/* ============================================================
   SKY MEDIA GROUP — 포트폴리오 공통 스타일
   톤: 풀블랙 시네마틱 (배경 #000, 앰버 포인트)
   ============================================================ */

:root {
  --bg: #000000;
  --surface: #0b0b0c;
  --surface-2: #121214;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.18);

  --text: #ededed;
  --text-dim: #9a9aa0;
  --text-faint: #6a6a70;

  --amber: #f0a93b;
  --amber-soft: rgba(240, 169, 59, 0.14);
  --sky: #59a9e8;

  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1240px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont,
               'Apple SD Gothic Neo', 'Segoe UI', 'Malgun Gothic', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* 화면에는 안 보이지만 스크린리더는 읽는 텍스트 */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- 헤더 ---------- */

.hdr {
  position: sticky; top: 0; z-index: 60;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.hdr__in {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; height: 68px;
}

.brand { display: flex; align-items: center; gap: 12px; }

/* 로고 심볼이 주황+검정 2톤이라 검정 배경에서는 반쪽이 사라진다.
   밝은 플레이트 위에 올려 원본 로고를 그대로 살린다. */
.brand__plate {
  width: 38px; height: 38px; flex: none;
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, #e9eaec);
  display: grid; place-items: center;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12), 0 6px 18px rgba(0, 0, 0, 0.6);
}
.brand__plate img { width: 26px; height: auto; }

.brand__txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name {
  font-size: 15px; font-weight: 800; letter-spacing: 0.06em;
}
.brand__name em { font-style: normal; color: var(--amber); }
.brand__sub {
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-faint);
}

.nav { display: flex; align-items: center; gap: 26px; }
.nav a {
  font-size: 14px; color: var(--text-dim);
  transition: color 0.2s var(--ease);
}
.nav a:hover { color: var(--text); }

.nav__cta {
  border: 1px solid var(--line-strong);
  border-radius: 999px; padding: 8px 16px;
  font-size: 13px; color: var(--text) !important;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav__cta:hover { border-color: var(--amber); background: var(--amber-soft); }

@media (max-width: 760px) {
  .nav a:not(.nav__cta) { display: none; }
}

/* ---------- 히어로 ---------- */

.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }

/* 배경: 실제 작업 썸네일이 아주 흐리게 흘러가는 두 줄 */
.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  display: flex; flex-direction: column; justify-content: center; gap: 14px;
  opacity: 0.3;
  filter: grayscale(0.35) contrast(1.05);
  pointer-events: none;
}
.hero__row { display: flex; gap: 14px; width: max-content; }
.hero__row img {
  width: 268px; height: 151px; object-fit: cover;
  border-radius: 10px; flex: none;
}
.hero__row--a { animation: drift-l 78s linear infinite; }
.hero__row--b { animation: drift-r 96s linear infinite; }

@keyframes drift-l { from { transform: translateX(0); }   to { transform: translateX(-50%); } }
@keyframes drift-r { from { transform: translateX(-50%); } to { transform: translateX(0); } }

/* 배경 위 그라데이션 — 글자 가독성 확보 */
.hero__veil {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(90% 70% at 20% 40%, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.9) 55%, #000 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.55) 40%, #000 96%);
}

.hero__in { position: relative; z-index: 2; padding: 118px 0 96px; }

.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--amber); margin: 0 0 22px;
}
.kicker::before {
  content: ''; width: 26px; height: 1px; background: var(--amber); opacity: 0.7;
}

.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.14; font-weight: 800; letter-spacing: -0.035em;
  max-width: 17ch;
}
.hero h1 span { color: var(--amber); }

.hero__lead {
  margin: 0; max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 18px); color: var(--text-dim);
}

.hero__acts { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  height: 48px; padding: 0 24px; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.18s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--amber); color: #140d02; }
.btn--primary:hover { background: #ffc063; }
.btn--ghost { border-color: var(--line-strong); color: var(--text); background: transparent; }
.btn--ghost:hover { border-color: var(--amber); background: var(--amber-soft); }

/* ---------- 숫자 띠 ---------- */

.stats {
  display: grid; grid-template-columns: repeat(5, 1fr);
  border-bottom: 1px solid var(--line);
}
.stat { padding: 30px 22px; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; }
.stat__n {
  font-size: clamp(22px, 2.6vw, 31px); font-weight: 800;
  letter-spacing: -0.03em; line-height: 1.15;
}
.stat__n em { font-style: normal; color: var(--amber); font-size: 0.62em; margin-left: 2px; }
.stat__l { font-size: 12.5px; color: var(--text-faint); margin-top: 6px; }

@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
  .stat:nth-child(odd) { border-left: 0; }
}

