/* 오터맘 수달 놀이방: 모바일 먼저, 글자는 rem(큰 글자·시스템 글자 크기 따라감) */
:root{--bg:#fff8f0;--card:#ffffff;--ink:#4a362e;--muted:#7c665b;--accent:#b94f69;--accent-ink:#fff;--soft:#ffe9df;--mint:#e3f2ea;--line:#f0e1d6;--shadow:0 10px 32px #9d6f4c14;--ph-a:hsl(var(--h,20) 80% 92%);--ph-b:#e6f3ec;--fur:#c9a084;--muzzle:#f3dccb;--eye:#4a362e;--focus:#2f7d62;font-size:100%}
html.big{font-size:125%}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#1f1a18;--card:#2a2320;--ink:#f6e9e0;--muted:#cdb8ab;--accent:#f08ca3;--accent-ink:#2a1a1e;--soft:#3a2d29;--mint:#26332d;--line:#3f3430;--shadow:none;--ph-a:hsl(var(--h,20) 25% 24%);--ph-b:#25302b;--fur:#a98168;--muzzle:#d8bca8;--eye:#2a1f1b;--focus:#8fd4b6}}
:root[data-theme=dark]{--bg:#1f1a18;--card:#2a2320;--ink:#f6e9e0;--muted:#cdb8ab;--accent:#f08ca3;--accent-ink:#2a1a1e;--soft:#3a2d29;--mint:#26332d;--line:#3f3430;--shadow:none;--ph-a:hsl(var(--h,20) 25% 24%);--ph-b:#25302b;--fur:#a98168;--muzzle:#d8bca8;--eye:#2a1f1b;--focus:#8fd4b6;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Apple SD Gothic Neo","Noto Sans KR",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:1rem;line-height:1.7;-webkit-tap-highlight-color:transparent;word-break:keep-all;overflow-wrap:anywhere;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35;letter-spacing:-.02em;text-wrap:balance}
h1{font-size:1.75rem}h2{font-size:1.25rem}h3{font-size:1.05rem}
a{color:inherit}button{font:inherit;color:inherit;cursor:pointer}button:disabled{opacity:.45;cursor:default}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:10px}
.skip{position:fixed;left:8px;top:-80px;background:var(--card);padding:10px 14px;z-index:30;border-radius:10px}.skip:focus{top:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.topbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;max-width:720px;margin:0 auto;padding:12px 16px}
.brand{display:flex;gap:10px;align-items:center;text-decoration:none;font-weight:700}.brand img{border-radius:50%}.brand small{display:block;font-weight:500;color:var(--muted);font-size:.78rem}
.tools{display:flex;flex-wrap:wrap;gap:6px}.languages,.display{display:flex;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:3px}
.tools button{border:0;background:none;border-radius:999px;padding:6px 10px;font-size:.82rem;min-height:36px}.tools button[aria-pressed=true]{background:var(--soft);font-weight:700}
main{max-width:720px;margin:0 auto;padding:8px 16px 32px;outline:none}
main>section,main>aside{margin-top:20px}
.lead{color:var(--muted);margin-top:8px;font-size:1.05rem}
.hero,.intro,.result{text-align:center}
.art{display:block;margin:0 auto 18px;border-radius:28px;width:100%;max-width:420px;height:auto;aspect-ratio:1;object-fit:cover}
.art-ph{background:radial-gradient(circle at 30% 20%,var(--ph-a),var(--ph-b));display:grid;place-items:center}.art-ph svg{width:46%}
.ph-ear,.ph-head{fill:var(--fur)}.ph-muzzle{fill:var(--muzzle)}.ph-eye{fill:var(--eye)}
.hero-art{max-width:280px}.card-art{max-width:340px}
.thumb{width:88px;height:88px;margin:0;border-radius:20px;flex-shrink:0}
.games{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.game{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:12px;text-decoration:none;box-shadow:var(--shadow);min-height:44px}
.game b{display:block;font-size:1.05rem;line-height:1.4}.game small{color:var(--muted);font-size:.85rem}
.box{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:16px 18px;margin-top:14px;text-align:left;box-shadow:var(--shadow)}
.box h2,.box h3{margin-bottom:6px;color:var(--accent);font-size:1rem}.strong{font-weight:700;margin-bottom:6px}
.how,.tips{margin:0;padding-left:1.3em}
.pill{display:inline-block;margin-top:12px;background:var(--mint);border-radius:999px;padding:4px 14px;font-size:.88rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:48px;padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:var(--card);text-decoration:none;font-weight:700;text-align:center}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn.ghost{background:transparent}
.big-btn{width:100%;margin-top:20px;font-size:1.1rem;min-height:56px}
.play{text-align:left}.progress{display:block;width:100%;height:8px;border:0;border-radius:99px;overflow:hidden;background:var(--line);appearance:none;accent-color:var(--accent)}.progress::-webkit-progress-bar{background:var(--line)}.progress::-webkit-progress-value{background:var(--accent);border-radius:99px}.progress::-moz-progress-bar{background:var(--accent)}
.count{color:var(--muted);font-size:.9rem;margin-top:12px}.question{font-size:1.45rem;margin-top:6px;outline:none}
.hint{color:var(--muted);font-size:.88rem;margin-top:8px}
.opts{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.opt{width:100%;min-height:56px;text-align:left;background:var(--card);border:2px solid var(--line);border-radius:18px;padding:12px 16px;font-size:1rem;line-height:1.5}
.opt:hover{border-color:var(--accent)}.opt.on{border-color:var(--accent);background:var(--soft);font-weight:700}
.row{display:flex;gap:10px;margin-top:16px}
.label{color:var(--muted);font-size:.95rem}.result h1{margin-top:4px}.result .art{margin-top:18px}
.body{text-align:left;margin-top:12px}
.each{margin-top:20px;text-align:left;font-size:1.05rem}
.mix{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:12px 16px;margin-top:10px;text-align:left}.mix summary{cursor:pointer;min-height:44px}.mix summary small{display:block;color:var(--muted)}
/* 광고 1자리: 위아래 여백을 넉넉히(잘못 누름 방지), 자리 높이 미리 잡기(화면 밀림 방지) */
.ad-wrap{margin:40px 0;min-height:280px;border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);padding:12px 0}
.ad-label{font-size:.75rem;color:var(--muted);text-align:center;margin-bottom:6px}
.actions{display:grid;gap:10px;margin-top:32px}
.teaser{background:var(--mint);border-radius:22px;padding:18px;text-align:center}.teaser details{margin-top:10px}.teaser summary{list-style:none;display:inline-flex}.teaser summary::-webkit-details-marker{display:none}.teaser details p{margin-top:10px;font-size:.92rem}
.link{color:var(--accent);font-weight:700}
.notes{font-size:.85rem;color:var(--muted);text-align:center;display:grid;gap:4px}
footer{max-width:720px;margin:0 auto;padding:20px 16px 40px;font-size:.8rem;color:var(--muted);text-align:center;display:grid;gap:4px;border-top:1px solid var(--line)}
#toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%,20px);opacity:0;background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:999px;transition:.2s;pointer-events:none}#toast.show{opacity:1;transform:translate(-50%,0)}
.noscript{text-align:center;padding:24px}
@media (min-width:640px){h1{font-size:2.1rem}.actions{grid-template-columns:1fr 1fr}.actions .btn.primary{grid-column:1/-1}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* B안: 규격을 고정하고 비어 있어도 공간을 예약해요. */
.ad-wrap{min-height:150px;margin:48px 0;padding:10px 0;text-align:center;background:var(--bg);border-color:var(--line)}
.ad-wrap ins{max-width:none;vertical-align:top}
.ad-label{line-height:20px;margin-bottom:8px}
.halfway{text-align:center}.halfway .hero-art{margin-top:24px}
.halfway .ad-wrap{margin-bottom:0}.pause-actions{padding-top:150px;display:grid;gap:16px}.pause-actions .big-btn{margin-top:0}
@media (max-width:351px){.ad-wrap ins{visibility:hidden!important}}

