/* Helle Klarheit: readable product pages, built from the same public shell. */
.feature-detail .detail-main { padding-top: 20px; }
.detail-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 13px; }
.detail-breadcrumb a, .detail-breadcrumb [aria-current] { display: inline-flex; align-items: center; min-height: 44px; }
.detail-breadcrumb a:hover, .detail-breadcrumb [aria-current] { color: var(--ink); }
.detail-breadcrumb a { text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 4px; }
.detail-breadcrumb a:hover { text-decoration-color: currentColor; }
.detail-hero { display: grid; grid-template-columns: minmax(0,1.12fr) minmax(0,.88fr); gap: clamp(40px,6vw,90px); align-items: start; padding: 45px 0 58px; }
.detail-hero h1 { margin: 0; font-size: clamp(38px,4.4vw,64px); line-height: 1.08; letter-spacing: -.035em; font-weight: 600; text-wrap: balance; }
.detail-lead { color: var(--muted); font-size: 18px; line-height: 1.7; max-width: 45ch; }
.feature-detail #landing .detail-intro .hero-actions { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: 8px 22px; margin-top: 23px; }
.detail-text-link { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--accent); font-size: 14px; font-weight: 500; }
.detail-text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.detail-arrow { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.feature-detail h1, .feature-detail h2, .feature-detail h3 { text-wrap: balance; }
.feature-detail a { text-underline-offset: 4px; }

/* Each illustration explains the particular capability, with real product boundaries. */
.detail-visual { margin: 0 0 72px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); overflow: hidden; }
.detail-visual figcaption { display: flex; align-items: baseline; gap: 22px; padding: 20px 28px; border-bottom: 1px solid var(--line); font-size: 13px; line-height: 1.6; color: var(--muted); }
.detail-visual figcaption > span { color: var(--ink); font-weight: 600; }
.detail-visual figcaption p { margin: 0; max-width: 80ch; }
.detail-flow-note { padding: 18px 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; line-height: 1.6; background: var(--bg); }
.diagram-type { display: block; color: var(--muted); font-size: 13px; line-height: 1.5; }
.diagram-version { display: inline-block; color: var(--muted); font-size: 13px; margin-top: 22px; font-variant-numeric: tabular-nums; }
.knowledge-route { display: grid; grid-template-columns: minmax(130px,1fr) 68px minmax(240px,1.5fr) 68px minmax(130px,1fr); gap: 12px; align-items: center; padding: 42px 36px; }
.route-end { text-align: center; }
.route-agent { display: block; color: var(--accent); font-weight: 600; font-size: 14px; margin-bottom: 15px; }
.route-end strong { display: block; font-size: 18px; line-height: 1.4; }
.route-end p { color: var(--muted); font-size: 14px; line-height: 1.6; margin-top: 9px; }
.route-connector { display: flex; align-items: center; flex-direction: column; gap: 8px; color: var(--accent); font-size: 12px; }
.route-connector .detail-arrow { width: 50px; height: 24px; }
.knowledge-note { background: var(--bg); padding: 24px; border: 1px solid var(--line); border-radius: 12px; }
.knowledge-note-heading { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.knowledge-note-heading svg { width: 22px; height: 22px; color: var(--accent); stroke: currentColor; }
.note-kind { color: var(--muted); font-size: 12px; margin-top: 26px; }
.knowledge-note blockquote { margin: 8px 0 26px; font-size: 23px; font-weight: 500; line-height: 1.3; letter-spacing: -.025em; }
.note-origin { padding-top: 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.6; }
.assignment-diagram { display: grid; grid-template-columns: 1fr 100px 1fr; padding: 40px 60px; align-items: center; }
.rule-source { padding-right: 28px; }
.rule-source h2 { margin: 16px 0; font-size: 25px; line-height: 1.3; letter-spacing: -.025em; }
.rule-source ul { padding: 0 0 0 19px; font-size: 16px; line-height: 1.9; color: var(--muted); }
.assignment-branch { display: flex; justify-content: center; color: var(--accent); }
.assignment-branch .detail-arrow { width: 42px; height: 42px; }
.assigned-projects { border-left: 1px solid var(--accent); padding-left: 32px; }
.assigned-projects > div { position: relative; display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.assigned-projects > div::before { content: ''; position: absolute; width: 32px; height: 1px; background: var(--accent); left: -33px; top: 50%; }
.assigned-projects > div:last-child { border-bottom: 0; }
