.game-page[data-astro-cid-4ua5pfk2]{min-height:70vh;padding:84px 0 64px}.back[data-astro-cid-4ua5pfk2]{color:var(--muted);align-items:center;gap:7px;font-size:14px;font-weight:500;transition:color .18s;display:inline-flex}.back[data-astro-cid-4ua5pfk2]:hover{color:var(--text)}.game-header[data-astro-cid-4ua5pfk2]{text-align:center;margin:16px 0}.badge[data-astro-cid-4ua5pfk2]{border:1px solid var(--border);background:var(--surface);color:var(--brand-2);letter-spacing:.1em;text-transform:uppercase;border-radius:999px;margin-bottom:14px;padding:5px 12px;font-size:12px;font-weight:600;display:inline-block}.game-header[data-astro-cid-4ua5pfk2] h1[data-astro-cid-4ua5pfk2]{letter-spacing:-.03em;font-size:clamp(1.6rem,3.4vw,2.1rem);font-weight:700}.config[data-astro-cid-4ua5pfk2]{justify-content:center;margin-bottom:18px;display:flex}.config-group[data-astro-cid-4ua5pfk2]{flex-direction:column;align-items:center;gap:9px;display:flex}.config-label[data-astro-cid-4ua5pfk2]{letter-spacing:.12em;text-transform:uppercase;color:var(--muted-soft);font-size:12px;font-weight:600}.seg[data-astro-cid-4ua5pfk2]{border:1px solid var(--border);background:var(--surface);border-radius:14px;gap:6px;padding:6px;display:inline-flex}.seg-btn[data-astro-cid-4ua5pfk2]{min-width:92px;color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:9px;flex-direction:column;align-items:center;gap:1px;padding:8px 14px;font-family:inherit;transition:color .16s,background .16s,border-color .16s;display:flex}.seg-btn[data-astro-cid-4ua5pfk2]:hover{color:var(--text)}.seg-btn[data-astro-cid-4ua5pfk2] strong[data-astro-cid-4ua5pfk2]{font-size:14px;font-weight:600;font-family:var(--font-display)}.seg-btn[data-astro-cid-4ua5pfk2] small[data-astro-cid-4ua5pfk2]{color:var(--muted-soft);font-size:11px}.seg-btn[data-astro-cid-4ua5pfk2].is-active{color:var(--text);background:#38bdf824;border-color:#38bdf880}.seg-btn[data-astro-cid-4ua5pfk2].is-active small[data-astro-cid-4ua5pfk2]{color:#7dd3fc}.scoreboard[data-astro-cid-4ua5pfk2]{border:1px solid var(--border);background:var(--surface);border-radius:18px;grid-template-columns:repeat(3,1fr);gap:10px;max-width:420px;margin:0 auto 18px;padding:14px;display:grid}.score[data-astro-cid-4ua5pfk2]{text-align:center;border-radius:12px;flex-direction:column;align-items:center;gap:4px;padding:6px 4px;display:flex}.score-label[data-astro-cid-4ua5pfk2]{color:var(--muted-soft);font-size:12px}.score-val[data-astro-cid-4ua5pfk2]{font-family:var(--font-display);font-size:1.5rem;font-weight:700}.disc-chip[data-astro-cid-4ua5pfk2]{border-radius:50%;width:18px;height:18px}.disc-chip[data-astro-cid-4ua5pfk2].b{background:radial-gradient(circle at 36% 30%,#4b4b55,#0b0b10 70%);box-shadow:inset 0 1px 1px #ffffff40}.disc-chip[data-astro-cid-4ua5pfk2].w{background:radial-gradient(circle at 36% 30%,#fff,#cdd3da 75%);box-shadow:inset 0 -1px 2px #00000040}.turn-pill[data-astro-cid-4ua5pfk2]{font-family:var(--font-display);color:#7dd3fc;font-size:1rem;font-weight:700}.score-you[data-astro-cid-4ua5pfk2].turn{background:#38bdf81a;box-shadow:inset 0 0 0 1px #38bdf866}.score-ai[data-astro-cid-4ua5pfk2].turn{background:#f472b61a;box-shadow:inset 0 0 0 1px #f472b666}.board-wrap[data-astro-cid-4ua5pfk2]{width:min(94vw,480px);margin:0 