/* ==========================================================================
   홈 첫 화면 — 큰 메인 하나 + 오른쪽 구역 목록.
   기본은 센터 전경. 구역에 마우스를 올리면(키보드 포커스도 동일) 메인이 그 구역의 사진과 제목으로 바뀐다.
   모션 원칙: transform·opacity·filter(블러 8px 이하)만 / 들어올 때는 강한 ease-out, 나갈 때는 빠르게 /
   호버는 (hover:hover)(pointer:fine) 에서만 / 모션 감소 설정이면 전부 정지.
   터치·좁은 화면은 hover 가 없어 메인은 전경으로 고정하고, 구역을 사진 달린 목록으로 풀어 보여준다.
   ========================================================================== */

html { scroll-behavior: smooth; }

.stage { display: grid; background: var(--bg-band); border-bottom: var(--rule); }

/* "이렇게 진행돼요" — 칸 높이를 줄이고, 01·02·03 은 칸 높이를 꽉 채우는 테두리 숫자(배경) */
.grid--steps > * { min-height: clamp(220px, 21cqi, 300px); }
.grid--steps .cell { position: relative; overflow: hidden; isolation: isolate; justify-content: flex-end; }
.grid--steps .step__no {
  position: absolute; z-index: -1; right: 12px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); font-weight: 900; font-size: clamp(270px, 28.5cqi, 400px); line-height: .8; letter-spacing: -0.06em;
  color: transparent; -webkit-text-stroke: 1.5px rgb(235 166 89 / .45); pointer-events: none; user-select: none;
}
@container (max-width: 760px) {
  .grid--steps > * { min-height: 180px; }
  .grid--steps .step__no { font-size: 230px; -webkit-text-stroke-width: 1.2px; }
}

/* 04 초보자 전용 웨이트룸 — 밝은 방이라 흑백 대신 원래 색, 1.8초마다 하드컷 + 펀치인. 패널이 열려 있을 때만 돈다 */
.roomfx { position: absolute; inset: 0; overflow: hidden; }
.panel__bg .roomfx img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; filter: saturate(1.05) brightness(.8);
  animation: roomcut 10.8s linear infinite; animation-play-state: paused; }
.panel__bg .roomfx img:first-child { opacity: 1; }
.panel.is-active .roomfx img { animation-play-state: running; }
.roomfx img:nth-child(2) { animation-delay: 1.8s; }
.roomfx img:nth-child(3) { animation-delay: 3.6s; }
.roomfx img:nth-child(4) { animation-delay: 5.4s; }
.roomfx img:nth-child(5) { animation-delay: 7.2s; }
.roomfx img:nth-child(6) { animation-delay: 9s; }
@keyframes roomcut {
  0% { opacity: 1; transform: scale(1.16); animation-timing-function: cubic-bezier(.2,.7,.2,1); }
  16.6% { opacity: 1; transform: scale(1); }
  16.7%, 100% { opacity: 0; transform: scale(1); }
}
.zone[data-zone="strength"] .zone__media img { filter: saturate(1.05) brightness(.85); }
/* 03 측정 후 즉시 플랜 제공 — 폰 화면의 주황 포인트가 보이도록 컬러 유지 */
.panel[data-zone="stretch"] .panel__bg img, .zone[data-zone="stretch"] .zone__media img { filter: brightness(.85); }
@media (prefers-reduced-motion: reduce) { .panel__bg .roomfx img { animation: none; } }

.stage__view { position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: var(--bg-band); }
.panel { position: absolute; inset: 0; isolation: isolate; display: flex; flex-direction: column; justify-content: flex-end; gap: .7rem; padding: var(--pad); }
.panel__bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.panel__bg img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.08) brightness(0.5); }
.panel__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgb(10 10 11 / .72), rgb(10 10 11 / 0) 65%); }
.panel:not(.panel--default) { display: none; }

/* 센터 전경 */
.panel--default .panel__bg img { filter: grayscale(1) contrast(1.05) brightness(0.62); }
.spot { position: absolute; left: 0; top: 0; width: 520px; height: 520px; border-radius: 50%; opacity: 0; pointer-events: none; will-change: transform;
  background: radial-gradient(circle, rgb(235 166 89 / .14), rgb(235 166 89 / 0) 65%); transition: opacity .6s var(--ease-out); }


/* 헤드라인 — 줄마다 마스크 안에서 올라온다 */
.line { display: block; overflow: hidden; padding: .08em 0 .14em; margin: -.08em 0 -.14em; }
.line > span { display: block; }

