/* =====================================
   STUDENT SHARING - MINIMAL CLAUDE STYLE
   ===================================== */

.share-btns-hidden { display: none !important; }

/* Modal base - Mucho más grande para aprovechar el espacio */
.student-share-modal .modal-content { 
    max-width: 95vw; 
    width: 1400px;
    max-height: 92vh;
}

/* Títulos del modal más grandes */
.student-share-modal .modal-title {
    font-size: 22px;
    font-weight: 600;
}

.student-share-modal .modal-title i {
    font-size: 20px;
}

.student-share-modal .section {
    margin-bottom: 16px;
    padding: 18px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-tertiary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.student-share-modal h3 {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Lista de ofertas - Más alta para aprovechar espacio */
.student-offers-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 600px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.student-offers-list::-webkit-scrollbar { width: 6px; }
.student-offers-list::-webkit-scrollbar-track { background: transparent; }
.student-offers-list::-webkit-scrollbar-thumb { background: rgba(115,115,115,0.3); border-radius: 10px; }

.student-offers-list li { list-style: none; }

/* Estado vacío */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 36px 20px;
    color: var(--text-secondary);
    text-align: center;
}

.empty-state p {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.empty-state span {
    font-size: 12px;
    opacity: 0.7;
}

/* Tarjetas de oferta mejoradas */
.offer-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    transition: all 0.2s ease;
    cursor: pointer;
}

.offer-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.pending-offer-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.pending-offer-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary);
    transform: translateX(4px);
}

.pending-offer-item.active {
    background: var(--claude-accent-light);
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(47,164,255,0.2);
}

.pending-offer-item .offer-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.pending-offer-item .offer-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pending-offer-item .offer-info strong {
    font-size: 16px;
    color: var(--text-primary);
}

.pending-offer-item .offer-info .meta {
    font-size: 14px;
    color: var(--text-secondary);
}

.pending-offer-item .actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.offer-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 10px;
}

.offer-sender {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.sender-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.sender-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.offer-title {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Badges de estado */
.offer-status-badge {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 10px;
    white-space: nowrap;
}

.offer-status-badge.pending { background: rgba(217,119,6,0.15); color: #B45309; }
.offer-status-badge.accepted { background: rgba(5,150,105,0.15); color: #059669; }
.offer-status-badge.partial { background: rgba(13,148,136,0.15); color: #0D9488; }
.offer-status-badge.rejected { background: rgba(220,38,38,0.15); color: #DC2626; }

[data-theme="dark"] .offer-status-badge.pending { color: #FBBF24; }
[data-theme="dark"] .offer-status-badge.accepted { color: #34D399; }
[data-theme="dark"] .offer-status-badge.partial { color: #2DD4BF; }
[data-theme="dark"] .offer-status-badge.rejected { color: #F87171; }

.offer-body { margin-bottom: 12px; }

.offer-stat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--claude-accent-light, rgba(217,119,6,0.1));
    border-radius: 8px;
    font-size: 12px;
    color: var(--text-primary);
}

.offer-stat i {
    color: var(--primary);
    font-size: 13px;
}

.offer-actions {
    display: flex;
    gap: 6px;
}

.pending-offer-item.active .offer-card {
    border-color: var(--primary);
    background: var(--claude-accent-light);
}

/* Tabla de vista previa mejorada */
.students-preview-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    font-size: 15px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.students-preview-table th {
    background: var(--bg-tertiary);
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

.students-preview-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.students-preview-table tbody tr:last-child td { border-bottom: none; }
.students-preview-table tbody tr:hover td { 
    background: var(--bg-tertiary);
    transition: background 0.15s ease;
}

/* Grade badge mejorado */
.grade-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary) 0%, #1e88e5 100%);
    color: white;
    padding: 5px 12px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(47,164,255,0.3);
}

/* Selectores */
.friend-select,
.grade-select,
.share-grade-multiselect {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 15px;
}

.inline-badge {
    background: var(--info);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
}

/* Status text */
.offer-status {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 600;
}

.offer-status.pending { color: var(--warning); }
.offer-status.accepted { color: var(--success); }
.offer-status.partial { color: #0D9488; }
.offer-status.rejected { color: var(--danger); }

/* Utilidades */
.flex { display: flex; }
.gap-8 { gap: 8px; }
.wrap { flex-wrap: wrap; }
.mt-10 { margin-top: 10px; }
.hidden { display: none; }

/* Grid de checkboxes */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 6px;
}

.checkbox-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-secondary);
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.15s;
}

.checkbox-pill:hover { background: var(--bg-tertiary); }
.checkbox-pill input { margin: 0; }

