/* Self-hosted Roboto (matches the docs site font; 600/800 added for this widget). */
  @font-face{font-family:Roboto;font-style:normal;font-weight:400;font-display:swap;src:url('/fonts/Roboto-Regular.woff2') format('woff2')}
  @font-face{font-family:Roboto;font-style:normal;font-weight:500;font-display:swap;src:url('/fonts/Roboto-Medium.woff2') format('woff2')}
  @font-face{font-family:Roboto;font-style:normal;font-weight:600;font-display:swap;src:url('/fonts/Roboto-SemiBold.woff2') format('woff2')}
  @font-face{font-family:Roboto;font-style:normal;font-weight:700;font-display:swap;src:url('/fonts/Roboto-Bold.woff2') format('woff2')}
  @font-face{font-family:Roboto;font-style:normal;font-weight:800;font-display:swap;src:url('/fonts/Roboto-ExtraBold.woff2') format('woff2')}
  :root{
    --navy:#292929; --navy2:#1a1a1a; --ink:#292929; --muted:#6b7280;
    --line:#ececec; --bg:#f6f6f6; --card:#ffffff; --accent:#ff6a00;
    --accent-soft:#fff1e8; --green:#2ebd59; --green-soft:#eafaef;
    --tg:#229ed9; --wa:#25d366; --max:#ff6a00; --av:#0aa5f0;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html,body{background:transparent}
  body{font-family:Roboto,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
    color:var(--ink);line-height:1.45;padding:10px;-webkit-font-smoothing:antialiased}
  .wrap{max-width:720px;margin:0 auto}
  .calc{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
    box-shadow:0 6px 22px rgba(20,33,62,.07)}
  .head{background:linear-gradient(135deg,#ff6a00 0%,#ff4444 100%);color:#fff;padding:13px 18px}
  .head h1{font-size:16px;font-weight:700;letter-spacing:-.2px}
  .head p{font-size:12px;color:#ffe2cf;margin-top:2px}
  .tabs{display:flex;gap:6px;padding:10px 14px 0}
  .tab{flex:1;text-align:center;cursor:pointer;user-select:none;font-size:13px;font-weight:600;
    color:var(--muted);padding:7px 8px;border-radius:9px;border:1px solid var(--line);background:#fafbff;transition:.15s}
  .tab:hover{border-color:#cdd3e6}
  .tab.active{color:#fff;background:var(--navy);border-color:var(--navy)}
  .body{padding:12px 16px 4px}
  .row{margin-bottom:11px}
  .label{font-size:12.5px;font-weight:600;color:var(--ink);margin-bottom:5px;display:flex;align-items:center;gap:7px}
  .seg{display:flex;gap:6px;flex-wrap:wrap}
  .seg button{flex:1 1 0;min-width:60px;cursor:pointer;font-size:12.5px;font-weight:600;color:var(--ink);
    background:#fff;border:1px solid var(--line);border-radius:9px;padding:6px 6px;transition:.12s}
  .seg button small{display:block;font-weight:500;font-size:10.5px;color:var(--muted);margin-top:1px}
  .seg button:hover{border-color:#cdd3e6}
  .seg button.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
  .seg button.on small{color:var(--accent)}
  /* product rows */
  .prod{display:flex;align-items:flex-start;gap:10px;border:1px solid var(--line);border-radius:11px;
    padding:8px 11px;margin-bottom:6px;transition:.12s}
  .prod.active{border-color:var(--accent);background:#fbfbff}
  .dot{width:30px;height:30px;border-radius:8px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
    color:#fff;font-weight:700;font-size:13px;margin-top:1px}
  .prod .p-main{flex:1;min-width:0}
  .prod .p-t{font-size:13.5px;font-weight:600}
  .p-tariff{display:inline-flex;gap:4px;margin-top:5px}
  .p-tariff button{font-size:11px;font-weight:600;color:var(--muted);background:#f4f5f9;border:1px solid var(--line);
    border-radius:7px;padding:3px 8px;cursor:pointer;transition:.12s}
  .p-tariff button:hover{border-color:#cdd3e6}
  .p-tariff button.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
  .p-cap{font-size:11px;color:var(--muted);margin-top:4px}
