/* File: assets/css/bd-tools.css - FAR calculator, calculator, unit converter (public page, company panel, client portal) */
.bdt { --t1: #FFFFFF; --t2: rgba(235,235,245,.82); --t3: rgba(235,235,245,.58); --line: rgba(255,255,255,.10); --card: rgba(255,255,255,.07); --field: rgba(255,255,255,.08);
  --acc: #0A84FF; --amber: #FFD166; --red: #FFADA8; color: var(--t2); font: 400 13px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Segoe UI", Arial, sans-serif; }
.bdt *, .bdt *::before, .bdt *::after { box-sizing: border-box; }
.bdt h4 { margin: 0 0 8px; color: var(--t1); font-size: 14.5px; font-weight: 600; }
.bdt b { color: var(--t1); font-weight: 600; }
.bdt a { color: #64B5FF; }
.bdt [hidden] { display: none !important; }
.bdt-tabs { display: flex; flex-wrap: wrap; gap: 3px; padding: 3px; border-radius: 9px; background: rgba(255,255,255,.08); width: fit-content; max-width: 100%; margin-bottom: 16px; }
.bdt-tabs button { border: 0; background: none; color: var(--t2); font: inherit; font-size: 13px; padding: 7px 16px; border-radius: 7px; cursor: pointer; }
.bdt-tabs button[aria-selected="true"] { background: rgba(255,255,255,.18); color: var(--t1); font-weight: 600; box-shadow: 0 1px 2px rgba(0,0,0,.25); }
.bdt-card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; min-width: 0; }
.bdt-two { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 14px; align-items: start; }
.bdt-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; } .bdt-between { justify-content: space-between; }
.bdt-note { color: var(--t3); font-size: 12px; margin: 8px 0 0; }
.bdt-muted { color: var(--t3); padding: 8px 2px; }
.bdt-warn { margin: 10px 0 0; padding: 8px 12px; border-radius: 8px; background: rgba(255,214,10,.10); border: 1px solid rgba(255,214,10,.25); color: #FFE08A; font-size: 12.5px; }
.bdt-link { border: 0; background: none; color: #64B5FF; font: inherit; font-size: 12px; cursor: pointer; padding: 6px 0 0; }
.bdt-btn { display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 14px; border-radius: 7px; border: 0; background: rgba(255,255,255,.12); color: var(--t1); font: 600 12.5px -apple-system, "Segoe UI", Arial, sans-serif; cursor: pointer; text-decoration: none; }
.bdt-btn:hover { background: rgba(255,255,255,.18); }
.bdt-seg { display: inline-flex; gap: 2px; padding: 2px; border-radius: 7px; background: rgba(255,255,255,.08); }
.bdt-seg.bdt-wrap { flex-wrap: wrap; margin-bottom: 12px; }
.bdt-seg button { border: 0; background: none; color: var(--t2); font: inherit; font-size: 12.5px; padding: 5px 12px; border-radius: 5px; cursor: pointer; }
.bdt-seg button[aria-pressed="true"] { background: var(--acc); color: #fff; font-weight: 600; }
.bdt-fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; align-items: end; margin-top: 8px; }
.bdt label { display: flex; flex-direction: column; gap: 4px; font-size: 11.5px; color: var(--t3); }
.bdt input[type="number"], .bdt input[type="search"], .bdt input[type="text"], .bdt select { height: 34px; width: 100%; padding: 0 10px; border-radius: 7px; border: 1px solid rgba(255,255,255,.14); background: var(--field); color: var(--t1); font: inherit; font-size: 13px; outline: none; }
.bdt select option { background: #2A2830; color: #fff; }
.bdt input:focus, .bdt select:focus { border-color: var(--acc); box-shadow: 0 0 0 3px rgba(10,132,255,.25); }
.bdt-swap { height: 34px; width: 38px; border-radius: 7px; border: 0; background: rgba(255,255,255,.12); color: var(--t1); font-size: 16px; cursor: pointer; align-self: end; }
