/* ============================================================
   apps.css — /apps (오너플로우 Apps) 전용
   모든 선택자는 .oa- 프리픽스 안에 둔다. 전역 선택자를 건드리지 않는다.
   기본 상태(= JS 없음, reduced-motion) 가 곧 모션의 "완료 장면"이다.
   모션은 .oa-js 가 붙은 뒤에만 시작 상태로 바뀐다.
   ============================================================ */

.oa-page {
   --oa-black: #000000;
   --oa-ink: #1d1d1f;
   --oa-ink-sec: #6e6e73;
   --oa-ink-mute: #a1a1a6;
   --oa-white: #ffffff;
   --oa-surface: #f5f5f7;
   --oa-line: rgba(0, 0, 0, 0.12);
   --oa-line-dark: rgba(255, 255, 255, 0.16);
   --oa-on-dark: #f5f5f7;
   --oa-on-dark-sec: #a1a1a6;
   --oa-accent: #463eea;
   --oa-accent-dark: #362eca;
   --oa-accent-on-dark: #8f89ff;
   --oa-ease: cubic-bezier(0.22, 1, 0.36, 1);
   --oa-shell: 1180px;
   --oa-gutter: max(24px, calc((100% - 1180px) / 2));
   --oa-space: 144px;
   --oa-header: 72px;

   display: block;
   background: var(--oa-white);
   color: var(--oa-ink);
   font-family: Pretendard, 'Noto Sans KR', system-ui, -apple-system, sans-serif;
   word-break: keep-all;
   overflow-wrap: break-word;
   overflow-x: clip;
   letter-spacing: -0.015em;
}

.oa-page *,
.oa-page *::before,
.oa-page *::after {
   box-sizing: border-box;
}

.oa-page p,
.oa-page h1,
.oa-page h2,
.oa-page h3,
.oa-page ol,
.oa-page ul,
.oa-page figure {
   margin: 0;
   padding: 0;
}

.oa-page ol,
.oa-page ul {
   list-style: none;
}

.oa-page img {
   display: block;
   max-width: 100%;
   height: auto;
}

.oa-shell {
   width: 100%;
   padding-inline: var(--oa-gutter);
}

.oa-sr {
   position: absolute !important;
   width: 1px;
   height: 1px;
   padding: 0;
   margin: -1px;
   overflow: hidden;
   clip: rect(0 0 0 0);
   white-space: nowrap;
   border: 0;
}

.oa-page a:focus-visible,
.oa-page button:focus-visible {
   outline: 3px solid var(--oa-accent);
   outline-offset: 3px;
   border-radius: 12px;
}

.oa-hero a:focus-visible,
.oa-hero button:focus-visible,
.oa-cur a:focus-visible,
.oa-cur button:focus-visible,
.oa-final a:focus-visible {
   outline-color: var(--oa-accent-on-dark);
}

/* ── TIP 서브탭 (newsletter.css 의 .nl-subnav 재사용, 여백만 조정) ── */
.oa-page .oa-subnav {
   margin: 0 auto;
   padding: 28px 24px;
}

/* ── 공통 타이포 ─────────────────────────────── */
.oa-eyebrow {
   margin-bottom: 20px !important;
   color: var(--oa-accent);
   font-size: 15px;
   font-weight: 700;
   letter-spacing: 0;
}

.oa-eyebrow--dark {
   color: var(--oa-accent-on-dark);
}

.oa-h2 {
   max-width: 1000px;
   color: var(--oa-ink);
   font-size: clamp(2.2rem, 4.2vw, 3.5rem);
   font-weight: 700;
   line-height: 1.14;
   letter-spacing: -0.04em;
}

.oa-h2--dark {
   color: var(--oa-on-dark);
}

.oa-lead {
   max-width: 720px;
   margin-top: 28px !important;
   color: var(--oa-ink-sec);
   font-size: clamp(1.06rem, 1.4vw, 1.3rem);
   font-weight: 500;
   line-height: 1.65;
}

.oa-lead--dark {
   color: var(--oa-on-dark-sec);
}

/* ── 버튼 · 링크 ─────────────────────────────── */
.oa-btn {
   display: inline-flex;
   align-items: center;
   justify-content: center;
   min-height: 48px;
   padding: 0 26px;
   border-radius: 999px;
   font-size: 16px;
   font-weight: 700;
   text-decoration: none;
   transition:
      background-color 0.2s ease,
      color 0.2s ease;
}

.oa-btn--primary {
   background: var(--oa-accent);
   color: var(--oa-white);
}

.oa-btn--primary:hover {
   background: var(--oa-accent-dark);
   color: var(--oa-white);
}

.oa-btn--light {
   background: var(--oa-white);
   color: var(--oa-ink);
}

.oa-btn--light:hover {
   background: #e8e8ed;
   color: var(--oa-ink);
}

.oa-link {
   display: inline-flex;
   align-items: center;
   min-height: 48px;
   color: var(--oa-accent);
   font-size: 16px;
   font-weight: 700;
   text-decoration: none;
}

.oa-link:hover {
   color: var(--oa-accent-dark);
   text-decoration: underline;
   text-underline-offset: 4px;
}

