/* Datamart presentation site — full stylesheet
   Implements UX/UI design system spec (2026-05-20). */

/* Make the HTML hidden attribute authoritative — beats any later display rule. */
[hidden]{display:none!important}

/* Hide main content until OIDC bootstrap finishes (auth.js adds .datamart-ready).
   The header stays visible so the user sees we're a real site, not a blank page. */
body:not(.datamart-ready) main{visibility:hidden}

/* Auth display (user email + sign-out) in the header */
.auth-display{display:flex;align-items:center;gap:12px;margin-left:auto;margin-right:24px}
@media (max-width:767px){.auth-display{margin-right:8px;gap:8px}}
.auth-user{font-size:13px;color:var(--slate-500);max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:767px){.auth-user{max-width:120px;font-size:12px}}
.auth-signout{background:none;border:1px solid var(--rule-200);color:var(--navy-700);font-size:13px;font-weight:500;padding:6px 12px;border-radius:6px;cursor:pointer;transition:background .12s ease,border-color .12s ease}
.auth-signout:hover{background:var(--paper-50);border-color:var(--navy-700)}

/* ---------- mobile nav (only at mobile widths; .nav-primary takes over above 767) ---------- */
@media (max-width:767px){
  .mobile-nav{display:flex;flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--rule-200);background:var(--paper-50)}
  .mobile-nav a{padding:14px 0;color:var(--ink-900);text-decoration:none;border-bottom:1px solid var(--rule-200);font-size:17px}
  .mobile-nav a:last-child{border-bottom:0}
}

/* ---------- problem grid ---------- */
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:32px}
@media (max-width:1023px){.problem-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:767px){.problem-grid{grid-template-columns:1fr;gap:24px}}
.problem-item h3{font-size:20px;font-weight:600;margin-bottom:12px;color:var(--ink-900)}
.problem-item p{margin:0;color:var(--slate-500);font-size:16px;line-height:1.6}

/* ---------- opportunity grid ---------- */
.opportunity-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:8px}
@media (max-width:767px){.opportunity-grid{grid-template-columns:1fr}}
.opp-item{background:var(--card-0);border:1px solid var(--rule-200);border-radius:8px;padding:20px;font-size:16px;line-height:1.55;box-shadow:0 1px 2px rgba(14,27,44,.06),0 1px 3px rgba(14,27,44,.04)}
.opp-item strong{color:var(--ink-900);font-weight:600;display:block;margin-bottom:4px}

/* ---------- feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:48px}
@media (max-width:1023px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:767px){.feature-grid{grid-template-columns:1fr}}
.feature-card{display:flex;flex-direction:column;text-align:left;background:var(--card-0);border:1px solid var(--rule-200);border-radius:8px;padding:20px;cursor:pointer;font:inherit;color:inherit;box-shadow:0 1px 2px rgba(14,27,44,.06),0 1px 3px rgba(14,27,44,.04);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease;width:100%}
.feature-card:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(14,27,44,.12);border-color:var(--navy-700)}
@media (prefers-reduced-motion:reduce){.feature-card{transition:none}.feature-card:hover{transform:none}}
.feature-card[aria-expanded="true"]{border-color:var(--navy-700);box-shadow:0 8px 24px rgba(14,27,44,.12)}
.feature-card--reserved{cursor:default;background:#F4F5F7;border-style:dashed;color:var(--slate-500)}
.feature-card--reserved:hover{transform:none;box-shadow:0 1px 2px rgba(14,27,44,.06),0 1px 3px rgba(14,27,44,.04);border-color:var(--rule-200)}
.feature-card__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.feature-id{font-family:ui-monospace,"SF Mono","Cascadia Mono",Menlo,Consolas,monospace;font-size:14px;font-weight:600;color:var(--slate-500);letter-spacing:0.04em}
.feature-card h3{font-size:20px;font-weight:600;margin-bottom:10px;color:var(--ink-900)}
.feature-card--reserved h3{color:var(--slate-500)}
.feature-card p{margin:0 0 16px;font-size:15px;line-height:1.55;color:var(--slate-500);flex-grow:1}
.feature-card__foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;font-size:13px;font-weight:500}
.expand-aff{color:var(--accent-600);font-weight:600}
.expand-aff .chev{display:inline-block;transition:transform .15s ease;margin-left:2px}
.feature-card[aria-expanded="true"] .expand-aff .chev{transform:rotate(180deg)}
@media (prefers-reduced-motion:reduce){.expand-aff .chev{transition:none}}

