:root{
  --ink:#05040a; --panel:#0d0a10; --bone:#e6dcc8; --bone-dim:#a99c88;
  --rust:#a33b2e; --ember:#c14a2f; --gold:#d8b26a; --blood:#6e1423;
  --moon:#b8c4d0; --line:rgba(216,178,106,.28); --mood:.15;
  --disp:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',serif;
  --body:'Yu Mincho','Hiragino Mincho ProN','Noto Serif JP',serif;
  --ui:'Yu Gothic UI','Hiragino Kaku Gothic ProN','Meiryo',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
button{font:inherit}
html,body{min-height:100%;background:#000;overflow-x:hidden;overflow-y:auto}
body{font-family:var(--body);color:var(--bone);user-select:text}
#stage{position:relative;min-height:100vh;min-height:100svh;height:100vh;height:100svh;overflow:hidden;background:var(--ink)}
.bg{position:absolute;inset:-3%;background-size:cover;background-position:center;opacity:0;
  background-color:#110d13;
  transition:opacity 1.5s ease;
  filter:brightness(calc(1 - var(--mood)*.14)) saturate(calc(1 + var(--mood)*.55)) contrast(calc(1 + var(--mood)*.18)) hue-rotate(calc(var(--mood)*-10deg));
  animation:breathe 30s ease-in-out infinite alternate}
.bg.on{opacity:1}
@keyframes breathe{from{transform:scale(1)}to{transform:scale(1.05)}}
#moodOverlay{position:absolute;inset:0;pointer-events:none;opacity:calc(var(--mood)*.8);transition:opacity 2.5s ease;
  background:radial-gradient(135% 95% at 50% 118%, rgba(110,20,35,.6), transparent 55%),
  radial-gradient(95% 75% at 6% -12%, rgba(110,20,35,.4), transparent 60%),
  radial-gradient(95% 75% at 96% -6%, rgba(110,20,35,.4), transparent 60%)}
#fx{position:absolute;inset:0;pointer-events:none}
#vignette{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 75% 70% at 50% 48%, transparent 38%, rgba(0,0,0,.55) 78%, rgba(0,0,0,.92) 100%)}
#noise{position:absolute;inset:-50%;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 1.1s steps(4) infinite}
@keyframes grain{0%{transform:translate(0,0)}25%{transform:translate(-3%,2%)}50%{transform:translate(2%,-2%)}75%{transform:translate(-2%,-3%)}100%{transform:translate(3%,2%)}}
#fade{position:absolute;inset:0;background:#000;opacity:0;pointer-events:none;transition:opacity .55s ease;z-index:60}
.hidden{display:none!important}

/* ---------- TITLE ---------- */
#title{position:absolute;inset:0;z-index:30;display:flex;flex-direction:column;align-items:center;justify-content:center;overflow:auto;
  text-align:center;padding:6vh 6vw;background:linear-gradient(180deg,rgba(5,4,10,.35),rgba(5,4,10,.78) 60%,rgba(5,4,10,.95))}
#title .kicker{font-family:var(--ui);letter-spacing:.55em;font-size:clamp(9px,1.4vw,12px);color:var(--ember);
  text-transform:uppercase;margin-bottom:2.4vh;padding-left:.55em;opacity:.85}
#title h1{font-family:var(--disp);font-weight:400;line-height:1.05;color:var(--bone);
  font-size:clamp(46px,11vw,128px);letter-spacing:.06em;text-shadow:0 0 38px rgba(163,59,46,.45),0 4px 0 rgba(0,0,0,.6);
  animation:flick 6s infinite}
@keyframes flick{0%,97%,100%{opacity:1}97.5%{opacity:.55}98.5%{opacity:.85}}
#title .sub{font-family:var(--body);font-weight:600;color:var(--gold);letter-spacing:.32em;
  font-size:clamp(12px,2vw,18px);margin-top:1.6vh}
#title .sub::before,#title .sub::after{content:"―";color:var(--rust);margin:0 .6em;opacity:.7}
#title .warn{max-width:560px;margin:4.4vh auto 0;font-family:var(--ui);font-size:clamp(10px,1.5vw,12.5px);
  line-height:2;color:var(--bone-dim);letter-spacing:.08em;border:1px solid var(--line);
  padding:1.1em 1.4em;background:rgba(13,10,16,.55)}
#title .warn b{color:var(--ember);font-weight:700}
.tbtns{margin-top:4.6vh;display:flex;flex-direction:column;gap:14px;align-items:center;width:min(360px,80vw)}
.tbtn{font-family:var(--disp);font-size:clamp(18px,3vw,26px);letter-spacing:.34em;color:var(--bone);
  background:rgba(13,10,16,.6);border:1px solid var(--line);padding:.55em 2.4em .55em 2.7em;cursor:pointer;
  width:100%;transition:.35s ease;position:relative}
.tbtn:hover{border-color:var(--ember);color:#fff;background:rgba(163,59,46,.16);letter-spacing:.42em;
  box-shadow:0 0 26px rgba(193,74,47,.28)}
.tbtn.ghost{font-family:var(--ui);font-size:clamp(11px,1.6vw,13px);letter-spacing:.3em;color:var(--bone-dim);
  background:transparent;border-color:rgba(230,220,200,.18);padding:.7em 1em}
.tbtn.ghost:hover{color:var(--gold);border-color:var(--gold);background:transparent;box-shadow:none}
#title .foot{position:absolute;bottom:3vh;left:0;right:0;font-family:var(--ui);font-size:clamp(9px,1.3vw,11px);
  letter-spacing:.22em;color:rgba(169,156,136,.55)}
#title .ai-credit{display:inline-block;margin-top:.45em;letter-spacing:.08em;color:rgba(230,220,200,.68)}

