/* Natural Color Palette Theme with Data Attribute Support */
:root {
    /* Base Natural Palette Colors for Light Theme */
    --primary-dark: #001137;     /* Darker navy blue for better contrast */
    --primary-blue: #4c6ef5;     /* Adjusted blue for better readability */
    --background-light: #ffffff; /* Pure white for maximum contrast */
    --background-cream: #f8f9fa;  /* Lighter cream for better contrast */
    
    /* Relative Color Variables for Accessibility */
    --primary-color: var(--primary-dark);
    --primary-hover: light-dark(#002a86, #5c7cfa); /* Relative color for hover states */
    --secondary-color: var(--primary-blue);
    --secondary-hover: light-dark(#364fc7, #748ffc); /* Relative hover color */
    
    /* High Contrast Text Colors */
    --text-primary: #1a1a1a;     /* Near black for maximum readability */
    --text-secondary: #4a5568;   /* Darker secondary text */
    --text-light: #6b7280;      /* Improved contrast for light text */
    --text-on-primary: #ffffff; /* White text on primary colors */
    
    /* Background Colors with Better Contrast */
    --background-color: var(--background-light);
    --surface-color: var(--background-cream);
    --surface-elevated: #f1f3f4; /* Slightly darker for elevation */
    
    /* Accessible Status Colors */
    --success-color: #16a34a;    /* Darker green for better contrast */
    --success-bg: color-mix(in srgb, #16a34a 10%, transparent); /* Relative background */
    --warning-color: #d97706;    /* Improved orange for accessibility */
    --warning-bg: color-mix(in srgb, #d97706 10%, transparent);
    --danger-color: #dc2626;     /* Better red contrast */
    --danger-bg: color-mix(in srgb, #dc2626 10%, transparent);
    --info-color: var(--primary-blue);
    --info-bg: color-mix(in srgb, var(--primary-blue) 10%, transparent);
    
    /* Focus and Interaction Colors */
    --focus-color: #2563eb;      /* High contrast focus color */
    --focus-outline: color-mix(in srgb, #2563eb 25%, transparent);
    --border-color: color-mix(in srgb, var(--text-primary) 20%, transparent);
    --border-hover: color-mix(in srgb, var(--primary-blue) 40%, transparent);
    
    /* Enhanced Color Contrast Ratios */
    color-scheme: light dark; /* Support for system color scheme */
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --primary-color: #5c7cfa;
    --primary-hover: #748ffc;
    --secondary-color: #6c5ce7;
    --secondary-hover: #a29bfe;
    --background-color: #1a1b1e;
    --background-light: #1a1b1e;
    --surface-color: #25262b;
    --surface-elevated: #2c2e33;
    --background-cream: #25262b;
    --text-primary: #ffffff;
    --text-secondary: #c1c2c5;
    --text-light: #9c9d9f;
    --text-on-primary: #ffffff;
    --border-color: #373a40;
    --border-hover: #495057;
    --focus-color: #74c0fc;
    --focus-outline: color-mix(in srgb, #74c0fc 25%, transparent);
    
    /* Dark theme status colors */
    --success-color: #51cf66;
    --success-bg: color-mix(in srgb, #51cf66 15%, transparent);
    --warning-color: #ffd43b;
    --warning-bg: color-mix(in srgb, #ffd43b 15%, transparent);
    --danger-color: #ff6b6b;
    --danger-bg: color-mix(in srgb, #ff6b6b 15%, transparent);
    --info-color: #74c0fc;
    --info-bg: color-mix(in srgb, #74c0fc 15%, transparent);
    
    color-scheme: dark;
}

/* Dark theme specific adjustments */
[data-theme="dark"] .card {
    box-shadow: 0 4px 6px color-mix(in srgb, black 40%, transparent);
}

[data-theme="dark"] .card:hover {
    box-shadow: 0 8px 25px color-mix(in srgb, black 60%, transparent);
}

[data-theme="dark"] .dropdown-menu {
    box-shadow: 0 8px 25px color-mix(in srgb, black 50%, transparent);
}

[data-theme="dark"] .modal-content {
    box-shadow: 0 10px 30px color-mix(in srgb, black 70%, transparent);
}

.btn-sm {
    font-size: 0.800rem;
}

/* Theme Toggle Button Styles */
.theme-toggle-container {
    position: relative;
    display: inline-block;
}

