@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

/* MODO CLARO (Default macOS) */
:root {
    --bg-app: #f5f5f7;
    --bg-sidebar: rgba(235, 235, 240, 0.8);
    --bg-content: #ffffff;
    --text-main: #1d1d1f;
    --text-muted: #86868b;
    --border-color: rgba(0, 0, 0, 0.08);
    --accent-color: #0066cc;
    --accent-hover: #0055b3;
    --item-hover: rgba(0, 0, 0, 0.05);
    --item-active: #0066cc;
    --icon-folder: #0a84ff;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
}

/* MODO OSCURO */
[data-theme="dark"] {
    --bg-app: #000000;
    --bg-sidebar: rgba(30, 30, 30, 0.75);
    --bg-content: #1e1e1e;
    --text-main: #f5f5f7;
    --text-muted: #86868b;
    --border-color: rgba(255, 255, 255, 0.1);
    --accent-color: #0a84ff;
    --accent-hover: #47a3ff;
    --item-hover: rgba(255, 255, 255, 0.1);
    --item-active: #0a84ff;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, 'Inter', sans-serif; }

body { background-color: var(--bg-content); color: var(--text-main); overflow: hidden; transition: background-color 0.3s, color 0.3s; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* LAYOUT PRINCIPAL */
.app-layout { display: flex; height: 100vh; width: 100vw; }

/* SIDEBAR (Estilo Finder) */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    display: flex; flex-direction: column; padding: 1rem;
    flex-shrink: 0; z-index: 50;
    transition: transform 0.3s ease;
}

.sidebar-header { margin-bottom: 2rem; padding: 0.5rem; display: flex; align-items: center; justify-content: space-between; }
.sidebar-header h2 { font-size: 1rem; font-weight: 600; display: flex; align-items: center; gap: 0.5rem; }

.menu-label { font-size: 0.7rem; color: var(--text-muted); font-weight: 600; margin: 1rem 0 0.3rem 0.5rem; }
.sidebar-menu { flex: 1; display: flex; flex-direction: column; gap: 0.2rem; }
.menu-item {
    display: flex; align-items: center; gap: 0.6rem; padding: 0.4rem 0.8rem;
    border-radius: 0.4rem; color: var(--text-main); text-decoration: none;
    font-size: 0.85rem; font-weight: 500; transition: background 0.2s;
}
.menu-item i { font-size: 1.1rem; color: var(--accent-color); }
.menu-item:hover { background: var(--item-hover); }
.menu-item.active { background: var(--item-active); color: white; }
.menu-item.active i { color: white; }

/* ÁREA PRINCIPAL */
.main-area { flex: 1; display: flex; flex-direction: column; background-color: var(--bg-content); overflow: hidden; position: relative; }

/* BARRA SUPERIOR (Toolbar) */
.top-toolbar {
    height: 52px; padding: 0 1rem; display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid var(--border-color); background-color: var(--bg-content);
    -webkit-app-region: drag; /* Efecto app nativa */
}

.toolbar-left { display: flex; align-items: center; gap: 1rem; }
.btn-icon { background: transparent; border: 1px solid transparent; color: var(--text-main); padding: 0.4rem; border-radius: 0.4rem; cursor: pointer; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; transition: background 0.2s; }
.btn-icon:hover { background: var(--item-hover); }
.btn-icon.bordered { border-color: var(--border-color); background: var(--bg-app); }

.breadcrumb { font-size: 0.85rem; font-weight: 500; display: flex; align-items: center; gap: 0.3rem; }
.breadcrumb i { color: var(--text-muted); font-size: 0.9rem; }

.toolbar-actions { display: flex; gap: 0.5rem; }
.btn-mac {
    background: var(--bg-app); border: 1px solid var(--border-color); color: var(--text-main);
    padding: 0.3rem 0.8rem; border-radius: 0.4rem; font-size: 0.8rem; font-weight: 500;
    cursor: pointer; display: flex; align-items: center; gap: 0.4rem; transition: background 0.2s; box-shadow: var(--shadow-sm);
}
.btn-mac:hover { background: var(--item-hover); }
.btn-mac.primary { background: var(--accent-color); color: white; border-color: transparent; }
.btn-mac.primary:hover { background: var(--accent-hover); }

/* GRILLA DE ARCHIVOS */
.explorer-body { flex: 1; padding: 1.5rem; overflow-y: auto; }
.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 1rem; }

.file-card {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    padding: 0.8rem; border-radius: 0.5rem; cursor: pointer; text-decoration: none; color: inherit;
    border: 1px solid transparent; transition: background 0.1s;
}
.file-card:hover { background: var(--item-hover); border-color: var(--border-color); }
.file-card i.icon-file { font-size: 3.5rem; margin-bottom: 0.5rem; }
.file-name { font-size: 0.8rem; font-weight: 500; width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-size { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.2rem; }

/* RESPONSIVE MÓVIL */
.mobile-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); z-index: 40; backdrop-filter: blur(2px); }
.btn-menu { display: none; }

@media (max-width: 768px) {
    .btn-menu { display: flex; }
    .sidebar { position: fixed; top: 0; bottom: 0; left: 0; transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .mobile-overlay.active { display: block; }
    .file-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); }
    .toolbar-actions .btn-mac span { display: none; } /* Oculta el texto del botón en móvil, deja solo el icono */
}
/* =========================================
   MODAL DE SUBIDA (ESTILO MAC OS)
   ========================================= */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.4); backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
    z-index: 100;
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }

.modal-content {
    background: var(--bg-content);
    border: 1px solid var(--border-color);
    border-radius: 1rem; width: 90%; max-width: 400px;
    padding: 2rem; text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    transform: translateY(20px); transition: transform 0.3s ease;
}
.modal-overlay.active .modal-content { transform: translateY(0); }

.modal-content h3 { margin-bottom: 0.5rem; font-size: 1.2rem; }
.modal-content p { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 1.5rem; }

/* Zona de arrastrar y soltar (Dropzone) */
.drop-zone {
    border: 2px dashed var(--border-color); border-radius: 0.8rem;
    padding: 2rem 1rem; cursor: pointer; transition: all 0.2s;
    background: var(--bg-app); margin-bottom: 1.5rem;
}
.drop-zone:hover, .drop-zone.dragover { border-color: var(--accent-color); background: var(--item-hover); }
.drop-zone i { font-size: 2.5rem; color: var(--accent-color); margin-bottom: 0.5rem; }
.drop-zone span { display: block; font-size: 0.9rem; font-weight: 500; }

/* Barra de progreso */
.progress-container { display: none; margin-bottom: 1.5rem; text-align: left; }
.progress-info { display: flex; justify-content: space-between; font-size: 0.8rem; margin-bottom: 0.3rem; font-weight: 500;}
.progress-bar-bg { width: 100%; height: 8px; background: var(--border-color); border-radius: 10px; overflow: hidden; }
.progress-bar-fill { height: 100%; width: 0%; background: var(--accent-color); border-radius: 10px; transition: width 0.2s ease; }

.modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }