@import url('https://fonts.googleapis.com/css2?family=Righteous&family=Work+Sans:wght@100;300;400;600;800&display=swap');
*{
    box-sizing: border-box;
    font-family: 'Work Sans';
    margin: 0;
    padding: 0;
}

:root{    
    --primary-color: #0E1126;
    --primary-dark: #0D1E40;
    --primary-light: #144673;
    --secondary-color: #177DA6;
    --background-primary: #45A9BF;
    --text-primary-color: #e1f0f0;
    --text-secondary-color: #aeaeae;
}

html{
    /* me permite deslizar cuando hago clic en los links del menu */
    scroll-behavior: smooth;
}

body {
    cursor: default;
}

/* MENU */
.contenedor-header{
    background: var(--primary-color);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 99;
}
.contenedor-header header{
    max-width: 1100px;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}
.contenedor-header header .logo a{
    font-family: 'Righteous';
    font-size: 36px;
    color: var(--primary-light);
    text-decoration: none;
}
.contenedor-header header ul{
    display: flex;
    list-style: none;
}
.contenedor-header header nav ul li a{
    text-align: none;
    color: var(--text-secondary-color);
    margin: 0 15px;
    padding: 3px;
    transition: .5s;
    text-decoration: none;
}
.contenedor-header header nav ul li a:hover{
    color: var(--background-primary);
}


.certification-link {
    color: var(--background-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--background-primary);
    border-radius: 5px;
    margin: 15px 0 0 0; /* Espacio superior y elimina otros márgenes */
    background-color: rgba(69, 169, 191, 0.1); /* Usando tu variable --background-primary con transparencia */
}

.certification-link:hover {
    color: var(--text-primary-color);
    background-color: var(--background-primary);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.certification-link i {
    font-size: 0.9em;
    transition: transform 0.3s ease;
}

.certification-link:hover i {
    transform: scale(1.1);
}

.nav-responsive{
    background-color: var(--secondary-color);
    color: var(--text-secondary-color);
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    display: none;
}

.inicio .contenido-banner .redes a{
    color: var(--text-primary-color);
    display: inline-block;
    text-decoration: none;
    border: 1px solid var(--text-primary-color);
    border-radius: 100%;
    width: 42px;
    height: 42px;
    line-height: 42px;
    margin: 40px 5px;
    font-size: 20px;
    transition: .3s;
}
.inicio .contenido-banner .redes a:hover{
    background-color: var(--secondary-color);
}

/* PROYECTO ÚNICO - ZARA SALES ANALYSIS */
.proyecto-detalle {
    background: linear-gradient(to bottom, var(--primary-dark), var(--primary-color));
    color: var(--text-primary-color);
    padding: 100px 20px 50px;
    min-height: 100vh;
}

.proyecto-detalle .contenido-seccion {
    max-width: 1100px;
    margin: 0 auto;
}

.proyecto-detalle h2 {
    font-size: 2.8rem;
    font-family: 'Righteous', sans-serif;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-primary-color);
}

.proyecto-header {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

.proyecto-imagen-principal {
    flex: 2;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.proyecto-imagen-principal img {
    width: 100%;
    height: auto;
    display: block;
}

.proyecto-metadata {
    flex: 1;
    background: rgba(20, 70, 115, 0.2);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--secondary-color);
}

.metadata-item {
    margin-bottom: 20px;
}

.metadata-label {
    font-weight: 600;
    color: var(--background-primary);
    display: block;
    margin-bottom: 5px;
}

.metadata-value {
    display: block;
}

.proyecto-seccion {
    margin-bottom: 50px;
}

.proyecto-seccion h3 {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(69, 169, 191, 0.3);
}
.proyecto-seccion h4 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    padding-bottom: 5px;
}
.features-list,
.features-sublist {
  list-style-type: none;
}

.features-list li,
.features-sublist li {
  padding: 10px 0;
  padding-left: 25px;
  position: relative;
}

.features-list li::before{
  content: "\2022";  /* Código Unicode para • */
  font-size: 1.5rem;
  position: absolute;
  left: 0;
  top: 5px;
}

.features-sublist li::before {
  content: "\2022";  /* Código Unicode para • */
  font-size: 1.1rem;
  position: absolute;
  left: 0;
  top: 9px;
}

.features-list li::before {
  color: var(--secondary-color);
}

.features-sublist li::before {
  color: var(--background-primary);
}

.external-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.code-snippet {
    background: var(--primary-dark);
    padding: 20px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 20px 0;
}

.visualizaciones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
}

.visualizacion-item {
    background: rgba(20, 70, 115, 0.1);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.visualizacion-item img {
    width: 90%;
    height: auto;
    border-radius: 5px;
    margin-bottom: 15px;
}

.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* Aspect ratio 16:9 */
    margin: 20px 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    background: rgba(20, 70, 115, 0.1);
    border: 1px solid var(--secondary-color);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

code {
    background-color: #f4f4f4;
    font-family: monospace;
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 0.95em;
    color: #d63384;
}


/* Responsive para móviles */
@media (max-width: 768px) {
    .video-container {
        margin: 15px 0;
    }
}

@media (max-width: 480px) {
    .video-container {
        margin: 10px 0;
        border-radius: 5px;
    }
    
    .video-container iframe {
        border-radius: 5px;
    }
}

/* RESPONSIVE */
/* SECCION RESPONSIVE */
@media screen and (max-width:980px){
    nav{
        display: none;
    }
    .nav-responsive{
        display: block;
    }
    nav.responsive{
        display: block;
        position: absolute;
        right: 0;
        top: 75px;
        background-color: var(--primary-color);
        width: 180px;
    }
    nav.responsive ul{
        display: block !important;
    }
    nav.responsive ul li{
        border-bottom: 1px solid var(--text-secondary-color);
        padding: 10px 0;
    }
}


@media (max-width: 768px) {
    .proyecto-header {
        flex-direction: column;
    }
    
    .proyecto-detalle h2 {
        font-size: 2.2rem;
    }
    
    .proyecto-seccion h3 {
        font-size: 1.5rem;
    }
    .proyecto-seccion h4 {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .proyecto-detalle {
        padding: 80px 15px 40px;
    }
    
    .proyecto-detalle h2 {
        font-size: 1.8rem;
    }
}