:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f3efe7;--surface:#fff;--surface-2:#f2eee6;--text:#1c1e23;--muted:#6b6f78;--border:#e2dccf;--accent:#23845d;--accent-soft:#23845d1f;--accent-ink:#fff;--danger:#c62828;--shadow:0 1px 2px #1e140a0f, 0 10px 30px #1e140a12;--board-shadow:0 14px 40px #28190a47;--covered-light:#efdcbc;--covered-light-2:#e3cba3;--covered-dark:#c0956c;--covered-dark-2:#ab7f57;--open-light:#f8f2e6;--open-dark:#dbc6a7}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#131519;--surface:#1c1f25;--surface-2:#252931;--text:#ebe7df;--muted:#9ba1ac;--border:#2d323b;--accent:#47b184;--accent-soft:#47b18429;--accent-ink:#0d1a14;--danger:#ef5350;--shadow:0 1px 2px #0000004d, 0 10px 30px #00000040;--board-shadow:0 14px 40px #0000008c}}*,:before,:after{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,sans-serif}button,input{font:inherit;color:inherit}h1,h2{margin:0;line-height:1.2}h2{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:10px;font-size:.8rem;font-weight:700}code{font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.muted{color:var(--muted)}.small{font-size:.85rem}.accent{color:var(--accent);font-weight:600}.page{min-height:100dvh}.center-page{place-items:center;padding:16px;display:grid}.card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;padding:16px}.card.narrow{gap:12px;max-width:420px;display:grid}input:not([type=range]){border:1px solid var(--border);background:var(--surface-2);border-radius:10px;outline:none;width:100%;padding:10px 12px;transition:border-color .15s,box-shadow .15s}input:not([type=range]):focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}input[type=range]{width:100%;accent-color:var(--accent)}.btn{border:1px solid var(--border);background:var(--surface-2);cursor:pointer;white-space:nowrap;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:9px 16px;font-weight:600;transition:background .15s,transform 50ms,border-color .15s;display:inline-flex}.btn:hover:not(:disabled){border-color:var(--muted)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.6;cursor:default}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn.primary:hover:not(:disabled){filter:brightness(1.07);border-color:var(--accent)}.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn.small{border-radius:8px;padding:5px 10px;font-size:.85rem}.btn.big{width:100%;padding:13px 18px;font-size:1.05rem}.lobby{padding:0 16px 40px}.hero{text-align:center;padding:48px 0 28px}.hero h1{letter-spacing:-.03em;font-size:clamp(2.2rem,7vw,3.4rem);font-weight:850}.tagline{color:var(--muted);max-width:34rem;margin:10px auto 0;font-size:1.1rem}.hero-art{--sq:58px;box-shadow:var(--board-shadow);border-radius:10px;margin-bottom:22px;display:inline-flex;overflow:hidden}.hero-art .sq{width:var(--sq);height:var(--sq)}.lobby-grid{gap:18px;max-width:920px;margin:0 auto;display:grid}@media (width>=820px){.lobby-grid{grid-template-columns:1fr 1fr;align-items:start}}.create-card{gap:16px;display:grid}.lobby-side{gap:18px;display:grid}.field{border:0;gap:6px;min-width:0;margin:0;padding:0;display:grid}.field legend,.field .legend{margin-bottom:6px;padding:0;font-size:.9rem;font-weight:600}.field .legend{justify-content:space-between;margin-bottom:0;display:flex}.mine-count{font-variant-numeric:tabular-nums;color:var(--accent)}.segmented{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;gap:3px;padding:3px;display:flex}.segmented button{cursor:pointer;color:var(--muted);background:0 0;border:0;border-radius:7px;flex:1;padding:7px 8px;font-weight:600;transition:background .15s,color .15s}.segmented button.on{background:var(--surface);color:var(--text);box-shadow:0 1px 3px #00000026}.zone-help{margin:-8px 0 0}.join-row{gap:8px;display:flex}.join-row input{text-transform:uppercase}.join-row input::placeholder{text-transform:none}.rules