:root{color-scheme:light;--ink:#203b32;--muted:#65736b;--paper:#f5f3e9;--card:#fffef8;--green:#335e48;--line:#06a847;--border:#dedfd2;--gold:#bc8c37;--radius:22px}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.75;-webkit-text-size-adjust:100%}
button,a{-webkit-tap-highlight-color:transparent}
a{color:inherit}
button{font:inherit}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
.site-header{max-width:980px;margin:auto;padding:22px 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--border)}
.site-header>a{text-decoration:none;font-size:20px;font-weight:750;letter-spacing:.12em;line-height:1.3}
.site-header>a span{display:block;font-size:9px;letter-spacing:.18em;margin-top:6px;font-weight:550}
.test-label{border:1px solid var(--gold);border-radius:40px;color:#805b1e;padding:4px 12px;font-size:11px;letter-spacing:.08em;white-space:nowrap}
.rally-app{max-width:720px;margin:0 auto;padding:0 24px 48px}
.hero{position:relative;padding:44px 0 32px;overflow:hidden}
.eyebrow{margin:0 0 12px;font-size:11px;letter-spacing:.2em;font-weight:700;color:#647a5a}
h1{font-size:clamp(28px,5.8vw,42px);line-height:1.55;letter-spacing:.04em;margin:0;font-weight:750}
.hero-copy{font-size:14px;color:var(--muted);margin:18px 0 0;line-height:1.9}
.hero-symbols{position:absolute;right:12px;bottom:35px;display:flex;gap:6px;transform:rotate(-8deg);opacity:.85}
.hero-symbols span{display:grid;place-items:center;background:#e7e9d9;border:1px solid #d7dcc6;border-radius:50%;height:54px;width:54px;font-size:27px}
.hero-symbols span:nth-child(2){transform:translateY(-16px)}
.connect-card,.stamp-book{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.connect-card{box-shadow:0 7px 22px #243e2806}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.section-heading h2{margin:0;font-size:16px;letter-spacing:.04em}
.badge{font-size:10px;padding:4px 9px;border-radius:30px;background:#eaf0e5;color:#3a6444;line-height:1.5}
#connection-message{font-size:13px;color:var(--muted);margin:14px 0 0}
.button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:50px;border:0;border-radius:12px;font-size:14px;font-weight:700;text-decoration:none;margin-top:18px;padding:12px 16px;cursor:pointer}
.button-line{background:var(--line);color:#fff}
.button-line span{margin-left:auto}
.button-secondary{background:#e8eddf;color:var(--ink)}
.button:disabled{opacity:.55;cursor:wait}
.status{font-size:12px;margin:12px 0 0;color:var(--muted);overflow-wrap:anywhere}
.status:empty{display:none}
.status.is-error{color:#a04431;background:#fff0e8;padding:12px;border-radius:10px}
.count{margin:0;font-size:13px;color:var(--muted)}
.count strong{color:var(--ink);font-size:34px;line-height:1;font-weight:650;font-variant-numeric:tabular-nums}
.progress{height:5px;background:#e8ebdf;margin:20px 0 26px;border-radius:6px;overflow:hidden}
.progress span{display:block;height:100%;width:0;background:var(--green);transition:width .45s ease}
.stamp-grid{display:grid;grid-template-columns:repeat(var(--stamp-columns,3),minmax(0,1fr));gap:12px}
.stamp-card{text-align:center;min-width:0}
.stamp-ring{width:104px;height:104px;max-width:100%;aspect-ratio:1;position:relative;border-radius:50%;border:1.5px dashed #cbd1bd;margin:0 auto 13px;display:grid;place-items:center;background:#f7f7ef}
.stamp-symbol{font-size:40px;filter:grayscale(1);opacity:.3;transition:opacity .4s,filter .4s}
.stamp-check{display:none;position:absolute;right:-2px;bottom:4px;background:var(--green);border:3px solid var(--card);color:#fff;border-radius:50%;width:29px;height:29px;font-size:15px;line-height:23px}
.stamp-card h3{font-size:12px;margin:0;font-weight:650}
.stamp-state{color:var(--muted);font-size:11px;margin:4px 0 0}
.is-collected .stamp-ring{border:2px solid #6f8b60;background:#eff2df}
.is-collected .stamp-symbol{filter:none;opacity:1}
.is-collected .stamp-check{display:block}
.is-collected .stamp-state{color:var(--green);font-weight:700}
.save-note{font-size:11px;text-align:center;margin:24px 0 0;padding-top:16px;border-top:1px solid var(--border);color:var(--muted);line-height:1.8}