.assigned-projects strong { font-size: 17px; }
.assigned-projects span { display: flex; align-items: center; gap: 6px; color: var(--accent); font-size: 13px; }
.assigned-projects svg, .revision-state svg, .checkpoint-verified svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; }
.assigned-projects .assignment-new { flex-direction: column; gap: 5px; }
.assigned-projects .assignment-new span { color: var(--muted); }
.revision-diagram { display: grid; grid-template-columns: 1fr 170px 1fr; gap: 16px; align-items: center; padding: 42px 60px; }
.revision-note { padding: 26px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); }
.revision-note h2 { margin: 20px 0 8px; font-size: 24px; letter-spacing: -.025em; }
.revision-note > p { color: var(--muted); font-size: 18px; }
.revision-note p strong { color: var(--ink); }
.revision-state { display: flex; align-items: center; gap: 6px; margin-top: 26px; font-size: 13px; color: var(--muted); }
.revision-current { border-color: var(--accent); }
.revision-current .revision-state { color: var(--accent); }
.revision-connector { display: flex; flex-direction: column; align-items: center; gap: 12px; font-size: 12px; color: var(--muted); text-align: center; }
.revision-connector svg { color: var(--accent); }
.checkpoint-diagram { list-style: none; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0; margin: 0; padding: 48px 38px 38px; }
.checkpoint-diagram li { position: relative; padding: 32px 24px 12px; border-top: 1px solid var(--accent); }
.checkpoint-dot { position: absolute; left: 24px; top: -5px; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
.checkpoint-diagram h2 { margin: 12px 0; font-size: 22px; line-height: 1.3; letter-spacing: -.025em; }
.checkpoint-diagram p { color: var(--muted); font-size: 15px; line-height: 1.7; }
.checkpoint-verified { display: flex; align-items: center; gap: 6px; margin-top: 18px; color: var(--accent); font-size: 13px; }
.review-diagram { display: grid; grid-template-columns: 1fr 80px 1.1fr; padding: 36px 56px 28px; align-items: center; }
.review-sources > div { padding: 17px 0; }
.review-sources > div + div { border-top: 1px solid var(--line); }
.review-sources span { font-size: 13px; color: var(--muted); }
.review-sources p { margin-top: 8px; font-size: 19px; }
.review-connector { color: var(--accent); text-align: center; }
.review-draft { padding: 25px; border: 1px solid var(--accent); border-radius: 12px; background: var(--bg); }
.review-draft h2 { margin: 12px 0; font-size: 24px; line-height: 1.3; letter-spacing: -.025em; }
.review-draft p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.review-status { display: inline-flex; align-items: center; min-height: 30px; margin-top: 20px; color: var(--accent); font-size: 13px; font-weight: 600; }
.review-decision { grid-column: 1/-1; display: flex; gap: 36px; align-items: baseline; border-top: 1px solid var(--line); padding-top: 24px; margin-top: 30px; }
.review-decision strong { font-size: 16px; flex-shrink: 0; }
.review-decision p { color: var(--muted); font-size: 14px; line-height: 1.7; max-width: 70ch; }
.skill-diagram { display: grid; grid-template-columns: minmax(0,1fr) 125px minmax(0,1.25fr); align-items: center; gap: 24px; padding: 38px 48px; }
.skill-catalog > .diagram-type { margin-bottom: 10px; }
.skill-catalog ul { list-style: none; margin: 0; padding: 0; }
.skill-catalog li { padding: 15px 0; border-bottom: 1px solid var(--line); }
.skill-catalog li:last-child { border: 0; }
.skill-catalog strong { display: block; font-size: 16px; }
.skill-catalog li span { display: block; margin-top: 5px; color: var(--muted); font-size: 13px; }
.skill-selected strong { color: var(--accent); }
.skill-connector { display: flex; flex-direction: column; align-items: center; gap: 10px; color: var(--accent); font-size: 12px; }
.skill-procedure { padding-left: 25px; border-left: 1px solid var(--accent); }
.skill-procedure h2 { margin: 12px 0 19px; font-size: 26px; line-height: 1.25; letter-spacing: -.025em; }
.skill-procedure ol { margin: 0; padding-left: 19px; color: var(--muted); font-size: 15px; line-height: 1.6; }
.skill-procedure li + li { margin-top: 9px; }
.skill-procedure > p { margin-top: 20px; font-size: 13px; color: var(--muted); }

.detail-explanation { border-top: 1px solid var(--line); }
.detail-explanation article { display: grid; grid-template-columns: minmax(0,.8fr) minmax(0,1.2fr); gap: clamp(40px,6vw,90px); padding: 35px 0; border-bottom: 1px solid var(--line); }
