/* DMI product surface. Light default supports shared screens in teaching rooms. */
:root { --fs-100: .9rem; --fs-200: 1rem; --wide-width: 82rem; --radius-3: .6rem; }
html { height: 100%; overflow: hidden; }
body { height: 100vh; height: 100dvh; min-height: 0; overflow: hidden; }
.site-header, .site-footer { flex: none; }
h1, h2, h3, h4 { letter-spacing: normal; }
h1 { font-size: clamp(2rem, 3.5vw, 3.6rem); line-height: 1.12; max-width: 24ch; font-weight: 650; }
h1[tabindex="-1"]:focus { outline: none; }
.site-header { padding: 1rem 2rem; gap: 1.5rem; min-height: 80px; }
.wordmark-logo { width: 12rem; height: 2rem; }
.app-name { font-size: 1.05rem; font-weight: 650; border-left: 1px solid var(--color-border-strong); padding-left: 1.5rem; }
.app-name span { color: var(--color-text-muted); font-weight: 400; }
.library-link { margin-left: auto; font-size: .95rem; text-decoration: none; padding-block: .7rem; }
.theme-toggle { width: 44px; height: 44px; flex: none; }
main { display: grid; grid-template-columns: 240px minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); align-items: stretch; min-height: 0; overflow: hidden; }
.journey-rail { padding: 1rem; min-height: 0; border-right: 1px solid var(--color-border); display: flex; flex-direction: column; }
.rail-label { font: .9rem var(--font-mono); color: var(--color-text-muted); margin: 0 0 1.5rem .75rem; }
.progress { display: grid; gap: .35rem; font-family: var(--font-sans); font-size: 1rem; text-transform: none; letter-spacing: normal; }
.progress li { display: block; }
.progress li::before { display: none !important; }
.progress-step { display: flex; align-items: center; gap: 1rem; min-height: 48px; width: 100%; padding: .6rem .75rem !important; border-radius: .35rem; text-align: left; }
.progress-step::before { content: attr(data-number); font: .9rem var(--font-mono); opacity: .8; min-width: 1.5rem; }
.progress-step:hover { background: var(--color-elevation); text-decoration: none !important; }
.progress li[aria-current] .progress-step { background: var(--color-components); color: var(--color-base); }
.rail-note { font-size: .9rem; line-height: 1.6; color: var(--color-text-muted); padding: 1.5rem .75rem 0; margin-top: 1.5rem; border-top: 1px solid var(--color-border); }
.stage-region { padding: 1.5rem 2rem; min-width: 0; min-height: 0; height: 100%; }
.stage__eyebrow { font-size: .9rem; text-transform: none; letter-spacing: normal; margin-bottom: 1.2rem; }
.stage__lead { font-size: 1.125rem; line-height: 1.65; max-width: 64ch; margin-bottom: 2rem; }
.stage--orientation { padding-top: .75rem; }
.stage--orientation h1 { max-width: 22ch; }
.stage--orientation .stage__lead { max-width: 55ch; }
.orientation-route { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--color-border-strong); gap: 2rem; }
.orientation-route h2 { font-size: 1.2rem; margin: .7rem 0; }
.orientation-route p { font-size: 1rem; color: var(--color-text-muted); margin: 0; }
.route-number { font: .9rem var(--font-mono); color: var(--color-accent); }
.orientation-note { margin-top: 2rem; font-size: .9rem; color: var(--color-text-muted); max-width: 80ch; }
.btn { min-height: 48px; border-radius: .35rem; }
.btn-row { gap: .8rem; }
.stage > .btn-row:last-child { border-top: 1px solid var(--color-border); padding-top: 1.5rem; }
.stage--orientation > .btn-row { border: none; padding: 0; }
.stage--discipline form { max-width: 65rem; }
.stage--discipline fieldset { border: 0; border-top: 1px solid var(--color-border); padding: 1.5rem 0 0; margin: 2rem 0; min-width: 0; }
.stage--discipline legend { padding: 0 .5rem 0 0; }
.stage--discipline .option-list { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 1rem; }
.option { align-items: center; min-height: 52px; border-color: var(--color-border); background: var(--color-elevation); }
.option--selected, .option:has(input:checked) { border-color: var(--color-accent); box-shadow: inset 0 0 0 1px var(--color-accent); }
.option input { flex: none; margin: 0; }
.method-grid { display: block; border-top: 1px solid var(--color-border-strong); }
.capability-card { display: grid; grid-template-columns: 100px minmax(0, 1fr) auto; gap: .5rem 1.5rem; border: 0; border-bottom: 1px solid var(--color-border); border-radius: 0; padding: 1.6rem 0; background: transparent; cursor: default; }
.capability-card__rank { grid-column: 1; grid-row: 1 / 4; text-transform: none; letter-spacing: normal; padding-top: .35rem; }
.capability-card__name { grid-column: 2; font-size: 1.4rem; }
.capability-card__tagline, .capability-card > .field__hint { grid-column: 2; max-width: 65ch; }
.capability-card .btn-row { grid-column: 3; grid-row: 1 / 4; align-self: center; margin: 0 !important; }
