/* ---------- Hero ---------- */
.hero{padding:56px 0 var(--section-gap);}
.hero-eyebrow{display:block;margin-bottom:20px;}
.hero-title{margin:0 0 28px;}
.hero-cta-row{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap;}
.hero-diagram-wrap{border:1px solid var(--border);border-radius:var(--radius-medium);padding:28px;background:var(--surface);}

/* ---------- Status bar ---------- */
.status-bar{display:flex;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.status-item{flex:1;padding:28px 24px;border-right:1px solid var(--border);cursor:pointer;transition:background var(--transition-fast);text-align:left;}
.status-item:last-child{border-right:none;}
.status-item:hover{background:var(--surface);}
.status-num{font-family:var(--mono);font-size:clamp(1.8rem,4vw,2.6rem);color:var(--accent-rust);display:block;}
.status-label{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:6px;display:block;}
.status-detail{max-width:var(--wide-width);margin:0 auto;padding:0 32px 28px;font-size:.92rem;color:var(--muted);display:none;}
.status-detail.open{display:block;}
@media (max-width:720px){.status-bar{flex-direction:column;}.status-item{border-right:none;border-bottom:1px solid var(--border);}}

/* ---------- Problem selector ---------- */
.problem-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px;}
.problem-tab{border:1px solid rgba(255,255,255,.25);border-radius:100px;padding:10px 18px;font-family:var(--mono);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase;color:rgba(255,255,255,.7);}
.problem-tab.active{background:var(--background);color:var(--foreground);border-color:var(--background);}
.problem-detail{border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-medium);padding:36px;display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
@media (max-width:720px){.problem-detail{grid-template-columns:1fr;}}
.problem-quote{font-family:var(--serif);font-style:italic;font-size:1.3rem;margin-top:10px;color:rgba(255,255,255,.9);}
.problem-col .label{color:rgba(255,255,255,.5);margin-bottom:12px;}
.problem-col ul li{padding:4px 0;font-size:.95rem;color:rgba(255,255,255,.85);}

/* ---------- Expertise panels ---------- */
.expertise-panel{border-top:1px solid var(--border);}
.expertise-panel:last-child{border-bottom:1px solid var(--border);}
.expertise-trigger{width:100%;display:flex;align-items:center;gap:24px;padding:28px 0;text-align:left;}
.expertise-trigger .num{font-family:var(--mono);color:var(--accent-rust);font-size:.85rem;flex:none;width:36px;}
.expertise-trigger .title-wrap{flex:1;}
.expertise-trigger h3{font-family:var(--serif);font-size:1.5rem;}
.expertise-trigger .tags{font-size:.85rem;color:var(--muted);margin-top:4px;}
.expertise-trigger .chev{font-family:var(--mono);transition:transform var(--transition-fast);flex:none;}
.expertise-panel.open .chev{transform:rotate(45deg);}
.expertise-body{max-height:0;overflow:hidden;transition:max-height var(--transition-medium);}
.expertise-panel.open .expertise-body{max-height:600px;}
.expertise-body-inner{padding:0 0 36px 60px;display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:32px;}
@media (max-width:820px){.expertise-body-inner{grid-template-columns:1fr;padding-left:0;}}
.expertise-body-inner .label{margin-bottom:12px;}
.expertise-body-inner li{padding:5px 0;font-size:.92rem;border-bottom:1px dotted var(--border);}

/* ---------- Metric / KPI ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);}
.metric-card{background:var(--background);padding:32px;position:relative;}
.metric-num{font-family:var(--mono);font-size:clamp(2rem,4vw,3rem);color:var(--accent-rust);}
.metric-label{margin-top:8px;font-size:.9rem;color:var(--muted);}
.metric-card button.metric-evidence{margin-top:16px;font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border-bottom:1px dotted var(--muted);}
.metric-card button.metric-evidence:hover{color:var(--accent-rust);border-color:var(--accent-rust);}
@media (max-width:720px){.metric-grid{grid-template-columns:1fr;}}