/* ---------- HUD ---------- */
#hud{position:absolute;inset:0;z-index:20;display:flex;flex-direction:column;pointer-events:none}
#hud>*{pointer-events:auto}
header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 18px 8px;
  background:linear-gradient(180deg,rgba(5,4,10,.82),transparent)}
.hdr-l,.hdr-r{display:flex;align-items:center;gap:10px}
#loc{flex:1;text-align:center;font-family:var(--disp);font-size:clamp(18px,3.4vw,30px);letter-spacing:.28em;
  color:var(--bone);text-shadow:0 2px 14px rgba(0,0,0,.8);position:relative;padding-bottom:4px;min-width:0;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#loc::after{content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);width:42px;height:2px;
  background:linear-gradient(90deg,transparent,var(--ember),transparent)}
.pill{font-family:var(--ui);font-size:clamp(10px,1.5vw,12px);letter-spacing:.12em;color:var(--bone-dim);
  border:1px solid var(--line);background:rgba(13,10,16,.7);padding:.5em .85em;cursor:pointer;transition:.3s;
  display:flex;align-items:center;gap:7px;white-space:nowrap}
.pill:hover{color:var(--gold);border-color:var(--gold)}
.pill .num{color:var(--ember);font-weight:700}
#meter{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:rgba(13,10,16,.7);
  padding:.4em .7em}
#meter .lbl{font-family:var(--ui);font-size:clamp(9px,1.3vw,11px);letter-spacing:.2em;color:var(--bone-dim)}
#flower{width:26px;height:26px;transition:transform .4s}
#flower.pulse{transform:scale(1.35) rotate(8deg)}
#flower path{transition:fill .8s ease, filter .8s ease}
.pet-off{fill:#241a1c}
.pet-on{fill:url(#petg);filter:drop-shadow(0 0 4px rgba(193,74,47,.6))}
#floatWrap{position:absolute;top:54px;right:18px;pointer-events:none}
.flt{position:absolute;right:0;font-family:var(--ui);font-weight:700;font-size:13px;letter-spacing:.1em;
  animation:flt 1.5s ease forwards;white-space:nowrap}
.flt.up{color:var(--ember)}.flt.down{color:var(--moon)}
@keyframes flt{0%{opacity:0;transform:translateY(6px)}20%{opacity:1}100%{opacity:0;transform:translateY(-26px)}}

