:root{
  --pink:#e1136e; --pink-deep:#b80d58; --cyan:#26a7e1; --cyan-deep:#137fb3;
  --ink:#241620; --ink-2:#5c4b55; --ink-3:#8f7f89;
  --paper:#fff7fb; --paper-2:#fbeef5; --line:#efd6e3; --card:#ffffff;
  --op:#d7263d; --ws:#4a4f8f; --dc:#f0801a; --db:#1e78d0;
  --ok:#1f9d55; --ng:#d7263d;
  --shadow:0 18px 40px -18px rgba(120,20,70,.35);
  --radius:14px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --pink:#ff3d8f; --pink-deep:#e1136e; --cyan:#4dbdf0; --cyan-deep:#26a7e1;
    --ink:#fbeef5; --ink-2:#d9bfcc; --ink-3:#9d8593;
    --paper:#1a1017; --paper-2:#24171f; --line:#3a2731; --card:#2a1a23;
    --ok:#4cd07f; --ng:#ff5c6e;
    --shadow:0 18px 40px -18px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"]{
  --pink:#ff3d8f; --pink-deep:#e1136e; --cyan:#4dbdf0; --cyan-deep:#26a7e1;
  --ink:#fbeef5; --ink-2:#d9bfcc; --ink-3:#9d8593;
  --paper:#1a1017; --paper-2:#24171f; --line:#3a2731; --card:#2a1a23;
  --ok:#4cd07f; --ng:#ff5c6e;
  --shadow:0 18px 40px -18px rgba(0,0,0,.7);
}
body.op{--g:var(--op)} body.ws{--g:var(--ws)} body.dc{--g:var(--dc)} body.db{--g:var(--db)}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{--g:var(--pink);margin:0;background:var(--paper);color:var(--ink);
  font-family:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(circle at 12% 0%, color-mix(in srgb,var(--g) 10%,transparent), transparent 40%),
    radial-gradient(circle at 95% 18%, color-mix(in srgb,var(--cyan) 10%,transparent), transparent 38%);
  background-repeat:no-repeat}
a{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:6px}
.wrap{max-width:900px;margin:0 auto;padding:0 clamp(18px,4vw,40px)}
.eyebrow{font-family:Oswald,"Arial Narrow",sans-serif;font-weight:500;letter-spacing:.18em;text-transform:uppercase;font-size:12px;color:var(--g)}
h1,h2,h3{font-family:"Dela Gothic One","Zen Kaku Gothic New",sans-serif;font-weight:400;line-height:1.25;text-wrap:balance;margin:0}
p{margin:0}

.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0}
.top img{height:44px;width:auto;display:block}
.top nav{display:flex;gap:6px}
.top nav a{text-decoration:none;font-size:13px;font-weight:700;color:var(--ink-2);padding:8px 12px;border-radius:999px}
.top nav a:hover{background:var(--paper-2);color:var(--ink)}

.hero{padding:clamp(20px,4vw,40px) 0 clamp(14px,3vw,24px)}
.hero .genre{font-family:Oswald,sans-serif;font-weight:600;letter-spacing:.1em;text-transform:uppercase;font-size:clamp(14px,1.8vw,18px);color:var(--g)}
.hero h1{font-size:clamp(28px,4.6vw,46px);margin-top:4px}
.hero h1 em{font-style:normal;color:var(--g)}

.panel{background:var(--card);border:2px solid var(--g);border-radius:18px;box-shadow:var(--shadow);
  padding:clamp(18px,3vw,32px);margin-bottom:clamp(32px,5vw,64px)}
.panel .head{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:flex-start;border-bottom:1px dashed var(--line);padding-bottom:16px;margin-bottom:8px}
.panel .head h2{font-size:clamp(20px,2.6vw,28px)}
.panel .badge{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;padding:3px 10px;border-radius:999px;background:var(--g);color:#fff;margin-bottom:6px}
.panel .period{font-size:13px;color:var(--ink-2)}
.panel .reward-box{background:var(--paper-2);border-radius:12px;padding:10px 14px;font-size:13px;min-width:220px}
.panel .reward-box b{display:block;font-size:15px;color:var(--ink)}
.panel .intro{color:var(--ink-2);font-size:15px;margin:12px 0 6px}

