/* LDM / CBM calculator page (scripts/site/pages/calculator.js). Tokens and base components: /assets/css/site.css.
   Rules: scripts/site/DESIGN.md (flat surfaces, 1px borders, radius 10, no stripes or chips). */

.calc-hero{padding:52px 0 44px}
.calc-hero h1{max-width:760px}
.breadcrumb li[aria-current="page"]{color:#e6ecf1}
.calc-section{padding:56px 0 72px}
.calc-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;grid-template-rows:auto 1fr;gap:0 40px;align-items:start}
.calc-form{grid-column:1;grid-row:1}
.calc-results{grid-column:2;grid-row:1/span 2}
.calc-assumptions{grid-column:1;grid-row:2}
.calc-form h2,.calc-results h2{font-size:24px;letter-spacing:-.2px;margin:0 0 6px}
.calc-intro{margin:0 0 18px;color:var(--muted);font-size:15px}

/* Input rows: one line per size on desktop, a small card per row on phones */
.calc-rows{border-top:1px solid var(--line)}
.calc-row{display:grid;grid-template-columns:minmax(150px,1.9fr) repeat(4,minmax(58px,.7fr)) minmax(70px,.85fr) auto auto;gap:10px;align-items:end;margin:0;padding:14px 0 10px;border:0;border-bottom:1px solid var(--line);min-width:0}
.calc-row-title{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.calc-field{min-width:0}
.calc-field label{display:block}
.calc-lbl{display:block;font-size:12px;font-weight:700;color:#38414b;line-height:1.3;margin-bottom:6px}
.calc-row+.calc-row .calc-lbl{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.calc-field input[type="text"],.calc-field select{display:block;width:100%;min-width:0;height:44px;border:1px solid #d7dde2;border-radius:7px;padding:0 10px;font:inherit;font-size:15px;background:#fff;color:var(--ink)}
.calc-field select{padding-right:4px;font-size:14px}
.calc-field input:focus,.calc-field select:focus{outline:2px solid #f0782433;border-color:var(--orange)}
.calc-field input[aria-invalid="true"]{border-color:#b3261e;background:#fdf3f2}
.calc-check{display:flex!important;align-items:center;gap:8px;height:44px;font-size:13px;font-weight:600;color:#38414b;cursor:pointer;white-space:nowrap}
.calc-check input{width:18px;height:18px;margin:0;accent-color:var(--orange)}
.calc-remove{height:44px;padding:0 6px;border:0;background:none;font:inherit;font-size:13px;font-weight:600;color:var(--muted);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.calc-remove:hover{color:#8a2a1d}
.calc-remove:disabled{visibility:hidden}
.calc-row-out{grid-column:1/-1;margin:0;font-size:13px;color:var(--muted)}
.calc-row-out.is-pending{color:#8a939c}

.calc-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.calc-btn{min-height:44px;padding:0 16px;border:1px solid var(--navy);border-radius:7px;background:#fff;color:var(--navy);font:inherit;font-size:14px;font-weight:700;cursor:pointer}
.calc-btn:hover{background:var(--pale)}
.calc-btn:disabled{opacity:.5;cursor:not-allowed}
.calc-btn-quiet{border-color:#d7dde2;color:#38414b}

/* Results panel */
.calc-results{background:var(--pale);border:1px solid var(--line);border-radius:10px;padding:24px}
.calc-live{margin:0 0 14px;font-size:14px;color:var(--muted)}
.calc-results:not(.is-empty) .calc-live{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;margin:0}
.calc-totals{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px;margin:8px 0 22px}
.calc-totals dt{font-size:13px;color:var(--muted)}
.calc-totals dd{margin:2px 0 0;font-size:26px;font-weight:700;line-height:1.15;color:var(--navy);font-variant-numeric:tabular-nums}
.calc-unit{font-size:15px;font-weight:600;color:var(--muted)}
.calc-results h3{font-size:15px;margin:0 0 10px;color:var(--ink)}
.calc-trailer,.calc-quote{padding-top:18px;margin-top:18px;border-top:1px solid #dde3e8}
.calc-trailer{margin-top:0}
.calc-floor{height:26px;border:1px solid #b9c3cc;border-radius:4px;background:#fff;overflow:hidden}
.calc-floor span{display:block;height:100%;width:0;background:var(--orange)}
.calc-floor.is-over span{background:var(--orange-dark)}
.calc-floor-scale{display:flex;justify-content:space-between;margin:4px 0 8px;font-size:12px;color:var(--muted)}
.calc-trailer p:last-child{margin:0;font-size:14px;font-weight:600;color:var(--ink)}
.calc-note{margin:16px 0 0;font-size:13px;color:#4a535d;line-height:1.5}
.calc-quote p{margin:0 0 14px;font-size:13px;color:var(--muted)}
.calc-quote-links{display:grid;gap:10px}
.calc-quote-links .btn{width:100%;text-align:center}
.calc-btn-line{background:#fff;color:var(--navy);border:1px solid var(--navy)}
.calc-btn-line:hover{background:#fff;color:var(--orange-text);border-color:var(--orange-text)}