.zones { list-style: none; margin: 0; padding: 0; background: var(--bg); }
.zone { border-top: var(--rule); }
.zone__link { position: relative; display: grid; gap: .5rem; padding: 22px var(--pad) 26px; transition: background-color .2s ease; }
.zone__no { color: var(--accent); }
.zone__media { aspect-ratio: 16 / 9; overflow: hidden; margin-bottom: .4rem; }
.zone__media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.08) brightness(0.85); }
.zone__desc { max-width: 44ch; color: var(--ink-dim); }
.zone__arrow { display: none; color: var(--accent); }
.zone__title { margin: 0; }
.zone__link::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--accent);
  transform: scaleY(0); transform-origin: top; transition: transform .16s ease; }
.zone__link:active { background: var(--bg-hover); }

/* 좁은 화면: 사진 딸린 세로 목록 대신, 같은 테두리 줄 스타일을 2×2 격자로 압축한다.
   5번째(루틴·챌린지)만 맨 아래 얇은 전체 너비 줄로. 메인 바로 아래, 스크롤 없이 다 보이게 —
   각 구역은 첫 탭에 바로 이동한다. */
@media (max-width: 760px) {
  .zones { display: grid; grid-template-columns: 1fr 1fr; }
  .zone__media { display: none; }
  .zone:nth-child(-n+2) { border-top: 0; }
  .zone:nth-child(odd):not(:last-child) { border-right: var(--rule); }
  .zone__link { padding: 16px var(--pad); gap: .3rem; }
  .zone__desc { font-size: .82rem; }

  .zone:last-child { grid-column: 1 / -1; border-right: 0; }
  .zone:last-child .zone__link {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: .85rem;
    padding: 14px var(--pad);
  }
  .zone:last-child .zone__arrow { display: block; color: var(--ink-dim); }
  .zone:last-child .zone__desc { font-size: .85rem; }
}

@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes lineUp { from { transform: translateY(108%); } to { transform: none; } }

@media (prefers-reduced-motion: no-preference) {
  .line > span { animation: lineUp 1s var(--ease-out) backwards; }
  .line:nth-child(1) > span { animation-delay: .08s; }
  .line:nth-child(2) > span { animation-delay: .2s; }

  /* 좁은 화면·터치에서는 화면에 들어올 때 하나씩 (front-v3.js 가 data-reveal 을 붙인다) */
  [data-reveal]:not(.is-in) { opacity: 0; transform: translateY(16px); }
  [data-reveal].is-in { animation: rise .7s var(--ease-out) backwards; animation-delay: var(--d, 0ms); }
}

.btn:active { transform: scale(.97); }

@media (min-width: 761px) and (hover: hover) and (pointer: fine) {
  .stage { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); min-height: max(560px, calc(100svh - var(--head-h))); }
  .stage__view { aspect-ratio: auto; border-right: var(--rule); }
  .stage__view:hover .spot { opacity: 1; }

  /* 패널 전환: 나갈 때는 빠르게, 들어올 때는 길고 부드럽게. 블러가 두 장면의 겹침을 감춘다 */
  .panel, .panel:not(.panel--default) {
    display: flex; padding: 28px var(--pad); pointer-events: none;
    transition: opacity .18s ease, filter .18s ease;
  }
  .panel:not(.panel--default) { opacity: 0; filter: blur(8px); }
  .panel.is-active { opacity: 1; filter: none; transition: opacity .42s var(--ease-out), filter .42s var(--ease-out); }
  .panel--default { pointer-events: auto; }
  .stage.has-active .panel--default { opacity: 0; filter: blur(8px); pointer-events: none; }

  .panel:not(.panel--default) .panel__bg { transform: scale(1.06); transition: transform .9s var(--ease-out); }
  .panel.is-active .panel__bg { transform: none; }

  /* 안쪽 글자는 위로 떠오르며 순서대로 (스태거 50ms) — 나갈 때는 지연 없이 빠르게 */
  .panel:not(.panel--default) > :not(.panel__bg) { opacity: 0; transform: translateY(14px); transition: opacity .14s ease, transform .14s ease; }
  .panel.is-active > :not(.panel__bg) { opacity: 1; transform: none; transition: opacity .42s var(--ease-out), transform .55s var(--ease-out); }
  .panel.is-active > :nth-child(3) { transition-delay: .05s; }

  .zones { display: grid; grid-auto-rows: 1fr; }
  .zone:first-child { border-top: 0; }
  .zone__link { height: 100%; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 1rem; padding: var(--pad); }
  .zone__media { display: none; }
  .zone__arrow { display: block; transition: transform .24s var(--ease-out); }
  .zone__link:is(:hover, :focus-visible) { background: var(--bg-raised); }
  .zone__link:is(:hover, :focus-visible)::after { transform: scaleY(1); }
  .zone__link:is(:hover, :focus-visible) .zone__arrow { transform: translateX(6px); }
  .zone__link:focus-visible { outline-offset: -3px; }

