:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:#273142;background:#f7f8fc;font-synthesis:none;--bg: #f7f8fc;--bg-tint: #f1f5ff;--surface: rgba(255, 255, 255, .68);--surface-strong: rgba(255, 255, 255, .88);--surface-muted: rgba(245, 247, 252, .72);--ink: #273142;--muted: #70798b;--accent: #e65f73;--accent-dark: #b83e54;--accent-blue: #4f7ee8;--line: rgba(79, 91, 118, .13);--hairline: rgba(255, 255, 255, .82);--shadow: 0 24px 56px rgba(49, 61, 91, .14), 0 3px 10px rgba(49, 61, 91, .08);--shadow-soft: 0 12px 30px rgba(49, 61, 91, .1), 0 2px 6px rgba(49, 61, 91, .06);--spring: .18s cubic-bezier(.2, .9, .25, 1.25)}*{box-sizing:border-box}html,body{overflow-x:hidden}body{margin:0;min-width:320px;min-height:100dvh;background:radial-gradient(circle at 12% -8%,rgba(255,211,218,.42),transparent 34%),radial-gradient(circle at 88% 2%,rgba(198,220,255,.46),transparent 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reduced-feedback{0%{opacity:.62}to{opacity:1}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.1s!important;animation-iteration-count:1!important;transition-duration:.1s!important}.primary-button:active,.secondary-button:active,.text-button:active,.glass-button:active,.header-button:active,.choice-row button:active,.level-card:active{transform:none}.life-pulse-0,.life-pulse-1,.board-shake-0,.board-shake-1{animation:reduced-feedback .1s ease both}.loading-spinner{animation:none;opacity:.7}}@media(max-height:760px){.rules-card span{min-height:44px}.game-title{padding-bottom:8px}.tool-bar{margin-top:8px}.tool-bar button{min-height:40px}}@media(min-width:760px)and (orientation:landscape){.game-page{width:min(100%,980px);display:grid;grid-template-columns:minmax(420px,600px) 260px;column-gap:28px;align-content:center}.game-header,.rules-card,.game-title{grid-column:1 / -1}.board-feedback{grid-column:1;grid-row:4 / span 4}.board-status,.game-message,.tool-bar{grid-column:2}.tool-bar{grid-template-columns:repeat(2,1fr);align-self:start}}