/* Local article preview. Shared system is provided by tasarim.css. */
.art-main { max-width: 1184px; margin: 0 auto; padding: 0 32px 92px; }
.art-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 29px 0; color: var(--muted); font: 14px/1.4 var(--sans); }
.art-breadcrumb a { color: var(--muted); text-decoration: none; }
.art-breadcrumb a:hover { color: var(--petrol); text-decoration: underline; text-underline-offset: 4px; }
.art-breadcrumb > span[aria-hidden] { color: var(--bronze); }
.art-hero { border-bottom: 1px solid var(--line); padding: 28px 0 31px; }
.art-kicker { display: flex; align-items: center; gap: 10px; margin: 0 0 24px; color: var(--petrol); font: 600 12px/1.4 var(--sans); letter-spacing: .14em; }
.art-kicker > span { display: block; width: 25px; height: 1px; background: var(--bronze); }
.art-hero h1 { max-width: 930px; margin: 0; font: 500 clamp(40px, 4.2vw, 60px)/1.1 var(--serif); letter-spacing: -.035em; color: var(--ink); overflow-wrap: break-word; text-wrap: balance; }
.art-hero h1 em { color: var(--petrol); font-weight: 400; }
.art-deck { max-width: 700px; margin: 24px 0 26px; color: var(--muted); font: 21px/1.55 var(--sans); }
.art-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; color: var(--muted); font: 14px/1.5 var(--sans); }
.art-original { margin-left: auto; display: inline-flex; gap: 16px; align-items: center; min-height: 36px; color: var(--petrol); text-decoration: none; border-bottom: 1px solid var(--line); }
.art-original:hover { border-bottom-color: var(--petrol); }
.art-layout { display: grid; grid-template-columns: 210px minmax(0, 650px); gap: clamp(40px, 6.7vw, 96px); padding-top: 51px; }
.art-sidebar { align-self: start; position: sticky; top: 30px; }
.art-toc { border-top: 2px solid var(--petrol); }
.art-toc summary { padding: 18px 0 16px; font: 600 15px/1.4 var(--sans); color: var(--ink); list-style: none; }
.art-toc summary::-webkit-details-marker { display: none; }
.art-toc-arrow { display: none; }
.art-toc nav { margin: 0; }
.art-toc ol { list-style: none; margin: 0; padding: 0; }
.art-toc li { border-bottom: 1px solid var(--line); margin: 0; }
.art-toc li a { display: flex; align-items: baseline; gap: 13px; padding: 13px 0; font: 15px/1.45 var(--sans); color: var(--muted); text-decoration: none; }
.art-toc li a span { color: var(--bronze); font-size: 12px; font-variant-numeric: tabular-nums; }
.art-toc li a:hover, .art-toc li a:focus-visible { color: var(--petrol); }
.art-sidebar-note { max-width: 180px; margin: 21px 0 0; font: 13px/1.65 var(--sans); color: var(--muted); }
.art-prose { min-width: 0; color: var(--ink); font: 19px/1.75 var(--sans); }
.art-prose p { margin: 0 0 22px; }
.art-prose .art-intro { font: 24px/1.5 var(--serif); letter-spacing: -.012em; color: var(--petrol); margin: -4px 0 45px; padding-bottom: 34px; border-bottom: 1px solid var(--line); }
.art-section { margin-top: 46px; scroll-margin-top: 36px; }
.art-section .art-section-number { margin: 0 0 13px; color: var(--bronze); font: 600 11px/1.5 var(--sans); letter-spacing: .12em; }
.art-section h2 { margin: 0 0 19px; color: var(--ink); font: 500 clamp(29px, 2.7vw, 35px)/1.2 var(--serif); letter-spacing: -.025em; text-wrap: balance; }
.art-concept { border: 1px solid var(--line); border-left: 3px solid var(--petrol); background: var(--white); margin: 28px 0 8px; padding: 25px 28px 9px; }
.art-concept .art-concept-label { margin: 0 0 16px; font: 600 10px/1.5 var(--sans); letter-spacing: .12em; color: var(--muted); }
.art-concept dl { margin: 0; }
.art-concept dl > div { display: grid; grid-template-columns: 88px 1fr; gap: 17px; padding: 15px 0; border-top: 1px solid var(--line); }
.art-concept dt { color: var(--petrol); font: 600 20px/1.4 var(--serif); }
.art-concept dd { margin: 0; color: var(--muted); font: 17px/1.65 var(--sans); }
.art-rights { display: grid; grid-template-columns: 1fr 1fr; gap: 0 25px; list-style: none; padding: 0; margin: 26px 0 0; }
