/* Improved Black & White Theme with Better Contrast */

:root {
    --primary-color: #000000;
    --secondary-color: #6c757d;
    --success-color: #2d3436;
    --danger-color: #000000;
    --warning-color: #2d3436;
    --info-color: #343a40;
    --light-color: #ffffff;
    --dark-color: #000000;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* High contrast colors for better readability */
    --text-on-light: #000000;
    --text-on-dark: #ffffff;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
}

body {
    background-color: #ffffff;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #000000;
    line-height: 1.6;
}

/* Navbar customization */
.navbar {
    background-color: #ffffff !important;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
    color: #000000 !important;
    letter-spacing: -0.5px;
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: #000000 !important;
    transition: color 0.2s ease;
    padding: 0.75rem 1rem;
}

.navbar-nav .nav-link:hover {
    color: #333333 !important;
}

.navbar-toggler {
    border: 1px solid var(--gray-300);
    color: #000000;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.1);
}

/* Force white background and black text for all navbar elements */
.navbar,
.navbar *,
.navbar-nav,
.navbar-nav *,
.navbar-brand,
.navbar-collapse,
.navbar-collapse * {
    background-color: #ffffff !important;
    color: #000000 !important;
}

.navbar .dropdown-menu {
    background-color: #ffffff !important;
    border: 1px solid var(--gray-200) !important;
}

.navbar .dropdown-item {
    color: #000000 !important;
}

.navbar .dropdown-item:hover {
    background-color: #f8f9fa !important;
    color: #000000 !important;
}

/* Make navbar icons dark but visible on white background */
.navbar svg,
.navbar i,
.navbar .fa,
.navbar .fas,
.navbar .far,
.navbar .fab,
.navbar .fal {
    color: #333333 !important;
    filter: none !important;
}

/* Logo styling - keep original colors but ensure visibility */
.navbar-brand svg,
.navbar-brand img {
    filter: none !important;
    opacity: 1 !important;
}

/* Dark hamburger menu icon with better visibility */
.navbar-toggler {
    border: 1px solid #333333 !important;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(51, 51, 51, 0.25) !important;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2851, 51, 51, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
    width: 1.5em !important;
    height: 1.5em !important;
}

/* Dark text for all navbar text elements with hover effects */
.navbar .navbar-text,
.navbar .nav-link,
.navbar .navbar-brand {
    color: #333333 !important;
}

.navbar .nav-link:hover,
.navbar .navbar-brand:hover {
    color: #000000 !important;
}

/* Card styles */
.card {
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
    background-color: #ffffff;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.card-header {
    background-color: #ffffff;
    color: #000000;
    border-bottom: 1px solid var(--gray-200);
    border-radius: 8px 8px 0 0 !important;
    font-weight: 600;
    padding: 1.25rem;
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    color: #000000;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

/* Form styles */
.form-control {
    border-radius: 6px;
    border: 1px solid var(--gray-300);
    transition: all 0.2s ease;
    background-color: #ffffff;
    color: #000000;
    padding: 0.75rem;
    font-size: 0.95rem;
}

.form-control:focus {
    border-color: #000000;
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: var(--gray-500);
}

.form-label {
    font-weight: 600;
    color: #000000;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    letter-spacing: 0.025em;
}

.form-select {
    border-radius: 6px;
    border: 1px solid var(--gray-300);
    background-color: #ffffff;
    color: #000000;
}

.form-select:focus {
    border-color: #000000;
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.1);
}

/* Button styles */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    letter-spacing: 0.025em;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-outline-primary {
    background-color: transparent;
    border-color: #007bff;
    color: #007bff;
}

.btn-outline-primary:hover {
    background-color: #007bff;
    border-color: #007bff;
    color: #ffffff;
}

.btn-success {
    background-color: #28a745;
    border-color: #28a745;
    color: #ffffff;
}

.btn-success:hover {
    background-color: #218838;
    border-color: #218838;
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-outline-success {
    background-color: transparent;
    border-color: #28a745;
    color: #28a745;
}

.btn-outline-success:hover {
    background-color: #28a745;
    border-color: #28a745;
    color: #ffffff;
}

.btn-warning {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #212529;
}

.btn-warning:hover {
    background-color: #e0a800;
    border-color: #d39e00;
    color: #212529;
    transform: translateY(-1px);
}

