/* Variables */
:root {
    --primary-color: #c62828; /* Rojo vibrante */
    --secondary-color: #ffffff; /* Blanco */
    --accent-color: #0d47a1; /* Azul moderno */
    --highlight-color: #ffca28; /* Amarillo cálido */
    --background-color: #f5f5f5; /* Fondo claro */
    --text-color: #212121; /* Gris oscuro */
    --magna-color: #2e7d32; /* Verde Magna */
    --premium-color: #c62828; /* Rojo Premium */
    --diesel-color: #212121; /* Negro Diésel */
}

/* General Styles */
body {
    background: var(--background-color);
    color: var(--text-color);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--secondary-color);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 25px 0;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    height: 70px;
}

.nav ul {
    display: flex;
    gap: 40px;
}

.nav a {
    color: var(--accent-color);
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 18px;
    transition: color 0.3s, transform 0.3s;
}

.nav a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.nav a.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.btn-nav {
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    transition: background 0.3s, transform 0.3s;
}

.btn-nav:hover {
    background: #b71c1c;
    transform: scale(1.05);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 30px;
    color: var(--accent-color);
    cursor: pointer;
}

/* Hero (Carousel) */
.hero {
    margin-top: 100px;
    min-height: 700px;
    position: relative;
    overflow: hidden;
}

.carousel {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    display: none;
    width: 100%;
    height: 700px;
    position: relative;
}

.carousel-slide.active {
    display: block;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.carousel-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6));
    z-index: 1;
}

.carousel-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--secondary-color);
    z-index: 2;
}

.carousel-content h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 72px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.7);
    animation: fadeInUp 1s ease-out;
}

.carousel-content p {
    font-family: 'Open Sans', sans-serif;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1.2s ease-out;
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: var(--secondary-color);
    font-size: 24px;
    padding: 15px;
    cursor: pointer;
    transition: background 0.3s;
    z-index: 2;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(0, 0, 0, 0.8);
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 20px;
    transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--secondary-color);
}

.btn-primary:hover {
    background: #b71c1c;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-yellow {
    background: var(--highlight-color);
    color: var(--text-color);
}

.btn-yellow:hover {
    background: #ffb300;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn i {
    margin-right: 8px;
}

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

@keyframes fadeOutDown {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(30px);
    }
}

/* About */
.about {
    padding: 100px 20px;
    background: var(--background-color);
}

.about h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 40px;
}

.about p {
    text-align: center;
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.about-item {
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid var(--accent-color);
    text-align: center;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
    animation: fadeInUp 0.5s ease-out forwards;
}

.about-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
}

.about-item i {
    font-size: 60px;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: transform 0.3s;
}

.about-item:hover i {
    transform: scale(1.1);
}

.about-item h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.about-item p {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-color);
}

/* Billing */
.billing {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--secondary-color), var(--background-color));
}

.billing h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 40px;
}

.billing p {
    text-align: center;
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px;
}

.billing-content {
    display: flex;
    justify-content: center;
}

.billing-card {
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    padding: 50px;
    border-radius: 20px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
    animation: fadeInUp 0.5s ease-out forwards;
}

.billing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #f5f5f5, #e0e0e0);
}

.billing-card .icon {
    font-size: 60px;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: transform 0.3s;
}

.billing-card:hover .icon {
    transform: scale(1.1);
}

.billing-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.billing-card p {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-color);
    margin-bottom: 40px;
}

.billing-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.btn-facturar,
.btn-descargar {
    padding: 20px 40px;
    font-size: 20px;
}

/* RADEC */
.radec {
    padding: 120px 20px;
    background: var(--background-color);
}

.radec h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 40px;
}

.radec p {
    text-align: center;
    font-size: 20px;
    max-width: 900px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.radec-btn {
    display: block;
    margin: 0 auto;
    padding: 20px 40px;
    font-size: 20px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--secondary-color);
    padding: 40px;
    border-radius: 15px;
    max-width: 800px;
    text-align: center;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.5s ease-out;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

.modal-content h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 32px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 20px 0;
}

.modal-card {
    background: var(--secondary-color);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 0.5s ease-out forwards;
}

.modal-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.modal-img {
    width: 100%;
    height: 120px;
    object-fit: contain;
    border-radius: 10px;
    margin-bottom: 15px;
    transition: transform 0.3s;
}

