/* Estilos principales Bicicletas Mañas */
.header {
    background-color: #111;
    color: #fff;
    padding: 15px 0;
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
.flex-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo img {
    max-height: 65px;
    height: auto;
    width: auto;
}
.nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}
.nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
}
.hero {
    background: #1a1a1a;
    color: #fff;
    padding: 80px 0;
    text-align: center;
}
.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    background-color: #d90429;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 15px;
    font-weight: bold;
}
.biomecanica {
    padding: 60px 0;
    background-color: #f8f9fa;
}
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
}
.biomecanica img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.footer {
    background-color: #111;
    color: #aaa;
    text-align: center;
    padding: 20px 0;
}
@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}