.oa-source {
   color: var(--oa-ink-sec);
   font-size: 13px;
   line-height: 1.5;
}

.oa-source--dark {
   color: var(--oa-on-dark-sec);
}

.oa-appfoot {
   display: flex;
   flex-wrap: wrap;
   align-items: center;
   justify-content: space-between;
   gap: 20px 32px;
   margin-top: 64px;
}

.oa-br-pc {
   display: inline;
}

.oa-br-m {
   display: none;
}

/* ── 모션 컨트롤 (일시정지 / 다시보기) ─────────── */
.oa-ctrl {
   display: flex;
   gap: 8px;
}

.oa-ctrl[hidden] {
   display: none;
}

.oa-ctrl__btn {
   min-height: 36px;
   padding: 0 16px;
   border: 1px solid var(--oa-line);
   border-radius: 999px;
   background: transparent;
   color: var(--oa-ink-sec);
   font: inherit;
   font-size: 13px;
   font-weight: 600;
   cursor: pointer;
}

.oa-ctrl--dark .oa-ctrl__btn {
   border-color: var(--oa-line-dark);
   color: var(--oa-on-dark-sec);
}

.oa-ctrl__btn:hover {
   color: var(--oa-accent-on-dark);
   border-color: currentColor;
}

/* ════════════════════════════════════════════
   ① Hero
   ════════════════════════════════════════════ */
.oa-hero {
   padding: 72px 0 96px;
   background: var(--oa-black);
   color: var(--oa-on-dark);
}

.oa-hero__title {
   color: var(--oa-on-dark);
   font-size: clamp(2.6rem, 5.4vw, 4.8rem);
   font-weight: 800;
   line-height: 1.06;
   letter-spacing: -0.045em;
}

.oa-hero__desc {
   max-width: 720px;
   margin-top: 28px !important;
   color: var(--oa-on-dark-sec);
   font-size: clamp(1.1rem, 1.7vw, 1.5rem);
   font-weight: 600;
   line-height: 1.5;
}

.oa-hero__stage {
   position: relative;
   margin-top: 56px;
}

.oa-hero__groups {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 20px;
}

.oa-hero__group {
   position: relative;
   padding: 32px;
}

/* 제품 경계 (정리된 뒤 나타나는 틀) */
.oa-hero__group::before {
   content: '';
   position: absolute;
   inset: 0;
   border: 1px solid var(--oa-line-dark);
   border-radius: 28px;
   background: rgba(255, 255, 255, 0.04);
}

.oa-hero__group[data-group='b']::before {
   border-color: rgba(143, 137, 255, 0.55);
}

.oa-hero__product {
   position: relative;
   display: block;
   margin-bottom: 24px;
   color: var(--oa-on-dark);
   font-size: clamp(1.4rem, 2.4vw, 2rem);
   font-weight: 700;
   letter-spacing: -0.03em;
}

.oa-hero__group[data-group='b'] .oa-hero__product {
   color: var(--oa-accent-on-dark);
}

.oa-hero__tasks {
   position: relative;
   display: flex;
   flex-wrap: wrap;
   gap: 10px;
}

.oa-hero__tasks li {
   padding: 10px 16px;
   border: 1px solid var(--oa-line-dark);
   border-radius: 999px;
   background: #1d1d1f;
   color: var(--oa-on-dark);
   font-size: 15px;
   font-weight: 600;
   white-space: nowrap;
}

.oa-hero__lines {
   grid-column: 1 / -1;
   display: flex;
   flex-direction: column;
   align-items: center;
}

/* 두 제품 가운데에서 내려와 하나로 모이는 선 */
.oa-hero__bracket {
   width: 50%;
   height: 28px;
   border: 1.5px solid rgba(255, 255, 255, 0.35);
   border-top: 0;
   border-radius: 0 0 20px 20px;
}

.oa-hero__stem {
   width: 1.5px;
   height: 28px;
   margin-bottom: 20px;
   background: rgba(255, 255, 255, 0.35);
}

.oa-hero__mark {
   grid-column: 1 / -1;
   color: var(--oa-on-dark);
   font-size: clamp(1.6rem, 4.4vw, 3.6rem);
   font-weight: 800;
   letter-spacing: 0.28em;
   text-align: center;
   /* letter-spacing 이 끝 글자 뒤에도 붙으므로 시각 중심을 맞춘다 */
   text-indent: 0.28em;
}

.oa-hero__stage .oa-ctrl {
   justify-content: center;
   margin-top: 32px;
}

/* 모션 — .oa-js 에서만. 시간축:
   0~1.2s 흩어진 운영 작업 등장 → 1.2~2.8s 머묾 → 2.8~4.4s 제품별로 모임
   → 3.9~4.8s 제품 경계·이름 → 4.8~5.7s 연결선 → 5.6~6.6s OWNERFLOW APPS */
.oa-js .oa-hero__stage.is-playing .oa-hero__tasks li {
   animation: oa-gather 4.4s var(--oa-ease) calc(var(--o) * 90ms) both;
}

