/* ============================================================
   RSD ASISTENCIA - UI de la app (listado, editor, catálogo)
   ============================================================ */

:root {
  --rsd-primary: #1e3a8a;
  --rsd-secondary: #3b82f6;
  --rsd-accent: #f59e0b;
  --rsd-success: #10b981;
  --rsd-danger: #ef4444;
  --rsd-warning: #f59e0b;
  --rsd-dark: #0f172a;
  --rsd-text: #1f2937;
  --rsd-muted: #6b7280;
  --rsd-border: #e5e7eb;
  --rsd-bg: #f8fafc;
  --rsd-bg-card: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  color: var(--rsd-text);
  background: var(--rsd-bg);
  min-height: 100vh;
}

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

/* ============================================================
   NAVEGACIÓN SUPERIOR
   ============================================================ */

.app-header {
  background: linear-gradient(135deg, var(--rsd-primary) 0%, var(--rsd-secondary) 100%);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
  position: sticky;
  top: 0;
  z-index: 50;
}
.app-header .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
}
.app-header .brand img { height: 36px; background: #fff; padding: 4px 8px; border-radius: 4px; }
.app-header nav { display: flex; gap: 6px; }
.app-header nav a {
  color: #fff;
  padding: 8px 14px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  transition: background .15s;
}
.app-header nav a:hover { background: rgba(255,255,255,.15); }
.app-header nav a.active { background: rgba(255,255,255,.22); font-weight: 600; }

/* ============================================================
   CONTENEDOR PRINCIPAL
   ============================================================ */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

.page-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: -12px -24px 12px;
  padding: 12px 24px;
  position: sticky;
  top: 64px; /* justo debajo de .app-header (que es sticky a top:0) */
  z-index: 40;
  background: var(--rsd-bg);
  box-shadow: 0 4px 12px -8px rgba(0,0,0,.18), 0 1px 0 var(--rsd-border);
  flex-wrap: wrap;
  gap: 10px;
}
.page-title h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  color: var(--rsd-dark);
  letter-spacing: -0.5px;
}
.page-title .sub {
  font-size: 13px;
  color: var(--rsd-muted);
  margin-top: 3px;
}

/* ============================================================
   BOTONES
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all .15s;
  background: #fff;
  color: var(--rsd-text);
  border-color: var(--rsd-border);
}
.btn:hover { background: var(--rsd-bg); }
.btn.primary {
  background: var(--rsd-primary);
  color: #fff;
  border-color: var(--rsd-primary);
}
.btn.primary:hover { background: #1e40af; }
.btn.success { background: var(--rsd-success); color: #fff; border-color: var(--rsd-success); }
.btn.danger { background: var(--rsd-danger); color: #fff; border-color: var(--rsd-danger); }
.btn.danger:hover { background: #dc2626; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.btn.lg { padding: 12px 22px; font-size: 15px; }

/* ============================================================
   TARJETAS Y TABLAS
   ============================================================ */

.card {
  background: var(--rsd-bg-card);
  border: 1px solid var(--rsd-border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.card h2, .card h3 {
  margin: 0 0 14px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--rsd-dark);
}

.toolbar-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar-row .grow { flex: 1; }

table.data {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
  border: 1px solid var(--rsd-border);
}
table.data thead th {
  background: var(--rsd-bg);
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--rsd-muted);
  border-bottom: 1px solid var(--rsd-border);
}
table.data tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--rsd-border);
  font-size: 14px;
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover { background: var(--rsd-bg); }
table.data .num { text-align: right; font-variant-numeric: tabular-nums; }
table.data .acciones { text-align: right; white-space: nowrap; }

/* ============================================================
   FORMULARIOS
   ============================================================ */

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 18px;
}
.form-grid .full { grid-column: span 2; }

.field {
  display: flex;
  flex-direction: column;
}
.field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--rsd-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 5px;
}
.field input, .field select, .field textarea {
  padding: 9px 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 7px;
  font-size: 14px;
  font-family: inherit;
  color: var(--rsd-text);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--rsd-secondary);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.field textarea { resize: vertical; min-height: 70px; }
.field input[type="number"] { font-variant-numeric: tabular-nums; }
.field .help { font-size: 11px; color: var(--rsd-muted); margin-top: 4px; }

/* ============================================================
   BADGES (estados)
   ============================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: #e5e7eb;
  color: #374151;
}
.badge.borrador  { background: #f1f5f9; color: #64748b; }
.badge.enviado   { background: #dbeafe; color: #1e40af; }
.badge.aceptado  { background: #d1fae5; color: #065f46; }
.badge.rechazado { background: #fee2e2; color: #991b1b; }
.badge.pendiente { background: #fef3c7; color: #92400e; }

/* ============================================================
   EDITOR DE PRESUPUESTO
   ============================================================ */

.editor-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 18px;
}
@media (max-width: 1100px) {
  .editor-layout { grid-template-columns: 1fr; }
}

