/* ============================================================
 * IDW 아이동월드 — Air 디자인 토큰을 아이동월드에 맞게 각색
 * 베이스: sky canvas(#426188) + frosted glass + 대형 디스플레이
 * 각색  : 푸른 하늘 그라데이션 / 별빛 언어선택 / K-pop 시계 강조(빨강·2배)
 * ============================================================ */

:root {
  /* ── Air 토큰 (그대로) ── */
  --color-sky-canvas: #426188;
  --color-action-blue: #2b7fff;
  --color-midnight-ink: #000000;
  --color-cloud-white: #ffffff;
  --color-charcoal-text: #1b1b1b;
  --color-haze-grey: #f5f5f5;

  --font-control: 'Inter', 'Noto Sans KR', ui-sans-serif, system-ui, sans-serif;
  --font-compressed: 'Oswald', 'Inter', ui-sans-serif, sans-serif;
  --font-cursive: 'Dancing Script', 'Gowun Dodum', cursive;
  --font-tnt: 'Space Mono', 'Noto Sans KR', monospace;
  --font-ko-display: 'Black Han Sans', 'Noto Sans KR', sans-serif;

  --spacing-8: 8px;  --spacing-12: 12px; --spacing-16: 16px; --spacing-20: 20px;
  --spacing-24: 24px; --spacing-32: 32px; --spacing-48: 48px; --spacing-64: 64px;
  --spacing-80: 80px; --spacing-120: 120px;
  --section-gap: 48px; --card-padding: 20px;

  --radius-md: 4px; --radius-lg: 8px; --radius-images: 11px; --radius-cards: 14px;

  /* ── 아이동월드 각색 토큰 ── */
  --sky-top: #6f93bd;          /* 하늘 윗쪽(밝음) */
  --sky-bottom: #2f4a6b;       /* 하늘 아랫쪽(깊음) */
  --glass-bg: rgba(255,255,255,0.14);
  --glass-border: rgba(255,255,255,0.30);
  --on-canvas: var(--color-cloud-white);
  --on-canvas-dim: rgba(255,255,255,0.72);
  --clock-emphasis: #ff5a5f;   /* (구) 단색 강조 — 폴백/참고용 */
  /* 시계 숫자말 K-pop 그라데이션 (보라→마젠타→핑크→빨강) */
  --clock-gradient: linear-gradient(115deg, #8b5cf6 0%, #d946ef 32%, #f43f5e 66%, #ff6b6b 100%);
  --star-glow: rgba(255,255,255,0.95);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-control);
  color: var(--on-canvas);
  background: linear-gradient(180deg, var(--sky-top) 0%, var(--color-sky-canvas) 45%, var(--sky-bottom) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body[dir="rtl"] { direction: rtl; }

/* ── 하늘 배경 (구름·빛무리) ── */
.sky { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.cloud {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.5), rgba(255,255,255,0) 70%);
  filter: blur(8px);
  opacity: 0.6;
  animation: drift 22.4s linear infinite;
}
.cloud-1 { width: 320px; height: 160px; top: 12%; left: -10%; animation-duration: 30.8s; }
.cloud-2 { width: 240px; height: 120px; top: 38%; right: -12%; animation-duration: 39.2s; animation-direction: reverse; }
.cloud-3 { width: 200px; height: 100px; top: 68%; left: 20%; animation-duration: 50.4s; opacity: 0.4; }
@keyframes drift {
  0%   { transform: translateX(0) translateY(0); }
  50%  { transform: translateX(40px) translateY(-16px); }
  100% { transform: translateX(0) translateY(0); }
}

/* ── 레이아웃: 모바일 세로 우선 (중앙 정렬, 최대폭 제한) ── */
.page, .topbar, .biz {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}
section { padding: var(--section-gap) var(--spacing-24); }

/* ── 상단바 ── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--spacing-16) var(--spacing-20);
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  background: rgba(66,97,136,0.35);
}
.topbar__label {
  font-family: var(--font-ko-display);
  font-size: 16px; letter-spacing: 0.04em; color: var(--on-canvas);
}
.lang-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--on-canvas);
  border: 1px solid rgba(255,255,255,0.6); border-radius: 9999px;
  padding: 6px 12px; font-family: var(--font-control); font-size: 13px;
  cursor: pointer; transition: border-color 0.14s, background 0.14s;
}
.lang-chip:hover { border-color: #fff; background: rgba(255,255,255,0.08); }
.lang-chip__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #fff; box-shadow: 0 0 8px 2px var(--star-glow);
}

