/**
 * FILE: frontend/css/gateway.css
 * PURPOSE: Estilos visuales del Challenge Gateway (Sin texto).
 * DEPENDENCIES: Requiere variables de frontend/css/theme.css
 */

body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--bg-muted);
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
}

.gateway-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
    padding: 2rem;
    background-color: var(--color-surface);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--color-border);
}

.gateway-health-icon svg {
    width: 64px;
    height: 64px;
    stroke: var(--color-primary);
    animation: heartbeat 2s infinite ease-in-out;
}

.gateway-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-surface-muted);
    border-top: 3px solid var(--color-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@keyframes heartbeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.1); }
    28% { transform: scale(1); }
    42% { transform: scale(1.1); }
    70% { transform: scale(1); }
    100% { transform: scale(1); }
}