/* Countersink-specific components. Shared calculator chrome, fields, tables,
   and section spacing come from material-size-limits.css. */
.countersink-page { --bg:#fff; --surface:#fff; --white:#fff; --card:#fff; --card-hover:#f3f4f5; --border:#d9dde1; --border-md:#a8adb3; --accent-br:#9cacae; --red:#a33b29; background:#fff; }
/* Match the homepage's 24px dot field, fading it behind the section edges. */
.countersink-page .size-hero,.countersink-page .detail-section { position:relative; isolation:isolate; }
.countersink-page .size-hero::before,.countersink-page .detail-section::before {
  content:''; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:radial-gradient(rgba(20,26,34,.12) 1.2px,transparent 1.2px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 50% 42%,#000 25%,transparent 78%);
  mask-image:radial-gradient(ellipse 78% 62% at 50% 42%,#000 25%,transparent 78%);
}
.countersink-page .conv-card,.countersink-page .conv-field input,.countersink-page .conv-field select,
.countersink-page .conv-field option,.countersink-page .conv-field optgroup,.countersink-page .rel-card { background:#fff; }
.countersink-page .gc-seg button.on { color:#fff; }
.countersink-page .size-hero h1 { font-size:clamp(56px,6.7vw,104px); }
.countersink-page .size-hero-title { grid-template-columns:1.15fr 1fr; gap:6vw; }
.countersink-page .size-index { letter-spacing:0; background:#fffffff5; scrollbar-color:#a8adb3 #fff; }
.countersink-page .size-index a { text-transform:none; opacity:1; }
.countersink-page .detail-section { border-top:1px solid var(--border); }
.countersink-page .detail-section>.section-title { margin-bottom:25px; }
.countersink-page .detail-section>.section-sub { max-width:1060px; margin-bottom:38px; }
.countersink-page .section-eyebrow::before { display:none; }
.countersink-page .section-eyebrow { font-weight:400; }
.countersink-page .size-checker>* { min-width:0; }
.countersink-page .cs-geometry-link { margin-top:26px; max-width:300px; }

/* Open statistics, square input controls, and a white drawing panel. */
.countersink-page .hero-stats { max-width:none; border-inline:0; gap:0; background:transparent; }
.countersink-page .hero-stat { background:transparent; }
.countersink-page .hero-stat-num { font-family:Inter,sans-serif; font-weight:400; color:var(--text); }
.countersink-page .hero-stat-label { line-height:1.6; }
.countersink-page .conv-card { border-radius:0; box-shadow:none; overflow:hidden; }
.countersink-page .conv-head { background:transparent; }
.countersink-page .conv-head-title { font-weight:400; }
.countersink-page .conv-field label { font:400 12px/1.5 Inter,sans-serif; letter-spacing:0; text-transform:none; }
.countersink-page .conv-field select { font-weight:400; }
.countersink-page .cs-stage { --cs-diagram-bg:#fff; background:#fff; border:0; padding:20px; margin-bottom:26px; }
.countersink-page .cs-stage svg { max-width:390px; }
.countersink-page .cs-toggles { gap:18px; margin-bottom:22px; }
.countersink-page .cs-tog-lab { display:block; font:400 12px/1.5 Inter,sans-serif; color:var(--muted); letter-spacing:0; text-transform:none; margin-bottom:8px; }
.countersink-page .cs-tog { gap:6px; background:transparent; border:0; }
.countersink-page .cs-tog button { min-height:44px; padding:10px; border:1px solid var(--border-md); border-radius:0; background:transparent; color:var(--text); font:400 12px/1.4 Inter,sans-serif; letter-spacing:0; text-transform:none; }
.countersink-page .cs-tog button.on { background:#20201e; border-color:#20201e; color:#fff; }
.countersink-page .cs-tog button:hover { border-color:var(--text); }
.countersink-page .conv-out { border:0; background:transparent; }
.countersink-page .conv-out-main { padding:22px 0 26px; }
.countersink-page .conv-out-label { font:400 11px/1.6 'Share Tech Mono',monospace; color:var(--muted); letter-spacing:.08em; }
