/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Header styles */
header {
    background: linear-gradient(135deg, #4a90e2 0%, #7b68ee 50%, #ff6b6b 100%);
    color: white;
    text-align: center;
    padding: 3rem 1rem;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Main content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Loading spinner */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 1rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #4a90e2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Apps grid */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* App card styles */
.app-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Colorful card variations */
.app-card.color-coral {
    border-left: 4px solid #ff6b6b;
}

.app-card.color-coral .app-metadata {
    border-left: 3px solid #ff6b6b;
}

.app-card.color-coral .app-link {
    background: #ff6b6b;
}

.app-card.color-coral .app-link:hover {
    background: #ff5252;
}

.app-card.color-orange {
    border-left: 4px solid #ff9500;
}

.app-card.color-orange .app-metadata {
    border-left: 3px solid #ff9500;
}

.app-card.color-orange .app-link {
    background: #ff9500;
}

.app-card.color-orange .app-link:hover {
    background: #e6850e;
}

.app-card.color-amber {
    border-left: 4px solid #ffc107;
}

.app-card.color-amber .app-metadata {
    border-left: 3px solid #ffc107;
}

.app-card.color-amber .app-link {
    background: #ffc107;
}

.app-card.color-amber .app-link:hover {
    background: #e0a800;
}

.app-card.color-emerald {
    border-left: 4px solid #10b981;
}

.app-card.color-emerald .app-metadata {
    border-left: 3px solid #10b981;
}

.app-card.color-emerald .app-link {
    background: #10b981;
}

.app-card.color-emerald .app-link:hover {
    background: #059669;
}

.app-card.color-blue {
    border-left: 4px solid #3b82f6;
}

.app-card.color-blue .app-metadata {
    border-left: 3px solid #3b82f6;
}

.app-card.color-blue .app-link {
    background: #3b82f6;
}

.app-card.color-blue .app-link:hover {
    background: #2563eb;
}

.app-card.color-indigo {
    border-left: 4px solid #6366f1;
}

.app-card.color-indigo .app-metadata {
    border-left: 3px solid #6366f1;
}

.app-card.color-indigo .app-link {
    background: #6366f1;
}

.app-card.color-indigo .app-link:hover {
    background: #4f46e5;
}

.app-card.color-pink {
    border-left: 4px solid #ec4899;
}

.app-card.color-pink .app-metadata {
    border-left: 3px solid #ec4899;
}

.app-card.color-pink .app-link {
    background: #ec4899;
}

.app-card.color-pink .app-link:hover {
    background: #db2777;
}

.app-card.color-teal {
    border-left: 4px solid #14b8a6;
}

.app-card.color-teal .app-metadata {
    border-left: 3px solid #14b8a6;
}

.app-card.color-teal .app-link {
    background: #14b8a6;
}

.app-card.color-teal .app-link:hover {
    background: #0d9488;
}

.app-screenshot {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, #f0f0f0 25%, #e0e0e0 25%, #e0e0e0 50%, #f0f0f0 50%, #f0f0f0 75%, #e0e0e0 75%);
    background-size: 20px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.app-screenshot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.app-content {
    padding: 1.5rem;
}

.app-title-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.app-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
}

.electron-icon {
    font-size: 1.1rem;
    color: #ffd700;
    cursor: help;
}

.app-organization {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: #e3f2fd;
    color: #1565c0;
    padding: 0.3rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.8rem;
    border: 1px solid #bbdefb;
}

.org-icon {
    font-size: 0.8rem;
}

.app-description {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.app-metadata {
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: #f8f9fa;
    border-radius: 6px;
}

.app-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: #555;
}

.app-meta-item:last-child {
    margin-bottom: 0;
}

.meta-icon {
    font-size: 0.9rem;
}

.app-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.app-tag {
    background: #e9ecef;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    color: #495057;
}

.app-links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.app-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.app-link.secondary {
    background: #6c757d;
}

.app-link.secondary:hover {
    background: #5a6268;
}

/* Error message */
.error-message {
    text-align: center;
    padding: 3rem 1rem;
    color: #dc3545;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 8px;
    margin: 2rem 0;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 3rem;
}

footer p {
    margin-bottom: 0.5rem;
}

footer p:last-child {
    margin-bottom: 0;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .app-content {
        padding: 1rem;
    }
    
    .app-links {
        flex-direction: column;
    }
    
    .app-link {
        text-align: center;
        justify-content: center;
    }
}

/* Utility classes */
.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;
}