/* The next step stays above the fold; artwork and ads follow it. */
.halfway .pause-actions{padding-top:0;margin-top:20px;display:grid;gap:12px}
.halfway .pause-story{padding-top:24px;min-height:150px}
.halfway .hero-art{max-width:220px}
/* Content spacing is separate from the ad density/margin budget. */
.ad-result-bottom + .actions{margin-top:0;padding-top:150px}
.ad-wrap{background:var(--bg)}
.ad-wrap ins{background:var(--soft);color-scheme:inherit}
.ad-wrap iframe{background:transparent;color-scheme:inherit}
/* Collapse only an explicitly empty unit inside its reserved theme space. */
.ad-wrap ins[data-ad-status="unfilled"]{display:none!important}

/* Benchmark §4.4 and §4.8: counted progress and a keepsake from this site's world. */
.count{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px}.completed{font-size:.85em}
.keepsake{position:relative;margin:20px 0 28px;padding:24px 20px;border:1px solid var(--line);text-align:left;background:var(--card)}
.keepsake-header{border-bottom:2px solid var(--accent);padding-bottom:16px}.keepsake-kind{font-size:.9rem;font-weight:700;letter-spacing:.06em;color:var(--accent);margin-bottom:12px}
.keepsake h1{font-size:1.7rem;margin-top:12px}.keepsake .label{font-size:.85rem}.keepsake-scene{margin:20px 0 0}.keepsake .card-art{border-radius:2px;max-width:300px;margin:0 auto}.keepsake figcaption{font-size:.8rem;color:var(--muted);margin:8px 0 14px}.keepsake-discovery{padding:16px 0 4px;border-top:1px solid var(--line);font-size:1.05rem}
.story-sequence{text-align:left;margin:24px 0}.story-sequence>section{margin-top:20px}.story-sequence h3{color:var(--accent);font-size:1rem}.story-sequence .body{margin-top:8px}.story-today{border-radius:3px;border-left:4px solid var(--accent);box-shadow:none}
.recommendations{text-align:left;padding-top:24px;border-top:1px solid var(--line)}.recommendations h2{margin-bottom:16px}.recommendations .game{border-radius:5px;box-shadow:none}.recommendations .thumb{width:72px;height:72px;border-radius:3px}
.keepsake-diary{border-left:5px double var(--accent);padding-left:26px}.keepsake-diary .keepsake-scene{border:1px solid var(--line);padding:12px}.keepsake-diary figcaption{border-top:1px dashed var(--line);padding-top:10px}.keepsake-diary .keepsake-discovery{border-top:0;border-bottom:1px solid var(--line);padding-bottom:14px}
/* At this width the fixed unit cannot be requested; remove its hidden overflow. */
@media (max-width:351px){.ad-wrap ins{display:none!important}}

/* Other Otterday playrooms follow the local recommendations, using this site's palette. */
.other-playrooms{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);text-align:left}
.other-playrooms h2{margin-bottom:16px;font-size:1.15rem}
.other-playroom{box-shadow:none;border-radius:12px;padding:18px;justify-content:space-between}
.other-playroom>span:first-child{min-width:0}
.other-playroom small{display:block;margin-top:6px;line-height:1.6;overflow-wrap:anywhere}
.other-playroom-arrow{flex:none;color:var(--accent);font-size:1.2rem}
.ad-wrap + .other-playrooms{margin-top:150px}