@charset "UTF-8";

:root{--paper:#f7f5ee;--card:#fffefa;--ink:#26332d;--muted:#74796f;--line:#e2e4d9;--coral:#f47559;--coral-dark:#b93f2a;--sage:#e7eddf;--sage-dark:#467258;--radius:24px;font-family:"Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;line-height:1.6}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,select:focus-visible,.board-scroll:focus-visible,summary:focus-visible{outline:3px solid var(--sage-dark);outline-offset:4px}svg{display:block}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35;letter-spacing:-.045em}p{word-break:keep-all;overflow-wrap:anywhere}button,select{color:var(--ink)}.shell{width:min(1120px,calc(100% - 64px));margin-inline:auto}.skip-link{position:fixed;z-index:20;left:16px;top:-80px;background:var(--ink);color:white;padding:12px 18px;border-radius:8px;text-decoration:none}.skip-link:focus{top:12px}
.site-header{height:104px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:18px;font-weight:800;letter-spacing:-.06em;line-height:1.2}.brand-mark{width:34px;height:34px;fill:var(--ink);color:var(--coral)}.brand-note{display:block;font-family:system-ui,sans-serif;font-size:8px;letter-spacing:.19em;font-weight:600;margin-top:7px;color:var(--muted)}.header-nav{display:flex;gap:28px;font-size:13px;font-weight:600}.header-nav a{text-decoration:none}.header-nav a:hover,.text-link:hover,.site-footer nav a:hover{color:var(--coral-dark)}.hero{display:flex;justify-content:space-between;align-items:center;padding:48px 6px 38px;gap:24px}.eyebrow,.section-kicker,.small-label{font-size:10px;font-weight:700;letter-spacing:.13em;color:var(--muted)}.eyebrow{font-size:12px;letter-spacing:.02em;display:flex;align-items:center;gap:9px}.little-square{display:block;width:7px;height:7px;background:var(--coral);border-radius:2px;transform:rotate(12deg)}h1{font-size:52px;font-weight:800;letter-spacing:-.065em;margin:9px 0 15px}.title-dot{color:var(--coral)}.hero-description{font-size:15px;color:#686f64;line-height:1.8;letter-spacing:-.02em}.mobile-break{display:none}.hero-art{position:relative;display:grid;grid-template-columns:repeat(3,46px);gap:5px;transform:rotate(-8deg);margin-right:74px;flex-shrink:0}.art-cell{width:46px;height:46px;display:grid;place-items:center;border-radius:8px;font-family:system-ui,sans-serif;font-size:27px;font-weight:750}.art-open{background:#e9ece1;border:1px solid #dde2d4}.art-one{color:#598069}.art-two{color:#b3773f}.art-blank{background:#f0f0e7}.art-flag{background:var(--coral);color:#fff9eb;box-shadow:0 4px 0 #d9654c;font-size:34px}.art-closed{background:#dbe3d0;box-shadow:0 4px 0 #c6d2b7}.art-spark{position:absolute;font-family:system-ui,sans-serif;font-size:24px;font-weight:500;color:#acb59e}.spark-one{left:-34px;top:8px;transform:rotate(10deg)}.spark-two{right:-29px;bottom:-12px;font-size:33px;color:var(--coral)}
.play-layout{display:grid;grid-template-columns:minmax(0,1fr) 292px;gap:24px;align-items:start;scroll-margin-top:20px}.game-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px 22px;box-shadow:0 5px 16px #26332d03;scroll-margin-top:20px;min-width:0}.game-topline{display:flex;align-items:center;justify-content:space-between;gap:14px}.game-topline h2{font-size:20px;font-weight:750;margin-top:4px}.difficulty-control{display:flex;align-items:center;gap:8px;flex-shrink:0}.difficulty-control>span{font-size:11px;color:var(--muted)}select{appearance:none;border:1px solid var(--line);border-radius:9px;padding:8px 27px 8px 10px;background:var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%236a7466' stroke-width='1.5'%3E%3Cpath d='m3 4 3 3 3-3'/%3E%3C/svg%3E") no-repeat right 8px center;font-size:12px;min-height:40px;cursor:pointer}.mode-tabs{display:flex;background:#f1f2e9;border:1px solid #e8eadf;padding:4px;border-radius:12px;gap:4px;margin-top:23px}.mode-tab{flex:1;border:none;min-height:42px;border-radius:8px;background:transparent;font-size:13px;font-weight:600;color:#7b8174;display:flex;justify-content:center;align-items:center;gap:8px}.mode-tab span{font-size:17px;font-family:system-ui,sans-serif}.mode-tab:hover{color:var(--ink)}.mode-tab.is-active,.mode-tab[aria-pressed=true]{background:var(--card);color:var(--ink);box-shadow:0 2px 6px #26332d0a}.game-subtitle{text-align:center;font-size:11px;color:var(--muted);margin:10px 0 21px;min-height:18px}.game-metrics{display:grid;grid-template-columns:1fr 1fr 1.5fr;border:1px solid var(--line);background:#fbfbf5;border-radius:13px;padding:13px 0;margin-bottom:20px}.metric{padding:0 20px;display:flex;flex-direction:column;justify-content:center;min-width:0}.metric+.metric{border-left:1px solid var(--line)}.metric-label{font-size:10px;color:var(--muted);line-height:1.4;margin-bottom:4px}.metric strong{font-family:system-ui,sans-serif;font-size:24px;line-height:1.2;font-weight:650;font-variant-numeric:tabular-nums;letter-spacing:.015em}.metric-state #status{font-size:11px;font-weight:600;color:var(--sage-dark);line-height:1.6;overflow-wrap:anywhere}.board-stage{background:#f5f6ed;border:1px solid #e9ecdf;border-radius:16px;padding:20px 12px 14px}.board-scroll{width:100%;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#b7c4aa #edf0e6;padding:2px 0 9px;border-radius:10px}.board{--cell-size:36px;display:grid;grid-template-columns:repeat(var(--cols,9),var(--cell-size));gap:3px;width:max-content;margin-inline:auto;background:#d2dccc;border:1px solid #cad6c2;border-radius:11px;padding:7px}.cell{display:grid;place-items:center;width:var(--cell-size);height:var(--cell-size);padding:0;border:1px solid #c4d1b8;border-bottom:3px solid #b5c5a7;border-radius:5px;background:#e0e7d6;color:var(--ink);font-family:system-ui,sans-serif;font-size:18px;font-weight:750;line-height:1;touch-action:manipulation;user-select:none}.cell:hover:not(.revealed){background:#cfdcc0}.cell:active:not(.revealed){border-bottom-width:1px;transform:translateY(1px)}.cell:focus-visible{position:relative;z-index:1;outline:3px solid #26332d;outline-offset:1px}.cell.revealed{background:#f6f7f0;border:1px solid #d8dfd0;border-bottom-width:1px;border-radius:4px;cursor:default}.cell.flagged{background:#f9e1d4;color:var(--coral-dark);border-color:#edc5b4;border-bottom-color:#d6a692}.cell.mine{background:#f5b2a0;border-color:#e59580;color:#7d2416}.cell.n1{color:#306148}.cell.n2{color:#326190}.cell.n3{color:#b8462c}.cell.n4{color:#79529b}.cell.n5{color:#8d4e1a}.cell.n6{color:#257c7e}.cell.n7{color:#30343a}.cell.n8{color:#647059}.scroll-hint{margin-top:4px;text-align:center;font-size:10px;color:#6e7964;line-height:1.5;display:none}.scroll-hint span{margin-right:4px;font-size:14px}.game-card:has(.board[data-cols="16"]) .scroll-hint{display:block}.game-actions{display:flex;align-items:center;justify-content:center;gap:9px;margin-top:21px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;min-height:45px;font-size:12px;font-weight:700;text-decoration:none;padding:10px 18px;transition:background .15s ease,border-color .15s ease,transform .15s ease}.button:hover{transform:translateY(-1px)}.button-primary{background:var(--coral);color:#44251d;border-color:var(--coral)}.button-primary:hover{background:#f78b72;border-color:#f78b72}.button-primary>span{font-family:system-ui,sans-serif;font-size:19px;line-height:1}.button-secondary{background:var(--card);border-color:#d8dfcf}.button-secondary:hover{background:#f3f6ed}.button-secondary[aria-pressed=true]{background:var(--sage-dark);border-color:var(--sage-dark);color:#fffefa}.button-secondary>span{font-size:18px;line-height:1}.button-icon{background:transparent;padding:10px 9px;color:#70786a;font-size:11px;gap:5px}.button-icon svg,.button-share svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}.button-icon[aria-pressed=true]{color:var(--ink);background:var(--sage)}.control-hint{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px;font-size:10px;color:var(--muted);margin-top:15px;line-height:1.7}.hint-dot{width:5px;height:5px;border-radius:50%;background:#9baa8e;margin-right:1px}.hint-divider{color:#c5cabb;padding-inline:3px}.keyboard-hint{text-align:center;color:#929887;font-size:9px;margin-top:5px}