.oa-js .oa-hero__stage.is-playing .oa-hero__group::before {
   animation: oa-fade 0.9s ease 3.9s both;
}

.oa-js .oa-hero__stage.is-playing .oa-hero__product {
   animation: oa-rise 0.8s var(--oa-ease) 4.1s both;
}

.oa-js .oa-hero__stage.is-playing .oa-hero__lines {
   animation: oa-draw 0.9s ease-in-out 4.8s both;
}

.oa-js .oa-hero__stage.is-playing .oa-hero__mark {
   animation: oa-mark 1s var(--oa-ease) 5.6s both;
}

.oa-hero__stage.is-paused *,
.oa-hero__stage.is-paused *::before {
   animation-play-state: paused !important;
}

@keyframes oa-gather {
   0% {
      opacity: 0;
      filter: blur(8px);
      transform: translate(calc(var(--dx) * 0.3vw), calc(var(--dy) * 0.18vw)) rotate(calc(var(--r) * 1deg)) scale(0.92);
   }
   22% {
      opacity: 1;
      filter: blur(0);
      transform: translate(calc(var(--dx) * 0.3vw), calc(var(--dy) * 0.18vw)) rotate(calc(var(--r) * 1deg));
   }
   58% {
      transform: translate(calc(var(--dx) * 0.27vw), calc(var(--dy) * 0.16vw)) rotate(calc(var(--r) * 0.8deg));
   }
   100% {
      opacity: 1;
      filter: blur(0);
      transform: none;
   }
}

@keyframes oa-fade {
   from {
      opacity: 0;
      transform: scale(0.97);
   }
   to {
      opacity: 1;
      transform: none;
   }
}

@keyframes oa-rise {
   from {
      opacity: 0;
      transform: translateY(14px);
   }
   to {
      opacity: 1;
      transform: none;
   }
}

@keyframes oa-draw {
   from {
      clip-path: inset(0 0 100% 0);
   }
   to {
      clip-path: inset(0 0 0 0);
   }
}

@keyframes oa-mark {
   from {
      opacity: 0;
      filter: blur(10px);
      letter-spacing: 0.6em;
   }
   to {
      opacity: 1;
      filter: blur(0);
      letter-spacing: 0.28em;
   }
}

/* ════════════════════════════════════════════
   ② Why / ⑥ Philosophy
   ════════════════════════════════════════════ */
.oa-why {
   padding: var(--oa-space) 0;
   background: var(--oa-white);
}

.oa-why__list {
   margin-top: 72px !important;
   border-top: 1px solid var(--oa-line);
}

.oa-why__row {
   display: grid;
   grid-template-columns: 120px 1fr 1fr;
   gap: 24px;
   align-items: baseline;
   padding: 30px 0;
   border-bottom: 1px solid var(--oa-line);
}

.oa-why__topic {
   color: var(--oa-ink);
   font-size: 15px;
   font-weight: 700;
}

.oa-why__before {
   color: var(--oa-ink-mute);
   font-size: clamp(1.05rem, 1.5vw, 1.35rem);
   font-weight: 500;
   line-height: 1.45;
}

.oa-why__after {
   color: var(--oa-ink);
   font-size: clamp(1.15rem, 1.8vw, 1.6rem);
   font-weight: 700;
   line-height: 1.4;
   letter-spacing: -0.03em;
}

.oa-why__after::before {
   content: '→';
   margin-right: 12px;
   color: var(--oa-accent);
}

/* 보조 reveal (모션 3종에 포함하지 않는 가벼운 등장) */
.oa-js [data-oa-reveal] > li {
   opacity: 0;
   transform: translateY(18px);
   transition:
      opacity 0.7s var(--oa-ease),
      transform 0.7s var(--oa-ease);
   transition-delay: calc(var(--i, 0) * 110ms);
}

.oa-js [data-oa-reveal].is-in > li {
   opacity: 1;
   transform: none;
}

.oa-philo {
   background: var(--oa-surface);
}

.oa-philo__steps {
   position: relative;
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 40px;
   margin-top: 80px !important;
   padding-top: 48px !important;
}

/* Find → Build → Improve 를 잇는 선 */
.oa-philo__steps::before {
   content: '';
   position: absolute;
   top: 0;
   left: 0;
   right: 0;
   height: 2px;
   background: var(--oa-ink);
   transform-origin: left center;
}

.oa-js .oa-philo__steps::before {
   transform: scaleX(0);
   transition: transform 1.4s var(--oa-ease);
}

.oa-js .oa-philo__steps.is-in::before {
   transform: none;
}

.oa-philo__steps li {
   position: relative;
}

.oa-philo__steps li::before {
   content: '';
   position: absolute;
   top: -55px;
   left: 0;
   width: 14px;
   height: 14px;
   border-radius: 50%;
   background: var(--oa-ink);
}

.oa-philo__steps li:nth-child(2)::before {
   background: var(--oa-accent);
}

.oa-philo__key {
   color: var(--oa-ink);
   font-size: clamp(2rem, 3.4vw, 3rem);
   font-weight: 800;
   letter-spacing: -0.04em;
}

