body {
    font-family: 'Inter', sans-serif;
    background-color: #f4f6fa; /* gris claro */
    color: #1a2238; /* azul oscuro */
}
html { scroll-behavior: smooth; }
.hero-background {
    background-image: url('https://placehold.co/1920x800/1a2238/ffffff?text=Demolición+Profesional');
    background-size: cover;
    background-position: center;
    position: relative;
}
.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(26,34,56,0.7); /* azul oscuro */
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
}
.section-title {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
    color: #1a2238;
}
.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 60px;
    height: 4px;
    background-color: #eb2f2f; /* rojo */
    border-radius: 2px;
}
nav {
    background: linear-gradient(90deg, #fff 80%, #eb2f2f 100%);
}
.nav-logo {
    height: 64px; /* Aumenta el tamaño */
    width: auto;
    margin-right: 0.5rem;
    background: transparent; /* Fondo transparente */
    border-radius: 0;
}
.nav-brand {
    color: #1a2238;
    font-weight: bold;
    font-size: 1.5rem;
    letter-spacing: 1px;
}
.nav-link, .nav-link:visited {
    color: #1a2238;
}
.nav-link:hover {
    color: #eb2f2f;
}
.nav-dropdown {
    background: #fff;
    color: #1a2238;
}
.nav-dropdown a:hover {
    background: #eb2f2f;
    color: #fff;
}
footer {
    background: #1a2238;
    color: #f4f6fa;
}