.capability-card .btn { background: transparent; color: var(--color-accent); border: 1px solid var(--color-border-strong); padding: .65rem .9rem; }
.capability-card .btn:hover { background: var(--color-components); color: var(--color-base); }
.stage--pathway .method-grid .capability-card { grid-template-columns: minmax(180px, 1fr) minmax(0, 2fr); }
.stage--pathway .method-grid .capability-card h2 { grid-column: 1; font-size: 1.4rem; }
.stage--pathway .method-grid .capability-card p { grid-column: 2; margin: 0; }
.callout, .flashcard { border-left: 0; }
.reflection-layout { display: grid; grid-template-columns: 185px minmax(0, 1fr); border-top: 1px solid var(--color-border-strong); margin-top: 2rem; }
.reflection-tabs { display: flex; flex-direction: column; gap: .4rem; padding: 1.3rem 1rem 1rem 0; }
.reflection-tab { text-align: left; border: 0; border-radius: .3rem; background: transparent; padding: .85rem; min-height: 48px; cursor: pointer; }
.reflection-tab[aria-selected="true"] { background: var(--color-components); color: var(--color-base); font-weight: 600; }
.reflection-tab:hover:not([aria-selected="true"]) { background: var(--color-elevation); }
.affordance-grid { display: block; margin: 0; padding: 1.5rem 0 0 1.8rem; border-left: 1px solid var(--color-border); }
.affordance-card { border: 0; border-radius: 0; background: transparent; padding: 0; box-shadow: none; }
.affordance-card h3 { font-size: 1.75rem; }
.affordance-card textarea { min-height: 10rem; background: var(--color-elevation); }
.affordance-examples { margin: 1.5rem 0; }
.affordance-examples summary { font: 1rem var(--font-sans); letter-spacing: normal; text-transform: none; padding: .7rem 0; }
.rank-section { border: 0; padding: 0; box-shadow: none; background: transparent; max-width: 55rem; }
.rank-item { min-height: 72px; border-color: var(--color-border); }
.rank-controls .btn-ghost { min-width: 44px; min-height: 44px; }
.toolkit-layout { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 2.5rem; border-top: 1px solid var(--color-border-strong); padding-top: 1.5rem; }
.toolkit-nav { position: sticky; top: 1.5rem; align-self: start; display: grid; gap: .25rem; }
.toolkit-nav button { background: transparent; border: 0; text-align: left; padding: .6rem .5rem; min-height: 44px; cursor: pointer; color: var(--color-text-muted); }
.toolkit-nav button:hover, .toolkit-nav button[aria-current="true"] { color: var(--color-accent); background: var(--color-elevation); }
.toolkit-layout article { min-width: 0; }
.toolkit-layout article section { scroll-margin-top: 2rem; }
.toolkit-layout a { overflow-wrap: anywhere; }
.library-bridge { border-top: 1px solid var(--color-border); margin-top: 2rem; padding-top: 1.5rem; }
.site-footer { padding: .55rem 2rem; font-size: .9rem; }
@media (max-width: 1100px) {
  main { grid-template-columns: 205px minmax(0, 1fr); }
  .stage-region { padding: 2rem; }
  .app-name span { display: none; }
  .capability-card { grid-template-columns: 70px minmax(0, 1fr); }
  .capability-card .btn-row { grid-column: 2; grid-row: auto; margin-top: .5rem !important; justify-self: start; }
  .orientation-route { gap: 1rem; }
}
@media (max-width: 760px) {
  .site-header { padding: .8rem 1rem; gap: .8rem; flex-wrap: wrap; }
  .wordmark-logo { width: 10rem; }
  .app-name { padding-left: .8rem; }
  .library-link { order: 4; width: 100%; margin: 0; }
  .theme-toggle { margin-left: auto; }
  main { display: grid; grid-template-columns: minmax(0,1fr); grid-template-rows: auto minmax(0,1fr); }
  .journey-rail { position: static; min-height: 0; padding: .8rem 1rem; border-right: 0; border-bottom: 1px solid var(--color-border); }
  .rail-label, .rail-note { display: none; }
  .progress { display: flex; flex-wrap: nowrap; overflow-x: auto; gap: .4rem; padding: .2rem; }
  .progress li { flex: none; }
  .progress-step { gap: .5rem; }
  .stage-region { padding: 1rem 1.2rem; }
  .orientation-route { grid-template-columns: 1fr; gap: 1.5rem; }
  .stage--discipline .option-list { grid-template-columns: 1fr; }
  .reflection-layout, .toolkit-layout { display: block; }
  .reflection-tabs { flex-direction: row; flex-wrap: wrap; padding: 1rem 0; }
  .affordance-grid { border: 0; padding: 1rem 0 0; }
  .toolkit-nav { position: static; display: flex; flex-wrap: wrap; margin-bottom: 1.5rem; }
  .capability-card { grid-template-columns: 1fr; gap: .7rem; }
  .capability-card > *, .capability-card .btn-row { grid-column: 1; grid-row: auto; }
  .stage--pathway .method-grid .capability-card { grid-template-columns: 1fr; }
  .stage--pathway .method-grid .capability-card p { grid-column: 1; }
  .site-footer { padding: 1.2rem; }
}