@keyframes bouncePop{0%{transform:rotateY(180deg) scale(1)}50%{transform:rotateY(180deg) scale(1.15)}to{transform:rotateY(180deg) scale(.95)}}@keyframes spin{to{transform:rotate(360deg)}}:root{--white:#ffffff;--text-muted:#94a3b8;--border-color:#334155;--bg-dark:#0f172a;--surface-dark:#1e293b;--border-dark:#334155;--primary-rose:#f43f5e;--rose-light:#ffe4e6;--rose-bg:#fff1f2;--rose-border:#fecdd3;--rose-dark:#be123c}body{background-color:var(--bg-dark);color:#f8fafc;font-family:"Kanit",sans-serif;margin:0;padding:0;-webkit-font-smoothing:antialiased;line-height:1.6}.game-container{max-width:600px;margin:20px auto;text-align:center}.game-header{background:var(--white);padding:15px 20px;border-radius:20px;box-shadow:0 10px 30px rgba(244,63,94,.1);margin-bottom:20px;display:flex;justify-content:space-between;align-items:center;border:2px solid var(--rose-light)}.stat-item{text-align:center}.stat-val{font-size:24px;font-weight:800;display:block;line-height:1}.stat-lbl{font-size:12px;color:#64748b;font-weight:700;text-transform:uppercase}.board{display:grid;gap:10px;margin:0 auto;padding:15px;background:var(--rose-bg);border-radius:24px;border:4px solid var(--rose-border);width:100%;box-sizing:border-box;height:calc(100vh - 200px);max-height:800px}.card-inner,.memory-card{position:relative;width:100%;height:100%}.memory-card{perspective:1000px;cursor:pointer}.card-inner{transition:transform .5s cubic-bezier(.175,.885,.32,1.275);transform-style:preserve-3d}.memory-card.flipped .card-inner{transform:rotateY(180deg)}.memory-card.matched .card-inner{transform:rotateY(180deg) scale(.95)}.memory-card.matched{cursor:default;pointer-events:none}.card-front{position:absolute}.card-back,.card-front{width:100%;height:100%;backface-visibility:hidden;display:flex;align-items:center;justify-content:center;border-radius:16px;box-shadow:0 4px 10px rgba(0,0,0,.1);user-select:none}.card-front{background:linear-gradient(135deg,var(--primary-rose),#fb7185);color:#fff;border:4px solid var(--primary-rose)}.card-back{background:#fff;transform:rotateY(180deg);border:4px solid var(--rose-border);position:relative;transition:background-color .4s ease,border-color .4s ease,opacity .4s ease}.memory-card.matched .card-back{background-color:#ecfdf5;border-color:#10b981;opacity:.7}.match-icon{position:absolute;bottom:-5px;right:-5px;background:#10b981;color:#fff;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 4px 10px rgba(0,0,0,.2);border:3px solid #fff;opacity:0;transform:scale(0);transition:all .4s cubic-bezier(.175,.885,.32,1.275);z-index:10}.btn-play svg,.match-icon svg{width:14px;height:14px;fill:currentColor}.memory-card.matched .match-icon{opacity:1;transform:scale(1)}.success-bounce{animation:bouncePop .6s cubic-bezier(.175,.885,.32,1.275)}.start-card{background:rgba(30,41,59,.7)!important;backdrop-filter:blur(8px);padding:40px 20px;border-radius:32px;border:2px solid rgba(255,255,255,.1)!important;box-shadow:0 20px 45px rgba(0,0,0,.3);color:#f8fafc!important}.start-emoji{font-size:60px;margin-bottom:10px}.start-title{color:var(--primary-rose);font-size:32px;font-weight:800;margin-bottom:5px;margin-top:0}.start-desc{color:#94a3b8;font-size:16px;margin-bottom:30px}.btn-play{background:var(--primary-rose);color:#fff;border:0;padding:20px 40px;font-size:22px;font-family:"Kanit";font-weight:800;border-radius:50px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 8px 0 var(--rose-dark),0 15px 20px rgba(244,63,94,.4);transition:.1s;width:100%;max-width:300px;margin-top:20px}.btn-play svg{width:22px;height:22px}.btn-play:active{transform:translateY(8px);box-shadow:0 0 0 var(--rose-dark)}#page-memory-game .leaderboard{background:#1e293b!important;border:1px solid #334155!important;margin-top:30px;border-radius:20px;overflow:hidden}#page-memory-game .leaderboard-wrapper{max-height:400px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--border-dark) var(--bg-dark);position:relative}#page-memory-game .leaderboard-wrapper::-webkit-scrollbar{width:6px}#page-memory-game .leaderboard-wrapper::-webkit-scrollbar-track{background:var(--bg-dark)}#page-memory-game .leaderboard-wrapper::-webkit-scrollbar-thumb{background:var(--border-dark);border-radius:3px}#page-memory-game .leaderboard-title,#page-memory-game .table-head th{background:#0f172a!important;border-bottom:1px solid #334155!important;font-weight:700}#page-memory-game .leaderboard-title{color:var(--primary-rose)!important;margin:0;padding:16px;font-size:18px;display:flex;align-items:center;justify-content:center;gap:8px}#page-memory-game .leaderboard-title svg{width:20px;height:20px;fill:#f59e0b}#page-memory-game .leaderboard-table{width:100%;border-collapse:collapse}#page-memory-game .table-head{font-size:14px}#page-memory-game .table-head th{position:sticky;top:0;z-index:10;padding:12px 10px;color:#94a3b8!important;box-shadow:0 2px 2px -1px rgba(0,0,0,.4)}#page-memory-game .table-head th.text-left{text-align:left}#page-memory-game #leaderboard-body td{padding:14px 10px;font-size:15px;border-bottom:1px solid #334155!important;vertical-align:middle}#page-memory-game #leaderboard-body tr:last-child td{border-bottom:none!important}#page-memory-game .rank-col{text-align:center}#page-memory-game .rank-num{font-weight:700;color:#94a3b8!important;font-size:16px}#page-memory-game .name-col{text-align:left;font-weight:700;color:#f8fafc!important}#page-memory-game .level-col{font-weight:800;color:#ff8093!important;font-size:16px;text-align:center}#page-memory-game .stats-col{font-size:12px;color:#cbd5e1!important;font-weight:700;text-align:center}.loader-td{padding:30px!important;color:#94a3b8;font-weight:500}.loader-td svg{width:18px;height:18px;animation:spin 1s linear infinite;vertical-align:middle;margin-right:6px}.hidden{display:none!important}.btn-control{background:#f1f5f9;border:0;width:40px;height:40px;border-radius:12px;color:#475569;cursor:pointer;transition:.2s;display:inline-flex;align-items:center;justify-content:center}.btn-control svg,.main-card h3 svg{width:18px;height:18px;fill:currentColor}.btn-control:hover{background:#e2e8f0;color:var(--bg-dark)}.seo-article{margin-top:50px;text-align:left;line-height:1.8;color:#f8fafc}.seo-accordion{background:var(--surface-dark);border:1px solid var(--border-dark);border-radius:24px;margin-bottom:25px;overflow:hidden;transition:border-color .3s}.seo-accordion[open]{border-color:var(--primary-rose)}.seo-accordion summary{padding:24px;font-size:19px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;user-select:none;outline:0}.seo-accordion summary::-webkit-details-marker{display:none}.summary-title-wrapper{display:flex;align-items:center;gap:12px}.summary-title-wrapper svg{width:24px;height:24px;flex-shrink:0}.accordion-header-text{font-size:19px;font-weight:700;margin:0;color:#f8fafc;line-height:1.4}.arrow-icon{width:20px;height:20px;fill:var(--text-muted);transition:transform .3s ease}.seo-accordion[open] summary .arrow-icon{transform:rotate(180deg);fill:var(--primary-rose)}.seo-accordion-content{border-top:1px