/* 마음의 우주 (감정 별자리). 흰 페이지 안의 까만 하늘 창 → "우주로 들어가기"를 누르면 화면 전체가 우주가 된다.
   시안: prototypes/sky/index.html (v4). 다른 화면과 섞이지 않게 모두 sk- 로 시작한다. */
.sk-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-top:28px}
.sk-head .kind{font-size:13px;font-weight:700;color:var(--violet)}
.sk-head h1{margin:6px 0 0;font-size:clamp(30px,3.8vw,46px);font-weight:800;letter-spacing:-.045em;line-height:1.18}
.sk-head p{margin:10px 0 0;color:var(--muted);max-width:600px}
.sk-btn{display:inline-flex;align-items:center;gap:8px;border:0;background:var(--violet);color:#fff;border-radius:12px;padding:12px 20px;font-weight:700;font-size:15px;cursor:pointer;box-shadow:0 6px 16px color-mix(in srgb,var(--violet) 22%,transparent)}
.sk-btn:hover{filter:brightness(1.08)}
.sk-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.sk-note{margin-top:16px;padding:12px 16px;border-radius:10px;background:var(--wash);font-size:13.5px;color:var(--muted)}

/* 하늘 */
.sk-stage{--space:#04050a;--neb1:#5b3fd1;--neb2:#b0357f;--neb3:#1f7fa6;--glass:#0d0e18d9;--glass-line:#ffffff1f;--glass-ink:#eeecf7;--glass-muted:#a7a3b8;
  position:relative;margin-top:18px;height:clamp(460px,64vh,700px);border-radius:24px;overflow:hidden;isolation:isolate;border:1px solid #1d1e2b;color:var(--glass-ink);
  background:radial-gradient(120% 90% at 50% 110%,#0b0c18 0%,transparent 60%),var(--space)}
body.sk-teen .sk-stage{--neb1:#1f9c78;--neb2:#3a6fd8;--neb3:#7a3fc0}
.sk-stage::before{content:'';position:absolute;inset:-30%;z-index:0;pointer-events:none;transform:rotate(-24deg);
  background:linear-gradient(180deg,transparent 38%,#ffffff08 44%,#c8c2ff14 49%,#ffffff10 52%,#ffd9f00a 56%,transparent 63%);filter:blur(10px)}
.sk-aurora{position:absolute;inset:-20%;z-index:0;filter:blur(50px);opacity:.42;mix-blend-mode:screen;pointer-events:none;
  background:radial-gradient(30% 22% at 24% 32%,var(--neb1),transparent 70%),radial-gradient(24% 18% at 74% 24%,var(--neb3),transparent 70%),radial-gradient(28% 20% at 60% 76%,var(--neb2),transparent 70%);
  animation:sk-aur 26s ease-in-out infinite alternate}
@keyframes sk-aur{0%{transform:translate(0,0) rotate(0)}50%{transform:translate(3%,-2%) rotate(4deg)}100%{transform:translate(-3%,2%) rotate(-3deg)}}
.sk-dust{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none}
.sk-world{position:absolute;inset:0;z-index:2;transition:opacity .9s}
.sk-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.sk-lines polyline{fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.sk-lines .ghost{stroke-dasharray:2 6}
.sk-lines .draw{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:sk-draw 1.8s cubic-bezier(.16,1,.3,1) forwards}
@keyframes sk-draw{to{stroke-dashoffset:0}}

.sk-star{position:absolute;left:0;top:0;width:calc(var(--s) * 2.6);height:calc(var(--s) * 2.6);margin:calc(var(--s) * -1.3) 0 0 calc(var(--s) * -1.3);padding:0;border:0;border-radius:50%;cursor:pointer;
  background:radial-gradient(circle,#fff 0 calc(var(--s) * .15),color-mix(in srgb,var(--c) 80%,#fff) calc(var(--s) * .28),color-mix(in srgb,var(--c) 42%,transparent) calc(var(--s) * .5),color-mix(in srgb,var(--c) 12%,transparent) calc(var(--s) * .85),transparent calc(var(--s) * 1.3));
  transition:filter .3s;will-change:transform}
.sk-star::before{content:'';position:absolute;left:50%;top:50%;width:calc(var(--s) * 1.7);height:calc(var(--s) * 1.7);transform:translate(-50%,-50%) rotate(var(--rot,0deg));pointer-events:none;
  background:linear-gradient(90deg,transparent,#fffffff0 47% 53%,transparent) center/100% 1.6px no-repeat,linear-gradient(0deg,transparent,#fffffff0 47% 53%,transparent) center/1.6px 100% no-repeat;animation:sk-tw var(--tw,4s) ease-in-out infinite}
@keyframes sk-tw{50%{opacity:.35;transform:translate(-50%,-50%) rotate(var(--rot,0deg)) scale(.8)}}
.sk-star:hover{filter:brightness(1.15)}
.sk-star.sel{filter:brightness(1.2) drop-shadow(0 0 6px color-mix(in srgb,var(--c) 70%,transparent))}
.sk-star.pop{animation:sk-pop 1.3s cubic-bezier(.16,1,.3,1)}
@keyframes sk-pop{0%{filter:brightness(2.6)}100%{filter:none}}
.sk-star .ring{position:absolute;inset:30%;border-radius:50%;border:2px solid var(--c);opacity:0;pointer-events:none}
.sk-star.pop .ring{animation:sk-ring 1.3s cubic-bezier(.16,1,.3,1)}
@keyframes sk-ring{0%{opacity:.9;transform:scale(1)}100%{opacity:0;transform:scale(3.4)}}
.sk-slot{position:absolute;left:0;top:0;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;border:1.5px dashed color-mix(in srgb,var(--c) 75%,#fff);background:#ffffff0a;padding:0;display:grid;place-items:center;cursor:pointer;transition:background .2s;will-change:transform}
.sk-slot svg{width:10px;height:10px;stroke:#fff;stroke-width:2.4;fill:none;opacity:0;transition:opacity .2s}
.sk-slot:hover,.sk-slot:focus-visible{background:color-mix(in srgb,var(--c) 30%,transparent)}
.sk-slot:hover svg,.sk-slot:focus-visible svg,body.sk-focus .sk-slot.near svg{opacity:1}
body:not(.sk-focus) .sk-slot{opacity:0!important;pointer-events:none}

.sk-name{position:absolute;left:0;top:0;display:flex;flex-direction:column;align-items:center;gap:2px;border:0;background:none;padding:4px 8px;text-align:center;cursor:pointer;color:#f4f2fb;will-change:transform}
.sk-name b{font-size:17px;font-weight:800;letter-spacing:-.02em;text-shadow:0 1px 12px #000}
.sk-name small{font-size:12px;color:var(--glass-muted)}
.sk-name:hover b{color:var(--c)}
.sk-tag{position:absolute;left:0;top:0;width:200px;padding:5px 10px;border-radius:10px;background:var(--glass);border:1px solid color-mix(in srgb,var(--c) 35%,var(--glass-line));color:var(--glass-ink);backdrop-filter:blur(8px);font-size:12.5px;line-height:1.4;text-align:left;box-shadow:0 8px 20px #0008;opacity:0;pointer-events:none;cursor:pointer;transition:opacity .45s;will-change:transform}
.sk-tag b{display:block;font-size:11.5px;color:var(--c)}
.sk-tag span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
body.sk-focus .sk-tag.on{opacity:1;pointer-events:auto}
.sk-chips{display:none;position:absolute;left:0;right:0;bottom:12px;z-index:4;gap:8px;padding:2px 12px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.sk-chips::-webkit-scrollbar{display:none}
.sk-chips .sk-tag{position:static;flex:none;width:200px;opacity:1;pointer-events:auto;scroll-snap-align:start}

.sk-panel{position:absolute;left:20px;top:20px;z-index:4;max-width:330px;padding:16px 18px;border-radius:16px;background:var(--glass);border:1px solid var(--glass-line);backdrop-filter:blur(10px);box-shadow:0 14px 34px #0009;opacity:0;transform:translateY(-8px);pointer-events:none;transition:.45s cubic-bezier(.16,1,.3,1)}
body.sk-focus .sk-panel{opacity:1;transform:none;pointer-events:auto}
.sk-panel h2{margin:0;font-size:22px;letter-spacing:-.03em}
.sk-panel p{margin:6px 0 12px;font-size:14px;color:#c9c5d8}
.sk-panel .sk-btn{padding:10px 16px;font-size:14px}

.sk-peek{position:absolute;z-index:5;width:240px;padding:11px 13px;border-radius:14px;background:var(--glass);border:1px solid var(--glass-line);color:var(--glass-ink);backdrop-filter:blur(8px);box-shadow:0 12px 28px #0009;pointer-events:none;opacity:0;transform:translateY(6px);transition:opacity .18s,transform .18s}
.sk-peek.on{opacity:1;transform:none}
.sk-peek small{font-size:12px;color:var(--c);font-weight:700}
.sk-peek p{margin:3px 0 0;font-size:14px;line-height:1.55}

