/*
========================================
--- TEMA OSCURO PRINCIPAL (VIOLET STORM) ---
========================================
*/

/* Estilos para el background principal */
.background-container {
    min-height: 100vh;
    width: 100%;
    position: relative;
    background-color: #000000;
    overflow: hidden;
    transition: background-color 0.5s ease;
}

.background-glow {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(139, 92, 246, 0.25), transparent 70%), #000000;
}

/* Ajustes para el body */
body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    color: #d1d5db;
}

/* Contenido principal de la aplicación */
#app-content {
    position: relative;
    z-index: 1;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/*
========================================
--- ESTILOS GENERALES Y MODALES ---
========================================
*/

.hidden {
    display: none !important;
}

.error-message {
    color: #dc3545;
    margin-top: 10px;
    text-align: center;
    font-weight: bold;
}

/* Modal */
.modal {
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.4s ease;
    flex-direction: column;
}

.modal-content {
    background-color: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: slideUp 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; } to { opacity: 1; }
}
@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close-button {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close-button:hover {
    color: #000;
}

/* Formularios */
form label {
    display: block;
    margin-top: 15px;
    margin-bottom: 5px;
    font-weight: 600;
}

form input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 10px;
    box-sizing: border-box;
    font-size: 16px;
    transition: border-color 0.3s;
}

form input:focus {
    border-color: #667eea;
    outline: none;
}

.submit-button {
    width: 100%;
    padding: 14px;
    margin-top: 25px;
    background: linear-gradient(to right, #8b5cf6, #421e80);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.4s;
}

.submit-button:hover {
    transform: scale(1.03);
    background: linear-gradient(to right, #421e80, #8b5cf6);
}

.submit-button:disabled {
    background: #cccccc;
    cursor: not-allowed;
    transform: none;
}

/* Contenedor principal */
.container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/*
========================================
--- SIDEBAR Y CONTENIDO DE LA APP ---
========================================
*/

/* Sidebar */
.sidebar-logo {
    display: block;
    max-width: 125px;
    margin: 0 auto 25px;
}

.sidebar {
    width: 250px;
    background: radial-gradient(125% 125% at 50% 10%, #000000 40%, #350136 100%);
    color: #fff;
    padding: 20px;
    border-right: 1px solid #350136;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.sidebar h2 {
    text-align: center;
    color: #ddd6fe;
    font-size: 22px;
}

.sidebar button {
    display: block;
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    background-color: transparent;
    border: 1px solid #350136;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    text-align: left;
    transition: background-color 0.3s, border-color 0.3s, transform 0.2s;
}

.sidebar button:hover {
    background-color: rgba(221, 214, 254, 0.1);
    border-color: #ddd6fe;
    transform: translateX(5px);
    color: #fff;
}

.user-info {
    text-align: center;
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 14px;
    color: #e0e0e0;
    padding: 0 10px;
    font-weight: 500;
}

.logout-button {
    margin-top: 30px !important;
    background: linear-gradient(to right, #570b5e, #0f001b) !important;
    border: none !important;
}

.logout-button:hover {
    background: linear-gradient(to right, #0f001b, #570b5e) !important;
    color: white !important;
}

/* Área de contenido */

/* Estilos para los enlaces dentro del área de contenido */
.content a {
    color: #a78bfa; /* Un tono de púrpura claro, similar a tu tema */
    text-decoration: underline; /* Mantiene el subrayado para que se identifiquen como enlaces */
    transition: color 0.3s ease; /* Transición suave para el efecto hover */
}

.content a:hover {
    color: #c4b5fd; /* Un tono aún más claro de púrpura al pasar el mouse */
}

.content {
    flex-grow: 1;
    padding: 12px 40px 40px; /* top reducido, laterales y bottom igual */
    overflow-y: auto;
    transition: padding 0.3s ease;
}

.content h1, .content h2 {
    color: #ddd6fe;
}
.content h3, .content h4 {
    color: #f9fafb;
}

