:root {
    --azul-main: #003366;
    --azul-profundo: #001f3f;
    --naranja-action: #FF8C00;
    --blanco: #ffffff;
    --gris-fondo: #f1f5f9;
    --texto: #334155;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--gris-fondo);
    margin: 0;
    color: var(--texto);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Nav */
header {
    background: var(--blanco);
    padding: 20px 0;
    border-bottom: 5px solid var(--azul-main);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.main-nav {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    width: 100%;
    justify-content: center;
}

.nav-link {
    background: var(--azul-main);
    color: white;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.3s;
}

.nav-link:hover {
    background: var(--naranja-action);
    transform: translateY(-2px);
}

/* Cards de Servicios Mejoradas */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: var(--blanco);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    transition: 0.4s;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: 25px;
}

.btn-card {
    margin-top: auto;
    background: var(--naranja-action);
    color: white;
    text-align: center;
    padding: 15px;
    border-radius: 10px;
    font-weight: bold;
    text-decoration: none;
}

/* Footer adaptable */
footer {
    background: var(--azul-profundo);
    color: white;
    padding: 60px 0;
    margin-top: 80px;
}