.countersink-page .conv-out-big { font-family:Inter,sans-serif; font-weight:400; font-size:clamp(36px,4vw,58px); color:var(--text); }
.countersink-page .conv-out-alt { font:400 14px/1.6 Inter,sans-serif; color:var(--muted); }
.countersink-page .conv-out-rows { gap:0; background:transparent; }
.countersink-page .conv-out-cell { min-width:0; padding:18px 12px 18px 0; background:transparent; border-bottom:1px solid var(--border); }
.countersink-page .conv-out-cell:nth-child(even) { padding-left:15px; }
.countersink-page .conv-out-cell-k { font:400 10px/1.6 'Share Tech Mono',monospace; color:var(--dim); }
.countersink-page .conv-out-cell-v { font:400 19px/1.4 Inter,sans-serif; letter-spacing:-.025em; margin-top:7px; }
.countersink-page .conv-out-cell-v small { display:block; font-size:12px; margin-top:5px; }
.countersink-page .conv-stock { display:block; padding:20px 0 0; font-size:13px; line-height:1.8; }

/* Table filters and locally scrolling comparison table. */
.countersink-page .gc-toolbar { position:static; gap:16px 20px; padding:22px 0; background:transparent; border:0; border-top:1px solid var(--border); border-radius:0; }
.countersink-page .gc-tool-label { font:400 12px/1.5 Inter,sans-serif; letter-spacing:0; text-transform:none; }
.countersink-page .gc-seg { background:transparent; border:0; gap:7px; }
.countersink-page .gc-seg button,.countersink-page .gc-ghost-btn { font:400 12px/1.5 Inter,sans-serif; letter-spacing:0; text-transform:none; }
.countersink-page .gc-ghost-btn:hover { background:#f3f4f5; color:var(--text); border-color:var(--text); }
.countersink-page .cs-chart-thickness { min-width:180px; }
.countersink-page .gc-check { font:400 12px/1.5 Inter,sans-serif; letter-spacing:0; text-transform:none; }
.countersink-page .gc-check input { position:static; opacity:1; pointer-events:auto; flex-shrink:0; }
.countersink-page .gc-count { letter-spacing:0; }
.countersink-page .gc-wrap { border-radius:0; background:var(--surface); }
.countersink-page .gc-table { min-width:1120px; border-collapse:separate; border-spacing:0; font-variant-numeric:tabular-nums; }
.countersink-page .gc-table th { top:0; z-index:2; padding:18px 20px; background:#fff; color:var(--text); }
.countersink-page .gc-th-name { font:500 12px/1.5 Inter,sans-serif; letter-spacing:0; text-transform:none; color:var(--text); }
.countersink-page .gc-th-std { font:400 10px/1.5 Inter,sans-serif; letter-spacing:0; color:var(--dim); }
.countersink-page .gc-table td { --cs-diagram-bg:#fff; padding:20px; background:var(--surface); }
.countersink-page .gc-table .gc-row:nth-of-type(even)>td { --cs-diagram-bg:#fff; background:#fff; }
.countersink-page .gc-table .gc-row:hover>td,.countersink-page .gc-table .gc-row.open>td { --cs-diagram-bg:#f3f4f5; background:#f3f4f5; }
.countersink-page .gc-table .cs-screw { position:sticky; left:0; z-index:3; min-width:150px; border-right:1px solid var(--border); box-shadow:none; }
.countersink-page .gc-table th.cs-screw { z-index:4; background:#fff; }
.countersink-page .cs-screw-name { font:500 16px/1.5 Inter,sans-serif; }
.countersink-page .cs-std { display:block; font:400 10px/1.6 'IBM Plex Mono',monospace; max-width:160px; }
.countersink-page .cs-ang-badge { font:400 10px/1.5 'Share Tech Mono',monospace; color:var(--muted); border:1px solid var(--border-md); background:transparent; }
.countersink-page .gc-in,.countersink-page .cs-min-v { display:block; font:400 14px/1.6 'IBM Plex Mono',monospace; white-space:nowrap; color:var(--text); }
.countersink-page .gc-mm { display:block; font:400 12px/1.6 'IBM Plex Mono',monospace; color:var(--muted); }
.countersink-page .gc-table .cs-min { box-shadow:none; }
.countersink-page .vd { font:400 11px/1.5 'Share Tech Mono',monospace; text-transform:none; letter-spacing:0; white-space:normal; border-radius:0; }
.countersink-page .vd-note { font:400 11px/1.7 Inter,sans-serif; }