ul{gap:8px;margin:0;padding-left:18px;display:grid}.error{color:var(--danger);margin:0;font-weight:600}.game-page{--sq:min(calc((100vw - 32px) / 8), 72px)}@media (width>=960px){.game-page{--sq:max(44px, min(78px, calc((100vh - 230px) / 8)))}}.topbar{justify-content:space-between;align-items:center;gap:12px;max-width:1240px;margin:0 auto;padding:10px 16px;display:flex}.brand{letter-spacing:-.01em;cursor:pointer;background:0 0;border:0;align-items:center;gap:8px;padding:4px 0;font-size:1.05rem;font-weight:800;display:inline-flex}.brand-mine{width:22px;height:22px}@media (prefers-color-scheme:dark){.brand-mine{filter:invert()}}.room{align-items:center;gap:8px;display:flex}.room-code{letter-spacing:.12em;background:var(--surface-2);border:1px solid var(--border);border-radius:7px;padding:3px 8px;font-weight:700}.banner{color:#fff;text-align:center;background:#b26a00;padding:6px 12px;font-weight:600}.game-layout{grid-template-columns:minmax(0, calc(var(--sq) * 8));justify-content:center;gap:18px;max-width:1240px;margin:0 auto;padding:4px 16px 32px;display:grid}@media (width>=960px){.game-layout{grid-template-columns:calc(var(--sq) * 8) minmax(300px, 360px);align-items:start;gap:28px}}.board-col{gap:8px;min-width:0;display:grid}.side-col{gap:14px;min-width:0;display:grid}.player-bar{border-radius:10px;align-items:center;gap:10px;min-height:42px;padding:4px 4px 4px 10px;transition:background .2s;display:flex}.player-bar.to-move{background:var(--accent-soft)}.player-id{align-items:center;gap:8px;min-width:0;display:flex}.swatch{border:1px solid #00000059;border-radius:4px;flex:none;width:14px;height:14px}.swatch.w{background:#fff}.swatch.b{background:#222}.player-name{white-space:nowrap;text-overflow:ellipsis;font-weight:650;overflow:hidden}.you-tag,.offline{text-transform:uppercase;letter-spacing:.06em;vertical-align:2px;border-radius:999px;margin-left:6px;padding:1px 6px;font-size:.7rem;font-weight:700}.you-tag{background:var(--accent-soft);color:var(--accent)}.offline{color:var(--danger);background:#c628281f}.player-material{flex-wrap:wrap;flex:1;align-items:center;gap:0;min-width:0;display:flex}.mini{width:20px;height:20px;margin-right:-5px}.lead{color:var(--muted);margin-left:9px;font-size:.8rem;font-weight:700}.blown{background:#ff704329;border-radius:999px;align-items:center;margin-left:10px;padding:1px 8px 1px 4px;display:inline-flex}.mini-mine{width:14px;height:14px;margin-right:3px}.clock{font-variant-numeric:tabular-nums;background:var(--surface-2);border:1px solid var(--border);color:var(--muted);text-align:center;border-radius:8px;min-width:5.2em;margin-left:auto;padding:8px 12px;font:700 1.25rem/1 ui-monospace,SF Mono,Menlo,Consolas,monospace}.clock.running{background:var(--surface);color:var(--text);border-color:var(--accent)}.clock.low.running{color:#fff;background:var(--danger);border-color:var(--danger)}.board-frame{position:relative}.board-frame.shake{animation:.45s cubic-bezier(.36,.07,.19,.97) shake}.board{grid-template-columns:repeat(8, var(--sq));grid-auto-rows:var(--sq);box-shadow:var(--board-shadow);touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;border-radius:8px;display:grid;position:relative}.board .sq:first-child{border-top-left-radius:8px}.board .sq:nth-child(8){border-top-right-radius:8px}.board .sq:nth-child(57){border-bottom-left-radius:8px}.board .sq:nth-child(64){border-bottom-right-radius:8px}.board.flag-mode .sq{cursor:crosshair}.sq{--bevel:calc(var(--sq) * .055);place-items:center;display:grid;position:relative;overflow:hidden}.sq.movable{cursor:grab}.sq.covered.light{background:linear-gradient(145deg, var(--covered-light), var(--covered-light-2));box-shadow:inset var(--bevel) var(--bevel) 0 #ffffff80, inset calc(var(--bevel) * -1) calc(var(--bevel) * -1) 0 #784e243d}.sq.covered.dark{background:linear-gradient(145deg, var(--covered-dark), var(--covered-dark-2));box-shadow:inset