:root {
    --primary-color: #FFC107; /* Amarillo construcción */
    --secondary-color: #212529; /* Gris oscuro / Negro */
    --accent-color: #FAB005; /* Amarillo más oscuro para hover */
    --text-color: #333;
    --light-bg: #f8f9fa;
}

body {
    font-family: 'Roboto', sans-serif;
    color: var(--text-color);
}

/* Header & Navbar */
.navbar-brand {
    font-weight: 700;
    color: var(--secondary-color) !important;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--secondary-color) !important;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.bg-yaco {
    background-color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 150px 0;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.btn-yaco {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    font-weight: 600;
    padding: 10px 30px;
    border: none;
    transition: all 0.3s;
}

.btn-yaco:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Servicios Cards */
.service-card {
    transition: transform 0.3s;
    height: 100%;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 50px 0 20px;
}

footer h5 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

footer a {
    color: #ccc;
    text-decoration: none;
}

footer a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.9rem;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    color: #FFF;
    transform: scale(1.1);
}