.detail-explanation h2 { max-width: 23ch; font-size: 25px; line-height: 1.3; letter-spacing: -.025em; }
.detail-explanation p, .detail-example > p, .detail-boundary > p { max-width: 70ch; font-size: 16px; line-height: 1.8; color: var(--muted); }
.detail-example { display: grid; grid-template-columns: minmax(0,.8fr) minmax(0,1.2fr); gap: clamp(40px,6vw,90px); margin: 56px 0; padding: 38px; background: var(--surface); border-radius: 12px; }
.detail-example h2 { font-size: 28px; line-height: 1.25; letter-spacing: -.025em; }
.detail-boundary { display: grid; grid-template-columns: minmax(0,.8fr) minmax(0,1.2fr); gap: clamp(40px,6vw,90px); padding: 14px 0 60px; }
.detail-boundary h2 { font-size: 23px; letter-spacing: -.02em; }
.detail-boundary nav { display: flex; flex-direction: column; align-items: flex-start; margin-top: 17px; }
.detail-boundary nav a { display: inline-flex; align-items: center; gap: 9px; min-height: 44px; color: var(--accent); font-size: 14px; }
.detail-boundary nav a:hover { text-decoration: underline; }
.detail-related { border-top: 1px solid var(--line); padding-top: 36px; }
.detail-related h2 { font-size: 25px; letter-spacing: -.025em; margin-bottom: 22px; }
.detail-related nav { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0 28px; }
.detail-related a { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 62px; border-bottom: 1px solid var(--line); font-size: 15px; color: var(--muted); }
.detail-related a svg { color: var(--accent); }
.detail-related a:hover { color: var(--ink); border-color: var(--accent); }
.detail-closing { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 72px 0 76px; }
.detail-closing h2 { font-size: 32px; letter-spacing: -.03em; line-height: 1.25; }
.detail-closing p { color: var(--muted); font-size: 15px; line-height: 1.7; margin-top: 12px; }
.detail-closing .button { flex-shrink: 0; }

/* Hubs use useful groupings, not a wall of same-size feature cards. */
.detail-feature-group { display: grid; grid-template-columns: minmax(0,.8fr) minmax(0,1.2fr); gap: clamp(40px,6vw,90px); border-top: 1px solid var(--line); padding: 32px 0 50px; }
.feature-group-heading h2 { font-size: 30px; letter-spacing: -.025em; line-height: 1.25; max-width: 20ch; }
.feature-group-heading > p { color: var(--muted); font-size: 15px; line-height: 1.7; max-width: 32ch; margin-top: 15px; }
.detail-directory article { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 25px; align-items: center; padding: 24px 0; border-bottom: 1px solid var(--line); }
.detail-directory article:first-child { padding-top: 0; }
.detail-directory article:last-child { border-bottom: 0; padding-bottom: 0; }
.detail-directory h3 { font-size: 22px; line-height: 1.3; letter-spacing: -.02em; }
.detail-directory h3 a { display: inline-flex; align-items: center; min-height: 44px; }
.detail-directory h3 a:hover { color: var(--accent); }
.detail-directory p { max-width: 50ch; margin-top: 7px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.solution-directory { border-top: 1px solid var(--line); }
.solution-directory article { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,.85fr); align-items: center; gap: clamp(40px,8vw,110px); padding: 42px 0; border-bottom: 1px solid var(--line); }
.solution-directory h2 { font-size: 31px; line-height: 1.25; letter-spacing: -.025em; }
.solution-directory h2 a:hover { color: var(--accent); }
.solution-directory article > div > p { max-width: 48ch; color: var(--muted); font-size: 16px; line-height: 1.7; margin-top: 14px; }
.solution-directory .detail-text-link { margin-top: 13px; }
.solution-example { padding: 28px 30px; background: var(--surface); color: var(--accent); border-radius: 12px; font-size: 24px; font-weight: 500; line-height: 1.4; letter-spacing: -.025em; }

@media(max-width: 1000px) {
  .detail-hero { gap: 36px; }
  .detail-lead { font-size: 17px; }
  .knowledge-route { grid-template-columns: minmax(110px,1fr) 40px minmax(220px,1.4fr) 40px minmax(110px,1fr); gap: 5px; padding: 34px 22px; }
  .route-connector .detail-arrow { width: 34px; }
  .knowledge-note { padding: 19px; }
  .assignment-diagram, .revision-diagram, .review-diagram { padding-inline: 30px; }
  .revision-diagram { grid-template-columns: 1fr 100px 1fr; }
  .skill-diagram { grid-template-columns: minmax(0,1fr) 90px minmax(0,1.2fr); gap: 18px; padding-inline: 30px; }
  .skill-connector { text-align: center; }
  .checkpoint-diagram { padding-inline: 20px; }
  .checkpoint-diagram li { padding-inline: 15px; }
}
@media(max-width: 760px) {
  .feature-detail .detail-main { padding-top: 10px; }
