:root{--bg-primary: #fdfcf7;--bg-secondary: #f6ebd9;--border-color: rgba(139, 90, 43, .15);--text-primary: #472d16;--text-secondary: #8c7258;--primary: #e05c7a}.sdk-page{max-width:800px;margin:0 auto;padding:2rem 1.5rem;color:var(--text-primary);font-family:system-ui,-apple-system,sans-serif}.sdk-breadcrumb{display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:var(--text-secondary);margin-bottom:2rem}.sdk-breadcrumb a{color:var(--text-secondary);text-decoration:none;transition:color .2s}.sdk-breadcrumb a:hover{color:var(--primary)}.sdk-breadcrumb span{color:var(--border-color)}.sdk-hero{text-align:center;margin-bottom:2.5rem}.sdk-h1{font-family:Georgia,serif;font-size:2.4rem;font-weight:800;color:#5c2d0e;margin-bottom:.75rem}.sdk-h1 span{display:inline-block;animation:bounce 2s infinite}.sdk-tagline{font-size:1.05rem;color:var(--text-secondary);line-height:1.6;max-width:500px;margin:0 auto}.sdk-container{display:none;margin-bottom:3rem}.sdk-container.active{display:block;animation:fadeIn .4s ease}.sdk-card{background:#ffffffb3;border:1px solid var(--border-color);border-radius:1.5rem;padding:2.5rem;position:relative;overflow:hidden;box-shadow:0 8px 32px #8b5a2b0d;backdrop-filter:blur(8px);text-align:center}.sdk-wblob{position:absolute;border-radius:50%;filter:blur(40px);opacity:.12;z-index:0}.sdk-wblob.b1{width:140px;height:140px;background:#e05c7a;top:-40px;left:-40px}.sdk-wblob.b2{width:160px;height:160px;background:#d4a017;bottom:-50px;right:-50px}.sdk-start-cover{width:100%;max-width:320px;aspect-ratio:16/9;object-fit:cover;border-radius:1rem;border:1px solid var(--border-color);margin-bottom:2rem}.sdk-rules{text-align:left;max-width:440px;margin:0 auto 2.5rem;position:relative;z-index:1}.sdk-rules h3{font-family:Georgia,serif;font-size:1.25rem;margin-bottom:.75rem;color:#5c2d0e}.sdk-rules ul{padding-left:1.25rem;color:var(--text-secondary);line-height:1.8;font-size:.95rem}.sdk-btn{display:inline-flex;align-items:center;justify-content:center;padding:.85rem 2.5rem;border-radius:2rem;font-size:1.05rem;font-weight:700;cursor:pointer;transition:all .25s;border:none;box-shadow:0 4px 14px #e05c7a40;position:relative;z-index:1}.start-game-btn{background:linear-gradient(135deg,#e05c7a,#c2385a);color:#fff}.start-game-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #e05c7a59}.board-card{padding:1.5rem}.board-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem}.timer-box{font-size:1.15rem;font-weight:700;color:#5c2d0e;font-family:monospace;background:#8b5a2b0d;padding:.4rem .8rem;border-radius:.75rem}.gbtn{background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);padding:.4rem 1rem;border-radius:.75rem;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s}.gbtn:hover{background:#8b5a2b0f;color:var(--text-primary)}.sudoku-grid-wrapper{width:100%;max-width:380px;margin:0 auto 1.5rem;aspect-ratio:1}.sudoku-grid{display:grid;grid-template-columns:repeat(9,1fr);width:100%;height:100%;background:#fff;border:3px solid #5c2d0e;border-radius:.5rem;overflow:hidden;box-shadow:0 4px 16px #8b5a2b14}.sdk-cell{aspect-ratio:1;border:1px solid rgba(92,45,14,.25);display:flex;align-items:center;justify-content:center;font-size:1.35rem;font-weight:500;cursor:pointer;user-select:none;transition:all .15s;background:#fff;box-sizing:border-box}.sdk-cell:nth-child(3n){border-right:2px solid #5c2d0e}.sdk-cell:nth-child(9n){border-right:none}.sdk-cell.sdk-grid-row-2,.sdk-cell.sdk-grid-row-5{border-bottom:2px solid #5c2d0e}.sdk-cell.is-clue{font-weight:800;color:#5c2d0e;background:#8b5a2b0a;cursor:default}.sdk-cell.is-user-value{color:var(--primary);font-weight:700}.sdk-cell.is-correct{color:#10b981!important;background:#10b9810f!important;font-weight:700}.sdk-cell.is-error{color:#dc2626!important;background:#dc26260f!important;animation:shake .3s}.sdk-cell:not(.is-clue):hover{background:#e05c7a0d}.sdk-cell.selected{background:#e05c7a1f!important;box-shadow:inset 0 0 0 2px var(--primary)}.sdk-cell.highlight-peer{background:#8b5a2b09}.keypad-panel{margin-top:1.25rem;border-top:1px solid var(--border-color);padding-top:1.25rem}.keypad-label{font-size:.9rem;font-weight:700;color:var(--text-secondary);margin-bottom:.75rem;text-transform:uppercase;letter-spacing:.05em}.keypad-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;max-width:380px;margin:0 auto}.num-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--border-color);background:#fff;color:var(--text-primary);font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #0000000a}.num-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:scale(1.05)}.erase-btn{width:auto;padding:0 1.2rem;border-radius:2rem;font-size:.95rem}.erase-btn:hover{background:#472d16;border-color:#472d16}.win-overlay{position:fixed;inset:0;background:#fdf6e3f2;backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .4s}.win-overlay.hidden{display:none!important}.win-dialog{background:#fff;border:1px solid var(--border-color);padding:3rem 2rem;border-radius:2rem;box-shadow:0 16px 48px #8b5a2b26;max-width:400px;text-align:center}.win-icon{font-size:4rem;margin-bottom:1rem}.win-dialog h2{font-family:Georgia,serif;font-size:1.8rem;margin-bottom:.75rem;color:#5c2d0e}.win-txt{font-size:1.1rem;color:var(--text-primary);margin-bottom:.5rem}.win-sub{font-size:.95rem;color:var(--text-secondary);margin-bottom:2rem}.solve-ok-btn{background:#472d16;color:#fff;box-shadow:0 4px 14px #472d1640}.solve-ok-btn:hover{transform:translateY(-2px)}.sdk-stats-section{margin-top:2rem}.sdk-stats-card{background:#ffffff80;border:1px solid var(--border-color);border-radius:1.5rem;padding:2rem;text-align:center}.stats-title{font-family:Georgia,serif;font-size:1.4rem;font-weight:700;color:#5c2d0e;margin-bottom:.25rem}.stats-subtitle{font-size:.9rem;color:var(--text-secondary);margin-bottom:1.75rem}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem}.stat-box{background:#fff;border:1px solid var(--border-color);padding:1.2rem;border-radius:1rem;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 4px 12px #8b5a2b05}.stat-icon{font-size:1.5rem;margin-bottom:.4rem}.stat-number{font-size:1.5rem;font-weight:800;font-family:monospace;background:linear-gradient(135deg,var(--primary),#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.3rem}.stat-label{font-size:.85rem;font-weight:600;color:var(--text-secondary);text-align:center}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-4px)}40%,80%{transform:translate(4px)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@media (max-width: 480px){.sdk-page{padding:1rem .75rem}.sdk-h1{font-size:1.8rem}.sdk-card{padding:1.5rem 1rem}.stats-grid{grid-template-columns:1fr}.sdk-cell{font-size:1.1rem}.num-btn{width:38px;height:38px;font-size:1.05rem}}