/* 3D 화면 공통 (타워 광장·우리 집) */
body.world{background:#1B1F38;overflow:hidden}
.world .stage{position:relative;height:calc(100vh - 61px);height:calc(100dvh - 61px);overflow:hidden;background:#1B1F38}
.cv{display:block;width:100%;height:100%;touch-action:none;outline:none;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}
.zoom{position:absolute;right:12px;top:12px;display:flex;flex-direction:column;gap:8px;z-index:5}
.zoom button,.side button{width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(36,38,61,.82);color:#fff;font-size:22px;cursor:pointer;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:grid;place-items:center}
.zoom button svg{width:20px;height:20px}
.side{position:absolute;right:12px;bottom:calc(16px + env(safe-area-inset-bottom));display:flex;flex-direction:column;align-items:center;gap:10px;z-index:5}
.side .sb{display:flex;flex-direction:column;align-items:center;gap:3px;background:none;border:0;padding:0;width:auto;height:auto;color:#fff;font-size:11px;cursor:pointer;text-shadow:0 1px 4px rgba(0,0,0,.7)}
.side .sb i{width:50px;height:50px;border-radius:50%;display:grid;place-items:center;background:rgba(36,38,61,.85);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.side .sb i svg{width:22px;height:22px}
.side .sb.big i{width:64px;height:64px;background:linear-gradient(135deg,#ff6f91,#d9365f);border:2px solid #ffd0dc;box-shadow:0 6px 20px rgba(217,54,95,.55)}
.side .sb.big i svg{width:30px;height:30px}
.side .sb:active i{transform:scale(.92)}
.hintbar{position:absolute;left:50%;top:62px;transform:translateX(-50%);z-index:7;width:max-content;max-width:min(300px,calc(100% - 32px));text-align:center;font-size:13px;line-height:1.5;color:#fff;background:rgba(20,14,36,.62);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);padding:8px 16px;border-radius:22px;pointer-events:none;transition:opacity .5s,transform .5s;border:1px solid rgba(255,255,255,.16);box-shadow:0 6px 18px rgba(0,0,0,.25)}
.hintbar b{color:#ffd0dc}
.hintbar.off{opacity:0;transform:translate(-50%,-6px)}
.tower-page .hintbar{top:30%}
.prompt[hidden]{display:none}
.prompt{position:absolute;left:50%;bottom:calc(150px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:6;white-space:nowrap;box-shadow:0 8px 24px rgba(0,0,0,.4);animation:pop .3s ease-out}
@keyframes pop{from{transform:translateX(-50%) scale(.8);opacity:0}to{transform:translateX(-50%) scale(1);opacity:1}}
@media (min-width:900px){.prompt{bottom:32px}}
/* 조이스틱 (네이처스냅 추모관 joystick.js 와 같은 방식) */
.joystick{position:absolute;left:18px;bottom:calc(18px + env(safe-area-inset-bottom));width:116px;height:116px;border-radius:50%;background:rgba(255,255,255,.14);border:1.5px solid rgba(255,255,255,.3);touch-action:none;user-select:none;-webkit-user-select:none;z-index:5;display:none;align-items:center;justify-content:center;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.joystick-knob{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,#ff9fb6,#d9365f);box-shadow:0 2px 10px rgba(0,0,0,.35);transition:transform .12s ease-out;pointer-events:none}
.joystick.active .joystick-knob{transition:none}
@media (pointer:coarse){.joystick{display:flex}}
.deco-on .joystick,.sheet-on .joystick{visibility:hidden}
/* 아래에서 올라오는 카드 */
.sheet{position:absolute;left:0;right:0;bottom:0;background:var(--surface);color:var(--text);border-radius:24px 24px 0 0;padding:14px 18px calc(18px + env(safe-area-inset-bottom));transform:translateY(105%);transition:transform .35s cubic-bezier(.2,.8,.2,1);max-height:80%;overflow:auto;box-shadow:0 -10px 40px rgba(0,0,0,.4);z-index:10}
.sheet.on{transform:none}