#roomNav{display:flex;gap:7px;padding:4px 14px 10px;overflow-x:auto;scrollbar-width:none;
  background:linear-gradient(180deg,rgba(5,4,10,.5),transparent);transition:opacity .4s}
#roomNav::-webkit-scrollbar{display:none}
#roomNav.locked-all{opacity:.35;pointer-events:none}
.chip{flex:0 0 auto;font-family:var(--ui);font-size:clamp(10px,1.5vw,12px);letter-spacing:.1em;color:var(--bone-dim);
  border:1px solid rgba(230,220,200,.2);background:rgba(10,8,12,.72);padding:.45em .95em;cursor:pointer;
  appearance:none;text-align:center;
  transition:.3s;white-space:nowrap}
.chip:hover{color:var(--gold);border-color:var(--gold)}
.chip.cur{color:var(--gold);border-color:var(--gold);background:rgba(216,178,106,.1)}
.chip.lock,.chip:disabled{opacity:.32;cursor:not-allowed}
.chip.lock:hover{color:var(--bone-dim);border-color:rgba(230,220,200,.2)}
.chip.danger{color:#ff7a5c;border-color:var(--ember);animation:pulseR 1.6s infinite}
@keyframes pulseR{0%,100%{box-shadow:0 0 0 rgba(193,74,47,0)}50%{box-shadow:0 0 16px rgba(193,74,47,.55)}}

#hotspots{position:absolute;inset:0;pointer-events:none;z-index:14}
.hs{position:absolute;width:30px;height:30px;margin:-15px 0 0 -15px;pointer-events:auto;cursor:pointer;
  appearance:none;padding:0;background:transparent;color:inherit;
  border:1px solid rgba(216,178,106,.85);transform:rotate(45deg);animation:hsPulse 2.2s ease-in-out infinite}
.hs::after{content:"";position:absolute;inset:9px;background:rgba(216,178,106,.7);border-radius:50%}
.hs:hover{border-color:#fff;box-shadow:0 0 18px rgba(216,178,106,.5)}
.hs .tag{position:absolute;left:50%;top:-12px;transform:translate(-50%,-100%) rotate(-45deg);
  font-family:var(--ui);font-size:11px;letter-spacing:.1em;color:var(--bone);background:rgba(13,10,16,.92);
  border:1px solid var(--line);padding:.25em .7em;white-space:nowrap;opacity:0;transition:.25s;pointer-events:none}
.hs:hover .tag{opacity:1}
@keyframes hsPulse{0%,100%{opacity:.45;transform:rotate(45deg) scale(.9)}50%{opacity:1;transform:rotate(45deg) scale(1.12)}}

/* ---------- TEXTBOX ---------- */
#box{position:absolute;left:0;right:0;bottom:0;min-height:30vh;padding:30px 6vw 26px;cursor:pointer;
  width:100%;font:inherit;color:inherit;text-align:left;border:0;
  background:linear-gradient(180deg,transparent,rgba(5,4,10,.78) 22%,rgba(5,4,10,.96));
  border-top:1px solid rgba(163,59,46,.4);z-index:16}
#speaker{position:absolute;top:-15px;left:6vw;font-family:var(--disp);font-size:clamp(14px,2.4vw,20px);
  letter-spacing:.26em;color:var(--gold);background:var(--panel);border:1px solid var(--line);
  padding:.18em 1.1em;box-shadow:0 4px 14px rgba(0,0,0,.6)}
#speaker.me{color:var(--gold)}
#speaker.mio{color:var(--moon)}
#speaker.who{color:#7a6f66;letter-spacing:.4em}
#speaker.hide{display:none}
#text{font-size:clamp(15px,2.25vw,19px);line-height:2;letter-spacing:.05em;color:var(--bone);min-height:5.4em;
  margin-top:6px;text-shadow:0 1px 8px rgba(0,0,0,.7)}
#text .em{color:#e0563f;font-weight:600;text-shadow:0 0 12px rgba(193,74,47,.4)}
#text .wh{color:#9a8f85;font-size:.86em;letter-spacing:.16em}
#text .gl{display:inline-block;animation:glitch 1.4s infinite steps(2)}
@keyframes glitch{0%,90%,100%{text-shadow:none;transform:none}92%{text-shadow:-2px 0 var(--blood),2px 0 #274a4a;transform:translateX(1px)}95%{text-shadow:2px 0 var(--blood),-2px 0 #274a4a;transform:translateX(-1px)}}
#arrow{position:absolute;right:6vw;bottom:14px;color:var(--ember);font-size:14px;opacity:0;animation:blink 1s infinite}
#arrow.show{opacity:1}
@keyframes blink{0%,100%{opacity:.2}50%{opacity:1}}

