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16px;transition:all .15s;display:flex}.judgment-btn--correct.is-active{border-color:var(--green-600);background:var(--green-50);color:var(--green-600)}.judgment-btn--wrong.is-active{border-color:var(--red-500);background:var(--red-50);color:var(--red-500)}.test-row{border:1px solid var(--gray-200);cursor:pointer;background:#fff;border-radius:10px;align-items:center;gap:16px;padding:16px 18px;transition:all .15s;display:flex}.test-row+.test-row{margin-top:8px}.test-row:hover{border-color:var(--green-600);background:var(--green-50)}.test-row--selected{border-color:var(--green-600);background:var(--green-50);box-shadow:0 0 0 3px #16a34a14}.test-row__radio{border:2px solid var(--gray-200);border-radius:999px;flex-shrink:0;place-items:center;width:20px;height:20px;display:grid}.test-row--selected .test-row__radio{border-color:var(--green-600)}.test-row--selected 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12px;display:grid}.file-chip{border:1px solid var(--gray-200);background:var(--slate-50);border-radius:10px;align-items:center;gap:12px;padding:12px 14px;display:flex}.file-chip__icon{background:var(--green-50);width:36px;height:36px;color:var(--green-600);border-radius:8px;flex-shrink:0;place-items:center;display:grid}.file-chip__name{color:var(--slate-800);word-break:break-all;font-size:13px;font-weight:600}.file-chip__size{color:var(--gray-400);margin-top:2px;font-size:12px}.file-chip__remove{width:28px;height:28px;color:var(--gray-400);cursor:pointer;background:0 0;border:0;border-radius:6px;flex-shrink:0;place-items:center;margin-left:auto;font-size:14px;display:grid}.pagination{align-items:center;gap:4px;display:flex}.pagination button{border:1px solid var(--gray-200);min-width:32px;height:32px;color:var(--slate-800);cursor:pointer;font-size:13px;font-weight:500;font-family:var(--font-sans);background:#fff;border-radius:6px;padding:0 8px}.pagination button:hover{background:var(--slate-50)}.pagination button.is-active{background:var(--green-600);color:#fff;border-color:var(--green-600)}.pagination button:disabled{color:var(--gray-400);cursor:not-allowed}.toast{background:var(--slate-800);color:#fff;box-shadow:var(--shadow-lg);z-index:9999;border-radius:10px;align-items:center;gap:8px;padding:10px 16px;font-size:13px;font-weight:500;display:flex;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.divider{background:var(--gray-200);height:1px;margin:16px 0}.grid-4{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.option-item{border:1px solid var(--gray-200);color:var(--slate-800);background:#fff;border-radius:8px;align-items:center;gap:12px;padding:12px 16px;font-size:14px;display:flex}.option-item__num{border:1px solid var(--gray-200);width:28px;height:28px;color:var(--gray-500);border-radius:999px;flex-shrink:0;place-items:center;font-size:12px;font-weight:600;display:grid}.flex{display:flex}.flex-col{flex-direction:column}.flex-1{flex:1}.grid{display:grid}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-6{gap:24px}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.muted{color:var(--gray-500)}.text-sm{font-size:13px}.text-xs{font-size:12px}.text-bold{font-weight:600}.dot{border-radius:999px;width:6px;height:6px;display:inline-block}.btn--text{color:var(--green-600);background:0 0;height:auto;padding:0 8px;font-weight:600}.btn--text-danger{color:var(--red-500);background:0 0;height:auto;padding:0 8px;font-weight:600}.avatar--teal{background:#0d9488}.avatar--violet{background:#7c3aed}.tabs{background:var(--gray-100);border-radius:999px;gap:2px;padding:4px;display:inline-flex}.tab{color:var(--gray-500);cursor:pointer;background:0 0;border:0;border-radius:999px;padding:6px 16px;font-size:13px;font-weight:600}.tab--active{background:var(--green-600);color:#fff}.auth-card__divider{align-items:center;gap:12px;margin:20px 0 16px;display:flex}.auth-card__divider:before,.auth-card__divider:after{content:"";background:var(--gray-200);flex:1;height:1px}.auth-card__divider span{color:var(--gray-400);font-size:12px}.test-row__right{align-items:center;gap:8px;display:flex}.test-header__timer{color:#ffffffb3;font-variant-numeric:tabular-nums;align-items:center;gap:6px;font-size:13px;display:flex}.q-nav-row{justify-content:space-between;align-items:center;padding-top:16px;display:flex}.level-bar{align-items:center;gap:3px;height:8px;display:flex}.level-bar__seg{background:var(--gray-200);border-radius:2px;flex:1;height:100%}.level-bar__seg.is-active{background:var(--green-600)}.dropzone__title{color:var(--slate-800);margin-bottom:6px;font-size:14px;font-weight:600}.dropzone__sub{color:var(--gray-500);margin-bottom:14px;font-size:12px}.file-chip{border:1px solid var(--gray-200);background:#fff;border-radius:10px;align-items:center;gap:12px;margin-top:12px;padding:12px 14px;display:flex}.file-chip__icon{background:var(--green-50);width:36px;height:36px;color:var(--green-600);border-radius:8px;place-items:center;display:grid}.file-chip__name{color:var(--slate-800);font-size:13px;font-weight:600}.file-chip__size{color:var(--gray-500);font-size:12px}.file-chip__remove{color:var(--gray-400);cursor:pointer;background:0 0;border:0;border-radius:6px;place-items:center;width:28px;height:28px;margin-left:auto;display:grid}.file-chip__remove:hover{background:var(--red-50);color:var(--red-500)}.screen-center{background:var(--slate-800);place-items:center;min-height:100vh;padding:24px;display:grid}@media (max-width:768px){.test-layout{flex-direction:column;height:auto;min-height:100vh}.test-layout__video{width:100%;min-width:0;padding:8px}.test-layout__content{overflow:visible}.video-stack{position:relative}.video-stack .video-tile--main{aspect-ratio:auto;width:100%;height:60vh}.video-stack .video-tile--self{aspect-ratio:3/4;z-index:5;border:2px solid #fff9;width:30%;max-width:120px;position:absolute;bottom:12px;right:12px;box-shadow:0 4px 12px #0006}.video-stack .video-tile--self .video-tile__label{padding:2px 6px;font-size:10px}.screen-center{place-items:start center;padding:16px;overflow-y:auto}.media-card{border-radius:14px;width:100%;padding:18px}.media-card .video-preview{max-height:40vh}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}