@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Shippori+Mincho:wght@500;700;800&family=Outfit:wght@400;600;700&display=swap";:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:#e2e8f0;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg-main:radial-gradient(circle at 50% 50%, #1a1c1e 0%, #0a0b0c 100%);--bg-card:#16181cb3;--bg-card-hover:#1e2228d9;--border-color:#ffffff14;--border-focus:#d4a35966;--primary:#d4a359;--primary-hover:#e5b66d;--secondary:#4a5568;--accent-red:#e53e3e;--accent-green:#38a169;--accent-blue:#3182ce;--wood-board:radial-gradient(ellipse at center, #f7dfbe 0%, #dfb582 100%);--wood-border:#7c582f;--wood-grid:#64442359;--shadow-sm:0 2px 8px #00000026;--shadow-md:0 8px 24px #0000004d;--shadow-lg:0 16px 48px #00000080;--glow-gold:0 0 15px #d4a35980;--glow-blue:0 0 12px #3182ce99;--glow-red:0 0 15px #e53e3e99;--cell-w:44px;--cell-h:48px;--piece-w:36px;--piece-h:40px;--piece-fs:1.15rem;background-color:#0c0d0e;font-family:Outfit,Inter,Hiragino Sans,Hiragino Kaku Gothic ProN,Meiryo,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-main);width:100vw;min-height:100vh;margin:0;overflow-x:hidden}#root{flex-direction:column;min-height:100vh;display:flex}.app-header{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);z-index:10;background:#0a0b0c99;justify-content:space-between;align-items:center;padding:.5rem 1.5rem;display:flex}.logo-section{align-items:center;gap:.6rem;display:flex}.logo-icon{clip-path:polygon(50% 0%,90% 25%,85% 100%,15% 100%,10% 25%);color:#121214;background:linear-gradient(135deg,#d4a359,#b8860b);justify-content:center;align-items:center;width:28px;height:28px;font-family:Shippori Mincho,Yu Mincho,YuMincho,Hiragino Mincho 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