/* Pipe Support Analysis — giao diện web */

:root {
  --bg: #0a0f1c;
  --bg2: #0d1424;
  --panel: #111a2e;
  --panel2: #16203a;
  --line: #1f2b46;
  --line2: #2b3a5c;
  --fg: #e9eef8;
  --fg2: #9fb0cb;
  --fg3: #64748b;
  --flame: #f5a524;
  --flame2: #ffc860;
  --steel: #4fb3d9;
  --weld: #34d399;
  --bad: #e5544b;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Consolas, 'Cascadia Code', monospace;
  --r: 10px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--steel); }
::selection { background: var(--flame); color: #10131a; }

/* ---------- header ---------- */
header {
  position: sticky; top: 0; z-index: 40;
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: -.01em; }
.brand svg { width: 26px; height: 26px; color: var(--flame); flex: none; }
.brand small { display: block; font-weight: 400; font-size: 11px; color: var(--fg3); letter-spacing: 0; }
.spacer { margin-left: auto; }

button, .btn {
  font: inherit; font-size: 13px; font-weight: 600;
  padding: 7px 13px; border-radius: 8px;
  border: 1px solid var(--line2); background: var(--panel); color: var(--fg);
  cursor: pointer; white-space: nowrap;
  transition: border-color .15s, transform .15s, background .15s;
}
button:hover, .btn:hover { border-color: var(--flame); transform: translateY(-1px); }
button.primary {
  background: linear-gradient(135deg, var(--flame), var(--flame2));
  border-color: transparent; color: #16130a;
}
button.ghost { background: transparent; }
button.tiny { padding: 3px 8px; font-size: 12px; font-weight: 500; }
button.del { border-color: var(--line); color: var(--fg3); }
button.del:hover { border-color: var(--bad); color: var(--bad); }

/* ---------- bố cục ---------- */
.wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: 14px;
  padding: 14px 16px 40px;
  align-items: start;
}
@media (max-width: 1020px) { .wrap { grid-template-columns: minmax(0, 1fr); } }
/* Không có min-width:0 thì ô lưới không co được dưới bề rộng tối thiểu của
   bảng bên trong, làm cả trang tràn ngang trên điện thoại. */
.wrap > * { min-width: 0; }

/* ---------- tabs ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 12px; }
.tabs button {
  border-color: transparent; background: transparent; color: var(--fg2);
  font-weight: 500;
}
.tabs button.on { background: var(--panel2); color: var(--flame); border-color: var(--line2); }

.pane { display: none; }
.pane.on { display: block; }

/* ---------- khối ---------- */
.card {
  border: 1px solid var(--line); border-radius: var(--r);
  background: var(--panel); padding: 13px; margin-bottom: 12px;
}
.card > h3 {
  font-size: 12px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--flame); margin-bottom: 10px;
}
.note { font-size: 12px; color: var(--fg3); margin-top: 6px; }
.note.warn { color: var(--flame); }

/* ---------- ô nhập ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 9px; }
label.f { display: block; font-size: 11.5px; color: var(--fg2); margin-bottom: 3px; }
input, select {
  font: inherit; font-size: 13px; width: 100%;
  padding: 6px 8px; border-radius: 7px;
  border: 1px solid var(--line2); background: var(--bg2); color: var(--fg);
}
input:focus, select:focus { outline: 2px solid color-mix(in srgb, var(--flame) 55%, transparent); outline-offset: -1px; }
input[type=checkbox] { width: auto; accent-color: var(--flame); }
.chk { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--fg2); }

/* ---------- bảng ---------- */
.tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.tbl th {
  text-align: left; font-size: 11px; font-weight: 600; letter-spacing: .04em;
  color: var(--fg3); padding: 4px 5px; border-bottom: 1px solid var(--line);
  text-transform: uppercase;
}
.tbl td { padding: 3px 4px; }
.tbl input, .tbl select { padding: 5px 6px; font-size: 12.5px; }
.tbl .num input { text-align: right; font-family: var(--mono); }
.scrollx { overflow-x: auto; max-width: 100%; }
.scrollx .tbl { min-width: 620px; }

/* ---------- canvas ---------- */
.viewer { position: sticky; top: 64px; }
@media (max-width: 1020px) { .viewer { position: static; } }
#view {
  width: 100%; height: 520px; display: block;
  border: 1px solid var(--line); border-radius: var(--r); background: var(--bg);
}
@media (max-width: 640px) { #view { height: 380px; } }
.viewbar { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

/* ---------- kết quả ---------- */
.verdict { font-size: 17px; font-weight: 700; }
.verdict.ok { color: var(--weld); }
.verdict.no { color: var(--bad); }
.sub { color: var(--fg2); font-size: 13px; margin-top: 3px; }

