/* Añadir definiciones de fuente local */
@font-face {
    font-family: 'Roboto';
    src: url('fonts/Roboto/Roboto-VariableFont_wdth,wght.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Roboto';
    src: url('fonts/Roboto/Roboto-Italic-VariableFont_wdth,wght.ttf') format('truetype');
    font-weight: normal;
    font-style: italic;
}

@font-face {
    font-family: 'Roboto';
    src: url('fonts/Roboto/static/Roboto-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

@font-face {
    font-family: 'Roboto';
    src: url('fonts/Roboto/static/Roboto-BoldItalic.ttf') format('truetype');
    font-weight: bold;
    font-style: italic;
}

@font-face {
    font-family: 'Roboto';
    src: url('fonts/Roboto/static/Roboto-Light.ttf') format('truetype');
    font-weight: 300;
    font-style: normal;
}

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

/* Logo del Instituto de Informática */
.institute-logo {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 100;
}

.institute-logo img {
    height: 64px;
    width: auto;
}

.institute-logo span {
    font-size: 12px;
    color: #e0e0e0;
    max-width: 150px;
    text-align: left;
    line-height: 1.2;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #2c2c2c;
    color: #e0e0e0;
    line-height: 1.6;
}

/* Contenedor principal */
#presentation {
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

/* Índice */
#index {
    display: none;
    width: 100%;
    height: 100vh;
    overflow-y: auto;
    background-color: #1a1a1a;
    padding: 2rem;
    animation: fadeIn 0.5s ease-in-out;
}

#index.active {
    display: block;
}

.index-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.index-container h1 {
    font-size: 2.5rem;
    color: #478cbf;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.logo {
    width: 250px;
    margin: 2rem auto;
    display: block;
}

.index-list {
    list-style: none;
    text-align: left;
    border: 1px solid #444;
    border-radius: 10px;
    padding: 1rem;
    background-color: #222;
}

.index-list li {
    margin: 0.8rem 0;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s;
}

.index-list li:hover {
    background-color: #333;
}

.index-list a {
    text-decoration: none;
    color: #e0e0e0;
    font-size: 1.2rem;
    display: block;
    width: 100%;
}

/* Slides */
.slide {
    display: none;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-color: #1a1a1a;
    padding: 2rem;
    animation: fadeIn 0.5s ease-in-out;
}

.slide.active {
    display: block;
}

.slide-content {
    width: 100%;
    height: calc(100vh - 4rem);
    overflow-y: auto;
    padding-bottom: 60px; /* Espacio para los controles */
}

.slide-content h1 {
    font-size: 2.2rem;
    color: #478cbf;
    text-align: center;
    margin-bottom: 1.75rem;
    border-bottom: 2px solid #478cbf;
    padding-bottom: 0.5rem;
    position: relative;
    min-height: 100px; /* Espacio para el logo */
}

.slide-content h1::after {
    content: '';
    background-image: url('images/logo_idei.png');
    background-size: contain;
    background-repeat: no-repeat;
    width: 64px;
    height: 64px;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-60%);
    opacity: 0.75;
}

.slide-main {
    display: flex;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.slide-text {
    flex: 1;
    min-width: 300px;
    padding-right: 1rem;
}

.slide-image {
    flex: 1;
    text-align: center;
    transition: transform 0.3s ease;
}

.slide-image img, .slide-image video {
    max-width: 90%;
    cursor: pointer;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.slide-image img:hover, .slide-image video:hover {
    transform: scale(1.03);
}

h2 {
    font-size: 1.5rem;
    color: #e9c46a;
    margin: 1.5rem 0 0.8rem 0;
}

h3 {
    font-size: 1.2rem;
    color: #e9c46a;
    margin: 1rem 0 0.5rem 0;
}

ul, ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

strong {
    font-weight: 700;
    color: #f4a261;
}

.code-box {
    background-color: #272822;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1.5rem;
    width: 100%;
    overflow-x: auto;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
}

pre {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    color: #f8f8f2;
    white-space: pre-wrap;
}

code {
    display: block;
    line-height: 1.5;
}

/* Controles de navegación */
.controls {
    position: fixed;
    bottom: 20px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.controls button {
    background-color: #478cbf;
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

.controls button:hover {
    background-color: #366a95;
    transform: translateY(-3px);
}

.controls button:active {
    transform: translateY(0);
}

.home-btn {
    background-color: #e76f51 !important;
}

.home-btn:hover {
    background-color: #d55b3e !important;
}

/* Links */
a {
    color: #478cbf;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #366a95;
    text-decoration: underline;
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Estilos especiales */
.thank-you {
    margin-top: 2rem;
    font-size: 1.8rem;
    color: #e9c46a;
}

/* Fullscreen overlay */
.fullscreen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.fullscreen-overlay.active {
    opacity: 1;
    visibility: visible;
}

.fullscreen-overlay img, .fullscreen-overlay video {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    width: 50px;
    height: 50px;
    font-size: 40px;
    color: white;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    z-index: 1001; /* Ensure it's above everything */
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    line-height: 40px;
}

.close-btn:hover {
    background: rgba(255, 0, 0, 0.5);
    transform: scale(1.1);
}

/* Clase para lectores de pantalla (elementos visibles solo para tecnologías asistivas) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Media queries para dispositivos móviles */
@media (max-width: 768px) {
    .slide-main {
        flex-direction: column;
    }
    
    .slide-text, .slide-image {
        width: 100%;
        padding-right: 0;
    }
    
    .slide-image {
        margin-top: 1.5rem;
    }
    
    .slide-content h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    .controls button {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .index-container h1 {
        font-size: 2rem;
    }
    
    .index-list a {
        font-size: 1rem;
    }
}