/* 브랜드 탭(2026-11-11): 첫 장면 「도어의 기준, 문장군.」이 스크롤로 좌우로 갈라지며 그 자리에서
   스크롤 영상이 이어진다. 영상 뒤는 검은 화면의 문 하나 → 문이 열리며 실제 시공 사진이 쏟아진다.
   색은 account.css :root의 --mg-* 이름만 쓴다. */

/* ---------- 첫 장면: 갈라지는 문 ---------- */
.world-lead { height: 85vh; }
.brand-opening {
  --e: calc(var(--open, 0) * (2 - var(--open, 0)));
  position: absolute;
  inset: 0;
  z-index: 6;
  pointer-events: none;
}
.brand-opened .brand-opening { visibility: hidden; }
.brand-opening__leaf {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  overflow: hidden;
  background: var(--mg-black);
  will-change: transform;
}
.brand-opening__leaf--left { left: 0; transform: translate3d(calc(-101% * var(--e)), 0, 0); }
.brand-opening__leaf--right { right: 0; transform: translate3d(calc(101% * var(--e)), 0, 0); }
.brand-opening__leaf::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(transparent, color-mix(in srgb,var(--mg-white) 70%,transparent) 35% 65%, transparent);
  box-shadow: 0 0 24px 2px color-mix(in srgb,var(--mg-white) 22%,transparent);
  opacity: calc(1 - var(--open, 0) * 2.5);
}
.brand-opening__leaf--left::after { right: 0; }
.brand-opening__leaf--right::after { left: 0; }
.brand-opening__line {
  position: absolute;
  top: 50%;
  width: 200%;
  margin: 0;
  transform: translateY(-50%);
  font-family: var(--mg-font);
  font-size: clamp(44px, 7.2vw, 112px);
  font-weight: var(--mg-weight-heavy);
  line-height: 1.06;
  letter-spacing: -0.05em;
  text-align: center;
  color: var(--mg-white);
  word-break: keep-all;
}
.brand-opening__leaf--left .brand-opening__line { left: 0; }
.brand-opening__leaf--right .brand-opening__line { right: 0; }
.brand-opening__line::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 0.5em auto 0;
  background: var(--mg-red);
}
/* 문이 열리는 동안 영상이 살짝 다가오고, 01 장면 글씨는 문이 거의 열렸을 때 나타난다. */
.world-stage .scroll-film-shell { transform: scale(calc(1.08 - 0.08 * var(--open, 1))); }
.world-stage .scene[data-scene="0"] .scene-copy { opacity: clamp(0, calc((var(--open, 1) - 0.72) * 3.6), 1) !important; }
body:not(.brand-opened) .chapter-rail { opacity: 0; pointer-events: none; }
.chapter-rail { transition: opacity var(--mg-dur-slow) var(--mg-ease); }

@media (max-width: 1100px) { .world-lead { height: 70vh; } }
@media (prefers-reduced-motion: reduce) {
  .world-lead { height: 0; }
  .brand-opening { display: none; }
}
.no-js .world-lead, .no-js .brand-opening { display: none; }

/* ---------- 06 장면 버튼: 예약 탭과 같은 붉은 「무료 방문상담 신청」 ---------- */
.user-concept .scene--final .primary-cta {
  border-color: var(--mg-red);
  border-radius: var(--mg-radius-pill);
  background: var(--mg-red);
  color: var(--mg-white);
  font-weight: var(--mg-weight-bold);
}
.user-concept .scene--final .primary-cta:hover,
.user-concept .scene--final .primary-cta:focus-visible { background: var(--mg-red-strong); color: var(--mg-white); }
.user-concept .scene--final .primary-cta span { color: var(--mg-white); }

