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.tip{display:block}.hint-badge{position:absolute;top:-4px;right:-4px;min-width:16px;height:16px;border-radius:8px;background:var(--mt-primary);color:#fff;font-size:10px;font-weight:900;display:flex;align-items:center;justify-content:center;padding:0 3px;pointer-events:none;line-height:1}.walkthrough-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:1rem 0}.walkthrough-card{display:flex;flex-direction:column;background:#fff;border:1.5px solid var(--gp-lilac-soft);border-radius:12px;overflow:hidden;text-decoration:none;color:var(--gp-ink);transition:all .15s}.walkthrough-card:hover{border-color:var(--gp-primary-strong);box-shadow:0 4px 12px #d47a501a;transform:translateY(-2px)}.walkthrough-img{width:100%;aspect-ratio:4/3;overflow:hidden;background:var(--gp-parchment);display:flex;align-items:center;justify-content:center}.walkthrough-img img{width:100%;height:100%;object-fit:contain}.walkthrough-text{padding:10px 12px}.walkthrough-text h3{font-size:13px;font-weight:800;margin:4px 0 2px}.walkthrough-text p{font-size:11px;color:var(--gp-stone);line-height:1.4;margin:0}.level-tag{display:inline-block;padding:2px 8px;border-radius:6px;font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.05em}.tag-tutorial{background:var(--gp-badge-easy-bg);color:var(--gp-badge-easy-text)}.tag-medium{background:#fce883;color:var(--gp-badge-med-text)}.tag-hard{background:var(--gp-badge-hard-bg);color:var(--gp-error)}.tag-daily{background:var(--gp-badge-daily-bg);color:var(--gp-badge-daily-text)}.featured-tip{background:#fff;border:1.5px solid var(--gp-lilac-soft);border-radius:12px;padding:1.2rem;margin:1rem 0}.featured-tip-label{font-size:11px;font-weight:800;color:var(--gp-primary-strong);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem}.featured-tip h3{font-size:15px;font-weight:900;margin-bottom:.5rem}.featured-tip p{font-size:13px;line-height:1.7;color:var(--gp-brown-600);margin-bottom:.8rem}.featured-tip-link{font-size:13px;font-weight:700;color:var(--gp-primary-strong);text-decoration:none}.featured-tip-link:hover{text-decoration:underline}.strategy-list{margin:1rem 0}.strategy-list-title{font-size:14px;font-weight:900;margin-bottom:.8rem}.strategy-item{display:flex;flex-direction:column;padding:10px 12px;background:#fff;border:1.5px solid var(--gp-lilac-soft);border-radius:10px;text-decoration:none;color:var(--gp-ink);margin-bottom:8px;transition:all .15s}.strategy-item:hover{border-color:var(--gp-primary-strong)}.strategy-item strong{font-size:13px;font-weight:800}.strategy-item span{font-size:11px;color:var(--gp-stone);margin-top:2px}.download-box{display:flex;gap:2rem;align-items:center;background:#fff;border:1.5px solid var(--gp-parchment);border-radius:16px;padding:2rem;margin:1rem 0}.download-phone{flex-shrink:0;width:200px;border-radius:16px;overflow:hidden;box-shadow:0 8px 24px #0000001f}.download-phone img{width:100%;display:block}.download-text{flex:1}.download-text h2{font-size:1.4rem;font-weight:900;margin-bottom:.5rem}.download-text p{font-size:14px;line-height:1.7;color:var(--gp-brown-600);margin-bottom:1rem}.download-buttons{display:flex;gap:10px;flex-wrap:wrap}.store-btn{display:inline-flex;align-items:center;gap:6px;padding:12px 24px;background:var(--gp-primary-strong);color:#fff;border-radius:12px;font-weight:800;font-size:14px;text-decoration:none;transition:all .15s}.store-btn:hover{background:var(--gp-primary-dark)}.store-btn-outline{background:#fff;color:var(--gp-primary-strong);border:1.5px solid var(--gp-primary-strong)}.store-btn-outline:hover{background:var(--gp-cream-warm)}.section{max-width:720px;margin:0 auto;padding:.5rem 1rem}@media(max-width:420px){.walkthrough-grid{grid-template-columns:1fr}.download-box{flex-direction:column;text-align:center}.download-phone{width:120px}}.cell-invalid{visibility:hidden;pointer-events:none}.cell-xreveal{background:var(--gp-blush);position:relative;cursor:default}.x-ring{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;border:3px solid var(--mt-primary);font-weight:900;font-size:14px;color:var(--mt-primary);animation:pulse-ring 2s ease-in-out infinite}@keyframes pulse-ring{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}}.shape-hint{position:absolute;pointer-events:none;z-index:0;background:#d47a5038;border:2.5px solid rgba(212,122,80,.5)}.shape-hint-square{inset:10px;border-radius:4px}.shape-hint-wide{inset:12px 8px;border-radius:3px}.shape-hint-tall{inset:8px 12px;border-radius:3px}.cell-number{position:relative;z-index:1}.game-over-overlay{position:absolute;inset:0;background:#000000b3;z-index:700;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;border-radius:12px}.game-over-overlay.hidden{display:none}.game-over-overlay h2{color:#fff;font-size:28px}.game-over-overlay p{color:#fffc;font-size:14px}.signin-prompt-overlay{position:fixed;inset:0;background:#00000080;z-index:800;display:flex;align-items:center;justify-content:center;animation:pop-in .3s ease-out}.signin-prompt-card{background:#fff;border-radius:20px;padding:28px 24px;max-width:320px;width:90%;text-align:center;box-shadow:0 20px 60px #0003}.signin-prompt-btn{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--gp-linen);border-radius:24px;padding:10px 20px;font-size:14px;font-weight:700;color:var(--gp-ink);text-decoration:none;box-shadow:0 1px 3px #00000014;cursor:pointer;transition:box-shadow .15s}.signin-prompt-btn:hover{box-shadow:0 2px 8px #00000026}.signin-prompt-later{display:block;margin:12px auto 0;background:none;border:none;color:var(--gp-stone);font-size:13px;font-weight:700;cursor:pointer;text-decoration:underline}.hearts{display:flex;gap:2px;font-size:18px;align-items:center}.hearts .heart{transition:transform .15s,opacity .15s}.hearts .heart.lost{opacity:.2;transform:scale(.8)}.tutorial-hint{text-align:center;padding:6px 12px;margin:0 0 6px;font-size:13px;font-weight:700;color:var(--mt-secondary);background:var(--gp-lilac-bright);border-radius:8px;word-wrap:break-word;overflow-wrap:break-word}.tutorial-hint.hidden{display:none}