/* ---------- CHOICES ---------- */
#choices{position:absolute;left:50%;bottom:32vh;transform:translateX(-50%);width:min(680px,88vw);z-index:25;
  display:flex;flex-direction:column;gap:12px}
.choice{font-family:var(--body);font-weight:600;font-size:clamp(14px,2.1vw,17px);letter-spacing:.06em;color:var(--bone);
  background:rgba(13,10,16,.9);border:1px solid rgba(163,59,46,.5);padding:.85em 1.3em .85em 1.7em;cursor:pointer;
  transition:.3s ease;text-align:left;position:relative;line-height:1.6}
.choice::before{content:"▸";position:absolute;left:.7em;color:var(--ember);opacity:.5;transition:.3s}
.choice:hover{border-color:var(--ember);background:rgba(163,59,46,.16);transform:translateX(8px);
  box-shadow:0 0 22px rgba(193,74,47,.25);color:#fff}
.choice:hover::before{opacity:1;left:.9em}

/* ---------- FRAGMENT MODAL ---------- */
#frag{position:absolute;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;overflow:auto;
  background:rgba(2,1,4,.86);backdrop-filter:blur(3px);padding:5vh 5vw;animation:fadeIn .5s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.frag-card{position:relative;max-width:560px;max-height:84vh;width:100%;padding:34px 30px;
  box-shadow:0 30px 80px rgba(0,0,0,.8);animation:rise .6s ease}
@keyframes rise{from{transform:translateY(20px);opacity:0}to{transform:none;opacity:1}}
.frag-card.paper{background:linear-gradient(150deg,#e3d8bd,#cdbf9f 60%,#bcae8c);color:#2a2018;
  border:1px solid #8a7a55}
.frag-card.dark{background:linear-gradient(150deg,#15100f,#0c0908);color:var(--bone);border:1px solid var(--line)}
.frag-card .ftitle{font-family:var(--disp);font-size:clamp(18px,3vw,26px);letter-spacing:.2em;margin-bottom:14px;
  border-bottom:1px solid rgba(0,0,0,.25);padding-bottom:10px}
.frag-card.dark .ftitle{color:var(--gold);border-color:var(--line)}
.frag-card .fbody{font-size:clamp(14px,2.1vw,17px);line-height:2.1;letter-spacing:.06em}
.frag-card.paper .fbody.vert{writing-mode:vertical-rl;height:min(56vh,520px);text-align:justify;
  font-weight:600;letter-spacing:.1em}
.frag-card.dark .fbody{font-style:italic;color:#cdbfa6}
.frag-card .fbody .em{color:#9a2418;font-weight:800}
.frag-card.dark .fbody .em{color:#e0563f}
.frag-card .fbody p{margin-bottom:1em}
.frag-card .fbody.vert p{margin:0 0 0 1.4em}
.frag-close{position:absolute;top:10px;right:14px;font-family:var(--ui);font-size:12px;letter-spacing:.2em;
  cursor:pointer;color:inherit;opacity:.6;background:none;border:none}
.frag-close:hover{opacity:1}
.frag-tag{font-family:var(--ui);font-size:10px;letter-spacing:.3em;opacity:.6;margin-bottom:8px}

/* ---------- ENDING ---------- */
#ending{position:absolute;inset:0;z-index:40;display:flex;flex-direction:column;align-items:center;justify-content:center;overflow:auto;
  text-align:center;padding:8vh 7vw;background:rgba(3,2,5,.55)}
#ending .ebg{position:absolute;inset:-3%;background-size:cover;background-position:center;background-color:#110d13;z-index:-1;
  animation:breathe 30s ease-in-out infinite alternate}
#ending.e-doukoku .ebg{filter:grayscale(.85) brightness(.5) contrast(1.1)}
#ending.e-soukai .ebg{filter:saturate(1.6) brightness(.45) hue-rotate(-12deg) contrast(1.2)}
#ending.e-kaihou .ebg{filter:brightness(1.25) saturate(.8) sepia(.25)}
#ending.e-true .ebg{filter:brightness(.85) saturate(1.2);box-shadow:inset 0 0 200px rgba(216,178,106,.25)}
#ending .etag{font-family:var(--ui);letter-spacing:.5em;font-size:clamp(10px,1.5vw,13px);color:var(--ember)}
#ending h2{font-family:var(--disp);font-size:clamp(40px,9vw,96px);letter-spacing:.14em;color:var(--bone);
  margin:.2em 0 .1em;text-shadow:0 0 40px rgba(163,59,46,.5)}
#ending.e-true h2{color:var(--gold);text-shadow:0 0 50px rgba(216,178,106,.5)}
#ending .esub{font-family:var(--body);font-weight:600;letter-spacing:.3em;color:var(--gold);font-size:clamp(12px,2vw,17px)}
#ending .elines{max-width:620px;margin:4vh auto 0;display:flex;flex-direction:column;gap:1.1em}
#ending .eline{font-size:clamp(14px,2.1vw,18px);line-height:2;letter-spacing:.06em;color:var(--bone);
  opacity:0;transform:translateY(10px);transition:opacity 1.4s ease,transform 1.4s ease}
#ending .eline.show{opacity:1;transform:none}
#ending .eline .em{color:#e0563f;font-weight:600}
#ending .ebtns{margin-top:5vh;display:flex;gap:14px;flex-wrap:wrap;justify-content:center;opacity:0;transition:opacity 1s}
#ending .ebtns.show{opacity:1}

