@font-face{font-family:"Kanit";font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/kanit-v17-latin_thai-regular.woff2)format("woff2")}@font-face{font-family:"Kanit";font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/kanit-v17-latin_thai-700.woff2)format("woff2")}:root{--bg-main:#0f172a;--surface:#1e293b;--surface-hover:#334155;--border:#334155;--border-light:rgba(255, 255, 255, 0.1);--text-main:#f8fafc;--text-muted:#94a3b8;--primary-cyan:#38bdf8;--primary-cyan-hover:#0284c7;--primary-indigo:#4f46e5;--primary-indigo-hover:#4338ca;--primary-gold:#fbbf24;--primary-green:#10b981;--danger:#ef4444;--danger-bg:rgba(239, 68, 68, 0.15);--success-bg:rgba(16, 185, 129, 0.15)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:"Kanit",sans-serif;background-color:var(--bg-main);color:var(--text-main);line-height:1.6;color-scheme:dark;-webkit-tap-highlight-color:transparent}.container{max-width:1100px;margin:0 auto;padding:0 16px;width:100%}.compact-header{text-align:center;padding:24px 16px 16px}.header-top-row{display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}.header-badge,.lang-selector-wrap{display:inline-flex;border-radius:999px}.header-badge{align-items:center;gap:6px;background:rgba(251,191,36,.1);color:var(--primary-gold);padding:4px 14px;font-size:.85rem;font-weight:600;border:1px solid rgba(251,191,36,.3)}.lang-selector-wrap{background:var(--surface);padding:3px;border:1px solid var(--border)}.lang-btn{background:0 0;border:0;color:var(--text-muted);padding:3px 10px;border-radius:999px;font-family:"Kanit";font-size:.78rem;font-weight:600;cursor:pointer;transition:.2s}.lang-btn.active{background:var(--primary-cyan);color:#0f172a;font-weight:700}.compact-header h1{font-size:1.85rem;color:var(--text-main);margin-bottom:6px}.compact-header p{font-size:.95rem;color:var(--text-muted)}.icon-svg{width:1.2em;height:1.2em;vertical-align:middle;fill:currentColor}.icon-svg.gold{fill:var(--primary-gold)}.tab-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;background:var(--surface);padding:6px;border-radius:16px;border:1px solid var(--border);margin:20px 0}.tab-btn{background:0 0;border:0;color:var(--text-muted);padding:12px 16px;border-radius:12px;font-family:"Kanit";font-size:.95rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease}.tab-btn.active{background:var(--primary-indigo);color:#fff;box-shadow:0 4px 12px rgba(79,70,229,.3)}.search-box-card{background:var(--surface);padding:20px;border-radius:20px;border:1px solid var(--border);margin-bottom:24px;box-shadow:0 10px 25px rgba(0,0,0,.2)}.search-input-wrap{position:relative;display:flex;align-items:center;margin-bottom:16px}.search-icon{position:absolute;left:16px;width:22px;height:22px;fill:var(--text-muted);pointer-events:none}.search-input-wrap input{width:100%;padding:16px 48px 16px 50px;border-radius:14px;border:2px solid var(--border);background:var(--bg-main);color:var(--text-main);font-family:"Kanit";font-size:1.1rem;outline:0;transition:.2s}.search-input-wrap input:focus{border-color:var(--primary-cyan);box-shadow:0 0 0 4px rgba(56,189,248,.15)}.btn-clear-input{position:absolute;right:14px;background:var(--surface-hover);border:0;color:var(--text-muted);width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:14px}.category-badges-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin}.cat-pill{white-space:nowrap;background:var(--bg-main);color:var(--text-muted);border:1px solid var(--border);padding:6px 14px;border-radius:999px;font-family:"Kanit";font-size:.85rem;cursor:pointer;transition:.2s}.cat-pill.active{background:var(--primary-cyan);color:#0f172a;font-weight:700;border-color:var(--primary-cyan)}.search-meta{display:flex;justify-content:space-between;align-items:center;font-size:.82rem;color:var(--text-muted);margin-top:10px}.tip-text{color:var(--primary-gold)}.questions-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px;margin-bottom:40px}.q-card-header,.question-card{display:flex;justify-content:space-between}.question-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:16px;transition:transform .15s,border-color .15s;cursor:pointer;position:relative;flex-direction:column}.question-card:hover{transform:translateY(-2px);border-color:var(--primary-cyan);box-shadow:0 6px 20px rgba(0,0,0,.25)}.q-card-header{align-items:flex-start;margin-bottom:8px}.q-cat{font-size:.72rem;font-weight:600;padding:2px 8px;border-radius:6px;background:rgba(56,189,248,.1);color:var(--primary-cyan)}.q-num{font-size:.75rem;color:var(--text-muted)}.q-text{font-size:.98rem;font-weight:600;color:var(--text-main);margin-bottom:12px}.q-ans-box{background:rgba(16,185,129,.1);border:1px dashed rgba(16,185,129,.3);border-radius:10px;padding:8px 