.bdt-details { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 10px; }
.bdt-details summary { cursor: pointer; color: #9CCBFF; font-size: 12.5px; }
.bdt-table table, .bdt-steps { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 12.5px; }
.bdt-table td, .bdt-steps td { padding: 7px 8px; border-bottom: 1px solid var(--line); color: var(--t2); vertical-align: top; }
.bdt-table tr.on td { background: rgba(10,132,255,.14); color: var(--t1); }
.bdt-table td.n { text-align: right; color: var(--t1); font-variant-numeric: tabular-nums; }
.bdt-steps td:first-child { color: var(--t3); width: 34%; }
.bdt-big { margin-top: 12px; font-size: 18px; color: var(--t2); } .bdt-big b { font-size: 22px; }
/* calculator */
.bdt-screen { margin: 12px 0 8px; padding: 12px 14px; border-radius: 10px; background: rgba(0,0,0,.25); text-align: right; min-height: 78px; overflow: hidden; }
.bdt-expr { color: var(--t3); font-size: 13px; min-height: 18px; word-break: break-all; }
.bdt-val { color: var(--t1); font-size: 30px; font-weight: 500; font-variant-numeric: tabular-nums; word-break: break-all; }
.bdt-mem { display: flex; gap: 4px; align-items: center; margin-bottom: 8px; } .bdt-mem button { border: 0; background: none; color: var(--t3); font: inherit; font-size: 12px; padding: 4px 8px; border-radius: 5px; cursor: pointer; } .bdt-mem button:hover { background: rgba(255,255,255,.08); color: var(--t1); }
.bdt-mem span { margin-left: auto; color: var(--t3); font-size: 12px; }
.bdt-keys, .bdt-sci { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; } .bdt-sci { grid-template-columns: repeat(5, 1fr); margin-bottom: 6px; }
.bdt-keys button, .bdt-sci button { height: 48px; border: 0; border-radius: 10px; background: rgba(255,255,255,.10); color: var(--t1); font: 500 17px -apple-system, "Segoe UI", Arial, sans-serif; cursor: pointer; transition: background .1s; }
.bdt-sci button { height: 38px; font-size: 13px; background: rgba(255,255,255,.06); }
.bdt-keys button:hover, .bdt-sci button:hover { background: rgba(255,255,255,.18); }
.bdt-keys button.op { background: rgba(255,255,255,.16); } .bdt-keys button.fn { color: var(--red); } .bdt-keys button.eq { background: var(--acc); }
.bdt-hist { list-style: none; margin: 0; padding: 0; max-height: 420px; overflow-y: auto; }
.bdt-hist button { width: 100%; display: flex; justify-content: space-between; gap: 10px; border: 0; background: none; color: var(--t3); font: inherit; padding: 7px 4px; border-bottom: 1px solid var(--line); cursor: pointer; text-align: left; }
.bdt-hist button:hover { background: rgba(255,255,255,.05); } .bdt-hist span { overflow-wrap: anywhere; }
/* FAR */
.bdt-far { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 14px; align-items: start; }
.bdt-farin { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.bdt-result { position: sticky; top: 14px; }
.bdt-step { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 6px; }
.bdt-step > i { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--acc); color: #fff; font-style: normal; font-weight: 700; font-size: 13px; display: grid; place-items: center; }
.bdt-step h4 { margin: 2px 0 2px; }
.bdt-search { position: relative; margin-top: 8px; }
.bdt-results { display: flex; flex-direction: column; gap: 2px; max-height: 300px; overflow-y: auto; margin-top: 6px; }