.oa-philo__steps li:nth-child(2) .oa-philo__key {
   color: var(--oa-accent);
}

.oa-philo__txt {
   max-width: 320px;
   margin-top: 16px !important;
   color: var(--oa-ink-sec);
   font-size: 17px;
   line-height: 1.65;
}

/* ════════════════════════════════════════════
   ③ Overview — 두 앱을 에디토리얼 두 장면으로
   ════════════════════════════════════════════ */
.oa-overview {
   padding: 0 0 var(--oa-space);
   background: var(--oa-white);
}

.oa-page .oa-overview__list {
   padding-inline: var(--oa-gutter);
}

.oa-overview__list {
   display: grid;
   gap: 20px;
   margin-top: 64px !important;
}

.oa-overview__item {
   display: grid;
   grid-template-columns: 5fr 7fr;
   align-items: center;
   gap: 48px;
   overflow: hidden;
   padding: 56px;
   border-radius: 32px;
   background: var(--oa-surface);
}

.oa-overview__item--curation {
   grid-template-columns: 7fr 5fr;
   background: var(--oa-black);
   color: var(--oa-on-dark);
}

.oa-overview__item--curation .oa-overview__text {
   order: 2;
}

/* 앱 표시 — 섹션 머리와 개요에서 어떤 앱인지 크게 보여준다 */
.oa-appmark {
   display: flex;
   flex-wrap: wrap;
   align-items: center;
   gap: 12px 16px;
   margin-bottom: 36px !important;
   padding-bottom: 28px !important;
   border-bottom: 1px solid var(--oa-line);
}

.oa-appmark--dark {
   border-color: var(--oa-line-dark);
}

.oa-appmark__no {
   display: inline-flex;
   align-items: center;
   min-height: 40px;
   padding: 0 18px;
   border-radius: 999px;
   background: var(--oa-accent);
   color: var(--oa-white);
   font-size: 18px;
   font-weight: 800;
   letter-spacing: 0;
   white-space: nowrap;
}

.oa-appmark__name {
   color: var(--oa-ink);
   font-size: clamp(1.4rem, 2.4vw, 2rem);
   font-weight: 800;
   letter-spacing: -0.035em;
}

.oa-appmark--dark .oa-appmark__name {
   color: var(--oa-on-dark);
}

.oa-overview__no {
   display: flex;
   align-items: center;
   gap: 12px;
   color: var(--oa-ink-sec);
   font-size: 17px;
   font-weight: 700;
}

.oa-overview__item--curation .oa-overview__no {
   color: var(--oa-on-dark-sec);
}

.oa-overview__name {
   margin-top: 14px !important;
   color: inherit;
   font-size: clamp(1.8rem, 3vw, 2.6rem);
   font-weight: 800;
   line-height: 1.2;
   letter-spacing: -0.04em;
}

.oa-overview__desc {
   margin-top: 18px !important;
   color: var(--oa-ink-sec);
   font-size: 17px;
   line-height: 1.65;
}

.oa-overview__item--curation .oa-overview__desc {
   color: var(--oa-on-dark-sec);
}

.oa-overview__item--curation .oa-link {
   color: var(--oa-accent-on-dark);
}

.oa-overview__links {
   display: flex;
   flex-wrap: wrap;
   align-items: center;
   gap: 12px 24px;
   margin-top: 32px !important;
}

.oa-overview__media img {
   width: 100%;
   border-radius: 20px;
   box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.oa-overview__item--curation .oa-overview__media {
   display: flex;
   justify-content: center;
}

.oa-overview__item--curation .oa-overview__media img {
   width: auto;
   max-height: 440px;
   box-shadow: none;
}

/* ════════════════════════════════════════════
   ④ Banner & Popup — 기능 장면 뷰어
   ════════════════════════════════════════════ */
.oa-banner {
   padding: var(--oa-space) 0;
   border-top: 1px solid var(--oa-line);
   background: var(--oa-white);
}

/* 기능 장면 뷰어 — 탭(좌) + 장면(우). 한 화면 안에서 전환한다. */
.oa-scenes {
   display: grid;
   grid-template-columns: 4fr 8fr;
   gap: 56px;
   align-items: start;
   margin-top: 64px;
}

.oa-scenes__tabs {
   grid-column: 1;
   grid-row: 1;
   display: flex;
   flex-direction: column;
   border-top: 1px solid var(--oa-line);
}

.oa-scenes__tab {
   position: relative;
   display: flex;
   align-items: baseline;
   gap: 16px;
   width: 100%;
   min-height: 72px;
   padding: 20px 0;
   border: 0;
   border-bottom: 1px solid var(--oa-line);
   background: none;
   color: var(--oa-ink-mute);
   font: inherit;
   text-align: left;
   cursor: pointer;
   transition: color 0.3s ease;
}

.oa-scenes__tab:hover {
   color: var(--oa-ink-sec);
}

.oa-scenes__tab[aria-selected='true'] {
   color: var(--oa-ink);
}

.oa-scenes__no {
   flex: 0 0 auto;
   font-size: 14px;
   font-weight: 700;
   font-variant-numeric: tabular-nums;
}