/* badges */
.badge{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:22px;padding:0 8px;border-radius:4px;font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:11px;font-weight:700;letter-spacing:0.04em;color:#fff;text-transform:uppercase}
.badge-S{background:#7B8893}
.badge-M{background:#5A7A9C}
.badge-L{background:#A6541C}
.badge-XL{background:#7A3A14}
.badge-reserved{background:#999;font-size:10px;letter-spacing:0.06em}

/* phase tags */
.phase-tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:4px;font-size:12px;font-weight:500;letter-spacing:0.02em}
.phase-1{background:#1f3a5f1a;color:#1f3a5f}
.phase-2{background:#2d5a8e1a;color:#2d5a8e}
.phase-3{background:#3b7bb31a;color:#3b7bb3}
.phase-4{background:#4a9bcc1a;color:#1a5c7d}
.phase-5{background:#5fb8d61a;color:#1a4d5c}
.phase-reserved{background:#9991;color:#666;font-style:italic}

/* feature detail panels — span the full grid row so they're full-width when open */
.feature-detail{grid-column:1/-1;background:var(--card-0);border:1px solid var(--navy-700);border-radius:8px;padding:28px 32px;animation:expand .2s ease-out}
@keyframes expand{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){.feature-detail{animation:none}}
.feature-detail dl{display:grid;grid-template-columns:max-content 1fr;gap:8px 24px;margin:0}
@media (max-width:767px){.feature-detail dl{grid-template-columns:1fr;gap:4px 0}.feature-detail dt{margin-top:12px}}
.feature-detail dt{font-size:13px;font-weight:600;color:var(--slate-500);text-transform:uppercase;letter-spacing:0.04em;padding-top:4px}
.feature-detail dd{margin:0;font-size:16px;line-height:1.6;color:var(--ink-900)}
.feature-detail code{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:13px;background:var(--paper-50);padding:2px 6px;border-radius:4px;color:var(--navy-700)}

/* ---------- layer-cake architecture diagram (Figure 1) ---------- */
.layercake{margin:48px 0 0;background:var(--card-0);border:1px solid var(--rule-200);border-radius:12px;padding:32px;box-shadow:0 1px 2px rgba(14,27,44,.06)}
@media (max-width:767px){.layercake{padding:20px}}
.layercake figcaption{font-size:14px;color:var(--slate-500);margin-bottom:24px;display:flex;align-items:center;gap:12px}
.lc-layer{padding:18px 20px;border-radius:8px;border:1px solid var(--rule-200);background:var(--paper-50)}
.lc-layer--security{background:rgba(254,226,226,.35);border-color:#fecaca}
.lc-layer--app{background:rgba(219,234,254,.35);border-color:#bfdbfe}
.lc-layer--store{background:rgba(220,252,231,.35);border-color:#bbf7d0}
.lc-layer--out{background:rgba(233,213,255,.4);border-color:#d8b4fe}
.lc-label{font-size:13px;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;color:var(--navy-700);margin-bottom:14px}
.lc-row{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.lc-row--grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.lc-row--grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:1023px){.lc-row--grid4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:767px){.lc-row--grid4,.lc-row--grid3{grid-template-columns:1fr}}
.lc-box{background:var(--card-0);border:1.5px solid var(--navy-700);color:var(--ink-900);padding:14px 16px;border-radius:8px;font-weight:600;text-align:center;font-size:15px;line-height:1.4}
.lc-box small{display:block;font-weight:400;color:var(--slate-500);font-size:12.5px;margin-top:4px}
.lc-box--guard{background:#FEF2F2;border-color:#9A2A2A;color:#7f1d1d}
.lc-box--guard small{color:#9a3a3a}
.lc-box--store{background:#F0FDF4;border-color:#1F6B3A;color:#14532d}
.lc-box--store small{color:#3a7a4a}
.lc-out{padding:14px 16px;font-size:15px;color:var(--ink-900);text-align:center;background:var(--card-0);border:1px solid var(--rule-200);border-radius:8px}
.lc-out strong{color:var(--navy-700);font-weight:600}
.lc-out--future{background:transparent;border:1.5px dashed var(--slate-500);color:var(--slate-500)}
.lc-out--future strong{color:var(--slate-500)}
.lc-out--future small{display:block;font-size:12.5px;color:var(--slate-500);margin-top:6px;font-style:italic}
.lc-note{margin:12px 0 0;font-size:13.5px;color:var(--slate-500);text-align:center;font-style:italic}
.lc-arrow{font-size:22px;text-align:center;color:var(--slate-500);padding:4px 0;font-weight:300;line-height:1}

/* ---------- diagrams ---------- */
.diagram-figure{margin:48px 0 0;background:var(--card-0);border:1px solid var(--rule-200);border-radius:12px;padding:32px;box-shadow:0 1px 2px rgba(14,27,44,.06);position:relative}
@media (max-width:767px){.diagram-figure{padding:20px}}
.diagram-figure figcaption{font-size:14px;color:var(--slate-500);margin-bottom:20px;display:flex;align-items:center;gap:12px}
.figure-label{font-size:12px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;color:var(--accent-600);background:#A6541C1a;padding:3px 8px;border-radius:4px}
.mermaid-container{overflow-x:auto;min-height:120px;display:flex;justify-content:center;align-items:center;background:var(--paper-50);border-radius:8px;padding:24px}
.mermaid-container::-webkit-scrollbar{height:8px}
.mermaid-container::-webkit-scrollbar-thumb{background:var(--rule-200);border-radius:4px}
.mermaid{font-family:ui-sans-serif,system-ui,-apple-system,sans-serif!important;width:100%;text-align:center}
.diagram-fullscreen{position:absolute;top:20px;right:20px;background:var(--card-0);border:1px solid var(--rule-200);border-radius:6px;padding:6px 12px;font-size:13px;font-weight:500;color:var(--navy-700);cursor:pointer;transition:background .15s ease}
.diagram-fullscreen:hover{background:var(--paper-50);border-color:var(--navy-700)}
@media (max-width:767px){.diagram-fullscreen{top:auto;bottom:8px;right:8px;background:rgba(255,255,255,.95);backdrop-filter:blur(4px)}}

/* ---------- principles ---------- */
.principles{display:grid;grid-template-columns:1fr;gap:32px;margin-top:32px;max-width:880px}
.principle{background:var(--card-0);border-left:4px solid var(--accent-600);padding:20px 28px;border-radius:0 8px 8px 0;box-shadow:0 1px 2px rgba(14,27,44,.06)}
.principle h3{font-size:20px;font-weight:600;margin-bottom:10px;color:var(--ink-900)}
.principle p{margin:0;font-size:16px;line-height:1.65;color:var(--ink-900)}
.principle em{font-style:italic;color:var(--slate-500)}
.principle strong{font-weight:600;color:var(--navy-700)}

/* ---------- roadmap phases ---------- */
.phases{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:16px;counter-reset:phase}
.phase{background:var(--card-0);border:1px solid var(--rule-200);border-radius:8px;padding:24px 28px;display:flex;flex-direction:column;gap:14px;box-shadow:0 1px 2px rgba(14,27,44,.06);border-left:3px solid var(--rule-200);position:relative}
@media (max-width:767px){.phase{padding:20px}}
.phase__head{display:flex;flex-direction:row;align-items:center;gap:12px;flex-wrap:wrap}
.phase-num{font-size:14px;font-weight:600;color:var(--slate-500);letter-spacing:0.04em;text-transform:uppercase}
.status{display:inline-flex;align-items:center;padding:3px 10px;border-radius:4px;font-size:12px;font-weight:500;width:fit-content}
.status-planned{background:#9991;color:#5A6B7D;border:1px solid var(--rule-200)}
.status-progress{background:#8A5A001a;color:var(--warning-700)}
.status-shipped{background:#1F6B3A1a;color:var(--success-700)}
.phase h3{font-size:20px;font-weight:600;margin-bottom:8px;color:var(--ink-900)}
.phase p{margin:0;font-size:16px;line-height:1.6;color:var(--ink-900)}
.phase strong{font-weight:600;color:var(--navy-700)}

/* ---------- risks ---------- */
.risk-table{width:100%;margin-top:32px;border-collapse:collapse;background:var(--card-0);border-radius:8px;overflow:hidden;border:1px solid var(--rule-200);box-shadow:0 1px 2px rgba(14,27,44,.06)}
.risk-table th{text-align:left;font-size:12px;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;padding:16px 20px;background:var(--paper-50);border-bottom:2px solid var(--rule-200)}
.risk-table th:first-child{color:var(--danger-700);width:35%}
.risk-table th:last-child{color:var(--success-700)}
.risk-table td{padding:20px;font-size:15px;line-height:1.6;vertical-align:top;border-bottom:1px solid var(--rule-200)}
.risk-table tr:last-child td{border-bottom:0}
.risk-table strong{font-weight:600;color:var(--ink-900)}
@media (max-width:767px){.risk-table{border:0;background:none;box-shadow:none}.risk-table thead{display:none}.risk-table,.risk-table tbody,.risk-table tr,.risk-table td{display:block;width:100%}.risk-table tr{background:var(--card-0);border:1px solid var(--rule-200);border-radius:8px;padding:16px;margin-bottom:12px}.risk-table td{padding:8px 0;border-bottom:0}.risk-table td:first-child::before{content:"Risk · ";font-size:11px;font-weight:700;letter-spacing:0.06em;color:var(--danger-700);text-transform:uppercase}.risk-table td:last-child::before{content:"Mitigation · ";font-size:11px;font-weight:700;letter-spacing:0.06em;color:var(--success-700);text-transform:uppercase;display:block;margin-top:8px}}
.risk-caveat{margin-top:24px;font-size:14px;color:var(--slate-500);font-style:italic;max-width:72ch}