.rtbl { width: 100%; border-collapse: collapse; font-size: 12.5px; margin-top: 10px; }
.rtbl th { background: var(--panel2); color: var(--flame); font-size: 11px;
  text-transform: uppercase; letter-spacing: .04em; padding: 6px 7px; text-align: right; }
.rtbl th:first-child { text-align: left; }
.rtbl td { padding: 5px 7px; border-bottom: 1px solid var(--line); text-align: right;
  font-family: var(--mono); }
.rtbl td:first-child { text-align: left; font-family: var(--sans); font-weight: 600; }
.rtbl tr.bad td { color: var(--bad); }

.adv { margin-top: 6px; }
.adv .item { padding: 9px 0; border-bottom: 1px dashed var(--line); }
.adv .t { font-weight: 600; font-size: 13px; }
.adv .b { color: var(--fg2); font-size: 12.5px; margin-top: 3px; }
.adv .lv-hi .t { color: var(--bad); }
.adv .lv-mid .t { color: var(--flame); }
.adv .lv-info .t { color: var(--weld); }

pre.report {
  font-family: var(--mono); font-size: 11.5px; line-height: 1.5;
  white-space: pre; overflow: auto; max-height: 70vh;
  background: var(--bg2); border: 1px solid var(--line);
  border-radius: var(--r); padding: 12px; color: var(--fg2);
}
pre.out {
  font-family: var(--mono); font-size: 12px; white-space: pre-wrap;
  color: var(--fg2); margin-top: 8px;
}

/* ---------- hộp thoại ---------- */
dialog {
  border: 1px solid var(--line2); border-radius: var(--r);
  background: var(--panel); color: var(--fg); padding: 0;
  max-width: min(820px, 94vw); width: 100%;
}
dialog::backdrop { background: rgba(4, 8, 16, .72); }
.dlg-head { display: flex; align-items: center; gap: 10px; padding: 12px 14px;
  border-bottom: 1px solid var(--line); font-weight: 700; }
.dlg-body { padding: 14px; max-height: 66vh; overflow: auto; }

.toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  background: var(--panel2); border: 1px solid var(--line2); color: var(--fg);
  padding: 9px 16px; border-radius: 999px; font-size: 13px;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,.7);
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 90;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }

.badge { display: inline-block; padding: 1px 7px; border-radius: 999px;
  font-family: var(--mono); font-size: 11px; border: 1px solid var(--line2); color: var(--fg2); }
.badge.ok { color: var(--weld); border-color: color-mix(in srgb, var(--weld) 50%, var(--line)); }
.badge.no { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 50%, var(--line)); }

footer { border-top: 1px solid var(--line); padding: 16px; color: var(--fg3); font-size: 12px; }

/* ---------- riêng cho công cụ chiều dày ---------- */
.wrap.one { grid-template-columns: minmax(0, 1fr); max-width: 1200px; margin-inline: auto; }

.eqbox {
  font-family: var(--mono); font-size: 13px; color: var(--fg);
  background: var(--bg2); border: 1px solid var(--line2);
  border-radius: 8px; padding: 10px 12px; margin: 8px 0;
  overflow-x: auto; white-space: pre;
}
.eqbox .ref { display: block; margin-top: 5px; font-size: 11.5px; color: var(--fg3);
  white-space: normal; }

.kpi { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden; margin-top: 10px; }
.kpi > div { background: var(--panel); padding: 10px 12px; }
.kpi .n { font-family: var(--mono); font-size: 18px; font-weight: 700; color: var(--flame); }
.kpi .k { font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--fg3); margin-top: 2px; }

td.pass { color: var(--weld); font-weight: 600; }
td.fail { color: var(--bad); font-weight: 600; }
tr.picked td { background: color-mix(in srgb, var(--weld) 8%, transparent); }

.mat { border: 1px solid var(--line); border-radius: 8px; padding: 10px;
  margin-bottom: 8px; background: var(--panel2); }
.mat .h { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; }
.mat .h b { font-size: 14px; }
.mat .kind { font-size: 11.5px; color: var(--fg3); }
.mat .issue { font-size: 12.5px; margin-top: 5px; padding-left: 14px; position: relative; }
.mat .issue::before { content: '▸'; position: absolute; left: 0; }
.mat .issue.bad { color: var(--bad); }
.mat .issue.warn { color: var(--flame); }
.mat .issue.info { color: var(--fg2); }
.mat .basis { color: var(--fg3); font-size: 11px; }

.srcline { font-size: 11.5px; color: var(--flame); margin-top: 4px; }
.srcline.none { color: var(--bad); }