var(--bevel) var(--bevel) 0 #ffecd252, inset calc(var(--bevel) * -1) calc(var(--bevel) * -1) 0 #40220c4d}.sq.open.light{background:var(--open-light);box-shadow:inset 1px 1px 3px #50321429}.sq.open.dark{background:var(--open-dark);box-shadow:inset 1px 1px 3px #3c1e0a38}.sq.crater.light,.sq.crater.dark{background:radial-gradient(circle at 50% 55%, #241914 0 16%, #4b3324 30%, #6e5038d9 48%, transparent 70%), var(--open-dark)}@media (hover:hover){.board.flag-mode .sq.covered:hover,.sq.movable:hover{filter:brightness(1.06)}}.sq:after{content:"";pointer-events:none;position:absolute;inset:0}.sq.last:after{background:#ffd2005c}.sq.selected:after{background:#23a06980}.sq.check:after{background:radial-gradient(circle,#ff1e1ef2 0%,#e614148c 40%,#c8000000 75%)}.num{z-index:1;font-family:Arial Black,Helvetica Neue,system-ui,sans-serif;font-weight:900;font-size:calc(var(--sq) * .52);line-height:1;position:absolute}.num.corner{font-size:calc(var(--sq) * .25);z-index:3;text-shadow:0 0 2px #fffffff2,0 0 4px #fffc;top:5%;right:7%}.n1{color:#1565c0}.n2{color:#2e7d32}.n3{color:#d32f2f}.n4{color:#1a237e}.n5{color:#7f1d1d}.n6{color:#00838f}.n7{color:#212121}.n8{color:#616161}.coord{z-index:1;font-size:calc(var(--sq) * .17);pointer-events:none;font-weight:700;line-height:1;position:absolute}.coord.rank{top:5%;left:6%}.coord.file{bottom:5%;right:7%}.sq.light .coord{color:#a87c55}.sq.dark .coord{color:#f5e8d2}.piece{z-index:2;pointer-events:none;width:100%;height:100%;transition:opacity .1s;position:relative}.piece.lifted{opacity:.3}.drag-ghost{z-index:100;width:calc(var(--sq) * 1.1);height:calc(var(--sq) * 1.1);pointer-events:none;filter:drop-shadow(0 8px 10px #00000059);position:fixed;transform:translate(-50%,-55%)}.flag{z-index:2;filter:drop-shadow(0 1px 1px #0000004d);width:56%;height:56%;animation:.18s ease-out pop-in;position:absolute}.flag.corner{z-index:3;width:32%;height:32%;bottom:3%;left:3%}.mine{z-index:1;width:48%;height:48%;position:absolute}.mine.detonated{opacity:.55;filter:invert(.85)}.mine.unexploded{filter:drop-shadow(0 0 4px #ff2800bf);width:56%;height:56%;animation:.35s ease-out both pop-in}.mine.unexploded.corner{z-index:3;width:32%;height:32%;bottom:3%;left:3%}.hint{z-index:4;pointer-events:none;background:#14462d61;border-radius:50%;width:30%;height:30%;position:absolute}.hint.capture{background:radial-gradient(circle,#0000 0 60%,#14462d6b 61%);width:100%;height:100%}.hint.blocked{border:calc(var(--sq) * .05) solid #c81e1ebf;background:0 0;width:34%;height:34%}.fx-layer{pointer-events:none;z-index:20;position:absolute;inset:0}.boom{width:12.5%;height:12.5%;position:absolute}.boom-flash{background:radial-gradient(circle,#fff 0%,#fff4b0 16%,#ffb300 34%,#ff5722 52%,#ff572200 70%);border-radius:50%;animation:.75s ease-out forwards boom-flash;position:absolute;inset:-70%}.boom-ring{border:calc(var(--sq) * .06) solid #ffe1a0f2;border-radius:50%;animation:.6s ease-out forwards boom-ring;position:absolute;inset:0}.boom-smoke{opacity:0;background:radial-gradient(circle,#463a32cc,#463a3200 70%);border-radius:50%;animation:1.3s ease-out .15s forwards boom-smoke;position:absolute;inset:-25%}.spark{--size:calc(var(--sq) * .1);width:var(--size);height:var(--size);margin:calc(var(--size) / -2);background:#ffe082;border-radius:50%;animation:.8s cubic-bezier(.12,.7,.3,1) forwards spark;position:absolute;top:50%;left:50%;box-shadow:0 0 6px 2px #ff9600d9}@keyframes boom-flash{0%{opacity:1;transform:scale(.15)}55%{opacity:.95}to{opacity:0;transform:scale(1.5)}}@keyframes boom-ring{0%{opacity:1;transform:scale(.3)}to{opacity:0;transform:scale(3.4)}}@keyframes boom-smoke{0%{opacity:.9;transform:scale(.6)}to{opacity:0;transform:translateY(-35%)scale(2.3)}}@keyframes spark{0%{transform:rotate(var(--a)) translateX(0) scale(1);opacity:1}to{transform:rotate(var(--a)) translateX(calc(var(--sq) * var(--d))) scale(.4);opacity:0}}@keyframes