/* ---------- accordion ---------- */
.accordion{margin-top:32px;border-top:1px solid var(--rule-200)}
.q-item{border-bottom:1px solid var(--rule-200)}
.q-item__trigger{display:flex;justify-content:space-between;align-items:center;width:100%;background:none;border:0;padding:24px 8px;font:inherit;font-size:18px;font-weight:600;color:var(--ink-900);text-align:left;cursor:pointer;transition:background .12s ease}
.q-item__trigger:hover{background:var(--paper-50)}
.q-chevron{width:20px;height:20px;color:var(--slate-500);transition:transform .15s ease;flex-shrink:0;margin-left:16px}
.q-item__trigger[aria-expanded="true"] .q-chevron{transform:rotate(90deg);color:var(--accent-600)}
@media (prefers-reduced-motion:reduce){.q-chevron{transition:none}}
.q-item__panel{padding:0 8px 28px;max-width:72ch}
.q-item__panel p{margin:0 0 12px;font-size:16px;line-height:1.65;color:var(--ink-900)}
.q-item__panel ul{margin:8px 0 0;padding-left:20px}
.q-item__panel li{margin:6px 0;font-size:15px;line-height:1.55;color:var(--slate-500)}
.q-item__panel code{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:13px;background:var(--paper-50);padding:2px 6px;border-radius:4px;color:var(--navy-700)}

/* ---------- asks ---------- */
.asks{margin:32px 0 0;padding-left:24px;max-width:72ch}
.asks li{font-size:17px;line-height:1.65;margin-bottom:16px;color:var(--ink-900)}
.asks strong{color:var(--navy-700);font-weight:600}

/* ---------- deeper list ---------- */
.deeper-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:12px;max-width:880px}
@media (max-width:767px){.deeper-list{grid-template-columns:1fr}}
.deeper-list li{background:var(--card-0);border:1px solid var(--rule-200);border-radius:6px;padding:14px 18px;font-size:15px;line-height:1.5;color:var(--ink-900)}
.deeper-list strong{font-weight:600;color:var(--navy-700);display:block;margin-bottom:2px}
.deeper-list code{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:12px;color:var(--slate-500)}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}
.modal__backdrop{position:absolute;inset:0;background:rgba(14,27,44,.6);backdrop-filter:blur(4px)}
.modal__panel{position:relative;background:var(--card-0);border-radius:12px;max-width:1400px;width:100%;max-height:90vh;display:flex;flex-direction:column;box-shadow:0 8px 24px rgba(14,27,44,.32)}
.modal__head{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--rule-200)}
.modal__head h2{font-size:18px;font-weight:600;color:var(--ink-900)}
.modal__close{background:none;border:1px solid var(--rule-200);border-radius:6px;width:36px;height:36px;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.modal__close:hover{background:var(--paper-50);border-color:var(--navy-700)}
.modal__body{padding:32px;overflow:auto;flex-grow:1;display:flex;justify-content:center;align-items:flex-start}
.modal__body svg{max-width:100%;height:auto}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--rule-200);background:var(--card-0);padding:64px 0 32px;margin-top:96px}
@media (max-width:767px){.site-footer{padding:48px 0 24px;margin-top:64px}}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-bottom:48px}
@media (max-width:767px){.footer-grid{grid-template-columns:1fr;gap:32px;margin-bottom:32px}}
.footer-grid p{margin:0 0 8px;font-size:14px;line-height:1.55;color:var(--slate-500)}
.footer-strong{font-size:13px!important;font-weight:600;color:var(--ink-900)!important;text-transform:uppercase;letter-spacing:0.06em;margin-bottom:14px!important}
.site-footer a{color:var(--navy-700);text-decoration:none;font-size:14px}
.site-footer a:hover{text-decoration:underline}
.footer-meta{font-size:12px;color:var(--slate-500);padding-top:24px;border-top:1px solid var(--rule-200);margin:0}