/* 편지(흰 종이) */
.sk-letter{position:absolute;top:16px;right:16px;bottom:16px;z-index:6;width:min(400px,calc(100% - 32px));display:flex;flex-direction:column;border-radius:18px;background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:0 24px 60px #0008;transform:translateX(24px);opacity:0;pointer-events:none;transition:transform .45s cubic-bezier(.16,1,.3,1),opacity .3s}
.sk-letter.on{transform:none;opacity:1;pointer-events:auto}
.sk-letter header{position:relative;padding:20px 22px 14px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,color-mix(in srgb,var(--c) 10%,#fff),#fff);border-radius:18px 18px 0 0}
.sk-x{position:absolute;right:12px;top:12px;width:34px;height:34px;border-radius:50%;border:0;background:#ffffffcc;display:grid;place-items:center;cursor:pointer}
.sk-x svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}
.sk-from{font-size:12.5px;font-weight:700;color:color-mix(in srgb,var(--c) 70%,#24212c);padding-right:36px}
.sk-title{font-size:12.5px;color:var(--muted);margin-top:2px}
.sk-text{margin:12px 0 0;font-size:18px;line-height:1.75;white-space:pre-line}
.sk-by{display:flex;flex-wrap:wrap;gap:4px 12px;margin-top:10px;font-size:12.5px;color:var(--muted)}
.sk-link{border:0;background:none;padding:0;font-size:12.5px;color:var(--muted);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.sk-replies{flex:1;overflow:auto;padding:12px 22px;display:flex;flex-direction:column;gap:12px}
.sk-replies h3{margin:0;font-size:13px;color:var(--muted);font-weight:600}
.sk-replies .r{font-size:14.5px;line-height:1.6}
.sk-replies .r b{font-size:12.5px;margin-right:6px}
.sk-replies .r small{font-size:11.5px;color:var(--muted);margin-right:8px}
.sk-replies .none{color:var(--muted);font-size:13.5px;margin:0}
.sk-reply{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}
.sk-reply input{flex:1;min-width:0;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:14px}
.sk-reply button{border:0;border-radius:10px;background:var(--violet);color:#fff;padding:0 14px;font-weight:700;font-size:14px;cursor:pointer}
.sk-compose{flex:1;overflow:auto;padding:16px 22px;display:flex;flex-direction:column;gap:10px}
.sk-compose p{margin:0;font-size:13.5px;color:var(--muted)}
.sk-compose textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:16px;line-height:1.7;resize:vertical;min-height:140px}
.sk-compose label{font-size:13px;color:var(--muted)}
.sk-compose input{border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:14px}
.sk-compose .sk-btn{align-self:flex-start}
.sk-compose .dy-consent{margin:0}

.sk-flying{position:absolute;z-index:7;width:16px;height:16px;margin:-8px 0 0 -8px;border-radius:50%;background:radial-gradient(circle,#fff 0 30%,var(--c) 60%,transparent 72%);filter:drop-shadow(0 0 10px var(--c));pointer-events:none}
.sk-trail{position:absolute;z-index:6;width:5px;height:5px;margin:-2.5px 0 0 -2.5px;border-radius:50%;background:var(--c);pointer-events:none;animation:sk-fade .9s forwards}
@keyframes sk-fade{to{opacity:0;transform:scale(.2)}}

