/* BooDoor — "Halloween night" look.
   Layout: one phone-width column, one big step per screen, the main action pinned at the bottom;
   receiver screens are full-screen overlays on the same night sky. */
:root{
  --bg0:#140c2c;            /* deepest night */
  --bg1:#24164a;
  --bg2:#4b2c8a;            /* sky glow */
  --txt:#ffffff;
  --muted:rgba(233,226,255,.74);
  --dim:rgba(233,226,255,.48);
  --glass:rgba(255,255,255,.07);
  --glass2:rgba(255,255,255,.12);
  --line:rgba(255,255,255,.15);
  --orange:#FF8A3D;         /* pumpkin: the one accent */
  --orange2:#FF6B2C;
  --orangeInk:#2a1300;
  --mint:#2BD9A5;           /* treat */
  --blood:#FF4F5E;          /* scare */
  --moon:#ffe9a8;
  --display:ui-rounded,"SF Pro Rounded","Arial Rounded MT Bold","Arial Black",system-ui,sans-serif;
  --body:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg0);color:var(--txt);font:16px/1.45 var(--body);-webkit-text-size-adjust:100%;overflow-x:hidden}
[hidden]{display:none!important}
img,svg{max-width:100%}
button{-webkit-tap-highlight-color:transparent}
button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid var(--orange);outline-offset:3px}

/* sky */
.sky{position:fixed;inset:0;z-index:0;overflow:hidden;background:radial-gradient(120% 70% at 50% 30%,var(--bg2) 0%,var(--bg1) 55%,var(--bg0) 100%)}
.moon{position:absolute;top:-64px;right:-58px;width:170px;height:170px;border-radius:50%;background:var(--moon);box-shadow:0 0 90px rgba(255,215,106,.45);opacity:.55}
.stars{position:absolute;inset:0;opacity:.8;background-image:
  radial-gradient(1.6px 1.6px at 8% 10%,#fff,transparent),radial-gradient(1.2px 1.2px at 22% 26%,#fff,transparent),
  radial-gradient(1.4px 1.4px at 38% 8%,#fff,transparent),radial-gradient(1px 1px at 55% 18%,#fff,transparent),
  radial-gradient(1.6px 1.6px at 72% 6%,#fff,transparent),radial-gradient(1.2px 1.2px at 12% 44%,#fff,transparent),
  radial-gradient(1px 1px at 88% 38%,#fff,transparent),radial-gradient(1.4px 1.4px at 30% 60%,#fff,transparent),
  radial-gradient(1px 1px at 64% 52%,#fff,transparent),radial-gradient(1.2px 1.2px at 92% 70%,#fff,transparent),
  radial-gradient(1px 1px at 6% 78%,#fff,transparent),radial-gradient(1.4px 1.4px at 46% 86%,#fff,transparent);
  animation:twinkle 6s ease-in-out infinite}
@keyframes twinkle{50%{opacity:.5}}

/* shell */
.app{position:relative;z-index:1;max-width:460px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;
  padding-inline:20px;padding-top:calc(12px + env(safe-area-inset-top,0px));padding-bottom:calc(16px + env(safe-area-inset-bottom,0px))}
.bar{display:flex;justify-content:space-between;align-items:center;gap:10px;padding-block:6px}
.logo{font:900 24px var(--display);letter-spacing:.3px;background:none;border:0;color:var(--txt);padding:0;cursor:pointer}
.logo span{color:var(--orange)}
.bar-r{display:flex;gap:8px}
.chip-btn{font:800 13px var(--body);color:var(--txt);background:var(--glass2);border:1px solid var(--line);border-radius:999px;padding:8px 13px;cursor:pointer;letter-spacing:.03em}
.view{flex:1;display:flex;flex-direction:column}
.step{flex:1;display:flex;flex-direction:column;gap:14px;padding-top:14px;animation:fadeUp .35s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.eyebrow{margin:0;font:800 12px var(--body);letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
h1{margin:0;font:900 clamp(28px,8.4vw,36px)/1.08 var(--display);text-wrap:balance}
.lead{margin:0;color:var(--muted);max-width:34ch}
.back{align-self:flex-start;background:none;border:0;color:var(--muted);font:700 15px var(--body);padding:4px 0;cursor:pointer}