/* ---------- 마무리: 문 너머, 진짜 집 ---------- */
.brand-door {
  position: relative;
  background: var(--mg-black);
  color: var(--mg-white);
  font-family: var(--mg-font);
}
.brand-door__pin { position: relative; height: 240vh; }
.brand-door__stage {
  --e: var(--p, 0);
  --dw: 25vw;
  --dh: 64%;
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.brand-door__frame {
  position: absolute;
  left: 50%;
  top: 50%;
  width: calc(var(--dw) + (100% - var(--dw)) * var(--e));
  height: calc(var(--dh) + (100% - var(--dh)) * var(--e));
  transform: translate(-50%, -50%);
  overflow: hidden;
  border-radius: calc(var(--mg-radius-sm) * (1 - var(--e)));
  background: var(--mg-black);
  box-shadow: 0 0 0 1px color-mix(in srgb,var(--mg-white) 22%,transparent), 0 0 120px color-mix(in srgb,var(--mg-white) 12%,transparent);
}
.brand-door__wall {
  --cols: 8;
  --gap: 6px;
  position: absolute;
  inset: -4%;
  background: var(--mg-black);
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  gap: var(--gap);
  transform: scale(calc(1.5 - 0.5 * var(--e)));
  opacity: 0;
  transition: opacity var(--mg-dur-slow) var(--mg-ease);
}
.brand-door__wall.is-ready { opacity: 1; }
.brand-door__col {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  animation: brand-door-flow var(--t, 52s) linear infinite;
  animation-play-state: paused;
}
.brand-door__col:nth-child(even) { animation-direction: reverse; }
.brand-door.is-live .brand-door__col { animation-play-state: running; }
.brand-door.is-paused .brand-door__col { animation-play-state: paused; }
.brand-door__col a { display: block; border-radius: var(--mg-radius-sm); overflow: hidden; }
.brand-door__col img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--mg-black-3);
  filter: contrast(1.06) saturate(1.1);
}
.brand-door__col a:focus-visible { outline: 2px solid var(--mg-red); outline-offset: -2px; }
@keyframes brand-door-flow { from { transform: translateY(0); } to { transform: translateY(-50%); } }
.brand-door__shade {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 48%, color-mix(in srgb,var(--mg-black) calc(15% + 50% * var(--e)),transparent) 0, color-mix(in srgb,var(--mg-black) calc(10% * var(--e)),transparent) 60%);
}
.brand-door__copy {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  text-align: center;
  pointer-events: none;
  transform: translateY(calc(-38vh * (1 - var(--e))));
}
.brand-door__kicker {
  margin: 0 0 14px;
  font-size: var(--mg-fs-sm);
  font-weight: var(--mg-weight-medium);
  letter-spacing: 0.2em;
  color: color-mix(in srgb,var(--mg-white) 72%,transparent);
}
.brand-door h2 {
  margin: 0;
  font-size: calc(34px + 34px * var(--e));
  font-weight: var(--mg-weight-bold);
  line-height: 1.12;
  letter-spacing: -0.04em;
  color: var(--mg-white);
  text-shadow: 0 4px 30px color-mix(in srgb,var(--mg-black) 60%,transparent);
}
.brand-door h2 em { font-style: normal; color: var(--mg-red); }
.brand-door .mobile-break { display: none; }
.brand-door__actions {
  --show: clamp(0, calc((var(--e) - 0.62) * 4), 1);
  /* 제목만 가운데에 두고, 버튼은 제목 아래에 붙여 나타나게 한다(자리를 미리 차지하지 않음). */
  position: absolute;
  top: 100%;
  left: 50%;
  width: max-content;
  display: flex;
  justify-content: center;
  gap: var(--mg-space-12);
  margin-top: var(--mg-space-40);
  opacity: var(--show);
  transform: translate(-50%, calc(24px * (1 - var(--show))));
  visibility: hidden;
}
.brand-door.is-open .brand-door__actions { visibility: visible; pointer-events: auto; }
.brand-door__actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 26px;
  border-radius: var(--mg-radius-pill);
  font-size: var(--mg-fs-md);
  font-weight: var(--mg-weight-bold);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--mg-dur-fast) var(--mg-ease), background-color var(--mg-dur-fast) var(--mg-ease);
}
.brand-door__actions a:active { transform: var(--mg-press, scale(.97)); }
.brand-door__actions a:focus-visible { outline: 2px solid var(--mg-white); outline-offset: 3px; }
.brand-door__actions svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.brand-door__showroom {
  border: 1px solid color-mix(in srgb,var(--mg-white) 34%,transparent);
  background: color-mix(in srgb,var(--mg-black) 40%,transparent);
  color: var(--mg-white);
  backdrop-filter: blur(10px);
}
.brand-door__showroom:hover { background: color-mix(in srgb,var(--mg-black) 60%,transparent); }
.brand-door__apply { background: var(--mg-red); color: var(--mg-white); }
.brand-door__apply:hover { background: var(--mg-red-strong); }
.brand-door__pause {
  font: inherit;
  position: absolute;
  z-index: 3;
  left: max(16px, env(safe-area-inset-left, 0px));
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid color-mix(in srgb,var(--mg-white) 30%,transparent);
  border-radius: 50%;
  background: color-mix(in srgb,var(--mg-black) 50%,transparent);
  color: var(--mg-white);
  cursor: pointer;
  opacity: var(--show-pause, 0);
}
.brand-door.is-open .brand-door__pause { --show-pause: 1; }
.brand-door__pause svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; }
.brand-door__pause:focus-visible { outline: 2px solid var(--mg-white); outline-offset: 3px; }
.brand-door__signature {
  margin: 0;
  padding: var(--mg-space-40) 16px var(--mg-space-64);
  font-size: var(--mg-fs-xs);
  font-weight: var(--mg-weight-medium);
  letter-spacing: 0.32em;
  text-align: center;
  color: color-mix(in srgb,var(--mg-white) 50%,transparent);
}

@media (max-width: 1100px) {
  .brand-door__wall { --cols: 5; }
  .brand-door__stage { --dw: 40vw; --dh: 56%; }
}
@media (max-width: 767px) {
  .brand-door__pin { height: 220vh; }
  .brand-door__wall { --cols: 3; --gap: 4px; }
  .brand-door__stage { --dw: 58vw; --dh: 50%; }
  .brand-door__copy { transform: translateY(calc(-34vh * (1 - var(--e)))); }
  .brand-door h2 { font-size: calc(30px + 16px * var(--e)); }
  .brand-door .mobile-break { display: block; }
  .brand-door__actions { flex-direction: column; align-items: center; gap: var(--mg-space-10); margin-top: var(--mg-space-28); }
  .brand-door__actions a { width: 236px; }
}
@media (prefers-reduced-motion: reduce) {
  .brand-door__col { animation: none; }
  .brand-door__pause { display: none; }
}