.game-sidebar{display:flex;flex-direction:column;gap:18px}.record-card{background:#e9efdf;border:1px solid #dae4ce;border-radius:var(--radius);padding:25px 23px 19px}.side-heading{display:flex;align-items:center;justify-content:space-between}.small-label{font-family:system-ui,sans-serif;font-size:9px;letter-spacing:.1em;color:#6d8260}.record-symbol{color:#779668;font-size:24px;line-height:1}.record-card h2{font-size:23px;margin-top:10px}.record-intro{color:#78816f;font-size:12px;line-height:1.8;margin-top:13px}.record-list{margin:21px 0 0}.record-list>div{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid #d4dfc8}.record-list dt{font-size:11px;color:#6a7960}.record-list dd{margin:0;font-family:system-ui,sans-serif;font-size:22px;font-weight:650;line-height:1.3;letter-spacing:-.02em}.record-list .record-best{display:block;padding:13px 0 15px}.record-best dd{margin-top:6px;font-size:34px;min-height:44px;font-variant-numeric:tabular-nums}.unit{font-family:"Malgun Gothic",system-ui,sans-serif;font-size:10px;font-weight:400;color:#7b8870;margin-left:6px}.record-status{color:#6b7e5e;font-size:10px;line-height:1.7;margin-top:8px}.button-share{width:100%;margin-top:17px;background:#f9fcf4;border-color:#d0dcc2;color:#3d5631;font-size:12px}.button-share:hover{background:#fffefa}.share-status{font-size:10px;color:#4a693d;line-height:1.6;margin-top:6px;min-height:0}.share-status:empty{display:none}.local-note{font-size:9px;line-height:1.8;color:#829275;text-align:center;margin-top:13px}.quick-tip{display:flex;align-items:flex-start;gap:10px;background:#f4eee2;border:1px solid #eae1d0;border-radius:17px;padding:19px 18px}.tip-icon{display:grid;place-items:center;border:1px solid #b6a07c;width:21px;height:21px;border-radius:50%;color:#a0855b;font-size:13px;line-height:1;flex-shrink:0;margin-top:2px}.quick-tip h2{font-size:12px;letter-spacing:-.035em}.quick-tip p{font-size:11px;color:#8a806e;margin-top:8px;line-height:1.8}.quick-tip a{display:inline-block;font-size:10px;font-weight:650;color:#937850;text-decoration:none;margin-top:11px}.quick-tip a:hover{text-decoration:underline}
.how-section{padding-top:66px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:24px}.section-heading h2,.faq-section h2{font-size:26px;margin-top:6px}.section-heading>p{color:#8a8d81;font-size:12px;line-height:1.7;text-align:right}.rule-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.rule-card{padding:24px 23px;background:var(--card);border:1px solid var(--line);border-radius:18px}.step-number{display:inline-block;font-family:system-ui,sans-serif;font-size:12px;font-weight:700;color:var(--coral-dark);background:#fae9df;padding:4px 9px;border-radius:6px}.rule-card h3{font-size:16px;margin-top:16px}.rule-card p{font-size:12px;color:#808677;line-height:1.95;margin-top:10px}.example-section{display:flex;gap:42px;align-items:center;margin-top:32px;padding:29px 40px;border:1px solid #e3e5d9;border-radius:20px;background:#eff1e6}.rule-example{display:grid;grid-template-columns:repeat(3,42px);gap:4px;flex-shrink:0;background:#d5dfca;padding:7px;border-radius:11px}.rule-example span{width:42px;height:42px;border:1px solid #c3d0b6;border-bottom:3px solid #b4c4a6;border-radius:5px;background:#e1e9d7;display:grid;place-items:center}.rule-example .example-number{background:#f8faf4;color:#306148;border:1px solid #d0dcc4;font-family:system-ui,sans-serif;font-size:25px;font-weight:700}.rule-example .example-flag{background:#f9e1d4;color:var(--coral-dark);border-color:#edc5b4;border-bottom-color:#d6a692;font-size:27px}.example-copy h2{font-size:22px;margin-top:4px}.example-copy>p:not(.section-kicker){font-size:12px;color:#748068;line-height:1.9;margin-top:10px}.example-copy strong{font-weight:700;color:#405b34}.example-copy .example-note{color:#839177;font-size:11px!important}.guide-section{padding-top:58px}.text-link{font-size:12px;color:#65785c;text-decoration:none;white-space:nowrap;padding-bottom:3px}.strategy-list{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding-top:18px;border-top:1px solid var(--line)}.strategy-list article{display:flex;align-items:start;gap:13px}.strategy-mark{color:#8fa181;font-size:24px;font-family:system-ui,sans-serif;font-weight:500;line-height:1.4;flex-shrink:0}.strategy-list h3{font-size:14px}.strategy-list p{font-size:11px;line-height:1.95;color:#858b7b;margin-top:10px}.faq-section{display:grid;grid-template-columns:1fr 1.8fr;gap:56px;padding:64px 0 56px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{font-size:12px;font-weight:650;padding:17px 28px 17px 0;list-style:none;cursor:pointer;position:relative;letter-spacing:-.025em}summary::-webkit-details-marker{display:none}summary::after{content:"+";position:absolute;right:2px;top:12px;font-family:system-ui,sans-serif;font-weight:400;font-size:24px;color:#8b9781}details[open] summary::after{content:"−"}details p{font-size:12px;color:#7b8572;line-height:1.9;padding:0 28px 18px 0}.site-footer{border-top:1px solid var(--line);padding:31px 0 37px;display:flex;flex-wrap:wrap;align-items:start;gap:20px;justify-content:space-between}.footer-brand{font-size:16px;font-weight:750;text-decoration:none;letter-spacing:-.05em}.footer-brand span{color:var(--coral)}.site-footer p{font-size:10px;color:#999e8f;margin-top:7px}.site-footer nav{display:flex;gap:22px;font-size:10px;color:#7d8574;padding-top:4px}.site-footer nav a{text-decoration:none}.footer-note{font-size:9px;color:#a1a698;padding-top:6px}

@media (min-width:1200px){.board{--cell-size:39px}}
@media (max-width:1050px){.play-layout{grid-template-columns:minmax(0,1fr) 255px;gap:18px}.game-card{padding-inline:22px}.game-topline h2{font-size:18px}.difficulty-control{display:block}.difficulty-control>span{display:none}.record-card{padding-inline:19px}.metric{padding-inline:13px}.board{--cell-size:33px}.hero-art{margin-right:35px}.game-actions{gap:6px}.button{padding-inline:13px}.button-icon{padding-inline:7px}.strategy-list{gap:18px}.faq-section{gap:32px}}
@media (max-width:850px){.shell{width:calc(100% - 40px)}.site-header{height:85px}.hero{padding-top:34px;padding-bottom:30px}h1{font-size:43px}.hero-art{margin-right:24px}.play-layout{grid-template-columns:minmax(0,1fr) 234px;gap:14px}.game-card{padding:22px 17px 19px}.game-topline{align-items:start}.game-topline h2{font-size:16px}.section-kicker{font-size:9px}.difficulty-control select{font-size:10px;padding-left:8px;min-height:36px}.mode-tabs{margin-top:20px}.metric{padding-inline:9px}.metric strong{font-size:22px}.metric-label{font-size:9px}.metric-state #status{font-size:10px}.board-stage{padding:15px 8px 9px}.board{--cell-size:30px;gap:2px;padding:6px}.cell{font-size:16px}.button{font-size:11px;min-height:43px;padding:9px 11px;gap:6px}.button-icon{font-size:10px;padding-inline:5px}.record-card{padding:22px 18px 17px}.record-card h2{font-size:21px}.record-intro{font-size:11px}.small-label{font-size:8px}.quick-tip{padding:16px 13px;gap:8px}.quick-tip h2{font-size:11px}.quick-tip p{font-size:10px}.keyboard-hint{font-size:8px}.control-hint{font-size:9px}.section-heading h2,.faq-section h2{font-size:23px}.rule-card{padding:20px 18px}.rule-card h3{font-size:15px}.rule-card p{font-size:11px}.example-section{gap:28px;padding:27px 30px}.faq-section{grid-template-columns:1fr 1.55fr}.footer-note{width:100%;padding-top:0}}
@media (max-width:700px){.play-layout{display:block}.game-card{padding:24px}.game-topline h2{font-size:20px}.difficulty-control select{font-size:12px;min-height:40px}.mode-tab{font-size:13px;min-height:42px}.game-subtitle{margin-bottom:19px}.board-stage{padding:20px 10px 12px}.board{--cell-size:37px;gap:3px;padding:7px}.cell{font-size:18px}.game-metrics{grid-template-columns:1fr 1fr 1.5fr;padding:13px 0}.metric{padding-inline:16px}.metric-label{font-size:10px}.metric strong{font-size:24px}.metric-state #status{font-size:11px}.game-actions{gap:9px}.button{font-size:12px;min-height:45px;padding-inline:18px}.button-icon{font-size:11px;padding-inline:10px}.control-hint{font-size:10px}.keyboard-hint{font-size:9px}.game-sidebar{display:grid;grid-template-columns:1.1fr 1fr;gap:14px;margin-top:18px}.record-card{padding:22px}.record-intro{display:none}.record-card h2{font-size:20px}.record-list{margin-top:15px}.record-best dd{font-size:30px;min-height:38px}.record-list dd{font-size:20px}.quick-tip{padding:22px 18px;align-self:start}.quick-tip h2{font-size:12px}.quick-tip p{font-size:11px}.quick-tip a{font-size:11px}.how-section{padding-top:46px}.section-heading>p{display:none}.rule-cards{gap:12px}.rule-card{padding:19px 17px}.rule-card h3{font-size:14px}.rule-card p{font-size:11px}.example-section{padding:26px 22px;gap:24px}.rule-example{grid-template-columns:repeat(3,36px);gap:3px;padding:6px}.rule-example span{width:36px;height:36px}.example-copy h2{font-size:20px}.strategy-list{grid-template-columns:1fr;gap:23px;padding-top:24px}.strategy-list h3{font-size:15px}.strategy-list p{font-size:12px;margin-top:6px}.strategy-mark{min-width:20px}.guide-section{padding-top:44px}.faq-section{display:block;padding-top:46px}.faq-list{margin-top:24px}.site-footer nav{gap:16px}.header-nav{gap:18px;font-size:12px}.hero-art{grid-template-columns:repeat(3,37px);gap:4px;margin-right:14px}.art-cell{width:37px;height:37px;font-size:22px;border-radius:6px}.art-flag{font-size:28px}.spark-one{left:-25px;top:0;font-size:20px}.spark-two{right:-21px;bottom:-9px;font-size:25px}.hero{gap:16px}h1{font-size:39px}.hero-description{font-size:13px}.eyebrow{font-size:11px}}
@media (max-width:480px){.shell{width:calc(100% - 28px)}.site-header{height:76px}.brand{font-size:16px;gap:9px}.brand-mark{width:28px;height:28px}.brand-note{font-size:7px;margin-top:5px}.header-nav{gap:14px;font-size:10px}.header-nav a:nth-child(2){display:none}.hero{padding:30px 4px 27px;align-items:end;gap:10px}h1{font-size:34px;margin:9px 0 12px;white-space:nowrap}.eyebrow{font-size:10px;gap:7px}.hero-description{font-size:12px;line-height:1.8}.mobile-break{display:block}.hero-art{grid-template-columns:repeat(3,27px);gap:3px;margin-right:12px;margin-bottom:12px}.art-cell{width:27px;height:27px;border-radius:5px;font-size:17px}.art-flag{font-size:22px;box-shadow:0 3px 0 #d9654c}.art-closed{box-shadow:0 3px 0 #c6d2b7}.spark-one{left:-20px;top:-7px;font-size:16px}.spark-two{right:-17px;bottom:-9px;font-size:21px}.game-card{padding:20px 16px 17px;border-radius:20px}.game-topline{gap:8px}.game-topline h2{font-size:17px}.section-kicker{font-size:8px;letter-spacing:.1em}.difficulty-control select{font-size:11px;min-height:38px;padding-right:24px}.mode-tabs{margin-top:19px}.mode-tab{font-size:12px;min-height:40px}.game-subtitle{font-size:10px;margin:9px 0 17px}.game-metrics{border-radius:11px;padding:12px 0;margin-bottom:16px}.metric{padding-inline:11px}.metric-label{font-size:9px}.metric strong{font-size:22px}.metric-state #status{font-size:10px}.board-stage{padding:14px 5px 8px;border-radius:13px}.board{--cell-size:min(34px,calc((100vw - 104px)/9));gap:2px;padding:6px;border-radius:9px}.board[data-cols="16"]{--cell-size:32px}.cell{font-size:17px;border-radius:4px}.scroll-hint{font-size:9px;padding-inline:4px}.game-actions{gap:7px;margin-top:18px}.button{font-size:11px;min-height:44px;padding:10px 14px;gap:6px}.button-icon{font-size:10px;padding-inline:6px;gap:4px}.button-icon svg{width:16px;height:16px}.control-hint{font-size:9px;gap:4px;margin-top:13px}.hint-divider{padding-inline:1px}.keyboard-hint{display:none}.game-sidebar{grid-template-columns:1fr;gap:12px;margin-top:14px}.record-card{padding:20px;display:grid;grid-template-columns:1fr 1fr;gap:0 20px;border-radius:20px}.side-heading{grid-column:1/-1}.record-card h2{font-size:19px;margin-top:9px;grid-column:1/-1}.record-list{grid-column:1/-1;margin-top:16px;display:grid;grid-template-columns:1.55fr 1fr 1fr;gap:10px;border-top:1px solid #d4dfc8;padding-top:13px}.record-list>div,.record-list .record-best{display:block;border:0;padding:0}.record-list>div+div{border-left:1px solid #d4dfc8;padding-left:13px}.record-list dt{font-size:9px;line-height:1.5;min-height:26px}.record-list dd,.record-best dd{font-size:24px;margin-top:5px;min-height:31px}.unit{font-size:9px;margin-left:3px}.record-status{grid-column:1;margin-top:12px;align-self:center;font-size:9px}.button-share{grid-column:2;margin-top:12px;min-height:40px;font-size:10px;padding:8px 10px}.share-status{grid-column:1/-1;text-align:center;font-size:10px;margin-top:9px}.local-note{grid-column:1/-1;margin-top:11px;font-size:9px;line-height:1.6}.local-note br{display:none}.quick-tip{padding:17px 18px;gap:11px;border-radius:15px}.quick-tip p{margin-top:6px}.quick-tip a{margin-top:7px;font-size:10px}.how-section{padding-top:40px}.section-heading{margin-bottom:19px}.section-heading h2,.faq-section h2{font-size:22px}.rule-cards{grid-template-columns:1fr;gap:11px}.rule-card{padding:19px 20px;display:grid;grid-template-columns:38px 1fr;column-gap:12px;align-items:start;border-radius:15px}.step-number{font-size:10px;padding:4px 7px;justify-self:start}.rule-card h3{font-size:15px;margin:1px 0 0}.rule-card p{grid-column:2;margin-top:7px;font-size:12px;line-height:1.9}.example-section{margin-top:20px;padding:22px 20px;display:block;border-radius:17px}.rule-example{width:max-content;margin:0 auto 19px;grid-template-columns:repeat(3,34px)}.rule-example span{width:34px;height:34px}.example-copy h2{font-size:21px;margin-top:5px}.example-copy>p:not(.section-kicker){font-size:12px}.example-copy .example-note{font-size:11px!important}.guide-section{padding-top:37px}.guide-section .section-heading{display:block}.text-link{display:inline-block;margin-top:12px;font-size:11px}.strategy-list{gap:22px;padding-top:21px}.strategy-list h3{font-size:14px}.strategy-list p{font-size:11px}.faq-section{padding-top:39px;padding-bottom:36px}.faq-list{margin-top:18px}summary{font-size:11px;padding:16px 24px 16px 0}details p{font-size:11px}.site-footer{display:block;padding:25px 0 29px}.footer-brand{font-size:15px}.site-footer nav{font-size:10px;gap:20px;margin-top:16px;padding-top:0}.footer-note{display:block;margin-top:19px;font-size:8px}}
@media (max-width:350px){h1{font-size:30px}.hero-art{display:none}.game-card{padding-inline:13px}.game-topline h2{font-size:16px}.difficulty-control select{font-size:10px}.metric{padding-inline:8px}.game-actions{gap:5px}.button{padding-inline:11px}.button-icon{padding-inline:4px}.record-list{grid-template-columns:1.6fr 1fr 1fr}.record-list>div+div{padding-left:9px}.board{--cell-size:min(32px,calc((100vw - 94px)/9))}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}.button:hover{transform:none}}
.cell.start-cell{background:#f7a08b;border-color:#eb917a;border-bottom-color:#ce705a;color:#45251d}.cell.start-cell:hover{background:#f58d73}.reading p{margin-top:16px}.reading .note{margin-top:22px}
.board-scroll{container-type:inline-size}.board[data-cols="9"]{--cell-size:min(36px,calc((100cqw - 32px)/9))}