/* --- WhatsApp Button Styles --- */
.whatsapp-button {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 1000;
    background: linear-gradient(135deg, #25d366, #20bf55);
    border-radius: 50%;
    padding: 18px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
        transform: scale(1.05);
    }
    100% {
        box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    }
}

.whatsapp-button:hover { 
    transform: scale(1.15);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

.whatsapp-button img {
    filter: brightness(1.1);
}

/* --- Quote Form Improvements --- */
.quote-section {
    background: var(--color-gris-claro);
    padding: 4rem 0;
    position: relative;
}

.quote-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradiente-primario);
}

.quote-form {
    background: var(--color-tarjeta-fondo);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--sombra-tarjeta);
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid var(--color-borde);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-primario);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-borde);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--color-blanco);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primario);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

#price-estimate {
    background: var(--gradiente-primario);
    color: var(--color-blanco);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    margin: 1.5rem 0;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
}

/* --- Testimonials Improvements --- */
.testimonials {
    background: var(--color-tarjeta-fondo);
    position: relative;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradiente-secundario);
}

.testimonial-card {
    text-align: center;
    position: relative;
    padding: 2.5rem 2rem;
}

.testimonial-card img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    border: 4px solid var(--color-secundario);
}

.testimonial-card .author {
    font-weight: 600;
    color: var(--color-primario);
    margin-top: 1rem;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 4rem;
    color: var(--color-secundario);
    opacity: 0.3;
    font-family: serif;
}

/* --- Responsive Improvements --- */
@media (max-width: 768px) {
    .quote-form {
        padding: 2rem;
        margin: 0 1rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .whatsapp-button {
        bottom: 20px;
        right: 20px;
        padding: 15px;
    }
    
    .hero {
        background-attachment: scroll;
    }
}

/* --- Loading Animation --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

/* --- FAQ Styles --- */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-category {
    margin-bottom: 3rem;
}

.faq-category h2 {
    color: var(--color-primario);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-secundario);
    font-size: 1.5rem;
}

.faq-item {
    background: var(--color-tarjeta-fondo);
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: var(--sombra-tarjeta);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--sombra-hover);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-texto);
    transition: all 0.3s ease;
    text-align: left;
}

.faq-question:hover {
    background: var(--color-gris-claro);
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-secundario);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--color-gris-claro);
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    margin: 0;
    line-height: 1.6;
}

.faq-answer ul {
    padding: 0 1.5rem 1.5rem;
    margin: 0;
    list-style: none;
}

.faq-answer li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.faq-answer li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secundario);
    font-weight: bold;
}

.faq-answer ol {
    padding: 0 1.5rem 1.5rem 3rem;
    margin: 0;
}

.faq-answer ol li {
    padding-left: 0;
}

.faq-answer ol li::before {
    display: none;
}

/* --- Utility Classes --- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }