/* ========================================
   TOPICS PANEL STYLES
   ======================================== */

.topics-panel {
    background: white;
    border-radius: 15px;
    margin: 20px 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

/* === PANEL HEADER === */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    cursor: pointer;
    user-select: none;
}

.panel-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.panel-header i {
    font-size: 1.2rem;
}

.panel-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.panel-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.panel-toggle i {
    transition: transform 0.3s ease;
}

.topics-panel.collapsed .panel-toggle i {
    transform: rotate(-90deg);
}

/* === PANEL CONTENT === */
.panel-content {
    max-height: 600px;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 20px;
}

.topics-panel.collapsed .panel-content {
    max-height: 0;
    padding: 0 !important;
}

/* === SEARCH BOX === */
.search-box {
    position: relative;
    margin-bottom: 15px;
}

.search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 0.9rem;
}

.search-box input {
    width: 100%;
    padding: 10px 12px 10px 38px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    background: #f8fafc;
}

.search-box input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
}

/* === TOPICS LIST === */
.topics-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 5px;
}

.topics-list::-webkit-scrollbar {
    width: 6px;
}

.topics-list::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 3px;
}

.topics-list::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

/* === TOPIC ITEMS === */
.topic-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    background: #f8fafc;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    width: 100%;
}

.topic-item:hover {
    background: #e0e7ff;
    transform: translateX(5px);
}

.topic-item i {
    color: #667eea;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.topic-item span {
    color: #1e293b;
    font-size: 0.95rem;
    font-weight: 500;
}

.topic-item.hidden {
    display: none;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .panel-header {
        padding: 12px 15px;
    }

    .panel-header h3 {
        font-size: 1rem;
    }

    .panel-content {
        padding: 15px;
        max-height: 400px;
    }

    .topics-list {
        max-height: 300px;
    }

    .topic-item {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .search-box input {
        font-size: 0.85rem;
        padding: 8px 10px 8px 35px;
    }
}

@media (max-width: 374px) {
    .panel-header h3 {
        font-size: 0.95rem;
    }

    .topic-item {
        padding: 9px 10px;
    }

    .topic-item span {
        font-size: 0.85rem;
    }
}

/* ========================================
   MODAL FIXES PARA NIVELES A1-C1
   Responsive y legible en móvil
   ======================================== */

/* === MODAL GENERAL === */
.modal {
    z-index: 9999 !important;
}

.modal-content {
    max-width: 95vw !important;
    max-height: 90vh !important;
}

.modal-body {
    overflow-y: auto !important;
    max-height: calc(90vh - 120px) !important;
}

/* === RESPONSIVE PARA MÓVIL === */
@media (max-width: 768px) {

    /* Modal adaptado a móvil */
    .modal-content {
        width: calc(100vw - 20px) !important;
        max-width: 100% !important;
        margin: 10px !important;
        max-height: 92vh !important;
        border-radius: 12px !important;
    }

    /* Header del modal */
    .modal-header {
        padding: 15px !important;
        border-radius: 12px 12px 0 0 !important;
        flex-wrap: wrap !important;
    }

    .modal-header h2,
    #modalTitle {
        font-size: 1.2rem !important;
        line-height: 1.3 !important;
        margin: 0 !important;
        flex: 1 1 calc(100% - 50px) !important;
        word-wrap: break-word !important;
        text-align: center !important;
    }

    .close-modal,
    #closeModalBtn {
        width: 36px !important;
        height: 36px !important;
        font-size: 1.2rem !important;
        flex-shrink: 0 !important;
    }

    /* Body del modal */
    .modal-body,
    #modalContent {
        padding: 15px !important;
        max-height: calc(92vh - 100px) !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
    }

    /* === CONTENIDO DEL MODAL === */

    /* Títulos dentro del modal */
    .modal-body h4,
    #modalContent h4 {
        font-size: 1.1rem !important;
        margin: 15px 0 10px 0 !important;
        line-height: 1.3 !important;
        color: #1e293b !important;
    }

    .modal-body h5,
    #modalContent h5 {
        font-size: 1rem !important;
        margin: 12px 0 8px 0 !important;
        line-height: 1.3 !important;
        color: #334155 !important;
    }