/* ── 히어로 워드마크 ── */
.hero { text-align: center; padding-top: var(--spacing-48); padding-bottom: var(--spacing-32); }
.wordmark { margin: 0; max-width: 100%; }
/* Latin 브랜드 워드마크는 RTL 언어에서도 항상 좌→우 */
.wordmark, .morph__svg { direction: ltr; }

/* ── 타이틀 "결합" 연출 (3.92s · 흩어진 빛에서 모여 맺힘 → 다시 풀어짐 · 몽실몽실 몽환) ──
   IDO(채움)·NG(외곽선)·World(커시브) 세 빛덩이 + 빛가루가 부드럽게 결합. */
.morph__svg { width: clamp(264px, 82vw, 432px); height: auto; display: block; margin: 0 auto; }
.morph text {
  font-family: var(--font-compressed); font-weight: 700;
  transform-box: fill-box; transform-origin: center;
}
.m-ido, .m-ng { font-size: 70px; letter-spacing: -0.02em; }
.m-ido { fill: var(--on-canvas); }
.m-ng  { fill: none; stroke: var(--on-canvas); stroke-width: 2.4; paint-order: stroke; }
.morph .m-world {
  font-family: var(--font-cursive); font-weight: 700; font-size: 60px;
  fill: var(--on-canvas);
}
.m-spark { fill: #fff3d6; }

/* 전체를 부드럽게 띄우고 따뜻한 빛무리 */
.morph__float {
  transform-box: fill-box; transform-origin: center;
  animation: floaty 3.36s ease-in-out infinite;
  filter: drop-shadow(0 0 16px rgba(255,238,205,0.45)) drop-shadow(0 6px 30px rgba(150,180,230,0.30));
}
@keyframes floaty { 0%,100% { transform: translateY(-5px); } 50% { transform: translateY(6px); } }

.m-ido   { animation: idoIn 3.92s cubic-bezier(.32,1.35,.5,1) infinite; }
.m-ng    { animation: ngIn  3.92s cubic-bezier(.32,1.35,.5,1) infinite; }
.morph .m-world { animation: worldIn 3.92s cubic-bezier(.32,1.35,.5,1) infinite; }
.m-spark { animation: sparkIn 3.92s ease-in-out infinite; }
.m-spark.s2 { animation-delay: -0.336s; } .m-spark.s3 { animation-delay: -0.672s; }
.m-spark.s4 { animation-delay: -0.168s; } .m-spark.s5 { animation-delay: -0.504s; }

/* IDO: 왼쪽 아래 빛에서 모여 맺힘 → 유지 → 다시 빛으로 풀어짐 */
@keyframes idoIn {
  0%,6%    { opacity:0; transform: translate(-30px,18px) scale(.82) rotate(-3deg); }
  30%,70%  { opacity:1; transform: translate(0,0) scale(1) rotate(0); }
  94%,100% { opacity:0; transform: translate(-30px,18px) scale(.82) rotate(-3deg); }
}
/* NG: 오른쪽 위 빛에서 모여 맺힘 */
@keyframes ngIn {
  0%,6%    { opacity:0; transform: translate(30px,-16px) scale(.82) rotate(3deg); }
  30%,70%  { opacity:1; transform: translate(0,0) scale(1) rotate(0); }
  94%,100% { opacity:0; transform: translate(30px,-16px) scale(.82) rotate(3deg); }
}
/* World: 아래에서 떠올라 맺힘 */
@keyframes worldIn {
  0%,14%   { opacity:0; transform: translateY(24px) scale(.9); }
  38%,70%  { opacity:1; transform: translateY(0) scale(1); }
  92%,100% { opacity:0; transform: translateY(24px) scale(.9); }
}
/* 빛가루: 모이며 반짝, 풀어지며 흩어짐 */
@keyframes sparkIn {
  0%,100% { opacity:.14; transform: translate(0,0) scale(.8); }
  30%     { opacity:.85; transform: translate(0,0) scale(1); }
  50%     { opacity:.5;  transform: translate(0,-8px) scale(1); }
  70%     { opacity:.85; transform: translate(0,0) scale(1); }
}

/* 모션 최소화: 맺힌 IDONG World 정지 표시 */
@media (prefers-reduced-motion: reduce) {
  .m-spark { opacity: 0; }
  .m-ido, .m-ng, .morph .m-world { opacity: 1; transform: none; animation: none; }
  .morph__float { animation: none; }
}
.hero__caption {
  margin: var(--spacing-16) 0 0; color: var(--on-canvas-dim);
  font-family: var(--font-tnt); font-size: 13px; letter-spacing: 0.06em;
}

