/* Watertech branding styles for Industrial Water Treatment Assessment */

:root {
    --watertech-primary: #1e5aa8;  /* Main blue from logo */
    --watertech-secondary: #0d4185;  /* Darker blue */
    --watertech-accent: #2980b9;    /* Lighter blue accent */
    --watertech-light: #e8f2ff;     /* Very light blue */
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --background-light: #f8f9fa;
    --border-color: #dee2e6;
    --white: #ffffff;
}

body {
    background: #e6f3ff url('background-image.jpg') center center / cover no-repeat fixed;
    background-image: 
        linear-gradient(rgba(230, 243, 255, 0.85), rgba(230, 243, 255, 0.85)),
        url('background-image.jpg'),
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            transparent 8px,
            rgba(30, 90, 168, 0.05) 8px,
            rgba(30, 90, 168, 0.05) 9px,
            transparent 9px,
            transparent 16px
        );
    background-size: cover, cover, 100% 16px;
    background-position: center, center, center;
    background-repeat: no-repeat, no-repeat, repeat;
    background-attachment: fixed, fixed, scroll;
    color: var(--text-dark);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

/* Card styling */
.card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(30, 90, 168, 0.1), 0 10px 10px -5px rgba(30, 90, 168, 0.04);
    overflow: hidden;
}

.card-header {
    background: linear-gradient(135deg, var(--watertech-primary) 0%, var(--watertech-secondary) 100%);
    border-bottom: none;
    border-radius: 0;
    padding: 2rem;
    position: relative;
}

.card-header::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(135deg, var(--watertech-primary) 0%, var(--watertech-secondary) 100%);
    clip-path: ellipse(100% 100% at 50% 0%);
}

.card-title {
    color: var(--white);
    font-weight: 700;
    font-size: 1.75rem;
    line-height: 1.2;
}

.card-subtitle {
    color: var(--watertech-light);
    opacity: 0.9;
}

.card-body {
    padding: 2.5rem;
}

/* Watertech logo styling */
.watertech-logo {
    opacity: 0.95;
    transition: opacity 0.3s ease;
}

.watertech-logo:hover {
    opacity: 1;
}

/* Admin access button */
.admin-access-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.admin-access-btn:hover {
    opacity: 1;
}

.admin-access-btn .btn {
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--watertech-primary);
    color: var(--watertech-primary);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.admin-access-btn .btn:hover {
    background: var(--watertech-primary);
    color: white;
    transform: translateY(-1px);
}

/* Responsive logo sizing */
@media (max-width: 768px) {
    .watertech-logo {
        height: 40px !important;
    }
    
    .card-header .d-flex {
        flex-direction: column;
        text-align: center !important;
    }
    
    .card-header .text-end {
        text-align: center !important;
        margin-top: 1rem;
    }
    
    .admin-access-btn {
        bottom: 10px;
        right: 10px;
    }
}

/* Form styling */
.form-label {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.form-control, .form-select {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    color: var(--text-dark);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    background-color: var(--white);
    border-color: var(--watertech-primary);
    box-shadow: 0 0 0 0.25rem rgba(30, 90, 168, 0.15);
    color: var(--text-dark);
    transform: translateY(-1px);
}

.form-control::placeholder {
    color: var(--text-light);
}

/* Ensure option elements in select dropdowns are visible */
.form-select option {
    background-color: var(--white);
    color: var(--text-dark);
}

/* Question styling */
.question-group {
    background-color: var(--white);
    border-radius: 16px;
    padding: 2rem;
    border: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(30, 90, 168, 0.05);
}

.question-title {
    color: var(--watertech-primary);
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    border-left: 4px solid var(--watertech-primary);
    padding-left: 1rem;
}

.form-check {
    margin-bottom: 1rem;
    padding-left: 2.5rem;
}

.form-check-input {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    margin-top: 0.3rem;
    width: 1.25rem;
    height: 1.25rem;
}

.form-check-input:checked {
    background-color: var(--watertech-primary);
    border-color: var(--watertech-primary);
}

.form-check-input:focus {
    box-shadow: 0 0 0 0.25rem rgba(30, 90, 168, 0.15);
}

.form-check-label {
    color: var(--text-dark);
    line-height: 1.6;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
}

/* Button styling */
.btn-primary {
    background: linear-gradient(135deg, var(--watertech-primary) 0%, var(--watertech-secondary) 100%);
    border: none;
    font-weight: 700;
    padding: 1rem 2.5rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.95rem;
    color: white !important;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #87ceeb 0%, #b3d9ff 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(30, 90, 168, 0.3);
    color: white !important;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #22c55e 100%);
    border: none;
    font-weight: 600;
    border-radius: 12px;
}

.btn-outline-secondary {
    color: var(--text-dark);
    border-color: var(--border-color);
    border-width: 2px;
    border-radius: 12px;
    font-weight: 600;
}

.btn-outline-secondary:hover {
    background-color: var(--watertech-light);
    border-color: var(--watertech-primary);
    color: var(--watertech-primary);
}

/* Alert styling */
.alert-success {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1) 0%, rgba(34, 197, 94, 0.05) 100%);
    border: 2px solid var(--success-color);
    color: var(--success-color);
    border-radius: 12px;
    font-weight: 600;
}

.alert-danger, .alert-error {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(248, 113, 113, 0.05) 100%);
    border: 2px solid var(--danger-color);
    color: var(--danger-color);
    border-radius: 12px;
    font-weight: 600;
}