/* step 1: monster carousel */
.carousel{position:relative;display:flex;align-items:center;justify-content:center;min-height:min(42vh,320px);touch-action:pan-y;user-select:none}
.stage{width:min(62vw,240px);aspect-ratio:1;display:flex;align-items:center;justify-content:center}
.stage svg{width:100%;height:auto;filter:drop-shadow(0 0 34px rgba(183,156,255,.55));animation:float 3.2s ease-in-out infinite}
.stage.swap svg{animation:swapIn .35s ease both,float 3.2s ease-in-out .35s infinite}
@keyframes float{50%{transform:translateY(-10px)}}
@keyframes swapIn{from{opacity:0;transform:scale(.8) rotate(-6deg)}to{opacity:1;transform:none}}
.arr{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:var(--glass);color:var(--txt);font:900 24px/1 var(--body);cursor:pointer;display:flex;align-items:center;justify-content:center}
.arr.prev{left:0}.arr.next{right:0}
.mon-name{text-align:center;font:900 30px var(--display)}
.mon-desc{text-align:center;margin:-8px 0 0;color:var(--muted)}
.dots{display:flex;justify-content:center;gap:8px}
.dots i{width:8px;height:8px;border-radius:4px;background:rgba(255,255,255,.32);transition:width .2s,background .2s}
.dots i.on{width:22px;background:var(--orange)}

/* buttons */
.cta{margin-top:auto;padding-top:16px}
.btn{width:100%;min-height:58px;border-radius:29px;border:0;font:900 19px var(--display);cursor:pointer;transition:transform .08s}
.btn:active{transform:scale(.98)}
.btn.primary{background:linear-gradient(#FF9A4D,var(--orange2));color:var(--orangeInk);box-shadow:0 10px 30px rgba(255,122,44,.38)}
.btn.ghost{background:var(--glass2);color:var(--txt);border:1px solid var(--line);font-size:16px;min-height:52px}
.btn.hot{background:var(--blood);color:#fff;box-shadow:0 10px 30px rgba(255,79,94,.35)}
.link{background:none;border:0;color:var(--muted);font:700 15px var(--body);text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:6px;align-self:center}
.toast{font-size:13px;color:var(--muted);min-height:1.2em;text-align:center}

/* step 2: how mean */
.levels{display:flex;flex-direction:column;gap:12px}
.lvl{display:flex;align-items:center;gap:16px;text-align:left;background:var(--glass);border:1.5px solid var(--line);border-radius:20px;padding:14px 16px;color:var(--txt);cursor:pointer;transition:border-color .15s,background .15s}
.lvl[aria-pressed="true"]{border-color:var(--orange);background:rgba(255,138,61,.13);box-shadow:0 0 0 4px rgba(255,138,61,.14)}
.lvl .ds{display:flex;gap:5px;flex:none}
.lvl .ds i{width:18px;height:28px;border-radius:9px 9px 3px 3px;background:var(--mint)}
.lvl .ds i.s{background:var(--blood)}
.lvl b{display:block;font:900 19px var(--display)}
.lvl small{color:var(--muted);font-size:14px}

/* step 3: sign */
.field{display:flex;flex-direction:column;gap:6px;font:700 14px var(--body);color:var(--muted)}
input[type=text]{font:600 17px var(--body);color:var(--txt);background:var(--glass);border:1.5px solid var(--line);border-radius:16px;padding:14px 16px;width:100%}
input::placeholder{color:var(--dim)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:700 14px var(--body);color:var(--txt);background:var(--glass);border:1px solid var(--line);border-radius:999px;padding:8px 12px;cursor:pointer}

/* step 4: ready */
.ready-mon{align-self:center;width:140px;margin-top:4px}
.ready-mon svg{width:100%;height:auto;filter:drop-shadow(0 0 30px rgba(183,156,255,.5));animation:float 3.2s ease-in-out infinite}
.share-box{background:var(--glass);border:1px dashed var(--line);border-radius:16px;padding:12px 14px;font-size:14px;color:var(--muted);word-break:break-all;user-select:all}
.stack{display:flex;flex-direction:column;gap:10px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:20px;padding:16px;display:flex;flex-direction:column;gap:10px}
.glass h2{margin:0;font:800 12px var(--body);letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.glass p{margin:0;color:var(--muted);font-size:14px}