.completion{display:flex;align-items:center;gap:14px;margin-top:20px;padding:18px;background:#f1ecd9;border-radius:14px}
.completion>span{font-size:28px}
.completion h3{font-size:15px;margin:0 0 5px}
.completion p{font-size:12px;margin:0}
.how-to{padding:25px 8px 10px}
.how-to h2{margin:0;font-size:20px;letter-spacing:.05em}
.how-to ol{list-style:none;padding:0;margin:22px 0}
.how-to li{display:flex;align-items:flex-start;gap:18px;padding:17px 0;border-top:1px solid var(--border)}
.step-number{font-size:13px;color:#8c956e;font-weight:700;letter-spacing:.05em;padding-top:3px}
.how-to h3{font-size:14px;margin:0 0 5px}
.how-to li p{font-size:12px;color:var(--muted);margin:0}
.help{border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:16px 8px;font-size:12px;color:var(--muted)}
.help summary{cursor:pointer;font-weight:650;color:var(--ink)}
.help div{padding:8px 0}
.site-footer{text-align:center;padding:26px 24px calc(28px + env(safe-area-inset-bottom));background:#e9ecdf;color:var(--muted);font-size:11px}
.site-footer p{margin:0 0 5px;letter-spacing:.08em}
.site-footer small{font-size:10px}
@media(max-width:520px){.site-header{padding:18px 20px}.site-header>a{font-size:18px}.rally-app{padding:0 18px 36px}.hero{padding:32px 0 28px}.hero-symbols{right:0;bottom:27px;gap:4px}.hero-symbols span{width:36px;height:36px;font-size:20px}.hero-copy{font-size:12px}.connect-card,.stamp-book{padding:20px 16px;border-radius:18px}.section-heading h2{font-size:14px}.stamp-grid{gap:7px}.stamp-ring{width:83px;height:auto}.stamp-symbol{font-size:32px}.stamp-card h3{font-size:11px}.badge{font-size:9px}.count strong{font-size:30px}}
@media(max-width:350px){.hero-symbols{display:none}.stamp-ring{width:70px}.section-heading{gap:8px}.stamp-card h3{font-size:10px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.theme-sakura{--ink:#52313d;--muted:#806371;--paper:#fcf2f5;--card:#fffafd;--green:#a75172;--border:#ead7e0;--gold:#b08b43}.theme-autumn{--ink:#503b29;--muted:#7b6a57;--paper:#f8f0e5;--card:#fffcf6;--green:#95603b;--border:#e4d8c6;--gold:#b98432}.hero-symbols{position:static;margin-top:24px;transform:none}.hero-symbols span:nth-child(2){transform:none}.stamp-grid{row-gap:24px}.stamp-card h3,.stamp-caption{overflow-wrap:anywhere}.stamp-caption{font-size:10px;color:var(--muted);margin:5px 0}.stamp-symbol{max-width:85%;overflow:hidden}.theme-sakura .is-collected .stamp-ring{background:#f9e4ed;border-color:#bd7a96}.theme-autumn .is-collected .stamp-ring{background:#f3e4ce;border-color:#ac7e4f}
.stamp-symbol.image-symbol{position:relative;width:88%;height:88%;max-width:none;min-width:0;min-height:0;display:block;line-height:0}.image-symbol img{position:absolute;inset:0;display:block;width:100%;height:100%;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.hero-symbols img{display:block;width:80%;height:80%;min-width:0;min-height:0;object-fit:contain;object-position:center}.image-symbol b,.hero-symbols b{font-weight:normal}
.reward-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px;overflow-wrap:anywhere}.reward-panel h2{font-size:17px;margin:0}.reward-panel>p,.reward-panel details{font-size:13px}.reward-panel details{border-top:1px solid var(--border);padding-top:14px;margin-top:18px}.reward-panel summary{font-weight:700;cursor:pointer}.reward-panel form{padding-top:10px}.reward-panel label{display:block;font-size:13px}.reward-panel input[type=password]{display:block;width:100%;max-width:320px;min-height:48px;padding:10px 12px;font-size:18px;border:1px solid var(--border);border-radius:9px;margin:8px 0 16px;background:#fff;color:var(--ink)}.exchange-ack{display:flex!important;gap:9px;align-items:flex-start}.exchange-ack input{width:18px;height:18px;flex-shrink:0;margin-top:3px}.staff-note{font-size:11px;color:var(--muted)}.round-label{font-size:12px;color:var(--muted);margin:14px 0 0}.reward-panel ol{padding-left:22px}.reward-panel li{margin:10px 0}.reward-panel small{display:block;color:var(--muted);font-size:10px}input:focus-visible{outline:3px solid var(--gold);outline-offset:2px}@media(max-width:520px){.reward-panel{padding:20px 16px;border-radius:18px}}