/* Review layer: hub, scenario console, screen gallery and handoff.
   These pages document the concept. They are not product screens. */
.review { background: var(--bg-secondary); min-height: 100dvh; }
.review-nav { position: sticky; top: 0; z-index: 10; background: var(--bg-primary); border-bottom: 1px solid var(--border-secondary); }
.review-nav-inner { max-width: 1360px; margin: 0 auto; padding: 0 var(--space-8); min-height: 56px; display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }
.review-brand { display: flex; align-items: center; gap: var(--space-3); font-weight: 600; color: var(--text-primary); text-decoration: none; border-radius: var(--radius-sm); }
.review-brand img { height: 22px; width: auto; display: block; }
.review-brand span { color: var(--text-tertiary); font-weight: 500; }
.review-links { display: flex; gap: var(--space-1); flex-wrap: wrap; margin-left: auto; }
.review-links a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 var(--space-3); border-radius: var(--radius-md); color: var(--text-secondary); font-weight: 500; text-decoration: none; }
.review-links a:hover { background: var(--bg-active); color: var(--text-primary); }
.review-links a[aria-current="page"] { background: var(--bg-tertiary); color: var(--text-primary); font-weight: 600; }

.review-main { max-width: 1360px; margin: 0 auto; padding: var(--space-10) var(--space-8) 96px; display: flex; flex-direction: column; gap: 56px; }
.review-hero { display: flex; flex-direction: column; gap: var(--space-4); max-width: 820px; }
.review-kicker { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.review-h1 { font-size: 2.25rem; line-height: 1.2; font-weight: 600; letter-spacing: -0.02em; color: var(--text-primary); text-wrap: balance; }
.review-lead { font-size: var(--text-md); line-height: 1.6; color: var(--text-secondary); max-width: 68ch; }
.review-section { display: flex; flex-direction: column; gap: var(--space-5); }
.review-h2 { font-size: 1.5rem; line-height: 1.3; font-weight: 600; letter-spacing: -0.01em; color: var(--text-primary); }
.review-h3 { font-size: var(--text-md); font-weight: 600; color: var(--text-primary); }
.review-text { color: var(--text-secondary); max-width: 72ch; line-height: 1.6; }
.review-text a, .doc a, .doc-list a { color: var(--text-brand-action); font-weight: 500; text-underline-offset: 3px; }
.review-text a:hover, .doc a:hover, .doc-list a:hover { text-decoration-thickness: 2px; }
.review-cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-2); }

.deliverables { display: flex; flex-direction: column; max-width: 960px; border: 1px solid var(--border-secondary); border-radius: var(--radius-xl); background: var(--bg-primary); overflow: hidden; }
.deliverable { display: grid; grid-template-columns: 32px 232px minmax(0, 1fr); gap: var(--space-1) var(--space-4); align-items: baseline; padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--border-secondary); color: inherit; text-decoration: none; }
.deliverable:last-child { border-bottom: 0; }
.deliverable:hover { background: var(--bg-active); }
.deliverable:active { background: var(--bg-tertiary); }
.deliverable:focus-visible { outline-offset: -2px; }
.deliverable .num { font-size: var(--text-xs); color: var(--text-tertiary); font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }
.deliverable strong { color: var(--text-primary); }
.deliverable span { color: var(--text-secondary); }