auto;position:relative}.reversi-board[data-astro-cid-4ua5pfk2]{touch-action:manipulation;user-select:none;background-color:#15803d;background-image:radial-gradient(120% 120% at 50% 0,#ffffff0f,#0000),linear-gradient(160deg,#ffffff0a,#00000040);background-position:0 0;background-repeat:repeat;background-size:auto;background-attachment:scroll;background-origin:padding-box;background-clip:border-box;border:11px solid #5b3d22;border-radius:16px;grid-template-columns:repeat(8,1fr);gap:3px;padding:10px;display:grid;box-shadow:0 0 0 2px #2f1d0e,inset 0 0 60px #00000073,0 30px 70px -30px #000000e6}.reversi-board .sq{aspect-ratio:1;cursor:pointer;background:#0000001f;border-radius:4px;place-items:center;display:grid;position:relative;box-shadow:inset 0 0 0 1px #0000002e}.reversi-board .sq.last{box-shadow:inset 0 0 0 2px #facc15d9}.reversi-board .disc{border-radius:50%;width:82%;height:82%}.reversi-board .disc.b{background:radial-gradient(circle at 36% 30%,#50505b 0%,#16161c 55%,#000 100%);box-shadow:inset 0 2px 2px #ffffff47,inset 0 -3px 5px #0009,0 3px 5px #00000080}.reversi-board .disc.w{background:radial-gradient(circle at 36% 30%,#fff 0%,#e3e7ec 55%,#b9c0c9 100%);box-shadow:inset 0 2px 2px #ffffffe6,inset 0 -3px 5px #0000002e,0 3px 5px #00000073}.reversi-board .disc.place{animation:.26s cubic-bezier(.2,1.3,.35,1) both discPlace}.reversi-board .disc.flip{animation:.34s both discFlip}@keyframes discPlace{0%{transform:scale(0)}}@keyframes discFlip{0%{transform:rotateY(180deg)scale(.78)}60%{transform:rotateY(0)scale(1.08)}to{transform:none}}.reversi-board .hint{background:#00000059;border-radius:50%;width:30%;height:30%;animation:1.8s ease-in-out infinite hintPulse;box-shadow:inset 0 0 0 2px #ffffff59}@keyframes hintPulse{0%,to{opacity:.5}50%{opacity:.95}}.status[data-astro-cid-4ua5pfk2]{text-align:center;border:1px solid var(--border);max-width:460px;font-family:var(--font-display);color:var(--text);background:#00000040;border-radius:12px;margin:16px auto 0;padding:9px 16px;font-size:14px;font-weight:600}.status[data-astro-cid-4ua5pfk2].win{color:#86efac;background:#22c55e24;border-color:#22c55e80}.status[data-astro-cid-4ua5pfk2].lose{color:#fca5a5;background:#f8717124;border-color:#f8717180}.controls[data-astro-cid-4ua5pfk2]{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px;display:flex}.ctrl[data-astro-cid-4ua5pfk2]{border:1px solid var(--border);background:var(--surface);color:var(--muted);font-size:13.5px;font-weight:600;font-family:var(--font-display);cursor:pointer;border-radius:12px;align-items:center;gap:8px;padding:11px 16px;transition:color .16s,border-color .16s,background .16s;display:inline-flex}.ctrl[data-astro-cid-4ua5pfk2]:hover:not(:disabled){color:var(--text);border-color:var(--border-strong)}.ctrl[data-astro-cid-4ua5pfk2]:disabled{opacity:.4;cursor:default}.ctrl[data-astro-cid-4ua5pfk2][aria-pressed=false]{opacity:.55}.btn-reset[data-astro-cid-4ua5pfk2]{font-size:14px;font-weight:600;font-family:var(--font-display);color:#07101f;cursor:pointer;background:linear-gradient(#fff,#d6ebff);border:none;border-radius:12px;align-items:center;gap:9px;padding:11px 18px;transition:transform .15s;display:inline-flex}.btn-reset[data-astro-cid-4ua5pfk2]:hover{transform:translateY(-1px)}.overlay[data-astro-cid-4ua5pfk2]{backdrop-filter:blur(3px);z-index:5;background:#030806a8;border-radius:16px;place-items:center;padding:14px;animation:.25s both ovFade;display:grid;position:absolute;inset:0}.overlay[data-astro-cid-4ua5pfk2][hidden]{display:none}.overlay-card[data-astro-cid-4ua5pfk2]{border:1px solid var(--border-strong);background:var(--bg-soft);text-align:center;border-radius:18px;flex-direction:column;align-items:center;gap:10px;padding:26px 30px;animation:.4s cubic-bezier(.2,1.3,.35,1) both ovPop;display:flex;box-shadow:0 24px 60px -20px #000000e6}.overlay-emoji[data-astro-cid-4ua5pfk2]{font-size:2.5rem;line-height:1}.overlay-card[data-astro-cid-4ua5pfk2] strong[data-astro-cid-4ua5pfk2]{font-family:var(--font-display);font-size:1.4rem}.overlay-sub[data-astro-cid-4ua5pfk2]{max-width:280px;color:var(--muted);font-size:.92rem}@keyframes ovFade{0%{opacity:0}}@keyframes ovPop{0%{opacity:0;transform:translateY(12px)scale(.9)}}.tut-card[data-astro-cid-4ua5pfk2]{border:1px solid var(--border-strong);background:var(--bg-soft);text-align:center;border-radius:20px;flex-direction:column;align-items:center;gap:12px;width:min(92%,360px);padding:26px 26px 22px;animation:.4s cubic-bezier(.2,1.3,.35,1) both ovPop;display:flex;position:relative;box-shadow:0 24px 60px -20px #000000e6}.tut-close[data-astro-cid-4ua5pfk2]{color:var(--muted-soft);cursor:pointer;background:0 0;border:none;font-size:16px;position:absolute;top:12px;right:14px}.tut-close[data-astro-cid-4ua5pfk2]:hover{color:var(--text)}.tut-card[data-astro-cid-4ua5pfk2] strong[data-astro-cid-4ua5pfk2]{font-family:var(--font-display);font-size:1.25rem}.tut-body[data-astro-cid-4ua5pfk2]{color:var(--muted);min-height:66px;font-size:.95rem;line-height:1.55}.tut-body[data-astro-cid-4ua5pfk2] b[data-astro-cid-4ua5pfk2]{color:var(--text)}.tut-fig[data-astro-cid-4ua5pfk2]{place-items:center;gap:6px;min-height:56px;font-size:2.6rem;line-height:1;display:grid}.tut-fig .tut-row{align-items:center;gap:7px;display:inline-flex}.tut-fig .tdisc{border-radius:50%;width:30px;height:30px;display:inline-block}.tut-fig .tdisc.b{background:radial-gradient(circle at 36% 30%,#50505b,#000 75%);box-shadow:inset 0 1px 1px #ffffff40}.tut-fig .tdisc.w{background:radial-gradient(circle at 36% 30%,#fff,#c2c9d1 80%)}.tut-fig .tdisc.ghost{color:#ffffffb3;box-shadow:none;background:#ffffff14;border:2px dashed #ffffff73;place-items:center;font-size:18px;display:grid}.tut-fig .tut-cap{color:var(--muted-soft);margin-top:4px;font-size:.78rem}.tut-dots[data-astro-cid-4ua5pfk2]{gap:7px;display:inline-flex}.tut-dots .tdot{background:#ffffff38;border-radius:50%;width:8px;height:8px;transition:background .2s,transform .2s}.tut-dots .tdot.on{background:#7dd3fc;transform:scale(1.25)}.tut-nav[data-astro-cid-4ua5pfk2]{gap:10px;margin-top:4px;display:flex}.tut-nav[data-astro-cid-4ua5pfk2] .ctrl[data-astro-cid-4ua5pfk2]{padding:9px 16px}.tut-nav[data-astro-cid-4ua5pfk2] .ctrl[data-astro-cid-4ua5pfk2]:disabled{visibility:hidden}.help[data-astro-cid-4ua5pfk2]{text-align:center;max-width:600px;color:var(--muted-soft);margin:22px auto 0;font-size:.88rem;line-height:1.6}.help[data-astro-cid-4ua5pfk2] strong[data-astro-cid-4ua5pfk2]{color:var(--muted)}@media (prefers-reduced-motion:reduce){.reversi-board .disc.place,.reversi-board .disc.flip,.reversi-board .hint{animation:none!important}}