/* ==================== Global Styles ==================== */
:root {
    --primary-green: #2e7d32;
    --primary-green-dark: #1b5e20;
    --primary-green-light: #4caf50;
    --accent-green: #81c784;
    --light-green: #e8f5e9;
    --very-light-green: #f1f8e9;
    --white: #ffffff;
    --off-white: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --text-dark: #212121;
    --text-muted: #757575;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.3s ease;
}

html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    background-color: var(--off-white);
    margin-bottom: 0;
    min-height: 100vh;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

* {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--primary-green);
}

/* ==================== Search Bar Styles ==================== */
.search-bar {
    padding: 1rem 1.5rem;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.search-and-pagesize {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.global-search {
    position: relative;
    flex: 1;
    max-width: 600px;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    font-size: 1.1rem;
}

.global-search-input {
    width: 100%;
    padding: 0.75rem 3rem 0.75rem 2.75rem;
    border: 2px solid var(--gray-300);
    border-radius: 50px;
    font-size: 0.95rem;
    transition: var(--transition);
    background: var(--gray-100);
}

.global-search-input:focus {
    outline: none;
    border-color: var(--primary-green);
    background: var(--white);
    box-shadow: 0 0 0 4px var(--light-green);
}

.global-search-input::placeholder {
    color: var(--gray-500);
}

.clear-search-btn {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gray-400);
    border: none;
    color: var(--white);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: var(--transition);
}

.clear-search-btn:hover {
    background: var(--gray-600);
}

/* ==================== Page Size Selector ==================== */
.page-size-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.page-size-select {
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    background: var(--white);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.page-size-select:focus {
    outline: none;
    border-color: var(--primary-green);
}

.page-size-select:hover {
    border-color: var(--primary-green-light);
}

/* ==================== Excel Viewer Styles ==================== */
.excel-viewer-container {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    margin: 0.5rem;
    overflow: hidden;
    height: calc(100vh - 70px);
    display: flex;
    flex-direction: column;
}

.viewer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-dark));
    color: var(--white);
    flex-wrap: wrap;
    gap: 1rem;
    flex-shrink: 0;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-icon {
    font-size: 2.5rem;
    opacity: 0.9;
}

.file-details h4 {
    margin: 0;
    font-weight: 600;
    font-size: 1.25rem;
}

.record-count {
    font-size: 0.9rem;
    opacity: 0.9;
}

.viewer-actions {
    display: flex;
    gap: 0.75rem;
}

.viewer-actions .btn {
    font-weight: 500;
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--primary-green);
}

.filter-summary {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    background: var(--light-green);
    border-bottom: 1px solid var(--gray-200);
    flex-wrap: wrap;
    flex-shrink: 0;
}

.filter-label {
    color: var(--primary-green-dark);
    font-weight: 500;
    font-size: 0.875rem;
}

.filter-tag {
    background: var(--primary-green);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-right: 0.5rem;
}

/* ==================== Loading Overlay ==================== */
.table-wrapper {
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 20;
}

.loading-spinner {
    text-align: center;
}

.loading-spinner p {
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.filter-loading {
    padding: 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ==================== Table Styles ==================== */
.table-container {
    flex: 1;
    overflow: auto;
    min-height: 0;
}

.excel-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.excel-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
}

.excel-table th {
    background: var(--primary-green);
    color: var(--white);
    padding: 0;
    font-weight: 600;
    text-align: left;
    white-space: nowrap;
    border-right: 1px solid rgba(255,255,255,0.2);
}

.excel-table th:last-child {
    border-right: none;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    gap: 0.75rem;
}

.header-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.header-text.sortable {
    cursor: pointer;
    user-select: none;
}

.header-text.sortable:hover {
    opacity: 0.9;
}

.sort-icon {
    font-size: 0.8rem;
    opacity: 0.5;
    transition: var(--transition);
}

.sort-icon.active {
    opacity: 1;
    color: var(--white);
}

.filter-wrapper {
    position: relative;
}

.filter-btn {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.7);
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 4px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.filter-btn:hover {
    background: rgba(255,255,255,0.2);
    color: var(--white);
}

.filter-btn.active {
    background: var(--white);
    color: var(--primary-green);
}

/* ==================== Filter Dropdown Styles ==================== */
.filter-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    min-width: 260px;
    max-width: 350px;
    display: none;
    z-index: 100;
    margin-top: 0.5rem;
    text-align: left;
}

.filter-dropdown.show {
    display: block;
}

.filter-search {
    padding: 0.75rem;
    border-bottom: 1px solid var(--gray-200);
}

.filter-search-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    transition: var(--transition);
}

.filter-search-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px var(--light-green);
}