.oa-scenes__tab[aria-selected='true'] .oa-scenes__no {
   color: var(--oa-accent);
}

.oa-scenes__title {
   font-size: clamp(1.2rem, 1.9vw, 1.6rem);
   font-weight: 800;
   line-height: 1.3;
   letter-spacing: -0.035em;
}

/* 선택된 장면 표시선 + 자동 넘김 진행 */
.oa-scenes__bar {
   position: absolute;
   left: 0;
   right: 0;
   bottom: -1px;
   height: 2px;
   background: var(--oa-accent);
   transform: scaleX(0);
   transform-origin: left center;
}

.oa-scenes__tab[aria-selected='true'] .oa-scenes__bar {
   transform: none;
}

.oa-scenes.is-auto .oa-scenes__tab[aria-selected='true'] .oa-scenes__bar {
   animation: oa-scene-progress 5s linear both;
}

.oa-scenes.is-paused .oa-scenes__bar {
   animation-play-state: paused !important;
}

@keyframes oa-scene-progress {
   from {
      transform: scaleX(0);
   }
   to {
      transform: none;
   }
}

.oa-scenes__panels {
   grid-column: 2;
   grid-row: 1;
}

.oa-scenes:not(.is-ready) .oa-scenes__panel + .oa-scenes__panel {
   margin-top: 48px; /* JS 없을 때 장면이 차례로 보이는 경우 */
}

.oa-scenes__panel[hidden] {
   display: none;
}

.oa-scenes__panel.is-entering {
   animation: oa-rise 0.5s var(--oa-ease) both;
}

.oa-scenes__desc {
   max-width: 640px;
   min-height: 3.3em;
   margin-bottom: 20px !important;
   color: var(--oa-ink-sec);
   font-size: 18px;
   line-height: 1.65;
}

.oa-scenes__desc strong {
   margin-right: 4px;
   color: var(--oa-ink);
}

.oa-scenes__media {
   overflow: hidden;
   aspect-ratio: 4 / 3;
   border: 1px solid var(--oa-line);
   border-radius: 28px;
   background: var(--oa-surface);
}

.oa-scenes__media img {
   width: 100%;
   height: 100% !important;
   object-fit: cover;
}

.oa-scenes .oa-ctrl {
   grid-column: 1;
   grid-row: 1;
   align-self: end; /* 왼쪽 탭 열 아래쪽 */
}

/* ════════════════════════════════════════════
   ⑤ Curation
   ════════════════════════════════════════════ */
.oa-cur {
   padding: var(--oa-space) 0;
   background: var(--oa-black);
   color: var(--oa-on-dark);
}

.oa-cur__ask {
   margin-top: 20px !important;
   color: var(--oa-accent-on-dark);
   font-size: clamp(2.2rem, 4.2vw, 3.5rem);
   font-weight: 800;
   line-height: 1.14;
   letter-spacing: -0.04em;
}

.oa-demo {
   margin-top: 72px;
   padding: 40px;
   border: 1px solid var(--oa-line-dark);
   border-radius: 32px;
   background: #111113;
}

.oa-demo__flow {
   display: flex;
   flex-wrap: wrap;
   gap: 8px 0;
   padding-bottom: 28px !important;
   border-bottom: 1px solid var(--oa-line-dark);
}

.oa-demo__flow li {
   color: #55555a;
   font-size: 15px;
   font-weight: 700;
   transition: color 0.4s ease;
}

.oa-demo__flow li + li::before {
   content: '→';
   display: inline-block; /* 현재 단계 밑줄이 화살표까지 번지지 않게 */
   margin: 0 14px;
   color: #3a3a3e;
}

.oa-demo__flow li.is-done {
   color: var(--oa-on-dark-sec);
}

.oa-demo__flow li.is-current {
   color: var(--oa-on-dark);
   text-decoration: underline;
   text-decoration-color: var(--oa-accent-on-dark);
   text-decoration-thickness: 2px;
   text-underline-offset: 8px;
}

.oa-demo__body {
   display: grid;
   grid-template-columns: 5fr 7fr;
   gap: 48px;
   margin-top: 36px;
}

.oa-demo__q {
   display: flex;
   flex-wrap: wrap;
   gap: 10px;
   margin: 0 0 28px;
   padding: 0;
   border: 0;
   min-width: 0;
}

.oa-demo__q legend {
   width: 100%;
   margin-bottom: 14px;
   padding: 0;
   color: var(--oa-on-dark);
   font-size: 19px;
   font-weight: 700;
   letter-spacing: -0.02em;
}

.oa-chip {
   min-height: 44px;
   padding: 0 20px;
   border: 1px solid var(--oa-line-dark);
   border-radius: 999px;
   background: transparent;
   color: var(--oa-on-dark-sec);
   font: inherit;
   font-size: 15px;
   font-weight: 600;
   cursor: pointer;
   transition:
      background-color 0.3s ease,
      color 0.3s ease,
      border-color 0.3s ease;
}

.oa-chip:hover {
   border-color: var(--oa-on-dark-sec);
   color: var(--oa-on-dark);
}

