/* The Registry (spec 2026-10-25): cover extras, the sticky index bar and the
   chapters. The cover itself is the archetype cover (archetype.css, loaded on
   this template too); only what differs lives here. Tokens from atelier.css. */

/* ---- Cover extras -------------------------------------------------------- */
.rg-split { display: flex; gap: 22px; margin: 0; color: var(--ink-soft); }
.rg-split b { display: block; margin-bottom: 4px; font: 400 30px/1 var(--font-display); letter-spacing: 0; color: var(--ink); }
.rg-cover .ac-cover__plate .ac-tag { top: 44px; }
.rg-cover .ac-cover__plate .ac-tag__thread { height: 0; }
.rg-cover .ac-cover__name { color: var(--paper-raised); text-decoration: none; }
.rg-cover .ac-cover__name:hover,
.rg-cover .ac-cover__name:focus-visible { text-decoration: underline; text-underline-offset: 6px; }

/* ---- Index bar ------------------------------------------------------------ */
/* --rg-top is the condensed header's height, set by registry.js (0 without JS,
   when the desktop header is not condensed). */
.rg-index { position: sticky; top: var(--rg-top, 0px); z-index: 20; background: color-mix(in srgb, var(--paper) 94%, transparent); backdrop-filter: blur(6px); border-block: var(--hair); }
.rg-index__bar { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; grid-template-areas: "status file count" "where where where"; align-items: center; gap: 10px 28px; padding-block: 12px; }
.rg-index__group--status { grid-area: status; }
.rg-index__group--where { grid-area: where; }
.rg-file { grid-area: file; justify-self: end; }
.rg-index__count { grid-area: count; }
.rg-index__group { display: flex; align-items: center; gap: 4px 14px; min-width: 0; }
.rg-index__label { margin-right: 4px; color: var(--ink-faint); }
.rg-index__scroll { display: flex; gap: 4px 16px; min-width: 0; padding-right: 40px; overflow-x: auto; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, #000 85%, transparent); mask-image: linear-gradient(90deg, #000 85%, transparent); }
.rg-index__scroll::-webkit-scrollbar { display: none; }
.rg-chip { flex: none; padding: 6px 0; border-bottom: 1px solid transparent; color: var(--ink-soft); text-decoration: none; }
.rg-chip[aria-current="true"] { border-bottom-color: var(--ink); color: var(--ink); }
.rg-chip:hover { color: var(--ink); }
.rg-chip__n { margin-left: 2px; font-size: 8.5px; color: var(--ink-faint); }
.rg-file { display: flex; align-items: center; gap: 8px; min-width: 0; margin: 0; }
.rg-select { appearance: none; padding: 9px 30px 9px 12px; border: var(--hair); background: var(--paper-raised) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%2314100D'/%3E%3C/svg%3E") no-repeat right 10px center; color: var(--ink); cursor: pointer; }
.rg-file__go { padding: 9px 12px; border: var(--hair); background: none; color: var(--ink); cursor: pointer; }
.rg-index__count { margin: 0; white-space: nowrap; font-variant-numeric: tabular-nums; }
.rg-index__count b { margin-right: 6px; font: 400 22px/1 var(--font-display); letter-spacing: 0; }
.rg-chip:focus-visible,
.rg-select:focus-visible,
.rg-file__go:focus-visible,
.rg-subject a:focus-visible { outline: 2px solid var(--wine); outline-offset: 3px; }

/* ---- Chapters ------------------------------------------------------------- */
.rg-chapters [hidden] { display: none !important; }
.rg-chapter { padding-block: clamp(48px, 6vw, 80px); }
/* Below the first chapter, skip layout and paint until near the screen. The
   intrinsic size is a typical chapter, so the scrollbar stays honest. */
.rg-chapter + .rg-chapter { content-visibility: auto; contain-intrinsic-size: auto 1600px; }
.rg-chapter__head { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: end; gap: 10px 28px; padding-bottom: 18px; border-bottom: var(--hair-double); }
.rg-chapter__num { font: 400 clamp(64px, 8vw, 112px)/.8 var(--font-display); color: var(--gold); }
.rg-chapter__title { margin: 0; font: 400 clamp(40px, 5.6vw, 84px)/.95 var(--font-display); letter-spacing: -.01em; text-wrap: balance; }
.rg-chapter__meta { margin: 0; color: var(--ink-soft); text-align: right; }