.theme-toggle {
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.25rem;
}

.theme-toggle:hover,
.theme-toggle:focus {
    background-color: var(--surface-elevated);
    border-color: var(--border-hover);
    color: var(--primary-color);
    outline: 2px solid var(--focus-outline);
    outline-offset: 2px;
}

.theme-dropdown-menu {
    min-width: 200px;
    padding: 0.5rem 0;
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.theme-option:hover,
.theme-option:focus {
    background-color: var(--surface-elevated);
    color: var(--text-primary);
}

.theme-option.active {
    background-color: var(--primary-color);
    color: var(--text-on-primary);
}

.theme-option .theme-icon {
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-check {
    color: var(--text-on-primary);
    font-weight: bold;
}

/* Smooth theme transition */
html {
    transition: background-color 0.3s ease, color 0.3s ease;
}

*, *::before, *::after {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

/* Base Body Styles with Improved Accessibility */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    margin-top: 80px;
    line-height: 1.6; /* Improved readability */
    font-size: 16px;  /* Minimum readable font size */
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --text-primary: #000000;
        --background-color: #ffffff;
        --border-color: #000000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Navbar spacer */
.navbar-spacer {
    margin-top: 80px;
}

/* Navigation Styles with Enhanced Accessibility */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
    box-shadow: 0 4px 6px color-mix(in srgb, var(--primary-color) 20%, transparent);
    border: none;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--text-on-primary) !important;
    text-decoration: none;
}

.navbar-brand:hover,
.navbar-brand:focus {
    color: var(--text-on-primary) !important;
    text-decoration: underline;
}

.navbar-nav .nav-link {
    color: var(--text-on-primary) !important;
    font-weight: 500;
}

.navbar .btn-outline-light {
    border-color: var(--text-on-primary);
    color: var(--text-on-primary);
    border-width: 2px; /* Thicker border for better visibility */
}

.navbar .btn-outline-light:hover,
.navbar .btn-outline-light:focus {
    background-color: var(--text-on-primary);
    color: var(--primary-color);
    border-color: var(--text-on-primary);
}

.navbar .btn-light {
    background-color: var(--text-on-primary);
    color: var(--primary-color);
    border: 2px solid var(--text-on-primary);
    font-weight: 600;
}

.navbar .btn-light:hover,
.navbar .btn-light:focus {
    background-color: var(--surface-elevated);
    color: var(--primary-color);
    border-color: var(--surface-elevated);
}

/* Dropdown Styles with Improved Accessibility */
.dropdown-menu {
    background-color: var(--background-color);
    border: 2px solid var(--border-color);
    box-shadow: 0 8px 25px color-mix(in srgb, var(--text-primary) 15%, transparent);
    border-radius: 8px;
}

.dropdown-item {
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-weight: 500;
    border-radius: 4px;
    margin: 0.25rem;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--surface-elevated);
    color: var(--text-primary);
    outline: 2px solid var(--focus-color);
    outline-offset: -2px;
}

.dropdown-item:active {
    background-color: var(--primary-color);
    color: var(--text-on-primary);
}

.dropdown-divider {
    border-color: var(--border-color);
    margin: 0.5rem 0;
}

/* Button Styles with Enhanced Accessibility */
.btn {
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    font-weight: 600;
    border-width: 2px;
    font-size: 1rem;
    line-height: 1.5;
    min-height: 44px; /* Minimum touch target size */
    min-width: 44px;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--text-on-primary);
    transform: translateY(-1px);
    outline: 2px solid var(--focus-outline);
    outline-offset: 2px;
}

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-on-primary);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--secondary-hover);
    border-color: var(--secondary-hover);
    color: var(--text-on-primary);
    transform: translateY(-1px);
    outline: 2px solid var(--focus-outline);
    outline-offset: 2px;
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: var(--text-on-primary);
}

.btn-success:hover,
.btn-success:focus {
    background-color: color-mix(in srgb, var(--success-color) 85%, black);
    border-color: color-mix(in srgb, var(--success-color) 85%, black);
    color: var(--text-on-primary);
}

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    color: var(--text-on-primary);
}

.btn-warning:hover,
.btn-warning:focus {
    background-color: color-mix(in srgb, var(--warning-color) 85%, black);
    border-color: color-mix(in srgb, var(--warning-color) 85%, black);
    color: var(--text-on-primary);
}

.btn-danger {
    background-color: var(--danger-color);
    border-color: var(--danger-color);
    color: var(--text-on-primary);
}

