.calendar-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    margin-top: 1rem;
    align-items: start;
}
@media (max-width: 991px) {
    .calendar-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}
.filter-sidebar {
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 16px);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: background 0.3s, border-color 0.3s;
}
.dark-mode .filter-sidebar {
    background: #111827;
}
.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.filter-group {
    margin-bottom: 1.25rem;
}
.filter-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.filter-control {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border-radius: 10px;
    border: 1.5px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}
.filter-control:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}
.legend-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 0 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.legend-item.interactive {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-main);
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 8px;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}
.legend-item.interactive:hover {
    background: var(--bg-main);
    border-color: var(--border-color);
}
.legend-item.interactive.active {
    background: rgba(var(--primary-rgb), 0.08);
    border-color: rgba(var(--primary-rgb), 0.2);
}
.legend-item.disabled {
    opacity: 0.4;
}
.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.calendar-container-card {
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 16px);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    min-height: 500px;
    transition: background 0.3s, border-color 0.3s;
}
.dark-mode .calendar-container-card {
    background: #111827;
}
.calendar-control-bar {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}
.control-row-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.view-tabs-container {
    display: flex;
    background: var(--bg-main);
    padding: 4px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    gap: 4px;
}
.view-tab-btn {
    border: none;
    background: transparent;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.view-tab-btn:hover {
    color: var(--text-main);
}
.view-tab-btn.active {
    background: var(--bg-card, #ffffff);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}
.dark-mode .view-tab-btn.active {
    background: #1f2937;
}
.period-select-inputs {
    display: flex;
    gap: 0.5rem;
}
.select-period-control {
    padding: 0.45rem 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    outline: none;
}
.period-nav-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.btn-nav-period {
    border: 1px solid var(--border-color);
    background: var(--bg-card, #ffffff);
    color: var(--text-main);
    padding: 0.45rem 0.85rem;
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.dark-mode .btn-nav-period {
    background: #1f2937;
}
.btn-nav-period:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
}
.period-title-display {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
    min-width: 200px;
}
.events-counter-badge {
    background: var(--primary);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 20px;
    margin-left: auto;
}

/* Event Groups & Cards */
.events-date-group {
    margin-bottom: 2.25rem;
    animation: fadeInUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.date-group-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.65rem;
    flex-wrap: wrap;
}
.date-group-badge {
    background: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.date-group-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0;
}
.date-group-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
}
.events-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}
.event-card {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary);
    border-radius: 14px;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}
.event-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    border-color: rgba(var(--primary-rgb), 0.2);
}
.event-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.85rem;
}
.event-card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.event-tag {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}
.event-tag-type {
    color: #ffffff;
}
.event-tag-course {
    background: rgba(var(--primary-rgb), 0.06);
    color: var(--primary);
}
.event-tag-time {
    background: rgba(0,0,0,0.04);
    color: var(--text-muted);
}
.dark-mode .event-tag-time {
    background: rgba(255,255,255,0.06);
}
.event-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 0.65rem 0;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1.4;
}
.event-card-title:hover {
    color: var(--primary);
}
.event-card-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin: 0 0 1.25rem 0;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.event-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 0.85rem;
    margin-top: 0.85rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 0.75rem;
}
.btn-card-action {
    border: none;
    background: transparent;
    color: var(--primary);
    font-weight: 700;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    transition: all 0.2s;
    font-family: inherit;
}
.btn-card-action:hover {
    background: rgba(var(--primary-rgb), 0.06);
}

/* Empty state */
.empty-events-card {
    text-align: center;
    padding: 5rem 2rem;
    color: var(--text-muted);
}
.empty-events-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    width: 80px;
    height: 80px;
    background: var(--bg-main);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
}
.empty-events-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.empty-events-text {
    font-size: 0.95rem;
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Modals styling overrides & scroll lock */
html.modal-open,
body.modal-open {
    overflow: hidden !important;
    height: 100vh !important;
    height: 100dvh !important;
    position: relative !important;
}