.oa-chip[aria-pressed='true'] {
   border-color: var(--oa-accent);
   background: var(--oa-accent);
   color: var(--oa-white);
}

.oa-demo__cond,
.oa-demo__cart {
   display: flex;
   flex-wrap: wrap;
   align-items: center;
   gap: 10px;
   min-height: 48px;
   padding: 12px 16px;
   border: 1px dashed transparent;
   border-radius: 14px;
   color: var(--oa-on-dark-sec);
   font-size: 15px;
   font-weight: 600;
   transition:
      background-color 0.4s ease,
      color 0.4s ease;
}

.oa-demo__cond {
   background: #1d1d1f;
   color: var(--oa-on-dark);
}

.oa-demo__cond.is-off {
   background: transparent;
   border-color: var(--oa-line-dark);
   color: #55555a;
}

.oa-demo__cond-label,
.oa-demo__cart-label {
   color: var(--oa-accent-on-dark);
   font-size: 12px;
   font-weight: 800;
   letter-spacing: 0.06em;
   text-transform: uppercase;
}

.oa-demo__items {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 12px;
}

.oa-item {
   padding: 14px;
   border: 1px solid var(--oa-line-dark);
   border-radius: 18px;
   background: #1d1d1f;
   transition:
      opacity 0.5s ease,
      transform 0.6s var(--oa-ease),
      border-color 0.4s ease,
      filter 0.5s ease;
}

.oa-item__shape {
   display: block;
   aspect-ratio: 4 / 3;
   margin-bottom: 12px;
   border-radius: 12px;
   background: #2c2c30;
}

/* 추상 상품 형태 (실제 상품 화면이 아님) */
.oa-item__shape--a { background: radial-gradient(circle at 50% 55%, #6d67f0 0 26%, #2c2c30 27%); }
.oa-item__shape--b { background: linear-gradient(#2c2c30 0 40%, #4a4a50 40% 70%, #2c2c30 70%); }
.oa-item__shape--c { background: radial-gradient(circle at 50% 55%, #b5b1ff 0 22%, #2c2c30 23%); }
.oa-item__shape--d { background: linear-gradient(90deg, #2c2c30 0 35%, #4a4a50 35% 65%, #2c2c30 65%); }
.oa-item__shape--e { background: radial-gradient(ellipse at 50% 60%, #8f89ff 0 30%, #2c2c30 31%); }
.oa-item__shape--f { background: linear-gradient(45deg, #2c2c30 0 45%, #4a4a50 45% 55%, #2c2c30 55%); }

.oa-item__name {
   display: block;
   color: var(--oa-on-dark);
   font-size: 15px;
   font-weight: 700;
}

.oa-item__tag {
   display: block;
   margin-top: 4px;
   color: var(--oa-on-dark-sec);
   font-size: 13px;
}

.oa-item.is-out {
   opacity: 0.25;
   transform: scale(0.94);
   filter: grayscale(1);
}

.oa-item.is-pick {
   border-color: var(--oa-accent-on-dark);
   transform: translateY(-4px);
}

.oa-demo__cart {
   margin-top: 16px;
   border-color: var(--oa-line-dark);
   color: #55555a;
}

.oa-demo__cart.is-on {
   border-style: solid;
   border-color: var(--oa-accent);
   background: rgba(70, 62, 234, 0.18);
   color: var(--oa-on-dark);
}

.oa-demo__foot {
   display: flex;
   flex-wrap: wrap;
   align-items: center;
   justify-content: space-between;
   gap: 16px;
   margin-top: 28px;
   padding-top: 20px;
   border-top: 1px solid var(--oa-line-dark);
}

.oa-demo__foot .oa-ctrl {
   order: -1; /* 우하단 플로팅 문의 버튼과 겹치지 않게 왼쪽 */
}

.oa-demo__note {
   max-width: 640px;
   color: var(--oa-on-dark-sec);
   font-size: 13px;
   line-height: 1.6;
}

.oa-cur__feats {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 20px;
   margin-top: 96px !important;
}

.oa-cur__feat figure {
   display: flex;
   align-items: center;
   justify-content: center;
   height: 300px;
   padding: 24px;
   overflow: hidden;
   border-radius: 24px;
   background: #f5f5f7;
}

.oa-cur__feat figure img {
   max-height: 100%;
   width: auto;
   border-radius: 8px;
}

.oa-cur__feat h3 {
   margin-top: 24px !important;
   color: var(--oa-on-dark);
   font-size: 21px;
   font-weight: 700;
   letter-spacing: -0.03em;
}

.oa-cur__feat p {
   margin-top: 10px !important;
   color: var(--oa-on-dark-sec);
   font-size: 16px;
   line-height: 1.6;
}

.oa-cur__auto {
   max-width: 760px;
   margin-top: 64px !important;
   color: var(--oa-on-dark-sec);
   font-size: clamp(1.1rem, 1.6vw, 1.4rem);
   line-height: 1.6;
}

.oa-cur__auto strong {
   color: var(--oa-on-dark);
}

/* ════════════════════════════════════════════
   ⑦ Final CTA
   ════════════════════════════════════════════ */
.oa-final {
   padding: var(--oa-space) 0 calc(var(--oa-space) + 40px);
   background: var(--oa-black);
   border-top: 1px solid var(--oa-line-dark);
   color: var(--oa-on-dark);
}