/* ---------- END LIST MODAL ---------- */
#endlist{position:absolute;inset:0;z-index:55;display:flex;align-items:center;justify-content:center;overflow:auto;
  background:rgba(2,1,4,.9);padding:5vh 5vw;animation:fadeIn .4s}
.el-box{width:min(560px,92vw);max-height:90vh;overflow:auto;border:1px solid var(--line);background:rgba(13,10,16,.95);padding:30px 26px}
.el-box h3{font-family:var(--disp);font-size:clamp(20px,3.4vw,30px);letter-spacing:.24em;color:var(--gold);
  text-align:center;margin-bottom:6px}
.el-box .elc{text-align:center;font-family:var(--ui);font-size:11px;letter-spacing:.2em;color:var(--bone-dim);margin-bottom:20px}
.el-row{display:flex;align-items:center;gap:14px;padding:14px 12px;border:1px solid rgba(230,220,200,.12);margin-bottom:10px}
.el-row.got{border-color:var(--line);background:rgba(163,59,46,.08)}
.el-ico{width:30px;height:30px;flex:0 0 auto;opacity:.25}
.el-row.got .el-ico{opacity:1}
.el-txt .en{font-family:var(--disp);font-size:clamp(16px,2.6vw,22px);letter-spacing:.16em;color:var(--bone)}
.el-row:not(.got) .en{color:#5a5048}
.el-txt .es{font-family:var(--ui);font-size:11px;letter-spacing:.2em;color:var(--bone-dim);margin-top:2px}
.el-close{display:block;margin:18px auto 0}

/* ---------- TOAST ---------- */
#toast{position:absolute;top:96px;left:50%;transform:translateX(-50%);z-index:45;pointer-events:none;
  font-family:var(--ui);font-size:clamp(11px,1.7vw,13px);letter-spacing:.14em;color:var(--gold);
  background:rgba(13,10,16,.92);border:1px solid var(--line);padding:.6em 1.3em;opacity:0;transition:opacity .5s,transform .5s;
  text-align:center;max-width:88vw}
#toast.show{opacity:1;transform:translateX(-50%) translateY(4px)}
#toast.frag{color:#fff;border-color:var(--ember);box-shadow:0 0 22px rgba(193,74,47,.3)}

@media(max-width:640px){
  #box{min-height:34vh;padding:26px 5vw 20px}
  #speaker{left:5vw}
  #arrow{right:5vw}
  #choices{bottom:36vh}
  header{flex-wrap:wrap;gap:6px}
  #loc{order:-1;flex-basis:100%}
}

button:focus-visible,#box:focus-visible,.chip:focus-visible,.hs:focus-visible{
  outline:2px solid var(--gold);outline-offset:3px;box-shadow:0 0 0 4px rgba(5,4,10,.9),0 0 18px rgba(216,178,106,.45)
}

@media(max-width:420px){
  header{padding:9px 10px 6px}
  .hdr-l,.hdr-r{gap:4px}
  .pill{padding:.45em .55em;letter-spacing:.06em}
  #meter{padding:.35em .45em;gap:4px}
  #meter .lbl{letter-spacing:.08em}
  #flower{width:22px;height:22px}
  #roomNav{padding-left:10px;padding-right:10px}
  #box{min-height:38vh;padding-left:5vw;padding-right:5vw}
  #text{font-size:clamp(14px,4.2vw,17px);line-height:1.85;min-height:6em}
  #choices{width:min(92vw,680px);bottom:40vh;gap:8px}
  .choice{font-size:14px;padding:.7em 1em .7em 1.5em}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  #fx,#noise{display:none}
  .bg,#ending .ebg{animation:none!important}
}