/* --- 1. VARIABLES Y CONFIGURACIÓN --- */
:root {
    --elitec-blue: #00486F;
    --elitec-blue-dark: #00304a;
    --elitec-orange: #FBB042;
    --white: #ffffff;
    --text-muted: #666666;
    --transition-base: all 0.4s ease;
    --transition-slow: all 0.5s ease;
}

body {
    font-family: 'Poppins', sans-serif;
    color: #333;
}

/* --- 2. TIPOGRAFÍA --- */
h1, h2, h3, .logo, .btn-cta-submit {
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    text-transform: uppercase;
}

.logo { color: var(--elitec-blue); letter-spacing: -1px; text-decoration: none; }
.logo span { color: var(--elitec-orange); }

/* Lógica de colores en títulos */
.first-word { color: var(--elitec-blue); }
.rest-words { color: var(--elitec-orange); }

/* --- 3. COMPONENTES GLOBALES (Botones e Inputs) --- */
.btn-elitec-blue, .btn-cta-submit {
    background-color: var(--elitec-blue) !important;
    color: var(--white) !important;
    border: none !important;
    transition: var(--transition-base) !important;
}

.btn-elitec-blue { font-weight: 600; padding: 10px 25px; }

.btn-cta-submit {
    width: 100%;
    padding: 20px;
    font-size: 1.1rem;
    letter-spacing: 1.5px;
    box-shadow: 0 4px 0px var(--elitec-blue-dark);
}

.btn-elitec-blue:hover, .btn-cta-submit:hover {
    background-color: var(--elitec-orange) !important;
    transform: translateY(-3px) !important;
}

.btn-cta-submit:hover { box-shadow: 0 6px 15px rgba(251, 176, 66, 0.4); }
.btn-cta-submit:active { transform: translateY(2px); box-shadow: none; }

.custom-input {
    border: 1px solid #e0e0e0;
    border-radius: 0;
    padding: 12px;
    transition: var(--transition-base);
}

.custom-input:focus {
    border-color: var(--elitec-orange);
    box-shadow: none;
    outline: none;
}

/* --- 4. HERO & CARRUSEL --- */
.carousel-item {
    height: 100vh;
    min-height: 100%;
    position: relative;
    overflow: hidden;
}

.parallax-bg {
    position: absolute;
    inset: 0;
    height: 120%;
    background-size: cover;
    background-position: center;
    z-index: -1;
    will-change: transform;
}

.carousel-caption-custom {
    position: relative;
    z-index: 10;
    top: 50%;
    transform: translateY(-50%);
    padding-left: 8%;
}

/* --- 5. SERVICIOS (Cards) --- */
.service-card {
    background: var(--white);
    border: 1px solid #eee;
    padding: 40px;
    height: 100%;
    transition: var(--transition-base);
    cursor: pointer;
}

.service-card i { font-size: 2.5rem; transition: var(--transition-base); }
.service-card h3 { font-size: 1.25rem; color: var(--elitec-blue); transition: var(--transition-base); }
.service-card p { color: var(--text-muted); transition: var(--transition-base); }

.card-line {
    width: 40px;
    height: 4px;
    margin-bottom: 20px;
    transition: var(--transition-base);
}

/* Variaciones de Card y Hover */
.card-blue i { color: var(--elitec-blue); }
.card-blue .card-line { background: var(--elitec-orange); }

.card-orange i { color: var(--elitec-orange); }
.card-orange .card-line { background: var(--elitec-blue); }

.service-card:hover { transform: translateY(-10px); color: var(--white); }
.card-blue:hover { background: var(--elitec-blue); }
.card-orange:hover { background: var(--elitec-orange); }

.service-card:hover i, .service-card:hover h3, .service-card:hover p { color: var(--white); }
.service-card:hover .card-line { width: 80px; background: var(--white); }

/* --- 6. CONTACTO --- */
.contact-card-item {
    display: flex;
    align-items: center;
    gap: 25px;
    padding: 20px;
    transition: var(--transition-slow);
}

.contact-icon {
    min-width: 65px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--elitec-blue);
    transition: var(--transition-slow);
}

.contact-text h4 { font-size: 1rem; color: var(--elitec-blue); margin-bottom: 5px; font-weight: 700; }
.contact-text a, .contact-text p { font-size: 1.1rem; color: #444; text-decoration: none; transition: var(--transition-slow); }

.contact-card-item:hover .contact-icon, .contact-card-item:active .contact-icon { color: var(--elitec-orange); }
.contact-card-item:hover .contact-text a { color: var(--elitec-orange); }

/* --- 7. BOTÓN FLOTANTE --- */
#btnBackToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 55px;
    height: 55px;
    background-color: var(--elitec-blue);
    color: var(--white);
    border: 2px solid transparent;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-slow);
}

#btnBackToTop.show { opacity: 1; visibility: visible; transform: translateY(0); }
#btnBackToTop:hover {
    background-color: var(--elitec-orange);
    border-color: var(--elitec-orange);
    transform: scale(1.1);
}