.navbar{background-color:var(--color-white);box-shadow:0 2px 4px #0000001a;position:fixed;top:0;width:100%;z-index:1000;height:70px;display:flex;align-items:center}.navbar-container{display:flex;justify-content:space-between;align-items:center;width:100%}.navbar-logo{font-size:1.5rem;font-weight:700;display:flex;align-items:center;color:var(--color-text)}.navbar-brand-logo{height:60px;width:auto}.navbar-links{display:flex;align-items:center;gap:20px}.nav-link{font-weight:500;color:var(--color-text)}.nav-link:hover{color:var(--color-primary)}.btn-sm{padding:8px 16px;font-size:.9rem}.navbar-toggle{display:none;flex-direction:column;cursor:pointer}.bar{height:3px;width:25px;background-color:var(--color-text);margin:3px 0;transition:.4s}@media (max-width: 768px){.navbar-links{display:none;flex-direction:column;width:100%;position:absolute;top:70px;left:0;background-color:var(--color-white);padding:20px;box-shadow:0 4px 6px #0000001a}.navbar-links.active,.navbar-toggle{display:flex}}.login-dropdown-wrapper{position:relative;display:inline-block}.btn-login-toggle{cursor:pointer}.login-dropdown-menu{position:absolute;top:calc(100% + 10px);right:0;width:260px;background:#fff;border-radius:12px;box-shadow:0 10px 30px #0000001a;padding:15px;display:flex;flex-direction:column;gap:12px;z-index:1001;border:1px solid #eaeaea}.login-dropdown-menu:before{content:"";position:absolute;top:-6px;right:30px;width:12px;height:12px;background:#fff;transform:rotate(45deg);border-left:1px solid #eaeaea;border-top:1px solid #eaeaea}.dropdown-message{font-size:.85rem;color:#666;text-align:center;margin-bottom:5px;padding-bottom:5px;border-bottom:1px solid #f0f0f0}.dropdown-provider-btn{width:100%;padding:10px 14px;background:#fff;border:1px solid #e0e0e0;border-radius:8px;display:flex;align-items:center;gap:12px;cursor:pointer;font-size:.95rem;font-weight:500;color:#444;transition:all .2s 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.2s}.modal-ramo-row.added{background-color:#f0fff0;border-color:#c1e1c1}.ramo-row-name{font-weight:600;color:#444;font-size:1rem;text-align:left;flex:1}.ramo-add-btn{width:32px;height:32px;border-radius:50%;border:2px solid var(--color-primary);background:#fff;color:var(--color-primary);font-size:1.2rem;font-weight:700;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;padding-bottom:2px}.ramo-add-btn:hover{background:var(--color-primary);color:#fff;transform:scale(1.1)}.modal-ramo-btn{padding:12px;background:#f8f9fa;border:1px solid #ddd;border-radius:8px;cursor:pointer;font-weight:600;transition:background .2s}.modal-ramo-btn:hover{background:#e9ecef;border-color:#ccc}.close-modal-btn{margin-top:10px;width:100%}.class-detail-page{padding:40px 1rem}.class-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.back-link{color:#666;font-weight:500}.back-link:hover{color:var(--color-primary)}.subject-badge{padding:4px 12px;border-radius:4px;font-size:.8rem;font-weight:700;text-transform:uppercase;color:#fff}.subject-badge.algebra{background-color:#ff6b6b}.subject-badge.calculo{background-color:#4ecdc4}.subject-badge.fisica{background-color:#ffe66d;color:#333}.detail-title{margin-bottom:30px;font-size:2rem}.detail-layout{display:grid;grid-template-columns:1fr 300px;gap:40px}.video-container{position:relative;padding-bottom:56.25%;height:0;background-color:#000;border-radius:12px;overflow:hidden;margin-bottom:30px}.video-container iframe,.video-container .no-video{position:absolute;top:0;left:0;width:100%;height:100%}.no-video{display:flex;align-items:center;justify-content:center;color:#fff}.pdf-section{background:#fff;padding:30px;border-radius:12px;box-shadow:0 2px 8px #0000000d}.pdf-section 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button{flex:1;border-radius:12px;padding:12px}.ramos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:30px}.ramo-card{background:#fff;border-radius:20px;box-shadow:0 10px 30px #0000000d;overflow:hidden;position:relative;transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;min-height:200px;height:fit-content}.ramo-delete-top{position:absolute;top:15px;right:15px;background:none;border:none;color:#cbd5e1;cursor:pointer;padding:8px;border-radius:50%;transition:all .2s ease;display:flex;align-items:center;justify-content:center;z-index:10}.ramo-delete-top:hover{background-color:#fee;color:#ef4444;transform:scale(1.1)}.ramo-card.expanded{grid-column:1 / -1}.ramo-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px #0000001a}.ramo-color-strip{height:8px;width:100%}.ramo-title{padding:25px 25px 5px;font-size:1.4rem;color:var(--color-text)}.ramo-meta{padding:0 25px 25px;color:#888;font-size:.9rem}.ramo-actions{margin-top:auto;padding:20px 25px;display:flex;gap:10px;background-color:#fcfcfc;border-top:1px solid #f5f5f5}.ramo-actions button{flex:1;border-radius:10px;padding:8px 5px;font-size:.85rem}.btn-danger-outline{background:transparent;border:1px solid #ff4d4d;color:#ff4d4d}.btn-danger-outline:hover{background:#ff4d4d;color:#fff}.no-ramos{text-align:center;grid-column:1 / -1;padding:60px 20px;color:#666;background:#fff;border-radius:20px;box-shadow:0 10px 30px #0000000d}.no-ramos p{margin-bottom:10px}@media (max-width: 600px){.create-form-btns{flex-direction:column}}.ramo-inline-edit{display:flex;flex-direction:column;gap:12px;padding:25px}.inline-edit-input{width:100%;padding:8px 0;border:none;border-bottom:2px solid #f0f0f0;font-family:inherit;transition:border-color .2s;background:transparent}.inline-edit-input:focus{outline:none;border-color:var(--color-primary)}.creation-unification{margin-top:15px;border:1px solid #f1f5f9;padding:20px;border-radius:20px;background:#fdfdfd}.create-ramo-card.unification-active{max-width:900px}@media (max-width: 900px){.creation-unification{grid-template-columns:1fr}}.unification-group{margin-top:25px}.inline-edit-input.title-input{font-size:1.4rem;font-weight:800;color:var(--color-text)}.inline-edit-input.desc-input{font-size:1rem;color:#64748b;resize:none;min-height:40px}.inline-color-selector{display:flex;gap:8px;margin:5px 0}.mini-color-btn{width:22px;height:22px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:transform .2s,border-color .2s}.mini-color-btn.active{border-color:#333;transform:scale(1.2)}.inline-edit-btns{display:flex;gap:10px;margin-top:5px}.ramo-expanded-content{min-height:0;background:#fdfdfd;border-top:1px solid #f0f0f0;padding:25px;display:grid;grid-template-columns:1fr 1fr;gap:30px}@media (max-width: 850px){.ramo-expanded-content{grid-template-columns:1fr}}.ramo-classes-section h4,.ramo-add-classes-section h4{font-size:1.1rem;margin-bottom:15px;color:#444;border-bottom:2px solid #f0f0f0;padding-bottom:5px}.ramo-mini-list{max-height:380px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding-right:10px}.ramo-mini-item{display:flex;align-items:center;padding:12px 15px;background:#fff;border:1px solid #eee;border-radius:12px;transition:background .2s}.mini-info{flex:1;text-align:left;min-width:0}.mini-info h5{font-size:1rem;margin:0 0 2px;padding:0}.mini-description{font-size:.8rem;color:#888;margin:0;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.mini-remove{background:#fee;color:#f55;border:none;width:30px;height:30px;border-radius:50%;cursor:pointer;font-weight:700;display:flex;align-items:center;justify-content:center}.mini-remove:hover{background:#fcc}.class-lookup{margin-bottom:15px}.lookup-input{width:100%;padding:10px 15px;border:2px solid 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#e0e0e0;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;background:#fff;color:#666;transition:all .15s}.metodo-btn--activo{border-color:var(--color-text);background:var(--color-text);color:#fff}.manual-textarea{width:100%;padding:10px 12px;border:1.5px solid #e0e0e0;border-radius:8px;font-size:.9rem;outline:none;font-family:inherit;resize:vertical;transition:border-color .2s;box-sizing:border-box}.manual-textarea:focus{border-color:var(--color-text)}.manual-error{background:#fee2e2;color:#b91c1c;border-radius:10px;padding:12px 16px;font-size:.88rem;font-weight:500}.manual-btn-crear{width:100%;padding:14px;font-size:1rem;border-radius:50px;text-align:center}.manual-exito{text-align:center;padding:60px 20px;display:flex;flex-direction:column;align-items:center;gap:16px}.exito-icon{width:72px;height:72px;border-radius:50%;background:#d1fae5;color:#065f46;font-size:2rem;display:flex;align-items:center;justify-content:center;font-weight:800}.manual-exito