.content code {
    background-color: #2d2d2d;
    padding: 2px 5px;
    border-radius: 4px;
    color: #f1f1f1;
    font-family: "Courier New", Courier, monospace;
}

.content pre {
    background-color: #2d2d2d;
    color: #f8f8f2;
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
}

.content img {
    max-width: 55%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 10px;
}

.audio-player-container {
    background-color: #111827;
    border-left: 5px solid #421e80;
    border-radius: 10px;
    padding: 13px 18px;
    margin-bottom: 16px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.audio-player-container-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.audio-player-container h3 {
    margin: 0 18px 0 0;
    color: #ebe6ff;
    font-size: 18px;
    flex-shrink: 0;
}

.content audio {
    width: 85%;
    max-height: 32px;
}

.start-lab-button {
    margin: 0;
    align-self: flex-end;
    /* Reducimos el padding vertical para hacerlo más delgado */
    padding: 8px 24px; /* Anteriormente: 10px 24px; */
    background: linear-gradient(to right, #120c20, #421e80);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s, transform 0.2s;
    float: none;
    white-space: nowrap; /* Añadido: Evita que el texto se divida en varias líneas */
    display: inline-block; /* Añadido: Asegura que el white-space: nowrap funcione correctamente */
}

.start-lab-button:hover {
    background: linear-gradient(to right, #421e80, #120c20);
    transform: scale(1.05);
}

/*
========================================
--- VISTA DE LOGIN Y MODALES OSCUROS ---
========================================
*/

.background-container.login-view .background-glow {
    background-image: radial-gradient(
      circle 500px at 50% 100px,
      rgba(139, 92, 246, 0.4),
      transparent
    );
    filter: blur(100px);
}

/* CAMBIO: Se agrupan los selectores para aplicar el estilo a AMBOS modales */
.background-container.login-view #login-modal .modal-content,
#start-lab-modal .modal-content {
    background-color: rgba(17, 24, 39, 0.8);
    border: 1px solid rgba(139, 92, 246, 0.3);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

/* CAMBIO: Se agrupan los selectores para el texto de AMBOS modales */
.background-container.login-view #login-modal .modal-content h2,
.background-container.login-view #login-modal .modal-content label,
#start-lab-modal .modal-content h2,
#start-lab-modal .modal-content label,
#start-lab-modal .modal-content p {
    color: #f1f1f1;
}

/* CAMBIO: Se agrupan los selectores para los inputs de AMBOS modales */
.background-container.login-view #login-modal .modal-content input,
#start-lab-modal .modal-content input {
    background-color: rgba(30, 41, 59, 0.8);
    color: #fff;
    border-color: rgba(139, 92, 246, 0.5);
}

.background-container.login-view #login-modal .modal-content input:focus,
#start-lab-modal .modal-content input:focus {
    border-color: #8b5cf6;
}

.login-logo {
    display: block;
    max-width: 150px;
    margin-bottom: 30px;
}

/* CAMBIO: Estilo específico para el botón de cerrar en el modal oscuro */
#start-lab-modal .close-button:hover {
    color: #fff;
}

/* CAMBIO: Estilo para que el botón de submit del modal de lab coincida con el tema */
#start-lab-modal .submit-button {
    background: linear-gradient(to right, #421e80, #8b5cf6);
}
#start-lab-modal .submit-button:hover {
    background: linear-gradient(to right, #8b5cf6, #421e80);
}

/* Barra superior del audio: título | audio | botón */
.audio-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    /* Opcional si quieres que se acomode en pantallas chicas sin romperse */
    flex-wrap: wrap;
    margin-bottom: 0px;
  }
  
  .audio-bar h3 {
    margin: 0;
    white-space: nowrap; /* evita que el título se corte feo */
  }
  
