/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    transition: box-shadow var(--transition-fast)
}

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

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary)
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0
}

.stat-card.sales::before {
    background: linear-gradient(90deg, var(--primary), var(--primary-light))
}

.stat-card.expenses::before {
    background: linear-gradient(90deg, var(--danger), #f97316)
}

.stat-card.profit::before {
    background: linear-gradient(90deg, var(--success), #34d399)
}

.stat-card.outstanding::before {
    background: linear-gradient(90deg, var(--warning), #fbbf24)
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0
}

.stat-icon.blue {
    background: var(--primary-50);
    color: var(--primary)
}

.stat-icon.red {
    background: var(--danger-light);
    color: var(--danger)
}

.stat-icon.green {
    background: var(--success-light);
    color: var(--success)
}

.stat-icon.orange {
    background: var(--warning-light);
    color: var(--warning)
}

.stat-info {
    flex: 1
}

.stat-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-top: 6px;
    padding: 2px 8px;
    border-radius: var(--radius-full)
}

.stat-change.up {
    color: var(--success-dark);
    background: var(--success-light)
}

.stat-change.down {
    color: var(--danger-dark);
    background: var(--danger-light)
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), .3);
    color: #fff
}

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

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

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

.btn-success:hover {
    background: var(--success-dark)
}

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

.btn-danger:hover {
    background: var(--danger-dark)
}

.btn-warning {
    background: var(--warning);
    color: #fff
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary)
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: none
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary)
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px
}

.btn-icon {
    padding: 8px;
    border-radius: var(--radius-md)
}

.btn-block {
    display: flex;
    width: 100%
}

/* Forms */
.form-group {
    margin-bottom: 20px
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all var(--transition-fast)
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), .1)
}

.form-control::placeholder {
    color: var(--text-tertiary)
}

textarea.form-control {
    resize: vertical;
    min-height: 100px
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23475569' d='M6 8.825a.5.5 0 01-.354-.146l-4-4a.5.5 0 01.708-.708L6 7.618l3.646-3.647a.5.5 0 01.708.708l-4 4A.5.5 0 016 8.825z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px
}

.form-error {
    font-size: 12px;
    color: var(--danger);
    margin-top: 4px
}

.input-group {
    display: flex;
    align-items: stretch
}

.input-group .form-control {
    border-radius: var(--radius-md) 0 0 var(--radius-md)
}

.input-group .btn {
    border-radius: 0 var(--radius-md) var(--radius-md) 0
}

.input-group .input-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-input);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    color: var(--text-secondary)
}

.input-group .input-icon+.form-control {
    border-radius: 0 var(--radius-md) var(--radius-md) 0
}

/* Tables */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-card)
}

.table {
    width: 100%;
    border-collapse: collapse
}

.table thead {
    background: var(--bg-tertiary)
}

.table th {
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--text-secondary);
    text-align: left;
    white-space: nowrap
}

.table td {
    padding: 14px 16px;
    font-size: 14px;
    color: var(--text-primary);
    border-top: 1px solid var(--border-light)
}

.table tbody tr {
    transition: background var(--transition-fast)
}

.table tbody tr:hover {
    background: var(--bg-tertiary)
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600
}

.badge-paid,
.badge-success {
    background: var(--success-light);
    color: var(--success-dark)
}

.badge-pending,
.badge-warning {
    background: var(--warning-light);
    color: var(--warning-dark)
}

.badge-overdue,
.badge-danger {
    background: var(--danger-light);
    color: var(--danger-dark)
}

.badge-info {
    background: var(--info-light);
    color: var(--info)
}

.badge-primary {
    background: var(--primary-50);
    color: var(--primary)
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, .5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    padding: 20px
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(.95) translateY(10px);
    transition: transform var(--transition-normal)
}

.modal-overlay.show .modal {
    transform: scale(1) translateY(0)
}

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

.modal-title {
    font-size: 18px;
    font-weight: 700
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
    line-height: 1
}

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

.modal-body {
    padding: 24px
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color)
}

/* Tabs */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: 24px;
    overflow-x: auto
}

.tab-btn {
    padding: 8px 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap
}

.tab-btn:hover {
    color: var(--text-primary)
}

.tab-btn.active {
    background: var(--bg-card);
    color: var(--primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm)
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center
}

.empty-state .empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: .3
}

.empty-state .empty-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px
}

.empty-state .empty-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    max-width: 400px
}