/* ── K-pop 시계 ── */
.kicker {
  font-family: var(--font-control); font-weight: 700;
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--on-canvas-dim); margin: 0 0 var(--spacing-16);
}
.clock { margin-top: var(--spacing-48); padding: 0; }
.clock__face {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-cards);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  padding: var(--spacing-32) var(--spacing-20) var(--spacing-20);
}
.clock__row { display: block; text-align: center; position: relative; }
/* 슬롯 표식(時/分) — 큰 숫자말 옆 작은 한자 */
.clock__slot-tag {
  display: inline-block; font-family: var(--font-tnt);
  font-size: 12px; color: var(--on-canvas-dim); opacity: 0.7;
  letter-spacing: 0.1em; margin-bottom: 2px;
}
/* 숫자말 = 큰 글씨 (포인트, 보라→핑크→빨강 K-pop 그라데이션) */
.clock__big {
  display: block; width: 100%;
  font-family: var(--font-ko-display);
  font-size: clamp(40px, 13vw, 60px); line-height: 1.05;
  word-break: keep-all;
  /* 그라데이션 텍스트 */
  background-image: var(--clock-gradient);
  background-size: 220% 220%;
  background-position: 0% 50%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 2px 16px rgba(199, 73, 181, 0.35));
  /* 은은한 느린 시머(같은 계열만 이동) — 끄려면 animation 한 줄 제거 */
  animation: kpopShimmer 6.72s ease-in-out infinite;
}
@keyframes kpopShimmer {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
/* 가사 한 문장 = 매우 작은 글씨 */
.clock__lyric {
  display: block; width: 100%; margin-top: 10px;
  font-family: var(--font-ko-display);
  font-size: 14px; line-height: 1.4; color: var(--on-canvas);
  word-break: keep-all; opacity: 0.95;
}
/* 출처 = 매우 작은 글씨 */
.clock__src {
  display: block; margin-top: 3px;
  font-family: var(--font-control); font-size: 11px; color: var(--on-canvas-dim);
  opacity: 0.8;
}
.clock__divider {
  height: 1px; margin: var(--spacing-20) auto; width: 60%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}
.clock__digital {
  margin-top: var(--spacing-20); font-family: var(--font-tnt);
  font-size: 14px; letter-spacing: 0.3em; color: var(--on-canvas-dim);
}
.scroll-cue {
  display: inline-block; margin-top: var(--spacing-32);
  color: var(--on-canvas-dim); font-size: 20px; text-decoration: none;
  animation: bounce 1.12s infinite;
}
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(6px)} }

/* ── 별빛 언어 선택 ── */
.section-title {
  font-family: var(--font-cursive); font-weight: 700;
  font-size: clamp(28px, 8vw, 40px); line-height: 1.15;
  color: var(--on-canvas); margin: 0 0 var(--spacing-12);
  white-space: pre-line; /* 문구의 \n 을 줄바꿈으로 */
}
:lang(ko) .section-title, body[data-lang="ko"] .section-title { font-family: var(--font-ko-display); font-weight: 400; }
.section-hint { font-size: 13px; color: var(--on-canvas-dim); margin: 0 0 var(--spacing-32); }

.starfield { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 8px; }
.star-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--radius-lg);
  cursor: pointer; transition: background 0.14s; min-width: 0;
  opacity: 0; animation: fadeUp 0.336s ease forwards;
}
body[dir="rtl"] .star-item { flex-direction: row-reverse; }
.star-item:hover { background: rgba(255,255,255,0.08); }
.star-item.is-active { background: rgba(43,127,255,0.18); }
.star-dot {
  width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
  background: #fff; box-shadow: 0 0 12px 3px var(--star-glow);
  animation: twinkle 1.68s infinite ease-in-out;
  transition: transform 0.168s, box-shadow 0.168s;
}
.star-item:hover .star-dot { transform: scale(1.6); }
.star-dot.clicked { transform: scale(2.4); box-shadow: 0 0 26px 9px var(--star-glow); }
.star-name { font-size: 15px; color: var(--on-canvas-dim); transition: color 0.14s; }
.star-item:hover .star-name, .star-item.is-active .star-name { color: var(--on-canvas); }
@keyframes twinkle { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.35;transform:scale(.7)} }
@keyframes fadeUp { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)} }

/* ── 프로스티드 글라스 카드 (설명·반짝섬) ── */
.glass-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-cards); padding: var(--spacing-32) var(--spacing-24);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  text-align: center;
}
.glass-card--island { background: rgba(43,127,255,0.12); }
.body-text {
  font-size: 15px; line-height: 1.6; color: var(--on-canvas);
  margin: 0; white-space: pre-line;
}

