:root {
    --primary-color: #0056b3;
    --secondary-color: #f4f7f6;
    --text-color: #333333;
    --card-bg:#ffffff;
    --nav-bg:#ffffff;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
    --border-color: #e0e0e0;
}

.dark-theme{
    --primary-color: #4da3ff;
    --secondary-color: #1a1a1a;
    --text-color: #f4f4f4;
    --card-bg:#2d2d2d;
    --nav-bg:#222222;
    --shadow: 0 4px 6px rgba(0,0,0,0.5);
    --border-color: #444444;
}

/*Estilos base*/
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body{
    background-color: var(--secondary-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/*Navegacion y Logo*/
.navbar{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background-color: var(--nav-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a{
    text-decoration: none;
    color: var(--text-color);
    font-weight: bold;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover{
    color: var(--primary-color);
}

.logo-container{
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img{
    height: 45px;
    width: auto;
    object-fit: contain;
}

.logo-text{
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.theme-btn{
    background: none;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.theme-btn:hover{
    background-color: var(--primary-color);
    color: var(--card-bg);
}

/*Sección Hero*/
.hero{
    text-align: center;
    padding: 100px 20px;
    background-image: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('banner-alt.png' );
    background-size: cover;
    background-position: center;
    color: #ffffff;
}

.hero h1{
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

/*tabs*/
.menu-section{
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.tabs-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
}
.tab-btn{
    background: transparent;
    display: flex;
    border: none;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-color);
    padding: 10px 5px;
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0%;
    height: 3px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.tab-btn.active::after{
    width: 100%;
}

.tab-btn.active{
    color: var(--primary-color);
}

/*grilla y tarjetas*/

.menu-category{
    display: none;
}

.menu-category.active{
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.grid-container{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.item-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-content {
    padding: 20px;
}

.card-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.card-content p {
    font-size: 0.95rem;
    margin-bottom: 15px;
    color: var(--text-color);
    opacity: 0.9;
}

.price {
    display: inline-block;
    font-weight: bold;
    color: var(--card-bg);
    background-color: var(--primary-color);
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    text-decoration: none;
}

.price:hover {
    opacity: 0.8;
}

/* Pie de página */
footer {
    text-align: center;
    padding: 30px;
    background-color: var(--nav-bg);
    margin-top: 50px;
    border-top: 1px solid var(--border-color);
}

/* Botón Flotante de WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    border-radius: 50px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s ease;
}

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

.whatsapp-float img {
    width: 35px;
    height: 35px;
}

/* Formulario de Contacto */
.contact-section {
    max-width: 600px;
    margin: 60px auto;
    padding: 30px;
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: background-color 0.3s ease;
}

.contact-section h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.contact-section p {
    margin-bottom: 25px;
    font-size: 0.95rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--secondary-color);
    color: var(--text-color);
    font-size: 1rem;
    transition: background-color 0.3s ease, border 0.3s ease;
}

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

.submit-btn {
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 15px;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.submit-btn:hover {
    opacity: 0.8;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
}

.quiz-container{
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.question-block { 
    margin-bottom: 25px; 
    padding-bottom: 15px; 
    border-bottom: 1px solid var(--border-color); 
}
.question-block h3 { 
    margin-bottom: 10px; 
    color: var(--primary-color); 
}
.question-block label { 
    display: block; 
    margin-bottom: 8px; 
    cursor: pointer; 
}
#quiz-result { 
    display: none; 
    text-align: center; 
    margin-top: 30px; 
    padding: 20px; 
    background: var(--secondary-color); 
    border-radius: 10px; 
    border: 2px solid var(--primary-color); 
}
#quiz-result h2 { 
    color: var(--primary-color); 
    margin-bottom: 15px; 
}

.price-container{
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 20px;
    text-align: left;
}

.old-price{
    font-size: 0.95rem;
    color: #888;
    text-decoration: line-through;
    font-weight: 500;
}

.dark-theme .old-price{
    color: #aaa;
}

.current-price{
    font-size: 1.4rem;
    font-weight: 800;
    color: #ff3333;
}