.countersink-page .vd-route { font:400 10px/1.5 'Share Tech Mono',monospace; text-transform:none; letter-spacing:0; }
.countersink-page .chart-caption { caption-side:bottom; padding:16px 20px; background:var(--bg); color:var(--muted); text-align:left; font:400 12px/1.7 Inter,sans-serif; }
.countersink-page .gc-detail { gap:1px; }
.countersink-page .gc-dpanel { --cs-diagram-bg:#fff; border-radius:0; padding:24px; }
.countersink-page .gc-dpanel-name { font-size:17px; font-weight:400; letter-spacing:-.025em; }
.countersink-page .gc-dspec-k { font:400 10px/1.7 'Share Tech Mono',monospace; }
.countersink-page .gc-dspec-v { font-size:12px!important; line-height:1.6; overflow-wrap:anywhere; }
.countersink-page .gc-dsku-name,.countersink-page .gc-dnone { font-size:12px; line-height:1.7; }
.countersink-page .cs-empty { padding:32px!important; font-size:14px; color:var(--muted); text-align:center; }

/* Carry the same white surfaces, rules, and typography through the reference sections. */
.countersink-page main svg [fill="#F6F7F9"],.countersink-page main svg [fill="#ffffff"] { fill:var(--cs-diagram-bg,var(--surface)); }
.countersink-page .callout { background:transparent; border:0; border-top:1px solid var(--border); }
.countersink-page .callout-icon { background:transparent; color:var(--muted); width:auto; height:auto; justify-content:flex-start; align-items:flex-start; }
.countersink-page .mx-shell { border-color:var(--border-md); }
.countersink-page .mx-legend { background:transparent; }
.countersink-page .mx-leg { font-size:11px; line-height:1.6; }
.countersink-page .mx-scroll { overflow-x:auto; }
.countersink-page .mx-note,.countersink-page .ac-note { font:400 14px/1.8 Inter,sans-serif; }
.countersink-page .ac-card { border:0; border-top:2px solid var(--border-md); background:transparent; padding:26px 0 0; }
.countersink-page .ac-title { font:400 30px/1.15 Inter,sans-serif; letter-spacing:-.04em; }
.countersink-page .ac-svg { --cs-diagram-bg:#fff; background:#fff; }
.countersink-page .cl-item { background:transparent; border:0; border-top:1px solid var(--border); padding:26px 0; }
.countersink-page .cl-num { background:transparent; color:var(--dim); }
.countersink-page .cl-title { font-size:22px; font-weight:400; letter-spacing:-.025em; }
.countersink-page .cl-copy { font-size:14px; line-height:1.8; }
.countersink-page .faq-item[open] summary { background:transparent; }

@media(max-width:1100px) {
  .countersink-page .cs-toggles { grid-template-columns:1fr; }
  .countersink-page .gc-detail { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media(max-width:760px) {
  .countersink-page .size-hero-title { grid-template-columns:1fr; gap:35px; }
  .countersink-page .size-hero h1 { font-size:clamp(44px,10.8vw,78px); }
  .countersink-page .cs-toggles { grid-template-columns:1fr 1fr; gap:12px; }
  .countersink-page .gc-toolbar { gap:12px; }
  .countersink-page .gc-tool-label { width:100%; }
  .countersink-page .cs-chart-thickness { width:100%; }
  .countersink-page .gc-seg { flex-wrap:wrap; }
  .countersink-page .gc-table .cs-screw { min-width:130px; }
  .countersink-page .ac-grid { grid-template-columns:1fr; }
}
@media(max-width:420px) {
  .countersink-page .cs-toggles,.countersink-page .conv-row { grid-template-columns:1fr; }
  .countersink-page .cs-stage { padding:8px; }
  .countersink-page .hero-stat-num { font-size:25px; }
}
@media print {
  .countersink-page .size-hero::before,.countersink-page .detail-section::before { display:none; }
  .countersink-page .size-index,.countersink-page #lookup,.countersink-page .size-ending { display:none!important; }
  .countersink-page .gc-wrap { max-height:none; overflow:visible; }
  .countersink-page .gc-table { min-width:0; }
  .countersink-page .gc-table th,.countersink-page .gc-table td { padding:6px; }
  .countersink-page .gc-table .cs-screw { position:static; min-width:0; }
}