.btn-danger:hover,
.btn-danger:focus {
    background-color: color-mix(in srgb, var(--danger-color) 85%, black);
    border-color: color-mix(in srgb, var(--danger-color) 85%, black);
    color: var(--text-on-primary);
}

.btn-info {
    background-color: var(--info-color);
    border-color: var(--info-color);
    color: var(--text-on-primary);
}

.btn-info:hover,
.btn-info:focus {
    background-color: color-mix(in srgb, var(--info-color) 85%, black);
    border-color: color-mix(in srgb, var(--info-color) 85%, black);
    color: var(--text-on-primary);
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-on-primary);
    outline: 2px solid var(--focus-outline);
    outline-offset: 2px;
}

/* Card Styles with Improved Accessibility */
.card {
    background-color: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 4px 6px color-mix(in srgb, var(--text-primary) 10%, transparent);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px color-mix(in srgb, var(--text-primary) 15%, transparent);
    border-color: var(--border-hover);
}

.card:focus-within {
    outline: 3px solid var(--focus-color);
    outline-offset: 2px;
}

.card-header {
    background-color: var(--surface-color);
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 700;
    padding: 1rem;
    font-size: 1.125rem;
}

.card-body {
    background-color: var(--background-color);
    color: var(--text-primary);
    padding: 1.25rem;
    line-height: 1.6;
}

.card-title {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.card-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* List Group Styles with Better Accessibility */
.list-group-item {
    background-color: var(--background-color);
    border-color: var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.list-group-item:hover,
.list-group-item:focus {
    background-color: var(--surface-elevated);
    border-color: var(--border-hover);
    outline: 2px solid var(--focus-color);
    outline-offset: -2px;
}

.list-group-item:first-child {
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.list-group-item:last-child {
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
}

.list-group-item-action {
    cursor: pointer;
}

.list-group-item-action:active {
    background-color: var(--surface-elevated);
}

/* Alert Styles with Better Accessibility */
.alert {
    border-radius: 8px;
    border: 2px solid;
    padding: 1rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.alert-warning {
    background-color: var(--warning-bg);
    color: color-mix(in srgb, var(--warning-color) 85%, black);
    border-color: var(--warning-color);
    border-left-width: 6px;
}

.alert-success {
    background-color: var(--success-bg);
    color: color-mix(in srgb, var(--success-color) 85%, black);
    border-color: var(--success-color);
    border-left-width: 6px;
}

.alert-danger {
    background-color: var(--danger-bg);
    color: color-mix(in srgb, var(--danger-color) 85%, black);
    border-color: var(--danger-color);
    border-left-width: 6px;
}

.alert-info {
    background-color: var(--info-bg);
    color: color-mix(in srgb, var(--info-color) 85%, black);
    border-color: var(--info-color);
    border-left-width: 6px;
}

/* Background Styles with Enhanced Contrast */
.bg-light {
    background-color: var(--surface-color) !important;
    color: var(--text-primary) !important;
}

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

.bg-secondary {
    background-color: var(--secondary-color) !important;
    color: var(--text-on-primary) !important;
}

/* Text Styles with Better Contrast */
.text-primary {
    color: var(--primary-color) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

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

/* Link Styles for Better Accessibility */
a {
    color: var(--primary-color);
    text-decoration: underline;
    text-decoration-color: color-mix(in srgb, var(--primary-color) 50%, transparent);
    transition: all 0.2s ease;
}

a:hover,
a:focus {
    color: var(--primary-hover);
    text-decoration-color: var(--primary-hover);
    text-decoration-thickness: 2px;
}

/* High Contrast Text for Better Readability */
.text-high-contrast {
    color: var(--text-primary);
    font-weight: 600;
}

/* Accessible Badge Styles */
.badge {
    border-radius: 6px;
    font-weight: 600;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid;
}

.bg-danger {
    background-color: var(--danger-color) !important;
    color: var(--text-on-primary) !important;
    border-color: color-mix(in srgb, var(--danger-color) 85%, black);
}

.bg-success {
    background-color: var(--success-color) !important;
    color: var(--text-on-primary) !important;
    border-color: color-mix(in srgb, var(--success-color) 85%, black);
}

.bg-warning {
    background-color: var(--warning-color) !important;
    color: var(--text-on-primary) !important;
    border-color: color-mix(in srgb, var(--warning-color) 85%, black);
}

.bg-info {
    background-color: var(--info-color) !important;
    color: var(--text-on-primary) !important;
    border-color: color-mix(in srgb, var(--info-color) 85%, black);
}