.banner { border: 1px solid color-mix(in srgb, var(--flame) 45%, var(--line));
  background: color-mix(in srgb, var(--flame) 7%, transparent);
  border-radius: var(--r); padding: 11px 13px; margin-bottom: 12px; font-size: 13px; }
.banner b { color: var(--flame); }

/* ======================= TỜ TÍNH TOÁN ĐỂ IN ======================= */
#sheet { display: none; }

@media print {
  @page { size: A4 portrait; margin: 12mm 10mm 14mm 10mm; }

  header, footer, .tabs, .wrap, .toast, dialog { display: none !important; }
  body { background: #fff !important; color: #000 !important; font-size: 9pt; }

  #sheet {
    display: block;
    font-family: 'Times New Roman', Times, serif;
    color: #000;
    /* chân trang position:fixed nằm trong page box nên sẽ đè lên dòng cuối
       nếu không chừa chỗ */
    padding-bottom: 10mm;
  }

  .sh-tb { width: 100%; border-collapse: collapse; }
  .sh-tb td { border: 1px solid #000; padding: 4pt 6pt; vertical-align: middle; }
  .sh-tb .l, .sh-tb .r { width: 22%; text-align: center; font-size: 8pt; font-weight: 700; }
  .sh-tb .c { text-align: center; }
  .sh-tb .t1 { font-size: 10pt; font-weight: 700; }
  .sh-tb .t2 { font-size: 12pt; font-weight: 700; margin-top: 2pt; }

  .sh-meta { width: 100%; border-collapse: collapse; margin-top: 4pt; font-size: 8.5pt; }
  .sh-meta td { border: 1px solid #000; padding: 3pt 6pt; }

  .sh-h { font-size: 10pt; font-weight: 700; margin: 9pt 0 3pt; }

  .sh-kv { border-collapse: collapse; font-size: 9pt; }
  .sh-kv .k { width: 90pt; }
  .sh-kv td { padding: 1pt 0; }

  .sh-eq {
    border: 1px solid #000; padding: 5pt 8pt; margin: 4pt 0 6pt;
    font-family: 'Cambria Math', 'Times New Roman', serif; font-size: 10pt;
  }
  .sh-eq .ref { font-size: 8pt; font-style: italic; margin-top: 3pt; }

  .sh-alert {
    border: 1.5pt solid #000; padding: 5pt 8pt; margin: 5pt 0;
    font-weight: 700; font-size: 9.5pt; text-align: center;
  }

  .sh-par { width: 100%; border-collapse: collapse; font-size: 9pt; }
  .sh-par td { padding: 1.5pt 3pt; vertical-align: top; }
  .sh-par .sym { width: 28pt; font-weight: 700; }
  .sh-par .dsc { }
  .sh-par .dsc.sub { font-size: 8pt; font-style: italic; padding-left: 0; }
  .sh-par .val { width: 62pt; text-align: right; font-weight: 700; }
  .sh-par .unt { width: 34pt; padding-left: 5pt; }

  .sh-res { width: 100%; border-collapse: collapse; font-size: 8.5pt; margin-top: 3pt; }
  .sh-res th, .sh-res td { border: 1px solid #000; padding: 2.5pt 3pt; text-align: center; }
  .sh-res th { font-weight: 700; }
  .sh-res td.hi { background: #e8e8e8; font-weight: 700; }
  .sh-res td.ok { font-weight: 700; }
  .sh-res td.no { font-weight: 700; text-decoration: underline; }
  .sh-res thead { display: table-header-group; }
  .sh-res tr { break-inside: avoid; }

  .sh-note { font-size: 8pt; font-style: italic; margin-top: 4pt; }

  .sh-w { font-size: 8.5pt; margin: 3pt 0 0 14pt; }
  .sh-w li { margin-bottom: 3pt; break-inside: avoid; }
  .sh-w li.bad { font-weight: 700; }
  .sh-w .bs { font-size: 7.5pt; font-style: italic; }

  .sh-lim { font-size: 8pt; margin: 3pt 0 0 14pt; }
  .sh-lim li { margin-bottom: 2pt; }

  .sh-foot {
    position: fixed; bottom: 0; left: 0; right: 0;
    display: flex; justify-content: space-between;
    border-top: 1px solid #000; padding-top: 2pt;
    font-size: 8pt;
  }
}

button:disabled, button:disabled:hover {
  opacity: .45; cursor: not-allowed; transform: none;
  border-color: var(--line); background: var(--panel); color: var(--fg3);
}
.locked { opacity: .45; pointer-events: none; filter: grayscale(.5); }
.needcode {
  border: 1px dashed color-mix(in srgb, var(--flame) 55%, var(--line));
  border-radius: 8px; padding: 9px 11px; margin-bottom: 10px;
  font-size: 13px; color: var(--flame);
}