.capitulo-block {
  background: #fff;
  border: 1px solid var(--rsd-border);
  border-radius: 10px;
  margin-bottom: 14px;
  overflow: hidden;
}
.capitulo-block .head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: linear-gradient(90deg, var(--rsd-primary), var(--rsd-secondary));
  color: #fff;
}
.capitulo-block .head .codigo {
  width: 32px; height: 32px;
  background: rgba(255,255,255,.25);
  border-radius: 6px;
  font-weight: 800;
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
}
.capitulo-block .head .nombre { flex: 1; font-weight: 700; font-size: 15px; }
.capitulo-block .head .nombre-input {
  flex: 1;
  font-weight: 700;
  font-size: 15px;
  font-family: inherit;
  color: #fff;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 5px 8px;
  margin: 0;
  outline: none;
  width: auto;
  min-width: 0;
  transition: background .15s, border-color .15s;
}
.capitulo-block .head .nombre-input::placeholder { color: rgba(255,255,255,.55); }
.capitulo-block .head .nombre-input:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.2);
}
.capitulo-block .head .nombre-input:focus {
  background: rgba(255,255,255,.18);
  border-color: rgba(255,255,255,.55);
  box-shadow: 0 0 0 2px rgba(255,255,255,.12);
}

/* Filas editables de "Forma de pago" */
.forma-pago-row {
  display: grid;
  grid-template-columns: 90px auto 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 7px;
}
.forma-pago-row input[type="number"],
.forma-pago-row input[type="text"] {
  padding: 8px 10px;
  border: 1px solid var(--rsd-border);
  border-radius: 6px;
  font-size: 13.5px;
  font-family: inherit;
  background: #fff;
}
.forma-pago-row input[type="number"]:focus,
.forma-pago-row input[type="text"]:focus {
  outline: none;
  border-color: var(--rsd-primary);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, .15);
}
.forma-pago-row .pct-sufijo {
  color: var(--rsd-muted);
  font-weight: 600;
  margin-left: -4px;
}
.forma-pago-row button.danger {
  background: #fee2e2;
  border: 1px solid #fecaca;
  color: #b91c1c;
}
.forma-pago-row button.danger:hover { background: #fecaca; }
.capitulo-block .head .total {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: rgba(255,255,255,.2);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 14px;
}
.capitulo-block .head button {
  background: transparent;
  border: 1px solid rgba(255,255,255,.4);
  color: #fff;
  padding: 5px 10px;
  font-size: 12px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: 600;
}
.capitulo-block .head button:hover { background: rgba(255,255,255,.15); }

.partida-header {
  display: grid;
  grid-template-columns: 56px minmax(220px, 1fr) 50px 78px 88px 56px 94px 64px;
  gap: 8px;
  padding: 8px 16px;
  background: var(--rsd-bg);
  border-top: 1px solid var(--rsd-border);
  border-bottom: 1px solid var(--rsd-border);
  font-size: 11px;
  font-weight: 700;
  color: var(--rsd-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.partida-header .num { text-align: right; }
.partida-header .center { text-align: center; }

.partida-row {
  display: grid;
  grid-template-columns: 56px minmax(220px, 1fr) 50px 78px 88px 56px 94px 64px;
  gap: 8px;
  padding: 10px 16px;
  align-items: center;
  border-top: 1px solid var(--rsd-border);
}
.partida-row .codigo-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: stretch;
}
.partida-row .codigo-cell input { width: 100%; }
.origen-tag {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-align: center;
  text-transform: uppercase;
  width: 100%;
}
.origen-tag.pro  { background: #d1fae5; color: #065f46; }
.origen-tag.rsd  { background: #fef3c7; color: #92400e; }
.origen-tag.ayto { background: #dbeafe; color: #1e3a8a; }
.origen-tag.ia   { background: #ede9fe; color: #5b21b6; }
.origen-tag.man  { background: #e5e7eb; color: #4b5563; }
.origen-tag.competidor { background: #fed7aa; color: #9a3412; }
.origen-tag.internet { background: #d1fae5; color: #065f46; }
.partida-row input, .partida-row select {
  padding: 6px 8px;
  border: 1px solid var(--rsd-border);
  border-radius: 5px;
  font-size: 13px;
  font-family: inherit;
  width: 100%;
  min-width: 0;
}
.partida-row .titulo-cell { min-width: 0; }
.partida-row .titulo-cell input { font-weight: 600; margin-bottom: 4px; width: 100%; min-width: 0; }
.partida-row .titulo-cell .titulo-area {
  width: 100%;
  min-width: 0;
  font-weight: 600;
  font-size: 13px;
  color: var(--rsd-dark);
  margin-bottom: 4px;
  padding: 6px 8px;
  border: 1px solid var(--rsd-border);
  border-radius: 5px;
  font-family: inherit;
  resize: none;
  line-height: 1.4;
  /* JS hace el auto-ajuste por scrollHeight; field-sizing como fallback */
  field-sizing: content;
  overflow: hidden;
  word-wrap: break-word;
  white-space: pre-wrap;
}
.partida-row .titulo-cell .titulo-area:focus {
  outline: none;
  border-color: var(--rsd-primary);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, .12);
}
.partida-row .titulo-cell textarea {
  width: 100%;
  font-size: 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 5px;
  padding: 6px 8px;
  color: var(--rsd-muted);
  resize: vertical;
  min-height: 40px;
  font-family: inherit;
  /* Auto-ajuste al contenido en navegadores modernos */
  field-sizing: content;
  line-height: 1.45;
  overflow: hidden;
}
/* Descripción rich-text (contenteditable). Mismo aspecto que un
   textarea pero permite formato (color de fondo de fragmentos). */
.partida-row .titulo-cell .descripcion-edit {
  width: 100%;
  font-size: 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 5px;
  padding: 6px 8px;
  color: var(--rsd-muted);
  min-height: 40px;
  font-family: inherit;
  line-height: 1.45;
  outline: none;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.partida-row .titulo-cell .descripcion-edit:focus {
  border-color: var(--rsd-primary);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, .12);
}
.partida-row .titulo-cell .descripcion-edit:empty::before {
  content: attr(data-placeholder);
  color: #9ca3af;
  pointer-events: none;
}
.partida-row .num input { text-align: right; font-variant-numeric: tabular-nums; }
.partida-row .descuento-sel {
  width: 100%;
  padding: 6px 4px;
  border: 1px solid var(--rsd-border);
  border-radius: 5px;
  font-size: 12px;
  font-family: inherit;
  background: #fff;
  text-align: center;
  cursor: pointer;
}
.partida-row .descuento-sel:focus {
  outline: none;
  border-color: var(--rsd-primary);
}
/* Cuando hay descuento aplicado, resaltar visualmente el select */
.partida-row .descuento-sel:not([data-empty]):not(:has(option[value="0"]:checked)) {
  background: #fef3c7;
  border-color: #fcd34d;
  font-weight: 700;
  color: #92400e;
}
.partida-row .importe {
  text-align: right;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--rsd-primary);
}
.partida-row .borrar {
  background: transparent;
  border: none;
  color: var(--rsd-danger);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
}
.partida-row .borrar:hover { background: #fee2e2; border-radius: 4px; }