/* Amigos */
.friend-multi-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.friend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: var(--bg-secondary);
    cursor: pointer;
    font-size: 12px;
    transition: background-color 0.15s;
}

.friend-item:hover { background: var(--bg-tertiary); }
.friend-item input { margin: 0; }

.avatar-small {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-tertiary) center/cover no-repeat;
    flex-shrink: 0;
}

/* Header de sección mejorado */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.section-header h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.section-header h3 i {
    color: var(--primary);
    font-size: 17px;
}

.offers-count-badge {
    background: linear-gradient(135deg, var(--primary) 0%, #1e88e5 100%);
    color: white;
    font-size: 14px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 12px;
    min-width: 32px;
    text-align: center;
    box-shadow: 0 2px 6px rgba(47,164,255,0.3);
}

.offers-list-section,
.preview-section {
    border: 1px solid var(--border-color) !important;
}

.preview-section { background: var(--bg-secondary) !important; }

/* Panel de controles mejorado */
.import-controls-panel {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.control-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.control-group {
    flex: 1;
    min-width: 180px;
}

.control-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.control-label i {
    color: var(--primary);
    font-size: 10px;
}

.section-toggle-container {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.checkbox-pill.section-toggle {
    background: var(--claude-accent-light);
}

.section-hint {
    font-size: 13px;
    color: var(--text-secondary);
    padding-left: 4px;
}

.section-summary-banner {
    background: var(--claude-accent-light);
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.5;
}

.action-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.action-buttons .btn {
    flex: 1;
    min-width: 160px;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
    transition: all 0.2s ease;
}

.action-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.action-buttons .btn i {
    margin-right: 8px;
}

/* Contenido de vista previa */
.preview-content { animation: fadeIn 0.2s ease; }

.preview-info-card {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: rgba(37,99,235,0.08);
    border-radius: 8px;
    padding: 12px 14px;
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.5;
}

.preview-info-card i {
    color: var(--info);
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 1px;
}

.preview-info-card strong { color: var(--text-primary); }

.grade-bulk-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.grade-bulk-item .grade-name { font-weight: 600; }
.grade-bulk-item .grade-count { opacity: 0.7; font-size: 12px; }

.grade-filter-bar .filter-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    opacity: 0.8;
}

.grade-filter-chip i { font-size: 11px; opacity: 0.8; }

/* Centrar modal */
.student-share-modal {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.student-share-modal .modal-content { margin: 0 auto; }

/* Mejorar el diseño del modal body para mejor aprovechamiento */
.student-share-modal .modal-body {
    max-height: 75vh;
    overflow: auto;
    padding: 20px;
}

/* Diseño en dos columnas para aprovechar espacio */
.student-share-modal .modal-body-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 20px;
    height: 100%;
}

.student-share-modal .offers-column {
    display: flex;
    flex-direction: column;
}

.student-share-modal .preview-column {
    display: flex;
    flex-direction: column;
    min-height: 500px;
}

.student-share-modal .empty-preview-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 400px;
    color: var(--text-secondary);
    text-align: center;
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px;
}

/* ========== RESPONSIVE: TABLETS ========== */
@media (max-width: 1200px) {
    .student-share-modal .modal-body-grid {
        grid-template-columns: 1fr;
    }
    .student-share-modal .modal-content {
        width: 96vw;
    }
    .student-share-modal .preview-column {
        min-height: 300px;
    }
    .student-share-modal .empty-preview-state {
        height: 200px;
    }
}

/* ========== RESPONSIVE: MOBILE ========== */
@media (max-width: 768px) {
    .student-share-modal {
        padding: 0;
        align-items: flex-end;
    }
    .student-share-modal .modal-content {
        width: 100vw;
        max-width: 100vw;
        max-height: 100vh;
        border-radius: 16px 16px 0 0;
        margin: 0;
    }
    .student-share-modal .modal-header {
        position: sticky;
        top: 0;
        z-index: 10;
        background: var(--bg-secondary);
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
    }
    .student-share-modal .modal-title {
        font-size: 17px;
    }
    .student-share-modal .modal-title i {
        font-size: 16px;
    }
    .student-share-modal .modal-body {
        max-height: calc(100vh - 60px);
        padding: 12px;
        -webkit-overflow-scrolling: touch;
    }
    .student-share-modal .modal-body-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .student-share-modal .section {
        padding: 14px;
        margin-bottom: 12px;
    }
    .student-share-modal h3,
    .section-header h3 {
        font-size: 15px;
    }
    .section-header h3 i {
        font-size: 14px;
    }
    .section-header {
        margin-bottom: 10px;
        padding-bottom: 8px;
    }
    .student-share-modal .empty-preview-state {
        height: 160px;
        padding: 24px;
    }
    .student-share-modal .empty-preview-state i {
        font-size: 32px !important;
        margin-bottom: 10px !important;
    }
    .student-share-modal .empty-preview-state p {
        font-size: 14px !important;
    }
    .student-share-modal .empty-preview-state span {
        font-size: 12px !important;
    }
    .student-share-modal .preview-column {
        min-height: auto;
    }