.btn-outline-warning {
    background-color: transparent;
    border-color: #ffc107;
    color: #ffc107;
}

.btn-outline-warning:hover {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #212529;
}

.btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-outline-danger {
    background-color: transparent;
    border-color: var(--gray-700);
    color: var(--gray-700);
}

.btn-outline-danger:hover {
    background-color: var(--gray-700);
    border-color: var(--gray-700);
    color: #ffffff;
}

.btn-outline-secondary {
    background-color: transparent;
    border-color: var(--gray-400);
    color: var(--gray-600);
}

.btn-outline-secondary:hover {
    background-color: var(--gray-600);
    border-color: var(--gray-600);
    color: #ffffff;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Table styles with improved contrast */
.table {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    background-color: #ffffff;
    border: 1px solid var(--border-color);
}

.table th {
    background-color: #f8f9fa;
    color: #000000;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0.75rem;
    font-size: 0.9rem;
    letter-spacing: 0.025em;
}

.table td {
    color: #000000;
    padding: 0.875rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    background-color: #ffffff;
}

.table .fw-bold {
    color: #000000 !important;
    font-weight: 600 !important;
}

.table-dark {
    background-color: #000000;
    color: #ffffff;
}

.table-dark th {
    background-color: var(--gray-900);
    color: #ffffff;
    border-bottom: 1px solid var(--gray-700);
}

.table-dark td {
    color: var(--gray-200);
    border-bottom: 1px solid var(--gray-700);
}

/* Improved table striping and hover effects */
.table-striped tbody tr:nth-of-type(odd) {
    background-color: #f8f9fa !important;
}

.table-striped tbody tr:nth-of-type(even) {
    background-color: #ffffff !important;
}

.table-striped tbody tr td {
    color: #000000 !important;
}

.table-hover tbody tr:hover {
    background-color: #e9ecef !important;
    transition: background-color 0.2s ease;
}

.table-hover tbody tr:hover td {
    color: #000000 !important;
}

.table-responsive {
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Alert styles */
.alert {
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-weight: 500;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffeaa7;
    color: #856404;
}

.alert-dark {
    background-color: #d6d8d9;
    border-color: #c6c8ca;
    color: #1b1e21;
}

.alert-dismissible .btn-close {
    color: #000000;
    opacity: 0.7;
}

.alert-dismissible .btn-close:hover {
    opacity: 1;
}

/* Login/Register page styles */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--gray-100);
    background-image: 
        radial-gradient(circle at 25% 25%, var(--gray-200) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, var(--gray-200) 0%, transparent 50%);
}

.auth-card {
    background: #ffffff;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 3rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    width: 100%;
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
    color: #000000;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Real-time field validation styles */
.field-empty {
    background-color: var(--gray-100) !important;
    border-color: #000000 !important;
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.15) !important;
}

.field-partial {
    background-color: var(--gray-100) !important;
    border-color: var(--gray-600) !important;
    box-shadow: 0 0 0 0.2rem rgba(108, 117, 125, 0.25) !important;
}

.field-complete {
    background-color: #ffffff !important;
    border-color: var(--gray-400) !important;
    box-shadow: 0 0 0 0.2rem rgba(173, 181, 189, 0.25) !important;
}

/* Responsive design */
@media (max-width: 768px) {
    .container-fluid {
        padding: 0 15px;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .btn-group .btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.875rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .auth-card {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .auth-logo {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .table-responsive {
        font-size: 0.75rem;
    }
    
    .btn-group .btn {
        padding: 0.2rem 0.4rem;
        font-size: 0.75rem;
    }
    
    .btn-group .btn i {
        font-size: 0.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .auth-card {
        padding: 1rem;
    }
}

/* Loading spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

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

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-600);
}

/* Additional improved styles with better contrast */
.text-muted {
    color: var(--text-muted) !important;
}

.text-primary {
    color: #000000 !important;
}

.text-dark {
    color: #000000 !important;
}

.text-white {
    color: #ffffff !important;
}

.bg-light {
    background-color: var(--gray-100) !important;
    color: var(--text-on-light) !important;
}

.bg-dark {
    background-color: #000000 !important;
    color: var(--text-on-dark) !important;
}

