/* Custom styles for Progressive News Aggregator */

:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --info-color: #17a2b8;
}

/* Hero section styling */
.hero-section {
    padding: 2rem 0;
}

.hero-section .display-1 {
    font-size: 4rem;
}

/* Article cards */
.article-card {
    transition: transform 0.2s ease-in-out;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

/* Topic badges */
.topic-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
}

/* Stats cards */
.stats-card {
    border: none;
    border-radius: 10px;
    overflow: hidden;
}

.stats-card .card-body {
    padding: 1.5rem;
}

/* Navigation enhancements */
.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
}

/* Form enhancements */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

/* Button enhancements */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

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

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
    transform: translateY(-1px);
}

/* Card enhancements */
.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 10px;
}

.card-header {
    background-color: rgba(52, 152, 219, 0.1);
    border-bottom: 1px solid rgba(52, 152, 219, 0.2);
    font-weight: 600;
}

/* List group enhancements */
.list-group-item {
    border: none;
    border-bottom: 1px solid rgba(0,0,0,0.125);
    padding: 1rem 0;
}

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

/* Alert enhancements */
.alert {
    border: none;
    border-radius: 8px;
    font-weight: 500;
}

/* Footer */
footer {
    margin-top: auto;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section .display-1 {
        font-size: 2.5rem;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

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

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}