/* hiccup mode */
.hic{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;padding-top:14px;animation:fadeUp .35s ease both}
.orb{width:196px;height:196px;border-radius:50%;border:0;margin:12px 0 4px;padding:24px;cursor:pointer;
  background:radial-gradient(circle at 35% 30%,#FFB06B,var(--orange2) 60%,#c2410c);color:var(--orangeInk);font:900 24px/1.05 var(--display);
  box-shadow:0 0 0 10px rgba(255,138,61,.12),0 0 60px rgba(255,122,44,.55);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 18px rgba(255,138,61,.07),0 0 84px rgba(255,122,44,.7)}}
.hic .glass{width:100%;text-align:left}
.challenge{font:800 19px/1.3 var(--display);min-height:3.6em;text-wrap:balance}
.row{display:flex;gap:10px}
.row .btn{min-height:50px;font-size:16px}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.stat b{display:block;font:900 32px var(--display);font-variant-numeric:tabular-nums}
.stat span{color:var(--muted);font-size:13px}

.foot{text-align:center;padding-top:22px;display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--dim)}
.foot p{margin:0 auto;max-width:40ch}
.foot a{color:var(--muted)}

/* ---- overlays (receiver, scare) ---- */
.ov{position:fixed;inset:0;z-index:10;display:flex;flex-direction:column;align-items:center;gap:18px;overflow-y:auto;text-align:center;
  padding:24px 20px;padding-top:calc(24px + env(safe-area-inset-top,0px));padding-bottom:calc(24px + env(safe-area-inset-bottom,0px));
  background:radial-gradient(120% 70% at 50% 30%,var(--bg2),var(--bg1) 55%,var(--bg0));color:var(--txt)}
.ov::before,.ov::after{content:"";margin:auto}
.ov h2{margin:0;font:900 clamp(26px,7.5vw,32px)/1.12 var(--display);max-width:17ch;text-wrap:balance}
.ov p{margin:0;max-width:30ch;color:var(--muted)}
.ov .row,.ov .stack{width:100%;max-width:360px}
.ov .row .btn{flex:1}
.ov.wait{background:#0d0820}
.ov.whisper{background:#07040f}
.ov.boo{background:var(--blood);color:#fff}
.ov.safe{background:radial-gradient(90% 60% at 50% 32%,#3b2f7a,#1a1240 60%,#0d0820)}
.sleep{position:relative;width:min(48vw,190px)}
.sleep svg{width:100%;height:auto;opacity:.6;transform:rotate(-14deg);filter:grayscale(.35) drop-shadow(0 0 30px rgba(183,156,255,.35))}
.zzz{position:absolute;top:-18px;right:-14px;font:900 30px var(--display);color:var(--moon);letter-spacing:4px}
.zzz span{display:inline-block;animation:zz 2.4s ease-in-out infinite;opacity:0}
.zzz span:nth-child(2){animation-delay:.4s;font-size:.8em}
.zzz span:nth-child(3){animation-delay:.8s;font-size:.6em}
@keyframes zz{0%{opacity:0;transform:translate(0,6px)}30%{opacity:1}100%{opacity:0;transform:translate(10px,-24px)}}
.calm{font:800 22px/1.35 var(--display);max-width:22ch;min-height:3em;transition:opacity .4s}
.dot{width:26px;height:26px;border-radius:50%;background:var(--moon);box-shadow:0 0 30px var(--moon);animation:breathe 4s ease-in-out infinite}
@keyframes breathe{50%{transform:scale(1.9);opacity:.55}}
.cancel{position:absolute;bottom:calc(20px + env(safe-area-inset-bottom,0px))}
.boo-word{font:900 clamp(80px,26vw,140px)/1 var(--display);letter-spacing:2px;text-shadow:0 6px 0 rgba(0,0,0,.3)}
.big-mon{width:min(66vw,280px);height:auto;animation:pop .35s cubic-bezier(.2,1.8,.4,1) both,shake .12s linear .35s 6}
@keyframes pop{from{transform:scale(.2) rotate(-20deg)}to{transform:scale(1)}}
@keyframes shake{25%{transform:translate(-8px,4px) rotate(-3deg)}75%{transform:translate(8px,-4px) rotate(3deg)}}
.knock{width:110px;height:auto;filter:drop-shadow(0 0 26px rgba(183,156,255,.55));animation:peek 1.6s ease-in-out infinite}
@keyframes peek{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-8px) rotate(-6deg)}}
.cam-msg{font-size:14px;min-height:1.3em}