  .prod .right{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex:0 0 auto}
  .prod .p-sub{font-weight:800;color:var(--navy);font-size:13.5px;white-space:nowrap;text-align:right}
  .prod .p-sub.zero{color:#c2c8d4;font-weight:600}
  .stepper{display:flex;align-items:center;border:1px solid var(--line);border-radius:9px;overflow:hidden;flex:0 0 auto}
  .stepper button{width:30px;height:30px;border:none;background:#fafbff;font-size:17px;cursor:pointer;color:var(--ink);font-weight:600}
  .stepper button:hover{background:#eef0ff;color:var(--accent)}
  .stepper input{width:38px;border:none;text-align:center;font-size:14px;font-weight:700;outline:none;background:#fff;-moz-appearance:textfield}
  .stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none}
  .stepper.lg input{width:52px;font-size:15px}.stepper.lg button{width:38px;height:36px;font-size:18px}
  .toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--green-soft);
    border:1px solid #bbf7d0;border-radius:11px;padding:9px 12px}
  .toggle .t-txt{font-size:12.5px;font-weight:600;color:#15803d}
  .toggle .t-txt span{display:block;font-weight:500;font-size:11px;color:#16a34a;margin-top:1px}
  .switch{position:relative;width:44px;height:24px;flex:0 0 auto}
  .switch input{opacity:0;width:0;height:0}
  .slider{position:absolute;inset:0;background:#cbd5e1;border-radius:30px;transition:.2s;cursor:pointer}
  .slider:before{content:"";position:absolute;height:18px;width:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
  .switch input:checked + .slider{background:var(--green)}
  .switch input:checked + .slider:before{transform:translateX(20px)}
  .hint{font-size:11.5px;color:var(--muted);margin-top:5px;line-height:1.4}
  /* result */
  .result{background:var(--bg);border-top:1px solid var(--line);padding:13px 16px 16px;margin-top:6px}
  .res-grid{display:flex;gap:10px;flex-wrap:wrap}
  .res-card{flex:1 1 140px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
  .res-card .k{font-size:11px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.3px}
  .res-card .v{font-size:20px;font-weight:800;color:var(--navy);margin-top:3px;letter-spacing:-.5px}
  .res-card .s{font-size:11.5px;color:var(--muted);margin-top:2px}
  .res-card.hero{background:linear-gradient(135deg,#ffa841 0%,#ff4444 60%,#ff0000 100%);border:none}
  .res-card.hero .k{color:#ffe2cf}.res-card.hero .v{color:#fff}.res-card.hero .s{color:#ffd9c2}
  .save{display:inline-flex;align-items:center;gap:6px;margin-top:10px;background:var(--green-soft);
    color:#15803d;font-size:12.5px;font-weight:700;border:1px solid #bbf7d0;border-radius:9px;padding:6px 11px}
  .breakdown{margin-top:10px;font-size:12px;color:var(--muted)}
  .breakdown table{width:100%;border-collapse:collapse}
  .breakdown td{padding:4px 0;border-bottom:1px dashed var(--line)}
  .breakdown td:last-child{text-align:right;font-weight:600;color:var(--ink)}
  .breakdown tr:last-child td{border-bottom:none}
  .dialogs{margin-top:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px}
  .dialogs h3{font-size:13.5px;font-weight:700;margin-bottom:3px}
  .dialogs p{font-size:11.5px;color:var(--muted);margin-bottom:10px}
  .cta{display:block;text-align:center;margin-top:12px;color:#fff;text-decoration:none;
    background:linear-gradient(135deg,#ffa841 0%,#ff4444 55%,#ff0000 100%);
    font-weight:700;font-size:14px;padding:11px;border-radius:11px;transition:.15s;
    box-shadow:0 4px 12px rgba(255,68,68,.26)}
  .cta:hover{filter:brightness(1.05)}
  .foot{font-size:10.5px;color:#9aa1b2;text-align:center;padding:9px 16px 13px}
  .hidden{display:none}
  @media(max-width:520px){.head h1{font-size:15px}.res-card .v{font-size:18px}.prod{gap:9px}}