12px;display:flex;justify-content:space-between;align-items:center}.q-ans-val{color:var(--primary-green);font-weight:700;font-size:1rem}.copy-icon-btn{color:var(--text-muted);font-size:.75rem;display:flex;align-items:center;gap:4px}.exam-card{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:30px;max-width:720px;margin:0 auto 30px;box-shadow:0 10px 30px rgba(0,0,0,.25);text-align:center}.exam-card h2{font-size:1.5rem;margin-bottom:6px;color:var(--text-main)}.exam-card .desc,.form-group label{font-size:.9rem;color:var(--text-muted);margin-bottom:24px}.form-group{text-align:left;margin-bottom:20px}.form-group label{display:block;font-size:.88rem;font-weight:600;margin-bottom:8px}.exam-select{width:100%;padding:14px 16px;border-radius:12px;border:2px solid var(--border);background:var(--bg-main);color:var(--text-main);font-family:"Kanit";font-size:1rem;outline:0}.radio-pill-group{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.count-pill{padding:12px;background:var(--bg-main);border:2px solid var(--border);border-radius:12px;color:var(--text-main);font-family:"Kanit";font-weight:600;cursor:pointer;transition:.2s}.count-pill.active{border-color:var(--primary-indigo);background:rgba(79,70,229,.15);color:#fff}.sound-toggle-box{display:flex;align-items:center;justify-content:center;gap:12px;margin:24px 0;font-size:.9rem;color:var(--text-muted)}.toggle-switch{position:relative;width:44px;height:24px}.toggle-switch input{opacity:0;width:0;height:0}.slider,.slider:before{position:absolute;transition:.3s}.slider{cursor:pointer;inset:0;background-color:var(--border);border-radius:24px}.slider:before{content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;border-radius:50%}input:checked+.slider{background-color:var(--primary-green)}input:checked+.slider:before{transform:translateX(20px)}.btn-retry-exam,.btn-start-exam{background:var(--primary-indigo);color:#fff;border:0;padding:16px 36px;font-size:1.1rem;font-family:"Kanit";font-weight:700;border-radius:16px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;max-width:320px;transition:.2s;box-shadow:0 6px 16px rgba(79,70,229,.3)}.btn-retry-exam:hover,.btn-start-exam:hover{transform:translateY(-2px);background:var(--primary-indigo-hover)}.exam-header-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.progress-wrap{flex:1;text-align:left}#questionProgressText{font-size:.85rem;color:var(--text-muted);font-weight:600}.progress-bar-bg{width:100%;height:8px;background:var(--bg-main);border-radius:999px;overflow:hidden;margin-top:4px}.progress-bar-fill{height:100%;background:var(--primary-cyan);border-radius:999px;transition:width .3s ease}.exam-timer-badge,.question-box{background:var(--bg-main);border:1px solid var(--border)}.exam-timer-badge{padding:6px 14px;border-radius:999px;display:flex;align-items:center;gap:6px;font-size:1rem;font-weight:700;color:var(--primary-gold);font-variant-numeric:tabular-nums}.question-box{border-radius:18px;padding:24px 20px;margin-bottom:20px;text-align:center}.q-category-tag{display:inline-block;font-size:.75rem;font-weight:600;padding:2px 10px;border-radius:999px;background:rgba(56,189,248,.1);color:var(--primary-cyan);margin-bottom:8px}.q-title{font-size:1.25rem;font-weight:700;color:var(--text-main);line-height:1.5}.choices-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.choice-btn{background:var(--bg-main);border:2px solid var(--border);border-radius:14px;padding:16px 14px;font-family:"Kanit";font-size:1rem;color:var(--text-main);cursor:pointer;transition:.15s;text-align:center;font-weight:600}.choice-btn:hover:not(:disabled){border-color:var(--primary-cyan);background:var(--surface-hover);transform:translateY(-2px)}.choice-btn.correct{background:var(--success-bg)!important;border-color:var(--primary-green)!important;color:var(--primary-green)!important}.choice-btn.wrong{background:var(--danger-bg)!important;border-color:var(--danger)!important;color:var(--danger)!important}.btn-quit-exam{background:0 0;border:0;color:var(--text-muted);font-size:.85rem;cursor:pointer;text-decoration:underline}.result-badge-icon{font-size:3.5rem;margin-bottom:8px}.result-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:24px 0}.stat-box{background:var(--bg-main);border:1px solid var(--border);padding:14px 8px;border-radius:14px;text-align:center}.stat-num{font-size:1.25rem;font-weight:800;color:var(--primary-cyan);display:block}.stat-lbl{font-size:.72rem;color:var(--text-muted);font-weight:600}.cert-action-box{background:rgba(251,191,36,.05);border:1px dashed rgba(251,191,36,.3);border-radius:16px;padding:18px;margin:24px 0}.cert-action-box h3{font-size:1.05rem;color:var(--primary-gold);margin-bottom:12px}.cert-input-row{display:flex;gap:10px;max-width:600px;margin:0 