/* ============================================================================
   Kweezi Food POS - Component Styles
   ============================================================================ */

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
    line-height: 1.5;
}

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

.btn-sm {
    padding: 5px 12px;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 12px 24px;
    font-size: var(--font-size-md);
}

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

.btn-secondary {
    background: var(--secondary);
    border-color: var(--secondary);
    color: var(--text-white);
}
.btn-secondary:hover:not(:disabled) {
    background: var(--secondary-hover);
    border-color: var(--secondary-hover);
}

.btn-success {
    background: var(--success);
    border-color: var(--success);
    color: var(--text-white);
}
.btn-success:hover:not(:disabled) {
    background: #35a06e;
    border-color: #35a06e;
}

.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: var(--text-white);
}
.btn-danger:hover:not(:disabled) {
    background: #e62e2e;
    border-color: #e62e2e;
}

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}
.btn-outline:hover:not(:disabled) {
    background: var(--bg-light);
    border-color: var(--text-muted);
}

.btn-outline-primary {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}
.btn-outline-primary:hover:not(:disabled) {
    background: var(--primary);
    color: var(--text-white);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}
.btn-ghost:hover:not(:disabled) {
    background: var(--bg-light);
    color: var(--text-primary);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon.btn-sm {
    width: 30px;
    height: 30px;
}

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* --- Form Controls --- */
.form-group {
    margin-bottom: var(--spacing-md);
}

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

.form-label .required {
    color: var(--danger);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    transition: var(--transition-fast);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

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

.form-control:disabled {
    background: var(--bg-light);
    cursor: not-allowed;
}

.form-control.error {
    border-color: var(--danger);
}

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

select.form-control {
    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='%23646B72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

/* Input with icon */
.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group .input-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    pointer-events: none;
    display: flex;
}

.input-group .form-control {
    padding-left: 36px;
}

.input-group .input-icon-right {
    position: absolute;
    right: 12px;
    left: auto;
    color: var(--text-muted);
    cursor: pointer;
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 4px;
    line-height: 1.5;
}

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

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

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

.badge-warning {
    background: var(--warning-light);
    color: #b8860b;
}

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

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

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

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

.table th {
    padding: 10px 16px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-align: left;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.table td {
    padding: 12px 16px;
    font-size: var(--font-size-base);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

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

.table tbody tr:last-child td {
    border-bottom: none;
}

/* --- Dropdown --- */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 180px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: var(--z-dropdown);
    display: none;
    padding: 4px 0;
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    color: var(--text-primary);
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--primary-bg);
    color: var(--primary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* --- Modal --- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-backdrop.show {
    display: flex;
}

.modal {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: var(--z-modal);
}

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

.modal-header h3 {
    font-size: var(--font-size-md);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* --- Toast / Notifications --- */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 16px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary);
    min-width: 300px;
    max-width: 450px;
    animation: slideIn 0.3s ease;
}

.toast.toast-success { border-left-color: var(--success); }
.toast.toast-error { border-left-color: var(--danger); }
.toast.toast-warning { border-left-color: var(--warning); }

.toast-message {
    flex: 1;
    font-size: var(--font-size-sm);
}

.toast-close {
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}

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

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; transform: translateX(50px); }
}

/* --- Loading Spinner --- */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* --- Loading Overlay --- */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-toast);
}

/* --- Empty State --- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--text-muted);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    color: var(--border-color);
}

.empty-state h4 {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

/* --- Avatar --- */
.avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    color: var(--text-white);
    background: var(--primary);
    flex-shrink: 0;
}

.avatar-sm { width: 28px; height: 28px; font-size: var(--font-size-xs); }
.avatar-lg { width: 48px; height: 48px; font-size: var(--font-size-lg); }

/* --- Stat Card --- */
.stat-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

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

.stat-card .stat-info h4 {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.stat-card .stat-info p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* --- Tabs --- */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    gap: 0;
}

.tab {
    padding: 10px 20px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition-fast);
    font-size: var(--font-size-base);
}

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

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* --- Pagination --- */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination .page-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.pagination .page-btn:hover {
    background: var(--bg-light);
}

.pagination .page-btn.active {
    background: var(--primary);
    color: var(--text-white);
}

/* --- Search Bar --- */
.search-bar {
    position: relative;
    width: 100%;
    max-width: 320px;
}

.search-bar input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    transition: var(--transition-fast);
}

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

.search-bar .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}