.rg-tier { margin-top: 44px; }
.rg-tier__head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 22px; }
.rg-tier__title { margin: 0; font: italic 400 26px/1 var(--font-display); }
.rg-tier__rule { flex: 1; border-top: var(--hair); }
.rg-tier__n { color: var(--ink-faint); }

.rg-lineup { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); align-items: start; gap: 40px 20px; }
.rg-lineup--sovereign { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 48px 32px; }

.rg-subject { position: relative; min-width: 0; }
.rg-subject__link { display: block; color: inherit; text-decoration: none; }
.rg-subject__frame { position: relative; display: block; overflow: hidden; aspect-ratio: 4 / 5.2; background: #0c0a09; }
.rg-subject__frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 8%; transition: opacity var(--dur-base) var(--ease-couture), transform var(--dur-slow) var(--ease-couture); }
.rg-subject__hover { opacity: 0; }
.rg-subject__link:hover .rg-subject__hover,
.rg-subject__link:focus-visible .rg-subject__hover { opacity: 1; }
.rg-subject__link:hover .rg-subject__img { transform: scale(1.03); }
.rg-subject.is-former .rg-subject__img { filter: grayscale(.25); }
.rg-subject__mono { position: absolute; inset: 0; display: grid; place-items: center; background: var(--paper-deep); font: 400 clamp(36px, 5vw, 64px)/1 var(--font-display); color: var(--ink-faint); }
.rg-subject .ac-tag { --ac-tag-w: 92px; right: 8px; }
.rg-lineup--sovereign .rg-subject .ac-tag { --ac-tag-w: 112px; right: 10px; }
.rg-tag__former { display: block; margin-top: 4px; font: italic 400 14px/1 var(--font-display); color: var(--wine); }
.rg-subject__name { margin: 14px 0 6px; font: 400 21px/1.15 var(--font-display); text-wrap: balance; }
.rg-lineup--sovereign .rg-subject__name { font-size: 30px; }
.rg-subject__arch { color: var(--gold); text-decoration: none; }
.rg-subject__arch:hover { text-decoration: underline; text-underline-offset: 4px; }

.rg-next { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 16px; margin: 64px 0 0; padding-top: 22px; border-top: var(--hair); color: var(--ink-soft); }
.rg-next a { font: italic 400 30px/1 var(--font-display); letter-spacing: 0; text-transform: none; color: var(--ink); text-decoration: none; }
.rg-empty { margin: 48px auto; max-width: var(--wide); padding-inline: var(--gutter); font: italic 400 22px/1.4 var(--font-display); color: var(--ink-soft); }

/* ---- Phone ----------------------------------------------------------------- */
@media (max-width: 860px) {
	.rg-index__bar { grid-template-columns: minmax(0, 1fr) auto; grid-template-areas: "status status" "file count" "where where"; gap: 8px 16px; }
	.rg-file .rg-index__label { display: none; }
	.rg-file { justify-self: stretch; }
	.rg-select { flex: 1; min-width: 0; }
	.rg-index__group--where .rg-index__label { display: none; }
	.rg-chapter__head { grid-template-columns: auto minmax(0, 1fr); }
	.rg-chapter__meta { grid-column: 1 / -1; text-align: left; }
}
@media (max-width: 699px) {
	.rg-lineup,
	.rg-lineup--sovereign { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 14px; }
	.rg-lineup--sovereign .rg-subject:first-child { grid-column: 1 / -1; }
	.rg-lineup--sovereign .rg-subject__name { font-size: 24px; }
	.rg-subject__name { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
	.rg-subject__frame img { transition: none; }
	.rg-subject__link:hover .rg-subject__img { transform: none; }
}