shake{0%,to{transform:translate(0)}15%{transform:translate(-6px,3px)rotate(-.4deg)}30%{transform:translate(5px,-4px)rotate(.4deg)}45%{transform:translate(-4px,2px)}60%{transform:translate(3px,-2px)}80%{transform:translate(-1px,1px)}}@keyframes pop-in{0%{opacity:0;transform:scale(.4)}to{opacity:1;transform:scale(1)}}@media (prefers-reduced-motion:reduce){.board-frame.shake{animation:none}.boom-ring,.spark{display:none}}.board-overlay,.promotion{z-index:30;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#14100c73;border-radius:8px;place-items:center;padding:16px;display:grid;position:absolute;inset:0}.overlay-card{background:var(--surface);text-align:center;width:100%;max-width:340px;box-shadow:var(--shadow);border-radius:14px;gap:10px;padding:20px;display:grid}.overlay-card h2{text-transform:none;letter-spacing:0;color:var(--text);margin:0;font-size:1.15rem}.overlay-card p{margin:0}.share-link{background:var(--surface-2);border:1px solid var(--border);word-break:break-all;-webkit-user-select:all;user-select:all;border-radius:8px;padding:8px 10px;font-size:.85rem;display:block}.promotion-card{background:var(--surface);box-shadow:var(--shadow);border-radius:14px;grid-template-columns:repeat(4,1fr);gap:8px;padding:12px;display:grid}.promotion-card button{width:calc(var(--sq) * 1.05);height:calc(var(--sq) * 1.05);border:1px solid var(--border);background:var(--surface-2);cursor:pointer;border-radius:10px;padding:4px}.promotion-card button:hover{border-color:var(--accent)}.promotion-card button img{width:100%;height:100%}.promotion-card .promotion-cancel{grid-column:1/-1;width:auto;height:auto;padding:6px;font-weight:600}.board-tools{flex-wrap:wrap;gap:8px;margin-top:4px;display:flex}.tool{border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:7px 12px;font-size:.88rem;font-weight:600;transition:background .15s,border-color .15s;display:inline-flex}.tool.on{border-color:var(--accent);background:var(--accent-soft)}.hint-text{margin:0}.status-card{gap:12px;display:grid}.status-title{letter-spacing:-.01em;font-size:1.35rem;font-weight:800}.status-card.over .status-title{color:var(--accent)}.status-detail{color:var(--muted);margin:4px 0 0;font-weight:500}.stats{flex-wrap:wrap;gap:6px 14px;font-size:.88rem;display:flex}.stat{align-items:center;gap:5px;font-weight:600;display:inline-flex}.stat-icon,.tool-icon{background:var(--covered-light);border-radius:4px;width:18px;height:18px;padding:1px}.actions{flex-wrap:wrap;gap:8px;display:flex}.actions:empty{display:none}.moves{font-variant-numeric:tabular-nums;max-height:220px;margin:0;padding:0;list-style:none;overflow-y:auto}.moves li{grid-template-columns:2.6em 1fr 1fr;align-items:center;padding:2px 0;display:grid}.moves li:nth-child(odd){background:var(--surface-2);border-radius:6px}.mv-n{color:var(--muted);padding-left:6px;font-size:.85rem}.mv{border-radius:5px;padding:2px 6px;font-weight:600}.mv.current{background:var(--accent-soft);color:var(--accent)}.mv.boom-mv{color:#e65100}.mv-boom{margin-left:3px;font-size:.85em}.chat-log{overflow-wrap:anywhere;align-content:start;gap:4px;min-height:60px;max-height:180px;margin-bottom:10px;display:grid;overflow-y:auto}.chat-line{margin:0}.chat-name{font-weight:700}.chat-name.spectator{color:var(--muted)}.chat-form{gap:8px;display:flex}.chat-form input{padding:7px 10px}.toast{left:50%;bottom:calc(20px + env(safe-area-inset-bottom));z-index:200;color:#fff;background:#23262d;border-radius:10px;max-width:calc(100vw - 32px);padding:10px 16px;font-weight:600;animation:.15s ease-out pop-in;position:fixed;transform:translate(-50%);box-shadow:0 10px 30px #0000004d}@media (width<=520px){.topbar .room .muted{display:none}.board-tools{gap:6px}.tool{gap:4px;padding:6px 9px;font-size:.8rem}.clock{padding:6px 9px;font-size:1.05rem}}