/* 들어가기 전: 창 */
.sk-enter{position:absolute;inset:0;z-index:8;display:grid;place-items:center;align-content:center;gap:14px;border:0;background:radial-gradient(60% 50% at 50% 50%,#04050a99,transparent);color:#fff;text-align:center;cursor:pointer}
.sk-enter .ring{width:84px;height:84px;border-radius:50%;display:grid;place-items:center;border:1px solid #ffffff40;background:#ffffff10;backdrop-filter:blur(6px);animation:sk-breathe 3.2s ease-in-out infinite}
.sk-enter .ring svg{width:28px;height:28px;stroke:#fff;stroke-width:1.6;fill:none}
.sk-enter b{font-size:20px;letter-spacing:-.02em}
.sk-enter small{color:#c9c5d8;font-size:14px}
@keyframes sk-breathe{50%{opacity:.5}}
body.sk-night .sk-enter{display:none}
body:not(.sk-night) .sk-world{pointer-events:none;opacity:.6}
.sk-bar{display:none}
/* 밤: 화면 전체 */
body.sk-night{overflow:hidden}
body.sk-night .sk-stage{position:fixed;inset:0;z-index:1100;margin:0;height:100dvh;border-radius:0;border:0}
.sk-veil{position:fixed;inset:0;z-index:1200;background:#04050a;opacity:0;pointer-events:none;transition:opacity .8s ease}
.sk-veil.on{opacity:1}
body.sk-night .sk-bar{position:absolute;left:0;right:0;top:0;z-index:7;display:flex;align-items:center;gap:10px;padding:14px 18px;background:linear-gradient(180deg,#04050acc,transparent)}
.sk-exit{width:40px;height:40px;border-radius:50%;border:1px solid var(--glass-line);background:#ffffff0d;display:grid;place-items:center;color:#fff;cursor:pointer}
.sk-exit svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}
.sk-back{display:none;align-items:center;gap:6px;border:1px solid var(--glass-line);background:#ffffff0d;color:#fff;border-radius:999px;padding:8px 14px;font-size:13.5px;cursor:pointer}
.sk-back svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2}
body.sk-focus .sk-back{display:inline-flex}
.sk-where{font-size:13.5px;color:#c9c5d8;padding:0 6px}
.sk-count{margin-left:auto;display:flex;align-items:baseline;gap:6px}
.sk-count b{font-size:20px;color:#fff;font-variant-numeric:tabular-nums}
.sk-count small{color:#c9c5d8;font-size:13px}
.sk-bar .sk-btn{background:#6e63d6;box-shadow:0 0 24px #6e63d680}
body.sk-teen .sk-bar .sk-btn,body.sk-teen .sk-panel .sk-btn{background:#2f9c70;box-shadow:0 0 24px #2f9c7080}
body.sk-night .sk-panel,body.sk-night .sk-letter{top:76px}
/* 첫 질문 */
.sk-ask{position:absolute;inset:0;z-index:6;display:grid;place-items:center;align-content:center;gap:18px;padding:90px 20px 40px;text-align:center;opacity:0;pointer-events:none;transition:opacity .9s ease .3s}
body.sk-asking .sk-ask{opacity:1;pointer-events:auto}
body.sk-asking .sk-world{opacity:.28}
body.sk-asking .sk-name{opacity:0!important}
.sk-ask h2{margin:0;font-size:clamp(26px,4vw,40px);font-weight:800;letter-spacing:-.04em;color:#fff}
.sk-ask p{margin:0;color:#c9c5d8;font-size:15px}
.sk-feel{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:680px}
.sk-feel button{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:999px;border:1px solid color-mix(in srgb,var(--c) 45%,#ffffff22);background:#ffffff0a;color:#fff;font-size:15.5px;cursor:pointer;transition:background .2s,transform .2s}
.sk-feel button:hover,.sk-feel button:focus-visible{background:color-mix(in srgb,var(--c) 26%,transparent);transform:translateY(-2px)}
.sk-feel i{width:8px;height:8px;border-radius:50%;background:var(--c);box-shadow:0 0 10px var(--c)}
.sk-feel small{color:#a7a3b8;font-size:12.5px}
.sk-browse{border:0;background:none;color:#a7a3b8;text-decoration:underline;text-underline-offset:4px;font-size:14px;cursor:pointer}
.sk-ask .promise{font-size:13px;color:#8e8aa3}
/* 맞아 주기 */
.sk-embrace{position:absolute;left:50%;top:50%;z-index:7;width:min(560px,90%);transform:translate(-50%,-50%) scale(.96);text-align:center;opacity:0;pointer-events:none;transition:opacity .7s ease,transform .9s cubic-bezier(.16,1,.3,1);text-shadow:0 2px 24px #000}
.sk-embrace.on{opacity:1;transform:translate(-50%,-50%)}
.sk-embrace b{display:block;font-size:clamp(24px,3.4vw,36px);font-weight:800;letter-spacing:-.035em;color:#fff}
.sk-embrace span{display:block;margin-top:8px;color:#d9d6e8;font-size:16px}
body.sk-embracing .sk-world{opacity:.22}
.sk-empty{position:absolute;left:50%;top:50%;z-index:3;transform:translate(-50%,-50%);width:min(420px,86%);text-align:center;color:#c9c5d8;font-size:15px}
.sk-empty b{display:block;color:#fff;font-size:20px;margin-bottom:6px}
body.sk-asking .sk-empty,body.sk-focus .sk-empty{display:none}

@media (max-width:820px){.sk-panel{left:12px;right:12px;top:12px;max-width:none;padding:12px 14px}.sk-panel h2{font-size:19px}.sk-panel p{font-size:13px;line-height:1.5;margin:4px 0 10px}.sk-panel .sk-btn{padding:8px 14px;font-size:13px}
  .sk-letter{top:auto!important;height:70%;width:calc(100% - 20px);right:10px;bottom:10px}}
@media (max-width:699px){.sk-world .sk-tag{display:none}body.sk-focus .sk-chips{display:flex}body.sk-night .sk-bar{flex-wrap:wrap;padding:10px 12px}.sk-count,.sk-where{display:none}.sk-bar .sk-btn{margin-left:auto;padding:9px 14px;font-size:14px}body.sk-night .sk-panel{top:112px}}
@media (prefers-reduced-motion:reduce){.sk-stage *,.sk-veil{animation:none!important;transition:none!important}}