*{box-sizing:border-box}html,body{margin:0;height:100%}:root{--gap: clamp(2px, .7vw, 4px);--radius: 16px;--radius-lg: 20px;--region-bw: clamp(1px, .35vw, 1.5px);--tap: 44px;--ease: cubic-bezier(.2, .8, .3, 1);--dur: .18s}:root[data-motion=reduced] *{animation-duration:.01ms!important;transition-duration:.01ms!important}body{font-family:ui-rounded,SF Pro Rounded,Nunito,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent;transition:background .25s ease,color .25s ease}#app{min-height:100dvh;display:flex;flex-direction:column;align-items:center;padding:14px}.screen{width:min(100%,480px);margin:0 auto;display:flex;flex-direction:column;gap:16px;animation:screen-in .24s var(--ease)}@keyframes screen-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}a{color:inherit;text-decoration:none}.topbar{display:flex;align-items:center;gap:10px;padding-top:6px}.topbar-title{flex:1;text-align:center;font-size:1.35rem;font-weight:800;margin:0;letter-spacing:.3px}.icon-btn{width:var(--tap);height:var(--tap);border-radius:50%;display:grid;place-items:center;font-size:1.2rem;background:var(--surface);color:var(--text);box-shadow:0 3px 10px var(--shadow);transition:transform var(--dur) var(--ease)}.icon-btn:active{transform:scale(.9)}.icon-btn.ghost{background:none;box-shadow:none;pointer-events:none}.icon-btn.is-off{opacity:.55}.game-screen .topbar{gap:6px}.game-screen .topbar-title{font-size:1.15rem;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn{width:100%;min-height:var(--tap);padding:15px;border-radius:var(--radius);font-size:1.05rem;font-weight:750;background:var(--surface);color:var(--text);box-shadow:0 4px 14px var(--shadow);transition:transform var(--dur) var(--ease),filter var(--dur)}.btn:active{transform:translateY(2px) scale(.99)}.btn-primary{background:var(--accent);color:var(--accent-ink);box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 45%,transparent)}.board-wrap{display:grid;place-items:center}.board{display:grid;grid-template-columns:repeat(var(--cols),1fr);grid-template-rows:repeat(var(--rows),1fr);gap:var(--gap);width:min(100%,62vh);aspect-ratio:var(--cols) / var(--rows);padding:var(--gap);border-radius:var(--radius-lg);background:var(--region-line);box-shadow:0 8px 26px var(--shadow);touch-action:none;user-select:none;position:relative}.cell{position:relative;aspect-ratio:1;min-width:0;min-height:0;border-radius:5px;background:var(--fill, var(--surface));color:var(--ink, var(--text));display:grid;place-items:center;font-weight:800;font-size:clamp(.6rem,2.6vw,1.05rem);transition:transform .1s var(--ease),background .14s ease}.cell:active{transform:scale(.94)}.cell .mark{display:grid;place-items:center;width:100%;height:100%;pointer-events:none}.cell.edge-t{border-top:var(--region-bw) solid var(--cell-line, transparent)}.cell.edge-b{border-bottom:var(--region-bw) solid var(--cell-line, transparent)}.cell.edge-l{border-left:var(--region-bw) solid var(--cell-line, transparent)}.cell.edge-r{border-right:var(--region-bw) solid var(--cell-line, transparent)}.cell.is-x .mark:before{content:"✕";opacity:.55;font-size:.9em}.cell.is-pencil .mark:before{content:"•";opacity:.75;font-size:1.5em}.cell.is-wrong{background:color-mix(in srgb,var(--wrong-x) 26%,var(--fill, var(--surface)))}.cell.is-wrong .mark:before{content:"✕";color:var(--wrong-x);opacity:.95}.cell.is-commit{box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 70%,transparent),0 3px 8px var(--shadow);z-index:1}.cell.is-commit .mark{font-size:1.35em;line-height:1}.cell.is-sun,.cell.is-moon{background:var(--surface)}.cell.is-sun .mark{color:#e0a52c;font-size:1.3em}.cell.is-moon .mark{color:var(--accent);font-size:1.25em}.cell.is-given{background:var(--surface-2)}.cell.is-given .mark{opacity:.92}.cell.is-conflict{background:color-mix(in srgb,var(--wrong-x) 22%,var(--surface));box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--wrong-x) 55%,transparent)}.badge-layer{position:absolute;inset:0;pointer-events:none}.badge{position:absolute;transform:translate(-50%,-50%);min-width:15px;height:15px;padding:0 2px;border-radius:5px;background:var(--text);color:var(--bg);font-size:10px;font-weight:850;line-height:15px;text-align:center;box-shadow:0 1px 3px var(--shadow)}.board[data-game=lanterns],.cell.is-wall{--lamp: #f7c66b}.cell.is-wall{background:var(--line);color:var(--text-dim);box-shadow:none}.cell.is-clue{color:var(--text);font-weight:850}.cell:not(.is-wall){background:var(--surface-2)}.cell.is-lit{background:radial-gradient(circle at 50% 50%,color-mix(in srgb,var(--accent) 34%,transparent),color-mix(in srgb,var(--accent) 13%,transparent) 72%),var(--surface-2);transition:background .22s ease}.cell.is-lamp{background:var(--accent);box-shadow:0 0 14px 2px color-mix(in srgb,var(--accent) 65%,transparent);z-index:1}.cell.is-lamp .mark{font-size:1.15em}.dark-count{margin-top:12px;text-align:center;font-size:.84rem;font-weight:750;color:var(--text-dim);position:relative;padding-bottom:8px}.dark-count:after{content:"";position:absolute;left:12%;right:12%;bottom:0;height:3px;border-radius:2px;background:linear-gradient(to right,var(--accent) var(--fill-pct, 0%),var(--surface-2) var(--fill-pct, 0%));transition:background .25s ease}.dark-count.is-clear{color:var(--accent)}.cell.is-open{box-shadow:inset 0 1px 3px var(--shadow);color:var(--text)}.cell.is-open .mark{font-weight:850}:root[data-mode=light] .cell.is-open .mark[data-k="1"]{color:#2f6ec4}:root[data-mode=light] .cell.is-open .mark[data-k="2"]{color:#1f7d45}:root[data-mode=light] .cell.is-open .mark[data-k="3"]{color:#c2402a}:root[data-mode=light] .cell.is-open .mark[data-k="4"]{color:#6a3fc0}:root[data-mode=light] .cell.is-open .mark[data-k="5"]{color:#8f6414}:root[data-mode=light] .cell.is-open .mark[data-k="6"]{color:#1c7f7f}:root[data-mode=light] .cell.is-open .mark[data-k="7"]{color:#a32e6c}:root[data-mode=light] .cell.is-open .mark[data-k="8"]{color:#4a4a55}:root[data-mode=dark] .cell.is-open .mark[data-k="1"]{color:#8fc0ff}:root[data-mode=dark] .cell.is-open .mark[data-k="2"]{color:#77e0a4}:root[data-mode=dark] .cell.is-open .mark[data-k="3"]{color:#ffa08c}:root[data-mode=dark] .cell.is-open .mark[data-k="4"]{color:#c9b0ff}:root[data-mode=dark] .cell.is-open .mark[data-k="5"]{color:#ffd47a}:root[data-mode=dark] .cell.is-open .mark[data-k="6"]{color:#79dede}:root[data-mode=dark] .cell.is-open .mark[data-k="7"]{color:#ffa8d2}:root[data-mode=dark] .cell.is-open .mark[data-k="8"]{color:#ccd0dc}.region-legend{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:12px}.region-chip{min-width:30px;height:26px;padding:0 7px;border-radius:8px;background:var(--chip);display:grid;place-items:center;font-size:.8rem;font-weight:800;color:var(--chip-ink, var(--text));box-shadow:0 2px 6px var(--shadow);transition:opacity .18s ease,transform .18s var(--ease)}.region-chip.is-clear{opacity:.38;transform:scale(.92)}.region-chip.is-over{box-shadow:0 0 0 2px var(--wrong-x)}.cell.pop{animation:pop .34s var(--ease);z-index:2}@keyframes pop{0%{transform:scale(.55)}55%{transform:scale(1.14)}to{transform:scale(1)}}.hud{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:28px}.hud-left{display:flex;align-items:center;gap:10px}.lives{display:flex;gap:5px}.life{width:11px;height:11px;border-radius:50%;background:var(--accent);transition:transform .2s var(--ease),background .2s ease}.life.spent{background:var(--surface-2);transform:scale(.72)}.hud-tier{font-size:.8rem;font-weight:700;color:var(--text-dim)}.hud-time{font-variant-numeric:tabular-nums;font-weight:750;color:var(--text-dim)}.controls{display:grid;grid-auto-flow:column;gap:8px}.ctrl{min-height:var(--tap);padding:8px 