.oa-final__title {
   color: var(--oa-on-dark);
   font-size: clamp(2.6rem, 6vw, 5.4rem);
   font-weight: 800;
   line-height: 1.06;
   letter-spacing: -0.045em;
}

.oa-final__brand {
   margin-top: 20px !important;
   color: var(--oa-accent-on-dark);
   font-size: clamp(1.2rem, 2vw, 1.6rem);
   font-weight: 700;
}

.oa-final__list {
   max-width: 880px; /* 우하단 플로팅 문의 버튼(right:100px) 영역을 비운다 */
   margin-top: 64px !important;
   border-top: 1px solid var(--oa-line-dark);
}

.oa-final__link {
   display: flex;
   flex-wrap: wrap;
   align-items: center;
   justify-content: space-between;
   gap: 8px 24px;
   min-height: 96px;
   padding: 24px 0;
   border-bottom: 1px solid var(--oa-line-dark);
   color: var(--oa-on-dark);
   text-decoration: none;
   transition: color 0.2s ease;
}

.oa-final__link:hover {
   color: var(--oa-accent-on-dark);
}

.oa-final__name {
   font-size: clamp(1.3rem, 2.4vw, 2rem);
   font-weight: 700;
   letter-spacing: -0.03em;
}

.oa-final__to {
   color: var(--oa-on-dark-sec);
   font-size: 16px;
   font-weight: 600;
}

.oa-final__note {
   margin-top: 32px !important;
   color: var(--oa-on-dark-sec);
   font-size: 14px;
}

/* ════════════════════════════════════════════
   반응형 — 1023 이하 태블릿, 767 이하 모바일, 479 이하 소형
   ════════════════════════════════════════════ */
@media (max-width: 1023px) {
   .oa-page {
      --oa-space: 96px;
   }

   .oa-overview__item,
   .oa-overview__item--curation {
      grid-template-columns: 1fr;
      gap: 36px;
      padding: 40px;
   }

   .oa-overview__item--curation .oa-overview__text {
      order: 0;
   }

   /* 탭을 위 가로줄로, 장면을 아래로 */
   .oa-scenes {
      grid-template-columns: 1fr;
      gap: 24px;
      margin-top: 40px;
   }

   .oa-scenes__tabs,
   .oa-scenes__panels {
      grid-column: auto;
      grid-row: auto;
   }

   .oa-scenes__tabs {
      flex-direction: row;
      gap: 8px;
      overflow-x: auto;
      margin-inline: calc(var(--oa-gutter) * -1);
      padding: 2px var(--oa-gutter) 6px;
      border-top: 0;
      scroll-snap-type: x proximity;
      scrollbar-width: none;
   }

   .oa-scenes__tab {
      flex: 0 0 auto;
      gap: 8px;
      width: auto;
      min-height: 44px;
      padding: 10px 18px;
      border: 1px solid var(--oa-line);
      border-radius: 999px;
      scroll-snap-align: start;
   }

   .oa-scenes__tab[aria-selected='true'] {
      border-color: var(--oa-ink);
      background: var(--oa-ink);
      color: var(--oa-white);
   }

   .oa-scenes__tab[aria-selected='true'] .oa-scenes__no {
      color: var(--oa-accent-on-dark);
   }

   .oa-scenes__title {
      font-size: 15px;
      font-weight: 700;
   }

   .oa-scenes__bar {
      left: 18px;
      right: 18px;
      bottom: 5px;
      background: var(--oa-accent-on-dark);
   }

   .oa-scenes__tab[aria-selected='true'] .oa-scenes__bar {
      transform: scaleX(0);
   }

   .oa-scenes .oa-ctrl {
      grid-column: auto;
      grid-row: auto;
   }

   .oa-demo__body {
      grid-template-columns: 1fr;
      gap: 28px;
   }

   .oa-cur__feats {
      grid-template-columns: 1fr 1fr;
   }
}

@media (max-width: 767px) {
   .oa-page {
      --oa-space: 88px;
   }

   .oa-br-pc {
      display: none;
   }

   .oa-br-m {
      display: inline;
   }

   .oa-page .oa-subnav {
      flex-wrap: nowrap;
      justify-content: flex-start;
      overflow-x: auto;
      padding: 20px 24px;
      scrollbar-width: none;
   }

   .oa-page .oa-subnav .nl-subnav-item {
      flex: 0 0 auto;
   }

   .oa-hero {
      padding: 72px 0 72px;
   }

   .oa-hero__stage {
      margin-top: 56px;
   }

   .oa-hero__groups {
      gap: 10px;
   }

   .oa-hero__group {
      padding: 20px 14px;
   }

   .oa-hero__group::before {
      border-radius: 20px;
   }

   .oa-hero__product {
      margin-bottom: 16px;
      font-size: 18px;
   }

   /* 모바일: 작업 조각을 세로로 쌓아 두 열을 유지한다 */
   .oa-hero__tasks {
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
   }

