.concept-layout { display: grid; grid-template-columns: 216px minmax(0, 1fr); grid-template-areas: ". heading" "projects artwork"; column-gap: 32px; align-items: start; }
.concept-heading { grid-area: heading; }
.concept-projects { grid-area: projects; min-width: 0; }
.concept-project { grid-area: artwork; min-width: 0; scroll-margin-top: 24px; }
.concept-project-list { max-height: min(720px, 75svh); margin: 0; padding: 3px; overflow-y: auto; overflow-x: hidden; overscroll-behavior-y: contain; scrollbar-width: thin; scrollbar-color: var(--accent) var(--paper); list-style: none; }
.concept-project-list:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.concept-project-list li + li { margin-top: 14px; }
.concept-project-link { display: block; overflow: hidden; border: 1px solid var(--line); border-left: 3px solid transparent; color: var(--muted); text-decoration: none; }
.concept-project-link:hover { border-color: var(--accent); color: var(--ink); }
.concept-project-link[aria-current="true"] { border-color: var(--accent); background: #252c28; color: var(--ink); }
.concept-project-link:focus-visible { outline-offset: -3px; }
.concept-project-name { display: block; padding: 14px 12px 0; font-size: 18px; line-height: 1.3; }
.concept-project-meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: end; gap: 8px; margin: 12px; }
.concept-project-meta dl, .concept-project-meta p { margin: 0; }
.concept-project-meta p { font-size: 12px; line-height: 1.5; }
.concept-project-meta dt { font-size: 10px; }
.concept-project-meta dd { margin-top: 3px; font-size: 12px; line-height: 1.5; }
.concept-project-link img { width: 100%; aspect-ratio: 1600 / 786; object-fit: cover; }
.concept-heading { padding-block: 38px 28px; }
.concept-heading h1 { max-width: 1000px; }
.concept-hero img { width: 100%; height: auto; }
.concept-hero .image-link, .concept-process-panel .image-link { background: #08090a; }
.concept-brief { padding-block: 42px 48px; }
.concept-brief h2 { font-size: 22px; }
.concept-brief p:last-child { max-width: 740px; margin-bottom: 0; color: var(--muted); }
.concept-process { padding-block: 38px 64px; border-top: 1px solid var(--line); }
.concept-process .section-intro { margin-bottom: 26px; }
.concept-tabs { display: flex; gap: 12px; margin-bottom: 28px; }
.concept-tabs[hidden], .concept-process-panel[hidden] { display: none; }
.concept-tabs button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-width: 0; min-height: 52px; padding: 13px 18px; border: 1px solid var(--line); border-radius: 3px; background: #262829; color: var(--muted); font: inherit; font-size: 14px; line-height: 1.5; text-align: left; cursor: pointer; }
.concept-tabs button:hover { border-color: var(--accent); color: var(--ink); }
.concept-tabs button[aria-selected="true"] { border-color: var(--accent); background: var(--accent); color: #17231e; font-weight: 700; }
.concept-tabs button svg { width: 20px; height: 20px; flex-shrink: 0; }
.concept-stage-copy { max-width: 780px; margin-bottom: 22px; }
.concept-stage-copy h3 { margin-bottom: 8px; font-size: 19px; }
.concept-stage-copy p { margin: 0; color: var(--muted); font-size: 15px; }
.concept-process-panel figure { max-width: 1200px; margin-inline: auto; }
.concept-process-panel + .concept-process-panel { margin-top: 36px; }
.concept-process.is-enhanced .concept-process-panel + .concept-process-panel { margin-top: 0; }
.concept-process.is-enhanced .concept-process-panel:not([hidden]) { animation: concept-stage-in 180ms ease-out; }
.concept-process-panel:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
@keyframes concept-stage-in { from { opacity: .75; transform: translateY(3px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 900px) {
  .concept-layout { grid-template-columns: 190px minmax(0, 1fr); column-gap: 24px; }
  .concept-project-name { font-size: 16px; }
  .concept-brief h2 { font-size: 20px; }
}
@media (max-width: 700px) {
  .concept-layout { grid-template-columns: minmax(0, 1fr); grid-template-areas: "heading" "projects" "artwork"; }
  .concept-projects { margin-bottom: 24px; }
  .concept-project-list { max-height: 300px; }
  .concept-project-link { display: grid; grid-template-columns: minmax(0, 1fr) 112px; align-items: center; }
  .concept-project-name { grid-column: 1; padding: 12px 12px 0; }
  .concept-project-meta { grid-column: 1; margin: 8px 12px 12px; }
  .concept-project-link img { grid-column: 2; grid-row: 1 / 3; height: 100%; aspect-ratio: auto; object-fit: cover; }
  .concept-heading { padding-block: 30px 24px; }
  .concept-brief { padding-block: 30px 36px; }
  .concept-process { padding-block: 30px 42px; }
  .concept-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-bottom: 24px; }
  .concept-tabs button { gap: 8px; padding-inline: 10px; font-size: 13px; }
  .concept-tabs button svg { width: 18px; height: 18px; }
}
@media (max-width: 380px) {
  .concept-project-link { grid-template-columns: minmax(0, 1fr) 82px; }
  .concept-project-name { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  .concept-process.is-enhanced .concept-process-panel:not([hidden]) { animation: none; }
}