:root{color:#2b1d0f;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#ecdfc1;font-family:Segoe UI,Hiragino Sans,Yu Gothic UI,sans-serif;font-weight:400;line-height:1.5}html,body,#root{width:100%;min-height:100dvh;margin:0}body{background:#ecdfc1}button,input,textarea,select{font:inherit}*{box-sizing:border-box}.panel,.navigator{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffaf2db;border:1px solid #593b161f;border-radius:24px;box-shadow:0 18px 42px #4f391f1f}.board-panel,.moves-panel,.navigator,.info-panel{padding:18px}.panel-header{text-align:left;justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.panel-header.compact{margin-bottom:0}.eyebrow{color:#93622b;letter-spacing:.18em;text-transform:uppercase;margin:0 0 4px;font-size:.78rem;font-weight:800}.panel-header h1,.panel-header h2{color:#24180d;margin:0}.panel-header h1{font-size:clamp(1.9rem,3vw,2.7rem)}.panel-header h2{font-size:clamp(1.3rem,2vw,1.8rem)}.subtle{color:#6a573f;max-width:34rem;margin:0;font-size:.93rem;line-height:1.55}.board-message{color:#2b1d0f;background:#ffffffb8;border:1px solid #593b1614;border-radius:16px;grid-template-columns:auto 1fr auto;gap:12px;padding:12px 14px;display:grid}.board-message-label,.board-message-meta{color:#8a6f4d;font-size:.8rem}.board-wrap{justify-content:center;align-items:center;display:flex}.board-shell{background:linear-gradient(135deg,#d9bd84 0%,#cda866 18%,#e5ca94 34%,#c59c58 52%,#ddb97f 70%,#b78945 100%);border-radius:6px;padding:14px;position:relative}.board-grid{aspect-ratio:10/10;background:#d8b15f;display:grid}.stone{border-radius:999px;width:74%;height:74%;position:absolute}.stone-black{background:radial-gradient(circle at 35% 30%,#575757 0%,#161616 48%,#050505 100%)}.stone-white{background:radial-gradient(circle at 30% 30%,#fff 0%,#efefef 42%,#d9d9d9 100%)}.action-button{color:#fffaf2;cursor:pointer;background:linear-gradient(135deg,#2e2014 0%,#704920 100%);border-radius:999px;padding:10px 16px;font-weight:700}.action-button-secondary{background:linear-gradient(135deg,#7d4730 0%,#b16540 100%)}.action-button-muted{background:linear-gradient(135deg,#5f6948 0%,#829061 100%)}.move-item{background:#ffffffb3;border:1px solid #593b1614;border-radius:16px;grid-template-columns:88px 1fr auto;gap:10px;padding:12px 14px;display:grid}.move-item-active{border-color:#d7653580}.move-coord{text-align:center;font-family:Courier New,monospace}.move-note{color:#8b7154;font-size:.84rem}.info-card{background:#ffffffb8;border:1px solid #593b1614;border-radius:18px;padding:14px}.helper-text{color:#7a664c;font-size:.88rem}