:root{--bg-gradient:linear-gradient(135deg, #fdf8f0 0%, #fdf4ea 50%, #fff7ed 100%);--bg:#fdf8f0;--bg-surface:#ffffffd9;--bg-board:#ffffffb8;--text:#1c1408;--text-muted:#786551;--text-subtle:#b0a08a;--border:#0000001a;--border-strong:#0000002e;--accent:#b45309;--accent-strong:#92400e;--accent-soft:#b4530921;--accent-text:#fff;--water:#b453090d;--island-bg:#fff;--island-border:#2b3b42;--island-text:#1c1408;--island-met:#b45309;--island-met-bg:#0d8f9629;--island-over:#dc2626;--island-over-bg:#dc262624;--island-select:#d97706;--bridge:#2b3b42;--bridge-flagged:#dc2626;--reachable:#d977068c;--btn-bg:#2a2118;--btn-text:#fff;--btn-hover:#3b2f21;--mode-track:#0000000f;--mode-active-bg:#2a2118;--mode-active-text:#fff;--mode-text:#786551;--header-bg:#fffc;--header-border:#00000014;--modal-bg:#fffffff5;--modal-backdrop:#0a141880;--toast-bg:#2a2118;--toast-text:#fff;--shadow-sm:0 2px 8px #00000014, 0 1px 2px #0000000a;--shadow-md:0 8px 24px #0000001a, 0 2px 8px #0000000f;--shadow-lg:0 24px 64px #00000024, 0 8px 24px #00000014}[data-theme=dark]{--bg-gradient:linear-gradient(135deg, #120d07 0%, #160f08 50%, #140e06 100%);--bg:#120d07;--bg-surface:#221c14e6;--bg-board:#1a150ecc;--text:#f7f1e6;--text-muted:#9a8a74;--text-subtle:#6b5f4c;--border:#ffffff1a;--border-strong:#fff3;--accent:#fbbf24;--accent-strong:#fcd34d;--accent-soft:#fbbf2429;--accent-text:#04181a;--water:#fbbf240a;--island-bg:#16242a;--island-border:#8aa3ac;--island-text:#f7f1e6;--island-met:#fbbf24;--island-met-bg:#2ad4d433;--island-over:#f87171;--island-over-bg:#f871712e;--island-select:#fbbf24;--bridge:#cfe0e6;--bridge-flagged:#f87171;--reachable:#fbbf2499;--btn-bg:#f7f1e6;--btn-text:#120d07;--btn-hover:#fff;--mode-track:#ffffff14;--mode-active-bg:#f7f1e6;--mode-active-text:#120d07;--mode-text:#9a8a74;--header-bg:#18130dcc;--header-border:#ffffff14;--modal-bg:#1c1710f7;--modal-backdrop:#000000a6;--toast-bg:#f7f1e6;--toast-text:#120d07}*,:before,:after{box-sizing:border-box}body{background:var(--bg-gradient);min-height:100vh;color:var(--text);-webkit-font-smoothing:antialiased;background-attachment:fixed;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe 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var(--header-border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:20;justify-content:space-between;align-items:center;gap:12px;padding:12px 20px;display:flex;position:sticky;top:0}.header__brand{align-items:center;gap:10px;min-width:0;display:flex}.header__logo{font-size:1.4rem;line-height:1}.header__title{letter-spacing:-.02em;white-space:nowrap;font-size:1.15rem;font-weight:700}.header__center{justify-content:center;display:flex}.mode-toggle{background:var(--mode-track);border-radius:999px;padding:3px;display:inline-flex}.mode-btn{color:var(--mode-text);background:0 0;border:0;border-radius:999px;padding:6px 16px;font-size:.85rem;font-weight:600}.mode-btn--active{background:var(--mode-active-bg);color:var(--mode-active-text)}.header__nav{gap:6px;display:flex}.nav-btn{border:1px solid var(--border);background:var(--bg-surface);color:var(--text);border-radius:10px;align-items:center;gap:6px;min-height:38px;padding:7px 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0;border:0;border-radius:8px;min-width:36px;min-height:36px;padding:8px;font-size:1rem}.modal__close:hover{color:var(--text)}.modal__body{padding:0 20px 18px;font-size:.92rem;line-height:1.55}.modal__body p{margin:0 0 12px}.modal__note{color:var(--text-muted);border-top:1px solid var(--border);margin-top:16px;padding-top:12px;font-size:.85rem}.modal__footer{padding:0 20px 20px}.modal__footer .btn{width:100%}.rules{margin:0 0 12px;padding-left:20px}.rules li{margin-bottom:7px}.setting{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:14px;padding:14px 0;display:flex}.setting:last-child{border-bottom:0}.setting__label{flex-direction:column;gap:2px;font-size:.92rem;font-weight:600;display:flex}.setting__hint{color:var(--text-subtle);font-size:.76rem;font-weight:500}.segmented{background:var(--mode-track);border-radius:10px;padding:3px;display:inline-flex}.segmented__btn{color:var(--mode-text);background:0 0;border:0;border-radius:8px;flex-direction:column;align-items:center;gap:1px;padding:6px 11px;font-size:.8rem;font-weight:600;display:flex}.segmented__btn--active{background:var(--mode-active-bg);color:var(--mode-active-text)}.segmented__meta{opacity:.75;font-variant-numeric:tabular-nums;font-size:.68rem}.switch{border:1px solid var(--border);background:var(--mode-track);border-radius:999px;flex-shrink:0;align-items:center;width:48px;height:28px;padding:2px;display:flex}.switch__knob{background:var(--text-subtle);border-radius:50%;width:22px;height:22px;transition:transform .16s,background .16s}.switch--on{background:var(--accent-soft);border-color:var(--accent)}.switch--on .switch__knob{background:var(--accent);transform:translate(20px)}.result{text-align:center;padding:6px 