:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --text-muted: #7f8c8d;
    --border-color: #dee2e6;
}

body {
    background-color: #fff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    padding: 15px 0;
}

.main-header {
    background-color: var(--primary-color);
    color: white;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 15px;
}

.main-header h1 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
}

.card {
    border: 1px solid var(--border-color);
    border-radius: 5px;
    margin-bottom: 15px;
}

.card-header {
    background-color: var(--light-color);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 15px;
    font-weight: 600;
    font-size: 14px;
    border-radius: 5px 5px 0 0;
}

.card-body {
    padding: 15px;
}

.stat-card {
    border-left: 3px solid;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-3px);
}

.stat-card .card-body {
    padding: 12px;
}

.stat-card h6 {
    font-size: 11px;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card h3 {
    font-size: 1.3rem;
    margin: 5px 0;
    font-weight: 700;
}

.stat-card small {
    font-size: 11px;
}

.income-card { 
    border-left-color: var(--success-color);
}

.income-card h3 {
    color: var(--success-color);
}

.expense-card { 
    border-left-color: var(--danger-color);
}

.expense-card h3 {
    color: var(--danger-color);
}

.profit-card { 
    border-left-color: var(--info-color);
}

.profit-card h3 {
    color: var(--info-color);
}

.tax-card { 
    border-left-color: var(--warning-color);
}

.tax-card h3 {
    color: var(--warning-color);
}

.table {
    font-size: 13px;
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    color: var(--secondary-color);
    padding: 8px;
    background-color: var(--light-color);
}

.table td {
    padding: 8px;
    vertical-align: middle;
}

.table-sm th,
.table-sm td {
    padding: 5px 8px;
}

.table-hover tbody tr {
    cursor: pointer;
}

.table-hover tbody tr:hover {
    background-color: rgba(52, 73, 94, 0.03);
}

.badge {
    font-size: 11px;
    padding: 4px 8px;
}

.badge-income {
    background-color: var(--success-color);
}

.badge-expense {
    background-color: var(--danger-color);
}

.action-buttons {
    white-space: nowrap;
}

.btn {
    font-size: 13px;
    padding: 6px 12px;
}

.btn-sm {
    padding: 3px 8px;
    font-size: 12px;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-danger {
    background-color: var(--danger-color);
    border-color: var(--danger-color);
}

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    color: white;
}

.btn-info {
    background-color: var(--info-color);
    border-color: var(--info-color);
    color: white;
}

.form-label {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 5px;
}

.form-control,
.form-select {
    font-size: 13px;
    padding: 6px 10px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.15rem rgba(44, 62, 80, 0.15);
}

textarea.form-control {
    resize: vertical;
}

/* File upload - minimal design */
.file-upload-wrapper {
    margin-bottom: 10px;
}

.file-upload-label {
    display: block;
    padding: 8px 12px;
    background-color: var(--light-color);
    border: 1px dashed var(--border-color);
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 12px;
}

.file-upload-label:hover {
    border-color: var(--primary-color);
    background-color: #fff;
}

.file-upload-label i {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

input[type="file"] {
    display: none;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background-color: var(--light-color);
    border-radius: 4px;
    margin-bottom: 6px;
    font-size: 12px;
}

.file-item i {
    font-size: 1rem;
    color: #ffffff;
}

.file-item span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#existingFiles {
    max-height: 250px;
    overflow-y: auto;
}

.alert {
    padding: 10px 15px;
    border-radius: 4px;
    border: none;
    font-size: 13px;
    margin-bottom: 15px;
}

.alert-info {
    background-color: #e8f4f8;
    color: var(--info-color);
}

.text-success {
    color: var(--success-color) !important;
}

.text-danger {
    color: var(--danger-color) !important;
}

.text-info {
    color: var(--info-color) !important;
}

.text-warning {
    color: var(--warning-color) !important;
}

.text-muted {
    color: var(--text-muted) !important;
    font-size: 12px;
}

.modal-content {
    border-radius: 5px;
}

.modal-header {
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px 5px 0 0;
    padding: 12px 15px;
}

.modal-header .modal-title {
    font-size: 1.1rem;
}

.modal-header .btn-close {
    filter: invert(1);
}

.modal-body {
    padding: 15px;
}

.modal-footer {
    padding: 10px 15px;
}

/* Detail Modal */
.detail-row {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 3px;
}

.detail-value {
    font-size: 14px;
    color: var(--dark-color);
}

.detail-files {
    margin-top: 10px;
}

.detail-file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--light-color);
    border-radius: 4px;
    margin-bottom: 6px;
    font-size: 13px;
}

.detail-file-item i {
    font-size: 1.2rem;
    color: var(--bs-danger);
}

.detail-file-item a {
    text-decoration: none;
    color: rgb(26, 26, 26);
    flex: 1;
}

.detail-file-item a:hover {
    color: var(--primary-color);
}

/* Image preview styles */
.file-item img,
.detail-file-item img {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
}

.file-item img:hover,
.detail-file-item img:hover {
    transform: scale(1.1);
}

.file-item-image,
.detail-file-item-image {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    cursor: pointer;
}

.lightbox.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10001;
}

.lightbox-close:hover {
    color: #ccc;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .stat-card h3 {
        font-size: 1.1rem;
    }
    
    .main-header h1 {
        font-size: 1.2rem;
    }
    
    .table-responsive {
        font-size: 12px;
    }
}

/* Compact spacing */
.mb-3 {
    margin-bottom: 12px !important;
}

.mb-4 {
    margin-bottom: 15px !important;
}

.row {
    margin-left: -8px;
    margin-right: -8px;
}

.row > * {
    padding-left: 8px;
    padding-right: 8px;
}