/* ---------- Case study / work cards ---------- */
.project-row{border-top:1px solid var(--border);}
.project-row:last-child{border-bottom:1px solid var(--border);}
.project-link{display:grid;grid-template-columns:60px 130px 1fr 220px 40px;align-items:center;gap:24px;padding:28px 0;position:relative;}
.project-link .num{font-family:var(--mono);color:var(--muted);}
.project-link .industry{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);}
.project-link h3{font-family:var(--serif);font-size:1.3rem;line-height:1.2;}
.project-link .result{font-family:var(--mono);font-size:.82rem;color:var(--accent-rust);text-align:right;}
.project-link .arrow{text-align:right;color:var(--muted);transition:transform var(--transition-fast);}
.project-link:hover .arrow{transform:translateX(4px);color:var(--foreground);}
.project-hover-panel{display:none;position:absolute;left:60px;bottom:-4px;transform:translateY(100%);background:var(--foreground);color:var(--background);padding:16px 20px;border-radius:var(--radius-small);font-size:.8rem;z-index:5;min-width:220px;}
.project-link:hover .project-hover-panel{display:block;}
@media (max-width:820px){
  .project-link{grid-template-columns:1fr;gap:8px;padding:24px 0;}
  .project-link .result{text-align:left;}
  .project-link .arrow{display:none;}
  .project-hover-panel{display:none !important;}
}

.case-card{display:block;border:1px solid var(--border);padding:32px;border-radius:var(--radius-medium);transition:border-color var(--transition-fast),transform var(--transition-fast);height:100%;}
.case-card:hover{border-color:var(--foreground);transform:translateY(-3px);}
.case-card .num{color:var(--muted);}
.case-card h3{font-family:var(--serif);font-size:1.3rem;margin:14px 0 10px;}
.case-card .result{font-family:var(--mono);font-size:.85rem;color:var(--accent-rust);margin-bottom:12px;}

/* ---------- Filters ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:48px;}
.filter-pill{border:1px solid var(--border-strong);border-radius:100px;padding:9px 18px;font-family:var(--mono);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);}
.filter-pill.active{background:var(--foreground);color:var(--background);border-color:var(--foreground);}

/* ---------- Diagrams (SVG) ---------- */
.diagram-node{fill:var(--surface);stroke:var(--border-strong);stroke-width:1;}
.diagram-node-text{font-family:var(--mono);font-size:11px;fill:var(--foreground);text-transform:uppercase;letter-spacing:.05em;}
.diagram-line{stroke:var(--border-strong);stroke-width:1;fill:none;}
.diagram-line-anim{stroke-dasharray:6 6;animation:dash 20s linear infinite;}
@keyframes dash{to{stroke-dashoffset:-240;}}
.diagram-accent{stroke:var(--accent-rust);}

/* ---------- Method ---------- */
.method-stage-list{display:flex;flex-direction:column;}
.method-stage{display:flex;gap:20px;padding:20px 0;border-top:1px solid var(--border);cursor:pointer;}
.method-stage:last-child{border-bottom:1px solid var(--border);}
.method-stage .num{font-family:var(--mono);color:var(--muted);width:36px;flex:none;}
.method-stage.active .num{color:var(--accent-rust);}
.method-stage h4{font-family:var(--serif);font-size:1.2rem;}
.method-stage.active h4{color:var(--accent-rust);}
.method-detail{border:1px solid var(--border);border-radius:var(--radius-medium);padding:32px;background:var(--surface);}
.method-detail .label{margin-bottom:14px;}
.method-detail ul li{padding:4px 0;font-size:.92rem;}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:32px;}
.timeline::before{content:'';position:absolute;left:5px;top:6px;bottom:6px;width:1px;background:var(--border-strong);}
.timeline-item{position:relative;padding-bottom:28px;cursor:pointer;}
.timeline-item::before{content:'';position:absolute;left:-32px;top:5px;width:9px;height:9px;border-radius:50%;background:var(--border-strong);}
.timeline-item.active::before{background:var(--accent-rust);}
.timeline-year{font-family:var(--mono);font-size:.85rem;color:var(--muted);}
.timeline-item.active .timeline-year{color:var(--accent-rust);}
.timeline-item h4{font-family:var(--serif);font-size:1.1rem;margin:2px 0 6px;}
.timeline-desc{display:none;font-size:.92rem;color:var(--muted);max-width:460px;}
.timeline-item.active .timeline-desc{display:block;}

/* ---------- Credentials ---------- */
.cred-row{border-top:1px solid var(--border);}
.cred-row:last-child{border-bottom:1px solid var(--border);}
.cred-trigger{width:100%;display:flex;justify-content:space-between;padding:22px 0;text-align:left;}
.cred-trigger .cat{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);}
.cred-body{max-height:0;overflow:hidden;transition:max-height var(--transition-medium);}
.cred-row.open .cred-body{max-height:400px;}
.cred-body-inner{padding:0 0 24px;font-size:.92rem;color:var(--muted);}
.cred-body-inner li{padding:3px 0;}

