submit:hover{background:var(--blue-dark)}
.btn-submit:disabled{opacity:.6;cursor:default}
.form-msg{margin-top:10px;font-size:14px;display:none;padding:10px 12px;border-radius:10px}
.form-msg.ok{display:block;background:var(--green-bg);color:var(--green)}
.form-msg.bad{display:block;background:#fdeaea;color:var(--red)}
.consent{font-size:12px;color:var(--muted);margin-top:10px}

/* ===== АДАПТИВ ===== */
@media(max-width:1024px){
  .calc-grid{grid-template-columns:1fr}
  .side{position:static}
}
@media(max-width:768px){
  .calc-app{padding:14px 10px}
  .panel{padding:14px;border-radius:12px}
  .calc-head h1{font-size:20px}
  .field-row{gap:10px}
  .field-row>.field{flex:1 1 100%}
  .price-grid{grid-template-columns:1fr 1fr}
  .fuel-table{min-width:560px;font-size:13px}
  .form-grid{grid-template-columns:1fr}
  .total{padding:14px 16px}
  .total .sum{font-size:24px}
  .kpi-card .v{font-size:20px}
  .gh-card div{font-size:13px}
}
@media(max-width:600px){
  .seg{flex-direction:column}
  .seg-btn{width:100%;flex:0 0 auto;text-align:center;padding:10px 8px;font-size:13px}
}
@media(max-width:420px){
  .stepper button{width:36px;height:38px}
  .stepper input{width:70px;height:38px;font-size:15px}
  .chip{padding:6px 10px;font-size:12px}
  .btn-submit{height:44px;font-size:15px}
  .field-input{height:40px;font-size:16px}
}
/* Жёсткая фиксация ширины */
html,body{max-width:100%;overflow-x:hidden}
.calc-app{width:100%;max-width:100%}
.calc-app *{min-width:0;max-width:100%;box-sizing:border-box}
.calc-app table{max-width:100%}
.field-row,.seg,.chips,.price-grid,.form-grid,.stepper,.calc-grid{width:100%;max-width:100%}
.field-row>.field,.seg,.seg-btn,.chip,.field-input,.btn-submit{white-space:normal;overflow-wrap:anywhere;word-break:break-word}