/* --- 1. Reseteo y Variables Globales --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #0f172a;       /* Azul oscuro sofisticado (Slate 900) */
    --card-bg: #1e293b;        /* Tono ligeramente más claro para la tarjeta */
    --text-primary: #f8fafc;   /* Blanco suave */
    --text-secondary: #94a3b8; /* Gris azulado para textos secundarios */
    --accent-color: #3b82f6;   /* Azul vibrante corporativo */
    --accent-hover: #2563eb;   /* Azul más oscuro para hover */
    --border-color: #334155;   /* Color para bordes sutiles */
}

/* --- 2. Estilos Base --- */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

/* --- 3. Contenedor Principal (Flexbox) --- */
.construction-container {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    max-width: 520px;
    width: 100%;
    padding: 45px 35px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 
                0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

/* --- 4. Marca / Logo --- */
.brand-header {
    margin-bottom: 25px;
}

.brand-name {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.brand-tag {
    color: var(--accent-color);
}

/* --- 5. Icono Animado --- */
.icon-wrapper {
    margin-bottom: 20px;
}

.gear-icon {
    font-size: 3rem;
    display: inline-block;
    animation: spin 4s linear infinite;
}

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

/* --- 6. Tipografía --- */
h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

p strong {
    color: var(--text-primary);
}

/* --- 7. Caja de Contacto --- */
.contact-box {
    border-top: 1px solid var(--border-color);
    padding-top: 22px;
    margin-top: 22px;
}

.contact-box p {
    font-size: 0.88rem;
    margin-bottom: 12px;
}

.contact-btn {
    display: inline-block;
    background-color: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.contact-btn:hover {
    background-color: var(--accent-color);
    color: white;
}

/* --- 8. Footer --- */
.footer-note {
    margin-top: 30px;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* --- 9. Responsive Design --- */
@media (max-width: 480px) {
    .construction-container {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 1.4rem;
    }
}