.alert-info {
    background: linear-gradient(135deg, rgba(30, 90, 168, 0.1) 0%, rgba(41, 128, 185, 0.05) 100%);
    border: 2px solid var(--watertech-primary);
    color: var(--watertech-primary);
    border-radius: 12px;
    font-weight: 600;
}

/* Table styling */
.table {
    color: var(--light-color);
    background-color: transparent;
}

.table-dark {
    background-color: var(--darker-color);
}

.table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: rgba(255, 255, 255, 0.02);
}

.table-hover > tbody > tr:hover > td {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Table headers should be clearly visible */
.table th {
    color: var(--light-color) !important;
    font-weight: 600;
    border-bottom: 2px solid #475569;
    background-color: var(--dark-color);
}

.table td {
    border-color: #475569;
    color: var(--light-color) !important;
    background-color: transparent;
}

/* Ensure all table text is visible */
.table tbody tr td {
    color: var(--light-color) !important;
}

.table tbody tr td * {
    color: inherit !important;
}

/* Override any dark text from Bootstrap */
.table tbody tr td .text-dark {
    color: var(--light-color) !important;
}

/* Table links should be more visible */
.table a {
    color: #60a5fa !important;
    text-decoration: none;
}

.table a:hover {
    color: #93c5fd !important;
    text-decoration: underline;
}

/* Ensure small text in tables is visible */
.table small, .table .small {
    color: var(--secondary-light) !important;
}

/* Force all table content to be visible */
.table-responsive .table tbody tr {
    background-color: transparent !important;
}

.table-responsive .table tbody tr td {
    background-color: transparent !important;
    color: var(--light-color) !important;
}

/* Ensure strong/bold text in tables is visible */
.table strong {
    color: var(--light-color) !important;
    font-weight: 600;
}

/* Table container background */
.table-responsive {
    background-color: transparent;
}

/* Override any inherited dark colors */
.table tr {
    background-color: transparent !important;
}

.table tr:nth-child(odd) {
    background-color: rgba(255, 255, 255, 0.02) !important;
}

.table tr:hover {
    background-color: rgba(255, 255, 255, 0.05) !important;
}

/* Score badges */
.score-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
}

.score-badge.pass {
    background-color: rgba(5, 150, 105, 0.2);
    color: #10b981;
    border: 1px solid var(--success-color);
}

.score-badge.fail {
    background-color: rgba(220, 38, 38, 0.2);
    color: #f87171;
    border: 1px solid var(--danger-color);
}

/* Badge styling */
.badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
}

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

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

/* Navbar styling */
.navbar-dark {
    background-color: var(--darker-color) !important;
    border-bottom: 1px solid #334155;
}

.navbar-brand {
    font-weight: 600;
    color: var(--light-color) !important;
}

.nav-link {
    color: var(--secondary-light) !important;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--light-color) !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container, .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body, .card-header {
        padding: 1rem;
    }
    
    .question-group {
        padding: 1rem;
    }
    
    .btn-lg {
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
    }
}

/* Sticky table header */
.sticky-top {
    position: sticky;
    top: 0;
    z-index: 1020;
}

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

::-webkit-scrollbar-track {
    background: var(--dark-color);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-light);
    border-radius: 4px;
}

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

/* Loading states */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Focus styles for accessibility */
.form-control:focus,
.btn:focus,
.form-check-input:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
}

/* Text colors */
.text-muted {
    color: var(--muted-color) !important;
}

/* Improved readability for various text elements */
.text-secondary {
    color: var(--secondary-light) !important;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--light-color);
}

p {
    color: var(--light-color);
    opacity: 0.9;
}

/* Border utilities */
.border {
    border-color: #475569 !important;
}

/* Background utilities */
.bg-dark {
    background-color: var(--dark-color) !important;
}

/* Alert improvements for better contrast */
.alert {
    border-radius: 8px;
}

.alert-success {
    background-color: rgba(5, 150, 105, 0.15);
    border-color: var(--success-color);
    color: #34d399;
}

.alert-danger {
    background-color: rgba(220, 38, 38, 0.15);
    border-color: var(--danger-color);
    color: #fca5a5;
}

.alert-info {
    background-color: rgba(37, 99, 235, 0.15);
    border-color: var(--primary-color);
    color: #93c5fd;
}

/* Link styling improvements */
a {
    color: #60a5fa;
    text-decoration: none;
}

a:hover {
    color: #93c5fd;
    text-decoration: underline;
}

/* Improve visibility of small text elements */
small, .small {
    color: var(--secondary-light);
}

/* Badge improvements */
.badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
}

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

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

.badge.bg-primary {
    background-color: var(--primary-color) !important;
    color: white;
}

.badge.bg-secondary {
    background-color: var(--secondary-color) !important;
    color: var(--darker-color);
}

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

.badge.bg-info {
    background-color: #0ea5e9 !important;
    color: white;
}

/* Ensure text inside badges is always visible */
.badge {
    color: white !important;
}

.badge.text-dark {
    color: var(--darker-color) !important;
}

/* Card content text should always be visible */
.card-body {
    color: var(--light-color);
}

.card-body * {
    color: inherit;
}

.card-body strong {
    color: var(--light-color) !important;
    font-weight: 600;
}

.card-body .text-muted {
    color: var(--muted-color) !important;
}

/* Force visibility of all text content in cards */
.card .col-md-3, .card .col {
    color: var(--light-color);
}

.card .row div {
    color: var(--light-color);
}