  @media (prefers-reduced-motion: no-preference) {
    .zone__link { animation: rise .7s var(--ease-out) backwards; animation-delay: calc(.2s + var(--i) * 70ms); }
  }
}
@media (prefers-reduced-motion: reduce) {
  .panel:not(.panel--default) { filter: none; }
}

.stage__cut { position: absolute; inset: 0; z-index: 3; pointer-events: none; overflow: hidden; }
.stage__cut::before { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 22%;
  background: linear-gradient(90deg, rgb(235 166 89 / 0), rgb(235 166 89 / .35) 70%, var(--accent-hi) 98%, rgb(235 166 89 / 0));
  transform: translateX(-110%); opacity: 0; }

@media (prefers-reduced-motion: no-preference) {
  /* 흑백 → 컬러: 활성 패널이 서서히 색을 되찾는다 */
  .panel[data-zone] .panel__bg img { transition: filter 1.4s var(--ease-out) .25s; }
  .panel[data-zone].is-active .panel__bg img { filter: grayscale(0) contrast(1.05) brightness(.6) saturate(1.1); }


  .stage__view.is-cut .stage__cut::before { animation: cut .7s cubic-bezier(.7, 0, .2, 1); }
}
@keyframes cut { 0% { transform: translateX(-110%); opacity: 1; } 100% { transform: translateX(560%); opacity: 1; } }


@media (min-width: 761px) and (hover: hover) and (pointer: fine) {
  .zone.is-current .zone__link { background: var(--bg-raised); }
  .zone.is-current .zone__link::after { transform: scaleY(1); }
}

/* ── 2차 초안(2026-09-25): 키네틱 타이포 · 배경 대형 번호 · 측정 그래픽 ── */
.panel[data-zone]::before { content: attr(data-no); position: absolute; right: -.04em; top: 50%; z-index: -1; pointer-events: none;
  font-family: var(--font-display); font-weight: 900; font-size: clamp(12rem, 34cqi, 30rem); line-height: .8; letter-spacing: -.04em;
  color: transparent; -webkit-text-stroke: 1.5px rgb(235 166 89 / .38); transform: translate(0, -50%); opacity: 0; }
.ch { display: inline-block; white-space: pre; }
.panel[data-zone] .panel__bg { z-index: -2; }

.scanfx { position: absolute; inset: 0; pointer-events: none; }
.scanfx__line { position: absolute; left: 0; right: 0; top: 12%; height: 2px; background: var(--accent-hi);
  box-shadow: 0 0 24px 6px rgb(235 166 89 / .45); opacity: 0; }
.scanfx__pulse { position: absolute; left: 34%; right: 3%; top: 30%; height: 96px; overflow: visible; }
.scanfx__pulse path { fill: none; stroke: var(--accent-hi); stroke-width: 2.5; vector-effect: non-scaling-stroke; stroke-linejoin: round;
  stroke-dasharray: 1; stroke-dashoffset: 1; filter: drop-shadow(0 0 6px rgb(235 166 89 / .8)); opacity: 0; }

@media (prefers-reduced-motion: no-preference) {
  /* 글자: 크게·흐리게 들어와 제자리에 박힌다 (글자당 45ms) */
  .panel.is-active .ch { animation: slam .75s cubic-bezier(.2, .9, .1, 1) backwards; animation-delay: calc(.08s + var(--c) * 45ms); }
  /* 배경 번호: 들어오며 천천히 흘러간다 — 장면이 멈춰 있지 않게 */
  .panel[data-zone].is-active::before { animation: ghost 4.2s cubic-bezier(.2, .7, .2, 1) forwards; }
  /* 사진: 켜져 있는 동안 아주 느린 줌 */
  .panel[data-zone].is-active .panel__bg img { animation: kenburns 6s linear forwards; }
  .panel.is-active .scanfx__line { animation: scanY 1.5s cubic-bezier(.65, 0, .35, 1) .3s 2 alternate both; }
  .panel.is-active .scanfx__pulse path { animation: pulseDraw 1.8s cubic-bezier(.4, 0, .2, 1) 1.1s forwards; }
}
@keyframes slam { from { opacity: 0; transform: translateY(35%) scale(1.9); filter: blur(8px); } 60% { opacity: 1; } to { opacity: 1; transform: none; filter: none; } }
@keyframes ghost { from { opacity: 0; transform: translate(12%, -50%); } 20% { opacity: 1; } to { opacity: 1; transform: translate(0, -50%); } }
@keyframes kenburns { from { transform: scale(1); } to { transform: scale(1.08); } }
@keyframes scanY { 0% { opacity: 1; top: 12%; } 100% { opacity: 1; top: 82%; } }
@keyframes pulseDraw { 0% { opacity: 1; stroke-dashoffset: 1; } 100% { opacity: 1; stroke-dashoffset: 0; } }
@media (max-width: 760px) {
  .scanfx__pulse { left: 42%; top: 6%; height: 56px; }
}

