/**
 * Business Documents Management System
 * Umair Sadiq Company for Trading
 * Design Tokens & Comprehensive Styling
 */

:root {
    --bg-page: #FAF7F0;
    --bg-surface: #FFFFFF;
    --text-primary: #111822;
    --text-secondary: #595852;
    --text-muted: #888680;
    --border-color: #E6E1D5;
    --border-light: #F0EDE4;
    
    --brand-primary: #0F2038;
    --brand-primary-hover: #1A3254;
    --brand-accent: #B45309;
    --brand-accent-hover: #92400E;
    
    --status-draft-bg: #F1F0EC;
    --status-draft-text: #595852;
    --status-sent-bg: #E0F2FE;
    --status-sent-text: #0369A1;
    --status-success-bg: #DCFCE7;
    --status-success-text: #15803D;
    --status-warning-bg: #FEF3C7;
    --status-warning-text: #B45309;
    --status-danger-bg: #FEE2E2;
    --status-danger-text: #B91C1C;
    
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --header-height: 64px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(15, 32, 56, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 32, 56, 0.07), 0 2px 4px -1px rgba(15, 32, 56, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15, 32, 56, 0.08), 0 4px 6px -2px rgba(15, 32, 56, 0.04);
    
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --font-arabic: "Segoe UI", Tahoma, "Noto Sans Arabic", Arial, sans-serif;
}

/* Reset & Basics */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-page);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

[dir="rtl"] body {
    font-family: var(--font-arabic);
}

a {
    color: var(--brand-accent);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

/* Layout */
.app-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--brand-primary);
    color: #FFFFFF;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    transition: width 0.25s ease, transform 0.25s ease;
    z-index: 100;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
}

[dir="rtl"] .sidebar {
    left: auto;
    right: 0;
}

/* Custom sleek scrollbar for sidebar */
.sidebar::-webkit-scrollbar,
.sidebar-nav::-webkit-scrollbar {
    width: 5px;
}
.sidebar::-webkit-scrollbar-track,
.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar::-webkit-scrollbar-thumb,
.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.18);
    border-radius: 4px;
}
.sidebar::-webkit-scrollbar-thumb:hover,
.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.35);
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #FFFFFF;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}

.sidebar-logo svg {
    flex-shrink: 0;
    color: #FBBF24;
}

.sidebar-nav {
    flex: 1;
    padding: 1.25rem 0.75rem;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.nav-group-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.45);
    padding: 0.5rem 0.75rem 0.25rem;
    margin-top: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    color: rgba(255, 255, 255, 0.75);
    border-radius: var(--radius-md);
    margin-bottom: 0.25rem;
    font-weight: 500;
    transition: all 0.15s ease;
}

.nav-link:hover {
    color: #FFFFFF;
    background-color: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
    color: #FFFFFF;
    background-color: var(--brand-accent);
}

.nav-link svg {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
}

.sidebar-footer {
    padding: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
    background-color: rgba(0, 0, 0, 0.12);
}

.sidebar-logout-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.65rem 0.85rem;
    color: #F87171;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    transition: all 0.15s ease;
    text-decoration: none;
}

.sidebar-logout-btn:hover {
    color: #FFFFFF;
    background-color: rgba(239, 68, 68, 0.2);
}

.sidebar-logout-btn svg {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
}

.main-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

[dir="rtl"] .main-container {
    margin-left: 0;
    margin-right: var(--sidebar-width);
}

.header {
    height: var(--header-height);
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    background-color: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-md);
    background-color: var(--bg-page);
    border: 1px solid var(--border-color);
}

.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: var(--brand-primary);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.content {
    flex: 1;
    padding: 1.5rem;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* UI Surfaces & Cards */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-header {
    padding: 1.1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-surface);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: #FAF8F4;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Metric / Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
}

/* Stat card modifiers (clean uniform borders) */
.stat-card.accent,
.stat-card.primary,
.stat-card.danger,
.stat-card.success {
    border: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.55rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    line-height: 1.4;
}

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

.btn-primary:hover {
    background-color: var(--brand-primary-hover);
    color: #FFFFFF;
}

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

.btn-accent:hover {
    background-color: var(--brand-accent-hover);
    color: #FFFFFF;
}

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

.btn-outline:hover {
    background-color: var(--bg-page);
    border-color: #D1CBBF;
}

.btn-danger {
    background-color: #DC2626;
    color: #FFFFFF;
}

.btn-danger:hover {
    background-color: #B91C1C;
    color: #FFFFFF;
}

.btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn svg {
    width: 1.1rem;
    height: 1.1rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.form-label .required {
    color: #DC2626;
    margin-left: 0.2rem;
}

.form-control, .form-select, .form-textarea {
    width: 100%;
    padding: 0.6rem 0.85rem;
    font-size: 0.92rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(15, 32, 56, 0.1);
}