  .detail-hero { grid-template-columns: 1fr; gap: 25px; padding: 28px 0 38px; }
  .detail-hero h1 { font-size: clamp(36px,7.2vw,54px); }
  .detail-lead { max-width: 58ch; font-size: 16px; }
  .feature-detail #landing .detail-intro .hero-actions { margin-top: 20px; }
  .detail-visual { margin-bottom: 42px; }
  .detail-visual figcaption { align-items: flex-start; flex-direction: column; gap: 5px; padding: 17px 20px; }
  .detail-flow-note { padding: 17px 20px; }
  .knowledge-route { grid-template-columns: 1fr; gap: 20px; padding: 25px 22px; }
  .route-end { text-align: left; }
  .route-agent { margin-bottom: 5px; }
  .route-end p { margin-top: 5px; }
  .route-end p br { display: none; }
  .route-connector { flex-direction: row; justify-content: flex-start; gap: 12px; }
  .route-connector .detail-arrow { transform: rotate(90deg); width: 24px; }
  .knowledge-note { width: 100%; max-width: none; padding: 23px; }
  .knowledge-note blockquote { font-size: 24px; }
  .note-kind { margin-top: 19px; }
  .assignment-diagram { grid-template-columns: minmax(0,1fr); gap: 18px; padding: 26px; }
  .assignment-branch { justify-content: flex-start; padding-left: 3px; }
  .assignment-branch svg { transform: rotate(90deg); }
  .assigned-projects { margin-left: 23px; }
  .rule-source { padding-right: 0; }
  .revision-diagram { grid-template-columns: 1fr; gap: 20px; padding: 25px; }
  .revision-connector { flex-direction: row; justify-content: flex-start; gap: 12px; }
  .revision-connector svg { transform: rotate(90deg); }
  .checkpoint-diagram { grid-template-columns: 1fr; padding: 26px; }
  .checkpoint-diagram li { padding: 4px 0 28px 23px; border-top: 0; border-left: 1px solid var(--accent); }
  .checkpoint-diagram li:last-child { padding-bottom: 0; }
  .checkpoint-dot { left: -5px; top: 8px; }
  .checkpoint-diagram h2 { margin-block: 8px; }
  .review-diagram { grid-template-columns: 1fr; gap: 17px; padding: 25px; }
  .review-connector { text-align: left; }
  .review-connector svg { transform: rotate(90deg); }
  .review-draft { padding: 22px; }
  .review-decision { grid-column: auto; flex-direction: column; gap: 8px; margin-top: 6px; }
  .review-decision strong { flex-shrink: 1; }
  .skill-diagram { grid-template-columns: 1fr; gap: 25px; padding: 25px; }
  .skill-connector { flex-direction: row; gap: 12px; }
  .skill-connector svg { transform: rotate(90deg); }
  .skill-procedure { border-left: 0; padding-left: 0; }
  .detail-explanation article, .detail-example, .detail-boundary, .detail-feature-group { grid-template-columns: 1fr; gap: 16px; }
  .detail-explanation article { padding: 26px 0; }
  .detail-explanation h2 { font-size: 23px; max-width: 36ch; }
  .detail-explanation p, .detail-example > p, .detail-boundary > p { font-size: 15px; }
  .detail-example { padding: 25px; margin: 35px 0; }
  .detail-example h2 { font-size: 26px; }
  .detail-boundary { padding-bottom: 40px; }
  .detail-boundary > p { grid-row: 2; }
  .detail-related { padding-top: 26px; }
  .detail-related nav { grid-template-columns: 1fr 1fr; }
  .detail-related h2 { font-size: 24px; }
  .detail-closing { align-items: flex-start; flex-direction: column; padding: 48px 0; gap: 25px; }
  .detail-closing h2 { font-size: 28px; }
  .detail-feature-group { gap: 24px; padding: 28px 0 40px; }
  .feature-group-heading h2 { max-width: 25ch; font-size: 28px; }
  .feature-group-heading > p { max-width: 50ch; margin-top: 10px; }
  .detail-directory article { padding: 21px 0; gap: 20px; }
  .detail-directory h3 { font-size: 21px; }
  .detail-directory p { font-size: 15px; }
  .solution-directory article { grid-template-columns: 1fr; gap: 25px; padding: 30px 0; }
  .solution-directory h2 { font-size: 27px; }
  .solution-example { font-size: 22px; padding: 25px; }
}
@media(max-width: 420px) {
  .detail-hero h1 { font-size: 36px; }
  .detail-related nav { grid-template-columns: 1fr; }
  .detail-directory article { grid-template-columns: 1fr; gap: 3px; }
  .assigned-projects > div { flex-direction: column; gap: 6px; }
  .knowledge-note, .revision-note, .review-draft { padding: 19px; }
  .knowledge-note blockquote { font-size: 22px; }
  .revision-diagram, .review-diagram, .skill-diagram, .checkpoint-diagram, .assignment-diagram { padding: 22px 18px; }
}

/* Stack the introduction before tablet columns become too narrow. */
@media(max-width: 900px) {
  .detail-hero { grid-template-columns: 1fr; gap: 24px; padding-block: 28px 40px; }
  .detail-hero h1 { max-width: 22ch; }
  .detail-lead { max-width: 58ch; }
}