:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --bg-dark: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --border: #334155;
    --sidebar-width: 250px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; background-color: var(--bg-dark); color: var(--text-main); line-height: 1.6; }

/* Layouts */
.layout { display: none; min-height: 100vh; }
.layout.active { display: flex; }

/* Public/Login */
.login-container { width: 100%; display: flex; align-items: center; justify-content: center; padding: 20px; }
.glass-card { background: rgba(30, 41, 59, 0.7); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 12px; padding: 40px; width: 100%; max-width: 450px; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); }
.subtitle { color: var(--text-muted); text-align: center; margin-bottom: 25px; font-size: 0.9rem; }
.view { display: none; animation: fadeIn 0.3s ease-in-out; }
.view.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Forms */
.form-group { margin-bottom: 20px; }
label { display: block; margin-bottom: 8px; font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
input, select, textarea { width: 100%; padding: 10px 12px; background-color: #0f172a; border: 1px solid var(--border); border-radius: 6px; color: white; font-family: 'Inter', sans-serif; transition: border-color 0.2s; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

/* Buttons */
.btn { display: inline-block; width: 100%; padding: 10px; border: none; border-radius: 6px; font-weight: 600; cursor: pointer; transition: all 0.2s; text-align: center; font-family: 'Inter', sans-serif; }
.btn-primary { background-color: var(--primary); color: white; }
.btn-primary:hover { background-color: var(--primary-hover); }
.btn-secondary { background-color: transparent; border: 1px solid var(--border); color: white; }
.btn-secondary:hover { background-color: rgba(255,255,255,0.05); }
.btn-danger { background-color: var(--danger); color: white; }
.btn-danger:hover { background-color: #dc2626; }
.btn-success { background-color: var(--success); color: white; }
.btn-sm { width: auto; padding: 6px 12px; font-size: 0.85rem; }
.mt-4 { margin-top: 1rem; } .mb-4 { margin-bottom: 1rem; }

/* Links */
.link-group { text-align: center; }
a { color: var(--primary); text-decoration: none; font-size: 0.9rem; }
a:hover { text-decoration: underline; }

/* App Layout */
.sidebar { width: var(--sidebar-width); background-color: var(--card-bg); border-right: 1px solid var(--border); padding: 20px 0; display: flex; flex-direction: column; }
.brand { font-weight: 700; font-size: 1.4rem; padding: 0 20px 20px; border-bottom: 1px solid var(--border); }
.user-info { padding: 15px 20px; font-size: 0.85rem; color: var(--text-muted); border-bottom: 1px solid var(--border); margin-bottom: 10px; }
.nav-links { list-style: none; }
.nav-item { display: block; padding: 12px 20px; color: var(--text-main); font-weight: 500; transition: background 0.2s; }
.nav-item:hover, .nav-item.active { background-color: rgba(255,255,255,0.05); color: var(--primary); text-decoration: none; border-left: 3px solid var(--primary); }
.main-content { flex: 1; padding: 30px; overflow-y: auto; }

/* App Views */
.app-view { display: none; animation: fadeIn 0.3s; }
.app-view.active { display: block; }
.header-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }

/* KPIs */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 30px; }
.kpi-card { background: var(--card-bg); padding: 20px; border-radius: 8px; border: 1px solid var(--border); }
.kpi-card h3 { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 10px; }
.kpi-value { font-size: 2rem; font-weight: 700; }
.kpi-card.warning .kpi-value { color: var(--warning); }

/* Progress */
.progress-container { width: 100%; background-color: #0f172a; border-radius: 4px; height: 8px; margin-top: 5px; overflow: hidden; }
.progress-bar { height: 100%; background-color: var(--primary); width: 0%; transition: width 0.3s ease; }

/* Tables */
.table-container { overflow-x: auto; background-color: var(--card-bg); border-radius: 8px; border: 1px solid var(--border); }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 15px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.data-table th { background-color: rgba(0,0,0,0.2); font-weight: 600; color: var(--text-muted); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover { background-color: rgba(255,255,255,0.02); }

/* Badges */
.badge { padding: 4px 8px; border-radius: 12px; font-size: 0.8rem; color: white; display: inline-block; }
.badge.pendiente, .badge.pending { background-color: #64748b; }
.badge.en-proceso, .badge.active { background-color: var(--primary); }
.badge.terminada { background-color: var(--success); }
.badge.abierta, .badge.alta, .badge.blocked { background-color: var(--danger); }
.badge.baja { background-color: #64748b; }
.badge.media { background-color: var(--warning); }

/* Process Grid */
.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.process-card { background: var(--card-bg); padding: 20px; border-radius: 8px; border: 1px solid var(--border); }
.process-card h3 { border-bottom: 1px solid var(--border); padding-bottom: 10px; margin-bottom: 15px; }

/* Modals */
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.6); backdrop-filter: blur(4px); align-items: center; justify-content: center; }
.modal.active { display: flex; }
.modal-content { background-color: var(--card-bg); padding: 30px; border-radius: 8px; width: 100%; max-width: 500px; position: relative; border: 1px solid var(--border); animation: fadeIn 0.2s; }
.close { position: absolute; right: 20px; top: 20px; font-size: 1.5rem; cursor: pointer; color: var(--text-muted); }

/* Toast */
#toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background-color: var(--card-bg); border-left: 4px solid var(--primary); padding: 15px 20px; border-radius: 4px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.5); color: white; min-width: 250px; animation: slideIn 0.3s forwards; opacity: 0; }
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOut { to { transform: translateX(100%); opacity: 0; } }

/* --- RESPONSIVIDAD (MÓVIL) --- */
@media (max-width: 768px) {
    .layout.active { flex-direction: column; }
    
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 10px 0;
    }
    
    .brand { padding: 0 15px 10px; font-size: 1.2rem; }
    .user-info { display: none; } /* Ocultar info usuario en móvil para ahorrar espacio */
    
    .nav-links { display: flex; overflow-x: auto; padding: 0 10px; }
    .nav-item { padding: 8px 15px; white-space: nowrap; border-left: none; border-bottom: 2px solid transparent; }
    .nav-item:hover, .nav-item.active { border-left: none; border-bottom: 2px solid var(--primary); }
    
    .main-content { padding: 15px; }
    
    .header-bar { flex-direction: column; align-items: flex-start; gap: 10px; }
    .header-bar div { width: 100%; display: flex; gap: 5px; flex-wrap: wrap; }
    .header-bar h2 { font-size: 1.3rem; }
    
    .kpi-grid { grid-template-columns: 1fr; }
    
    .process-grid { grid-template-columns: 1fr; }
    
    .modal-content { padding: 20px; width: 95%; margin: 10px; }
    
    /* Hacer que las tablas sean más amigables en móvil */
    .data-table th, .data-table td { padding: 10px 8px; font-size: 0.8rem; }
    
    /* Botones en móvil */
    .btn-sm { width: 100%; margin-bottom: 5px; }
}