/* doors with warm light leaking from underneath */
.door-row{display:flex;gap:14px;justify-content:center;width:100%;max-width:360px;padding-bottom:18px}
.door{flex:1;max-width:104px;aspect-ratio:3/5;position:relative;border:0;border-radius:52px 52px 10px 10px;cursor:pointer;color:var(--moon);font:900 30px var(--display);
  background:linear-gradient(#3d2b78,#21164a);transition:transform .15s;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.12),0 10px 0 -6px rgba(255,170,90,.85),0 24px 30px -8px rgba(255,140,60,.5)}
.door::after{content:"";position:absolute;right:16%;top:62%;width:10px;height:10px;border-radius:50%;background:var(--moon)}
.door .dn{position:absolute;left:0;right:0;top:18%;text-align:center;line-height:1}
.door:hover{transform:translateY(-3px)}
.door[disabled]{cursor:default}
.door.picked{animation:rattle .1s linear 8}
@keyframes rattle{50%{transform:translateX(4px) rotate(2deg)}}
.note-paper{background:#fff6d6;color:#1b1a3a;font:700 16px/1.3 var(--body);padding:10px 14px;border-radius:4px;transform:rotate(-2deg);box-shadow:0 6px 18px rgba(0,0,0,.35);max-width:280px;word-break:break-word}
.whisper-mon svg{width:46px;height:auto;opacity:.6;animation:breathe 2.2s ease-in-out infinite}
.whisper-text{font:600 11px var(--body);letter-spacing:.04em;color:var(--dim);max-width:24ch}
.flash{position:fixed;inset:0;background:#fff;z-index:30;pointer-events:none;animation:flash .2s ease-out forwards}
@keyframes flash{from{opacity:.95}to{opacity:0}}
.confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden}
.confetti i{position:absolute;top:-20px;width:10px;height:16px;border-radius:2px;animation:fall 2.4s linear forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(540deg)}}

/* result panels: fear meter, reaction video */
.panel{width:100%;max-width:360px;background:rgba(12,7,30,.6);border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:14px;color:#fff;display:flex;flex-direction:column;gap:9px;text-align:left;backdrop-filter:blur(6px)}
.panel h3{margin:0;font:800 12px var(--body);text-transform:uppercase;letter-spacing:.14em;color:var(--dim)}
.fear-num{display:flex;align-items:baseline;gap:4px}
.fear-num b{font:900 46px/1 var(--display);font-variant-numeric:tabular-nums}
.fear-num span{font:800 18px var(--body)}
.meter{height:12px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.meter i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--orange),var(--blood));transition:width .8s cubic-bezier(.2,1.2,.4,1)}
.ov .panel p{font:800 17px var(--display);color:#fff;max-width:none}
.panel small{font-size:12px;color:var(--dim)}
.panel video{width:100%;max-height:38vh;border-radius:12px;background:#000;display:block}
.panel .row{max-width:none}
.ph{height:min(30vh,220px);border-radius:12px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--muted)}

/* live camera bubble */
.cam-bubble{position:fixed;z-index:20;top:calc(12px + env(safe-area-inset-top,0px));right:12px;width:84px;height:112px;border-radius:18px;overflow:hidden;border:2px solid var(--orange);background:#000;box-shadow:0 0 24px rgba(255,138,61,.45)}
.cam-bubble video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.cam-bubble .rec{position:absolute;left:6px;top:6px;font:900 10px var(--body);color:#fff;background:var(--blood);border-radius:6px;padding:1px 5px;letter-spacing:.08em}