/* ---------- Values ---------- */
.value-item{border-top:1px solid var(--border);padding:24px 0;cursor:pointer;}
.value-item:last-child{border-bottom:1px solid var(--border);}
.value-item h3{font-family:var(--serif);font-size:1.3rem;}
.value-explain{max-height:0;overflow:hidden;transition:max-height var(--transition-medium);font-size:.92rem;color:var(--muted);}
.value-item.open .value-explain{max-height:200px;margin-top:12px;}

/* ---------- Diagnostic matrix table ---------- */
.matrix-table{width:100%;border-collapse:collapse;font-size:.9rem;}
.matrix-table th{text-align:left;font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:10px 14px;border-bottom:1px solid var(--border-strong);}
.matrix-table td{padding:14px 14px;border-bottom:1px solid var(--border);vertical-align:top;}
.priority-tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.05em;text-transform:uppercase;padding:3px 8px;border-radius:100px;}
.priority-high{background:var(--accent-rust-soft);color:var(--accent-rust);}
.priority-medium{background:var(--accent-soft);color:var(--accent);}
.priority-low{background:var(--surface);color:var(--muted);border:1px solid var(--border);}

/* ---------- Before/After slider ---------- */
.compare-wrap{position:relative;border:1px solid var(--border);border-radius:var(--radius-medium);overflow:hidden;background:var(--surface);}
.compare-frame{position:relative;height:340px;}
.compare-pane{position:absolute;inset:0;padding:28px;overflow:hidden;}
.compare-pane.after{clip-path:inset(0 0 0 50%);background:var(--background);}
.compare-tag{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;display:block;}
.compare-slider{position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--accent-rust);cursor:ew-resize;}
.compare-slider-handle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:38px;height:38px;border-radius:50%;background:var(--accent-rust);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;}
.compare-range{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0;}

/* ---------- Article ---------- */
.article-row{display:grid;grid-template-columns:120px 1fr 140px;gap:24px;align-items:baseline;padding:26px 0;border-top:1px solid var(--border);}
.article-row:last-child{border-bottom:1px solid var(--border);}
.article-row .cat{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);}
.article-row h3{font-family:var(--serif);font-size:1.25rem;}
.article-row .meta{font-family:var(--mono);font-size:.75rem;color:var(--muted);text-align:right;}
@media (max-width:720px){.article-row{grid-template-columns:1fr;gap:6px;}.article-row .meta{text-align:left;}}

.reading-progress{position:fixed;top:0;left:0;height:3px;background:var(--accent-rust);z-index:70;transition:width .08s linear;}
.toc{position:sticky;top:110px;}
.toc a{display:block;font-family:var(--mono);font-size:.76rem;padding:6px 0;color:var(--muted);border-left:2px solid var(--border);padding-left:14px;}
.toc a.active{color:var(--foreground);border-color:var(--accent-rust);}
.reading-controls{display:flex;gap:20px;flex-wrap:wrap;align-items:center;border:1px solid var(--border);border-radius:var(--radius-medium);padding:14px 18px;margin-bottom:40px;}
.reading-controls .ctrl-group{display:flex;align-items:center;gap:8px;}
.reading-controls .label{margin:0;}
.reading-controls .seg{display:flex;border:1px solid var(--border);border-radius:var(--radius-small);overflow:hidden;}
.reading-controls .seg button{padding:6px 10px;font-family:var(--mono);font-size:.7rem;color:var(--muted);}
.reading-controls .seg button.active{background:var(--foreground);color:var(--background);}
body.focus-mode .site-header,body.focus-mode .site-footer,body.focus-mode .toc,body.focus-mode .related-articles{display:none !important;}
body.focus-mode .article-body-wrap{max-width:760px;}
body.text-lg .article-body{font-size:1.12rem;}
body.text-xl .article-body{font-size:1.26rem;}
body.wide-read .article-body-wrap{max-width:900px;}

/* ---------- Notes ---------- */
.note-card{border:1px solid var(--border);border-radius:var(--radius-medium);padding:26px;cursor:pointer;transition:border-color var(--transition-fast);}
.note-card:hover{border-color:var(--foreground);}
.note-date{font-family:var(--mono);font-size:.72rem;color:var(--muted);}
.note-text{font-family:var(--serif);font-style:italic;font-size:1.15rem;margin-top:10px;}
.note-expanded{border:1px solid var(--border-strong);border-radius:var(--radius-medium);padding:40px;margin-top:24px;background:var(--surface);}