    /* Ofertas pendientes en móvil */
    .student-offers-list {
        max-height: none;
        gap: 10px;
    }
    .pending-offer-item {
        padding: 12px;
        flex-wrap: wrap;
    }
    .pending-offer-item .offer-left {
        gap: 10px;
        min-width: 0;
    }
    .pending-offer-item .offer-info strong {
        font-size: 14px;
        word-break: break-word;
    }
    .pending-offer-item .offer-info .meta {
        font-size: 12px;
    }
    .pending-offer-item .actions {
        width: 100%;
        justify-content: flex-end;
        gap: 8px;
        margin-top: 6px;
    }
    .pending-offer-item .actions .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    .avatar-small {
        width: 36px;
        height: 36px;
    }

    /* Controles de importación en móvil */
    .import-controls-panel {
        padding: 14px;
        gap: 12px;
    }
    .control-row {
        flex-direction: column;
        gap: 8px;
    }
    .control-group {
        min-width: 100%;
    }
    .control-label {
        font-size: 12px;
    }
    .grade-select, .friend-select, .share-grade-multiselect {
        padding: 12px;
        font-size: 15px;
    }
    .action-buttons {
        flex-direction: column;
        gap: 8px;
    }
    .action-buttons .btn {
        min-width: 100%;
        padding: 14px 16px;
        font-size: 15px;
        text-align: center;
        justify-content: center;
    }
    .checkbox-pill {
        font-size: 13px;
        padding: 10px 12px;
    }
    .section-hint {
        font-size: 12px;
    }
    .section-summary-banner {
        font-size: 13px;
        padding: 10px 12px;
    }

    /* Info card en móvil */
    .preview-info-card {
        font-size: 12px;
        padding: 10px;
        line-height: 1.4;
    }
    .preview-info-card i {
        display: none;
    }

    /* Filtros por grado en móvil */
    .grade-filter-bar {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
    }
    .grade-filter-chip {
        white-space: nowrap;
        flex-shrink: 0;
    }
    .grade-bulk-controls {
        flex-wrap: wrap;
    }

    /* TABLA → CARDS EN MÓVIL */
    .students-preview-table {
        border: none;
        box-shadow: none;
    }
    .students-preview-table thead {
        display: none;
    }
    .students-preview-table tbody {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    .students-preview-table tbody tr {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px;
        padding: 12px;
        border: 1px solid var(--border-color);
        border-radius: 10px;
        background: var(--bg-secondary);
        position: relative;
    }
    .students-preview-table tbody tr:hover {
        background: var(--bg-tertiary);
    }
    .students-preview-table tbody tr[data-duplicate] {
        border-color: var(--danger);
        background: rgba(220,38,38,0.05);
    }
    .students-preview-table td {
        border: none;
        padding: 0;
        background: transparent !important;
    }
    /* Checkbox */
    .students-preview-table td:nth-child(1) {
        order: 1;
        width: 28px;
        flex-shrink: 0;
    }
    /* Nombre estudiante */
    .students-preview-table td:nth-child(2) {
        order: 2;
        flex: 1;
        min-width: 0;
        font-weight: 600;
        font-size: 14px;
        color: var(--text-primary);
        word-break: break-word;
    }
    /* Cédula */
    .students-preview-table td:nth-child(3) {
        order: 4;
        font-size: 12px;
        color: var(--text-secondary);
    }
    .students-preview-table td:nth-child(3)::before {
        content: 'Céd: ';
        font-weight: 600;
        color: var(--text-secondary);
        opacity: 0.7;
    }
    /* Grado */
    .students-preview-table td:nth-child(4) {
        order: 3;
        margin-left: auto;
    }
    /* Sección */
    .students-preview-table td:nth-child(5) {
        order: 5;
        margin-left: auto;
    }
    /* Fila de grado + sección + cédula debajo */
    .students-preview-table td:nth-child(3),
    .students-preview-table td:nth-child(4),
    .students-preview-table td:nth-child(5) {
        font-size: 12px;
    }

    /* Grade suggestion box */
    .grade-suggestion-box {
        font-size: 12px;
        padding: 8px 10px;
    }
    .grade-suggestion-box select {
        max-width: 100%;
    }

