:root {
    --sidebar-bg: #111827;
    --sidebar-text: #94a3b8;
    --sidebar-text-active: #ffffff;
    --sidebar-border: #1f2937;
    --accent: #4f46e5;
    --accent-dark: #4338ca;
    --bg-page: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --success: #059669;
    --success-bg: #ecfdf5;
    --warning: #d97706;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Shell: sidebar + contenido ---------- */

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    padding: 20px 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 20px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-brand i {
    font-size: 20px;
    color: var(--accent);
}

.sidebar-brand span {
    color: #ffffff;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.2px;
}

.sidebar-seccion {
    padding: 16px 20px 6px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: #475569;
}

.selector-empresa {
    width: calc(100% - 40px);
    margin: 0 20px 4px;
    background: #1f2937;
    color: #ffffff;
    border: 1px solid var(--sidebar-border);
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 13px;
    font-family: inherit;
}

.selector-empresa option { color: #0f172a; }

.sidebar-empresa-fija {
    margin: 0 20px 4px;
    color: #ffffff;
    font-size: 13px;
    font-weight: 600;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 12px;
    flex-grow: 1;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 6px;
    color: var(--sidebar-text);
    font-size: 14px;
    text-decoration: none;
}

.sidebar-nav-link i { font-size: 16px; width: 18px; text-align: center; }

.sidebar-nav-link:hover {
    background: #1f2937;
    color: #ffffff;
    text-decoration: none;
}

.sidebar-nav-link.activo {
    background: var(--accent);
    color: #ffffff;
    font-weight: 600;
}

.sidebar-usuario {
    padding: 16px 20px 4px;
    border-top: 1px solid var(--sidebar-border);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-usuario-nombre {
    color: #e2e8f0;
    font-size: 13px;
    font-weight: 600;
}

.sidebar-usuario-salir {
    color: var(--sidebar-text);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.sidebar-usuario-salir:hover { color: #ffffff; }

.app-main {
    flex-grow: 1;
    padding: 28px 32px;
    max-width: 1200px;
}

/* ---------- Encabezados de página ---------- */

h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.pagina-encabezado {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

/* ---------- Filtros ---------- */

.filtros {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    flex-wrap: wrap;
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 14px 16px;
    border-radius: 10px;
}

.campo-filtro {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.campo-filtro label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.campo-filtro select, .campo-filtro input {
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    color: var(--text-primary);
}

.boton-primario {
    background: var(--accent);
    color: #ffffff;
    border: none;
    padding: 9px 20px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
}

.boton-primario:hover { background: var(--accent-dark); }

.boton-secundario {
    background: #ffffff;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 7px 16px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    font-family: inherit;
}

.boton-secundario:disabled { opacity: 0.4; cursor: default; }

/* ---------- Tabla ---------- */

.tabla-comprobantes {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    font-size: 13px;
}

.tabla-comprobantes th {
    text-align: left;
    padding: 11px 16px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-secondary);
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
}

.tabla-comprobantes td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

.tabla-comprobantes tr:last-child td { border-bottom: none; }

.resumen {
    display: block;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 13px;
}

.paginado {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 14px;
    font-size: 13px;
    color: var(--text-secondary);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-verde { background: var(--success-bg); color: var(--success); }
.badge-ambar { background: var(--warning-bg); color: var(--warning); }
.badge-rojo { background: var(--danger-bg); color: var(--danger); }
.badge-gris { background: #f1f5f9; color: var(--text-secondary); }

/* ---------- Dashboard ---------- */

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.kpi-card-cabecera {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kpi-icono {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    background: #eef2ff;
    color: var(--accent);
}

.kpi-card.kpi-verde .kpi-icono { background: var(--success-bg); color: var(--success); }
.kpi-card.kpi-ambar .kpi-icono { background: var(--warning-bg); color: var(--warning); }
.kpi-card.kpi-rojo .kpi-icono { background: var(--danger-bg); color: var(--danger); }

.kpi-valor {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.kpi-etiqueta {
    font-size: 12px;
    color: var(--text-secondary);
}

.paneles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
    align-items: start;
}

.panel {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px;
}

.panel h3 {
    margin: 0 0 14px 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.fila-barra {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 13px;
}

.fila-barra-etiqueta {
    width: 120px;
    flex-shrink: 0;
    color: var(--text-secondary);
}

.fila-barra-pista {
    flex-grow: 1;
    background: #f1f5f9;
    border-radius: 4px;
    height: 10px;
    overflow: hidden;
}

.fila-barra-relleno { height: 100%; border-radius: 4px; }

.barra-verde { background: var(--success); }
.barra-ambar { background: var(--warning); }
.barra-roja { background: var(--danger); }
.barra-gris { background: #cbd5e1; }

.fila-barra-valor {
    width: 28px;
    text-align: right;
    color: var(--text-secondary);
    font-weight: 600;
}

.tendencia {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 120px;
    padding-top: 8px;
}

.tendencia-columna {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    height: 100%;
    justify-content: flex-end;
}

.tendencia-barra {
    width: 100%;
    max-width: 18px;
    background: var(--accent);
    border-radius: 3px 3px 0 0;
}

.tendencia-etiqueta {
    font-size: 10px;
    color: var(--text-muted);
}

@media (max-width: 900px) {
    .paneles { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; flex-direction: row; flex-wrap: wrap; padding: 12px; }
    .sidebar-brand, .sidebar-empresa-fija, .selector-empresa, .sidebar-usuario { display: none; }
    .sidebar-nav { flex-direction: row; padding: 0; }
    .app-main { padding: 20px; }
}

/* ---------- Detalle de comprobante ---------- */

.detalle-volver {
    font-size: 12px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.pagina-encabezado h2 {
    display: flex;
    align-items: center;
    gap: 10px;
}

.detalle-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px 24px;
}

.detalle-grid > div {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.detalle-etiqueta {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-secondary);
}

.detalle-grid > div > span:last-child {
    font-size: 14px;
    color: var(--text-primary);
}

.detalle-mono {
    font-family: "Cascadia Code", Consolas, monospace;
    font-size: 12px !important;
}

.aviso-dgii, .aviso-error {
    margin-bottom: 16px;
    font-size: 13px;
}

.aviso-dgii { background: var(--warning-bg); color: #92400e; border: 1px solid #fde68a; }
.aviso-error { background: var(--danger-bg); color: #991b1b; border: 1px solid #fecaca; }

.qr-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.qr-imagen {
    width: 160px;
    height: 160px;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
}

/* ---------- Login ---------- */

.pagina-login {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: var(--sidebar-bg);
    margin: 0;
}

.login-caja {
    background: var(--card-bg);
    padding: 36px 32px;
    border-radius: 12px;
    width: 360px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.login-marca {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
}

.login-marca i { font-size: 22px; color: var(--accent); }

.login-marca span {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.login-caja h1 {
    margin: 0 0 24px 0;
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.login-caja .campo {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.login-caja label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.login-caja input {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
}

.login-caja input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.login-caja button {
    width: 100%;
    margin-top: 4px;
}

.login-error {
    background: var(--danger-bg);
    color: var(--danger);
    font-size: 13px;
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 16px;
}