.bg-primary {
    background-color: #000000 !important;
    color: #ffffff !important;
}

.bg-secondary {
    background-color: var(--gray-700) !important;
    color: #ffffff !important;
}

.bg-success {
    background-color: var(--gray-800) !important;
    color: #ffffff !important;
}

.bg-warning {
    background-color: var(--gray-600) !important;
    color: #ffffff !important;
}

.bg-info {
    background-color: var(--gray-700) !important;
    color: #ffffff !important;
}

.border {
    border: 1px solid var(--border-color) !important;
}

.border-top {
    border-top: 1px solid var(--border-color) !important;
}

.border-bottom {
    border-bottom: 1px solid var(--border-color) !important;
}

/* Improved table contrast */
.table-light {
    background-color: #f8f9fa !important;
    color: #000000 !important;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: #f8f9fa !important;
    color: #000000 !important;
}

/* Focus states */
*:focus {
    outline: none;
}

.form-control:focus,
.form-select:focus,
.btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.1);
}

/* Loading states */
.btn:disabled {
    background-color: var(--gray-300);
    border-color: var(--gray-300);
    color: var(--gray-500);
    cursor: not-allowed;
}

/* Hover effects */
.card:hover,
.btn:hover {
    transition: all 0.2s ease;
}

/* Typography improvements */
h1, h2, h3, h4, h5, h6 {
    color: #000000;
    font-weight: 600;
    letter-spacing: -0.025em;
}

p {
    color: var(--gray-700);
    line-height: 1.6;
}

small {
    color: var(--gray-600);
}

/* Animation classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

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

/* Print styles */
@media print {
    .navbar,
    .btn,
    .alert {
        display: none !important;
    }
    
    .container-fluid {
        padding: 0;
    }
    
    .table {
        font-size: 12px;
    }
}

/* Global rules for white text on black backgrounds */
.bg-dark,
.bg-dark *,
.card.bg-dark,
.card.bg-dark *,
.card-header.bg-dark,
.card-header.bg-dark *,
.progress-bar.bg-dark,
.progress-bar.bg-dark *,
[style*="background-color: #000"],
[style*="background-color: #000"] *,
[style*="background-color: black"],
[style*="background-color: black"] *,
[style*="background: #000"],
[style*="background: #000"] *,
[style*="background: black"],
[style*="background: black"] * {
    color: #ffffff !important;
}

/* Specific overrides for titles and headings on black backgrounds */
.bg-dark h1,
.bg-dark h2,
.bg-dark h3,
.bg-dark h4,
.bg-dark h5,
.bg-dark h6,
.card.bg-dark h1,
.card.bg-dark h2,
.card.bg-dark h3,
.card.bg-dark h4,
.card.bg-dark h5,
.card.bg-dark h6,
.card-header.bg-dark h1,
.card-header.bg-dark h2,
.card-header.bg-dark h3,
.card-header.bg-dark h4,
.card-header.bg-dark h5,
.card-header.bg-dark h6 {
    color: #ffffff !important;
}

/* Change all blue buttons to black/gray combinations */
.btn-primary {
    background-color: #000000 !important;
    border-color: #000000 !important;
    color: #ffffff !important;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: #333333 !important;
    border-color: #333333 !important;
    color: #ffffff !important;
}

.btn-info {
    background-color: #6c757d !important;
    border-color: #6c757d !important;
    color: #ffffff !important;
}

.btn-info:hover,
.btn-info:focus,
.btn-info:active {
    background-color: #5a6268 !important;
    border-color: #5a6268 !important;
    color: #ffffff !important;
}

.btn-outline-primary {
    color: #000000 !important;
    border-color: #000000 !important;
    background-color: transparent !important;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
    background-color: #000000 !important;
    border-color: #000000 !important;
    color: #ffffff !important;
}

/* Change all blue text to black */
.text-primary {
    color: #000000 !important;
}

.text-info {
    color: #000000 !important;
}

.text-blue {
    color: #000000 !important;
}

/* Force black text for any blue colored text */
a.text-primary,
a.text-info,
a.text-blue {
    color: #000000 !important;
}

a.text-primary:hover,
a.text-info:hover,
a.text-blue:hover {
    color: #333333 !important;
}