/* Form Styles with Enhanced Accessibility */
.form-control,
.form-select {
    background-color: var(--background-color);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    min-height: 44px; /* Minimum touch target */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--background-color);
    border-color: var(--focus-color);
    box-shadow: 0 0 0 3px var(--focus-outline);
    color: var(--text-primary);
    outline: none;
}

/* Only show validation styles when field has been interacted with */
.form-control:invalid:not(:focus):not(:placeholder-shown),
.form-select:invalid:not(:focus) {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger-color) 25%, transparent);
}

/* Valid field styling when user has interacted */
.form-control:valid:not(:placeholder-shown),
.form-select:valid {
    border-color: var(--success-color);
}

/* Error styling for fields with explicit error class */
.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger-color) 25%, transparent);
}

/* Success styling for fields with explicit success class */
.form-control.is-valid,
.form-select.is-valid {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--success-color) 25%, transparent);
}

.form-label {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

/* Form validation feedback text */
.invalid-feedback {
    display: none;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--danger-color);
    font-weight: 500;
}

.valid-feedback {
    display: none;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--success-color);
    font-weight: 500;
}

/* Show feedback when field has validation state */
.form-control.is-invalid ~ .invalid-feedback,
.form-select.is-invalid ~ .invalid-feedback {
    display: block;
}

.form-control.is-valid ~ .valid-feedback,
.form-select.is-valid ~ .valid-feedback {
    display: block;
}

/* Required field indicator */
.form-label.required::after {
    content: " *";
    color: var(--danger-color);
    font-weight: bold;
}

/* Form group spacing */
.form-group,
.mb-3 {
    margin-bottom: 1.5rem;
}

/* Floating label support */
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: var(--focus-color);
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* Enhanced Focus Styles for Better Accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus,
.dropdown-item:focus,
a:focus {
    outline: 3px solid var(--focus-color);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Skip Links for Screen Readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--text-on-primary);
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 9999;
}

.skip-link:focus {
    top: 6px;
}

/* Modal Styles with Enhanced Accessibility */
.modal-content {
    background-color: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 30px color-mix(in srgb, var(--text-primary) 20%, transparent);
}

.modal-header {
    background-color: var(--surface-color);
    border-bottom: 2px solid var(--border-color);
    border-radius: 12px 12px 0 0;
    color: var(--text-primary);
    font-weight: 700;
}

.modal-body {
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.modal-footer {
    background-color: var(--surface-color);
    border-top: 2px solid var(--border-color);
    border-radius: 0 0 12px 12px;
}

.modal-title {
    color: var(--text-primary);
    font-weight: 700;
}

/* Session Test Page Specific Styles */
#sessionStatus {
    background-color: var(--surface-color) !important;
    border: 1px solid rgba(114, 137, 244, 0.2);
    border-radius: 8px;
}

#sessionManagerInfo {
    color: var(--text-secondary);
}

#activityLog,
.activity-log {
    background-color: var(--surface-color);
    border-radius: 6px;
    padding: 0.5rem;
    max-height: 200px;
    overflow-y: auto;
}

#activityLog .small,
.activity-log .small {
    color: var(--text-light);
}

/* Badge Styles */
.badge {
    border-radius: 6px;
}

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

/* Room Image Styles */
.room-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    border: 2px solid rgba(114, 137, 244, 0.1);
}

/* Container Styles */
.container {
    max-width: 1200px;
    padding: 0 1rem;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

/* Custom scrollbar for activity log */
#activityLog::-webkit-scrollbar,
.activity-log::-webkit-scrollbar {
    width: 6px;
}

#activityLog::-webkit-scrollbar-track,
.activity-log::-webkit-scrollbar-track {
    background: rgba(114, 137, 244, 0.1);
    border-radius: 3px;
}

#activityLog::-webkit-scrollbar-thumb,
.activity-log::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 3px;
}

#activityLog::-webkit-scrollbar-thumb:hover,
.activity-log::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Animation for hoverable elements with reduced motion support */
@media (prefers-reduced-motion: no-preference) {
    .btn:hover,
    .card:hover,
    .dropdown-item:hover {
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
}

/* Enhanced Focus styles for accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: 3px solid var(--focus-color);
    outline-offset: 2px;
}

/* Print Styles for Accessibility */
@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    .btn,
    .card,
    .alert {
        border: 1px solid black !important;
    }
    
    .navbar,
    .dropdown-menu,
    .theme-toggle-container {
        display: none !important;
    }
}