:root{--bg-primary: #FEF0E4;--bg-secondary: #F5E6D3;--bg-card: #FFFFFF;--bg-game: #FEF0E4;--color-primary: #8B5E83;--color-primary-light: #B88EB0;--color-primary-dark: #6B4566;--color-accent: #E8A065;--color-accent-light: #F2C99B;--color-success: #5CB85C;--color-warning: #F5A623;--color-danger: #E85D5D;--text-primary: #3D2B35;--text-secondary: #7A6570;--text-muted: #A89098;--text-on-primary: #FFFFFF;--diff-easy: #5CB85C;--diff-medium: #F5A623;--diff-hard: #E85D5D;--diff-extra: #6B4566;--shadow-sm: 0 2px 6px rgba(60,30,50,.06), 0 1px 2px rgba(60,30,50,.04);--shadow-md: 0 4px 14px rgba(60,30,50,.08), 0 2px 4px rgba(60,30,50,.04);--shadow-lg: 0 10px 28px rgba(60,30,50,.1), 0 4px 8px rgba(60,30,50,.06);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 26px;--font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-display: "Inter", system-ui, -apple-system, sans-serif;--transition-fast: .15s ease;--transition-normal: .25s 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20px;color:var(--text-muted)}.empty-state-icon{font-size:40px;margin-bottom:12px;opacity:.5}.hills-bg{position:absolute;bottom:0;left:0;right:0;height:100px;pointer-events:none;overflow:hidden;opacity:.3}.hills-bg:before,.hills-bg:after{content:"";position:absolute;bottom:-20px;width:200%;height:80px;border-radius:50% 50% 0 0}.hills-bg:before{left:-50%;background:var(--color-accent-light)}.hills-bg:after{left:-30%;bottom:-30px;background:var(--bg-secondary)}.loading-spinner{width:32px;height:32px;border:3px solid var(--bg-secondary, #F5E6D3);border-top-color:var(--color-primary, #8B5E83);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.game-loading{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--bg-primary);z-index:15}.game-loading .loading-spinner{width:40px;height:40px}.game-error{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:var(--bg-primary);z-index:15;padding:32px;text-align:center}.game-error-icon{font-size:48px;opacity:.5}.game-error p{color:var(--text-secondary);font-size:14px;line-height:1.5}.landscape-hint{display:none;position:fixed;bottom:16px;left:50%;transform:translate(-50%);background:#3d2b35d9;color:#fff;padding:8px 20px;border-radius:20px;font-size:12px;font-weight:600;z-index:50;backdrop-filter:blur(6px);animation:fadeIn .3s ease;pointer-events:none}@media(max-width:360px){.games-grid{gap:8px}.game-card-thumb{font-size:36px;padding:8px 6px 4px}.game-card-title{font-size:22px}.game-card-info{padding:6px 8px}.game-card-desc{font-size:11px}}@media(min-width:768px){.games-grid{grid-template-columns:repeat(3,1fr)}}@media(min-width:1024px){.games-grid{grid-template-columns:repeat(4,1fr)}.home{max-width:800px}}@media(max-height:480px)and (orientation:landscape){.header{min-height:40px;padding:6px 12px}.header-title{font-size:18px}.home-hero{padding:4px 0 8px;gap:4px}.brand-logo{width:40px;height:40px}.home-hero h1{font-size:22px}.home-hero p{display:none}.games-grid{grid-template-columns:repeat(4,1fr);gap:8px}.game-card-thumb{aspect-ratio:5 / 4}.diff-body{gap:8px;padding:0 24px}.diff-face{width:100px;height:100px}.diff-face canvas{width:100px;height:100px}.diff-label{font-size:26px}.diff-actions{padding:8px 24px 16px}.game-hud-overlay{padding:4px 8px}.hud-btn{width:36px;height:36px;font-size:16px}.hud-score-pill{padding:4px 12px}}