/* step 2: trap picker */
.traps{display:flex;flex-direction:column;gap:12px}
.trap{display:flex;align-items:center;gap:14px;text-align:left;background:var(--glass);border:1.5px solid var(--line);border-radius:20px;padding:14px 16px;color:var(--txt);cursor:pointer;position:relative;transition:border-color .15s,background .15s}
.trap[aria-pressed="true"]{border-color:var(--orange);background:rgba(255,138,61,.13);box-shadow:0 0 0 4px rgba(255,138,61,.14)}
.trap[disabled]{cursor:default;opacity:.55}
.trap .ic{width:46px;height:46px;flex:none;border-radius:14px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center}
.trap .ic svg{width:30px;height:30px}
.trap b{display:block;font:900 19px var(--display)}
.trap small{display:block;color:var(--muted);font-size:14px}
.trap .tx{flex:1;min-width:0}
.trap .lock{display:block;margin-top:6px;font:800 12px var(--body);color:var(--orange);letter-spacing:.02em}
.trap .bar{display:block;height:6px;border-radius:3px;background:rgba(255,255,255,.12);margin-top:6px;overflow:hidden}
.trap .bar i{display:block;height:100%;background:var(--orange)}
.trap .tag{position:absolute;top:12px;right:14px;font:800 11px var(--body);letter-spacing:.08em;text-transform:uppercase;color:var(--dim)}
.toast.win{color:var(--orange);font-weight:800;font-size:15px}

/* maze */
.ov.maze{background:#0d0820}
.maze-head{display:flex;flex-direction:column;align-items:center;gap:10px}
.maze-scene{position:relative;width:100%;max-width:360px;aspect-ratio:360/260;border-radius:18px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.5)}
.maze-scene.walk{animation:walk .6s ease-in forwards}
.maze-scene.enter{animation:enter .45s ease-out both}
@keyframes walk{to{transform:scale(1.35);opacity:0}}
@keyframes enter{from{transform:scale(.85);opacity:0}to{transform:none;opacity:1}}
.tunnel{position:absolute;inset:0;width:100%;height:100%}
.arch{position:absolute;top:24%;width:23%;height:58%;border:0;padding:0;cursor:pointer;border-radius:999px 999px 6px 6px;
  background:radial-gradient(70% 60% at 50% 70%,#05030c,#000 80%);box-shadow:inset 0 0 0 4px #3d2b78,0 0 0 2px rgba(255,255,255,.06)}
.arch.left{left:23%}.arch.right{right:23%}
.arch .glow{position:absolute;left:50%;bottom:16%;width:30%;aspect-ratio:1;transform:translateX(-50%);border-radius:50%;background:radial-gradient(#ffb06b,rgba(255,138,61,0) 70%);opacity:.5;animation:flicker 3s ease-in-out infinite}
.arch.right .glow{animation-delay:1.3s}
.arch:hover{box-shadow:inset 0 0 0 4px var(--orange)}
.arch[disabled]{cursor:default}
@keyframes flicker{0%,100%{opacity:.35}40%{opacity:.7}55%{opacity:.25}70%{opacity:.6}}
.maze-btns .btn{min-height:54px;font-size:17px}


/* tic-tac-toe */
.ov.ttt{background:#0d0820}
#tttMon svg{width:72px;height:auto;filter:drop-shadow(0 0 22px rgba(183,156,255,.5))}
.board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%;max-width:300px}
.cell{aspect-ratio:1;border:1px solid var(--line);border-radius:18px;background:var(--glass);color:var(--txt);cursor:pointer;
  display:flex;align-items:center;justify-content:center;font:900 46px/1 var(--display);transition:background .15s,transform .1s}
.cell:hover:not([disabled]){background:var(--glass2)}
.cell:active:not([disabled]){transform:scale(.96)}
.cell[disabled]{cursor:default}
.cell.x{color:var(--orange)}
.cell.o svg{width:66%;height:auto;filter:drop-shadow(0 0 10px rgba(183,156,255,.6))}
.cell.boom{background:rgba(255,79,94,.35);border-color:var(--blood)}
.cell.win{background:rgba(255,138,61,.2);border-color:var(--orange)}
.cell .pop{animation:pop .3s cubic-bezier(.2,1.8,.4,1) both}

@media (prefers-reduced-motion:reduce){
  .arch .glow,.zzz span,.stars,.stage svg,.ready-mon svg,.orb,.dot,.big-mon,.knock,.candy-svg,.door.picked,.confetti i,.whisper-mon svg,.step,.hic{animation:none}
}