/* ── ★ 아이동월드 위키 바로가기 (LIVE, 큼지막한 카드) ── */
.wiki-cta { padding-top: var(--spacing-32); padding-bottom: var(--spacing-32); }
.wiki-card {
  display: block; position: relative; text-align: center; text-decoration: none;
  color: var(--on-canvas);
  background: linear-gradient(160deg, rgba(255,218,150,0.22), rgba(255,255,255,0.12));
  border: 1px solid rgba(255,232,188,0.55);
  border-radius: var(--radius-cards);
  padding: var(--spacing-32) var(--spacing-24) var(--spacing-24);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 12px 36px rgba(20,40,70,0.30);
  overflow: hidden;
  transition: transform 0.14s cubic-bezier(.2,.8,.2,1), box-shadow 0.14s;
}
.wiki-card:hover { transform: translateY(-4px); box-shadow: 0 18px 46px rgba(20,40,70,0.36); }
.wiki-card:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.wiki-badge {
  display: inline-block; margin-bottom: var(--spacing-16);
  font-family: var(--font-tnt); font-size: 11px; font-weight: 700; letter-spacing: 0.16em;
  color: #5a3d00; background: linear-gradient(90deg, #ffe08a, #ffb347);
  padding: 5px 13px; border-radius: 9999px;
  box-shadow: 0 4px 14px rgba(255,170,60,0.45);
}
.wiki-title { margin-bottom: 0; }
/* 캐릭터 클러스터 (둥근 화이트 아바타) */
.aidong-cluster {
  display: flex; justify-content: center; align-items: flex-end;
  margin: var(--spacing-24) 0 var(--spacing-20); height: 100px;
  animation: aidongFloat 2.8s ease-in-out infinite;
}
.aidong-ava {
  width: 84px; height: 84px; border-radius: 50%;
  object-fit: cover; background: #fff; border: 3px solid #fff;
  box-shadow: 0 8px 20px rgba(20,40,70,0.30);
}
.aidong-ava + .aidong-ava { margin-left: -18px; }
.aidong-ava.a1 { transform: rotate(-7deg); z-index: 1; }
.aidong-ava.a2 { width: 92px; height: 92px; transform: translateY(-12px) rotate(-2deg); z-index: 3; }
.aidong-ava.a3 { width: 92px; height: 92px; transform: translateY(-12px) rotate(2deg);  z-index: 2; }
.aidong-ava.a4 { transform: rotate(7deg); z-index: 1; }
@keyframes aidongFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
/* 큼지막한 액션 버튼 (준비중과 달리 활성·솔리드) */
.wiki-btn {
  display: inline-block; margin-top: var(--spacing-8);
  font-family: var(--font-control); font-weight: 700; font-size: 16px;
  color: #fff; background: var(--color-action-blue);
  border-radius: 9999px; padding: 15px 32px; letter-spacing: 0.02em;
  box-shadow: 0 10px 26px rgba(43,127,255,0.45);
  transition: background 0.112s, box-shadow 0.112s;
}
.wiki-card:hover .wiki-btn { background: #1f6fff; box-shadow: 0 14px 32px rgba(43,127,255,0.55); }
@media (prefers-reduced-motion: reduce) { .aidong-cluster { animation: none; } }

/* ── 준비중 버튼 (Air 아웃라인 액션) ── */
.cta { text-align: center; }
.cta__btn {
  font-family: var(--font-control); font-weight: 700; font-size: 15px;
  color: var(--color-action-blue); background: transparent;
  border: 1px solid var(--color-action-blue); border-radius: 9999px;
  padding: 14px 28px; cursor: not-allowed; letter-spacing: 0.02em;
  box-shadow: 0 0 0 0 rgba(43,127,255,0.4); animation: pulse 1.456s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(43,127,255,0.45); }
  70%  { box-shadow: 0 0 0 14px rgba(43,127,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(43,127,255,0); }
}

/* ── 한국콘텐츠진흥원 지원 크레딧 ── */
.support { margin-top: var(--spacing-32); text-align: center; }
.support__label {
  margin: 0 0 var(--spacing-12); font-size: 12px; letter-spacing: 0.02em;
  color: var(--on-canvas-dim);
}
.support__logo {
  display: inline-block; width: min(230px, 72%); height: auto;
  background: var(--color-cloud-white); border-radius: 12px;
  padding: 10px 16px; box-sizing: border-box;
  box-shadow: 0 4px 18px rgba(0,0,0,0.14);
}