/* ---------- 섹션 공통 ---------- */

.sec { padding: 96px 0; border-bottom: 1px solid var(--line); }
.sec--tight { padding: 72px 0; }

.sec__head { max-width: 720px; margin-bottom: 46px; }
.sec__head h2 {
  margin: 0 0 14px;
  font-size: clamp(25px, 3.4vw, 38px); font-weight: 800; letter-spacing: -0.03em;
  line-height: 1.22;
}
.sec__head p { margin: 0; color: var(--text-dim); font-size: 15.5px; }

/* ---------- 사업영역 카드 ---------- */

.lines { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 18px; }

.line {
  position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 26px 28px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.line:hover { border-color: rgba(240, 169, 59, 0.42); transform: translateY(-4px); }
.line::after {
  content: ''; position: absolute; inset: 0 0 auto; height: 2px;
  background: linear-gradient(90deg, var(--amber), transparent);
  opacity: 0; transition: opacity 0.25s var(--ease);
}
.line:hover::after { opacity: 1; }

.line__no {
  font-size: 11px; letter-spacing: 0.2em; color: var(--amber); margin-bottom: 14px;
}
.line h3 { margin: 0 0 14px; font-size: 19px; font-weight: 700; letter-spacing: -0.02em; }
.line ul { margin: 0; padding: 0; list-style: none; }
.line li {
  position: relative; padding-left: 14px; margin-bottom: 7px;
  font-size: 14px; color: var(--text-dim);
}
.line li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 4px; height: 4px; border-radius: 50%; background: var(--text-faint);
}

/* ---------- 인프라 스펙 ---------- */

.specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }

.spec {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px;
}
.spec__tag {
  font-size: 10.5px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--sky); margin-bottom: 12px;
}
.spec h3 { margin: 0 0 16px; font-size: 17.5px; font-weight: 700; letter-spacing: -0.02em; }
.spec dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 9px 16px; font-size: 13.5px; }
.spec dt { color: var(--text-faint); white-space: nowrap; }
.spec dd { margin: 0; color: var(--text-dim); }

/* ---------- 필터 ---------- */

.filters {
  display: flex; flex-wrap: wrap; gap: 9px;
  margin-bottom: 30px;
}
.chip {
  border: 1px solid var(--line); background: transparent; color: var(--text-dim);
  border-radius: 999px; padding: 8px 17px; font-size: 13.5px; cursor: pointer;
  font-family: inherit;
  transition: all 0.2s var(--ease);
}
.chip:hover { color: var(--text); border-color: var(--line-strong); }
.chip[aria-pressed="true"] {
  background: var(--amber); border-color: var(--amber); color: #140d02; font-weight: 600;
}

.note {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--text-faint);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px;
  margin-bottom: 26px;
}
.note svg { flex: none; opacity: 0.8; }

/* ---------- 영상 그리드 ---------- */

.grid {
  /* min(100%, …) — 310px 보다 좁은 화면(폴드 커버 등)에서도 잘리지 않게 */
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 310px), 1fr)); gap: 22px;
}

.card {
  display: block; width: 100%; text-align: left; cursor: pointer;
  background: transparent; border: 0; padding: 0; color: inherit;
  font-family: inherit;
  animation: card-in 0.45s var(--ease) both;
}
@keyframes card-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.card__thumb {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  border-radius: var(--radius); background: var(--surface-2);
  border: 1px solid var(--line);
  transition: border-color 0.25s var(--ease), transform 0.3s var(--ease);
}
.card:hover .card__thumb { border-color: rgba(240, 169, 59, 0.45); transform: translateY(-4px); }

.card__pic {
  position: absolute; inset: 0; display: block;
  background-size: cover; background-position: center;
  background-color: var(--surface-2);
  transition: transform 0.5s var(--ease), filter 0.3s var(--ease);
  filter: brightness(0.82) saturate(0.95);
  user-select: none;
}
.card:hover .card__pic { transform: scale(1.05); filter: brightness(1) saturate(1); }

.card__play {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.45));
}
.card__play span {
  width: 54px; height: 54px; border-radius: 50%;
  background: rgba(10, 10, 10, 0.55); border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  display: grid; place-items: center;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}
.card:hover .card__play span {
  transform: scale(1.1); background: var(--amber); border-color: var(--amber);
}
.card__play svg { margin-left: 3px; }
.card:hover .card__play svg path { fill: #140d02; }

.card__cat {
  position: absolute; left: 12px; top: 12px;
  font-size: 11px; letter-spacing: 0.04em;
  background: rgba(0, 0, 0, 0.62); border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  border-radius: 999px; padding: 4px 11px; color: var(--text);
}

