:root {
  --bg: #f5f6f8; --card: #fff; --ink: #1c2230; --muted: #6b7280;
  --line: #e2e5ea; --brand: #1f5f8b; --brand-d: #164a6e;
  --ok: #1f8b52; --warn: #b45309; --danger: #b42318;
  --chip: #eef2f7;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Segoe UI', system-ui, Arial, sans-serif; background: var(--bg); color: var(--ink); }
.hidden { display: none !important; }
.muted { color: var(--muted); } .small { font-size: 12px; }
.error { color: var(--danger); font-size: 13px; margin-top: 8px; min-height: 18px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 1px 3px rgba(0,0,0,.04); }

/* Botones */
.btn { border: 1px solid var(--line); background: #fff; color: var(--ink); padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 14px; }
.btn:hover { background: #f0f2f5; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: var(--brand-d); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.danger { color: var(--danger); border-color: #f0c8c4; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.input, input:not([type=checkbox]), select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; font-family: inherit; background: #fff;
}
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 0; }
label input, label select, label textarea { margin-top: 4px; }

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; }
.login-card { padding: 30px; width: 340px; }
.login-card h1 { margin: 0; font-size: 26px; } .login-card h1 span { color: var(--brand); }
.login-card button { width: 100%; margin-top: 16px; }

/* Topbar */
.topbar { display: flex; align-items: center; gap: 20px; padding: 10px 20px; background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; font-size: 18px; } .brand span { color: var(--brand); }
.tabs { display: flex; gap: 4px; margin-left: 10px; }
.tab { border: none; background: transparent; padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 14px; color: var(--muted); }
.tab.active { background: var(--chip); color: var(--ink); font-weight: 600; }
.user-box { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* Vistas */
.view { padding: 18px 20px; }
#view-ensamblar { display: grid; grid-template-columns: 1fr 380px; gap: 18px; align-items: start; }
.panel-head { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }
.chk-inline { display: flex; align-items: center; gap: 6px; white-space: nowrap; margin: 0; font-size: 13px; }
.chk-inline input { width: auto; }

/* Módulos */
.modulos { display: flex; flex-direction: column; gap: 8px; }
.grupo-title { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 14px 2px 2px; }
.modulo { display: flex; gap: 10px; padding: 10px 12px; background: #fff; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.modulo:hover { border-color: #c9d3dd; }
.modulo.sel { border-color: var(--brand); background: #f2f8fc; }
.modulo input { width: auto; margin-top: 3px; }
.modulo .m-main { flex: 1; }
.modulo .m-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.modulo .m-id { font-family: monospace; font-size: 12px; color: var(--muted); }
.modulo .m-tit { font-weight: 600; font-size: 14px; }
.modulo .m-res { font-size: 12.5px; color: #4b5563; margin-top: 3px; }

/* Estado badges */
.badge { font-size: 11px; padding: 2px 7px; border-radius: 20px; border: 1px solid transparent; white-space: nowrap; }
.badge.borrador { background: #f3f4f6; color: #4b5563; }
.badge.en_revision { background: #fef3c7; color: var(--warn); }
.badge.vigente { background: #dcfce7; color: var(--ok); }
.badge.deprecado { background: #fee2e2; color: var(--danger); text-decoration: line-through; }

/* Panel derecho */
.panel-right { padding: 16px; position: sticky; top: 74px; }
.panel-right h2 { margin: 0 0 6px; font-size: 16px; }
.seleccion-head { margin-top: 14px; font-size: 13px; color: var(--muted); }
.seleccion { list-style: none; padding: 0; margin: 6px 0; max-height: 240px; overflow: auto; }
.seleccion li { display: flex; align-items: center; gap: 6px; font-size: 12.5px; padding: 4px 0; border-bottom: 1px dashed var(--line); }
.seleccion li .x { margin-left: auto; cursor: pointer; color: var(--danger); }
.seleccion .mono { font-family: monospace; color: var(--muted); }
.acciones-export { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }

/* Tablas de gestión */
.gest-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.gest-head h2 { margin: 0; font-size: 18px; margin-right: auto; }
.gest-head .input { max-width: 320px; }
.tabla { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.tabla th, .tabla td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.tabla th { background: #f7f8fa; color: var(--muted); font-weight: 600; }
.tabla td .mono { font-family: monospace; font-size: 12.5px; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.row-actions .btn { padding: 4px 9px; font-size: 12.5px; }

/* Modal */
.modal { position: fixed; inset: 0; background: rgba(10,15,25,.45); display: grid; place-items: center; z-index: 20; padding: 20px; }
.modal-card { width: min(760px, 96vw); max-height: 90vh; overflow: auto; padding: 18px 20px; }
.modal-head { display: flex; align-items: center; }
.modal-head h3 { margin: 0; margin-right: auto; }
.modal-body textarea { min-height: 320px; font-family: monospace; font-size: 12.5px; line-height: 1.45; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal-foot { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }