*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--page-bg: #f9f9f9;--text: #1a1a1b;--muted: #666;--tile-bg: #efefe6;--tile-selected-bg: #1a1a1b;--tile-selected-text: #fff;--nav-border: #e0e0e0;--dot-inactive: #ccc;--menu-bg: #fff;--menu-shadow: rgba(0, 0, 0, .12);--card-bg: #fff;--input-bg: #fff;--input-border: #ddd}:root.dark{--page-bg: #121213;--text: #fff;--muted: #999;--tile-bg: #2d2d2e;--tile-selected-bg: #fff;--tile-selected-text: #121213;--nav-border: #333;--dot-inactive: #444;--menu-bg: #2d2d2e;--menu-shadow: rgba(0, 0, 0, .4);--card-bg: #1a1a1b;--input-bg: #2d2d2e;--input-border: #444}body{font-family:-apple-system,BlinkMacSystemFont,Helvetica Neue,Arial,sans-serif;background:var(--page-bg);color:var(--text);min-height:100vh;transition:background .2s,color .2s}button{cursor:pointer;font-family:inherit}a{color:inherit;text-decoration:none}.app-container{height:100vh;height:100dvh;display:flex;flex-direction:column;max-width:600px;margin:0 auto;overflow:hidden}.app-content{flex:1;min-height:0;overflow-y:auto}.page{max-width:600px;margin:0 auto;padding:24px 16px}h1{font-size:2rem;font-weight:700;text-align:center;letter-spacing:.05em;margin-bottom:8px}h2{font-size:1.2rem;font-weight:600;margin-bottom:16px}.subtitle{text-align:center;color:#666;margin-bottom:32px;font-size:.95rem}.game-page{height:100%;display:flex;flex-direction:column;padding:10px 12px 14px;overflow:hidden}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(6px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}@keyframes pop{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes tileBounce{0%{transform:translateY(0) scale(1)}20%{transform:translateY(-18px) scale(1.06)}40%{transform:translateY(0) scale(.96)}60%{transform:translateY(-9px) scale(1.03)}80%{transform:translateY(0) scale(.99)}to{transform:translateY(0) scale(1)}}@keyframes rowReveal{0%{opacity:0;transform:scaleY(.5)}60%{opacity:1;transform:scaleY(1.04)}to{opacity:1;transform:scaleY(1)}}