.bdt-results button { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; text-align: left; border: 0; border-radius: 7px; background: rgba(255,255,255,.05); color: var(--t2); font: inherit; padding: 7px 10px; cursor: pointer; }
.bdt-results button:hover { background: rgba(10,132,255,.20); } .bdt-results small { color: var(--t3); font-size: 11.5px; }
.bdt-or { display: flex; align-items: center; gap: 10px; color: var(--t3); font-size: 11.5px; margin: 12px 0 0; } .bdt-or::before, .bdt-or::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.bdt-guide { margin: 8px 0; padding-left: 18px; color: var(--t2); font-size: 12.5px; } .bdt-guide li { margin: 6px 0; }
.bdt-block { margin-top: 12px; padding: 12px; border-radius: 10px; background: rgba(10,132,255,.10); border: 1px solid rgba(10,132,255,.35); }
.bdt-blockh small { display: block; color: var(--t3); font-size: 11.5px; } .bdt-blockh b { font-size: 16px; } .bdt-blockh span { display: block; color: var(--t2); }
.bdt-block dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; margin: 10px 0 0; }
.bdt-block dl div { padding: 6px 8px; border-radius: 7px; background: rgba(0,0,0,.18); } .bdt-block dt { color: var(--t3); font-size: 11px; } .bdt-block dd { margin: 2px 0 0; color: var(--t1); font-weight: 600; }
.bdt-incs { display: flex; flex-direction: column; gap: 4px; margin-top: 6px; }
.bdt .bdt-chk { flex-direction: row; align-items: flex-start; gap: 9px; padding: 7px 8px; border-radius: 7px; color: var(--t2); font-size: 12.5px; cursor: pointer; }
.bdt .bdt-chk:hover { background: rgba(255,255,255,.05); } .bdt-chk input[type="checkbox"] { margin-top: 2px; accent-color: var(--acc); width: 15px; height: 15px; flex: none; }
.bdt .bdt-numrow { align-items: center; } .bdt-numrow input { width: 90px !important; flex: none; margin-left: auto; }
.bdt-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; margin: 8px 0 4px; }
.bdt-kpis div { padding: 10px 12px; border-radius: 10px; background: rgba(255,255,255,.07); border: 1px solid var(--line); }
.bdt-kpis small { display: block; color: var(--t3); font-size: 11px; } .bdt-kpis b { display: block; font-size: 22px; line-height: 1.25; margin-top: 2px; } .bdt-kpis span { color: var(--t3); font-size: 11.5px; }
.bdt-kpis div:first-child b { color: var(--amber); }
@media (max-width: 980px) { .bdt-two, .bdt-far { grid-template-columns: 1fr; } .bdt-result { position: static; } }
@media print {
  body * { visibility: hidden !important; }
  .bdt-result, .bdt-result * { visibility: visible !important; }
  .bdt-result { position: absolute !important; left: 0; top: 0; width: 100%; background: #fff !important; color: #111 !important; border: 0 !important; }
  .bdt-result * { color: #111 !important; background: transparent !important; border-color: #ccc !important; }
  .bdt-result [data-print] { display: none !important; }
}

/* public /tools page shell */
html.bdt-html { background: #14183A; }
body.bdt-page { margin: 0; min-height: 100vh; background: #14183A url("../brand/wallpaper.svg") center / cover no-repeat fixed; color: rgba(235,235,245,.82); font: 400 13px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Segoe UI", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
.bdt-top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px; padding: 12px 22px; padding-top: calc(12px + env(safe-area-inset-top, 0px)); background: rgba(24,22,30,.72); -webkit-backdrop-filter: blur(24px) saturate(180%); backdrop-filter: blur(24px) saturate(180%); border-bottom: 1px solid rgba(255,255,255,.10); }