.sheet .grab{width:44px;height:5px;border-radius:3px;background:var(--line);margin:0 auto 12px}
.sheet .x{position:absolute;right:10px;top:8px;width:44px;height:44px;border-radius:50%;border:0;background:none;color:var(--muted);font-size:24px;cursor:pointer}
.sheet h3{margin:0 0 8px;font-family:var(--serif);font-size:19px}
.sheet .top{display:flex;gap:14px;align-items:center}
.sheet .top svg{width:58px;height:70px;flex:none;overflow:visible}
.sheet .names{font-family:var(--serif);font-size:22px;font-weight:700;line-height:1.3;padding-right:36px}
.sheet .when{color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}
.sheet .song{margin:12px 0 4px;font-family:var(--serif);font-size:19px}
.sheet .engr{font-size:13px;color:var(--gold)}
.sheet .acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.sheet .acts .btn{flex:1 1 100%;white-space:nowrap;font-size:16px}
.yt{margin-top:12px;aspect-ratio:16/9;border-radius:16px;background:linear-gradient(135deg,#2B2147,#4A2440);display:grid;place-items:center;color:#D9CCE6;font-size:14px;text-align:center;position:relative;overflow:hidden}
.yt .pl{width:64px;height:44px;border-radius:12px;background:rgba(255,255,255,.18);display:grid;place-items:center;margin:0 auto 8px}
.yt .pl svg{width:22px;height:22px;fill:#fff}
.heart-btn{display:inline-flex;align-items:center;gap:6px;height:44px;padding:0 16px;border-radius:22px;border:1px solid var(--line);background:var(--surface);cursor:pointer;color:var(--text);font-size:15px}
.heart-btn svg{width:20px;height:20px;transition:transform .2s}
.heart-btn[aria-pressed="true"] svg{fill:var(--accent);stroke:var(--accent);transform:scale(1.15)}
.mine-tag{display:inline-block;font-size:12px;background:var(--gold);color:#2B1E24;border-radius:10px;padding:1px 8px;margin-left:6px;vertical-align:middle;font-family:var(--sans)}
@media (min-width:900px){
  .sheet{left:auto;right:16px;bottom:16px;top:16px;width:380px;border-radius:24px;transform:translateX(420px);max-height:none}
  .sheet.on{transform:none}
  .sheet .grab{display:none}
  .sheet-on .zoom,.sheet-on .side{right:410px}
  .drawer{top:auto;max-height:70%}
}
.fallback{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:#fff;padding:24px}

/* 3D 화면이 끊겼을 때 (카톡 다녀온 뒤 등) */
.gl-lost{position:fixed;inset:0;z-index:90;display:grid;place-items:center;background:rgba(20,16,36,.82);color:#fff;text-align:center;padding:24px}
.gl-lost[hidden]{display:none}
.gl-lost p{margin:0 0 12px}

/* 오른쪽 단추 접기: 이사·같이 있기·엘리베이터는 '더보기' 안에 */
.side .more{display:none;flex-direction:column;align-items:center;gap:10px}
.side.open .more{display:flex;animation:moreIn .2s ease-out}
@keyframes moreIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.side.open #bMore i{background:var(--accent-fill,#d9365f)}
.zoom .zview{color:#fff}
/* 점프·몸짓 단추 (오른쪽 아래, 단추 줄 왼쪽에 2x2) */
.emotes{position:absolute;right:78px;bottom:calc(16px + env(safe-area-inset-bottom));z-index:5;display:grid;grid-template-columns:44px 44px;gap:8px}
.emotes button{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.22);background:rgba(36,38,61,.78);display:grid;place-items:center;cursor:pointer;padding:0;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);box-shadow:0 4px 12px rgba(0,0,0,.25);transition:transform .12s}
.emotes button svg{width:22px;height:22px}
.emotes button:active{transform:scale(.88)}
.emotes button.pop{animation:emoPop .35s ease-out}
@keyframes emoPop{40%{transform:scale(1.18)}}
.emotes button[data-emo="jump"]{background:linear-gradient(135deg,#7fa6ff,#8b5bd6)}
.deco-on .emotes,.sheet-on .emotes{display:none}
.together-on .emotes{bottom:calc(72px + env(safe-area-inset-bottom))}
/* 작은 화면(아이폰 SE 등) */
