/* DEADWORK — home page only. Loaded after base.css, on index.html alone.
   Fixed, no-scroll "poster" layout at desktop/tablet sizes (>=720w and >=640h); a normal
   stacked, scrolling page below that. See assets/js/home.js for the panel-swap behavior. */

.poster {
  --col-gap: clamp(16px, 2.2vw, 32px);
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 24px var(--gutter) 0;
  position: relative;
}

/* Background footage — real BTS video, dimmed heavily behind everything so text stays readable.
   Fixed behind the viewport in poster mode; an ordinary backdrop in scroll mode. */
.poster-media {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.poster-head, .poster-index, .poster-panel, .poster-foot { position: relative; z-index: 1; }
.poster-media video,
.poster-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}
.poster-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10,10,9,.5) 0%, rgba(10,10,9,.2) 34%, rgba(10,10,9,0) 55%),
    linear-gradient(180deg, rgba(10,10,9,.65) 0%, rgba(10,10,9,.52) 40%, rgba(10,10,9,.7) 100%),
    var(--grain);
  background-size: auto, auto, 180px 180px;
  opacity: 1;
}
.poster-media::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: var(--grain);
  background-size: 180px 180px;
  opacity: 0.05;
  mix-blend-mode: overlay;
}
@media (prefers-reduced-motion: reduce) {
  .poster-media video { display: none; }
}
/* .poster's own children (head/index/panel/foot) already sit in normal flow above this
   fixed, negative-z-index backdrop — no per-child z-index needed. */

.poster-brand img { height: 18px; width: auto; }
.poster-lede { margin-top: 16px; font-size: 16px; line-height: 1.55; color: var(--bone-2); max-width: 40ch; }
.poster-strip { display: none; }

.poster-index { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 32px var(--col-gap); }
.index-label { margin-bottom: 4px; font: 400 11px/1.4 var(--font-mono); letter-spacing: .2em; text-transform: uppercase; color: var(--bone-3); }
.index-word { display: inline-flex; align-items: center; min-height: 44px; font-size: 18px; line-height: 1.3; color: var(--bone); text-decoration: underline 2px transparent; text-underline-offset: 6px; transition: color .15s var(--ease), text-decoration-color .15s var(--ease); }
@media (hover: hover) { .index-word:hover { text-decoration-color: var(--acc); text-decoration-thickness: 1px; } }
.index-word[aria-current] { text-decoration-color: var(--acc); text-decoration-thickness: 2px; }
.poster-index.has-active .index-word:not([aria-current]) { color: var(--bone-2); }

.poster-panel { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); container-type: inline-size; min-width: 0; }
.panel-stack { display: grid; grid-template-columns: minmax(0, 1fr); min-width: 0; }
.panel { grid-area: 1 / 1; visibility: hidden; min-width: 0; }
.panel.is-active { visibility: visible; animation: panel-in .14s var(--ease); }
@keyframes panel-in { from { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .panel.is-active { animation: none; } }
.panel[data-product]::before { content: ''; display: block; width: 48px; height: 2px; background: var(--acc); margin-bottom: 20px; }
.panel-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-bottom: clamp(16px, 3svh, 32px); }
.panel-name { font-size: min(15.5cqi, 16svh); margin-bottom: clamp(16px, 3svh, 32px); }
.panel-headline { font-size: min(12cqi, 14svh); max-width: 14ch; }
.panel-oneliner { font-size: clamp(16px, 1.25vw, 19px); line-height: 1.6; color: rgba(230,224,211,.8); max-width: 52ch; margin-bottom: clamp(24px, 4svh, 40px); }
.panel-email { font-family: var(--font-display); font-size: clamp(22px, 5.2cqi, 48px); line-height: 1.1; text-decoration: none; overflow-wrap: anywhere; display: inline-block; max-width: 100%; margin-bottom: 8px; }

.poster-foot { margin-top: 64px; padding: 24px 0 32px; border-top: 1px solid var(--line); display: grid; gap: 4px; font: 12px/1.5 var(--font-mono); letter-spacing: .2em; text-transform: uppercase; color: var(--bone-3); }
.foot-email { text-transform: none; letter-spacing: .06em; color: var(--bone-2); text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; }
.foot-note { text-align: center; }

.panel-follow { display: block; margin-top: 16px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--bone-2); }
.panel-follow a { color: var(--bone); text-decoration: underline; text-underline-offset: 3px; }
.panel-follow a:hover { color: var(--signal); }

@media (min-width: 720px) { .poster-index { grid-template-columns: repeat(4, 1fr); } }

@media (min-width: 720px) and (min-height: 640px) {
  html, body { height: 100%; overflow: hidden; overscroll-behavior: none; }
  .poster { height: 100vh; height: 100svh; padding: 0 var(--gutter); display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-template-rows: auto minmax(0, 1fr) auto; column-gap: var(--col-gap); }
  .poster-head, .poster-foot { grid-column: 1 / -1; display: grid; grid-template-columns: subgrid; align-items: start; }
  .poster-head { padding-top: clamp(24px, 4svh, 40px); }
  .poster-brand { grid-column: 1 / 5; }
  .poster-lede  { grid-column: 5 / 10; margin: 0; font-size: 15px; max-width: 44ch; }
  .poster-strip { display: block; grid-column: 10 / 13; text-align: right; font: 11px/1.6 var(--font-mono); letter-spacing: .2em; text-transform: uppercase; color: var(--bone-3); }
  .poster-index { grid-column: 1 / 5; grid-row: 2; margin: 0; padding-block: clamp(24px, 5svh, 64px) clamp(24px, 4svh, 40px); display: flex; flex-direction: column; gap: clamp(16px, 3svh, 28px); }
  .index-group--studio { margin-top: auto; }
  .index-word { min-height: 32px; font-size: clamp(18px, 1.5vw, 22px); }
  .poster-panel { grid-column: 5 / 13; grid-row: 2; margin: 0; border: 0; padding-block: clamp(24px, 5svh, 64px) clamp(24px, 4svh, 40px); min-height: 0; overflow-y: auto; scrollbar-width: thin; }
  .poster-foot { grid-row: 3; grid-template-rows: auto auto; row-gap: 10px; margin: 0; padding: 20px 0 24px; }
  .foot-note  { grid-column: 1 / -1; grid-row: 1; }
  .foot-email { grid-column: 1 / 7; grid-row: 2; min-height: 0; }
  .foot-copy  { grid-column: 7 / 13; grid-row: 2; text-align: right; }
}
@media (min-width: 720px) and (max-width: 1023px) and (min-height: 640px) {
  .poster-lede { grid-column: 5 / 13; }
  .poster-strip { display: none; }
}