solid rgba(255,255,255,.05);padding:20px 24px 24px}.alert-box{background:rgba(244,63,94,.02);border:1px dashed #f87171;padding:30px;border-radius:28px}.alert-title{font-size:24px;color:#f87171;margin-top:0;display:flex;align-items:center;gap:10px}.alert-title svg,.feature-title svg{width:26px;height:26px;fill:currentColor}.alert-desc{color:#fca5a5;opacity:.9;margin-top:0;margin-bottom:20px}.alert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-top:20px}.alert-card{background:rgba(255,255,255,.04);padding:15px;border-radius:15px;border:1px solid rgba(255,255,255,.02)}.alert-card strong{display:block;color:#f87171;margin-bottom:5px}.alert-card span{font-size:13px;color:#fca5a5}.alert-footer{margin-top:25px;text-align:center;font-weight:700;color:var(--primary-rose);margin-bottom:0}.feature-box{background:rgba(16,185,129,.02);border:1px solid #10b981;padding:30px;border-radius:28px}.feature-title{font-size:24px;color:#34d399;margin-top:0;display:flex;align-items:center;gap:10px}.feature-desc{color:#a7f3d0;font-size:16px;line-height:1.7;margin-top:0;margin-bottom:20px}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:25px}.feature-card{background:var(--bg-dark);padding:20px;border-radius:18px;border:1px solid var(--border-dark)}.feature-card-active{border:2px solid #16a34a}.feature-card h3{font-size:18px;margin-top:0;margin-bottom:10px;color:#34d399}.feature-card p,.feature-card ul{font-size:14px;color:var(--text-muted);margin-bottom:0}.feature-card ul{padding-left:20px;line-height:1.8}.feature-footer{margin-top:25px;padding:15px;background:rgba(16,185,129,.08);border-radius:15px;text-align:center}.feature-footer p{margin:0;font-weight:700;color:#34d399}.main-content-box{background:0 0}.main-desc{font-size:15px;opacity:.9;margin-top:0;margin-bottom:20px}.main-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:15px;margin-top:25px}.main-card{background:rgba(15,23,42,.2);padding:20px;border-radius:16px;border:1px solid var(--border-dark)}.main-card h3{font-size:16px;margin-top:0;color:var(--primary-rose);display:flex;align-items:center;gap:8px}.main-card p,.step-card p{font-size:13px;margin-bottom:0;opacity:.8;color:var(--text-muted)}.step-card h3,.steps-section{margin-top:10px}.steps-header{font-size:24px;border-left:5px solid var(--primary-rose);padding-left:15px;margin-bottom:25px;margin-top:0}.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.step-card{background:var(--surface-dark);padding:25px;border-radius:20px;border:1px solid var(--border-dark);position:relative;margin-top:15px}.step-badge{position:absolute;top:-15px;left:20px;background:var(--primary-rose);color:#fff;padding:5px 15px;border-radius:10px;font-weight:700;font-size:14px}.step-card h3{font-size:18px}.step-card p{font-size:14px;line-height:1.6}.faq-section{background:0 0}.faq-title{font-size:24px;margin-bottom:25px;text-align:center;margin-top:0}.faq-item{margin-bottom:20px;border-bottom:1px solid var(--border-dark);padding-bottom:15px}.faq-item:last-child{border-bottom:none;padding-bottom:0;margin-bottom:0}.faq-item h3{margin-bottom:5px;color:var(--primary-rose);font-size:16px;margin-top:0}.faq-item p{margin:0;font-size:15px;color:var(--text-muted)}@media (max-width:600px){.board{height:calc(100vh - 240px);padding:12px;gap:10px;border-radius:24px}.start-title{font-size:28px}.seo-accordion summary{padding:18px;font-size:17px}.seo-accordion-content{padding:0 18px 18px}.btn-control{width:44px;height:44px;border-radius:12px}}