h3{font-size:1.4rem;font-weight:800;color:var(--color-text)}.manual-exito p{color:#666}.tab-config{display:flex;flex-direction:column;gap:20px;max-width:500px}.config-card{background:#fff;border-radius:16px;padding:28px;box-shadow:0 2px 12px #0000000d}.config-card h3{font-size:1.1rem;font-weight:700;color:var(--color-text);margin-bottom:20px}.config-field{display:flex;flex-direction:column;gap:8px}.config-field label{font-size:.88rem;font-weight:600;color:#555}.config-input-wrap{display:flex;align-items:center;border:1.5px solid #e0e0e0;border-radius:10px;overflow:hidden;transition:border-color .2s}.config-input-wrap:focus-within{border-color:var(--color-text)}.config-prefix,.config-suffix{padding:0 12px;background:#f8f9fa;color:#888;font-weight:700;font-size:1rem;align-self:stretch;display:flex;align-items:center;border-right:1px solid #e0e0e0}.config-suffix{border-right:none;border-left:1px solid #e0e0e0}.config-input{flex:1;padding:10px 14px;border:none;outline:none;font-size:1rem;font-family:inherit;color:var(--color-text)}.config-hint{font-size:.82rem;color:#aaa;margin-top:4px;line-height:1.5}.config-preview{margin-top:20px;background:#f8f9fa;border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:0}.config-preview-label{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:#999;margin-bottom:10px}.config-preview-fila{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid #ebebeb;font-size:.9rem;color:#555}.config-preview-fila:last-child{border-bottom:none}.config-preview-fila strong{color:var(--color-text);font-weight:700}.config-btn-guardar{padding:14px 36px;border-radius:50px;font-size:1rem;width:100%}.opcional{font-weight:400;color:#aaa;font-size:.82rem}@media (max-width: 900px){.resumen-row,.manual-layout{grid-template-columns:1fr}}@media (max-width: 640px){.admin-dashboard{padding:20px 12px 60px}.admin-titulo{font-size:1.5rem}.admin-tab{padding:10px 14px;font-size:.85rem}.resumen-kpis{grid-template-columns:1fr 1fr}.cal-nav{flex-direction:column;gap:10px}.reservas-filtros{flex-direction:column}.filtro-input,.filtro-select{width:100%}}:root{--color-primary: #ADD8E6;--color-primary-strong: #87c9df;--color-secondary: #FFD700;--color-background: #F8F9FA;--color-text: #212529;--color-white: #FFFFFF;--font-family: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif}.highlight{color:var(--color-primary-strong);position:relative;z-index:1}.highlight:after{content:"";position:absolute;bottom:2px;left:0;width:100%;height:8px;background-color:var(--color-secondary);opacity:.5;z-index:-1;border-radius:4px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text);line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{line-height:1.1;font-weight:700}button{cursor:pointer;border:none;font-family:inherit}a{text-decoration:none;color:inherit;transition:color .3s}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{display:inline-block;padding:10px 20px;border-radius:8px;font-weight:600;transition:all .2s}.btn-primary{background-color:var(--color-primary);color:var(--color-text)}.btn-primary:hover{color:#fff}.btn-secondary{background-color:var(--color-secondary);color:var(--color-text)}.btn-secondary:hover{filter:brightness(.9)}.auth-container{min-height:calc(100vh - 70px);display:flex;align-items:center;justify-content:center;padding:20px;background-color:#f0f2f5}.auth-card{background:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 12px #0000001a;width:100%;max-width:500px}.auth-title{text-align:center;margin-bottom:20px;color:var(--color-text)}.auth-error{background-color:#fee;color:#c00;padding:10px;border-radius:4px;margin-bottom:20px;font-size:.9rem}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500}.form-group input{width:100%;padding:10px;border:1px solid #ddd;border-radius:6px;font-size:1rem}.form-group input:focus{outline:none;border-color:var(--color-primary)}.auth-submit{width:100%;padding:12px;font-size:1rem;margin-top:10px}.auth-footer{margin-top:20px;text-align:center;font-size:.9rem}.auth-footer a{color:var(--color-primary-strong);font-weight:600}