@media (max-height:700px){
  .zoom button:not(.zview):not(.zhelp){display:none}
  .side{gap:10px}
  .side .sb{font-size:12px}
  .side .sb i{width:44px;height:44px}
  .side .sb.big i{width:64px;height:64px}
  .emotes{grid-template-columns:40px 40px;gap:6px;right:72px}
  .emotes button{width:40px;height:40px}
}
/* 타워 자물쇠 카드는 휴대폰에서 화면 절반까지만 */
@media (max-width:899px){.sheet[data-i18n-attr*="tower.sheetLabel"]{max-height:50vh}}

/* ===== 2라운드: 로블록스식 버튼 배치 ===== */
body.world{--serif:var(--sans)}
.zoom .zhelp{font-size:18px;font-weight:700}
.side{bottom:calc(104px + env(safe-area-inset-bottom))}
.side .sb .lb{display:block;padding:1px 8px;border-radius:9px;background:rgba(23,20,48,.72);text-shadow:none;line-height:1.5;white-space:nowrap}
.side .sb i{position:relative}
.side .sb .gg{position:absolute;inset:-5px;border-radius:50%;background:conic-gradient(#FFD38A calc(var(--p,0)*1%),rgba(255,255,255,.18) 0);-webkit-mask:radial-gradient(farthest-side,transparent calc(100% - 4px),#000 calc(100% - 3.5px));mask:radial-gradient(farthest-side,transparent calc(100% - 4px),#000 calc(100% - 3.5px));pointer-events:none}
.side .sb.big i{width:54px;height:54px}
.side .sb.big i svg{width:26px;height:26px}
.jumpbtn{position:absolute;right:12px;bottom:calc(14px + env(safe-area-inset-bottom));z-index:6;width:78px;height:78px;border-radius:50%;border:2px solid rgba(255,255,255,.55);background:linear-gradient(145deg,#8fb2ff,#7a5ad8);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;font:700 12px var(--sans);cursor:pointer;box-shadow:0 8px 22px rgba(90,70,200,.45);touch-action:manipulation;transition:transform .1s}
.jumpbtn svg{width:32px;height:32px}
.jumpbtn:active{transform:scale(.9)}
.emo{position:absolute;right:102px;bottom:calc(20px + env(safe-area-inset-bottom));z-index:6;width:60px;height:60px}
.emo>button{position:absolute;left:0;top:0;width:60px;height:60px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(36,38,61,.86);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font:700 11px var(--sans);cursor:pointer;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);box-shadow:0 6px 16px rgba(0,0,0,.3);transition:transform .25s cubic-bezier(.2,.9,.3,1.3),opacity .2s;z-index:2}
.emo>button svg{width:26px;height:26px}
.emo .fan{position:absolute;left:8px;top:8px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(36,38,61,.9);display:grid;place-items:center;opacity:0;pointer-events:none;transform:none;transition:transform .28s cubic-bezier(.2,.9,.3,1.3),opacity .2s;z-index:1;padding:0;cursor:pointer}
.emo .fan svg{width:22px;height:22px}
.emo.open .fan{opacity:1;pointer-events:auto}
.emo.open .fan:nth-of-type(2){transform:translate(-4px,-74px)}
.emo.open .fan:nth-of-type(3){transform:translate(-58px,-52px)}
.emo.open .fan:nth-of-type(4){transform:translate(-76px,4px)}
.emo.open>button.emo-main{background:var(--accent-fill,#c93f58)}
.emo .fan.pop{animation:emoPop .35s ease-out}
.deco-on .jumpbtn,.deco-on .emo,.sheet-on .jumpbtn,.sheet-on .emo{display:none}
.together-on .side{bottom:calc(104px + env(safe-area-inset-bottom))}
/* 3D 화면 알림은 위쪽(버튼·조이스틱을 가리지 않게) */
body.world .toast{top:calc(118px + env(safe-area-inset-top));bottom:auto;transform:translate(-50%,-14px);max-width:min(340px,calc(100% - 32px));font-size:14px;padding:10px 16px;background:rgba(36,30,58,.94);border:1px solid rgba(255,255,255,.14)}
body.world .toast.on{transform:translate(-50%,0)}
@media (max-height:700px){.side .sb i{width:44px;height:44px}.side .sb.big i{width:50px;height:50px}.jumpbtn{width:70px;height:70px}.emo{right:92px}}
.tower-page .side{bottom:calc(16px + env(safe-area-inset-bottom))}