    /* Offers count badge */
    .offers-count-badge {
        font-size: 12px;
        padding: 4px 10px;
    }

    /* Offer message */
    .offer-message-box {
        font-size: 12px;
        padding: 8px 10px;
    }

    /* Make hover effects touch-friendly */
    .pending-offer-item:hover {
        transform: none;
    }
    .offer-card:hover {
        transform: none;
    }
    .action-buttons .btn:hover {
        transform: none;
    }
}

/* Sugerencia de grado */
.grade-suggestion-box {
    background: rgba(217,119,6,0.1);
    border: 1px solid var(--warning);
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 13px;
    margin-top: 6px;
    line-height: 1.5;
    animation: fadeIn 0.2s ease;
}

.grade-suggestion-box button { margin: 4px 4px 0 0; }
.grade-suggestion-box strong { color: var(--warning); }

/* Animaciones simples */
.animate-scale-in { animation: scaleIn 0.2s ease; }
.animate-fade-in { animation: fadeIn 0.2s ease; }

@keyframes scaleIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Badge de ofertas pendientes */
.pending-offers-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger);
    color: white;
    font-size: 11px;
    line-height: 1;
    padding: 4px 6px;
    border-radius: 12px;
    font-weight: 600;
}

/* Duplicados */
tr[data-duplicate] { background: rgba(220,38,38,0.08); }
tr[data-duplicate] td { position: relative; }

.dup-badge {
    display: inline-block;
    background: var(--danger);
    color: white;
    font-size: 11px;
    padding: 3px 7px;
    border-radius: 8px;
    margin-left: 5px;
    vertical-align: middle;
}

.preview-hint {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* Mensaje de oferta */
.offer-message-box {
    background: var(--claude-accent-light);
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.offer-message-box i {
    color: var(--primary);
    margin-top: 1px;
}

/* Btn outline */
.btn-outline {
    background: transparent !important;
    border: 1px solid currentColor;
}

.btn-outline:hover {
    background: currentColor !important;
    color: white !important;
}

/* Overlay de espera */
#cleanupWaitingOverlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

[data-theme="dark"] #cleanupWaitingOverlay {
    background: rgba(0,0,0,0.7);
}

#cleanupWaitingOverlay.show {
    opacity: 1;
    pointer-events: auto;
}

#cleanupWaitingOverlay .cleanup-wait-box {
    background: var(--bg-secondary);
    padding: 24px;
    border-radius: 12px;
    max-width: 320px;
    width: 100%;
    text-align: center;
    animation: scaleIn 0.2s ease;
}

#cleanupWaitingOverlay .cleanup-wait-box .spinner {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 12px;
}

#cleanupWaitingOverlay .cleanup-wait-box .msg {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
}

#cleanupWaitingOverlay .cleanup-wait-box .hint {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Mini tabla */
.mini-table { font-size: 11px; }
.mini-table td { padding: 3px 5px; }

/* Sección badges */
.section-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
}
.section-badge--active {
    background: var(--primary);
    color: #fff;
}
.section-badge--none {
    background: var(--border-color);
    color: var(--text-secondary);
}

/* Checkbox de importación mejorado */
.import-chk-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 4px;
}
.import-chk-label input[type='checkbox'] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
    cursor: pointer;
}

@media (max-width: 768px) {
    .section-badge {
        font-size: 11px;
        padding: 3px 8px;
    }
    .import-chk-label input[type='checkbox'] {
        width: 22px;
        height: 22px;
    }
}

/* Texto de ayuda en ofertas */
.offers-help-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0 0 12px;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .offers-help-text {
        font-size: 13px;
        margin-bottom: 10px;
    }
}

/* ========== SHARE MODAL FULLSCREEN ========== */
.share-modal-fullscreen {
    padding: 0 !important;
}
.share-modal-fullscreen .modal-content {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100vh !important;
    max-height: 100vh !important;
    border-radius: 0 !important;
    margin: 0 !important;
}
.share-modal-fullscreen .modal-body {
    max-height: calc(100vh - 62px) !important;
}