0 16px}.result__time{letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:var(--accent);font-size:2.1rem;font-weight:800}.result__detail{color:var(--text-muted);margin-top:2px;font-size:.85rem}.stats-grid{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.stat{text-align:center}.stat__value{font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:1.5rem;font-weight:700}.stat__label{color:var(--text-muted);margin-top:2px;font-size:.7rem}.confetti{pointer-events:none;z-index:90;position:fixed;inset:0;overflow:hidden}.confetti__piece{border-radius:2px;animation-name:confetti-fall;animation-timing-function:linear;animation-fill-mode:forwards;position:absolute;top:-20px}@keyframes confetti-fall{to{opacity:.1;transform:translateY(105vh)rotate(680deg)}}@media (prefers-reduced-motion:reduce){.confetti{display:none}*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important}}@media (width<=560px){.site-nav{padding:10px 14px}.site-nav__links{gap:12px}.site-nav__link{font-size:.82rem}.header{gap:8px;padding:10px 12px}.header__title{font-size:1rem}.header__logo{font-size:1.2rem}.nav-btn__label{display:none}.nav-btn{justify-content:center;min-width:40px;padding:8px 10px}.mode-btn{padding:6px 12px}.main{gap:12px;padding:14px 10px 32px}.board-frame{max-width:96vw;padding:7px}.toolbar{flex-direction:column;align-items:stretch;gap:10px;max-width:96vw}.toolbar__stats,.toolbar__actions{justify-content:center}.toolbar__actions .btn{flex:1}.stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}}.crash{text-align:center;max-width:420px;margin:18vh auto 0;padding:0 20px}.crash__title{letter-spacing:-.02em;margin:0 0 8px;font-size:1.3rem;font-weight:700}.crash__body{color:var(--text-muted);margin:0 0 18px;font-size:.95rem}.crash__detail{background:var(--mode-track);color:var(--text-subtle);text-align:left;white-space:pre-wrap;word-break:break-word;border-radius:8px;margin-top:18px;padding:10px;font-size:.72rem;overflow-x:auto}.board{background:var(--bg-board);border:1px solid var(--border);width:100%;max-width:min(520px,94vw);box-shadow:var(--shadow-md);border-radius:18px;flex-direction:column;align-items:center;gap:16px;padding:20px 16px;display:flex}.target{flex-direction:column;align-items:center;gap:1px;display:flex}.target__label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:.72rem;font-weight:700}.target__value{letter-spacing:-.04em;font-variant-numeric:tabular-nums;color:var(--accent);font-size:3.2rem;font-weight:800;line-height:1}.target__away{color:var(--text-subtle);font-variant-numeric:tabular-nums;font-size:.78rem}.tiles{flex-wrap:wrap;justify-content:center;gap:9px;margin:0;padding:0;list-style:none;display:flex}.tile{border:1px solid var(--border-strong);background:var(--bg-surface);min-width:58px;min-height:56px;color:var(--text);font-variant-numeric:tabular-nums;border-radius:12px;padding:8px 10px;font-size:1.3rem;font-weight:700;transition:transform .1s,border-color .1s}.tile:hover:not(:disabled){transform:translateY(-2px)}.tile--selected{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-strong)}[data-theme=dark] .tile--selected{color:var(--accent)}.tile--hit{background:#05966924;border-color:#059669}.ops{gap:9px;display:flex}.op{border:1px solid var(--border-strong);background:var(--bg-surface);width:54px;height:50px;color:var(--text);border-radius:12px;font-size:1.3rem;font-weight:700}.op--active{background:var(--accent);color:var(--accent-text);border-color:#0000}.hint{color:var(--text-muted);min-height:1.2em;margin:0;font-size:.82rem;font-weight:600}.steps{border-top:1px solid var(--border);flex-direction:column;gap:4px;width:100%;margin:0;padding:12px 0 0;list-style:none;display:flex}.step{font-variant-numeric:tabular-nums;color:var(--text-muted);text-align:center;font-size:.92rem}.step strong{color:var(--text)}.step--hit strong{color:#059669}[data-theme=dark] .step--hit strong{color:#34d399}.result__stars{letter-spacing:.1em;color:var(--accent);font-size:2rem;line-height:1.1}.result__stars-dim{opacity:.22}.banner--win{color:#047857;background:#05966924}.banner--stuck{color:#92400e;background:#b4530924}[data-theme=dark] .banner--win{color:#34d399}[data-theme=dark] .banner--stuck{color:#fbbf24}.dist{flex-direction:column;gap:4px;display:flex}.dist__row{align-items:center;gap:8px;font-size:.8rem;display:flex}.dist__label{width:22px;color:var(--text-muted);font-weight:700}.dist__bar{background:var(--accent);border-radius:4px;min-width:3px;height:16px;transition:width .25s}.dist__count{color:var(--text-muted);font-variant-numeric:tabular-nums}.setting--stack{flex-direction:column;align-items:stretch;gap:10px}.setting--stack .segmented{grid-template-columns:repeat(3,1fr);display:grid}@media (width<=480px){.target__value{font-size:2.6rem}.tile{min-width:50px;min-height:52px;font-size:1.15rem}.op{width:48px;height:48px}}