:root {
    --celeste: #3D9BE9;
    --celeste-oscuro: #2A7BB9;
    --blanco: #FFFFFF;
    --gris-claro: #F8F9FA;
    --gris-medio: #E9ECEF;
    --gris-oscuro: #343A40;
    --verde: #28A745;
    --verde-oscuro: #1E7E34;
    --dorado: #FFD700;
    --azul-boca: #0037A1;
    --rojo-river: #D40032;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--gris-oscuro);
    background-color: var(--gris-claro);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* HEADER Y NAVEGACIÓN */
header {
    background-color: var(--blanco);
    padding: 15px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

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

.logo-icon {
    background-color: var(--celeste);
    color: var(--blanco);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.logo h1 {
    color: var(--celeste);
    font-size: 1.8rem;
    font-weight: 800;
    font-family: 'Oswald', sans-serif;
}

.logo span {
    color: var(--gris-oscuro);
}

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

nav a {
    color: var(--gris-oscuro);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: color 0.3s;
}

nav a:hover {
    color: var(--celeste);
}

.admin-link {
    background-color: var(--celeste);
    color: var(--blanco);
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 700;
    transition: background-color 0.3s;
}

.admin-link:hover {
    background-color: var(--celeste-oscuro);
    color: var(--blanco);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--celeste);
    font-size: 1.5rem;
    cursor: pointer;
}

/* HERO - MUNDIAL 2026 CON FONDO DE CANCHA */
.hero {
    position: relative;
    background-image: url('https://images.pexels.com/photos/399187/pexels-photo-399187.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--blanco);
    padding: 120px 0;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: repeating-linear-gradient(
        45deg,
        rgba(46, 125, 50, 0.3) 0px,
        rgba(46, 125, 50, 0.3) 2px,
        rgba(255, 255, 255, 0.1) 2px,
        rgba(255, 255, 255, 0.1) 6px
    );
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--dorado), #ffaa00);
    color: var(--gris-oscuro);
    font-weight: 800;
    padding: 10px 30px;
    border-radius: 50px;
    margin-bottom: 25px;
    font-size: 1.2rem;
    letter-spacing: 2px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    animation: pulse 2s infinite;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 800;
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
}

.hero h2 span {
    color: var(--dorado);
}

.hero p {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 30px;
    color: var(--blanco);
    text-shadow: 1px 1px 4px rgba(0,0,0,0.5);
}

/* SECCIONES GENERALES */
.section-title {
    text-align: center;
    margin-bottom: 50px;
    color: var(--celeste);
    font-size: 2.5rem;
    font-weight: 800;
    font-family: 'Oswald', sans-serif;
    position: relative;
    text-transform: uppercase;
}

.section-title span {
    color: var(--dorado);
}

.section-title:after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background-color: var(--dorado);
    margin: 15px auto;
}

section {
    padding: 80px 0;
}

/* CARACTERÍSTICAS */
.features {
    background-color: var(--blanco);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--gris-claro);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
    border-top: 4px solid var(--celeste);
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    background-color: var(--celeste);
    color: var(--blanco);
    width: 70px;
    height: 70px;
    line-height: 70px;
    border-radius: 50%;
    font-size: 1.8rem;
    margin: 0 auto 20px;
}

.feature-card h3 {
    color: var(--celeste);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

/* GALERÍA */
.gallery {
    background-color: var(--gris-claro);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    height: 250px;
    position: relative;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    color: var(--blanco);
    padding: 10px;
    text-align: center;
    font-weight: 600;
}

/* DEMO SISTEMA */
.demo {
    background-color: var(--blanco);
}

.demo-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 50px;
}

.demo-text {
    flex: 1;
    min-width: 300px;
}

.demo-image {
    flex: 1;
    min-width: 300px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 5px solid var(--celeste);
    background-color: #f0f8ff;
    padding: 20px;
}

.demo-image-content {
    background-color: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    font-family: 'Arial', sans-serif;
}

.login-title {
    color: var(--celeste);
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.8rem;
    font-weight: 700;
}

.login-subtitle {
    color: var(--gris-oscuro);
    text-align: center;
    margin-bottom: 20px;
    font-size: 1rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--gris-oscuro);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: 'Montserrat', sans-serif;
    transition: border-color 0.3s;
}

