/* Estilos globales y de base */
:root {
    --primary-color: #005baa;
    --secondary-color: #f1f5f9;
    --text-color: #1e293b;
    --card-bg: #ffffff;
    --chat-bg: #e5e7eb;
    --user-message-bg: #dbeafe;
    --bot-message-bg: #ffffff;
    --border-color: #e2e8f0;
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 20px rgba(0, 0, 0, 0.15);
}

body {
    margin: 0;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, "Roboto", "Helvetica Neue", Arial, sans-serif;
    background: var(--secondary-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Estilos de la landing page (sección Hero) */
.hero {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #003366 0%, #005baa 100%);
    color: white;
    text-align: center;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out forwards;
}

.logo-container {
    margin-bottom: 2em;
}

.logo-container img {
    width: 200px;
    height: auto;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 0.5em;
    font-weight: 700;
    line-height: 1.1;
}

.subheadline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.8;
    margin-bottom: 2em;
}

.start-chat-button {
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    background-color: var(--card-bg);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: var(--shadow-light);
}

.start-chat-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* Animación para la aparición del contenido */
@keyframes fadeInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Estilos del chat flotante */
#chat-widget {
    display: none; /* Oculto por defecto, JS lo muestra */
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: min(90vw, 400px);
    height: min(80vh, 600px);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    flex-direction: column;
    z-index: 1000;
    overflow: hidden;
    animation: scaleUp 0.3s ease-out forwards;
}

@keyframes scaleUp {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

#chat-header {
    background-color: var(--primary-color);
    color: white;
    padding: 16px 20px;
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.close-chat {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.close-chat:hover {
    transform: rotate(90deg);
}

#chat-body {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    font-size: 0.95em;
    background-color: var(--chat-bg);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* Estilos de los mensajes del chat */
.message {
    padding: 10px 15px;
    border-radius: 12px;
    word-wrap: break-word;
    max-width: 85%;
    position: relative;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.message.user {
    align-self: flex-end;
    background-color: var(--user-message-bg);
    color: var(--text-color);
    border-bottom-right-radius: 2px;
}

.message.bot {
    align-self: flex-start;
    background-color: var(--bot-message-bg);
    color: var(--text-color);
    border-bottom-left-radius: 2px;
}

.message p { margin: 2px 0; }
.message ul, .message ol { margin: 4px 0; padding-left: 16px; }
.message li { margin: 2px 0; }
.message a { text-decoration: underline; word-break: break-word; }


/* Estilos del input y botón de enviar */
#chat-input {
    display: flex;
    padding: 15px 20px;
    background-color: white;
    border-top: 1px solid var(--border-color);
    gap: 10px;
}

#chat-input input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

#chat-input input:focus {
    border-color: var(--primary-color);
}

#chat-input button {
    padding: 12px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#chat-input button:disabled {
    background-color: #a1a1aa;
    cursor: not-allowed;
}

/* Globo del asistente */
.atm-bubble {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--card-bg);
    border: 2px solid var(--primary-color);
    border-radius: 16px;
    padding: 16px;
    width: 300px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-medium);
    z-index: 9999;
}

.atm-avatar {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 50%;
    margin-right: 12px;
}

.atm-message p {
    font-size: 15px;
    color: var(--text-color);
    margin: 0;
    line-height: 1.4em;
}

.atm-open-button {
    margin-top: 10px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 15px;
    font-size: 1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.atm-open-button:hover {
    background-color: #004f99;
}

/* Estilos para el loader y mensajes de sistema */
.loader {
    font-style: italic;
    color: #555;
}

/* Estilos para el markdown en el chat body */
#chat-body strong {
    font-weight: 700;
    color: var(--primary-color);
}

#chat-body ul, #chat-body ol {
    margin: 0;
    padding-left: 20px;
}
#chat-body li {
    margin-bottom: 5px;
}