/* ===== FBR POS Design System - einvoicing.pk theme ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #4db6ac;
    --primary-dark: #26a69a;
    --primary-light: #b2dfdb;
    --accent: #ff7043;
    --accent-dark: #e64a19;
    --bg: #f5f7fa;
    --bg-white: #ffffff;
    --text-dark: #263238;
    --text-muted: #607d8b;
    --text-light: #90a4ae;
    --border: #e0e6ed;
    --success: #4caf50;
    --success-bg: #e8f5e9;
    --warning: #ff9800;
    --warning-bg: #fff3e0;
    --danger: #f44336;
    --danger-bg: #ffebee;
    --info: #2196f3;
    --info-bg: #e3f2fd;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-sm: 8px;
    --sidebar-width: 260px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text-dark);
    font-size: 14px;
    line-height: 1.6;
}

a {
    color: var(--primary-dark);
    text-decoration: none;
}

a:hover {
    color: var(--accent);
}

/* ===== Layout ===== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #263238 0%, #37474f 100%);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    display: flex;
    flex-direction: column;
}

.sidebar-brand {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-brand img {
    max-width: 140px;
    height: auto;
    margin-bottom: 8px;
}

.sidebar-brand h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-light);
    margin: 0;
}

.sidebar-brand small {
    font-size: 18px;
    color: var(--text-light);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: #b0bec5;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border-left-color: var(--primary);
}

.sidebar-nav a.active {
    background: rgba(77, 182, 172, 0.15);
    color: var(--primary-light);
    border-left-color: var(--primary);
}

.sidebar-nav a svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 12px;
    color: var(--text-light);
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 0;
    min-height: 100vh;
}

/* ===== Top Bar ===== */
.top-bar {
    background: var(--bg-white);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--bg);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

/* ===== Page Content ===== */
.page-content {
    padding: 28px 32px;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

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

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

.card-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}

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

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

table.data-table th {
    background: var(--bg);
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

table.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

table.data-table tr:hover {
    background: rgba(77, 182, 172, 0.04);
}

table.data-table td.actions {
    white-space: nowrap;
}

/* ===== Badges ===== */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

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

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
}

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

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

.badge-primary {
    background: rgba(77, 182, 172, 0.15);
    color: var(--primary-dark);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

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

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

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

.btn-accent:hover {
    background: var(--accent-dark);
    color: #fff;
}

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

.btn-success:hover {
    background: #43a047;
    color: #fff;
}

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

.btn-danger:hover {
    background: #e53935;
    color: #fff;
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
    background: rgba(77, 182, 172, 0.05);
}

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

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

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(77, 182, 172, 0.15);
}

select.form-control {
    appearance: auto;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

/* ===== Alerts / Flash ===== */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: var(--success-bg);
    color: #2e7d32;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background: var(--danger-bg);
    color: #c62828;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: var(--warning-bg);
    color: #e65100;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: var(--info-bg);
    color: #1565c0;
    border-left: 4px solid var(--info);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 20px;
    justify-content: center;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.pagination a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.pagination .active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.pagination .disabled {
    opacity: 0.4;
    pointer-events: none;
}

/* ===== Filters Bar ===== */
.filters-bar {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
    padding: 20px 24px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.filters-bar .form-group {
    margin-bottom: 0;
    min-width: 150px;
}

.filters-bar .form-control {
    padding: 8px 12px;
    font-size: 13px;
}

/* ===== Line Items Table ===== */
.line-items-table {
    width: 100%;
    border-collapse: collapse;
}

.line-items-table th {
    background: var(--bg);
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    text-align: left;
    border-bottom: 2px solid var(--border);
}

.line-items-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.line-items-table .form-control {
    padding: 8px 10px;
    font-size: 13px;
}

.line-items-table input[type="number"] {
    width: 90px;
}

.line-items-table .computed {
    background: var(--bg);
    font-weight: 600;
    color: var(--text-dark);
}

/* ===== Invoice Detail ===== */
.invoice-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.detail-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.detail-value {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
}

.invoice-totals {
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-top: 20px;
}

.invoice-totals .row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
}

.invoice-totals .row.grand-total {
    border-top: 2px solid var(--border);
    margin-top: 8px;
    padding-top: 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-dark);
}

/* ===== FBR Status Box ===== */
.fbr-status-box {
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}

.fbr-status-box.success {
    background: var(--success-bg);
    border: 2px solid var(--success);
}

.fbr-status-box.pending {
    background: var(--warning-bg);
    border: 2px solid var(--warning);
}

.fbr-status-box.error {
    background: var(--danger-bg);
    border: 2px solid var(--danger);
}

.fbr-status-box h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.fbr-status-box p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

/* ===== Login Page ===== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #263238 0%, #37474f 50%, var(--primary-dark) 100%);
}

.login-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.login-card img {
    max-width: 160px;
    height: auto;
    margin-bottom: 16px;
}

.login-card h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.login-card p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 32px;
}

.login-card .form-group {
    text-align: left;
}

/* ===== Autocomplete ===== */
.autocomplete-wrapper {
    position: relative;
}

.autocomplete-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    max-height: 200px;
    overflow-y: auto;
    z-index: 200;
    display: none;
}

.autocomplete-results.show {
    display: block;
}

.autocomplete-item {
    padding: 10px 14px;
    cursor: pointer;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
}

.autocomplete-item:hover {
    background: rgba(77, 182, 172, 0.08);
}

.autocomplete-item small {
    color: var(--text-light);
}

/* ===== Notification Toast ===== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: 14px;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

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

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

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

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

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

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

.modal {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 32px;
    max-width: 500px;
    width: 90%;
}

.modal h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.modal p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ===== Utilities ===== */
.text-right {
    text-align: right;
}

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

.text-muted {
    color: var(--text-muted);
}

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

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

.text-accent {
    color: var(--accent);
}

.font-mono {
    font-family: 'Courier New', monospace;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-8 {
    margin-bottom: 8px;
}

.mb-16 {
    margin-bottom: 16px;
}

.mb-24 {
    margin-bottom: 24px;
}

.mt-16 {
    margin-top: 16px;
}

.mt-24 {
    margin-top: 24px;
}

.d-flex {
    display: flex;
}

.gap-8 {
    gap: 8px;
}

.gap-16 {
    gap: 16px;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.flex-1 {
    flex: 1;
}

/* ===== Print Styles ===== */
@media print {

    .sidebar,
    .top-bar,
    .no-print,
    .btn,
    .filters-bar {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
    }

    .page-content {
        padding: 0 !important;
    }

    .card {
        box-shadow: none !important;
        border: 1px solid #ddd;
    }

    body {
        background: #fff;
    }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .top-bar {
        padding: 12px 16px;
    }

    .page-content {
        padding: 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .invoice-detail-grid {
        grid-template-columns: 1fr;
    }

    .filters-bar {
        flex-direction: column;
    }
}