  /* El audio ocupa el espacio central, adaptándose al ancho disponible */
  .audio-inline {
    flex: 1 1 420px; /* crece, puede encogerse, base ~420px */
    width: 100%;
    min-width: 180px;  /* para que no se haga demasiado pequeño */
  }
  
  /* Asegura que el botón quede al final de la fila */
  .start-lab-button {
    /* sin margin-left:auto; el audio se estira y lo empuja a la derecha */
  }
  

/* ------------------- RESPONSIVE ------------------- */
@media screen and (max-width: 768px) {
    .container {
        flex-direction: column;
        height: auto;
    }

    .sidebar {
        width: 100%;
        position: relative;
        box-shadow: none;
        border-bottom: 2px solid #350136;
        border-right: none;
    }

    .sidebar button {
        text-align: center;
        font-size: 18px;
    }

    .content {
        padding: 20px;
    }

    .modal-content {
        padding: 20px;
        max-width: 95%;
    }

    .start-lab-button {
        float: none;
        width: 100%;
        margin: 20px 0 0 0;
    }
    .background-container {
        min-height: auto;
        height: auto;
    }
    
    .sidebar {
        padding: 15px;
    }
    
    .sidebar button {
        padding: 15px;
        margin-bottom: 10px;
    }
    
    .content {
        padding: 15px;
    }
    
    .modal-content {
        width: 85%;
        margin: 20px auto;
    }
    
    .login-logo {
        max-width: 120px;
        margin-bottom: 20px;
    }
    
    #app-content {
        height: auto;
        min-height: 100vh;
    }
    
    .user-info {
        font-size: 12px;
        margin-top: 15px;
    }
}

/* ===== Sticky audio player ===== */
.audio-player-container {
    position: sticky;
    top: 0;
    z-index: 60;
}
.audio-player-container-inner {
    backdrop-filter: blur(2px);
}

/* ===== Markdown content layout ===== */
.md-body {
    max-width: 1200px;
    margin: 0 auto;
}
.md-body p {
    text-align: justify;
    line-height: 1.7;
}
.md-body h1, .md-body h2, .md-body h3, .md-body h4, .md-body h5, .md-body h6 {
    text-align: center;
}
.md-body img {
    display: block;
    margin: 20px auto;
    max-width: 70%;
    height: auto;
}

/* ===== Lightbox styles ===== */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    display: flex;                    /* flex para centrar */
    align-items: center;              /* vertical */
    justify-content: center;          /* horizontal */
    background: rgba(0,0,0,0.85);
    z-index: 1000;                    /* por encima de .modal (100) */
    animation: lbFadeIn 0.15s ease;
}
.lightbox-overlay.closing {
    animation: lbFadeOut 0.15s ease forwards;
}

/* backdrop ocupa todo y NO desplaza a la imagen */
.lightbox-backdrop {
    position: absolute;
    inset: 0;
}

.lightbox-image {
    display: block;                   /* evita espacios “inline” raros */
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    cursor: zoom-out;
}

@keyframes lbFadeIn { from { opacity: 0 } to { opacity: 1 } }
@keyframes lbFadeOut { from { opacity: 1 } to { opacity: 0 } }


/* Estilos para el GIF de Mario en la Sidebar */
.mario-sidebar-gif {
    display: block;
    margin: 30px auto 10px auto;
    max-width: 110px; /* Ajusta este valor si necesitas que sea más grande o pequeño */
    height: auto;
    
    /* === AQUÍ ESTÁ EL AJUSTE CLAVE DE OPACIDAD === */
    opacity: 0.2; /* Prueba con este valor (20% de opacidad) */
    /* filter: brightness(2); /* Considera si aún necesitas este filtro con la transparencia */
}

/* Para dispositivos móviles (opcional, si quieres un tamaño diferente en pantallas pequeñas) */
@media screen and (max-width: 768px) {
    .mario-sidebar-gif {
        max-width: 50px; 
        margin-top: 20px;
    }
}