/* Acciones por partida en la última columna: ↑↓ / 🎨📝 / ✕ */
.partida-row .acciones-partida {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-rows: 22px;
  gap: 3px;
  width: 64px;
  height: 100%;
  align-content: center;
}
.partida-row .acciones-partida button {
  background: transparent;
  border: 1px solid var(--rsd-border);
  border-radius: 4px;
  color: var(--rsd-muted);
  font-size: 11px;
  padding: 0;
  cursor: pointer;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.partida-row .acciones-partida .mover { font-size: 13px; }
.partida-row .acciones-partida .mover:hover:not(:disabled) {
  background: var(--rsd-bg);
  color: var(--rsd-primary);
  border-color: var(--rsd-primary);
}
.partida-row .acciones-partida .mover:disabled {
  opacity: .35;
  cursor: not-allowed;
}
.partida-row .acciones-partida .color-btn,
.partida-row .acciones-partida .nota-btn,
.partida-row .acciones-partida .hl-btn { font-size: 12px; }
.partida-row .acciones-partida .color-btn:hover,
.partida-row .acciones-partida .nota-btn:hover,
.partida-row .acciones-partida .hl-btn:hover {
  background: var(--rsd-bg);
  border-color: var(--rsd-primary);
}
.partida-row .acciones-partida .color-btn.activo,
.partida-row .acciones-partida .nota-btn.activo {
  background: #fef3c7;
  border-color: #fcd34d;
}
.partida-row .acciones-partida .hl-btn:hover {
  background: #fef08a;
  border-color: #facc15;
}
.partida-row .acciones-partida .guardar-cat-btn {
  font-size: 12px;
}
.partida-row .acciones-partida .guardar-cat-btn:hover {
  background: #d1fae5;
  border-color: #10b981;
  color: #065f46;
}
.partida-row .acciones-partida .borrar {
  grid-column: 1 / -1;
  font-size: 14px;
  padding: 0;
  border: 1px solid transparent;
  color: var(--rsd-danger);
  background: transparent;
}
.partida-row .acciones-partida .borrar:hover {
  background: #fee2e2;
  border-color: #fecaca;
}

/* Resaltado por color de la partida */
.partida-row.resaltada-amarillo { background: #fef3c7; }
.partida-row.resaltada-verde    { background: #d1fae5; }
.partida-row.resaltada-azul     { background: #dbeafe; }
.partida-row.resaltada-rosa     { background: #fce7f3; }
.partida-row.resaltada-naranja  { background: #fed7aa; }

/* Bloque de nota al cliente debajo de la partida (en el editor) */
.nota-cliente-block {
  background: linear-gradient(90deg, #fef3c7, #fffbeb);
  border-left: 4px solid #f59e0b;
  padding: 10px 14px 10px 16px;
  margin: 0 16px 4px 76px;
  border-radius: 0 8px 8px 0;
  font-size: 12.5px;
  color: #78350f;
  line-height: 1.5;
}
.nota-cliente-block strong { color: #92400e; }

/* Popup paleta de colores */
.paleta-color-popup {
  position: absolute;
  background: #fff;
  border: 1px solid var(--rsd-border);
  border-radius: 8px;
  padding: 10px 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.15);
  z-index: 1000;
  width: 200px;
}
.paleta-color-popup .paleta-titulo {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--rsd-muted);
  text-transform: uppercase;
  letter-spacing: .4px;
  margin-bottom: 8px;
}
.paleta-color-popup .paleta-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}
.paleta-color-popup .paleta-swatch {
  width: 100%;
  aspect-ratio: 1 / 1;
  border: 2px solid;
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
  color: var(--rsd-muted);
  padding: 0;
}
.paleta-color-popup .paleta-swatch:hover { transform: scale(1.1); }
.paleta-color-popup .paleta-swatch.activo {
  outline: 2px solid var(--rsd-primary);
  outline-offset: 1px;
}