.art-rights li { position: relative; margin: 0; padding: 13px 0 13px 20px; border-top: 1px solid var(--line); font: 16px/1.5 var(--sans); color: var(--petrol); }
.art-rights li::before { content: ''; position: absolute; top: 23px; left: 1px; width: 4px; height: 4px; background: var(--bronze); border-radius: 50%; }
.art-source { background: #eaf0eb; margin: 52px 0 26px; padding: 31px 32px 30px; scroll-margin-top: 36px; }
.art-source .art-source-label { margin: 0 0 13px; color: var(--petrol); font: 600 11px/1.5 var(--sans); letter-spacing: .13em; }
.art-source h2 { margin: 0 0 13px; font: 500 29px/1.25 var(--serif); color: var(--petrol); letter-spacing: -.02em; }
.art-source p { font: 16px/1.65 var(--sans); margin-bottom: 22px; color: var(--muted); }
.art-source a { display: inline-flex; align-items: center; gap: 23px; min-height: 44px; border-bottom: 1px solid var(--petrol); text-decoration: none; font: 600 16px/1.4 var(--sans); color: var(--petrol); }
.art-source a:hover { background: #dce7de; }
.art-back-top { display: flex; justify-content: space-between; min-height: 44px; padding: 10px 0; font: 14px/1.5 var(--sans); text-decoration: none; color: var(--muted); }
.art-back-top:hover { color: var(--petrol); }
.art-main a:focus-visible, .art-toc summary:focus-visible { outline: 2px solid var(--petrol); outline-offset: 5px; }
@media (min-width: 900px) { .art-toc summary { pointer-events: none; } }
@media (max-width: 899px) {
  .art-main { padding: 0 28px 64px; }
  .art-hero h1 { max-width: 800px; font-size: clamp(38px, 6vw, 54px); }
  .art-deck { max-width: 640px; font-size: 20px; }
  .art-layout { grid-template-columns: minmax(0, 1fr); gap: 35px; padding-top: 31px; }
  .art-sidebar { position: static; max-width: 650px; width: 100%; margin: auto; }
  .art-toc { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .art-toc summary { display: flex; justify-content: space-between; align-items: center; cursor: pointer; min-height: 52px; padding: 16px 0; }
  .art-toc-arrow { display: inline; font-size: 23px; line-height: .6; }
  .art-toc[open] .art-toc-arrow { transform: rotate(180deg); }
  .art-toc li:last-child { border-bottom: 0; }
  .art-toc li a { padding: 13px 0; min-height: 46px; }
  .art-sidebar-note { display: none; }
  .art-prose { max-width: 650px; margin: auto; }
  .art-prose .art-intro { margin-top: 0; }
}
@media (max-width: 540px) {
  .art-main { padding: 0 20px 48px; }
  .art-breadcrumb { font-size: 12px; gap: 7px; padding: 21px 0; }
  .art-hero { padding: 18px 0 23px; }
  .art-kicker { font-size: 10px; margin-bottom: 20px; }
  .art-hero h1 { font-size: clamp(34px, 9vw, 44px); line-height: 1.12; letter-spacing: -.03em; }
  .art-deck { font-size: 18px; line-height: 1.6; margin: 21px 0; }
  .art-meta { font-size: 13px; gap: 8px; }
  .art-original { margin: 9px 0 0; flex-basis: 100%; justify-content: space-between; min-height: 44px; border-top: 1px solid var(--line); border-bottom: 0; padding-top: 11px; }
  .art-layout { padding-top: 24px; gap: 28px; }
  .art-prose { font-size: 18px; line-height: 1.75; }
  .art-prose .art-intro { font-size: 23px; margin-bottom: 32px; padding-bottom: 28px; }
  .art-section { margin-top: 35px; }
  .art-section h2 { font-size: 30px; }
  .art-concept { padding: 20px 20px 4px; margin-top: 24px; }
  .art-concept dl > div { display: block; padding: 16px 0; }
  .art-concept dt { margin-bottom: 6px; }
  .art-concept dd { font-size: 16px; }
  .art-rights { grid-template-columns: 1fr; margin-top: 22px; }
  .art-source { padding: 26px 23px; margin-top: 38px; }
  .art-source h2 { font-size: 27px; }
  .art-source a { font-size: 15px; gap: 16px; }
}
@media (prefers-reduced-motion: reduce) { .art-main * { scroll-behavior: auto; transition: none; } }
@media print {
  .art-sidebar, .art-back-top, .art-original { display: none; }
  .art-main { max-width: none; padding: 0; }
  .art-layout { display: block; padding-top: 20px; }
  .art-prose { max-width: none; font-size: 12pt; }
  .art-hero h1 { font-size: 30pt; }
  .art-section, .art-concept, .art-source { break-inside: avoid; }
}