/* British Airways Theme CSS */
/* Official BA Colors: #012169 (dark blue) and #FFFFFF (white) */

:root {
    --ba-blue: #012169;
    --ba-white: #ffffff;
    --ba-light-blue: #1e40af;
    --ba-gray: #f8f9fa;
    --ba-border: #dee2e6;
    --ba-text: #212529;
    --ba-success: #198754;
    --ba-warning: #ffc107;
    --ba-danger: #dc3545;
}

/* Global Body Styling */
body {
    background-color: var(--ba-white);
    color: var(--ba-text);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Navigation Bar - British Airways Blue */
.navbar {
    background-color: var(--ba-blue) !important;
    border-bottom: 3px solid var(--ba-light-blue);
}

.navbar-brand,
.navbar-nav .nav-link {
    color: var(--ba-white) !important;
    font-weight: 500;
}

.navbar-brand:hover,
.navbar-nav .nav-link:hover {
    color: #e0e7ff !important;
}

.navbar-toggler {
    border-color: var(--ba-white);
}

.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%28255, 255, 255, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Buttons - Primary uses BA Blue */
.btn-primary {
    background-color: var(--ba-blue);
    border-color: var(--ba-blue);
    color: var(--ba-white) !important;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--ba-light-blue);
    border-color: var(--ba-light-blue);
    color: var(--ba-white) !important;
}

.btn-outline-primary {
    color: var(--ba-blue);
    border-color: var(--ba-blue);
}

.btn-outline-primary:hover {
    background-color: var(--ba-blue);
    border-color: var(--ba-blue);
    color: var(--ba-white);
}

/* Cards and Containers */
.card {
    border: 1px solid var(--ba-border);
    box-shadow: 0 2px 4px rgba(1, 33, 105, 0.1);
    background-color: var(--ba-white);
}

.card-header {
    background-color: var(--ba-gray);
    border-bottom: 1px solid var(--ba-border);
    color: var(--ba-text);
    font-weight: 600;
}

/* Card Body Text */
.card-body {
    background-color: var(--ba-white);
    color: var(--ba-text);
}

/* Text Color Overrides for Better Contrast */
.text-white {
    color: var(--ba-text) !important;
}

/* Exception: Keep white text on dark buttons */
.btn-primary .text-white {
    color: var(--ba-white) !important;
}

/* Specific overrides for dark backgrounds */
.bg-primary .text-white,
.navbar .text-white,
.btn-primary .text-white,
.btn-primary,
.btn-primary .fw-bold,
.btn-primary div,
.btn-primary .text-start {
    color: var(--ba-white) !important;
}

/* Practice Hub specific text fixes */
.practice-hub h4,
.practice-hub h2,
.practice-hub .fw-bold {
    color: var(--ba-text) !important;
}

/* Aircraft text in cards should be dark for readability */
.card .text-white,
.card-body .text-white,
.card-header .text-white {
    color: var(--ba-text) !important;
}

/* Ensure headings in main content area are visible */
h1, h2, h3, h4, h5, h6 {
    color: var(--ba-text);
}

/* Override for page headers that should be dark text */
.container-fluid h2.text-white,
.container h2.text-white {
    color: var(--ba-text) !important;
}

/* Alerts with BA Theme */
.alert-info {
    background-color: rgba(1, 33, 105, 0.1);
    border-color: var(--ba-blue);
    color: var(--ba-blue);
}

.alert-success {
    background-color: rgba(25, 135, 84, 0.1);
    border-color: var(--ba-success);
    color: var(--ba-success);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-color: var(--ba-warning);
    color: #856404;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    border-color: var(--ba-danger);
    color: var(--ba-danger);
}

/* Form Elements */
.form-control:focus {
    border-color: var(--ba-blue);
    box-shadow: 0 0 0 0.2rem rgba(1, 33, 105, 0.25);
}

.form-select:focus {
    border-color: var(--ba-blue);
    box-shadow: 0 0 0 0.2rem rgba(1, 33, 105, 0.25);
}

/* Badge Styling */
.badge {
    font-weight: 500;
}

.bg-primary {
    background-color: var(--ba-blue) !important;
}

.text-primary {
    color: var(--ba-blue) !important;
}

/* Progress Bars */
.progress-bar {
    background-color: var(--ba-blue);
}

/* Links */
a {
    color: var(--ba-blue);
    text-decoration: none;
}

a:hover {
    color: var(--ba-light-blue);
    text-decoration: underline;
}

/* Tables */
.table-striped > tbody > tr:nth-of-type(odd) > td,
.table-striped > tbody > tr:nth-of-type(odd) > th {
    background-color: rgba(1, 33, 105, 0.05);
}

.table thead th {
    background-color: var(--ba-blue);
    color: var(--ba-white);
    border-color: var(--ba-blue);
}

/* Quiz Answer Options */
.quiz-option {
    border: 2px solid var(--ba-border);
    transition: all 0.2s ease;
}

.quiz-option:hover {
    border-color: var(--ba-blue);
    background-color: rgba(1, 33, 105, 0.05);
}

.quiz-option.selected {
    border-color: var(--ba-blue);
    background-color: rgba(1, 33, 105, 0.1);
}

.quiz-option.correct {
    border-color: var(--ba-success);
    background-color: rgba(25, 135, 84, 0.1);
}

.quiz-option.incorrect {
    border-color: var(--ba-danger);
    background-color: rgba(220, 53, 69, 0.1);
}

/* Navigation Pills */
.nav-pills .nav-link.active {
    background-color: var(--ba-blue);
    color: var(--ba-white);
}

.nav-pills .nav-link {
    color: var(--ba-blue);
}

.nav-pills .nav-link:hover {
    background-color: rgba(1, 33, 105, 0.1);
}

/* Dropdown Menus */
.dropdown-menu {
    border: 1px solid var(--ba-border);
    box-shadow: 0 4px 6px rgba(1, 33, 105, 0.1);
}

.dropdown-item:hover {
    background-color: rgba(1, 33, 105, 0.1);
    color: var(--ba-blue);
}

/* Footer */
.footer {
    background-color: var(--ba-gray);
    border-top: 1px solid var(--ba-border);
    color: var(--ba-text);
}

/* Responsive Design Enhancements */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

/* Loading Spinner */
.spinner-border-primary {
    color: var(--ba-blue);
}

/* Custom BA Component Styles */
.ba-header {
    background: linear-gradient(135deg, var(--ba-blue) 0%, var(--ba-light-blue) 100%);
    color: var(--ba-white);
    padding: 2rem 0;
}

.ba-feature-card {
    border-left: 4px solid var(--ba-blue);
    transition: transform 0.2s ease;
}

/* Progress Circle Text Styling */
.progress-circle-text {
    font-size: 0.8rem !important;
    font-weight: 700 !important;
    line-height: 1 !important;
    white-space: nowrap;
    z-index: 10;
    position: relative;
}

/* Ensure proper positioning of circle text containers */
.position-relative .position-absolute.top-50.start-50 {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.ba-feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(1, 33, 105, 0.15);
}

/* Achievement Badges */
.achievement-badge {
    background: linear-gradient(135deg, var(--ba-blue) 0%, var(--ba-light-blue) 100%);
    color: var(--ba-white);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 0.5rem;
}

/* Performance Charts */
.chart-container {
    background-color: var(--ba-white);
    border: 1px solid var(--ba-border);
    border-radius: 0.375rem;
    padding: 1rem;
}