/*
============================================================
PRO011 · Calculadora FOB
Archivo: styles/app.css
============================================================
PROPÓSITO FUNCIONAL
Estilos de componentes y layout responsive (mobile primero, desktop
en dos columnas desde 900px). Respeta las áreas seguras del iPhone.
DEPENDENCIAS
styles/tokens.css
NO DEBE
Definir colores sueltos fuera de los tokens.
============================================================
*/
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 15px; line-height: 1.4; -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: none; box-shadow: var(--focus); }
a { color: var(--primary); }
.oculto-visual { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }

/* ---------- Estructura ---------- */
.app { min-height: 100%; display: flex; flex-direction: column; }
.cabecera { position: sticky; top: 0; z-index: 20; padding: calc(var(--safe-top) + 10px) 16px 10px; background: var(--surface); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.cabecera__titulo { display: flex; align-items: center; gap: 4px; min-width: 0; }
.cabecera__texto { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.cabecera h1 { margin: 0; font-size: 18px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cabecera__acciones { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.cabecera__nav { display: none; gap: 4px; }
.contenido { flex: 1; width: 100%; max-width: 1200px; margin: 0 auto; padding: 14px 16px calc(var(--safe-bottom) + 170px); display: flex; flex-direction: column; gap: 12px; }
.contenido--sin-barra { padding-bottom: calc(var(--safe-bottom) + 24px); }
.barra-inferior { position: fixed; left: 0; right: 0; bottom: 0; z-index: 15; padding: 12px 16px calc(var(--safe-bottom) + 12px); background: var(--surface); border-top: 1px solid var(--border-strong); display: flex; flex-direction: column; gap: 10px; }
.columnas { display: flex; flex-direction: column; gap: 12px; }

@media (min-width: 900px) {
  .cabecera { padding: 14px 28px; }
  .cabecera__nav { display: flex; }
  .contenido { padding: 24px 28px 40px; }
  .columnas { flex-direction: row; align-items: flex-start; gap: 20px; }
  .columnas > .col-principal { flex: 1 1 560px; min-width: 0; display: flex; flex-direction: column; gap: 14px; }
  .columnas > .col-lateral { flex: 1 1 380px; min-width: 0; position: sticky; top: 90px; display: flex; flex-direction: column; gap: 14px; }
  .barra-inferior.solo-mobile { display: none; }
  .solo-mobile { display: none !important; }
}
@media (max-width: 899px) { .solo-desktop { display: none !important; } }

/* ---------- Componentes ---------- */
.tarjeta { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; display: flex; flex-direction: column; gap: 12px; }
.tarjeta--destacada { border-top: 3px solid var(--primary); }
.tarjeta h2 { margin: 0; font-size: 15px; font-weight: 700; }
.etiqueta { font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .03em; text-transform: uppercase; }
.ayuda { font-size: 12px; color: var(--muted); margin: 0; }
.error-campo { font-size: 13px; color: var(--danger); margin: 0; }
.fila { display: flex; gap: 8px; align-items: center; }
.fila--entre { justify-content: space-between; }
.grilla-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.grilla-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.grilla-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.campo { display: flex; flex-direction: column; gap: 6px; min-width: 0; }

.input { width: 100%; height: 46px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--input); font-size: 16px; /* 16px evita el zoom automático de iOS */ }
.input:focus { border-color: var(--primary); box-shadow: var(--focus); outline: none; }
.input[aria-invalid="true"] { border-color: var(--danger); }
textarea.input { height: auto; padding: 10px 12px; resize: vertical; }
.input-con-prefijo { display: flex; align-items: center; height: 56px; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--input); overflow: hidden; }
.input-con-prefijo:focus-within { border-color: var(--primary); box-shadow: var(--focus); }
.input-con-prefijo span { height: 100%; display: flex; align-items: center; padding: 0 12px; border-right: 1px solid var(--border); font-weight: 600; color: var(--muted); }
.input-con-prefijo input { flex: 1; min-width: 0; height: 100%; border: 0; background: transparent; padding: 0 12px; font-size: 22px; font-weight: 700; outline: none; }
.input-busqueda { position: relative; }
.input-busqueda svg { position: absolute; left: 12px; top: 14px; color: var(--muted); pointer-events: none; }
.input-busqueda .input { padding-left: 38px; }

.boton { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 16px; border-radius: var(--radius); border: 1px solid transparent; font-size: 15px; font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap; }
.boton--primario { background: var(--primary); color: var(--on-primary); }
.boton--primario:hover { background: var(--primary-hover); }
.boton--secundario { background: transparent; border-color: var(--border-strong); color: var(--primary); }
.boton--exito { background: var(--success-soft); border-color: var(--success); color: var(--success); }
.boton--peligro-suave { background: transparent; border-color: var(--border-strong); color: var(--text-soft); }
.boton--icono { width: 40px; min-height: 40px; padding: 0; border: 1px solid var(--border-strong); background: transparent; color: var(--primary); }
.boton--ancho { width: 100%; }
.boton:disabled { opacity: .5; cursor: not-allowed; }
.boton--grande { min-height: 52px; }

.segmentado { display: flex; gap: 4px; padding: 4px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-2); }
.segmentado button { flex: 1 1 0; min-height: 40px; padding: 6px 8px; border: 0; border-radius: 3px; background: transparent; color: var(--text-soft); font-size: 14px; font-weight: 600; cursor: pointer; }
.segmentado button[aria-pressed="true"] { background: var(--primary); color: var(--on-primary); }

.talle { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 10px 4px; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--input); cursor: pointer; }
.talle strong { font-size: 19px; }
.talle small { font-size: 11px; color: var(--muted); }
.talle[aria-pressed="true"] { border-color: var(--primary); background: var(--primary-soft); }
.talle[aria-pressed="true"] strong { color: var(--primary); }