.form-input:focus {
    border-color: var(--celeste);
    outline: none;
}

.login-button {
    background-color: var(--celeste);
    color: var(--blanco);
    border: none;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
    display: block;
    width: 100%;
    margin-top: 20px;
    text-transform: uppercase;
}

.login-button:hover {
    background-color: var(--celeste-oscuro);
}

.demo-credentials {
    background-color: var(--gris-claro);
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
    border-left: 4px solid var(--dorado);
}

.demo-credentials h4 {
    color: var(--celeste);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.cta-button {
    display: inline-block;
    background-color: var(--dorado);
    color: var(--gris-oscuro);
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-transform: uppercase;
}

.cta-button:hover {
    background-color: var(--celeste);
    color: var(--blanco);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.25);
}

/* PRODUCTOS */
.products {
    background-color: var(--gris-claro);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: var(--blanco);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
    border-top: 4px solid var(--celeste);
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-info {
    padding: 20px;
    text-align: center;
}

.product-info h3 {
    color: var(--celeste);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.product-team {
    color: var(--gris-oscuro);
    font-size: 0.9rem;
    margin-bottom: 5px;
    font-weight: 600;
}

.team-boca {
    color: var(--azul-boca);
}

.team-river {
    color: var(--rojo-river);
}

.product-price {
    color: var(--verde);
    font-weight: 700;
    font-size: 1.2rem;
    margin: 10px 0;
}

/* CONTACTO */
.contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.contact-item {
    background-color: var(--blanco);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    border-top: 4px solid var(--celeste);
}

.contact-icon {
    background-color: var(--celeste);
    color: var(--blanco);
    width: 60px;
    height: 60px;
    line-height: 60px;
    border-radius: 50%;
    font-size: 1.5rem;
    margin: 0 auto 15px;
}

.contact-item h3 {
    color: var(--celeste);
    margin-bottom: 10px;
}

.whatsapp-btn {
    display: inline-block;
    background-color: #25D366;
    color: var(--blanco);
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 10px;
    transition: background-color 0.3s;
}

.whatsapp-btn:hover {
    background-color: #128C7E;
    color: var(--blanco);
}

.system-btn {
    display: inline-block;
    background-color: var(--celeste);
    color: var(--blanco);
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 10px;
    transition: background-color 0.3s;
}

.system-btn:hover {
    background-color: var(--celeste-oscuro);
    color: var(--blanco);
}

/* FOOTER */
footer {
    background-color: var(--celeste-oscuro);
    color: var(--blanco);
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-column {
    flex: 1;
    min-width: 250px;
    margin-bottom: 30px;
}

.footer-column h3 {
    color: var(--blanco);
    margin-bottom: 20px;
    font-size: 1.3rem;
    font-family: 'Oswald', sans-serif;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gris-claro);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--blanco);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

/* PELO TITA */
.hair-style {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: var(--celeste);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blanco);
    font-size: 1.8rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 100;
    cursor: pointer;
    transition: all 0.3s;
}

.hair-style:hover {
    background-color: var(--celeste-oscuro);
    transform: scale(1.1);
}

@keyframes pulse {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.9; transform: scale(1.05); }
    100% { opacity: 1; transform: scale(1); }
}

/* RESPONSIVE */
@media (max-width: 992px) {
    .hero h2 { font-size: 2.8rem; }
    .hero p { font-size: 1.1rem; }
}

@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    
    nav ul {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--blanco);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    nav ul.show { display: flex; }
    
    .hero { padding: 80px 0; }
    .hero h2 { font-size: 2.2rem; }
    .hero-badge { font-size: 1rem; }
    .section-title { font-size: 2rem; }
    section { padding: 60px 0; }
    .demo-content { flex-direction: column; }
}

@media (max-width: 576px) {
    .logo h1 { font-size: 1.5rem; }
    .hero h2 { font-size: 1.8rem; }
    .hero-badge { padding: 8px 20px; font-size: 0.9rem; }
}

/* EFECTOS DE APARICIÓN */
.feature-card, .product-card, .contact-item, .gallery-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}