   .oa-hero__tasks li {
      padding: 8px 12px;
      font-size: 13px;
   }

   .oa-hero__bracket,
   .oa-hero__stem {
      height: 20px;
   }

   .oa-hero__mark {
      font-size: clamp(1.15rem, 5.6vw, 1.6rem);
      letter-spacing: 0.2em;
      text-indent: 0.2em;
   }

   @keyframes oa-mark {
      from {
         opacity: 0;
         filter: blur(8px);
         letter-spacing: 0.4em;
      }
      to {
         opacity: 1;
         filter: blur(0);
         letter-spacing: 0.2em;
      }
   }

   .oa-why__list {
      margin-top: 48px !important;
   }

   .oa-why__row {
      grid-template-columns: 1fr;
      gap: 6px;
      padding: 24px 0;
   }

   .oa-why__topic {
      color: var(--oa-accent);
      font-size: 13px;
   }

   .oa-page .oa-overview__list {
      margin-top: 40px !important;
      padding-inline: 16px;
   }

   .oa-overview__item,
   .oa-overview__item--curation {
      padding: 32px 24px;
      border-radius: 24px;
   }

   .oa-overview__links .oa-btn {
      width: 100%;
   }

   .oa-overview__item--curation .oa-overview__media img {
      max-height: 360px;
   }

   .oa-scenes__desc {
      min-height: 0;
      font-size: 16px;
   }

   .oa-scenes__media {
      border-radius: 18px;
   }

   .oa-appfoot {
      margin-top: 48px;
   }

   .oa-appfoot .oa-btn {
      width: 100%;
   }

   .oa-demo {
      margin-top: 48px;
      margin-inline: -8px;
      padding: 24px 18px;
      border-radius: 24px;
   }

   .oa-demo__flow li {
      font-size: 12px;
   }

   .oa-demo__flow li + li::before {
      margin: 0 7px;
   }

   .oa-demo__q legend {
      font-size: 17px;
   }

   .oa-chip {
      flex: 1 1 0;
      padding: 0 12px;
   }

   .oa-demo__items {
      gap: 8px;
   }

   .oa-item {
      padding: 10px;
      border-radius: 14px;
   }

   .oa-item__shape {
      margin-bottom: 8px;
      border-radius: 8px;
   }

   .oa-item__name {
      font-size: 14px;
   }

   .oa-item__tag {
      font-size: 11px;
   }

   .oa-cur__feats {
      grid-template-columns: 1fr;
      gap: 48px;
      margin-top: 72px !important;
   }

   .oa-cur__feat figure {
      height: auto;
      max-height: 360px;
   }

   .oa-cur__feat figure img {
      max-height: 312px;
   }

   .oa-philo__steps {
      grid-template-columns: 1fr;
      gap: 40px;
      margin-top: 56px !important;
      padding-top: 0 !important;
      padding-left: 32px !important;
   }

   /* 모바일: 선을 세로로 */
   .oa-philo__steps::before {
      top: 6px;
      bottom: 6px;
      left: 6px;
      right: auto;
      width: 2px;
      height: auto;
      transform-origin: center top;
   }

   .oa-js .oa-philo__steps::before {
      transform: scaleY(0);
   }

   .oa-philo__steps li::before {
      top: 10px;
      left: -32px;
   }

   .oa-final__link {
      min-height: 88px;
   }

   /* 플로팅 문의 버튼(우하단 20px)이 마지막 링크를 가리지 않도록 */
   .oa-final {
      padding-bottom: 140px;
   }
}

@media (max-width: 479px) {
   .oa-hero__title {
      font-size: clamp(2.1rem, 9vw, 2.6rem);
   }

   .oa-h2,
   .oa-cur__ask {
      font-size: clamp(1.75rem, 7.6vw, 2.1rem);
   }

   .oa-final__title {
      font-size: clamp(2.2rem, 10vw, 2.7rem);
   }

   .oa-hero__tasks li {
      font-size: 12.5px;
   }
}

/* ── reduced-motion: 모션 없이 완료 장면 그대로 ── */
@media (prefers-reduced-motion: reduce) {
   .oa-page *,
   .oa-page *::before,
   .oa-page *::after {
      animation: none !important;
      transition: none !important;
   }
}

/* ════════ FAQ (자주 묻는 질문) ════════ */
.oa-faq { padding: var(--oa-space) 0; background: var(--oa-surface); color: var(--oa-ink); }
.oa-faq__list { margin-top: 32px; border-top: 1px solid var(--oa-line); }
.oa-faq__item { padding: 24px 0; border-bottom: 1px solid var(--oa-line); }
.oa-faq__q { margin: 0 0 8px; font-size: 1.15rem; font-weight: 700; line-height: 1.45; letter-spacing: -0.02em; word-break: keep-all; }
.oa-faq__a { margin: 0; font-size: 1rem; line-height: 1.7; color: var(--oa-ink-sec); word-break: keep-all; }
.oa-faq__a a { text-decoration: underline; text-underline-offset: 2px; color: inherit; }
@media (max-width: 767.98px) {
   .oa-faq__q { font-size: 1.05rem; }
}