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.2s}.quiz-reset-btn:hover:not(.disabled){background:var(--hover-bg)}.quiz-reset-btn.disabled{cursor:not-allowed;opacity:.65;background:var(--bg)}.quiz-enunciado{margin-bottom:1rem;font-size:1.05rem;line-height:1.6;color:var(--text-main)}.quiz-options{display:flex;flex-direction:column;gap:10px}.quiz-option{padding:12px 14px;border:2px solid var(--border);border-radius:10px;background:var(--bg);cursor:pointer;transition:all .2s;display:flex;align-items:flex-start;gap:10px}.quiz-option.cursor-default{cursor:default}.quiz-option.correct{background:var(--success-bg);border-color:var(--success-text)}.quiz-option.incorrect{background:var(--error-bg);border-color:var(--error-text)}.option-letter{font-weight:800;color:var(--text-muted);min-width:28px}.option-text{flex:1;color:var(--text-main);line-height:1.5}.quiz-explanation{margin-top:1.5rem;padding:1rem;background:var(--primary-light);border-radius:10px;border-left:4px solid 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var(--border)}.breakdown-label{color:var(--primary);font-weight:700}.breakdown-list{margin-top:12px;display:flex;flex-direction:column;gap:10px}.breakdown-item{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;padding:10px 12px}.breakdown-letter{font-weight:900;color:var(--text-main);margin-bottom:4px}.breakdown-text{color:var(--text-secondary);line-height:1.6}.save-container{display:flex;gap:5px;align-items:center;margin-left:auto;flex-wrap:wrap}.save-input{width:200px;padding:8px}.history-panel{margin-top:1rem;border:2px solid var(--border);padding:1rem;border-radius:8px;background:var(--bg)}.history-header{margin-bottom:1rem;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--heading-color);text-transform:uppercase;font-size:.95rem}.history-card{cursor:pointer;border-color:var(--border);transition:transform .1s}.history-title{color:var(--heading-color)}.history-date{font-size:.8rem;margin-top:4px}.config-content{padding:1.25rem}.config-actions{margin-top:0;padding:0 1rem 1rem}@media(max-width:640px){.header h1{font-size:1.75rem}.actions{flex-direction:column;align-items:stretch}.btn{width:100%}.grid,.summary{grid-template-columns:1fr}.save-container{width:100%;margin-left:0}.save-input{width:100%}.input,.select,.btn{min-height:48px}}.navbar{background:var(--header-bg);border-bottom:1px solid var(--border);padding:.75rem 0;position:sticky;top:0;z-index:100}.nav-container{max-width:1000px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 1.5rem}.nav-logo{font-weight:800;font-size:1.25rem;color:var(--primary);text-decoration:none}.nav-links{display:flex;gap:1.5rem}.nav-item{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--text-secondary);font-weight:500;font-size:.95rem;transition:color 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1.5rem;font-size:1.15rem;color:var(--text-main);line-height:1.4;flex:1}.card-dash-footer{margin-top:auto}.admin-table{width:100%;border-collapse:collapse;margin-top:1rem}.admin-table th,.admin-table td{text-align:left;padding:1rem;border-bottom:1px solid var(--border)}.admin-table th{background:var(--hover-bg);font-size:.85rem;text-transform:uppercase;color:var(--text-secondary);font-weight:700}.actions-cell{display:flex;gap:.5rem}.error-btn{color:var(--error-text);border-color:var(--error-text)}.error-btn:hover{background-color:var(--error-bg)}.essay-container{padding:15px;background-color:var(--bg);border-radius:var(--radius);border:1px solid var(--border)}.essay-text{font-size:.95rem;line-height:1.6;margin:5px 0 15px;color:var(--text-secondary);text-align:justify}.essay-textarea{width:100%;min-height:250px;padding:15px;border:1px solid var(--border);border-radius:8px;font-family:Inter,sans-serif;font-size:.95rem;line-height:1.6;resize:vertical;margin-bottom:15px;background-color:var(--input-bg);color:var(--text-main)}.essay-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-light)}.essay-button{background-color:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:6px;font-weight:700;cursor:pointer;transition:all .2s;display:inline-block;width:100%}.essay-button:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-2px)}.essay-button:disabled{background-color:var(--bg);color:var(--text-muted);cursor:not-allowed;transform:none}.correction-box{background-color:var(--card-bg);border:1px solid var(--border);border-left:5px solid var(--success-text);border-radius:6px;padding:20px;margin-top:20px;box-shadow:var(--shadow-sm)}.correction-error{background-color:var(--error-bg);color:var(--error-text);padding:15px;border-radius:6px;margin-top:15px;border:1px