* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    color: #333;
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #0b0b0b;
    color: #fff;
    display: flex;
    justify-content: space-between;
    padding: 15px 10%;
    z-index: 1000;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: white;
    text-decoration: none;
}

.menu-toggle {
    display: none;
    cursor: pointer;
}

/* HERO */
.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.carousel .slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease;
}

.carousel .active {
    opacity: 1;
}

.hero-content {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    padding: 20px;
}

.hero h1 {
    font-size: 3rem;
}

.btn {
    margin-top: 20px;
    padding: 12px 30px;
    background: #00c6ff;
    color: white;
    text-decoration: none;
    border-radius: 30px;
}

/* SECTIONS */
section {
    padding: 90px 10%;
    text-align: center;
}

.services .service-grid {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.service-card {
    background: #f3f3f3;
    padding: 30px;
    border-radius: 12px;
    width: 300px;
    transition: .3s;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,.15);
}

.cta {
    background: linear-gradient(135deg, #0072ff, #00c6ff);
    color: white;
}

.contact form {
    max-width: 500px;
    margin: auto;
}

.contact input, textarea {
    width: 100%;
    margin: 10px 0;
    padding: 12px;
}

/* WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    text-decoration: none;
    box-shadow: 0 10px 25px rgba(0,0,0,.3);
    z-index: 2000;
}

/* Animaciones */
.hidden {
    opacity: 0;
    transform: translateY(40px);
    transition: .8s;
}

.show {
    opacity: 1;
    transform: translateY(0);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 60px;
        right: 0;
        background: #111;
        flex-direction: column;
        width: 200px;
        display: none;
    }

    .nav-links.show {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .services .service-grid {
        flex-direction: column;
    }
}

.contact button {
    width: 100%;
    margin-top: 15px;
    padding: 14px;
    border: none;
    border-radius: 30px;
    background: linear-gradient(135deg, #0072ff, #00c6ff);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all .3s ease;
    box-shadow: 0 10px 25px rgba(0,114,255,.35);
}

.contact button:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 35px rgba(0,114,255,.5);
}

.contact button:active {
    transform: scale(.97);
}

.contact input,
.contact textarea {
    border: none;
    border-radius: 10px;
    background: #f4f6f8;
    font-size: 1rem;
    transition: box-shadow .3s;
}

.contact input:focus,
.contact textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(0,114,255,.3);
}