.modal-body {
    overscroll-behavior: contain !important;
}
.info-detail-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.info-detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.info-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.info-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
}
.info-desc {
    font-size: 0.95rem;
    color: var(--text-main);
    line-height: 1.7;
    background: var(--bg-main);
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    white-space: pre-line;
}
.badge-type {
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Print styling */
@media print {
    body {
        background: #ffffff !important;
        color: #000000 !important;
    }
    #mainHeader, 
    .mobile-nav-overlay, 
    .hero, 
    .filter-sidebar, 
    .calendar-control-bar, 
    footer,
    .modal-overlay,
    .btn-card-action,
    .event-card-footer,
    #themeToggleBtn,
    #mobileToggle {
        display: none !important;
    }
    .section {
        padding: 0 !important;
        margin: 0 !important;
    }
    .calendar-layout {
        display: block !important;
        margin: 0 !important;
    }
    .calendar-container-card {
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        background: transparent !important;
    }
    .event-card {
        background: #ffffff !important;
        border: 1px solid #e2e8f0 !important;
        border-left: 6px solid var(--primary, #3b82f6) !important;
        page-break-inside: avoid;
        margin-bottom: 1.25rem !important;
        box-shadow: none !important;
        padding: 1.25rem !important;
    }
    .event-card-title {
        color: #000000 !important;
    }
    .calendar-container-card::before {
        content: "Calendario Escolar y de Actividades - Escuela Aníbal Pinto";
        display: block;
        font-size: 1.6rem;
        font-weight: 800;
        margin-bottom: 2rem;
        text-align: center;
        border-bottom: 2px solid #000000;
        padding-bottom: 0.5rem;
    }
}

/* Mobile and Tablet Responsive Enhancements */
.btn-filter-toggle {
    display: none;
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-card, #ffffff);
    color: var(--text-main);
    font-weight: 700;
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s;
}
.dark-mode .btn-filter-toggle {
    background: #1f2937;
}
.btn-filter-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.control-row-navigation {
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    gap: 1rem; 
    flex-wrap: wrap;
}

@media (max-width: 991px) {
    .btn-filter-toggle {
        display: flex;
    }
    .filter-sidebar {
        display: none; /* Hide sidebar by default on mobile */
    }
    .filter-sidebar.open {
        display: block; /* Show sidebar when open class is applied */
        animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
}

@media (max-width: 768px) {
    .control-row-navigation {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
        gap: 1.25rem;
    }
    .period-nav-group {
        justify-content: center;
    }
    .period-title-display {
        text-align: center;
        order: -1; /* Place title at the top */
        min-width: unset;
        margin: 0;
    }
    .btn-nav-period[onclick="window.print()"] {
        justify-content: center;
        margin-left: unset !important;
    }
}

@media (max-width: 576px) {
    .view-tabs-container {
        width: 100%;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
        padding: 3px;
    }
    .view-tab-btn {
        flex: 1 0 auto;
        text-align: center;
        justify-content: center;
        padding: 0.45rem 0.85rem;
        font-size: 0.8rem;
    }
    .period-select-inputs {
        width: 100%;
    }
    .select-period-control {
        flex: 1;
    }
    .event-card {
        padding: 1.15rem;
    }
    .event-card-tags {
        gap: 0.35rem;
    }
    .event-tag {
        font-size: 0.68rem;
        padding: 0.2rem 0.55rem;
    }
    .event-card-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 0.85rem;
    }
    .event-card-actions {
        display: flex;
        justify-content: flex-end;
    }
    .empty-events-card {
        padding: 3.5rem 1rem;
    }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   GRID CALENDAR STYLES (VISTA MES)
   ========================================================================== */
.calendar-grid-wrapper {
    width: 100%;
    margin-top: 0.5rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md, 16px);
    overflow: hidden;
    background: var(--bg-card, #ffffff);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}
.dark-mode .calendar-grid-wrapper {
    background: #111827;
}

.calendar-grid-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: var(--bg-main);
    border-bottom: 1.5px solid var(--border-color);
    text-align: center;
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.calendar-grid-header > div {
    padding: 0.85rem 0.5rem;
    border-right: 1px solid var(--border-color);
}
.calendar-grid-header > div:last-child {
    border-right: none;
}

.calendar-grid-body {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-auto-rows: minmax(110px, 1fr);
}

.calendar-grid-cell {
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 0.65rem 0.55rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    transition: background-color 0.2s, transform 0.1s;
    cursor: pointer;
    background: var(--bg-card, #ffffff);
}
.dark-mode .calendar-grid-cell {
    background: #111827;
}
.calendar-grid-cell:nth-child(7n) {
    border-right: none;
}
.calendar-grid-cell:nth-last-child(-n+7) {
    border-bottom: none;
}