/* ── 사업자 정보 ── */
.biz {
  text-align: center; padding: var(--spacing-48) var(--spacing-24) var(--spacing-80);
  color: var(--on-canvas-dim); font-size: 12px; line-height: 1.7;
}
.biz__copyright { margin: 0; font-weight: 700; color: var(--on-canvas); letter-spacing: 0.04em; }
.biz__rights { margin: 2px 0 var(--spacing-16); }
.biz__info { margin: 0; font-size: 11px; line-height: 1.8; opacity: 0.8; word-break: keep-all; }

/* ── 반응형: 데스크탑/태블릿에서도 모바일 카드 느낌 유지 ── */
@media (min-width: 640px) {
  .wordmark__line1 { font-size: 128px; }
  .wordmark__line2 { font-size: 80px; }
  section { padding-left: var(--spacing-32); padding-right: var(--spacing-32); }
}

@media (prefers-reduced-motion: reduce) {
  .cloud, .star-dot, .scroll-cue, .cta__btn, .clock__big { animation: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
 * 생기 업그레이드 — 컬러풀 오로라 글로우 · 반짝 별 · 떠오르는 반짝이 · 글로우 강조
 * (밤하늘 톤 유지, prefers-reduced-motion 존중)
 * ============================================================ */
.sky .aurora{
  position:absolute; border-radius:50%; filter:blur(215px);
  opacity:.55; mix-blend-mode:screen; animation:auroraDrift 13.44s ease-in-out infinite;
}
.sky .au1{width:1560px;height:1560px;left:-110px;top:-130px;background:#a855f7;animation-duration:14.56s;}
.sky .au2{width:1680px;height:1680px;right:-150px;top:40px;background:#22d3ee;animation-duration:17.36s;animation-delay:-4.48s;}
.sky .au3{width:1440px;height:1440px;left:32%;bottom:-180px;background:#f472b6;animation-duration:15.68s;animation-delay:-8.4s;}
@keyframes auroraDrift{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(180px,133px) scale(1.17)}
  66%{transform:translate(-138px,85px) scale(.93)}
}
.sky .skystars{
  position:absolute; inset:0;
  background-image:
    radial-gradient(2px 2px at 18% 22%, rgba(255,255,255,.95), transparent),
    radial-gradient(2px 2px at 68% 16%, rgba(255,255,255,.85), transparent),
    radial-gradient(1.5px 1.5px at 38% 62%, rgba(255,255,255,.9), transparent),
    radial-gradient(2px 2px at 83% 52%, rgba(255,255,255,.85), transparent),
    radial-gradient(1.5px 1.5px at 52% 38%, rgba(255,255,255,.8), transparent),
    radial-gradient(2px 2px at 12% 74%, rgba(255,255,255,.85), transparent),
    radial-gradient(1.5px 1.5px at 90% 80%, rgba(255,255,255,.8), transparent);
  animation:skyTwinkle 2.016s ease-in-out infinite;
}
@keyframes skyTwinkle{0%,100%{opacity:.55}50%{opacity:1}}
.sky .wspark{
  position:absolute; bottom:-24px; color:#fff; font-size:48px; opacity:0;
  animation:wfloat linear infinite; filter:drop-shadow(0 0 6px rgba(255,255,255,.9));
}
@keyframes wfloat{
  0%{transform:translateY(0) rotate(0);opacity:0}
  12%{opacity:1}88%{opacity:1}
  100%{transform:translateY(-112vh) rotate(160deg);opacity:0}
}

/* 시계 숫자 글로우 강조 */
.clock__big{filter:drop-shadow(0 0 24px rgba(244,63,94,.5)) drop-shadow(0 0 48px rgba(217,70,239,.3));}

/* 위키 카드/버튼 컬러 글로우 */
.wiki-card{transition:transform 0.134s cubic-bezier(.2,.8,.2,1), box-shadow 0.134s;}
.wiki-card:hover{transform:translateY(-6px) scale(1.01);}
.wiki-btn{animation:wikiGlow 1.68s ease-in-out infinite;}
@keyframes wikiGlow{
  0%,100%{box-shadow:0 8px 22px rgba(43,127,255,.34)}
  50%{box-shadow:0 14px 41px rgba(43,127,255,.62), 0 0 0 5px rgba(43,127,255,.14)}
}

@media (prefers-reduced-motion: reduce){
  .sky .aurora, .sky .skystars, .sky .wspark, .wiki-btn { animation:none; }
}