/* --- Reset y Estilos Globales --- */
:root {
    --background-main: #131314;
    --background-secondary: #1e1f20;
    --text-primary: #e3e3e3;
    --text-secondary: #a9b1ff;
    --accent-primary: #889aff;
    --accent-hover: #a9b1ff;
    --border-color: #333;
    --input-bg: #2a2b2e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-main);
    color: var(--text-primary);
    margin: 0;
    overflow: hidden; /* Evita el scroll en el body */
}

* {
    box-sizing: border-box;
}

/* --- Contenedor Principal de la App --- */
#app-container {
    display: flex;
    height: 100vh; /* Ocupa toda la altura de la ventana */
    width: 100vw;
    position: relative;
    overflow: hidden;
}

/* --- Panel Lateral de Configuración --- */
#settings-panel {
    position: fixed;
    top: 0;
    left: -350px; /* Oculto por defecto */
    width: 320px;
    height: 100%;
    background-color: var(--background-secondary);
    border-right: 1px solid var(--border-color);
    transition: left 0.3s ease-in-out;
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

#settings-panel.visible {
    left: 0;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
    margin: 0;
    color: var(--accent-primary);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
}

.panel-content {
    padding: 1.5rem;
    flex-grow: 1;
    overflow-y: auto;
}

.form-group, .switch-group {
    margin-bottom: 1.5rem;
}

.form-group label, .switch-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group select {
    width: 100%;
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid #444;
    background-color: var(--input-bg);
    color: var(--text-primary);
    font-size: 1rem;
}

.switch-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #444;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--accent-primary);
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.reconfig-btn {
    display: block;
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--accent-primary);
    border-radius: 8px;
    background-color: transparent;
    text-align: center;
    text-decoration: none;
    color: var(--accent-primary);
    margin-top: 1rem;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.reconfig-btn:hover {
    background-color: var(--accent-primary);
    color: var(--background-main);
}

/* --- Área de Chat Principal --- */
#chat-area {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

header {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--background-secondary);
    z-index: 10;
}

#open-settings {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    margin-right: 15px;
    color: var(--text-primary);
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 500;
}

#chat-window {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    max-width: 85%;
    display: flex; /* Para alinear el contenido */
}

.message .content {
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    line-height: 1.5;
    word-wrap: break-word;
}

.user-message {
    justify-content: flex-end;
    margin-left: auto; /* Empuja el mensaje a la derecha */
}

.user-message .content {
    background-color: var(--accent-primary);
    color: var(--background-main);
    border-bottom-right-radius: 2px;
}

.bot-message {
    justify-content: flex-start;
}

.bot-message .content {
    background-color: var(--background-secondary);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 2px;
}

/* --- Footer y Área de Input --- */
footer {
    display: flex;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--background-secondary);
}

#input-container {
    display: flex;
    width: 100%;
    max-width: 900px; /* Ancho máximo para el área de texto */
    margin: 0 auto; /* Centrar el contenedor */
    align-items: flex-end; /* Alinea el botón con el textarea cuando crece */
    background-color: var(--input-bg);
    border-radius: 12px;
}

/* Textarea auto-ajustable */
#user-input {
    flex-grow: 1;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 1rem;
    resize: none;
    padding: 0.75rem;
    max-height: 150px; /* Límite para que no crezca indefinidamente */
    overflow-y: auto;
}

#user-input:focus {
    outline: none;
}

#send-button {
    background: none;
    border: none;
    color: var(--accent-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.75rem;
    transition: color 0.2s ease;
}

#send-button:hover {
    color: var(--accent-hover);
}

/* --- Estilos para Contenido Dinámico --- */
.options-list {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.options-list button {
    display: block;
    width: 100%;
    text-align: left;
    background-color: #2a2b2e;
    color: var(--text-primary);
    border: 1px solid #444;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-top: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.options-list button:hover {
    background-color: #3a3b3e;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: var(--background-main);
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s ease;
    margin-top: 0.5rem;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid #444;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
.btn-secondary:hover {
    background-color: #3a3b3e;
}

.follow-up-options {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

/* --- Media Queries para Responsividad --- */
@media (max-width: 768px) {
    #settings-panel {
        position: absolute;
        height: 100%;
        transform: translateX(-100%);
    }
    #settings-panel.visible {
        transform: translateX(0);
    }
    header h1 {
        font-size: 1.2rem;
    }
    #open-settings {
        display: block; /* Se muestra en móvil */
    }
}

/* --- Estilos para Resultados Detallados --- */
.step-header {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.results-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
    border-left: 2px solid var(--border-color);
    padding-left: 1rem;
}

.result-item {
    background-color: var(--input-bg);
    border-radius: 8px;
    padding: 0.8rem 1rem;
    border: 1px solid #444;
}

.result-header {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.result-source {
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.8;
    flex-grow: 1;
}

.refine-search-btn {
    background: none;
    border: 1px solid var(--text-secondary);
    color: var(--text-secondary);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    font-size: 1rem;
    cursor: pointer;
    margin-right: 0.75rem;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.refine-search-btn:hover {
    background-color: var(--accent-primary);
    color: var(--background-main);
    border-color: var(--accent-primary);
}

.result-content {
    font-size: 0.95rem;
    line-height: 1.5;
}

.process-list {
    padding-left: 20px;
    margin: 0.5rem 0;
}

.total-duration {
    font-size: 0.8rem;
    opacity: 0.7;
    text-align: right;
    margin-top: 1rem;
}

.step-duration {
    font-size: 0.9rem;
    color: var(--text-primary);
    opacity: 0.6;
    margin-left: 0.5rem;
}

/* --- Estilos para el enlace de la fuente --- */
.source-link {
    color: var(--text-secondary); /* Mismo color que el texto de la fuente */
    text-decoration: none; /* Sin subrayado por defecto */
    transition: text-decoration 0.2s ease;
}

.source-link:hover {
    text-decoration: underline; /* Subrayado al pasar el ratón */
}