.calendar-grid-cell:hover {
    background-color: var(--bg-main);
}
.calendar-grid-cell.outside-month {
    background: rgba(0, 0, 0, 0.02);
    opacity: 0.45;
}
.dark-mode .calendar-grid-cell.outside-month {
    background: rgba(255, 255, 255, 0.01);
}

.calendar-grid-cell.selected {
    background-color: rgba(var(--primary-rgb), 0.05) !important;
    box-shadow: inset 0 0 0 2px var(--primary);
}

.cell-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.day-number {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-main);
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}
.calendar-grid-cell.today .day-number {
    background: var(--primary);
    color: #ffffff !important;
}

.cell-events-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-grow: 1;
    overflow: hidden;
    width: 100%;
}

.grid-event-item {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    line-height: 1.2;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    transition: transform 0.1s;
    width: 100%;
}
.grid-event-item:hover {
    transform: scale(1.02);
}

.grid-event-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

/* Selected day panel below the grid */
.selected-day-events-panel {
    margin-top: 2rem;
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md, 16px);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    animation: fadeInUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.dark-mode .selected-day-events-panel {
    background: #111827;
}

.selected-day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1.5px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.selected-day-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.selected-day-count {
    background: rgba(var(--primary-rgb), 0.08);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

/* ==========================================================================
   WEEKLY PLANNER STYLES (VISTA SEMANA)
   ========================================================================= */
.weekly-planner-wrapper {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1rem;
    width: 100%;
    margin-top: 0.5rem;
}

.weekly-day-column {
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 0.85rem;
    min-height: 380px;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}
.dark-mode .weekly-day-column {
    background: #111827;
}

.weekly-day-column.today {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary), var(--shadow-sm);
    background-color: rgba(var(--primary-rgb), 0.01);
}

.weekly-day-header {
    border-bottom: 1.5px solid var(--border-color);
    padding-bottom: 0.65rem;
    text-align: center;
}
.weekly-day-name {
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.weekly-day-number {
    font-size: 1.35rem;
    font-weight: 900;
    color: var(--text-main);
    margin-top: 0.15rem;
    display: inline-block;
    width: 32px;
    height: 32px;
    line-height: 32px;
    border-radius: 50%;
}
.weekly-day-column.today .weekly-day-number {
    background: var(--primary);
    color: #ffffff;
}

.weekly-events-list {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    flex-grow: 1;
    overflow-y: auto;
}

.weekly-event-card {
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--primary);
    border-radius: 10px;
    padding: 0.65rem;
    background: var(--bg-main);
    transition: all 0.2s;
    cursor: pointer;
}
.weekly-event-card:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-xs, 0 1px 3px rgba(0,0,0,0.05));
    border-color: rgba(var(--primary-rgb), 0.2);
}
.weekly-event-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 0.25rem 0;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.weekly-event-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* ==========================================================================
   MOBILE RESPONSIVE ADJUSTMENTS FOR GRID CALENDAR
   ========================================================================== */
@media (max-width: 991px) {
    .weekly-planner-wrapper {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.85rem;
    }
    .weekly-day-column {
        min-height: unset;
    }
}

@media (max-width: 768px) {
    .calendar-grid-header {
        font-size: 0.72rem;
    }
    .calendar-grid-header > div {
        padding: 0.65rem 0.25rem;
    }
    
    .calendar-grid-body {
        grid-auto-rows: minmax(62px, auto);
    }
    
    .calendar-grid-cell {
        padding: 0.4rem 0.25rem;
        align-items: center;
        justify-content: flex-start;
        min-height: 60px;
    }
    
    .cell-header {
        justify-content: center;
        margin-bottom: 0.15rem;
    }
    
    .day-number {
        font-size: 0.82rem;
        width: 22px;
        height: 22px;
    }
    
    .cell-events-list {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 3px;
        width: auto;
    }
    
    .grid-event-item {
        width: 6px;
        height: 6px;
        padding: 0;
        border-radius: 50%;
        text-indent: -9999px;
        overflow: hidden;
        min-width: 6px;
        box-shadow: none;
    }
}

@media (max-width: 576px) {
    .weekly-planner-wrapper {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    .weekly-day-column {
        padding: 0.75rem;
    }
    .selected-day-events-panel {
        padding: 1.15rem;
        margin-top: 1.5rem;
    }
}