.modal-card:hover .modal-img {
    transform: scale(1.05);
}

.modal-card h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.modal-card p {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-color);
    line-height: 1.4;
}

/* Form Success Modal */
#formSuccessModal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

#formSuccessModal .modal-content {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    max-width: 500px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.5s ease-out;
}

#formSuccessModal .modal-content h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

#formSuccessModal .modal-content p {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-color);
    margin-bottom: 20px;
}

#formSuccessModal .modal-content button {
    padding: 12px 24px;
    font-size: 16px;
}

/* Prices */
.prices {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--secondary-color), var(--background-color));
}

.prices h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 40px;
}

.prices p {
    text-align: center;
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px;
}

.prices-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.price-item {
    padding: 40px;
    text-align: center;
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    color: var(--secondary-color);
}

.price-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.price-item.magna {
    background: var(--magna-color);
}

.price-item.premium {
    background: var(--premium-color);
}

.price-item.diesel {
    background: var(--diesel-color);
}

.price-item h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    margin-bottom: 15px;
}

.price-item p {
    font-size: 18px;
}

/* Contact */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(13, 71, 161, 0.8), rgba(198, 40, 40, 0.8)), url('../assets/images/contact-bg.jpg') no-repeat center/cover;
    color: var(--secondary-color);
}

.contact h2 {
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    margin-bottom: 40px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto 60px;
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 18px;
    border: 2px solid var(--accent-color);
    border-radius: 10px;
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    font-weight: 400;
    background: var(--secondary-color);
    color: var(--text-color);
    transition: border-color 0.3s;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #757575;
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary-color);
    outline: none;
}

.contact-form textarea {
    resize: vertical;
    min-height: 200px;
}

.contact-form button {
    align-self: center;
    margin-top: 20px;
}

.contact-map {
    width: 100%;
    margin: 0;
    padding: 0;
    background: var(--secondary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.contact-map iframe {
    border-radius: 15px;
    display: block;
}

/* Footer */
.footer {
    background: var(--accent-color);
    color: var(--secondary-color);
    padding: 60px 20px;
    text-align: center;
}

.station-contact {
    margin: 20px 0;
    font-size: 18px;
}

.station-contact a {
    color: var(--highlight-color);
    font-weight: 700;
    transition: color 0.3s;
}

.station-contact a:hover {
    color: #ffb300;
}

.station-contact i {
    margin-right: 10px;
}

.social-links {
    margin-top: 20px;
}

.social-links a {
    color: var(--secondary-color);
    margin: 0 20px;
    font-size: 28px;
    transition: color 0.3s, transform 0.3s;
}

.social-links a:hover {
    color: var(--highlight-color);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100px;
        left: 0;
        width: 100%;
        background: var(--secondary-color);
        padding: 20px;
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .nav.active {
        display: block;
    }

    .nav ul {
        flex-direction: column;
        gap: 20px;
    }

    .nav a {
        font-size: 16px;
    }

    .btn-nav {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .carousel-slide {
        height: 500px;
    }

    .carousel-content h1 {
        font-size: 48px;
    }

    .carousel-content p {
        font-size: 20px;
    }

    .btn {
        font-size: 18px;
    }

    .about-item h3,
    .billing-card h3,
    .modal-card h4 {
        font-size: 20px;
    }

    .about-item p,
    .billing-card p,
    .modal-card p {
        font-size: 14px;
    }

    .about-item i,
    .billing-card .icon {
        font-size: 50px;
    }

    .billing-card {
        padding: 30px;
        max-width: 90%;
    }

    .billing-actions {
        flex-direction: column;
        gap: 20px;
    }

    .btn-facturar,
    .btn-descargar {
        padding: 16px 32px;
        font-size: 18px;
    }

    .radec {
        padding: 80px 20px;
    }

    .radec-btn {
        padding: 16px 32px;
        font-size: 18px;
    }

    .modal-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 20px;
        max-width: 90%;
    }

    #formSuccessModal .modal-content {
        max-width: 90%;
        padding: 20px;
    }

    #formSuccessModal .modal-content h3 {
        font-size: 20px;
    }

    #formSuccessModal .modal-content p {
        font-size: 14px;
    }

    .contact-content {
        max-width: 90%;
        padding: 20px;
    }

    .contact-form input,
    .contact-form textarea {
        font-size: 14px;
    }

    .contact-map iframe {
        height: 500px;
    }

    .station-contact {
        font-size: 16px;
    }
}