/* Technical information follows the same precision-grid visual system. */
.technical-content { border-bottom: 1px solid var(--line); }
.tc-heading { max-width: 800px; margin-bottom: 35px; }
.tc-eyebrow { display: flex; align-items: center; gap: 12px; color: var(--accent); font: 500 10px/1.7 var(--mono); letter-spacing: 1.2px; margin-bottom: 20px; }
.tc-eyebrow::before { content: ''; width: 22px; height: 2px; background: currentColor; }
.tc-heading > p:last-child, .tc-subheading > p { color: var(--muted); font-size: 14px; line-height: 1.9; margin-bottom: 0; }
.tc-limits { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 0; }
.tc-limit { position: relative; min-width: 0; border: 1px solid var(--line); border-top: 2px solid var(--graphite); background: #f0f0ee; padding: 27px; }
.tc-limit-index { position: absolute; top: 25px; right: 23px; color: #969696; font: 8px/1.7 var(--mono); }
.tc-limit dt { font-size: 12px; line-height: 1.7; padding-right: 30px; margin-bottom: 18px; }
.tc-limit dd { color: var(--accent); font: 500 21px/1.6 var(--mono); margin: 0; overflow-wrap: anywhere; }
.tc-subsection { margin-top: 60px; min-width: 0; }
.tc-subheading { margin-bottom: 27px; }
.tc-subheading h2 { font-size: 32px; margin-bottom: 14px; }
.tc-hole-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 25px; }
.tc-hole-card { padding: 30px; border: 1px solid var(--line); min-width: 0; }
.tc-hole-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-bottom: 23px; border-bottom: 1px solid var(--line); }
.tc-hole-heading h3 { font-size: 25px; margin: 0; }
.tc-hole-heading > span { padding: 7px 11px; border: 1px solid #d8d8d4; background: #f1f1ee; color: var(--accent); font: 9px/1.6 var(--mono); }
.tc-hole-conditions { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 16px; }
.tc-hole-conditions > li { display: flex; align-items: center; gap: 15px; color: #555; font: 12px/1.7 var(--mono); }
.tc-hole-conditions > li::before { content: '/'; color: var(--accent); font: 10px/1.7 var(--mono); }
.tc-notation { color: #858585; font-size: 11px; line-height: 1.9; margin: 21px 0 0; }
.tc-grade-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 25px; margin-bottom: 30px; }
.tc-grade { border-top: 1px solid #bdbdb9; padding: 25px 20px 0 0; }
.tc-grade h3 { color: var(--accent); font: 500 26px/1.3 var(--mono); margin-bottom: 18px; }
.tc-grade p { color: var(--muted); font-size: 12px; line-height: 1.9; margin-bottom: 0; }
.tc-tolerance-details { border: 1px solid #cdcdc7; min-width: 0; }
.tc-tolerance-details > summary { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 26px 30px; cursor: pointer; list-style: none; background: #edede9; }
.tc-tolerance-details > summary::-webkit-details-marker { display: none; }
.tc-tolerance-details > summary:hover { background: #e5e5e1; }
.tc-tolerance-details > summary strong { display: block; color: var(--graphite); font-size: 18px; font-weight: 500; line-height: 1.5; }
.tc-tolerance-details > summary small { display: block; font: 9px/1.7 var(--mono); color: #808080; margin-top: 9px; }
.tc-details-toggle { position: relative; flex: 0 0 32px; width: 32px; height: 32px; border: 1px solid var(--accent); color: var(--accent); }
.tc-details-toggle::before, .tc-details-toggle::after { content: ''; position: absolute; width: 11px; height: 1px; background: currentColor; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.tc-details-toggle::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s; }
.tc-tolerance-details[open] .tc-details-toggle::after { transform: translate(-50%, -50%); }
.tc-table-content { padding: 27px 30px 30px; min-width: 0; }
.tc-table-intro { font-size: 12px; line-height: 1.9; color: #808080; margin-bottom: 22px; }
.tc-table-scroll { max-width: 100%; overflow-x: auto; scrollbar-width: thin; scrollbar-color: #aaa transparent; }
.tc-tolerance-table { border-collapse: collapse; width: 100%; min-width: 540px; font: 11px/1.7 var(--mono); text-align: left; }
.tc-tolerance-table caption { text-align: left; font: 10px/1.7 var(--mono); color: #808080; padding-bottom: 15px; }
.tc-tolerance-table th, .tc-tolerance-table td { border: 1px solid #d7d7d2; padding: 13px 18px; }
.tc-tolerance-table thead th { background: var(--graphite); color: #eee; font-weight: 400; border-color: #505050; }
