/**
 * Estilos para la página de detalle de libro
 * Mantiene el look and feel de home-2026-final.css
 */

/* ===== ESTILOS GENERALES ===== */
body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
    font-family: 'Quicksand', Arial, sans-serif !important;
    font-size: 14px;
    line-height: 1.42857143;
    background-image: url('../img/2026/fondo.jpg');
    background-size: cover;
    background-position: center bottom;
    background-repeat: no-repeat;
    background-attachment: fixed;
    padding-top: 50px;
    padding-bottom: 20px;
}

/* ===== HEADER FIJO ===== */
.header-home {
    width: calc(100% - 60px);
    max-width: 1400px;
    margin: 1vh auto 0;
    background: white;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    padding: 2px 40px;
    z-index: 1000;
    position: fixed;
    top: 1vh;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo-ediba {
    height: 50px;
    width: auto;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.logo-ediba:hover {
    transform: scale(1.05);
}

.header-buttons {
    display: flex;
    gap: 40px;
    align-items: center;
}

.btn-aula-digital,
.btn-promotor {
    height: 42px;
    max-width: 200px;
    width: auto;
    cursor: pointer;
    transition: transform 0.3s ease;
    object-fit: contain;
}

.btn-aula-digital:hover,
.btn-promotor:hover {
    transform: translateY(-2px);
}

/* ===== TÍTULO DEL LIBRO ===== */
.titulo {
    font-family: 'Quicksand', Arial, sans-serif;
    padding: 0.5vh 0 1.5vh;
    font-size: 2em;
    text-align: center;
    font-weight: 700;
    color: #ed5a24;
    margin-top: 0;
}

/* ===== CONTENEDOR PRINCIPAL DEL LIBRO ===== */
.contenedorlibro {
    width: calc(100% - 40px);
    max-width: 1400px;
    height: 70vh;
    min-height: 500px;
    max-height: 800px;
    position: relative;
    margin: 0 auto 2vh;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}


/* Tapa del libro */
.tapalibro {
    position: absolute;
    width: 40%;
    height: 80%;
    left: 0;
    top: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.tapalibro img {
    width: auto;
    height: 98%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

/* Descripción del libro */
.descripcionlibro {
    position: absolute;
    width: 58%;
    height: 100%;
    padding: 1%;
    font-size: 0.9em;
    right: 0;
    top: 0;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
}

.descripcionlibro p,
.descripcionlibro div {
    width: 100%;
        height: auto;
    max-width: 100%;
    margin: 0 0 10px 0px ;
    padding: 0;
    box-sizing: border-box;
}

/* Tabs de navegación */
.nav-tabs {
    border-bottom: 1px solid #ddd;
    margin-bottom: 0;
    padding-left: 0;
    list-style: none;
}

.nav-tabs > li {
    float: left;
    margin-bottom: -1px;
}

.nav-tabs > li > a {
    margin-right: 2px;
    line-height: 1.42857143;
    border: 1px solid transparent;
    border-radius: 4px 4px 0 0;
    padding: 10px 15px;
    font-weight: 300;
    font-size: 20px;
}

.nav-tabs > li.active > a,
.nav-tabs > li.active > a:hover,
.nav-tabs > li.active > a:focus {
    color: #555;
    background-color: #fff;
    border: 1px solid #ddd;
    border-bottom-color: transparent;
    cursor: default;
}

.tab-content {
    height: calc(100% - 50px);
    width: 100%;
}

.tab-pane {
    color: #656f78;
    margin-top: 10px;
    width: 100%;
    max-height: 100%;
    overflow: visible;
    padding-right: 5px;
    box-sizing: border-box;
}

.manual-completo {
    display: inline-block;
}

/* Botones de visualización */
.visualizacion {
    position: absolute;
    display: flex;
    padding: 1% 5%;
    justify-content: space-around;
    align-items: center;
    width: 90%;
    height: 20%;
    bottom: 0;
    left: 0;
}

.fondo-colorado,
a.fondo-rojo {
    text-align: center;
    background-color: #ed5a24;
    color: white;
    font-family: 'Quicksand', Arial, sans-serif;
    font-size: clamp(14px, 1.5vw, 20px);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 40px;
    padding: 10px 25px;
    display: inline-block;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.fondo-colorado:hover,
a.fondo-rojo:hover {
    transform: translateY(-2px);
    color: white;
    text-decoration: none;
}

/* ===== LIBROS RELACIONADOS ===== */
.principal.relacionados {
    width: calc(100% - 60px);
    max-width: 1400px;
    margin: 2vh auto;
    padding: 2vh 0;
}

.principal.relacionados h3 {
    text-align: center;
    font-family: 'Quicksand', Arial, sans-serif;
    font-weight: 700;
    font-size: 2em;
    color: #ed5a24;
    text-transform: uppercase;
    margin-bottom: 2vh;
}

.principal .container-libros {
    text-align: center;
}

.principal .container-libro {
    display: inline-block;
    white-space: normal;
    margin-bottom: 25px;
}

.principal a.libro {
    color: #00a4e3;
    text-transform: uppercase;
    font-weight: 600;
    background: #fff;
    width: 220px;
    padding: 0;
    margin: 0 15px;
    text-align: center;
    font-size: 20px;
    display: block;
    position: relative;
    height: 360px;
    overflow: hidden;
    transition: all 0.2s ease-out;
}

.principal a.libro:hover {
    transform: translate(5px, -5px);
    box-shadow: -5px 5px 0 #0792c7;
    text-decoration: none;
}

/* ===== RESPONSIVE MÓVIL ===== */
@media (max-width: 768px) {
    body {
        padding-top: 100px;
        padding-bottom: 40px;
    }

    .header-home {
        width: calc(100% - 30px);
        margin: 3% auto 0;
        padding: 12px 20px;
        border-radius: 35px;
        top: 3%;
    }

    .logo-ediba {
        height: 40px;
    }

    .header-buttons {
        gap: 10px;
    }

    .btn-aula-digital,
    .btn-promotor {
        height: 35px;
        max-width: 150px;
    }

    .principal.relacionados {
        width: calc(100% - 30px);
    }

    .contenedorlibro {
        height: auto;
        min-height: auto;
        max-height: none;
        padding: 15px;
        display: flex;
        flex-direction: column;
    }

    .tapalibro,
    .descripcionlibro,
    .visualizacion {
        position: relative;
        width: 100%;
        height: auto;
    }

    .tapalibro {
        margin-bottom: 20px;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .tapalibro img {
        position: relative;
        transform: none;
        max-height: 400px;
        width: auto;
    }

    .descripcionlibro {
        padding: 10px 0;
        overflow: visible;
    }

    .tab-content {
        height: auto;
    }

    .tab-pane {
        height: auto;
        max-height: none;
    }

    .visualizacion {
        flex-direction: column;
        padding: 15px 0;
        gap: 10px;
        margin-top: 20px;
    }

    .titulo {
        font-size: 1.5em;
        padding: 1vh 0;
    }

    .principal a.libro {
        width: 180px;
        height: 300px;
        font-size: 16px;
    }
}

@media (max-width: 410px) {
    .header-content {
        flex-direction: column;
        gap: 10px;
    }
}