4px;border-radius:14px;background:var(--surface);box-shadow:0 3px 10px var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;transition:transform var(--dur) var(--ease)}.ctrl:active{transform:translateY(2px) scale(.98)}.ctrl.is-off{opacity:.45}.ctrl-icon{font-size:1.05rem;line-height:1}.ctrl-label{font-size:.68rem;font-weight:700;color:var(--text-dim)}.ctrl-mode{background:color-mix(in srgb,var(--accent) 16%,var(--surface))}.overlay{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:20px;background:color-mix(in srgb,var(--bg) 72%,transparent);backdrop-filter:blur(6px);animation:fade-in .2s ease}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.overlay-card{width:min(100%,340px);background:var(--surface);border-radius:22px;padding:24px 20px 18px;box-shadow:0 16px 50px var(--shadow);text-align:center;animation:card-in .3s var(--ease)}@keyframes card-in{0%{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}.overlay-card h2{margin:0 0 6px;font-size:1.5rem}.overlay-sub{margin:0 0 16px;color:var(--text-dim);font-weight:650;font-variant-numeric:tabular-nums}.overlay-btns{display:flex;flex-direction:column;gap:9px}.rules-list{text-align:left;margin:6px 0 16px;padding-left:20px;line-height:1.55;color:var(--text-dim);font-weight:600}.rules-list li{margin-bottom:6px}.settings-card{text-align:left}.settings-card h2{text-align:center;margin-bottom:16px}.set-row{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:var(--tap);padding:9px 0;border-bottom:1px solid var(--surface-2)}.set-row:last-of-type{border-bottom:none}.set-text{display:flex;flex-direction:column;gap:1px;min-width:0}.set-label{font-weight:750;font-size:.96rem}.set-hint{font-size:.74rem;color:var(--text-dim);font-weight:600}.seg{display:flex;gap:3px;padding:3px;border-radius:11px;background:var(--surface-2);flex:none}.seg-btn{padding:7px 11px;border-radius:8px;font-size:.8rem;font-weight:750;color:var(--text-dim);transition:background var(--dur),color var(--dur)}.seg-btn.is-on{background:var(--surface);color:var(--text);box-shadow:0 1px 4px var(--shadow)}.switch{flex:none;width:50px;height:30px;border-radius:999px;background:var(--surface-2);position:relative;transition:background var(--dur) var(--ease)}.switch.is-on{background:var(--accent)}.switch-dot{position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:var(--surface);box-shadow:0 1px 4px var(--shadow);transition:transform var(--dur) var(--ease)}.switch.is-on .switch-dot{transform:translate(20px)}.theme-grid{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;max-width:62%}.theme-dot{width:26px;height:26px;border-radius:50%;background:var(--sw);box-shadow:0 1px 4px var(--shadow);transition:transform var(--dur) var(--ease),box-shadow var(--dur)}.theme-dot:active{transform:scale(.88)}.theme-dot.is-on{box-shadow:0 0 0 2px var(--surface),0 0 0 4px var(--sw);transform:scale(1.06)}.set-row:has(.theme-grid){align-items:flex-start;padding-top:13px}.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%);z-index:60;padding:11px 17px;border-radius:999px;background:var(--surface);color:var(--text);font-weight:700;font-size:.9rem;box-shadow:0 8px 24px var(--shadow);animation:toast-in .22s var(--ease)}.toast.out{opacity:0;transition:opacity .25s ease}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}.confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:50}.confetti span{position:absolute;top:-14px;width:9px;height:14px;border-radius:2px;animation:fall 1.5s var(--d, 0ms) cubic-bezier(.25,.6,.4,1) forwards}@keyframes fall{to{transform:translate(var(--x),var(--y)) rotate(var(--r));opacity:0}}.hub{gap:18px}.streak-card{background:var(--surface);border-radius:var(--radius-lg);padding:20px 18px 16px;box-shadow:0 6px 20px