:root {
    --primary: #ffc800;
    --darkblue: #0f172a;
    --lightblue: #e3f2fd;
    --gold: #ffc800;
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    background-color: #f8f9fa;
}

/* NAVBAR */
#mainNav {
    background: rgba(15,23,42,0.95);
    padding: 1.2rem 0;
    transition: 0.3s;
    backdrop-filter: blur(10px);
}

#mainNav.shrink {
    padding: 0.6rem 0;
}

#mainNav .nav-link {
    color: #fff;
    font-weight: 600;
}

#mainNav .nav-link:hover {
    color: var(--primary);
}

/* HERO */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(rgba(0,0,0,.7), rgba(0,0,0,.7)),
        url("../assets/img/header-bg.jpg") center/cover no-repeat;
    color: #fff;
    text-align: center;
    padding: 0 20px;
}

.hero-content {
    padding-top: 50px; /* empuja contenido un poco hacia abajo */
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem); /* ajustado para que no tape */
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    font-size: clamp(1.3rem, 3vw, 2rem);
}

/* SECCIONES */
.section {
    padding: 140px 0;
}

.section-title {
    font-weight: 800;
    font-size: clamp(2.2rem, 4vw, 3rem);
    margin-bottom: 25px;
}

.section-subtitle {
    color: #6c757d;
    max-width: 750px;
    margin: auto;
}

.bg-darkblue .section-subtitle {
    color: rgba(255,255,255,0.8);
}

.bg-darkblue { background-color: var(--darkblue); }
.bg-lightblue { background-color: var(--lightblue); }
.text-gold { color: var(--gold); }
.text-darkblue { color: var(--darkblue); }

/* SERVICIOS */
.service-box {
    padding: 60px 40px;
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 20px 50px rgba(0,0,0,0.08);
    transition: all 0.4s ease;
    height: 100%;
}

.service-box h4 {
    margin-top: 25px;
    font-size: 1.6rem;
    font-weight: 700;
}

.service-box p {
    margin-top: 15px;
    color: #6c757d;
}

.service-box i {
    margin-bottom: 15px;
}

.service-box:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 70px rgba(0,0,0,0.15);
}

/* FOOTER */
.footer {
    padding: 90px 0;
}

/* WHATSAPP */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, #25d366, #1ebe5d);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.whatsapp-float.show {
    opacity: 1;
    pointer-events: auto;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1.2rem;
    }

    .section {
        padding: 100px 0;
    }
}