:root {
    --bg-main: #0b0f19;       /* Fondo oscuro profundo */
    --bg-card: #151d30;       /* Fondo de tarjetas y sidebar */
    --border-color: #222f4c;  /* Bordes sutiles azulados */
    --text-primary: #f3f4f6;  /* Texto claro */
    --text-secondary: #9ca3af;/* Texto secundario gris */
    --accent: #3b82f6;        /* Azul brillante */
    --accent-hover: #2563eb;
    --success: #10b981;       /* Verde */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100%;
    width: 100%;
}

/* Sidebar Izquierdo fijo de 280px */
.sidebar {
    width: 280px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px;
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-indicator.online {
    background-color: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.control-section {
    margin-bottom: 28px;
}

.control-section h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

/* Botones */
.btn-primary {
    width: 100%;
    padding: 12px;
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

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

/* Lista de filtros simulada */
.filter-list {
    list-style: none;
}

.filter-list li {
    padding: 10px 12px;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    margin-bottom: 4px;
}

.filter-list li:hover, .filter-list li.active {
    background-color: var(--bg-main);
    color: var(--text-primary);
}

/* Contenido Principal */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: 32px;
    overflow: hidden;
}

.main-header {
    margin-bottom: 24px;
}

.main-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
}

/* Rejilla de Tarjetas (CSS Grid auto-ajustable) */
.widget-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    align-content: start;
    height: 100%;
    overflow-y: auto;
}

/* Estilo de Tarjetas */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.card-timestamp {
    display: inline-block;
    margin-top: 14px;
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
}

/* =============================================================================
   SIDEBAR FOOTER - Proyecto y Admin
   ============================================================================= */
.sidebar-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.project-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 0.85rem;
}

.project-label-text {
    color: var(--text-secondary);
}

.project-label {
    color: var(--accent);
    font-weight: 600;
    background: var(--bg-main);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.btn-admin {
    width: 100%;
    padding: 10px;
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
}

.btn-admin:hover {
    background-color: var(--bg-main);
    color: var(--text-primary);
    border-color: var(--accent);
}

/* =============================================================================
   MODAL DE ADMINISTRACIÓN
   ============================================================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-select {
    cursor: pointer;
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.btn-outline {
    padding: 10px 16px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-outline:hover {
    background: var(--bg-main);
    border-color: var(--text-secondary);
}

.modal-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 16px 0;
}

.project-selector {
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-label-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.project-select {
    flex: 1;
    min-width: 0;
    padding: 6px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.8rem;
    cursor: pointer;
    text-overflow: ellipsis;
}

.ctas-dropdown {
    position: absolute;
    z-index: 10000;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
    max-height: 220px;
    overflow-y: auto;
    min-width: 260px;
    display: none;
    margin-top: 2px;
}

.ctas-item {
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.82rem;
    display: flex;
    gap: 10px;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.ctas-item:last-child {
    border-bottom: none;
}

.ctas-item:hover,
.ctas-item.active {
    background: var(--bg-main);
}

.ctas-item .ctas-cod {
    font-weight: 700;
    color: var(--accent);
    min-width: 40px;
}

.ctas-item .ctas-nombre {
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.as-apuntes-table td,
.pl-lineas td {
    position: relative;
}