/* 2026-09-29 첫 화면 브랜드 필름 루프 — 전경 사진과 같은 흑백 처리 */
.panel--default .panel__bg .hero-loop { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(1) contrast(1.05) brightness(.62); }

/* 트레이너 소개 (2026-10-01) — 홈 '센터 소식' 아래. 폰: 옆으로 넘기는 카드 / PC: 5칸 한 줄 */
.tcards { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(260px, 76%); gap: 12px; margin: 0; padding: 0 var(--pad) 1.5rem; list-style: none; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--pad); -webkit-overflow-scrolling: touch; scrollbar-width: none; border-bottom: var(--rule); }
.tcards::-webkit-scrollbar { display: none; }
.tcard { display: grid; grid-template-rows: auto 1fr; scroll-snap-align: start; border: var(--rule); border-radius: 12px; overflow: hidden; background: var(--bg); }
.tcard__shot { position: relative; margin: 0; aspect-ratio: 4 / 5; overflow: hidden; background: #0b0b0c; }
.tcard__shot img { width: 100%; height: 100%; object-fit: cover; object-position: center top; transition: transform .5s cubic-bezier(0.23, 1, 0.32, 1); }
.tcard__shot::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgb(0 0 0 / .9), rgb(0 0 0 / 0) 46%); }
.tcard__shot figcaption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 1; display: grid; gap: 0.15rem; padding: 1rem 1.1rem 1.1rem; }
.tcard__role { color: #EBA659; font-size: 0.85rem; font-weight: 700; letter-spacing: 0.02em; }
.tcard__name { font-family: var(--font-display); font-size: clamp(1.9rem, 1.4rem + 1.4cqi, 2.4rem); font-weight: 800; line-height: 1; letter-spacing: -0.02em; color: #fff; }
.tcard__body { display: grid; align-content: start; gap: 0.8rem; padding: 1rem 1.1rem 1.15rem; }
.tcard__tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }
.tcard__tags span { padding: 0.3em 0.65em; border: 1px solid color-mix(in srgb, var(--accent-text) 45%, transparent); border-radius: 999px; color: var(--accent-text); font-size: 0.82rem; font-weight: 700; }
.tcard__fit { margin: 0; font-size: 0.95rem; font-weight: 600; line-height: 1.45; word-break: keep-all; }
.tcard__fit span { display: block; margin-bottom: 0.15rem; color: var(--ink-dim); font-size: 0.78rem; font-weight: 700; }
.tcard__certs summary { display: inline-flex; align-items: center; gap: 0.4em; min-height: 40px; color: var(--ink); font-size: 0.875rem; font-weight: 700; cursor: pointer; list-style: none; }
.tcard__certs summary::-webkit-details-marker { display: none; }
.tcard__certs summary::after { content: "+"; display: grid; place-items: center; width: 22px; height: 22px; border: 1px solid var(--rule-color); border-radius: 50%; color: var(--ink-dim); font-size: 0.9rem; line-height: 1; }
.tcard__certs[open] summary::after { content: "−"; }
.tcard__certs ul { display: grid; gap: 0.35rem; margin: 0.2rem 0 0; padding: 0.8rem 0 0; border-top: var(--rule); list-style: none; }
.tcard__certs li { position: relative; padding-left: 0.9rem; color: var(--ink-dim); font-size: 0.85rem; line-height: 1.4; word-break: keep-all; }
.tcard__certs li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }
@media (hover: hover) and (pointer: fine) { .tcard:hover .tcard__shot img { transform: scale(1.04); } }
@media (min-width: 1100px) { .tcards { grid-auto-flow: row; grid-template-columns: repeat(5, minmax(0, 1fr)); overflow: visible; padding-top: 0; } }
@media (prefers-reduced-motion: reduce) { .tcard__shot img { transition: none; } }

/* 라이트 모드 (2026-10-01) — 히어로 패널은 늘 어두운 사진 위라 글자는 밝은 색 그대로 */
:root[data-theme="light"] .panel { color: #F4F2EE; }