/* Flow map */
.flow { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-6); border: 1px solid var(--border-secondary); border-radius: var(--radius-xl); background: var(--bg-primary); }
.flow-lane { display: grid; grid-template-columns: 148px minmax(0, 1fr); gap: var(--space-4); align-items: stretch; }
.flow-lane + .flow-lane { border-top: 1px dashed var(--border-primary); padding-top: var(--space-3); }
.flow-label { font-size: var(--text-xs); font-weight: 600; color: var(--text-tertiary); letter-spacing: 0.01em; padding-top: var(--space-3); }
.flow-label small { display: block; font-weight: 400; margin-top: 2px; }
.flow-track { display: flex; align-items: center; gap: 0; flex-wrap: nowrap; }
.flow-node { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 2px; padding: var(--space-3); border: 1px solid var(--border-primary); border-radius: var(--radius-lg); background: var(--bg-primary); color: var(--text-primary); text-decoration: none; font-weight: 600; font-size: 13px; line-height: 1.4; letter-spacing: 0.01em; overflow-wrap: anywhere; }
.flow-node small { font-weight: 400; color: var(--text-tertiary); font-size: var(--text-xs); letter-spacing: 0.01em; }
a.flow-node:hover { background: var(--bg-active); border-color: var(--text-quaternary); }
.flow-node.is-existing { border-style: dashed; background: var(--bg-secondary); }
.flow-node.is-boundary { border-color: var(--text-secondary); border-width: 2px; }
.flow-node.is-failure { border-color: var(--border-warning); background: var(--bg-warning-subtle); }
.flow-arrow { flex: none; width: 28px; display: grid; place-items: center; color: var(--text-quaternary); }
.flow-arrow svg { width: 18px; height: 18px; }
.flow-stack { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.flow-stack .flow-node { flex: none; }
.flow-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-2); }
.scope { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
.flow-key { display: flex; flex-wrap: wrap; gap: var(--space-5); color: var(--text-tertiary); font-size: var(--text-sm); }
.flow-key span { display: inline-flex; align-items: center; gap: var(--space-2); }
.flow-key i { width: 20px; height: 14px; border-radius: 4px; border: 1px solid var(--border-primary); background: var(--bg-primary); }
.flow-key i.is-existing { border-style: dashed; background: var(--bg-secondary); }
.flow-key i.is-boundary { border-color: var(--text-secondary); border-width: 2px; }
.flow-key i.is-failure { border-color: var(--border-warning); background: var(--bg-warning-subtle); }

/* Scenario console */
.console { display: grid; grid-template-columns: 320px minmax(0, 1fr); height: calc(100dvh - 57px); }
.console-rail { border-right: 1px solid var(--border-secondary); background: var(--bg-primary); overflow-y: auto; padding: var(--space-5); display: flex; flex-direction: column; gap: var(--space-5); }
.console-group { display: flex; flex-direction: column; gap: var(--space-2); }
.console-group h2 { font-size: var(--text-xs); font-weight: 600; color: var(--text-tertiary); letter-spacing: 0.01em; }
.scenario { display: flex; flex-direction: column; gap: 2px; width: 100%; text-align: left; padding: 10px var(--space-3); border: 1px solid var(--border-secondary); border-radius: var(--radius-lg); background: var(--bg-primary); color: var(--text-primary); font-weight: 600; }
.scenario small { font-weight: 400; color: var(--text-tertiary); font-size: var(--text-xs); line-height: 1.5; letter-spacing: 0.01em; }
.scenario:hover { background: var(--bg-active); border-color: var(--border-primary); }
.scenario[aria-pressed="true"] { border-color: var(--border-brand); background: var(--bg-brand-subtle); box-shadow: inset 0 0 0 1px var(--border-brand); }
.segmented { display: inline-flex; padding: 2px; border: 1px solid var(--border-primary); border-radius: var(--radius-lg); background: var(--bg-secondary); gap: 2px; }
.segmented button { min-height: 36px; padding: 0 var(--space-3); border: 0; border-radius: var(--radius-md); background: transparent; color: var(--text-secondary); font-weight: 600; }
.segmented button:hover { background: var(--bg-active); color: var(--text-primary); }
.segmented button[aria-pressed="true"] { background: var(--bg-primary); color: var(--text-primary); box-shadow: var(--shadow-xs), inset 0 0 0 1px var(--border-primary); }
.console-stage { background: var(--bg-tertiary); display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.console-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; padding: var(--space-3) var(--space-5); border-bottom: 1px solid var(--border-secondary); background: var(--bg-primary); }
.console-bar p { color: var(--text-secondary); max-width: 80ch; }
.console-bar strong { color: var(--text-primary); }
.console-frame { flex: 1; min-height: 0; display: flex; justify-content: center; padding: var(--space-5); overflow: auto; }
.console-frame iframe { width: 100%; height: 100%; border: 1px solid var(--border-primary); border-radius: var(--radius-xl); background: var(--bg-primary); box-shadow: var(--shadow-md); }
.console-frame.is-mobile iframe { width: 390px; height: 844px; flex: none; }

/* Screen gallery */
.shots { display: grid; grid-template-columns: repeat(auto-fill, minmax(620px, 1fr)); gap: var(--space-6); }
.shots.is-mobile { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.shot { display: flex; flex-direction: column; gap: var(--space-3); min-width: 0; }
.shot-frame { position: relative; border: 1px solid var(--border-primary); border-radius: var(--radius-xl); background: var(--bg-primary); overflow: hidden; box-shadow: var(--shadow-xs); }
.shot-frame iframe { display: block; border: 0; transform-origin: 0 0; pointer-events: none; }
.shot-cap { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); }
.shot-cap div { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.shot-cap strong { color: var(--text-primary); }
.shot-cap span { color: var(--text-tertiary); }
.shot-cap a { flex: none; }