    /* Párrafos */
    .modal-body p,
    #modalContent p {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
        margin: 8px 0 !important;
    }

    /* Listas */
    .modal-body ul,
    .modal-body ol,
    #modalContent ul,
    #modalContent ol {
        padding-left: 20px !important;
        margin: 10px 0 !important;
    }

    .modal-body li,
    #modalContent li {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
        margin: 6px 0 !important;
    }

    /* === TABLAS RESPONSIVE === */
    .comparison-table {
        width: 100% !important;
        font-size: 0.75rem !important;
        display: block !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        margin: 15px 0 !important;
        border-radius: 8px !important;
    }

    .comparison-table table {
        min-width: 100% !important;
        border-collapse: collapse !important;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 8px 6px !important;
        font-size: 0.75rem !important;
        border: 1px solid #e5e7eb !important;
        word-wrap: break-word !important;
        vertical-align: top !important;
    }

    .comparison-table th {
        background: #f1f5f9 !important;
        font-weight: 600 !important;
        color: #1e293b !important;
        position: sticky !important;
        top: 0 !important;
        z-index: 10 !important;
    }

    .comparison-table td {
        background: white !important;
    }

    /* Hacer primera columna sticky en tablas grandes */
    .comparison-table th:first-child,
    .comparison-table td:first-child {
        position: sticky !important;
        left: 0 !important;
        z-index: 5 !important;
        background: #f8fafc !important;
    }

    /* === TIP BOX Y EXAMPLE BOX === */
    .tip-box,
    .example-box {
        padding: 12px !important;
        margin: 15px 0 !important;
        border-radius: 10px !important;
        font-size: 0.85rem !important;
        line-height: 1.5 !important;
    }

    .tip-box {
        background: #dbeafe !important;
        border-left: 4px solid #3b82f6 !important;
    }

    .example-box {
        background: #f0fdf4 !important;
        border-left: 4px solid #10b981 !important;
    }

    .tip-box strong,
    .example-box strong {
        display: block !important;
        margin-bottom: 6px !important;
        font-size: 0.9rem !important;
    }

    .tip-box i,
    .example-box i {
        margin-right: 6px !important;
        font-size: 1rem !important;
    }

    .tip-box ul,
    .example-box ul {
        margin-top: 8px !important;
        margin-bottom: 0 !important;
    }

    /* === ÉNFASIS EN TEXTO === */
    .modal-body strong,
    .modal-body em,
    #modalContent strong,
    #modalContent em {
        color: #667eea !important;
    }

    /* === SCROLL SUAVE === */
    .modal-body,
    #modalContent {
        scroll-behavior: smooth !important;
    }

    /* === FIX PARA TABLAS MUY ANCHAS === */
    .comparison-table::-webkit-scrollbar {
        height: 6px !important;
    }

    .comparison-table::-webkit-scrollbar-track {
        background: #f1f5f9 !important;
        border-radius: 3px !important;
    }

    .comparison-table::-webkit-scrollbar-thumb {
        background: #cbd5e1 !important;
        border-radius: 3px !important;
    }

    /* === SPACING INTERNO === */
    .modal-body>*:first-child,
    #modalContent>*:first-child {
        margin-top: 0 !important;
    }

    .modal-body>*:last-child,
    #modalContent>*:last-child {
        margin-bottom: 0 !important;
    }
}

/* === PANTALLAS MUY PEQUEÑAS === */
@media (max-width: 374px) {

    .modal-header h2,
    #modalTitle {
        font-size: 1.1rem !important;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 6px 4px !important;
        font-size: 0.7rem !important;
    }

    .modal-body p,
    .modal-body li,
    #modalContent p,
    #modalContent li {
        font-size: 0.85rem !important;
    }
}

/* === LANDSCAPE MODE === */
@media (max-width: 768px) and (orientation: landscape) {
    .modal-content {
        max-height: 95vh !important;
    }

    .modal-body,
    #modalContent {
        max-height: calc(95vh - 90px) !important;
    }
}