*{box-sizing:border-box}
body{margin:0;font:16px/1.45 system-ui,-apple-system,sans-serif;background:#f5f6f8;color:#111}
body[data-page="play"]{overflow:hidden}
.w{max-width:680px;margin:0 auto;padding:6px;height:100svh}
.c{position:relative;background:#fff;border-radius:12px;box-shadow:0 2px 8px #0001;height:100%;display:flex;flex-direction:column}
.in{padding:0 10px 10px;flex:1;min-height:0;display:flex;flex-direction:column}
body[data-page="play"] .in{padding:0}
h1{margin:0;font-size:1.2rem}
.hdr{background:#081F37;color:#fff;border-radius:12px 12px 0 0;padding:8px 10px;margin:0;display:flex;align-items:center;justify-content:space-between;gap:10px;box-shadow:0 2px 8px #0001}
.logo{display:block;height:30px;width:auto}
h2{margin:10px 0 6px;font-size:1rem}
.m{color:#555;font-size:.92rem}
#state{position:static;text-align:right;color:#fff}
.q{font-size:1.1rem;margin:22px 0 10px}
body[data-page="play"] .q{font-size:1.45rem;line-height:1.35;margin-top:66px}
.r{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:16px}
.b{display:flex;justify-content:space-between;font-size:.85rem;color:#666;margin:12px 0 4px}
#bmin::before{content:"↓\0020"}
#bmax::after{content:"\0020↓"}
input[type=number]{width:130px;padding:10px;border:1px solid #ccc;border-radius:10px;font-size:16px;text-align:center}
input[type=range]{width:100%;touch-action:pan-x}
button{border:0;border-radius:11px;padding:11px 12px;font-size:16px;cursor:pointer}
.p,.n{color:#fff;width:100%;margin-top:10px;padding:11px 12px;font-size:16px;border-radius:11px}
.p{background:linear-gradient(180deg,#4e8fff 0%,#1f74ff 52%,#165fdd 100%);box-shadow:0 4px 12px rgba(15,98,254,.24),inset 0 1px 0 rgba(255,255,255,.28);transition:transform .12s ease,filter .12s ease,box-shadow .16s ease}
.p:hover{filter:brightness(1.03);box-shadow:0 6px 16px rgba(15,98,254,.28),inset 0 1px 0 rgba(255,255,255,.34)}
.p:active{transform:translateY(1px);filter:brightness(.98);box-shadow:0 3px 9px rgba(15,98,254,.22),inset 0 1px 0 rgba(255,255,255,.22)}
.s{background:#e9edf5;color:#123;width:100%;margin-top:10px}
.x{background:#fff0f0;color:#910}
.ok{background:#ecfff0;color:#073}
.n{background:linear-gradient(180deg,#2ab56f 0%,#129b57 52%,#0d8348 100%);box-shadow:0 4px 12px rgba(10,143,76,.22),inset 0 1px 0 rgba(255,255,255,.24);transition:transform .12s ease,filter .12s ease,box-shadow .16s ease}
.n:hover{filter:brightness(1.03);box-shadow:0 6px 16px rgba(10,143,76,.26),inset 0 1px 0 rgba(255,255,255,.3)}
.n:active{transform:translateY(1px);filter:brightness(.98);box-shadow:0 3px 9px rgba(10,143,76,.2),inset 0 1px 0 rgba(255,255,255,.2)}
.d{margin-top:14px;border-top:1px solid #eee;padding-top:12px}
#details{margin-top:0;padding-top:0;border-top:0}
#answer-summary{margin-top:10px;padding-top:0}
.hidden{display:none}
table{width:100%;border-collapse:collapse;font-size:.9rem}
td,th{padding:5px;border-bottom:1px solid #eee;text-align:left}
ul{padding-left:18px;margin:8px 0}
.chart{margin-top:6px}
.histogram-chart{padding-bottom:5px;border-bottom:1px solid #eee}
.ts{margin-bottom:14px}
.src{margin-top:18px}
#scrollarea{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:0 10px}
#bottom{background:#f3f4f6;padding:8px 10px calc(16px + env(safe-area-inset-bottom));border-top:4px solid #d1d5db;box-shadow:0 4px 12px #0002}
#welcome,#limit{padding:6px 0}
.box{border:1px solid #e5e7eb;border-radius:8px;padding:6px 8px;margin:8px 0;background:#fafafa}
.box summary{cursor:pointer;font-weight:600}
#roundEvaluation{padding:0;margin-bottom:8px;background:transparent;border:0}
.eval-table{width:100%;border-collapse:collapse;font-size:.92rem}
.eval-table th,.eval-table td{padding:6px 5px;border-bottom:1px solid #eee;text-align:left;vertical-align:top}
.eval-table th{white-space:nowrap;color:#374151}
#limit{flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;margin-right:-20px;padding-right:20px}