.filter-options {
    max-height: 280px;
    overflow-y: auto;
}

.filter-values-container {
    max-height: 220px;
    overflow-y: auto;
    padding: 0.25rem 0;
}

.filter-option {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-dark);
    gap: 0.5rem;
}

.filter-option:hover {
    background: var(--light-green);
}

.filter-option.select-all {
    border-bottom: 1px solid var(--gray-200);
    font-weight: 500;
    padding: 0.75rem;
}

.filter-option input[type="checkbox"] {
    accent-color: var(--primary-green);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.filter-option span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.85rem;
}

.filter-actions {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-100);
}

.btn-filter-apply,
.btn-filter-clear {
    flex: 1;
    padding: 0.5rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-filter-apply {
    background: var(--primary-green);
    color: var(--white);
}

.btn-filter-apply:hover {
    background: var(--primary-green-dark);
}

.btn-filter-clear {
    background: var(--white);
    color: var(--text-dark);
    border: 1px solid var(--gray-300);
}

.btn-filter-clear:hover {
    background: var(--gray-100);
}

/* ==================== Table Body Styles ==================== */
.excel-table td {
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--gray-200);
    color: var(--text-dark);
    background: var(--white);
    text-align: left;
    font-size: 0.9rem;
    min-width: 120px;
}

.excel-table tbody tr:hover td {
    background: var(--very-light-green);
}

.excel-table tbody tr:nth-child(even) td {
    background: var(--gray-100);
}

.excel-table tbody tr:nth-child(even):hover td {
    background: var(--very-light-green);
}

/* ==================== No Data State ==================== */
.no-data-row td {
    padding: 0 !important;
    background: var(--white) !important;
}

.no-data {
    padding: 4rem;
    text-align: center;
    color: var(--text-muted);
}

.no-data i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.no-data p {
    margin: 0;
    font-size: 1.1rem;
}

/* ==================== Table Footer with Pagination ==================== */
.table-footer {
    padding: 1rem 1.5rem;
    background: var(--gray-100);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    flex-shrink: 0;
}

.pagination-info {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.pagination-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--text-dark);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: var(--white);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0 0.5rem;
}

.page-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 0.5rem;
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--text-dark);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.page-number:hover:not(.active) {
    background: var(--light-green);
    border-color: var(--primary-green);
    color: var(--primary-green);
}

.page-number.active {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: var(--white);
    font-weight: 600;
}

.page-ellipsis {
    padding: 0 0.5rem;
    color: var(--text-muted);
}

/* ==================== Error Toast ==================== */
.error-toast {
    position: fixed;
    bottom: 80px;
    right: 20px;
    background: #f44336;
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.error-toast i {
    font-size: 1.25rem;
}

.btn-close-toast {
    background: transparent;
    border: none;
    color: var(--white);
    cursor: pointer;
    padding: 0.25rem;
    opacity: 0.8;
}

.btn-close-toast:hover {
    opacity: 1;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ==================== Footer Styles ==================== */
.footer-simple {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    padding: 0.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    z-index: 50;
}

/* ==================== Responsive Styles ==================== */
@media (max-width: 768px) {
    .excel-viewer-container {
        margin: 0.25rem;
        height: calc(100vh - 60px);
    }

    .viewer-header {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }

    .file-info {
        flex-direction: column;
        text-align: center;
    }

    .viewer-actions {
        width: 100%;
        justify-content: center;
    }

    .filter-dropdown {
        right: auto;
        left: 50%;
        transform: translateX(-50%);
    }

    .search-and-pagesize {
        flex-direction: column;
        align-items: stretch;
    }

    .global-search {
        max-width: 100%;
    }

    .page-size-selector {
        justify-content: center;
    }

    .table-footer {
        flex-direction: column;
        text-align: center;
    }

    .pagination-controls {
        justify-content: center;
        flex-wrap: wrap;
    }

    .page-numbers {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }

    .error-toast {
        left: 20px;
        right: 20px;
        bottom: 70px;
    }
}

/* ==================== Large Screen Styles ==================== */
@media (min-width: 1200px) {
    .excel-viewer-container {
        margin: 0.5rem;
        height: calc(100vh - 70px);
    }

    .excel-table td {
        min-width: 140px;
        padding: 0.875rem 1.25rem;
    }

    .header-content {
        padding: 0.875rem 1.25rem;
    }
}

@media (min-width: 1600px) {
    .excel-viewer-container {
        margin: 0.75rem;
        height: calc(100vh - 80px);
    }

    .excel-table {
        font-size: 0.95rem;
    }

    .excel-table td {
        padding: 1rem 1.5rem;
        min-width: 160px;
    }

    .header-content {
        padding: 1rem 1.5rem;
    }
}