:root{--ink:#273e39;--muted:#6b7969;--line:#dde5df;--paper:#fffefa;--deep:#315f52;--accent:#4c8975;--entry:#2b728a;--danger:#ba5149;--surface:#f2f5ef}
*{box-sizing:border-box}html{min-width:320px}body{margin:0;background:#f3f4ef;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button,select{font:inherit;color:inherit}button{cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:disabled{cursor:default;opacity:.35}button:focus-visible,select:focus-visible{outline:3px solid #80af98;outline-offset:3px}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}[hidden]{display:none!important}
.shell{width:min(1080px,100%);margin:auto;padding:0 max(24px,env(safe-area-inset-right)) 0 max(24px,env(safe-area-inset-left))}.topbar{height:88px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px}.brandmark{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;width:39px;height:39px;padding:9px;border-radius:12px;background:#315f52;box-shadow:0 3px 8px #315f5214}.brandmark i{border-radius:1px;background:#f3f7ed}.brandmark i:nth-child(2),.brandmark i:nth-child(6),.brandmark i:nth-child(7){opacity:.48}.brandname{font-size:22px;font-weight:650;letter-spacing:1px}.header-right{display:flex;gap:12px}.quiet-button{display:flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:10px 14px;border:1px solid #dde5dc;border-radius:12px;background:#fffefa99;color:#60756b;font-size:13px}.quiet-button svg{width:17px;height:17px}.brandcaption,.offline,.intro,.tiny-pill,.footer-right{display:none}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 278px;gap:24px;align-items:start}.board-panel,.side-panel{background:var(--paper);border:1px solid #e0e5dd;border-radius:20px;box-shadow:0 5px 25px #304b3b04}.board-panel{position:relative;overflow:hidden}.panel-top{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;border-bottom:1px solid #edf0e8;gap:10px}.board-heading{display:flex;align-items:center;gap:10px}.board-caption{font-size:12px;color:#6b7969}.board-tag{display:flex;align-items:center;gap:6px;padding:5px 10px;border-radius:20px;background:#eaf1e5;color:#58784e;font-size:12px;font-weight:600;white-space:nowrap}.board-tag:before{content:"";width:5px;height:5px;background:#8eab7f;border-radius:50%}.view-switch{display:flex;gap:3px;padding:3px;background:#edf1e9;border:1px solid #e7ece2;border-radius:10px}.view-switch button{min-height:34px;border:0;border-radius:7px;padding:6px 14px;background:transparent;color:#6b7969;font-size:12px;transition:background .15s,color .15s}.view-switch button.active{background:#fffefa;color:#365e4d;box-shadow:0 2px 5px #35583b0e}.small-line{display:none}
.scene{position:relative;perspective:1600px;display:flex;justify-content:center;padding:23px;user-select:none;-webkit-user-select:none;touch-action:pan-y}.board-shadow{display:none}.board-rotator{--rx:18deg;--rz:-4deg;position:relative;flex:1;max-width:558px;transform-style:preserve-3d;transform:rotateX(var(--rx)) rotateZ(var(--rz));margin:24px 16px 36px}.board-rotator.flat{transform:none;margin:0}.board-base{position:absolute;inset:-6px;background:#e1e6d8;border-radius:12px;transform:translateZ(-6px);box-shadow:0 5px 0 #c7d3bd,0 10px 0 #b1c1a8}.board-rotator.flat .board-base{display:none}.grid{position:relative;display:grid;grid-template-columns:repeat(9,minmax(0,1fr));width:100%;border:2px solid #96aa9a;border-radius:8px;overflow:hidden;background:#fffefa;transform-style:preserve-3d;box-shadow:0 3px 14px #304b3b05}.cell{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:1;min-width:0;padding:0;border:0;border-right:1px solid #e0e7de;border-bottom:1px solid #e0e7de;border-radius:0;background:#fffefa;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:clamp(21px,3vw,31px);font-weight:400;color:var(--entry);position:relative;outline-offset:-3px!important;font-variant-numeric:lining-nums}.cell:nth-child(3n){border-right:2px solid #96aa9a}.cell:nth-child(9n){border-right:0}.cell:nth-child(n+19):nth-child(-n+27),.cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid #96aa9a}.cell:nth-child(n+73){border-bottom:0}.cell.given{color:#2d413b;font-weight:550}.cell.peer{background:#f3f6ef}.cell.same{background:#e6f0e4;color:#3a6e55}.cell.selected{background:#dcebdc;box-shadow:inset 0 0 0 2px #6b9b79;z-index:1}.cell.conflict{background:#fae8e2;color:var(--danger)}.cell.selected.conflict{box-shadow:inset 0 0 0 2px #cb8c79}.cell .notes{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:90%;height:90%;font-size:clamp(10px,1.3vw,14px);font-weight:400;color:#4f6e59;line-height:1}.cell .notes span{display:flex;align-items:center;justify-content:center}.board-footer{display:flex;justify-content:space-between;align-items:center;padding:0 20px 15px;color:var(--muted);font-size:11px;gap:8px}.board-panel.is-flat .board-footer{display:none}.orbit-hint{display:flex;align-items:center;gap:5px}.orbit-hint svg{width:15px;height:15px}.board-coordinate{font-variant-numeric:tabular-nums;white-space:nowrap}.pause-screen{position:absolute;inset:70px 10px 10px;z-index:10;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;border-radius:12px;background:#f4f7eff5;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.pause-screen>svg{width:32px;height:32px;color:#72947b}.pause-screen h2{margin:3px 0;font-size:23px;font-weight:500}.pause-screen p{margin:0 0 8px;font-size:13px;color:var(--muted)}
.side-panel{padding:21px}.side-title{display:flex;align-items:center;justify-content:space-between}.side-title h2{margin:0;font-size:16px;font-weight:600;letter-spacing:.4px}.panel-detail{display:flex;align-items:center;gap:3px;opacity:.55}.panel-detail i{width:3px;height:3px;background:#86a174;border-radius:50%}.stats{display:flex;justify-content:space-between;gap:10px;margin:18px 0;padding:12px;border:1px solid #edf0e7;background:#f5f7f0;border-radius:12px}.stat-label{display:block;font-size:11px;color:#65745d;margin-bottom:6px}.clock-row{display:flex;align-items:center;gap:4px}.clock-value{font-size:25px;font-weight:450;letter-spacing:.4px;font-variant-numeric:tabular-nums}.pause-button{display:grid;place-items:center;width:28px;height:32px;border:0;border-radius:8px;background:transparent;color:#61794f}.pause-button svg{width:14px;height:14px}.filled-stat{text-align:right}.filled-value{font-size:25px;font-variant-numeric:tabular-nums;font-weight:450}.filled-value small{font-size:12px;color:#6b7d5e}.progress-track{height:3px;background:#e0e7d7;border-radius:3px;margin-top:5px;overflow:hidden}.progress-fill{height:100%;background:#90ad78;width:0;border-radius:3px}
.difficulty-row{display:flex;gap:8px}.select-wrap{position:relative;flex:1;min-width:0}.select-wrap svg{position:absolute;right:10px;top:15px;width:14px;height:14px;pointer-events:none;color:#85977d}.difficulty-select{width:100%;min-height:44px;appearance:none;-webkit-appearance:none;padding:9px 26px 9px 12px;border:1px solid #dce4d4;border-radius:10px;background:#fffefa;font-size:16px;color:#557048;cursor:pointer}.new-game{display:flex;align-items:center;justify-content:center;gap:5px;min-height:44px;border:1px solid var(--deep);border-radius:10px;background:var(--deep);padding:9px 12px;font-size:13px;font-weight:500;white-space:nowrap;color:#f1f7e9}.new-game svg{width:14px;height:14px}.keypad-label{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#6b7969;margin:22px 0 11px}.note-indicator{font-size:10px;color:#5b734a;background:#edf3e5;padding:3px 7px;border-radius:6px;line-height:1.2}.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.number-key{position:relative;height:61px;display:flex;align-items:center;justify-content:center;border:1px solid #dce5d3;border-radius:12px;background:#f4f7ee;color:#456a3d;font-size:27px;font-weight:450;box-shadow:0 2px 0 #d8e2cf66;transition:background .15s,border-color .15s,box-shadow .15s}.number-key small{display:none}.number-key.complete{color:#b2bdab;background:#f7f8f3;border-color:#e8ecdf;box-shadow:none}.keypad.pencil .number-key{font-size:21px;border-style:dashed;background:#edf4e5}.tools{display:grid;grid-template-columns:repeat(4,1fr);gap:3px;margin-top:19px;padding:5px;background:#f3f6ee;border:1px solid #ebefe3;border-radius:12px}.tool{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:50px;padding:7px 1px;border:0;border-radius:8px;background:transparent;color:#61794f;font-size:11px;transition:background .15s,color .15s}.tool svg{width:18px;height:18px}.tool.active{color:#426f38;background:#fffefa;box-shadow:0 2px 6px #465c3410}.tool .badge{position:absolute;right:2px;top:0;font-size:8px;width:13px;height:13px;display:grid;place-items:center;border-radius:50%;background:#e0ead5;color:#70895a}.answer-button{grid-column:1/-1;display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:44px;margin-top:12px;padding:10px 12px;border:1px solid #dce4d4;border-radius:10px;background:#fffefa;color:#61794f;font-size:12px;transition:background .15s,border-color .15s}.answer-button svg{width:17px;height:17px}.status-message{grid-column:1/-1;min-height:43px;padding-top:14px;margin:0;font-size:11px;color:#6b7969;line-height:1.7;text-align:center}.status-message.error{color:var(--danger)}
.footer{display:flex;justify-content:space-between;gap:10px;padding:16px 2px max(16px,env(safe-area-inset-bottom));font-size:10px;color:#65745d}.footer-note{display:flex;align-items:center;gap:6px}.footer-note svg{width:13px;height:13px}.footer kbd{font:inherit;border:1px solid #dde4d6;border-radius:4px;padding:2px 4px;background:#f9faf5;color:#87967a}.primary,.secondary{min-height:44px;border-radius:10px;padding:11px 18px;font-size:14px;touch-action:manipulation}.primary{border:1px solid var(--deep);background:var(--deep);color:#f5f8ef}.secondary{border:1px solid #dce4d4;background:#fffefa;color:#6d855e}.dialog-backdrop{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;background:#213b2d66;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.dialog{position:relative;width:min(440px,100%);max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);overflow-y:auto;-webkit-overflow-scrolling:touch;border:1px solid #e1e7d8;border-radius:20px;background:#fffefa;padding:32px;box-shadow:0 20px 70px #172d2626}.dialog h2{margin:9px 0 12px;font-size:24px;font-weight:550;letter-spacing:.5px;line-height:1.4}.dialog p,.dialog li{font-size:13px;line-height:1.85;color:#6b795e}.dialog ul{padding-left:20px}.dialog .dialog-eyebrow{display:none}.dialog-close{position:absolute;right:9px;top:9px;display:grid;place-items:center;width:36px;height:36px;border:0;border-radius:10px;background:transparent;color:#61794f}.dialog-close svg{width:18px;height:18px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}.dialog.answer-dialog{width:min(480px,100%);padding:28px}.answer-grid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));border:2px solid #96aa9a;border-radius:7px;overflow:hidden;margin:16px 0 12px}.answer-cell{display:grid;place-items:center;aspect-ratio:1;border-right:1px solid #e0e7de;border-bottom:1px solid #e0e7de;background:#fffefa;color:var(--entry);font-size:clamp(17px,4vw,23px)}.answer-cell.given{background:#f1f5eb;color:#2d413b;font-weight:550}.answer-cell:nth-child(3n){border-right:2px solid #96aa9a}.answer-cell:nth-child(9n){border-right:0}.answer-cell:nth-child(n+19):nth-child(-n+27),.answer-cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid #96aa9a}.answer-cell:nth-child(n+73){border-bottom:0}.answer-legend{font-size:11px!important;margin-bottom:0}.answer-dialog .dialog-actions{margin-top:15px}.win-mark{display:none}.win-stats{display:flex;gap:15px;border-block:1px solid #e0e7d8;padding:15px 0;margin-top:20px}.win-stats div{flex:1}.win-stats strong{display:block;font-size:22px;font-weight:500;margin-bottom:5px}.win-stats small{font-size:11px;color:#6b795e}.toast{position:fixed;bottom:max(22px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);max-width:calc(100vw - 32px);background:#315c49;color:#f4f8ed;padding:12px 18px;border-radius:12px;font-size:12px;line-height:1.6;text-align:center;z-index:150;box-shadow:0 5px 24px #25443020;pointer-events:none}.generating .grid{opacity:.4;pointer-events:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(hover:hover) and (pointer:fine){.number-key:hover{background:#e7f0dc;border-color:#b5cda3;box-shadow:0 2px 0 #c3d5b3}.new-game:hover,.primary:hover{background:#426f5e}.answer-button:hover{background:#f1f6e9;border-color:#becfb0}.tool:hover{background:#e5eedb;color:#4d743a}.cell:not(.selected):hover{background:#eaf2e3}.quiet-button:hover{background:#fffefa;color:#315f52}}
@media(max-width:960px){.shell{width:min(740px,100%)}.topbar{height:76px}.workspace{grid-template-columns:1fr;gap:16px}.board-panel{width:100%}.scene{padding:18px}.board-rotator{max-width:540px}.side-panel{display:grid;grid-template-columns:1fr 1fr;column-gap:24px;padding:20px}.side-title{display:none}.stats{grid-column:1;grid-row:1;margin:0 0 12px;padding:9px 11px}.difficulty-row{grid-column:1;grid-row:2;align-self:start}.tools{grid-column:1;grid-row:3;margin-top:8px;padding:3px}.answer-button{grid-column:1;grid-row:4;margin-top:8px}.keypad-label{grid-column:2;grid-row:1;margin:0 0 12px;align-self:center}.keypad{grid-column:2;grid-row:2/5;align-self:stretch}.number-key{height:auto;min-height:53px}.status-message{grid-row:5;min-height:30px}.footer-shortcuts{display:none}.cell{font-size:clamp(23px,4.5vw,32px)}.cell .notes{font-size:clamp(10px,1.8vw,14px)}}
@media(max-width:540px){.shell{padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right))}.topbar{height:70px}.brandname{font-size:20px;letter-spacing:.5px}.brandmark{width:34px;height:34px;padding:8px;gap:2px;border-radius:10px}.quiet-button{min-height:38px;font-size:12px;padding:8px 10px;border-radius:10px}.board-panel,.side-panel{border-radius:16px}.panel-top{padding:10px 12px}.board-caption{font-size:11px}.board-tag{font-size:11px;padding:4px 8px}.board-heading{gap:7px}.view-switch button{min-height:32px;padding:6px 10px;font-size:11px}.scene{padding:12px}.board-rotator{margin:14px 5px 25px}.board-rotator.flat{margin:0}.cell{font-size:clamp(20px,6.3vw,29px)}.cell .notes{font-size:clamp(9px,2.65vw,13px)}.board-footer{padding:0 12px 12px;font-size:10px}.board-coordinate{display:none}.side-panel{padding:14px;column-gap:14px}.stats{padding:8px;margin-bottom:10px;gap:3px}.clock-value,.filled-value{font-size:21px}.clock-row{gap:0}.pause-button{width:24px}.stat-label{font-size:10px;margin-bottom:4px}.filled-value small{font-size:10px}.difficulty-select{font-size:16px;padding-left:9px}.new-game{font-size:12px;padding-left:9px;padding-right:9px}.new-game svg{display:none}.difficulty-row{gap:5px}.number-key{min-height:49px;font-size:25px;border-radius:10px}.keypad{gap:6px}.keypad-label{font-size:10px;gap:4px;margin-bottom:10px}.note-indicator{font-size:9px;padding:3px 5px}.tool{font-size:10px;min-height:48px}.tool .badge{right:0}.answer-button{font-size:11px}.status-message{font-size:10px;padding-top:11px}.dialog{padding:28px 22px}.dialog.answer-dialog{padding:26px 20px}.dialog p,.dialog li{font-size:13px}.dialog h2{font-size:22px}.dialog-actions{flex-wrap:wrap}.footer{font-size:10px}.pause-screen{inset:59px 6px 6px}.pause-screen h2{font-size:21px}}
@media(min-width:961px) and (max-height:850px){.topbar{height:66px}.scene{padding:16px}.board-rotator{max-width:min(558px,calc(100vh - 220px));max-width:min(558px,calc(100dvh - 220px))}.side-panel{padding:18px}.stats{margin:15px 0;padding:10px}.keypad-label{margin-top:17px}.number-key{height:53px}.tools{margin-top:16px}.tool{min-height:47px}}
@media(min-width:541px) and (max-width:960px) and (max-height:1100px){.topbar{height:66px}.panel-top{padding:10px 18px}.scene{padding:14px}.board-rotator{max-width:490px}.side-panel{padding:16px}.stats{margin:0 0 8px;padding:7px 10px}.pause-button{height:30px}.stat-label{margin-bottom:4px}.number-key{min-height:48px}.tools{padding:3px}.tool{min-height:45px}.keypad-label{align-self:center}}
@media(max-width:360px){.board-caption{display:none}.brandname{font-size:18px}.side-panel{column-gap:10px;padding:11px}.filled-value small{display:none}.clock-value,.filled-value{font-size:19px}.stat-label{font-size:9px}.new-game{padding-left:7px;padding-right:7px;font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}
.board-heading{gap:4px}.level-arrow{width:32px;min-height:36px;border:0;border-radius:8px;background:transparent;display:grid;place-items:center;color:#678458;padding:0}.level-arrow svg{width:15px;height:15px}.level-arrow.prev svg{transform:rotate(90deg)}.level-arrow.next svg{transform:rotate(-90deg)}.level-select{display:flex;align-items:center;justify-content:center;min-height:36px;padding:5px 8px;border:1px solid #e3e9dd;border-radius:9px;background:#f6f8f1;font-size:13px;font-weight:550;white-space:nowrap;color:#486e3d}.level-select.cleared:after{content:"✓";margin-left:5px;font-size:11px;color:#5f8c4b}.board-heading .board-tag{margin-left:6px}.campaign-progress{font-size:10px;color:#65745d;white-space:nowrap}.dialog.level-dialog{width:min(680px,100%);padding:26px}.level-dialog h2{margin-top:0;font-size:23px}.level-catalog-progress{margin:0 0 16px!important;font-size:12px!important}.level-filters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.level-filter{min-height:48px;padding:6px 3px;border:1px solid #e0e7d7;border-radius:9px;background:#f5f7f0;color:#6b7a60;font-size:13px}.level-filter small{display:block;font-size:10px;margin-top:3px;color:#7b8c6d}.level-filter.active{border-color:#6e9976;background:#e5efdf;color:#365d35}.level-picker-controls{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:15px 0 12px;font-size:11px;color:#6a7c5d}.level-jump-wrap{display:flex;align-items:center;gap:6px}.level-jump{width:72px;min-height:40px;padding:8px;border:1px solid #d9e3cf;border-radius:8px;background:#fffefa;font-size:16px;color:#42623a}.level-jump-go{min-height:40px;padding:8px 11px;border:1px solid #d2dfc7;border-radius:8px;background:#eff4e8;font-size:12px}.levels-grid{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:6px}.level-tile{position:relative;height:44px;padding:0;border:1px solid #dfe6d7;border-radius:8px;background:#f8faf4;color:#576c49;font-size:14px;font-variant-numeric:tabular-nums}.level-tile.started:after{content:"";position:absolute;right:5px;top:5px;width:4px;height:4px;background:#c2a05c;border-radius:50%}.level-tile.finished{background:#e9f2df;border-color:#cbdcbd;color:#4f743b}.level-tile.finished:after{content:"✓";position:absolute;right:4px;top:2px;font-size:9px;color:#6b8f53}.level-tile.current{border:2px solid #4f8762;background:#e1eddb;font-weight:600;color:#2f6038}.level-pages{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:13px;font-size:12px;color:#70815f}.level-page-arrow{min-width:44px;min-height:40px;border:1px solid #dce5d3;border-radius:8px;background:#f3f7ed;font-size:18px}.level-legend{text-align:center;font-size:10px!important;margin:12px 0 0!important;color:#748566}.level-dialog .dialog-actions{margin-top:16px}.level-replay{font-size:12px}.level-arrow:hover,.level-select:hover{background:#e7f0dd}.level-tile:hover{border-color:#84a274}
@media(max-width:620px){.levels-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.dialog.level-dialog{padding:24px 18px}.level-picker-controls{font-size:10px}.level-jump{width:66px}.level-filter{font-size:12px}.level-filter small{font-size:9px}.level-catalog-progress{margin-bottom:12px!important}}
@media(max-width:540px){.board-heading .board-tag{display:none}.level-arrow{width:27px;min-height:34px}.level-select{font-size:12px;min-height:34px;padding:4px 7px}.board-heading{gap:2px}.campaign-progress{font-size:9px}.footer{gap:5px}}
.cell .notes [data-note]{border-radius:4px;cursor:pointer}.cell .notes .note-match{background:#36714f;color:#fff;font-weight:700;box-shadow:0 0 0 1px #36714f}.number-key.digit-active,.keypad.pencil .number-key.digit-active{border:2px solid #699572;background:#e1edda;color:#315c3c;box-shadow:0 0 0 1px #69957220}.hint-review{display:block;margin:8px auto 0;min-height:36px;padding:6px 10px;border:0;border-radius:8px;background:transparent;color:#4c7954;font-size:11px;text-decoration:underline;text-underline-offset:3px;grid-column:1/-1}.hint-dialog{width:min(540px,100%)}.hint-method{display:inline-block;padding:5px 9px;margin:0 0 4px;border-radius:6px;background:#edf3e5;color:#527746;font-size:11px}.hint-dialog h2{font-size:23px}.hint-dialog .hint-result{display:flex;align-items:center;flex-wrap:wrap;gap:4px;margin:12px 0 18px;color:#365b3f;font-weight:550}.hint-digit{display:inline-flex;align-items:center;justify-content:center;min-width:32px;min-height:34px;margin:2px 2px;padding:3px 7px;vertical-align:middle;border:1px solid #cfdcc6;border-radius:7px;background:#f1f6e9;color:#496d3d;font:600 15px/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;touch-action:manipulation}.hint-digit.active{background:#36714f;border-color:#36714f;color:#fff}.hint-steps{margin:0;padding-left:21px}.hint-steps li{margin:10px 0;padding-left:4px}.hint-dialog .hint-footnote{border-top:1px solid #e4eade;padding-top:13px;margin:18px 0 0;font-size:11px;line-height:1.8;color:#78856d}.hint-dialog .hint-correction{padding:10px 12px;background:#faf2e1;border-radius:8px;color:#8a703e;font-size:12px}.hint-review:hover{background:#eff4e8}@media(max-width:960px){.hint-review{grid-row:6}}@media(max-width:540px){.hint-dialog{padding:26px 20px}.hint-dialog h2{font-size:21px}.hint-digit{min-width:34px;min-height:36px}}
.level-filters{grid-template-columns:repeat(5,minmax(0,1fr))}.challenge-rule,.level-restriction{padding:9px 12px;border:1px solid #e2d4ba;border-radius:8px;background:#f8f1e5;color:#887044;font-size:11px;line-height:1.6;text-align:center}.challenge-rule{margin:11px 0 0;grid-column:1/-1}.level-dialog .level-restriction{font-size:11px;margin:12px 0 0}.hint-details{margin-top:14px;border:1px solid #e1e9d9;border-radius:9px;padding:10px 12px}.hint-details summary{cursor:pointer;font-size:12px;color:#577248;line-height:1.7}.hint-details ul{margin-bottom:0}.hint-details li{font-size:12px}@media(max-width:960px){.challenge-rule{grid-row:6}}@media(max-width:620px){.level-filter{font-size:11px;padding:6px 1px}.level-filter small{font-size:9px}.level-filters{gap:4px}}

.account-button{border:1px solid var(--line,#ddd);border-radius:10px;background:transparent;padding:9px 14px;color:inherit;font:inherit;font-size:13px;text-decoration:none;cursor:pointer;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-form{display:grid;gap:16px;text-align:left}.account-form label{display:grid;gap:7px;font-size:14px}.account-form input{width:100%;box-sizing:border-box;padding:12px;border:1px solid #d6dcd7;border-radius:10px;background:#fff;font:inherit}.account-form #auth-message{color:#a34236;font-size:13px;margin:0}.startup-error{position:fixed;inset:0;z-index:1000;background:#f5f4ee;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:30px;text-align:center;gap:20px}.startup-error button{padding:12px 24px;border:0;border-radius:12px;background:#35634f;color:#fff;font:inherit}#save-status{cursor:default}@media(max-width:620px){.account-button{font-size:12px;padding:8px;max-width:108px}.header-right{gap:6px}#admin-link{display:none}.brandname{font-size:18px}.brand{gap:7px}.quiet-button{padding:8px;font-size:11px}}
@media(max-width:620px){.topbar{height:auto;min-height:100px;flex-wrap:wrap;gap:12px;padding:14px 0}.header-right{width:100%;justify-content:space-between}.header-right .account-button{max-width:140px}}