#game{flex:1;min-height:0;padding:0;position:relative;display:flex;flex-direction:column}
.question-mode #submit{margin-top:20px}
.answered{display:flex;flex-direction:column;height:100%;min-height:0}
.answered #bottom{position:absolute;left:0;right:0;bottom:0;max-width:none;margin:0;border-radius:0;z-index:20}
.answered .q{display:none}
.answered #meta{display:none}
.answered .r{display:none}
.answered #num{width:110px;padding:7px;font-size:21px;text-align:center}
.answered #rng{display:none}
.answered .b{display:none}
.answered #scrollarea{margin-top:0;margin-bottom:var(--bottom-reserve,0px);padding:0 10px 12px;scrollbar-gutter:stable}
#answer-summary-table th{white-space:nowrap;margin-right:20px;}
.others-title{font-size:.9rem;margin-left:5px}
.linkbtn{display:block;text-align:center;text-decoration:none;border-radius:11px;padding:11px 12px}
.vote-controls{margin:40px 0 6px;padding:12px;border-radius:10px;}
.vote-msg{margin:0 0 10px;text-align:center}
.vote-actions{display:flex;gap:24px;justify-content:center}
.vote-btn{font-size:30px;line-height:1;border:1px solid #d1d5db;padding:30px 18px;width:30%}
.vote-btn[data-vote="1"]{background:#ecfdf3;border-color:#b9e7cc}
.vote-btn[data-vote="-1"]{background:#fef2f2;border-color:#f2caca}
.vote-btn.active{border-color:#2563eb;box-shadow:0 0 0 2px #dbeafe inset}
.vote-btn:disabled{opacity:.72;cursor:default}

body[data-page="index"]{overflow:hidden}
body[data-page="index"]{background:#071a2d;color:#fff}
body[data-page="index"] .c{background:#071a2d}
body[data-page="index"] h2,
body[data-page="index"] p{text-shadow:0 1px 1px rgba(0,0,0,.22),0 3px 14px rgba(7,26,45,.45)}
body[data-page="index"] .in{padding:0}
body[data-page="index"] #scrollarea{margin:0;padding:8px 16px 0;border-top:0}
body[data-page="index"] #bottom{position:static;left:auto;right:auto;bottom:auto;max-width:none;margin-top:auto;background:transparent;border-top:0;box-shadow:none;padding:0 16px calc(8px + env(safe-area-inset-bottom));padding-top:8px}
body[data-page="stats"] .in{padding:0}
body[data-page="stats"] #limit{display:flex;flex-direction:column;overflow:hidden;margin-right:0;padding:0}
body[data-page="stats"] #scrollarea{margin:0;padding:0 10px;border-top:0}
body[data-page="stats"] #bottom{position:static;left:auto;right:auto;bottom:auto;max-width:none;margin:0}
.welcome-page{padding:0;position:relative;display:flex;flex-direction:column;flex:1;min-height:0}
.welcome-hero{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:8px 4px 0}
.welcome-logo{width:100%;height:auto;display:block;background:#0d2742;border-radius:12px;padding:16px;filter:drop-shadow(0 6px 10px rgba(0,0,0,.28))}
.welcome-hero h2{margin:18px 0 12px;font-size:1.55rem;color:#fff}
.welcome-title-center{width:100%;text-align:center}
.welcome-hero p{margin:0 0 22px;max-width:560px;color:#dbe5f3;text-align:left;font-size:1.08rem;line-height:1.6}
.welcome-hero ul{margin:0 0 24px;padding:0;list-style:none;max-width:560px;width:100%}
.welcome-hero li{position:relative;margin:0 0 10px;padding:10px 12px 10px 30px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:10px;color:#e6eef9;line-height:1.5}
.welcome-hero li::before{content:"•";position:absolute;left:12px;top:8px;color:#9cc0ff;font-size:1.1rem}
.welcome-hero li img{display:block;width:80%;height:auto;margin:10px auto 0}
.welcome-illustrations{display:flex;gap:10px;max-width:560px;width:100%;margin:0 auto 22px auto}
.welcome-illustrations img{width:calc((100% - 60px)/3);height:auto;display:block;border-radius:8px}
.welcome-hero strong{color:#fff;font-weight:800}
.welcome-cta{margin-top:auto;padding-top:18px;padding-bottom:calc(8px + env(safe-area-inset-bottom))}
body[data-page="index"] .welcome-cta{display:flex;flex-direction:column;gap:10px}
body[data-page="index"] #start{margin-top:0;font-size:1.08rem;padding:14px 16px}