.tool-header[data-astro-cid-lu6p3j3m]{text-align:center;margin-bottom:2rem}.tool-header[data-astro-cid-lu6p3j3m] h1[data-astro-cid-lu6p3j3m]{font-size:2rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.tool-header[data-astro-cid-lu6p3j3m] p[data-astro-cid-lu6p3j3m]{color:var(--text-secondary);font-size:1rem;max-width:600px;margin:0 auto}.controls-card[data-astro-cid-lu6p3j3m]{background:var(--card-bg);border-radius:16px;padding:1.5rem;margin-bottom:1.5rem;box-shadow:var(--shadow-sm)}.difficulty-row[data-astro-cid-lu6p3j3m],.theme-row[data-astro-cid-lu6p3j3m]{display:flex;align-items:center;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}.label[data-astro-cid-lu6p3j3m]{font-weight:600;color:var(--text-primary);min-width:80px}.difficulty-buttons[data-astro-cid-lu6p3j3m],.theme-buttons[data-astro-cid-lu6p3j3m]{display:flex;gap:.5rem;flex-wrap:wrap}.diff-btn[data-astro-cid-lu6p3j3m],.theme-btn[data-astro-cid-lu6p3j3m]{padding:.5rem 1rem;border-radius:8px;border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;font-size:.875rem;transition:all .2s}.diff-btn[data-astro-cid-lu6p3j3m]:hover,.theme-btn[data-astro-cid-lu6p3j3m]:hover{background:var(--bg-hover)}.diff-btn[data-astro-cid-lu6p3j3m].active,.theme-btn[data-astro-cid-lu6p3j3m].active{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}.stats-row[data-astro-cid-lu6p3j3m]{display:flex;justify-content:center;gap:2rem;margin:1.5rem 0;padding-top:1rem;border-top:1px solid var(--border-color)}.stat[data-astro-cid-lu6p3j3m]{text-align:center}.stat-label[data-astro-cid-lu6p3j3m]{display:block;font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.stat-value[data-astro-cid-lu6p3j3m]{display:block;font-size:1.5rem;font-weight:700;color:var(--text-primary);font-variant-numeric:tabular-nums}.action-row[data-astro-cid-lu6p3j3m]{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}.game-board[data-astro-cid-lu6p3j3m]{display:flex;justify-content:center;align-items:center;min-height:300px;background:var(--card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--shadow-sm)}.card-grid[data-astro-cid-lu6p3j3m]{display:grid;gap:.75rem;perspective:1000px}.card-grid[data-astro-cid-lu6p3j3m].easy,.card-grid[data-astro-cid-lu6p3j3m].medium{grid-template-columns:repeat(4,1fr)}.card-grid[data-astro-cid-lu6p3j3m].hard,.card-grid[data-astro-cid-lu6p3j3m].expert{grid-template-columns:repeat(6,1fr)}.card[data-astro-cid-lu6p3j3m]{aspect-ratio:1;width:80px;cursor:pointer;position:relative;transform-style:preserve-3d;transition:transform .5s}@media(max-width:640px){.card[data-astro-cid-lu6p3j3m]{width:60px}}.card[data-astro-cid-lu6p3j3m].flipped{transform:rotateY(180deg)}.card[data-astro-cid-lu6p3j3m].matched{animation:matchPulse .5s ease}.card[data-astro-cid-lu6p3j3m].disabled{pointer-events:none}.card-face[data-astro-cid-lu6p3j3m]{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:2rem;box-shadow:var(--shadow-sm)}.card-front[data-astro-cid-lu6p3j3m]{background:linear-gradient(135deg,var(--accent-color),var(--accent-secondary));color:#fff;font-size:1.5rem}.card-front[data-astro-cid-lu6p3j3m]:after{content:"?";font-weight:700}.card-back[data-astro-cid-lu6p3j3m]{background:var(--bg-primary);transform:rotateY(180deg);border:2px solid var(--border-color)}@keyframes matchPulse{0%{transform:rotateY(180deg) scale(1)}50%{transform:rotateY(180deg) scale(1.1)}to{transform:rotateY(180deg) scale(1)}}.start-message[data-astro-cid-lu6p3j3m]{text-align:center;color:var(--text-secondary)}.start-message[data-astro-cid-lu6p3j3m] p[data-astro-cid-lu6p3j3m]{margin-bottom:1rem;font-size:1.1rem}.modal-overlay[data-astro-cid-lu6p3j3m]{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:100}.modal-content[data-astro-cid-lu6p3j3m]{background:var(--card-bg);border-radius:20px;padding:2rem;text-align:center;max-width:400px;width:90%;box-shadow:var(--shadow-lg)}.win-icon[data-astro-cid-lu6p3j3m]{font-size:4rem;margin-bottom:1rem}.modal-content[data-astro-cid-lu6p3j3m] h2[data-astro-cid-lu6p3j3m]{font-size:1.75rem;margin-bottom:.5rem;color:var(--text-primary)}.modal-content[data-astro-cid-lu6p3j3m]>p[data-astro-cid-lu6p3j3m]{color:var(--text-secondary);margin-bottom:1.5rem}.win-stats[data-astro-cid-lu6p3j3m]{display:flex;justify-content:center;gap:2rem;margin-bottom:1.5rem}.win-stat[data-astro-cid-lu6p3j3m]{text-align:center}.win-stat-label[data-astro-cid-lu6p3j3m]{display:block;font-size:.75rem;color:var(--text-secondary);text-transform:uppercase}.win-stat-value[data-astro-cid-lu6p3j3m]{display:block;font-size:1.5rem;font-weight:700;color:var(--accent-color)}.win-badge[data-astro-cid-lu6p3j3m]{background:linear-gradient(135deg,gold,#fa0);color:#333;padding:.5rem 1rem;border-radius:20px;font-weight:700;margin-bottom:1.5rem;display:inline-block}.modal-actions[data-astro-cid-lu6p3j3m]{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-primary[data-astro-cid-lu6p3j3m]{background:var(--accent-color);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:10px;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary[data-astro-cid-lu6p3j3m]:hover{filter:brightness(1.1);transform:translateY(-1px)}.btn-secondary[data-astro-cid-lu6p3j3m]{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);padding:.75rem 1.5rem;border-radius:10px;font-weight:600;cursor:pointer;transition:all .2s}.btn-secondary[data-astro-cid-lu6p3j3m]:hover{background:var(--bg-hover)}.btn-large[data-astro-cid-lu6p3j3m]{padding:1rem 2rem;font-size:1.1rem}