solid var(--error-text);font-weight:500}.tutor-widget-container{position:fixed;bottom:25px;right:25px;z-index:9999;display:flex;flex-direction:column;align-items:flex-end}.tutor-widget-button{background-color:var(--primary);color:#fff;border:none;border-radius:50%;width:65px;height:65px;font-size:30px;cursor:pointer;box-shadow:0 4px 12px #0003;transition:transform .3s cubic-bezier(.175,.885,.32,1.275),background-color .2s;display:flex;align-items:center;justify-content:center}.tutor-widget-button:hover{transform:scale(1.1);background-color:var(--primary-hover)}.tutor-widget-window{width:360px;height:520px;background-color:var(--card-bg);border:1px solid var(--border);border-radius:12px;box-shadow:0 15px 35px #0003;display:flex;flex-direction:column;overflow:hidden;margin-bottom:20px;animation:slideUp .3s ease-out}.tutor-widget-header{background-color:var(--primary);color:#fff;padding:15px;font-weight:700;display:flex;justify-content:space-between;align-items:center;font-size:1rem}.tutor-widget-close{background:none;border:none;color:var(--hover-bg);font-size:1.2rem;cursor:pointer;transition:color .2s}.tutor-widget-close:hover{color:#fff}.chat-container{flex:1;overflow-y:auto;padding:15px;background-color:var(--bg);display:flex;flex-direction:column;gap:12px}.chat-msg{padding:10px 15px;border-radius:12px;max-width:85%;font-size:.9rem;line-height:1.5;box-shadow:var(--shadow-sm)}.chat-msg.user{background-color:var(--primary);color:#fff;align-self:flex-end;border-bottom-right-radius:0}.chat-msg.assistant{background-color:var(--card-bg);border:1px solid var(--border);color:var(--text-main);align-self:flex-start;border-bottom-left-radius:0}.chat-input-area{display:flex;gap:10px;padding:15px;background-color:var(--card-bg);border-top:1px solid var(--border)}.chat-input{flex:1;padding:10px 12px;border:1px solid var(--border);background-color:var(--input-bg);color:var(--text-main);border-radius:6px;font-family:inherit;font-size:.9rem}.chat-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-light)}.chat-send-btn{background-color:var(--primary);color:#fff;border:none;padding:0 15px;border-radius:6px;cursor:pointer;font-weight:700;transition:background .2s}.chat-send-btn:hover:not(:disabled){background-color:var(--primary-hover)}.chat-send-btn:disabled{background-color:var(--bg);color:var(--text-muted);cursor:not-allowed}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.markdown-format strong,.markdown-format b{font-weight:800!important;color:var(--text-main)!important}.markdown-format em,.markdown-format i{font-style:italic!important}.markdown-format ul{list-style-type:disc!important;padding-left:1.5rem!important;margin-bottom:1rem!important}.markdown-format ol{list-style-type:decimal!important;padding-left:1.5rem!important;margin-bottom:1rem!important}.markdown-format p{margin-bottom:.75rem!important}.markdown-format table,.chat-msg table,.essay-text table{width:100%;border-collapse:collapse;margin:1.25rem 0;font-size:.95rem;display:block;overflow-x:auto;white-space:nowrap;background-color:var(--card-bg);border-radius:8px;border:1px solid var(--border)}.markdown-format th,.chat-msg th,.essay-text th,.markdown-format td,.chat-msg td,.essay-text td{padding:12px 16px;border:1px solid var(--border);text-align:left;color:var(--text-main)}.markdown-format th,.chat-msg th,.essay-text th{background-color:var(--hover-bg);color:var(--heading-color);font-weight:700;text-transform:uppercase;font-size:.85rem;letter-spacing:.05em}.markdown-format tr:nth-child(2n),.chat-msg tr:nth-child(2n),.essay-text tr:nth-child(2n){background-color:#00000005}html.dark .markdown-format tr:nth-child(2n),html.dark .chat-msg tr:nth-child(2n),html.dark .essay-text tr:nth-child(2n){background-color:#ffffff05}.hover-word{border-bottom:1px dashed transparent}.hover-word:hover{background-color:var(--primary-light, #e0f2fe);color:var(--primary, #0284c7);border-bottom:1px dashed var(--primary, #0284c7)}@media(max-width:768px){.mobile-menu-btn{display:block!important}.nav-links{display:none;flex-direction:column;position:absolute;top:60px;left:0;width:100%;background-color:var(--card-bg);border-bottom:1px solid var(--border);padding:10px 0;box-shadow:0 4px 6px #0000001a;z-index:1000}.nav-links.mobile-open{display:flex}.nav-links .nav-item{padding:15px 20px;width:100%;justify-content:flex-start}.mobile-only-text{display:inline!important;margin-left:8px}}