/* ---------- Diagnostic ---------- */
.diagnostic-progress{display:flex;align-items:center;gap:16px;margin-bottom:48px;}
.diagnostic-progress-bar{flex:1;height:2px;background:var(--border);position:relative;}
.diagnostic-progress-fill{position:absolute;left:0;top:0;bottom:0;background:var(--accent-rust);transition:width var(--transition-medium);}
.diagnostic-step-label{font-family:var(--mono);font-size:.78rem;color:var(--muted);white-space:nowrap;}
.diag-question{display:none;}
.diag-question.active{display:block;}
.diag-options{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:36px;}
@media (max-width:640px){.diag-options{grid-template-columns:1fr;}}
.diag-option{border:1px solid var(--border-strong);border-radius:var(--radius-medium);padding:22px;text-align:left;transition:all var(--transition-fast);}
.diag-option:hover{border-color:var(--foreground);}
.diag-option.selected{border-color:var(--accent-rust);background:var(--accent-rust-soft);}
.diag-nav{display:flex;justify-content:space-between;margin-top:44px;}
.diag-result{display:none;}
.diag-result.active{display:block;}
.diag-result-tag{font-family:var(--mono);color:var(--accent-rust);letter-spacing:.06em;text-transform:uppercase;font-size:.8rem;}
.explore-columns{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:32px;}
@media (max-width:640px){.explore-columns{grid-template-columns:1fr;}}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.form-grid.full,.field.full{grid-column:1 / -1;}
@media (max-width:640px){.form-grid{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);}
.field input,.field textarea,.field select{
  border:1px solid var(--border-strong);border-radius:var(--radius-small);
  padding:13px 14px;background:var(--surface-elevated);color:var(--foreground);
  transition:border-color var(--transition-fast);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) center,calc(100% - 13px) center;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent-rust);}
.field textarea{resize:vertical;min-height:110px;}
.field.error input,.field.error textarea,.field.error select{border-color:var(--line-decision);}
.field-error{font-size:.78rem;color:var(--line-decision);display:none;}
.field.error .field-error{display:block;}
.form-success{border:1px solid var(--border-strong);border-radius:var(--radius-medium);padding:48px;text-align:center;background:var(--surface);}
.form-success .h3{margin-bottom:16px;}

/* ---------- Resource cards ---------- */
.resource-card{border:1px solid var(--border);border-radius:var(--radius-medium);padding:30px;display:flex;flex-direction:column;gap:14px;}
.resource-card h3{font-family:var(--serif);font-size:1.25rem;}

/* ---------- Calendar / booking ---------- */
.calendar{border:1px solid var(--border);border-radius:var(--radius-medium);padding:24px;}
.calendar-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;}
.calendar-nav-btn{width:32px;height:32px;border:1px solid var(--border);border-radius:var(--radius-small);display:flex;align-items:center;justify-content:center;}
.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;}
.calendar-dow{font-family:var(--mono);font-size:.65rem;text-align:center;color:var(--muted);padding-bottom:8px;}
.calendar-day{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-small);font-family:var(--mono);font-size:.82rem;position:relative;}
.calendar-day.available{cursor:pointer;background:var(--accent-soft);}
.calendar-day.available:hover{background:var(--accent-rust-soft);}
.calendar-day.selected{background:var(--accent-rust);color:#fff;}
.calendar-day.disabled{color:var(--muted);opacity:.35;}
.calendar-day.empty{visibility:hidden;}
.time-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px;}
.time-slot{border:1px solid var(--border-strong);border-radius:var(--radius-small);padding:12px;font-family:var(--mono);font-size:.82rem;text-align:center;}
.time-slot:hover{border-color:var(--foreground);}
.time-slot.selected{background:var(--accent-rust);color:#fff;border-color:var(--accent-rust);}

/* ---------- 404 ---------- */
.decision-tree-404{margin:48px 0;}

/* ---------- Archive ---------- */
.archive-year-nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px;}
.archive-entry{display:grid;grid-template-columns:90px 100px 1fr;gap:20px;padding:18px 0;border-top:1px solid var(--border);font-size:.92rem;}
.archive-entry:last-child{border-bottom:1px solid var(--border);}
.archive-entry .archive-date{font-family:var(--mono);color:var(--muted);font-size:.78rem;}
.archive-entry .archive-type{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-rust);}
@media (max-width:640px){.archive-entry{grid-template-columns:1fr;gap:4px;}}