/* Bloque de materiales asociados bajo cada partida */
.materiales-block {
  padding: 4px 16px 8px 70px;
  background: #fafbff;
  border-top: 1px dashed var(--rsd-border);
}
.material-row {
  display: grid;
  grid-template-columns: 24px 1fr 110px 60px 70px 90px 90px 30px;
  gap: 6px;
  padding: 4px 0;
  align-items: center;
}
.material-row .material-icon {
  color: #94a3b8;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}
.material-row input {
  padding: 5px 8px;
  border: 1px solid var(--rsd-border);
  border-radius: 4px;
  font-size: 12px;
  font-family: inherit;
  width: 100%;
  min-width: 0;
}
.material-row input.ref-input {
  font-family: 'Menlo', 'Consolas', monospace;
  font-size: 11px;
  color: var(--rsd-muted);
}
.material-row input[type="number"] { text-align: right; font-variant-numeric: tabular-nums; }
.material-row .material-importe {
  text-align: right;
  font-size: 12px;
  font-weight: 600;
  color: #475569;
  font-variant-numeric: tabular-nums;
}
.materiales-block .add-material {
  background: transparent;
  border: 1px dashed #94a3b8;
  color: #475569;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  margin-top: 4px;
  transition: all .15s;
}
.materiales-block .add-material:hover {
  background: #fff;
  border-color: var(--rsd-secondary);
  color: var(--rsd-secondary);
}

.add-bar {
  padding: 10px 16px;
  display: flex;
  gap: 8px;
  background: var(--rsd-bg);
}
.add-bar select, .add-bar input {
  flex: 1;
  padding: 7px 10px;
  border: 1px solid var(--rsd-border);
  border-radius: 5px;
  font-size: 13px;
}

/* Sidebar editor */
.sidebar {
  position: sticky;
  top: 80px;
  align-self: start;
}
.sidebar .card { margin-bottom: 14px; }
.sidebar .totales-mini .fila {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 14px;
}
.sidebar .totales-mini .fila.total {
  border-top: 2px solid var(--rsd-primary);
  margin-top: 8px;
  padding-top: 10px;
  font-weight: 800;
  font-size: 17px;
  color: var(--rsd-primary);
}
.sidebar .totales-mini .valor { font-variant-numeric: tabular-nums; font-weight: 600; }

/* ============================================================
   LISTADO DE PRESUPUESTOS
   ============================================================ */

.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: #fff;
  border-radius: 10px;
  border: 2px dashed var(--rsd-border);
}
.empty-state h3 { color: var(--rsd-dark); margin: 0 0 8px 0; }
.empty-state p { color: var(--rsd-muted); margin: 0 0 16px 0; }

/* ============================================================
   CATÁLOGO
   ============================================================ */

.catalogo-filtros {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.catalogo-filtros .chip {
  padding: 5px 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 999px;
  background: #fff;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  color: var(--rsd-text);
}
.catalogo-filtros .chip.active {
  background: var(--rsd-primary);
  color: #fff;
  border-color: var(--rsd-primary);
}

/* ============================================================
   MODAL SELECTOR DE PARTIDAS
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal-overlay.show { display: flex; }
.modal {
  background: #fff;
  border-radius: 12px;
  width: 100%;
  max-width: 900px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0,0,0,.3);
  overflow: hidden;
}
.modal .head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--rsd-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal .head h3 { margin: 0; font-size: 17px; }
.modal .body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
}
.modal .foot {
  padding: 12px 20px;
  border-top: 1px solid var(--rsd-border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  background: var(--rsd-bg);
}

.partida-cat {
  padding: 10px 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 8px;
  margin-bottom: 6px;
  cursor: pointer;
  display: grid;
  grid-template-columns: 30px 1fr auto;
  gap: 10px;
  align-items: center;
  transition: all .12s;
}
.partida-cat:hover { background: var(--rsd-bg); border-color: var(--rsd-secondary); }
.partida-cat .cap {
  width: 28px; height: 28px;
  background: var(--rsd-primary);
  color: #fff;
  border-radius: 6px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
}
.partida-cat .titulo { font-weight: 600; font-size: 13px; }
.partida-cat .desc {
  font-size: 11px;
  color: var(--rsd-muted);
  margin-top: 2px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.partida-cat .precio {
  text-align: right;
  font-weight: 700;
  font-size: 13px;
  color: var(--rsd-primary);
  font-variant-numeric: tabular-nums;
}
.partida-cat .precio .ud { color: var(--rsd-muted); font-size: 11px; font-weight: 500; }
.partida-cat .uses {
  font-size: 10px;
  color: var(--rsd-muted);
  margin-top: 2px;
}

