@import "https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;800&display=swap";:root{--bg-color:#f4faff;--card-bg:#fff;--primary:#4ab8f9;--primary-hover:#33a1e1;--text-dark:#2c3e50;--text-light:#5f7a93;--success:#6cd99b;--error:#ff7a7a;--shadow:0 10px 30px #4ab8f91a;--radius:20px}*{box-sizing:border-box}body{background-color:var(--bg-color);color:var(--text-dark);margin:0;padding:0;font-family:Nunito,sans-serif}.app-container{max-width:900px;margin:0 auto;padding:2rem}.header{text-align:center;margin-bottom:3rem}.header h1{color:var(--primary);margin-bottom:.5rem;font-size:3rem}.header p{color:var(--text-light);font-size:1.2rem}.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:2px solid #4ab8f90d;margin-bottom:2rem;padding:2rem}.input-section h2{text-align:center;color:var(--primary);margin-top:0;margin-bottom:1.5rem}.form-group{margin-bottom:1.5rem}.form-group label{color:var(--text-dark);margin-bottom:.5rem;font-weight:600;display:block}.form-group input{border:2px solid #e1eff8;border-radius:12px;outline:none;width:100%;padding:1rem;font-family:inherit;font-size:1.1rem;transition:border-color .3s}.form-group input:focus{border-color:var(--primary)}.generate-btn{background-color:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;width:100%;padding:1rem;font-size:1.2rem;font-weight:800;transition:transform .2s,background-color .3s;box-shadow:0 4px 15px #4ab8f94d}.generate-btn:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-2px)}.generate-btn:disabled{opacity:.7;cursor:not-allowed}.error-banner{color:var(--error);text-align:center;background-color:#fff0f0;border-radius:8px;margin-bottom:1rem;padding:1rem;font-weight:600}.loading-card{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:200px;display:flex}.spinner{border:5px solid #e1eff8;border-top-color:var(--primary);border-radius:50%;width:50px;height:50px;margin-bottom:1rem;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.result-section h3{color:var(--primary);border-bottom:2px solid #f0f7fb;margin-top:0;padding-bottom:.5rem}.content-box h4{color:var(--text-dark);margin-top:1.5rem}.explanation{border-left:4px solid var(--primary);background:#fbfbfb;border-radius:12px;padding:1.5rem;font-size:1.1rem;line-height:1.6}.mcq-item{background:#fbfbfb;border-radius:12px;margin-bottom:1rem;padding:1.5rem}.mcq-item ul{padding:0;list-style-type:none}.mcq-item li{background:#fff;border:1px solid #e1eff8;border-radius:8px;margin-bottom:.5rem;padding:.8rem}.answer{color:var(--success);margin-top:1rem}.tags-container{flex-wrap:wrap;gap:.8rem;margin-bottom:1.5rem;display:flex}.tag-pill{border-radius:20px;padding:.4rem 1rem;font-size:.9rem;font-weight:600;box-shadow:0 2px 5px #0000000d}.tag-pill.subject{color:#0284c7;background-color:#e0f2fe}.tag-pill.difficulty{color:#854d0e;background-color:#fef08a}.tag-pill.blooms{color:#be185d;background-color:#fce7f3}.teacher-notes{border-radius:var(--radius);background-color:#fffbeb;border-left:5px solid #fbbf24;margin-top:2rem;padding:1.5rem}.teacher-notes h4{color:#b45309;margin-top:0;margin-bottom:1rem}.teacher-notes ul{color:var(--text-dark);padding-left:1.5rem}.teacher-notes li{margin-bottom:.5rem}.audit-trail{background-color:#f8fafc;border:1px dashed #cbd5e1}.trail-desc{color:#64748b;margin-bottom:1.5rem;font-size:.95rem}.attempts-list{flex-direction:column;gap:1rem;display:flex}.attempt-card{background:#fff;border-left:6px solid #cbd5e1;border-radius:12px;padding:1rem;box-shadow:0 2px 4px #0000000d}.attempt-card.pass{border-left-color:var(--success)}.attempt-card.fail{border-left-color:var(--error)}.attempt-header{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}.attempt-header h4{margin:0;font-size:1.1rem}.status-badge{font-size:1rem;font-weight:800}.score-bars{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.5rem;margin-bottom:1rem;display:grid}.score-item{text-align:center;background:#f1f5f9;border-radius:6px;padding:.5rem;font-size:.85rem;font-weight:800}.score-item.s-1,.score-item.s-2{color:#991b1b;background-color:#fee2e2}.score-item.s-5{color:#166534;background-color:#dcfce7}.feedback-errors{background:#fef2f2;border-radius:8px;padding:1rem}.feedback-errors p{color:#b91c1c;margin:0 0 .5rem}.feedback-errors ul{color:#991b1b;margin:0;padding-left:1.2rem;font-size:.9rem}.feedback-errors code{background:#fff;border-radius:4px;padding:2px 4px;font-weight:700}.correct-option{color:var(--success);background-color:#ecfdf5;border-radius:4px;padding:2px 4px;font-weight:700}@media (width<=600px){.app-container{padding:1rem}.header h1{font-size:2rem}.header p{font-size:1rem}.card{padding:1.5rem}.input-section h2{font-size:1.4rem}.generate-btn{padding:.8rem;font-size:1.1rem}}