.card__body { padding: 14px 2px 0; }
.card__title {
  margin: 0; font-size: 15.5px; font-weight: 600; letter-spacing: -0.02em;
  line-height: 1.45;
  transition: color 0.2s var(--ease);
}
.card:hover .card__title { color: var(--amber); }
.card__client { margin: 5px 0 0; font-size: 13px; color: var(--text-faint); }

.empty { padding: 60px 0; color: var(--text-faint); text-align: center; }

/* ---------- 문의 ---------- */

.contact {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 44px; align-items: start;
}
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; gap: 32px; } }

.contact__box {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 28px;
}
.contact__box dl { margin: 0; display: grid; grid-template-columns: 92px 1fr; gap: 14px 12px; font-size: 14.5px; }
.contact__box dt { color: var(--text-faint); }
.contact__box dd { margin: 0; }
.todo { color: var(--amber); font-size: 13.5px; }

/* ---------- 푸터 ---------- */

.ftr { padding: 46px 0; }
.ftr__in { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.ftr__logos { display: flex; align-items: center; gap: 26px; opacity: 0.72; }
.ftr__logos img { height: 26px; width: auto; }
.ftr__logos img.is-tall { height: 30px; }
.ftr small { color: var(--text-faint); font-size: 12.5px; }

/* ============================================================
   재생 오버레이 (라이트박스)
   ============================================================ */

.lb {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center; padding: 28px;
  overflow-y: auto; /* 세로 공간이 부족할 때(가로 모드 폰) 스크롤 허용 */
  opacity: 0; visibility: hidden;
  transition: opacity 0.25s var(--ease), visibility 0.25s var(--ease);
}
.lb.is-open { opacity: 1; visibility: visible; }
.lb[hidden] { display: none; }

.lb__backdrop {
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, 0.94);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}

.lb__frame {
  position: relative; z-index: 1;
  width: min(1180px, 100%);
  transform: scale(0.975); transition: transform 0.28s var(--ease);
}
/* 세로 공간이 충분하면 스테이지+컨트롤+내비가 스크롤 없이 모두 보이게
   프레임 너비를 뷰포트 높이에 맞춰 제한 (짧은 화면은 위 overflow 스크롤로 처리) */
@media (min-height: 560px) {
  .lb__frame { width: min(1180px, 100%, calc((100vh - 260px) * 16 / 9)); }
}
.lb.is-open .lb__frame { transform: none; }

.lb__top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 20px; margin-bottom: 14px;
}
.lb__meta { min-width: 0; }
.lb__cat { font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--amber); }
.lb__title {
  margin: 5px 0 0; font-size: clamp(17px, 2.2vw, 22px); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.35;
}
.lb__x {
  flex: none; width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.07); border: 1px solid var(--line);
  color: var(--text); cursor: pointer; display: grid; place-items: center;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.lb__x:hover { background: rgba(255, 255, 255, 0.15); border-color: var(--line-strong); }

/* 플레이어 본체 — 전체화면 대상 */
.lb__player {
  position: relative; background: #000;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.lb__player:fullscreen { border: 0; border-radius: 0; }

/* overflow:hidden 이 핵심 —
   iframe 을 영상보다 크게 만들어 유튜브 UI 가 그려지는 위아래 여백을 잘라낸다 */
.stage { position: relative; aspect-ratio: 16 / 9; background: #000; overflow: hidden; }
.lb__player:fullscreen .stage { height: 100vh; aspect-ratio: auto; }

.stage iframe {
  position: absolute; left: 0; top: 0;
  border: 0;
  /* 화질 트릭: iframe 내부 크기를 1920x1080 으로 두고 transform 으로 축소한다.
     유튜브는 플레이어 크기를 보고 화질을 고르므로 1080p 를 선택하게 된다.
     (크기·배율은 player.js 의 sizeFrame() 이 계산) */
  transform-origin: 0 0;
  /* 핵심: 유튜브 iframe 자체는 마우스를 못 받는다.
     제목/로고/'YouTube에서 보기' 링크가 눌리지 않는다. */
  pointer-events: none;
}

/* 클릭 방패 — 모든 포인터 입력을 우리가 먼저 가로챈다 */
.shield {
  position: absolute; inset: 0; z-index: 3;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

/* 커튼 — 로딩·일시정지·종료 화면을 완전히 덮어
   유튜브 자체 UI(제목·채널·링크 버튼·관련 영상)가 보이지 않게 한다 */
.bigplay {
  position: absolute; inset: 0; z-index: 5; display: grid; place-items: center;
  pointer-events: none;
  opacity: 0; transition: opacity 0.25s var(--ease);
  background: #000;
}
.bigplay.is-on { opacity: 1; }
.bigplay span {
  width: 76px; height: 76px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.3);
  display: grid; place-items: center;
}
.bigplay.is-wait span { display: none; } /* 로딩 중에는 아이콘 대신 스피너만 */
.bigplay__label {
  position: absolute; left: 0; right: 0; bottom: 16%;
  text-align: center; font-size: 13.5px; color: var(--text-faint);
  padding: 0 24px; letter-spacing: -0.01em;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}