var(--shadow);text-align:center}.streak-main{display:flex;align-items:baseline;justify-content:center;gap:7px}.streak-flame{font-size:1.5rem}.streak-n{font-size:2.6rem;font-weight:850;line-height:1;font-variant-numeric:tabular-nums}.streak-word{font-size:1rem;font-weight:700;color:var(--text-dim)}.streak-sub{margin:8px 0 12px;color:var(--text-dim);font-size:.87rem;font-weight:650}.streak-dots{display:flex;justify-content:center;gap:9px}.streak-dot{width:13px;height:13px;border-radius:50%;background:var(--surface-2);box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--dot) 30%,transparent);transition:background .2s ease,transform .2s var(--ease)}.streak-dot.on{background:var(--dot);transform:scale(1.12);box-shadow:0 2px 8px color-mix(in srgb,var(--dot) 55%,transparent)}.streak-best{margin:12px 0 0;font-size:.76rem;color:var(--text-dim);opacity:.85}.hub-list{display:flex;flex-direction:column;gap:11px}.hub-card{display:flex;align-items:center;gap:14px;min-height:68px;padding:14px 16px;border-radius:18px;background:var(--surface);box-shadow:0 4px 14px var(--shadow);border-left:4px solid var(--card-accent);transition:transform var(--dur) var(--ease)}.hub-card:active{transform:scale(.985)}.hub-card.is-done{opacity:.72}.hub-icon{width:42px;height:42px;flex:none;border-radius:13px;display:grid;place-items:center;font-size:1.25rem;background:color-mix(in srgb,var(--card-accent) 18%,var(--surface-2))}.hub-text{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}.hub-name{font-weight:800;font-size:1.06rem}.hub-tag{font-size:.8rem;color:var(--text-dim);font-weight:620}.hub-go{color:var(--text-dim);font-size:1.4rem;line-height:1}.hub-done{color:var(--card-accent);font-weight:800;font-size:.88rem;font-variant-numeric:tabular-nums}.credit{color:var(--text-dim);font-size:.76rem;text-align:center;margin:4px 0 0;opacity:.8}.game-hero{display:flex;flex-direction:column;align-items:center;gap:10px;margin:4vh 0 2vh}.game-hero-icon{width:92px;height:92px;border-radius:28px;display:grid;place-items:center;font-size:2.7rem;background:color-mix(in srgb,var(--accent) 16%,var(--surface));box-shadow:0 10px 28px var(--shadow);animation:bob 3.6s ease-in-out infinite}@keyframes bob{0%,to{transform:translateY(0) rotate(-1.5deg)}50%{transform:translateY(-7px) rotate(1.5deg)}}.game-hero-tag{margin:0;color:var(--text-dim);font-weight:650;text-align:center;max-width:20ch}.home-menu{display:flex;flex-direction:column;gap:11px}.streak-inline{margin:-3px 0 3px;text-align:center;font-size:.8rem;font-weight:680;color:var(--text-dim)}.tier-list{display:flex;flex-direction:column;gap:11px}.tier-card{display:flex;align-items:center;gap:14px;min-height:var(--tap);padding:16px;border-radius:18px;background:var(--surface);box-shadow:0 4px 14px var(--shadow);text-align:left;transition:transform var(--dur) var(--ease)}.tier-card:active{transform:scale(.98)}.tier-info{flex:1;display:flex;flex-direction:column;gap:2px}.tier-name{font-weight:800;font-size:1.12rem}.tier-sub{color:var(--text-dim);font-size:.81rem;font-weight:620}.tier-arrow{color:var(--text-dim);font-size:1.4rem;line-height:1}.level-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.level-chip{aspect-ratio:1;min-height:var(--tap);border-radius:14px;background:var(--surface);box-shadow:0 3px 10px var(--shadow);font-weight:800;font-size:1.05rem;display:grid;place-items:center;transition:transform .1s var(--ease)}.level-chip:active{transform:scale(.94)}.level-chip.is-done{background:color-mix(in srgb,var(--accent) 22%,var(--surface));color:var(--text)}.rules-card{background:var(--surface);border-radius:var(--radius-lg);padding:20px;box-shadow:0 5px 18px var(--shadow)}.rules-card h2{margin:0 0 10px;font-size:1.25rem}.rules-card .rules-list{margin-bottom:0}@media(min-width:620px){.screen{width:min(100%,520px)}.board{width:min(100%,58vh)}}