/* =========================================
   VARIABLES & RESET
   ========================================= */
:root {
    --sidebar-width: 280px;
    --bg-dark: #212529;
    --bg-darker: #0b1220;
    --bg-chat: #2b3035;
    --border-color: #373b3e;
    --accent-color: #0d6efd;
}

body, html {
    height: 100%;
    margin: 0;
    overflow: hidden; /* Crucial: Previene el scroll de toda la página */
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 304 304' width='304' height='304'%3E%3Cpath fill='%239eaab5' fill-opacity='0.05' d='M44.1 224a5 5 0 1 1 0 2H0v-2h44.1zm160 48a5 5 0 1 1 0 2H82v-2h122.1zm57.8-46a5 5 0 1 1 0-2H304v2h-42.1zm0 16a5 5 0 1 1 0-2H304v2h-42.1zm6.2-114a5 5 0 1 1 0 2h-86.2a5 5 0 1 1 0-2h86.2zm-256-48a5 5 0 1 1 0 2H0v-2h12.1zm185.8 34a5 5 0 1 1 0-2h86.2a5 5 0 1 1 0 2h-86.2zM258 12.1a5 5 0 1 1-2 0V0h2v12.1zm-64 208a5 5 0 1 1-2 0v-54.2a5 5 0 1 1 2 0v54.2zm48-198.2V80h62v2h-64V21.9a5 5 0 1 1 2 0zm16 16V64h46v2h-48V37.9a5 5 0 1 1 2 0zm-128 96V208h16v12.1a5 5 0 1 1-2 0V210h-16v-76.1a5 5 0 1 1 2 0zm-5.9-21.9a5 5 0 1 1 0 2H114v48H85.9a5 5 0 1 1 0-2H112v-48h12.1zm-6.2 130a5 5 0 1 1 0-2H176v-74.1a5 5 0 1 1 2 0V242h-60.1zm-16-64a5 5 0 1 1 0-2H114v48h10.1a5 5 0 1 1 0 2H112v-48h-10.1zM66 284.1a5 5 0 1 1-2 0V274H50v30h-2v-32h18v12.1zM236.1 176a5 5 0 1 1 0 2H226v94h48v32h-2v-30h-48v-98h12.1zm25.8-30a5 5 0 1 1 0-2H274v44.1a5 5 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}

/* =========================================
   LAYOUT STRUCTURE
   ========================================= */
/* Contenedor principal de la app que usa Flexbox */
.app-wrapper {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Barra lateral fija via flex */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-darker);
    color: #fff;
    display: flex;
    flex-direction: column;
    flex-shrink: 0; /* No encoger */
    z-index: 100;
    box-shadow: 2px 0 5px rgba(0,0,0,0.3);
    overflow-y: auto; /* Scroll interno */
}

/* Contenido principal que ocupa el resto */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden; /* Contiene el scroll de los hijos */
    position: relative;
}

/* =========================================
   SIDEBAR STYLES
   ========================================= */
.sidebar .nav-link {
    color: #cbd5e1;
    border-radius: 6px;
    margin-bottom: 2px;
    transition: all 0.2s;
}
.sidebar .nav-link:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
}
.sidebar .nav-link.active {
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-weight: 600;
}

/* =========================================
   CHAT AREA
   ========================================= */
/* Ventana de chat que hace scroll */
.chat-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem;
    padding-bottom: 0;
    display: flex;
    flex-direction: column;
}

.chat-window {
    /* Eliminamos bordes feos y background redundante */
    background-color: transparent; 
    border: none !important;
}

/* Input Area fijo abajo */
.input-area {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
    flex-shrink: 0;
}

/* =========================================
   MESSAGES
   ========================================= */
.bubble {
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 85%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.message.user .bubble {
    background-color: var(--accent-color);
    color: white;
    border-top-right-radius: 2px !important;
}
.bubble-assistant {
    background-color: var(--bg-chat) !important;
    color: #e0e0e0 !important;
    border: 1px solid var(--border-color) !important;
    border-top-left-radius: 2px !important;
}
.message.system .bubble {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.2);
    font-size: 0.8rem;
}

/* =========================================
   CODE & MARKDOWN
   ========================================= */
.bubble pre {
    background-color: #1a1d20;
    border: 1px solid #444;
    border-radius: 6px;
    padding: 12px;
    margin: 10px 0;
    overflow-x: auto;
}
.bubble code {
    font-family: 'Consolas', 'Monaco', monospace;
    color: #e685b5;
}
.bubble pre code {
    color: #a6e22e;
}
.bubble table {
    width: 100%;
    margin-bottom: 1rem;
    color: #fff;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.bubble table th, .bubble table td {
    padding: 0.6rem;
    border: 1px solid #495057;
}
.bubble table th { background-color: #1a1d20; }

/* =========================================
   FILES PANEL (RIGHT)
   ========================================= */
.files-panel {
    border-left: 1px solid var(--border-color);
    background: rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    height: 100%;
}
.files-list-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem;
}

/* =========================================
   UTILITIES & SCROLLBARS
   ========================================= */
.cursor-pointer { cursor: pointer; }

/* Estilización de Scrollbar para Webkit */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #495057; border-radius: 4px; border: 2px solid var(--bg-dark); }
::-webkit-scrollbar-thumb:hover { background: #6c757d; }

/* Animación Rainbow */
.rainbow { animation: rainbow 5s infinite; }
@keyframes rainbow {
    0% {color: orange;} 20% {color: red;} 40% {color: yellow;} 
    60% {color: green;} 80% {color: DeepPink;} 100% {color: orange;}
}

/* Media Query Simple para Móvil */
@media (max-width: 768px) {
    .app-wrapper { flex-direction: column; height: auto; min-height: 100vh; overflow: auto; }
    .sidebar { width: 100%; height: auto; padding-bottom: 1rem; }
    .main-content { height: auto; overflow: visible; }
    .chat-container { height: 60vh; }
    .files-panel { height: auto; border-left: none; border-top: 1px solid var(--border-color); }
}