/* Modal selección de material — versión con thumbnail */
.partida-cat.material-cat {
  grid-template-columns: 100px 1fr auto;
  gap: 12px;
  align-items: center;
}
.material-thumb {
  width: 100px;
  height: 100px;
  object-fit: contain;
  background: #f8fafc;
  border: 1px solid var(--rsd-border);
  border-radius: 6px;
  display: block;
}
.material-thumb-fallback {
  width: 100px;
  height: 100px;
  background: #dbeafe;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}
/* En el modal de material, dar más altura al body para que se vean bien las imágenes */
#modal-material .body { padding: 12px 16px; }
#modal-material .partida-cat.material-cat { padding: 8px 12px; }

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--rsd-dark);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
  z-index: 999;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(20px);
  transition: all .3s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.success { background: var(--rsd-success); }
.toast.danger  { background: var(--rsd-danger); }

/* ============================================================
   ASISTENTE IA
   ============================================================ */

.chat-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  background: linear-gradient(135deg, #7c3aed, #2563eb);
  color: #fff;
  border: none;
  padding: 14px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(124, 58, 237, .3);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: transform .15s, box-shadow .15s;
}
.chat-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(124, 58, 237, .4);
}

.chat-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .35);
  display: none;
  z-index: 400;
  justify-content: flex-end;
}
.chat-overlay.show { display: flex; }

.chat-panel {
  width: 100%;
  max-width: 480px;
  background: #fff;
  display: flex;
  flex-direction: column;
  box-shadow: -8px 0 32px rgba(0, 0, 0, .15);
  animation: chatSlideIn .25s ease-out;
}
@keyframes chatSlideIn {
  from { transform: translateX(20px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: linear-gradient(135deg, #7c3aed, #2563eb);
  color: #fff;
}
.chat-header strong { font-size: 16px; letter-spacing: -.2px; }
.chat-header .sub { font-size: 11px; opacity: .85; margin-top: 2px; }
.chat-header .btn-close {
  background: rgba(255,255,255,.18);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
}
.chat-header .btn-close:hover { background: rgba(255,255,255,.28); }

.chat-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}
.chat-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  color: rgba(255,255,255,.95);
  cursor: pointer;
  background: rgba(255,255,255,.15);
  padding: 5px 9px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,.2);
  user-select: none;
  letter-spacing: 0.3px;
}
.chat-toggle.active {
  background: rgba(255,255,255,.35);
  border-color: rgba(255,255,255,.45);
}
.chat-toggle input { margin: 0; cursor: pointer; accent-color: #fff; }

.card-badges-row { margin-bottom: 6px; }
.card-badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.card-badge.pro  { background: #d1fae5; color: #065f46; }
.card-badge.rsd  { background: #fef3c7; color: #92400e; }
.card-badge.ayto { background: #dbeafe; color: #1e3a8a; }
.card-badge.ia   { background: #ede9fe; color: #5b21b6; }
.card-badge.competidor { background: #fed7aa; color: #9a3412; }
.card-badge.internet { background: #d1fae5; color: #065f46; }

.chat-setup {
  padding: 20px;
  overflow-y: auto;
  font-size: 13px;
  line-height: 1.5;
}
.chat-setup h3 { margin: 0 0 10px 0; font-size: 16px; color: var(--rsd-dark); }
.chat-setup p { margin: 0 0 8px 0; color: var(--rsd-text); }
.chat-setup ol { margin: 0 0 14px 0; padding-left: 20px; color: var(--rsd-text); }
.chat-setup li { margin-bottom: 4px; }
.chat-setup a { color: var(--rsd-secondary); }
.chat-setup code { background: var(--rsd-bg); padding: 1px 5px; border-radius: 3px; font-size: 12px; }
.chat-setup input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 7px;
  font-size: 13px;
  font-family: 'Menlo', 'Consolas', monospace;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--rsd-bg);
}

.chat-msg {
  padding: 9px 13px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.45;
  max-width: 88%;
  word-wrap: break-word;
}
.chat-msg-user {
  align-self: flex-end;
  background: var(--rsd-primary);
  color: #fff;
  border-bottom-right-radius: 3px;
}
.chat-msg-assistant {
  align-self: flex-start;
  background: #fff;
  color: var(--rsd-text);
  border: 1px solid var(--rsd-border);
  border-bottom-left-radius: 3px;
}
.chat-msg-error {
  align-self: stretch;
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
  font-size: 13px;
}

.chat-card-partida {
  align-self: stretch;
  background: #fff;
  border: 2px solid #7c3aed;
  border-radius: 10px;
  padding: 12px 14px;
  box-shadow: 0 4px 12px rgba(124, 58, 237, .12);
}
.chat-card-partida .card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  font-size: 14px;
}
.chat-card-partida .cap-pill {
  display: inline-block;
  width: 24px; height: 24px;
  background: #7c3aed;
  color: #fff;
  border-radius: 5px;
  font-weight: 800;
  font-size: 13px;
  text-align: center;
  line-height: 24px;
  flex-shrink: 0;
}
.chat-card-partida .card-cap-nombre {
  font-size: 11px;
  color: var(--rsd-muted);
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.chat-card-partida .card-desc {
  font-size: 12px;
  color: var(--rsd-muted);
  line-height: 1.45;
  margin-bottom: 10px;
  max-height: 80px;
  overflow-y: auto;
}
.chat-card-partida .card-numeros {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  padding: 8px 10px;
  background: var(--rsd-bg);
  border-radius: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.chat-card-partida .card-numeros .op { color: var(--rsd-muted); }
.chat-card-partida .card-numeros .card-total {
  margin-left: auto;
  color: #7c3aed;
  font-weight: 800;
  font-size: 15px;
}
.chat-card-partida .card-acciones {
  display: flex;
  gap: 8px;
}
.chat-card-partida .card-acciones .btn { flex: 1; font-size: 12px; padding: 7px 10px; }
.chat-card-partida .card-acciones .btn.success {
  background: var(--rsd-success);
  border-color: var(--rsd-success);
  color: #fff;
}

.chat-input-bar {
  padding: 12px;
  border-top: 1px solid var(--rsd-border);
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat-input-bar .chat-input-row {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}
.chat-input-bar textarea {
  flex: 1;
  padding: 9px 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 13px;
  resize: none;
  max-height: 120px;
}
.chat-input-bar textarea:focus {
  outline: none;
  border-color: #7c3aed;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, .15);
}
.chat-input-bar .btn { padding: 9px 18px; height: auto; }
.chat-attach-btn {
  padding: 9px 12px !important;
  font-size: 16px;
  background: #f3f4f6;
  border: 1px solid var(--rsd-border);
  cursor: pointer;
}
.chat-attach-btn:hover { background: #e0e7ff; border-color: #7c3aed; }
.chat-attach-btn.has-file {
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
  color: #fff;
  border-color: #4f46e5;
}

.chat-adjunto-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: linear-gradient(135deg, #ede9fe, #dbeafe);
  border: 1px solid #c4b5fd;
  border-radius: 8px;
  font-size: 12px;
  color: #4c1d95;
}
.chat-adjunto-chip .icon { font-size: 18px; }
.chat-adjunto-chip .info { flex: 1; line-height: 1.3; }
.chat-adjunto-chip .info strong { display: block; font-size: 12.5px; }
.chat-adjunto-chip .info small { color: #6b21a8; font-weight: 500; }
.chat-adjunto-chip .quitar {
  background: rgba(255,255,255,.6);
  border: 1px solid #c4b5fd;
  color: #4c1d95;
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
  font-weight: 600;
}
.chat-adjunto-chip .quitar:hover { background: #fff; }

.chat-panel.drag-over {
  outline: 3px dashed #7c3aed;
  outline-offset: -8px;
  background: linear-gradient(135deg, rgba(124,58,237,.04), rgba(79,70,229,.04));
}

/* Tarjeta resumen de análisis de presupuesto del competidor */
.chat-card-analisis {
  background: linear-gradient(135deg, #f5f3ff, #eff6ff);
  border: 2px solid #7c3aed;
  border-radius: 12px;
  padding: 14px 16px;
  margin: 8px 0 4px;
  box-shadow: 0 4px 12px rgba(124,58,237,.12);
}
.chat-card-analisis .head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-weight: 700;
  color: #4c1d95;
}
.chat-card-analisis .head .pill {
  background: #7c3aed;
  color: #fff;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: .3px;
}
.chat-card-analisis .resumen {
  font-size: 13px;
  color: #1e293b;
  margin-bottom: 10px;
  line-height: 1.45;
}
.chat-card-analisis .stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  margin-bottom: 12px;
}
.chat-card-analisis .stats span strong { color: #4c1d95; }
.chat-card-analisis .acciones {
  display: flex;
  gap: 8px;
}
.chat-card-analisis .acciones .btn { font-size: 12px; padding: 8px 14px; flex: 1; }

/* === Carpetas / Clientes en index =================================== */
.carpeta-bloque {
  background: #fff;
  border: 1px solid var(--rsd-border);
  border-radius: 10px;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.carpeta-bloque.sin-clasificar {
  background: #fafafa;
  border-style: dashed;
}
.carpeta-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: linear-gradient(90deg, #f5f3ff, #fff);
  border-bottom: 1px solid var(--rsd-border);
  cursor: pointer;
  user-select: none;
  transition: background .15s;
}
.carpeta-head:hover { background: linear-gradient(90deg, #ede9fe, #f5f3ff); }
.carpeta-toggle {
  background: transparent;
  border: none;
  padding: 0;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  color: var(--rsd-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .2s, background .15s;
}
.carpeta-toggle:hover { background: rgba(124, 58, 237, .08); color: var(--rsd-primary); }
.carpeta-bloque.colapsada .carpeta-toggle { transform: rotate(-90deg); }
.carpeta-bloque.colapsada .carpeta-head { border-bottom: none; }
.carpeta-bloque.colapsada .carpeta-body { display: none; }
.carpeta-bloque.sin-clasificar .carpeta-head {
  background: #f9fafb;
}
.carpeta-icon { font-size: 26px; line-height: 1; }
.carpeta-info { flex: 1; min-width: 0; }
.carpeta-nombre {
  font-weight: 700;
  font-size: 16px;
  color: var(--rsd-dark);
  margin-bottom: 2px;
  word-break: break-word;
}
.carpeta-meta {
  font-size: 12.5px;
  color: var(--rsd-muted);
}
.carpeta-acciones {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.carpeta-body { padding: 0; }
.carpeta-body table.data { margin: 0; border-radius: 0; box-shadow: none; }
.carpeta-body table.data thead th { background: #fafbfc; }
.carpeta-subseccion { padding: 0; }
.carpeta-subseccion + .carpeta-subseccion { border-top: 1px solid var(--rsd-border); }
.carpeta-subtitulo {
  padding: 8px 16px;
  background: #fafbff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--rsd-muted);
  border-bottom: 1px solid var(--rsd-border);
}
.fac-tipo-badge, .fac-estado-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .4px;
}
.fac-tipo-badge.proforma { background: #fef3c7; color: #92400e; }
.fac-tipo-badge.final    { background: #d1fae5; color: #065f46; }
.fac-estado-badge.borrador { background: #e5e7eb; color: #4b5563; }
.fac-estado-badge.emitida  { background: #dbeafe; color: #1e40af; }
.fac-estado-badge.cobrada  { background: #d1fae5; color: #065f46; }
.fac-estado-badge.anulada  { background: #fee2e2; color: #991b1b; }

/* ============================================================
   RESPONSIVE — móvil (≤ 700 px). Reglas para iPhone / Android.
   ============================================================ */
@media (max-width: 700px) {
  /* Prevenir desbordamiento horizontal: si algo se escapa del viewport
     no fuerza zoom out, solo aparece scroll local en su contenedor. */
  html, body { overflow-x: hidden; max-width: 100vw; }

  /* Sidebar del editor: en móvil pasa abajo (por el grid 1fr en 1100px)
     y no debe ser sticky — se queda atascada en el viewport y rompe scroll. */
  .sidebar { position: static; top: auto; }

  /* Header: brand arriba, nav debajo (scroll horizontal si no cabe) */
  .app-header {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px 12px;
  }
  .app-header .brand {
    font-size: 15px;
    gap: 8px;
  }
  .app-header .brand img { height: 28px; padding: 3px 6px; }
  .app-header nav {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin: 0 -4px;
    padding: 0 4px;
  }
  .app-header nav::-webkit-scrollbar { display: none; }
  .app-header nav a {
    padding: 6px 12px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
  }

  /* Container con padding reducido */
  .container { padding: 12px; }

  /* Page-title: título arriba, botones debajo, todos al ancho completo.
     Sin márgenes negativos para no salir del viewport. */
  .page-title {
    flex-direction: column;
    align-items: stretch;
    margin: 0 0 12px 0;
    padding: 12px 0;
    top: auto;
    position: static;
    box-shadow: none;
  }
  .page-title h1 { font-size: 20px; }
  .page-title > div:last-child {
    display: flex !important;
    flex-direction: column;
    gap: 6px !important;
  }
  .page-title .btn { width: 100%; justify-content: center; }

  /* Stats: 2 columnas en lugar de 5 */
  #stats-card > div {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }

  /* Tablas de presupuestos / facturas → tarjetas apiladas.
     Cada <tr> se convierte en bloque, cada <td> en una línea con
     etiqueta a la izquierda (data-label) y valor a la derecha. */
  table.data { display: block; border: none; box-shadow: none; background: transparent; }
  table.data thead { display: none; }
  table.data tbody, table.data tr, table.data td { display: block; width: 100%; }
  table.data tbody tr {
    background: #fff;
    border: 1px solid var(--rsd-border);
    border-radius: 10px;
    margin-bottom: 10px;
    padding: 6px 10px;
    box-shadow: 0 1px 2px rgba(0,0,0,.03);
  }
  table.data tbody tr:hover { background: #fff; }
  table.data tbody td {
    padding: 6px 0;
    border-bottom: 1px dashed var(--rsd-border);
    font-size: 13.5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    text-align: right;
  }
  table.data tbody td:last-child { border-bottom: none; }
  table.data tbody td::before {
    content: attr(data-label);
    color: var(--rsd-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .4px;
    font-weight: 700;
    flex-shrink: 0;
    text-align: left;
  }
  table.data tbody td.acciones {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 4px;
  }
  table.data tbody td.acciones::before { width: 100%; margin-bottom: 4px; }
  table.data .num { text-align: right; }

  /* Toolbar de búsqueda + filtros: apilar */
  .toolbar-row { flex-direction: column; align-items: stretch; gap: 8px; }
  .toolbar-row > * { width: 100%; }

  /* Inputs y selects: que el texto no se corte ni saque scroll */
  input[type="text"], input[type="search"], input[type="email"],
  input[type="tel"], input[type="number"], select, textarea {
    font-size: 16px; /* evita el zoom automático de iOS al hacer foco */
  }

  /* Formularios: una sola columna */
  .form-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .form-grid .full { grid-column: 1 / -1; }

