/* CSS Variables */
:root {
    --primary: #0066cc;
    --secondary: #64748b;
    --accent: #f59e0b;
    --white: #ffffff;
    --black: #000000;
    --text-dark: #2c3e50;
    --text-muted: #7f8c8d;
    --border: #ddd;
    --background: #f8f9fa;
}

/* Base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background: color-mix(in srgb, var(--primary) 90%, black);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s;
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.loading-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: #666;
    font-style: italic;
}

.error-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: #dc2626;
    background: #fee2e2;
    border-radius: 8px;
    margin: 1rem 0;
}

@media (max-width: 768px) {
    .container {
        padding: 0 0.5rem;
    }
}