.tc-tolerance-table tbody th { font-weight: 400; color: #515151; background: #efefeb; }
.tc-tolerance-table tbody tr:nth-child(even) td { background: #f1f1ed; }
.tc-tolerance-table tbody tr:hover td, .tc-tolerance-table tbody tr:hover th { background: #e6e6df; }
.tc-drawing-note { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: start; gap: 18px; border-top: 1px solid var(--line); padding-top: 27px; margin-top: 32px; }
.tc-note-mark { display: grid; place-items: center; border: 1px solid #b8b8b2; width: 23px; height: 23px; color: var(--accent); font: 12px/1.5 var(--mono); margin-top: 3px; }
.tc-drawing-note p { color: #7a7a7a; font-size: 12px; line-height: 1.9; margin-bottom: 0; }
.tc-drawing-note p > strong { color: var(--graphite); font-weight: 500; }
.tc-drawing-note > a { display: inline-flex; align-items: center; gap: 16px; color: var(--accent); font-size: 11px; font-weight: 500; line-height: 1.8; padding-top: 3px; white-space: nowrap; }
.tc-drawing-note > a:hover { text-decoration: underline; }
.tc-drawing-note > a > span { font-size: 16px; }
@media (max-width: 1080px) {
  .tc-limits { gap: 16px; }
  .tc-limit { padding: 25px 22px; }
  .tc-limit-index { right: 18px; }
  .tc-limit dd { font-size: 18px; }
  .tc-hole-card { padding: 25px; }
  .tc-hole-heading { gap: 15px; }
  .tc-hole-heading h3 { font-size: 23px; }
  .tc-hole-heading > span { font-size: 8px; }
  .tc-hole-conditions > li { font-size: 11px; }
  .tc-drawing-note { grid-template-columns: auto minmax(0, 1fr); }
  .tc-drawing-note > a { grid-column: 2; }
}
@media (max-width: 700px) {
  .tc-heading { margin-bottom: 28px; }
  .tc-heading h2 { font-size: 31px; }
  .tc-eyebrow { font-size: 8px; margin-bottom: 18px; gap: 10px; }
  .tc-eyebrow::before { width: 17px; }
  .tc-heading > p:last-child, .tc-subheading > p { font-size: 12px; line-height: 1.9; }
  .tc-limits { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
  .tc-limit { padding: 24px 17px; }
  .tc-limit-index { font-size: 6px; top: 21px; right: 14px; }
  .tc-limit dt { font-size: 10px; margin-bottom: 15px; padding-right: 17px; }
  .tc-limit dd { font-size: 14px; line-height: 1.7; }
  .tc-subsection { margin-top: 42px; }
  .tc-subheading { margin-bottom: 24px; }
  .tc-subheading h2 { font-size: 29px; line-height: 1.15; margin-bottom: 15px; }
  .tc-hole-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .tc-hole-card { padding: 25px 22px; }
  .tc-hole-heading { padding-bottom: 20px; gap: 15px; }
  .tc-hole-heading h3 { font-size: 23px; }
  .tc-hole-heading > span { font-size: 7px; padding: 6px 9px; }
  .tc-hole-conditions { margin-top: 21px; gap: 14px; }
  .tc-hole-conditions > li { font-size: 11px; gap: 12px; }
  .tc-notation { font-size: 10px; line-height: 1.9; margin-top: 18px; }
  .tc-grade-grid { grid-template-columns: minmax(0, 1fr); gap: 23px; margin-bottom: 28px; }
  .tc-grade { padding-top: 23px; padding-right: 0; display: grid; grid-template-columns: 50px minmax(0, 1fr); gap: 18px; }
  .tc-grade h3 { font-size: 24px; margin: 0; }
  .tc-grade p { font-size: 12px; }
  .tc-tolerance-details > summary { padding: 22px 19px; gap: 15px; }
  .tc-tolerance-details > summary strong { font-size: 16px; line-height: 1.5; }
  .tc-tolerance-details > summary small { font-size: 7px; line-height: 1.8; margin-top: 10px; }
  .tc-details-toggle { width: 28px; height: 28px; flex-basis: 28px; }
  .tc-table-content { padding: 22px 18px; }
  .tc-table-intro { font-size: 10px; line-height: 1.9; }
  .tc-tolerance-table { font-size: 10px; min-width: 490px; }
  .tc-tolerance-table caption { font-size: 8px; }
  .tc-tolerance-table th, .tc-tolerance-table td { padding: 12px 15px; }
  .tc-drawing-note { gap: 13px; margin-top: 25px; padding-top: 23px; }
  .tc-note-mark { width: 20px; height: 20px; font-size: 10px; }
  .tc-drawing-note p { font-size: 11px; line-height: 1.9; }
  .tc-drawing-note > a { font-size: 10px; gap: 14px; }
}
@media (max-width: 360px) {
  .tc-limits { gap: 12px; }
  .tc-limit { padding: 23px 14px; }
  .tc-limit dt { font-size: 9px; }
  .tc-limit dd { font-size: 12px; }
  .tc-hole-card { padding: 24px 19px; }
  .tc-hole-heading h3 { font-size: 21px; }
  .tc-hole-heading > span { font-size: 6px; }
  .tc-grade { grid-template-columns: 40px minmax(0, 1fr); gap: 15px; }
}