.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
    margin-bottom: 20px;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.card-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--nav-hover);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

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

.btn-danger:hover {
    background: var(--danger-hover);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
    font-size: 1rem;
}

.btn-icon.edit {
    background: var(--primary-light);
    color: var(--primary);
}

.btn-icon.edit:hover {
    background: var(--primary);
    color: white;
}

.btn-icon.delete {
    background: var(--danger-light);
    color: var(--danger);
}

.btn-icon.delete:hover {
    background: var(--danger);
    color: white;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    align-items: end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    padding: 10px 14px;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-submit {
    justify-content: flex-end;
}

/* Filters */
.filters-bar {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 12px;
}

.search-box {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    pointer-events: none;
}

.search-box input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    transition: var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.filter-select,
.filter-input {
    padding: 10px 14px;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-select:focus,
.filter-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* Tables */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.data-table th {
    padding: 14px 20px;
    text-align: left;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--table-stripe);
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 16px 20px;
    font-size: 0.95rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
}

.data-table tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--card-bg-hover);
}

.data-table .actions-cell {
    display: flex;
    gap: 8px;
}

.amount-cell {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.amount-cell.expense {
    color: var(--danger);
}

.amount-cell.income {
    color: var(--success);
}

.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--nav-hover);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
}

.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    font-size: 1.1rem;
}

.modal-close:hover {
    background: var(--nav-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-body .form-group {
    margin-bottom: 16px;
}

.modal-body .form-group:last-child {
    margin-bottom: 0;
}

.modal-body .form-group input,
.modal-body .form-group select {
    width: 100%;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* Notifications */
.notifications {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
    pointer-events: none;
}

.notification {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 4px solid var(--primary);
    animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: auto;
    min-width: 280px;
}

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

.notification.error {
    border-left-color: var(--danger);
}

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

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

.notification-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.notification-message {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.notification.closing {
    animation: slideOutRight 0.3s ease forwards;
}

/* Stats cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
}

.stat-card.stat-income::before {
    background: var(--success);
}

.stat-card.stat-expense::before {
    background: var(--danger);
}

.stat-card.stat-balance::before {
    background: var(--primary);
}

.stat-card.stat-count::before {
    background: var(--info);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-income .stat-card-icon {
    background: var(--success-light);
}

.stat-expense .stat-card-icon {
    background: var(--danger-light);
}

.stat-card-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.stat-card-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.stat-card-trend {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.stat-card-trend.positive {
    color: var(--success);
}

.stat-card-trend.negative {
    color: var(--danger);
}