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.url-input{background:#120017;border:1px solid #ffffff1a;border-radius:8px;color:#fff;font-size:1rem;padding:1rem;width:100%}.smart-quiz .media-section .media-upload .file-input-section .title-input:focus,.smart-quiz .media-section .media-upload .file-input-section .url-input:focus,.smart-quiz .media-section .media-upload .url-input-section .title-input:focus,.smart-quiz .media-section .media-upload .url-input-section .url-input:focus{border-color:#6a0dad;box-shadow:0 0 0 3px #6a0dad1a;outline:none}.smart-quiz .media-section .media-upload .file-input-section .title-input::placeholder,.smart-quiz .media-section .media-upload .file-input-section .url-input::placeholder,.smart-quiz .media-section .media-upload .url-input-section .title-input::placeholder,.smart-quiz .media-section .media-upload .url-input-section .url-input::placeholder{color:#b8b8b8}.smart-quiz .media-section .media-upload .file-input-section .submit-btn,.smart-quiz .media-section .media-upload .file-input-section 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.url-preview{align-items:center;display:flex;flex-direction:column;height:160px;justify-content:center;padding:1rem}.smart-quiz .media-section .user-media-gallery .media-grid .media-item .url-preview span{font-size:2rem;margin-bottom:.5rem}.smart-quiz .media-section .user-media-gallery .media-grid .media-item .url-preview a{color:#6a0dad;font-weight:500;text-align:center;text-decoration:none}.smart-quiz .media-section .user-media-gallery .media-grid .media-item .url-preview a:hover{text-decoration:underline}.smart-quiz .media-section .user-media-gallery .media-grid .media-item .media-title{border-top:1px solid #ffffff1a;color:#fff;font-weight:500;padding:1rem}.smart-quiz .session-intro .intro-card{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:1fr 1fr}.smart-quiz .session-intro .intro-card .card{background:#1a1a2e;border:1px solid #ffffff1a;border-radius:16px;padding:2rem}.smart-quiz .session-intro .intro-card .card h2{color:#fff;font-size:1.5rem;margin:0 0 1rem}.smart-quiz .session-intro .intro-card .card ul{list-style:disc;margin:0 0 2rem;padding-left:1.5rem}.smart-quiz .session-intro .intro-card .card ul li{color:#b8b8b8;line-height:1.6;margin-bottom:.5rem}.smart-quiz .session-intro .intro-card .card .start-btn{background:#6a0dad;border:none;border-radius:12px;color:#fff;cursor:pointer;font-size:1.1rem;font-weight:600;padding:1rem 2rem;transition:all .2s ease}.smart-quiz .session-intro .intro-card .card .start-btn:hover{background:#4d097e;transform:translateY(-2px)}.smart-quiz .session-intro .intro-card .card .mastery-list .mastery-item{margin-bottom:1.5rem}.smart-quiz .session-intro .intro-card .card .mastery-list .mastery-item .mastery-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:.5rem}.smart-quiz .session-intro .intro-card .card .mastery-list .mastery-item .mastery-header .topic-name{color:#fff;font-weight:600}.smart-quiz .status-bar{align-items:center;background:#1a1a2e;border:1px solid #ffffff1a;border-radius:12px;display:flex;gap:2rem;justify-content:space-between;margin-bottom:2rem;padding:1.5rem}.smart-quiz .status-bar .status-tags{display:flex;flex-wrap:wrap;gap:.75rem}.smart-quiz .status-bar .status-progress{flex:1 1;max-width:300px;min-width:200px}.smart-quiz .question-card{background:#1a1a2e;border:1px solid #ffffff1a;border-radius:16px;margin:clamp(.5rem,1vw,1rem) 0;padding:clamp(1rem,3vw,2rem);position:relative;width:100%}.smart-quiz .question-card .question-stem{word-wrap:break-word;color:#b59797;font-size:clamp(1.1rem,3vw,1.5rem);font-weight:600;-webkit-hyphens:auto;hyphens:auto;line-height:1.4;margin:0 0 clamp(1rem,2vw,1.5rem);max-width:100%;overflow-wrap:break-word;text-shadow:0 1px 2px #00000080}.smart-quiz .question-card .question-media{margin:clamp(1rem,2vw,1.5rem) 0;text-align:center;width:100%}.smart-quiz .question-card .question-media img{border:1px solid #ffffff1a;border-radius:8px;display:block;height:auto;margin:0 auto;max-width:100%}.smart-quiz .question-card .question-media iframe{aspect-ratio:16/9;border:1px solid #ffffff1a;border-radius:8px;height:clamp(200px,40vw,315px);max-width:min(560px,100%);width:100%}.smart-quiz .question-card .question-media video{border:1px solid #ffffff1a;border-radius:8px;height:auto;max-width:min(560px,100%);width:100%}.smart-quiz .question-card .choices-grid{grid-gap:clamp(.5rem,1.5vw,1rem);display:grid;gap:clamp(.5rem,1.5vw,1rem);margin:clamp(1rem,2vw,2rem) 0;width:100%}@media(min-width:768px)and (orientation:landscape){.smart-quiz .question-card .choices-grid{gap:clamp(.75rem,1.5vw,1rem);grid-template-columns:1fr 1fr}}.smart-quiz .question-card .choices-grid .choice-btn{align-items:flex-start;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:12px;box-sizing:border-box;color:#fff!important;cursor:pointer;display:flex;gap:clamp(.5rem,2vw,1rem);min-height:clamp(50px,8vw,60px);padding:clamp(.75rem,2vw,1.5rem);position:relative;text-align:left;transition:all .2s 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