.spin {
  position: absolute; z-index: 6; left: 50%; top: 50%; margin: -17px 0 0 -17px;
  width: 34px; height: 34px; border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.22); border-top-color: var(--amber);
  animation: spin 0.8s linear infinite;
  opacity: 0; transition: opacity 0.2s var(--ease);
  pointer-events: none;
}
.spin.is-on { opacity: 1; }
@keyframes spin { to { transform: rotate(360deg); } }

.stage__err {
  position: absolute; inset: 0; z-index: 7; display: none;
  place-items: center; text-align: center; padding: 24px;
  background: #08080a; color: var(--text-dim); font-size: 14.5px;
}
.stage__err.is-on { display: grid; }

/* 워터마크 — 화면 녹화 시 출처 표시용(연하게) */
.stage__wm {
  position: absolute; z-index: 4; right: 14px; top: 12px;
  font-size: 11px; letter-spacing: 0.14em; color: rgba(255, 255, 255, 0.3);
  pointer-events: none; user-select: none;
}

/* ---------- 자체 컨트롤바 ---------- */

.ctrl {
  position: relative; z-index: 5;
  background: linear-gradient(180deg, #0a0a0b, #050506);
  border-top: 1px solid var(--line);
  padding: 12px 16px 14px;
}
.lb__player:fullscreen .ctrl {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.88));
  border-top: 0;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.lb__player:fullscreen.is-idle .ctrl { opacity: 0; transform: translateY(8px); pointer-events: none; }
.lb__player:fullscreen.is-idle { cursor: none; }

.bar {
  position: relative; height: 16px; display: flex; align-items: center;
  cursor: pointer; margin-bottom: 6px;
}
.bar__track {
  position: relative; width: 100%; height: 4px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.16); overflow: hidden;
  transition: height 0.15s var(--ease);
}
.bar:hover .bar__track { height: 6px; }
.bar__load { position: absolute; inset: 0 auto 0 0; width: 0%; background: rgba(255, 255, 255, 0.2); }
.bar__fill { position: absolute; inset: 0 auto 0 0; width: 0%; background: var(--amber); }
.bar__knob {
  position: absolute; top: 50%; left: 0; width: 12px; height: 12px;
  margin: -6px 0 0 -6px; border-radius: 50%; background: var(--amber);
  opacity: 0; transition: opacity 0.15s var(--ease);
  pointer-events: none;
}
.bar:hover .bar__knob, .bar.is-drag .bar__knob { opacity: 1; }

.ctrl__row { display: flex; align-items: center; gap: 6px; }

.ib {
  width: 38px; height: 38px; border-radius: 9px; flex: none;
  background: transparent; border: 0; color: var(--text); cursor: pointer;
  display: grid; place-items: center;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}
.ib:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }
.ib:disabled { opacity: 0.32; cursor: default; }
.ib:disabled:hover { background: transparent; }

.time {
  font-size: 12.5px; color: var(--text-dim); font-variant-numeric: tabular-nums;
  margin-left: 6px; white-space: nowrap;
}
.time b { color: var(--text); font-weight: 500; }

.ctrl__sp { flex: 1; }

.vol { display: flex; align-items: center; gap: 4px; }
.vol__s {
  width: 82px; height: 4px; border-radius: 999px; appearance: none; -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.18); cursor: pointer; outline-offset: 6px;
}
.vol__s::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%;
  background: var(--text); border: 0; cursor: pointer;
}
.vol__s::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%; background: var(--text); border: 0; cursor: pointer;
}
@media (max-width: 620px) { .vol__s { display: none; } }

.lb__nav { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; gap: 12px; }
.lb__navbtn {
  display: inline-flex; align-items: center; gap: 8px; min-width: 0;
  background: transparent; border: 1px solid var(--line); border-radius: 999px;
  color: var(--text-dim); padding: 8px 16px; font-size: 13.5px; cursor: pointer;
  font-family: inherit;
  transition: all 0.2s var(--ease);
}
.lb__navbtn:hover { color: var(--text); border-color: var(--line-strong); }
.lb__navbtn:disabled { opacity: 0.3; cursor: default; }
.lb__navbtn span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 240px; }
@media (max-width: 620px) { .lb__navbtn span { display: none; } }

.lb__hint { font-size: 12px; color: var(--text-faint); text-align: center; }
@media (max-width: 760px) { .lb__hint { display: none; } }

/* ---------- 접근성: 모션 최소화 ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}