  /* Editor de partidas: convertir el grid de 8 columnas en cards verticales.
     Cada celda tiene su data-label que se muestra encima como etiqueta. */
  .partida-header { display: none; }
  .capitulo-block .head {
    flex-wrap: wrap;
    gap: 6px;
    padding: 10px 12px;
  }
  .capitulo-block .head input { min-width: 0; flex: 1 1 100%; }
  .partida-row {
    grid-template-columns: 1fr 1fr !important;
    gap: 8px;
    padding: 12px 10px;
  }
  .partida-row > .codigo-cell,
  .partida-row > .titulo-cell {
    grid-column: 1 / -1;
  }
  .partida-row > input[data-f="unidad"],
  .partida-row > .num {
    grid-column: span 1;
    position: relative;
  }
  .partida-row > .num::before {
    content: attr(data-label);
    display: block;
    color: var(--rsd-muted);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: .4px;
    font-weight: 700;
    margin-bottom: 3px;
  }
  .partida-row > .importe {
    grid-column: 1 / -1;
    text-align: right;
    font-size: 17px;
    font-weight: 800;
    color: var(--rsd-primary);
    border-top: 1px dashed var(--rsd-border);
    padding-top: 6px;
    margin-top: 2px;
  }
  .partida-row > .importe::before {
    content: attr(data-label);
    float: left;
    color: var(--rsd-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .4px;
    font-weight: 700;
    padding-top: 4px;
  }
  .partida-row > .acciones-partida {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 4px;
  }
  .partida-row > .acciones-partida button { font-size: 12px; }

  /* Sub-fila de materiales también vertical */
  .material-row {
    grid-template-columns: 1fr !important;
    gap: 6px !important;
    padding: 8px 10px !important;
  }
  .material-row > * { width: 100%; }

  /* Toolbar fija del editor */
  .toolbar-row { gap: 6px; }

  /* Carpetas — apilar título y acciones en filas distintas */
  .carpeta-head {
    padding: 10px 12px;
    flex-wrap: wrap;
    column-gap: 10px;
    row-gap: 8px;
  }
  .carpeta-info {
    flex: 1 1 0;
    min-width: 60%;
  }
  .carpeta-nombre { font-size: 14px; }
  .carpeta-meta { font-size: 11.5px; }
  .carpeta-acciones {
    flex: 1 1 100%;
    justify-content: flex-end;
    gap: 5px;
  }
  .carpeta-acciones .btn { font-size: 11.5px; padding: 5px 9px; }
  .carpeta-body { padding: 8px; }

  /* Editor: el grid 1fr 380px ya cae a 1fr en 1100px, no toco */

  /* Modales: ancho casi completo */
  .modal { max-width: 95vw !important; max-height: 90vh; }

  /* Banners e info-cards */
  .card { padding: 14px; }
}

/* ============================================================
   CALCULADORA flotante (Ctrl+M para abrir / cerrar)
   ============================================================ */
.calc-widget {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 280px;
  background: #fff;
  border: 1px solid var(--rsd-border);
  border-radius: 12px;
  box-shadow: 0 12px 28px rgba(0,0,0,.18);
  z-index: 290;
  user-select: none;
  font-size: 13px;
}
.calc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: #fff;
  padding: 8px 12px;
  border-radius: 12px 12px 0 0;
  cursor: move;
  font-weight: 700;
  letter-spacing: .3px;
}
.calc-close {
  background: transparent;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
  border-radius: 4px;
}
.calc-close:hover { background: rgba(255,255,255,.15); }
.calc-body { padding: 12px; user-select: auto; }
#calc-expr {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--rsd-border);
  border-radius: 8px;
  font-size: 16px;
  font-family: 'Menlo','Consolas',monospace;
  font-variant-numeric: tabular-nums;
  background: #f8fafc;
  color: var(--rsd-dark);
  box-sizing: border-box;
}
#calc-expr:focus {
  outline: none;
  border-color: var(--rsd-primary);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, .12);
  background: #fff;
}
.calc-resultado-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 10px 12px;
  background: linear-gradient(90deg, #f5f3ff, #eff6ff);
  border-radius: 8px;
  border: 1px solid #e0e7ff;
}
.calc-resultado-lab {
  font-weight: 800;
  color: var(--rsd-primary);
  font-size: 18px;
}
.calc-resultado {
  flex: 1;
  font-size: 18px;
  font-weight: 800;
  color: var(--rsd-dark);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.calc-copiar {
  background: var(--rsd-primary);
  color: #fff;
  border: none;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.calc-copiar:hover { opacity: .9; }
.calc-copiar.ok { background: #10b981; }
.calc-historial-titulo {
  margin-top: 12px;
  font-size: 10px;
  font-weight: 700;
  color: var(--rsd-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.calc-historial {
  max-height: 130px;
  overflow-y: auto;
  border: 1px solid var(--rsd-border);
  border-radius: 6px;
  margin-top: 4px;
  background: #fafbfc;
}
.calc-historial .item {
  padding: 5px 10px;
  border-bottom: 1px solid var(--rsd-border);
  font-size: 12px;
  cursor: pointer;
  font-family: 'Menlo','Consolas',monospace;
  display: flex;
  justify-content: space-between;
  gap: 6px;
}
.calc-historial .item:last-child { border-bottom: none; }
.calc-historial .item:hover { background: #eef2ff; }
.calc-historial .item .expr { color: var(--rsd-muted); flex: 1; overflow: hidden; text-overflow: ellipsis; }
.calc-historial .item .res { color: var(--rsd-primary); font-weight: 700; flex-shrink: 0; }
.calc-help {
  margin-top: 8px;
  font-size: 10.5px;
  color: var(--rsd-muted);
  line-height: 1.5;
}
@media (max-width: 700px) {
  .calc-widget {
    width: calc(100vw - 24px);
    right: 12px;
    bottom: 80px;
  }
}