/* Assumptions: label left, text right */
.calc-assumptions{margin-top:44px}
.calc-assumptions h2{font-size:22px;letter-spacing:-.2px;margin:0 0 14px}
.calc-assumptions dl{margin:0;border-top:1px solid var(--line)}
.calc-assumptions dl div{display:grid;grid-template-columns:minmax(160px,26%) 1fr;gap:24px;padding:12px 0;border-bottom:1px solid var(--line)}
.calc-assumptions dt{font-size:15px;font-weight:700}
.calc-assumptions dd{margin:0;font-size:15px;color:#38414b}

/* Explanation: terms left, worked example right */
.calc-explain{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}
.calc-explain h2{margin-top:0}
.calc-explain-text>p{color:var(--muted);font-size:16px;margin:0 0 22px}
.calc-terms{margin:0}
.calc-terms div+div{margin-top:18px}
.calc-terms dt{font-size:17px;font-weight:700}
.calc-terms dd{margin:4px 0 0;font-size:15px;color:#38414b;line-height:1.6}
.calc-example{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px}
.calc-example h3{font-size:19px;margin:0 0 6px}
.calc-example p{margin:0;font-size:15px;color:#38414b}
.calc-example p:last-child{margin-top:16px;color:var(--muted);font-size:14px}
.calc-table-wrap{overflow-x:auto;margin-top:14px}
.calc-example table{width:100%;border-collapse:collapse;font-size:14px}
.calc-example th,.calc-example td{padding:9px 8px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.calc-example thead th{font-size:12px;font-weight:700;color:var(--muted);padding-top:0}
.calc-example tbody th{font-weight:600;color:var(--ink)}
.calc-example td{color:#4a535d}
.calc-example td:last-child{text-align:right;font-weight:700;color:var(--ink);white-space:nowrap;font-variant-numeric:tabular-nums}
.calc-example thead th:last-child{text-align:right}

/* Groupage or full truck: text left, two short lists right */
.calc-ltl{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:64px;align-items:start}
.calc-ltl h2{margin-top:0}
.calc-ltl-text p{margin:0 0 14px;font-size:16px;color:#38414b;line-height:1.65}
.calc-ltl-text a{color:var(--orange-text);text-decoration:underline;text-underline-offset:3px}
.calc-ltl-text a:hover{color:var(--orange-dark)}
.calc-ltl-lists h3{font-size:17px;margin:0 0 8px}
.calc-ltl-lists ul{margin:0 0 24px;padding-left:1.2em;display:grid;gap:6px;font-size:15px;color:#38414b}
.calc-ltl-lists li::marker{color:#9aa5b0}
#faq .section-head h2{margin-top:0}

@media (max-width:1100px){
  .calc-grid{grid-template-columns:minmax(0,1fr) 340px;column-gap:28px}
}
@media (max-width:980px){
  .calc-grid{grid-template-columns:1fr;grid-template-rows:none}
  .calc-form,.calc-results,.calc-assumptions{grid-column:1;grid-row:auto}
  .calc-results{margin-top:32px}
  .calc-explain,.calc-ltl{grid-template-columns:1fr;gap:32px}
}
@media (max-width:720px){
  .calc-rows{border-top:0}
  .calc-row{grid-template-columns:1fr 1fr;gap:12px;padding:12px 14px 14px;margin-bottom:12px;border:1px solid var(--line);border-radius:10px;background:#fff}
  .calc-row-title{position:static;width:auto;height:auto;overflow:visible;clip:auto;white-space:normal;float:left;grid-column:1;grid-row:1;align-self:center;width:auto;padding:0;margin:0;font-size:14px;font-weight:700;color:var(--navy)}
  .calc-row+.calc-row .calc-lbl{position:static;width:auto;height:auto;overflow:visible;clip:auto;white-space:normal}
  .calc-f-preset{grid-column:1/-1}
  .calc-f-remove{grid-column:2;grid-row:1;justify-self:end}
  .calc-remove{height:32px}
  .calc-row-out{border-top:1px solid var(--line);padding-top:10px}
  .calc-actions .calc-btn{flex:1 1 auto}
  .calc-assumptions dl div{grid-template-columns:1fr;gap:2px}
}
@media (max-width:540px){
  .page-hero.calc-hero{padding:36px 0 32px}
  .calc-hero h1{font-size:30px;letter-spacing:-.2px}
  .calc-hero p{font-size:15px}
  .calc-section{padding:36px 0 52px}
  .calc-results{padding:18px}
  .calc-totals dd{font-size:22px}
  .calc-example{padding:16px}
  .calc-example th,.calc-example td{padding:8px 5px;font-size:13px}
}