.bdt-top img { height: 26px; display: block; } .bdt-top nav { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; }
.bdt-top a.bdt-btn { height: 30px; font-size: 12.5px; } .bdt-top a.bdt-btn.p { background: #0A84FF; }
.bdt-wrapx { max-width: 1320px; margin: 22px auto 40px; padding: 22px; border-radius: 14px; background: rgba(34,32,38,.84); border: 1px solid rgba(255,255,255,.14); box-shadow: 0 40px 100px rgba(0,0,0,.45); -webkit-backdrop-filter: blur(40px) saturate(180%); backdrop-filter: blur(40px) saturate(180%); }
.bdt-hero h1 { margin: 0; color: #fff; font-size: 26px; font-weight: 500; letter-spacing: -0.01em; } .bdt-hero p { margin: 6px 0 18px; color: rgba(235,235,245,.6); font-size: 15px; }
.bdt-foot { text-align: center; color: rgba(235,235,245,.5); font-size: 12px; padding: 0 16px calc(24px + env(safe-area-inset-bottom, 0px)); }
@media (max-width: 760px) { .bdt-wrapx { margin: 0; border-radius: 0; padding: 16px 12px; } .bdt-top { padding-left: 12px; padding-right: 12px; } }
@media print { body.bdt-page { background: #fff !important; } .bdt-top, .bdt-foot { display: none !important; } }
/* drop-down group headings readable on every system (Windows draws them white) */
.bdt select optgroup { background: #2A2830; color: #9CCBFF; font-style: normal; font-weight: 600; }
.bdt select option { background: #2A2830; color: #FFFFFF; }
/* setbacks: plot drawing + four sides */
.bdt-sbh { margin: 14px 0 6px !important; font-size: 13px !important; }
.bdt-sb { display: grid; grid-template-columns: 220px 1fr; gap: 12px; align-items: center; padding: 10px; border-radius: 10px; background: rgba(255,255,255,.05); border: 1px solid var(--line); color: var(--t2); }
.bdt-sb svg { width: 100%; height: auto; color: var(--t2); }
.bdt-sb table { width: 100%; border-collapse: collapse; font-size: 12.5px; } .bdt-sb td { padding: 5px 6px; border-bottom: 1px solid var(--line); } .bdt-sb td:first-child { color: var(--t3); } .bdt-sb td:last-child { color: var(--t1); font-weight: 600; text-align: right; }
@media (max-width: 560px) { .bdt-sb { grid-template-columns: 1fr; } .bdt-sb svg { max-width: 260px; margin: 0 auto; } }
/* /tools inside the home-page frame */
.lp2 .bdt-wrapx { position: relative; z-index: 1; margin: 22px auto 30px; width: calc(100% - 44px); }
.lp2 .bdt-foot { position: relative; z-index: 1; }
@media (max-width: 760px) { .lp2 .bdt-wrapx { width: 100%; margin: 0; } }
/* FAR report sections (14 Dec 2025 update) */
.bdt-steps tr.bdt-sec th { text-align: left; padding: 12px 8px 6px; font-size: 12.5px; font-weight: 600; color: var(--t1); border-bottom: 1px solid var(--line); letter-spacing: .01em; }
.bdt-steps tr:first-child.bdt-sec th { padding-top: 4px; }
.bdt-steps td.bdt-cmpcell { padding: 4px 0 8px; width: auto; }
.bdt-cmp { margin-top: 2px; }
.bdt-cmp th { text-align: left; font-size: 11.5px; font-weight: 600; color: var(--t3); padding: 6px 8px; border-bottom: 1px solid var(--line); }
.bdt-steps .bdt-cmp td:first-child { width: 42%; }
.bdt-cmp .ok { color: #30D158; font-weight: 600; } .bdt-cmp .bad { color: #FF6961; font-weight: 600; }
.bdt-chk.bdt-sub { margin-left: 26px; opacity: .9; font-size: 12px; }
.bdt-results button b span[lang="bn"], .bdt-blockh b span[lang="bn"] { font-weight: 500; color: var(--t3); margin-left: 4px; }
.bdt-far td, .bdt-far th, .lp2 .bdt-far td, .lp2 .bdt-far th { white-space: normal; height: auto; overflow-wrap: anywhere; }
.bdt-sb td:last-child, .lp2 .bdt-sb td:last-child { white-space: nowrap; overflow-wrap: normal; }