auto;flex-wrap:wrap;justify-content:center}.btn-gen-cert,.btn-submit-score,.cert-input-row input{border-radius:10px;font-family:"Kanit";font-size:.95rem}.cert-input-row input{flex:1;min-width:200px;padding:12px 16px;border:1px solid var(--border);background:var(--bg-main);color:var(--text-main);outline:0}.btn-gen-cert,.btn-submit-score{border:0;padding:12px 18px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}.btn-gen-cert{background:var(--primary-gold);color:#0f172a}.btn-submit-score{background:var(--primary-green);color:#fff;transition:.2s;box-shadow:0 4px 12px rgba(16,185,129,.3)}.btn-submit-score:hover{background:#059669;transform:translateY(-1px)}.btn-submit-score:disabled{opacity:.6;cursor:not-allowed;transform:none}.mistakes-box{text-align:left;margin:24px 0}.mistakes-box h3{font-size:1rem;color:var(--danger);margin-bottom:10px}.mistakes-list{display:flex;flex-direction:column;gap:10px;max-height:250px;overflow-y:auto}.mistake-item{background:var(--bg-main);border-left:4px solid var(--danger);padding:10px 14px;border-radius:8px;font-size:.9rem}.history-section{margin-top:40px;background:var(--surface);padding:24px;border-radius:20px;border:1px solid var(--border)}.content-section h3,.history-title{font-size:1.2rem;color:var(--text-main)}.history-title{display:flex;align-items:center;font-weight:700}.leaderboard-wrapper{max-height:500px;overflow-y:auto;border-radius:14px;padding-right:4px;scrollbar-width:thin}.leaderboard-item{justify-content:space-between;background:var(--bg-main);padding:12px 16px;border-radius:12px;margin-bottom:8px;border:1px solid var(--border);transition:.15s}.leaderboard-item.top-rank{background:rgba(251,191,36,.06);border-color:rgba(251,191,36,.3)}.faq-item summary,.lb-left,.leaderboard-item{display:flex;align-items:center}.lb-left{gap:12px}.lb-rank{font-size:1.1rem;font-weight:800;min-width:36px;color:var(--primary-cyan)}.lb-name{display:block;font-size:.95rem;color:var(--text-main)}.lb-cat{font-size:.75rem;color:var(--text-muted)}.lb-right{text-align:right}.lb-score{font-size:1rem;font-weight:800;color:var(--primary-green);display:block}.lb-time{font-size:.78rem;color:var(--primary-gold);font-variant-numeric:tabular-nums}.itkb-ad-wrapper{max-width:900px;margin:40px auto 20px;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:16px;text-align:center;box-sizing:border-box}.ad-label,.faq-item p,.info-card ul{color:var(--text-muted)}.ad-label{display:block;font-size:.72rem;letter-spacing:.5px;margin-bottom:8px;text-transform:uppercase}.ad-slot-container{min-height:100px;display:flex;justify-content:center;align-items:center;overflow:hidden;border-radius:10px;background:var(--bg-main)}.content-section{margin:40px auto 60px;max-width:900px;text-align:left;color:var(--text-main);line-height:1.8}.content-section h2{font-size:1.5rem;margin-bottom:12px}.content-section h3{margin:24px 0 10px}.grid-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:20px 0}.faq-item,.info-card{background:var(--surface);border:1px solid var(--border)}.info-card{border-radius:16px;padding:20px}.info-card ul{padding-left:20px;font-size:.9rem}.faq-item{border-radius:12px;margin-bottom:12px;overflow:hidden}.faq-item summary{padding:16px;cursor:pointer;font-weight:600;justify-content:space-between;list-style:none}.faq-item p{padding:0 16px 16px;font-size:.92rem}.app-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;padding:20px;z-index:9999;opacity:0;visibility:hidden;transition:.2s ease}.app-modal-overlay.active{opacity:1;visibility:visible}.modal-box{background:var(--surface);border:1px solid var(--border);border-radius:20px;max-width:400px;width:100%;padding:24px;text-align:center;transform:scale(.95);transition:.2s ease}.app-modal-overlay.active .modal-box{transform:scale(1)}.modal-icon{width:56px;height:56px;border-radius:50%;margin:0 auto 16px;display:flex;align-items:center;justify-content:center}.modal-icon.info{background:rgba(56,189,248,.15);color:var(--primary-cyan)}.modal-icon.danger{background:var(--danger-bg);color:var(--danger)}.modal-title{font-size:1.2rem;font-weight:700;margin-bottom:8px}.modal-text{font-size:.92rem;color:var(--text-muted);margin-bottom:20px}.modal-actions{display:flex;gap:10px;justify-content:center}.modal-btn{padding:10px 20px;border-radius:10px;font-family:"Kanit";font-weight:600;cursor:pointer;border:0;font-size:.95rem}.modal-btn-confirm{background:var(--primary-indigo);color:#fff}.modal-btn-cancel{background:var(--surface-hover);color:var(--text-muted)}@media (max-width:768px){.choices-grid,.tab-nav{grid-template-columns:1fr}.result-stats-grid{grid-template-columns:1fr 1fr}.grid-cards{grid-template-columns:1fr}.cert-input-row{flex-direction:column}.btn-gen-cert,.btn-submit-score{width:100%;justify-content:center}}