/* Handoff document */
.doc { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: var(--space-10); align-items: start; }
.doc-toc { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 2px; }
.doc-toc a { display: block; padding: 6px var(--space-3); border-radius: var(--radius-md); color: var(--text-secondary); font-weight: 500; text-decoration: none; }
.doc-toc a:hover { background: var(--bg-active); color: var(--text-primary); }
.doc-body { display: flex; flex-direction: column; gap: 56px; min-width: 0; }
.doc-body section { display: flex; flex-direction: column; gap: var(--space-4); scroll-margin-top: 80px; }
.doc-list { display: flex; flex-direction: column; gap: var(--space-2); color: var(--text-secondary); max-width: 76ch; line-height: 1.6; }
.doc-list li { position: relative; padding-left: var(--space-5); }
.doc-list li::before { content: ''; position: absolute; left: 4px; top: 10px; width: 5px; height: 5px; border-radius: var(--radius-full); background: var(--text-quaternary); }
.doc-list strong { color: var(--text-primary); }
.doc code { font-family: var(--font-mono); font-size: 12.5px; padding: 1px 5px; border-radius: var(--radius-sm); background: var(--bg-tertiary); color: var(--text-primary); overflow-wrap: anywhere; }
.doc .data-table td { vertical-align: top; line-height: 1.5; }
.doc .data-table td:first-child { color: var(--text-primary); font-weight: 500; }
.state { display: inline-flex; align-items: center; gap: 6px; padding: 2px 8px; border-radius: var(--radius-md); border: 1px solid var(--border-primary); font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.01em; white-space: nowrap; color: var(--text-secondary); background: var(--bg-primary); }
.state::before { content: ''; width: 8px; height: 8px; border-radius: 2px; background: var(--text-quaternary); }
.state-reuse::before { background: var(--ez-color-success-500); }
.state-gap { border-style: dashed; }
.state-gap::before { background: var(--ez-color-warning-500); border-radius: var(--radius-full); }
.state-new::before { background: var(--ez-color-brand-500); transform: rotate(45deg); }
.columns-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.checklist { display: flex; flex-direction: column; gap: var(--space-2); }
.checklist li { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: var(--space-3); padding: var(--space-3) var(--space-4); border: 1px solid var(--border-secondary); border-radius: var(--radius-lg); background: var(--bg-primary); color: var(--text-secondary); }
.checklist svg { width: 20px; height: 20px; color: var(--text-success); }
.checklist strong { color: var(--text-primary); display: block; }

@media (max-width: 1080px) {
  .flow-lane { grid-template-columns: minmax(0, 1fr); gap: var(--space-2); }
  .flow-label { padding-top: 0; }
  .flow-label small { display: inline; margin-left: 6px; }
  .flow-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .flow { padding: var(--space-4); }
  .deliverable { grid-template-columns: 32px minmax(0, 1fr); }
  .deliverable span:not(.num) { grid-column: 2; }
  .flow-track { flex-direction: column; align-items: stretch; }
  .flow-track > .flow-node, .flow-track > .flow-stack { flex: none; }
  .flow-arrow { width: 100%; height: 24px; }
  .flow-arrow svg { transform: rotate(90deg); }
  .flow-grid, .scope { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scope { grid-template-columns: minmax(0, 1fr); }
  .review-main { gap: var(--space-10); padding-top: var(--space-8); }
}
@media (max-width: 420px) {
  .flow-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 960px) {
  .console { grid-template-columns: minmax(0, 1fr); height: auto; }
  .console-rail { border-right: 0; border-bottom: 1px solid var(--border-secondary); }
  .console-frame { min-height: 860px; }
  .doc { grid-template-columns: minmax(0, 1fr); }
  .doc-toc { position: static; flex-direction: row; flex-wrap: wrap; }
  .columns-3 { grid-template-columns: minmax(0, 1fr); }
  .shots { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .review-nav-inner, .review-main { padding-left: var(--space-4); padding-right: var(--space-4); }
  .review-links { margin-left: 0; }
  .review-h1 { font-size: 1.75rem; }
}