.q{padding:18px 0;border-bottom:1px solid var(--line)}
.q:last-of-type{border-bottom:0}
.q .num{font-family:Oswald,sans-serif;font-weight:600;letter-spacing:.1em;font-size:12px;color:var(--g)}
.q .text{font-weight:700;font-size:16px;margin:2px 0 10px}
.choices{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.choices label{display:flex;align-items:center;gap:10px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;background:var(--paper);cursor:pointer;font-size:14px}
.choices label:has(input:checked){border-color:var(--g);background:color-mix(in srgb,var(--g) 8%,var(--paper))}
.choices input{accent-color:var(--g)}
.q input[type=text]{width:100%;max-width:420px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink);font:inherit;font-size:15px}
.q .hint{font-size:13px;color:var(--ink-2);margin-top:8px}
.q .hint a{color:var(--cyan-deep);font-weight:700}
.q .result{font-size:13px;font-weight:700;margin-top:6px}
.q.ok .result{color:var(--ok)} .q.ng .result{color:var(--ng)}
.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;padding-top:18px}
.btn{font:inherit;font-weight:700;font-size:15px;padding:12px 24px;border-radius:999px;border:0;cursor:pointer;background:var(--g);color:#fff;text-decoration:none;display:inline-block}
.btn.ghost{background:transparent;color:var(--ink-2);border:1px solid var(--line)}
.btn:disabled{opacity:.5;cursor:default}
.msg{font-size:14px;color:var(--ink-2)}

.clear{margin-top:18px;background:linear-gradient(135deg,color-mix(in srgb,var(--g) 12%,var(--paper)),var(--paper-2));border:2px dashed var(--g);border-radius:16px;padding:22px;text-align:center}
.clear h3{font-size:clamp(22px,3vw,30px);margin:4px 0 12px}
.code{font-family:Oswald,monospace;font-size:clamp(26px,4vw,38px);letter-spacing:.12em;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 20px;display:inline-block;user-select:all}
.clear .how{font-size:13px;color:var(--ink-2);margin:12px auto 0;max-width:36em}
.clear .actions{justify-content:center}

.empty{background:var(--card);border:2px dashed var(--line);border-radius:18px;padding:40px 24px;text-align:center;margin-bottom:clamp(32px,5vw,64px)}
.empty h2{font-size:clamp(20px,2.6vw,26px)}
.empty p{color:var(--ink-2);margin-top:8px}
.empty .actions{justify-content:center}

footer{padding:26px 0 40px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center;color:var(--ink-3);font-size:12px}
footer img{height:30px;opacity:.9}
@media (max-width:480px){.top nav a{padding:8px 10px}}

/* reward choice */
.panel .reward-box .sub{display:block;font-size:12px;color:var(--ink-2);margin-top:2px}
.pick{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:16px auto 0;max-width:560px}
.pick-btn{font:inherit;cursor:pointer;background:var(--card);border:2px solid var(--line);border-radius:14px;padding:16px 14px;display:flex;flex-direction:column;gap:4px;color:var(--ink);text-align:center;transition:transform .2s,border-color .2s}
.pick-btn:hover{transform:translateY(-3px)}
.pick-btn.safe:hover{border-color:var(--ok)}
.pick-btn.gamble:hover{border-color:var(--g)}
.pick-btn .pk{font-weight:700;font-size:15px}
.pick-btn .pv{font-family:"Dela Gothic One","Zen Kaku Gothic New",sans-serif;font-size:clamp(18px,2.4vw,24px);line-height:1.2}
.pick-btn.safe .pv{color:var(--ok)} .pick-btn.gamble .pv{color:var(--g)}
.pick-btn .pn{font-size:12px;color:var(--ink-2)}
@media (max-width:480px){.pick{grid-template-columns:1fr}}

/* roulette */
.wheel-wrap{position:relative;width:min(300px,80vw);aspect-ratio:1;margin:12px auto 0}
.pointer{position:absolute;left:50%;top:-6px;transform:translateX(-50%);width:0;height:0;border-left:14px solid transparent;border-right:14px solid transparent;border-top:26px solid var(--ink);z-index:2;filter:drop-shadow(0 2px 2px rgba(0,0,0,.25))}
.wheel{position:relative;width:100%;height:100%;border-radius:50%;border:6px solid var(--card);box-shadow:0 10px 30px -10px rgba(0,0,0,.4);transition:transform 5s cubic-bezier(.12,.72,.08,1);will-change:transform}
.wheel::after{content:"";position:absolute;left:50%;top:50%;width:14%;height:14%;transform:translate(-50%,-50%);border-radius:50%;background:var(--card);border:3px solid var(--ink)}
.wheel .seg{position:absolute;left:50%;top:50%;width:50%;height:0;transform-origin:0 0;display:flex;justify-content:flex-end;padding-right:14px;box-sizing:border-box}
.wheel .seg b{color:#fff;font-family:Oswald,sans-serif;font-weight:600;font-size:15px;letter-spacing:.02em;transform:rotate(-90deg) translate(0,-50%);transform-origin:right center;text-shadow:0 1px 3px rgba(0,0,0,.35);white-space:nowrap}
.wheel .seg b small{font-size:10px;margin-left:1px}
@media (prefers-reduced-motion:reduce){.wheel{transition:transform .8s ease-out}}