/* ========== SHARE MODAL STEP DESIGN ========== */
.share-step-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 14px;
}
.share-step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary, #06b6d4);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}
.share-step-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}
.share-step-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* ========== SHARE SECTION FILTER CHIPS ========== */
.share-sections-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: flex-start;
}
.share-sections-filter .section-filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    font-size: 12px;
    border-radius: 10px;
    width: auto;
    max-width: 100%;
    flex: 0 0 auto;
    background: var(--bg-secondary, #1a1f2e);
    border: 1px solid var(--border-color, rgba(255,255,255,0.1));
    cursor: pointer;
    transition: all 0.15s;
    color: var(--text-primary, #e2e8f0);
    user-select: none;
}
.share-sections-filter .section-filter-chip:hover {
    border-color: var(--primary, #06b6d4);
    background: rgba(99, 102, 241, 0.06);
}
.share-sections-filter .section-filter-chip.checked {
    background: rgba(99, 102, 241, 0.12);
    border-color: var(--primary, #06b6d4);
}
.share-sections-filter .section-filter-chip input[type=checkbox] {
    margin: 0;
    flex-shrink: 0;
    accent-color: var(--primary, #06b6d4);
    width: 15px;
    height: 15px;
}
.share-sections-filter .section-filter-chip .grade-badge {
    margin-right: 2px;
    font-size: 10px;
    padding: 2px 6px;
}
.share-sections-filter .section-filter-chip .section-count {
    opacity: 0.5;
    font-size: 11px;
    margin-left: 2px;
}

/* ========== SHARE SEND BUTTON V2 ========== */
.share-send-btn-v2 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 48px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary, #06b6d4) 0%, #818cf8 100%);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
    letter-spacing: 0.3px;
}
.share-send-btn-v2:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45);
    filter: brightness(1.08);
}
.share-send-btn-v2:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.share-send-btn-v2 i { font-size: 15px; }
.share-send-btn-v2:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    filter: none;
}

/* ========== SECTION MODE CARDS ========== */
.share-section-mode-cards {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap;
    gap: 10px !important;
    margin-top: 8px !important;
}
.section-mode-card {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 6px !important;
    padding: 16px 14px !important;
    border-radius: 12px !important;
    border: 2px solid var(--border-color, rgba(255,255,255,0.08)) !important;
    background: var(--bg-secondary, #1a1f2e) !important;
    cursor: pointer;
    transition: all 0.2s !important;
    text-align: center;
    flex: 1;
    min-width: 130px;
    max-width: 200px;
    position: relative;
}
.section-mode-card:hover {
    border-color: rgba(99, 102, 241, 0.4) !important;
    background: rgba(99, 102, 241, 0.04) !important;
}
.section-mode-card.active-mode {
    border-color: var(--primary, #06b6d4) !important;
    background: rgba(99, 102, 241, 0.1) !important;
    box-shadow: 0 0 0 1px var(--primary, #06b6d4), 0 4px 12px rgba(99, 102, 241, 0.15) !important;
}
.section-mode-card input[type=radio] {
    position: absolute;
    top: 8px;
    right: 8px;
    margin: 0;
    accent-color: var(--primary, #06b6d4);
    width: 16px;
    height: 16px;
}
.section-mode-card-icon {
    font-size: 24px;
    color: var(--text-secondary, #94a3b8);
    margin-bottom: 2px;
    transition: color 0.2s;
}
.section-mode-card.active-mode .section-mode-card-icon {
    color: var(--primary, #06b6d4);
}
.section-mode-card-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary, #e2e8f0);
    line-height: 1.3;
}
.section-mode-card-desc {
    font-size: 11px;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.35;
    margin-top: 2px;
}
.section-mode-card.active-mode .section-mode-card-label {
    color: var(--primary, #06b6d4);
}

/* ========== SHARE SUMMARY CARD ========== */
.share-summary-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 16px;
    margin-top: 8px;
}

/* ========== HIDE FLOATING FABS WHEN SHARE MODAL IS OPEN ========== */
body:has(.student-share-modal[style*="display: flex"]) .ai-chat-window,
body:has(.student-share-modal[style*="display: flex"]) #aiChatButton,
body:has(.student-share-modal[style*="display:flex"]) .ai-chat-window,
body:has(.student-share-modal[style*="display:flex"]) #aiChatButton {
    display: none !important;
    pointer-events: none !important;
}

@media (max-width: 768px) {
    .share-step-header { gap: 8px; }
    .share-step-num { width: 24px; height: 24px; font-size: 11px; }
    .share-step-title { font-size: 14px; }
    .share-sections-filter { gap: 6px; }
    .share-sections-filter .section-filter-chip { padding: 6px 10px; font-size: 11px; }
    .share-section-mode-cards { flex-direction: column !important; }
    .section-mode-card { max-width: none; flex-direction: row !important; padding: 12px !important; gap: 10px !important; }
    .section-mode-card-icon { font-size: 20px; margin-bottom: 0; }
    .section-mode-card-desc { display: none; }
    .share-send-btn-v2 { padding: 14px 20px; font-size: 15px; }
}