/* Python Color Scheme */
:root {
    --primary-color: #3776ab;     /* Python blue */
    --secondary-color: #ffd43b;   /* Python yellow */
    --accent-color: #4b8bbe;      /* Lighter blue */
    --text-color: #2c3e50;
    --bg-color: #f8f9fa;
    --white: #ffffff;
    --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;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
}

/* Global Styles */
body {
.footer a {
    color: var(--secondary-color);
    font-weight: 500;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}
.footer a:hover {
    color: var(--white);
    text-decoration: underline;

/* Header Styles */
.navbar {
    background-color: var(--primary-color) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.card {
    background-color: var(--white);
    color: var(--text-color);
.navbar-brand {
    color: var(--white) !important;
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    color: var(--white) !important;
.card-body {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--secondary-color) !important;
    background-color: rgba(255, 255, 255, 0.1);
.hero {
    text-shadow: 0 1px 4px rgba(0,0,0,0.25);
    border-radius: 4px;
}

/* Button Styles */

.btn-primary {
    background-color: #00509e; /* Strong blue for contrast */
    border-color: #00509e;
    color: #fff;
}

.btn-primary:hover, .btn-primary:focus {
    background-color: #003f7d; /* Even darker blue for hover */
    border-color: #003f7d;
    color: #fff;
}

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

.btn-secondary:hover {
    background-color: #e6c200;
    border-color: #e6c200;
}

/* Card Styles */
.card {
    border: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.card-header {
    background-color: var(--primary-color);
    color: var(--white);
    border-bottom: none;
    font-weight: 600;
}

/* Form Styles */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(55, 118, 171, 0.25);
}

.form-label {
    color: var(--text-color);
    font-weight: 500;
}

/* Footer Styles */
.footer {
    background-color: var(--gray-800);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer h5 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.footer a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--secondary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* Journal Cards */
.journal-card {
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.journal-card:hover {
    border-left-color: var(--secondary-color);
}

/* Article Lists */
.article-item {
    border-bottom: 1px solid var(--gray-200);
    padding: 1.5rem 0;
}

.article-item:last-child {
    border-bottom: none;
}

.article-title {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

.article-title:hover {
    color: var(--accent-color);
}

.article-meta {
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* Accessibility Improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for better accessibility */
.btn:focus,
.form-control:focus,
.nav-link:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 0 !important;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .btn {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid var(--gray-300) !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
    }
    
    .card {
        background-color: var(--gray-800);
        color: var(--white);
    }
}

/* Animation for loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}