/* ===================================
   Modern Factory Web Styling
   Premium Bootstrap Enhancement
   =================================== */

/* CSS Variables for Theme */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --danger-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --warning-gradient: linear-gradient(135deg, #f5af19 0%, #f12711 100%);
    --dark-gradient: linear-gradient(135deg, #232526 0%, #414345 100%);
    
    --primary-color: #667eea;
    --secondary-color: #11998e;
    --accent-color: #764ba2;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #079bfd;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1), 0 6px 10px rgba(0,0,0,0.08);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.15);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
}

/* Base Styles */
html {
    font-size: 14px;
    scroll-behavior: smooth;
}

@media (min-width: 768px) {
    html {
        font-size: 15px;
    }
}

html {
    position: relative;
    min-height: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    margin-bottom: 60px;
    line-height: 1.6;
}

/* Focus States */
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--primary-color);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* ===================================
   Navigation Styles
   =================================== */
.navbar {
    background: var(--primary-gradient) !important;
    box-shadow: var(--shadow-lg);
    padding: 0.75rem 1rem;
    border: none !important;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    letter-spacing: 0.5px;
    transition: var(--transition-normal);
}

.navbar-brand:hover {
    transform: scale(1.05);
    color: white !important;
}

.navbar .nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    padding: 0.5rem 0.5rem !important;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
    margin: 0 0.15rem;
    white-space: nowrap;
}

.navbar .nav-link:hover {
    background: rgba(255,255,255,0.15);
    color: white !important;
    transform: translateY(-1px);
}

.navbar .dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-md);
    padding: 0.5rem;
    animation: fadeInDown 0.2s ease;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar .dropdown-item {
    border-radius: var(--border-radius-sm);
    padding: 0.6rem 1rem;
    transition: var(--transition-fast);
}

.navbar .dropdown-item:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    padding-right: 1.25rem;
}

.navbar-toggler {
    border: 2px solid rgba(255,255,255,0.5) !important;
    padding: 0.35rem 0.6rem;
}

.navbar-toggler-icon {
    filter: brightness(0) invert(1);
}

/* RTL Fix for navbar */
.navbar-nav {
    padding-right: 0;
}

.me-auto {
    margin-left: auto !important;
    margin-right: 0 !important;
}

/* ===================================
   Page Header Styles
   =================================== */
h1, .page-title {
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

h1::after, .page-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

/* ===================================
   Card Styles
   =================================== */
.card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    overflow: hidden;
    background: var(--bg-card);
}

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

.card-header {
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.25rem;
}

/* Search Card */
.search-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
    border-radius: var(--border-radius-lg);
    margin-bottom: 1.5rem;
}

.search-card .card-header {
    background: transparent;
    border: none;
    text-align: center;
}

.search-card h5 {
    color: var(--text-dark);
    font-weight: 600;
    margin: 0;
}

/* ===================================
   Button Styles
   =================================== */
.btn {
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    transition: var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.45);
    background: var(--primary-gradient);
}

.btn-success {
    background: var(--secondary-gradient);
    box-shadow: 0 4px 15px rgba(17, 153, 142, 0.35);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(17, 153, 142, 0.45);
    background: var(--secondary-gradient);
}

.btn-danger {
    background: var(--danger-gradient);
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.35);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.45);
    background: var(--danger-gradient);
}

.btn-warning {
    background: var(--warning-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 175, 25, 0.35);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 175, 25, 0.45);
    background: var(--warning-gradient);
    color: white;
}

.btn-secondary {
    background: var(--dark-gradient);
    box-shadow: 0 4px 15px rgba(65, 67, 69, 0.35);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(65, 67, 69, 0.45);
    background: var(--dark-gradient);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
}

.btn-info {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(23, 162, 184, 0.35);
}

.btn-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(23, 162, 184, 0.45);
    color: white;
}

/* ===================================
   Table Styles
   =================================== */
.table-responsive {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: auto;
    background: white;
    -webkit-overflow-scrolling: touch;
}

.table {
    margin-bottom: 0;
}

.table thead {
    background: var(--primary-gradient);
}

.table thead th {
    color: black;
    font-weight: 500;
    padding: 1rem 0.75rem;
    border: none;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

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

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05) !important;
}

.table tbody td {
    padding: 0.2rem 0.5rem;
    vertical-align: middle;
    border-color: var(--border-color);
}

.table-striped tbody tr:nth-of-type(odd) {
    background: rgba(0,0,0,0.02);
}

.table tfoot {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    font-weight: 600;
}

.table tfoot td, .table tfoot th {
    padding: 1rem 0.75rem;
    border-top: 2px solid var(--border-color);
}

/* Status Indicators */
.text-bg-info {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%) !important;
    color: white !important;
    padding: 0.35rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
}

.text-bg-success {
    background: var(--secondary-gradient) !important;
    color: white !important;
    padding: 0.35rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
}

/* Negative Row Styling */
.negative-row td {
    background-color: #ffe6e6 !important;
}

.zero-row td {
    background-color: #e8f5e9 !important;
}

/* ===================================
   Form Styles
   =================================== */
.form-control {
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--border-color);
    padding: 0.625rem 1rem;
    transition: var(--transition-normal);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.form-label, .col-form-label {
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 0.4rem;
}

.form-select {
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--border-color);
    padding: 0.625rem 2.5rem 0.625rem 1rem;
    transition: var(--transition-normal);
}

.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

/* ===================================
   Alert Styles
   =================================== */
.alert {
    border: none;
    border-radius: var(--border-radius-md);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
    border-right: 4px solid #28a745;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
    border-right: 4px solid #dc3545;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeeba 100%);
    color: #856404;
    border-right: 4px solid #ffc107;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    color: #0c5460;
    border-right: 4px solid #17a2b8;
}

/* ===================================
   Footer Styles
   =================================== */
.footer {
    background: var(--dark-gradient);
    color: rgba(255,255,255,0.8);
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer a:hover {
    color: white;
}

/* ===================================
   Container Adjustments
   =================================== */
.container, .container-fluid {
    padding: 0 1.5rem;
}

main.pb-3 {
    padding-bottom: 2rem !important;
}

/* ===================================
   Action Buttons Group
   =================================== */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-buttons .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

/* ===================================
   Page Container
   =================================== */
.page-container {
    background: white;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* ===================================
   Stats Cards
   =================================== */
.stats-card {
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-normal);
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stats-card .stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.stats-card .stats-label {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

/* ===================================
   Custom Scrollbar
   =================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* ===================================
   Loading Spinner
   =================================== */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* ===================================
   Responsive Adjustments
   =================================== */
@media (max-width: 768px) {
    .page-container {
        padding: 1rem;
        margin: 0 -0.5rem;
        border-radius: var(--border-radius-md);
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .table thead th {
        font-size: 0.7rem;
        padding: 0.75rem 0.5rem;
    }
    
    .table tbody td {
        font-size: 0.85rem;
        padding: 0.625rem 0.5rem;
    }
    
    .btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    
    .action-buttons {
        flex-direction: column;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .navbar, .footer, .btn, .action-buttons {
        display: none !important;
    }
    
    .table-responsive {
        box-shadow: none;
    }
    
    .page-container {
        box-shadow: none;
        padding: 0;
    }
}