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

.form-text {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.form-error {
    font-size: 0.78rem;
    color: #DC2626;
    margin-top: 0.3rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

[dir="rtl"] .table {
    text-align: right;
}

.table th {
    background-color: #FAF8F4;
    color: var(--text-secondary);
    font-weight: 600;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
    vertical-align: middle;
}

.table tbody tr:hover {
    background-color: rgba(250, 247, 240, 0.6);
}

.table-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

/* Badges & Status */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 9999px;
    line-height: 1;
    text-transform: capitalize;
}

.badge-draft { background-color: var(--status-draft-bg); color: var(--status-draft-text); }
.badge-sent, .badge-issued { background-color: var(--status-sent-bg); color: var(--status-sent-text); }
.badge-accepted, .badge-delivered, .badge-paid, .badge-active { background-color: var(--status-success-bg); color: var(--status-success-text); }
.badge-partial { background-color: var(--status-warning-bg); color: var(--status-warning-text); }
.badge-rejected, .badge-cancelled, .badge-overdue, .badge-inactive { background-color: var(--status-danger-bg); color: var(--status-danger-text); }
.badge-expired { background-color: #E5E7EB; color: #4B5563; }

/* Alerts / Flash Messages */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 500;
}

.alert-success { background-color: var(--status-success-bg); color: var(--status-success-text); border: 1px solid #BBF7D0; }
.alert-error { background-color: var(--status-danger-bg); color: var(--status-danger-text); border: 1px solid #FECACA; }
.alert-warning { background-color: var(--status-warning-bg); color: var(--status-warning-text); border: 1px solid #FDE68A; }
.alert-info { background-color: var(--status-sent-bg); color: var(--status-sent-text); border: 1px solid #BAE6FD; }

/* Filter & Search Bar */
.filter-bar {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    align-items: center;
    justify-content: space-between;
}

.filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    flex: 1;
}

/* Pagination */
.pagination-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pagination {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    list-style: none;
}

.page-item .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    background-color: #FFFFFF;
    font-weight: 600;
}

.page-item.active .page-link {
    background-color: var(--brand-primary);
    color: #FFFFFF;
    border-color: var(--brand-primary);
}

.page-item.disabled .page-link {
    color: var(--text-muted);
    pointer-events: none;
    background-color: var(--bg-page);
}

/* Dynamic Line Items Table (Quotations, Invoices, Delivery Notes) */
.items-table {
    width: 100%;
    margin-bottom: 1.25rem;
}

.items-table th {
    padding: 0.65rem 0.75rem;
}

.items-table td {
    padding: 0.5rem 0.5rem;
}

.totals-table {
    width: 100%;
    max-width: 380px;
    margin-left: auto;
    border-collapse: collapse;
}

[dir="rtl"] .totals-table {
    margin-left: 0;
    margin-right: auto;
}

.totals-table td {
    padding: 0.5rem 0.85rem;
    border-bottom: 1px solid var(--border-light);
}

.totals-table tr.grand-total td {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--brand-primary);
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
}

/* Settings Tabs */
.settings-nav {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.settings-tab {
    padding: 0.75rem 1.25rem;
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
}

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

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

/* Auth Layout */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1rem;
    background-color: var(--bg-page);
}

.auth-card {
    width: 100%;
    max-width: 370px;
    background-color: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 25px -5px rgba(15, 32, 56, 0.08), 0 8px 10px -6px rgba(15, 32, 56, 0.04);
    padding: 2.5rem 2rem 2.75rem;
    display: flex;
    flex-direction: column;
}

.auth-header {
    text-align: center;
    margin-bottom: 1.75rem;
}

.auth-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--brand-primary);
    margin-bottom: 0.85rem;
}

.auth-subtitle {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrapper input {
    padding-right: 2.75rem;
}

[dir="rtl"] .password-wrapper input {
    padding-right: 0.85rem;
    padding-left: 2.75rem;
}

.password-toggle-btn {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    border-radius: 4px;
    transition: color 0.15s ease;
}

.password-toggle-btn:hover {
    color: var(--brand-primary);
}

[dir="rtl"] .password-toggle-btn {
    right: auto;
    left: 0.75rem;
}

/* Print Styling */
@media print {
    .sidebar, .header, .btn, .filter-bar, .card-footer, .pagination-wrapper {
        display: none !important;
    }
    body, .content, .card {
        background: #FFF !important;
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }
}

/* Responsive */
@media (max-width: 900px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
    }
    [dir="rtl"] .sidebar {
        left: auto;
        right: 0;
        transform: translateX(100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-container {
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    .mobile-menu-toggle {
        display: block !important;
    }
}

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.4rem;
    color: var(--text-primary);
}

/* Suppress third-party floating scroll extension widgets */
#pr-scroll-to-top,
#pratikabu-stt,
[id*="scroll-to-top"],
[id*="scrolltotop"],
[class*="scroll-to-top"],
[class*="scrolltotop"] {
    display: none !important;
}