.chip { display: inline-flex; align-items: center; gap: 5px; min-height: 26px; padding: 2px 10px; border-radius: 13px; font-size: 12px; font-weight: 600; background: var(--surface-2); color: var(--text-soft); white-space: nowrap; }
.chip--exito { background: var(--success-soft); color: var(--success); }
.chip--peligro { background: var(--danger-soft); color: var(--danger); }
.chip--aviso { background: var(--warning-soft); color: var(--warning); }
.chip--boton { min-height: 38px; padding: 0 14px; border-radius: 19px; border: 1px solid var(--border-strong); background: var(--input); font-size: 14px; cursor: pointer; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }

.estado-conexion { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; text-decoration: none; }
.estado-conexion--offline { color: var(--warning); }
.estado-conexion--online { color: var(--success); }

.tema-toggle { display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 10px; border: 1px solid var(--border-strong); border-radius: 20px; background: var(--surface-2); color: var(--muted); cursor: pointer; }
.tema-toggle__pista { position: relative; width: 32px; height: 18px; border-radius: 9px; background: var(--primary-soft); border: 1px solid var(--border-strong); }
.tema-toggle__pista::after { content: ""; position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; border-radius: 6px; background: var(--primary); transition: transform .2s; }
[data-tema="claro"] .tema-toggle__pista::after { transform: translateX(14px); }

.foto-slot { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; width: 100%; aspect-ratio: 1; max-height: 160px; border: 1px dashed var(--border-strong); border-radius: var(--radius); background: var(--photo); color: var(--text-soft); font-size: 12px; font-weight: 600; cursor: pointer; overflow: hidden; padding: 0; }
.foto-slot img { width: 100%; height: 100%; object-fit: cover; }
.miniatura { width: 52px; height: 52px; border-radius: var(--radius); background: var(--photo); flex-shrink: 0; object-fit: cover; display: flex; align-items: center; justify-content: center; color: var(--muted); }

.resultado__monto { font-size: 34px; font-weight: 700; line-height: 1.1; font-variant-numeric: tabular-nums; }
.resultado__sub { font-size: 14px; color: var(--muted); }
.desglose { list-style: none; margin: 0; padding: 0; }
.desglose li { display: flex; flex-direction: column; gap: 6px; padding: 9px 0; border-bottom: 1px solid var(--border); }
.desglose li > span:first-child { display: flex; justify-content: space-between; gap: 12px; }
.desglose li strong { font-variant-numeric: tabular-nums; white-space: nowrap; }
.desglose .barra { height: 4px; border-radius: 2px; background: var(--surface-3); overflow: hidden; }
.desglose .barra > span { display: block; height: 100%; background: var(--primary); }
.desglose .total { flex-direction: row; justify-content: space-between; border-bottom: 0; font-weight: 700; }

.resumen-barra { display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; }
.resumen-barra .resultado__monto { font-size: 28px; }

.sugerencias { list-style: none; margin: 0; padding: 4px; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--surface); max-height: 260px; overflow-y: auto; }
.sugerencias button { width: 100%; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 10px; border: 0; border-radius: 3px; background: transparent; text-align: left; cursor: pointer; }
.sugerencias button:hover, .sugerencias button:focus-visible { background: var(--primary-soft); }
.sugerencias small { color: var(--muted); }

.lista { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.item-cotizacion { display: flex; gap: 12px; padding: 12px; width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); text-align: left; cursor: pointer; }
.item-cotizacion__cuerpo { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.item-cotizacion__linea { display: flex; justify-content: space-between; gap: 8px; }
.truncar { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; display: flex; flex-direction: column; gap: 2px; }
.kpi strong { font-size: 22px; }
.kpi span { font-size: 12px; color: var(--muted); }

.aviso { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border-radius: var(--radius); background: var(--warning-soft); font-size: 13px; }
.aviso svg { color: var(--warning); flex-shrink: 0; margin-top: 1px; }
.aviso--info { background: var(--primary-soft); }
.aviso--info svg { color: var(--primary); }

.toast { position: fixed; left: 16px; right: 16px; top: calc(var(--safe-top) + 72px); z-index: 50; max-width: 480px; margin: 0 auto; display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 6px; background: var(--text); color: var(--bg); font-size: 14px; font-weight: 600; box-shadow: 0 6px 24px rgba(0,0,0,.25); }

.puntajes { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
@media (min-width: 600px) { .puntajes { grid-template-columns: repeat(10, minmax(0, 1fr)); } }
.puntajes button { height: 48px; border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--input); font-size: 17px; font-weight: 700; cursor: pointer; }
.puntajes button[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.escala { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.escala li { padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; }
.escala li.activa { border-color: var(--primary); background: var(--primary-soft); }

.pasos { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.pasos li { display: flex; gap: 12px; align-items: center; padding: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.paso-num { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 16px; background: var(--primary-soft); color: var(--primary); font-weight: 700; flex-shrink: 0; }
.vacio { text-align: center; padding: 32px 16px; color: var(--muted); }

/* En mobile el toggle de tema queda como un solo ícono para no cortar el título. */
@media (max-width: 899px) {
  .tema-toggle { width: 40px; padding: 0; justify-content: center; }
  .tema-toggle__pista, .tema-toggle svg + .tema-toggle__pista + svg { display: none; }
  [data-tema="claro"] .tema-toggle svg:first-child { display: none; }
  [data-tema="claro"] .tema-toggle svg:last-child { display: block; }
  [data-tema="oscuro"] .tema-toggle svg:last-child { display: none; }
}

/* Desplegable de opciones avanzadas (posición, derecho) */
.desplegable summary { cursor: pointer; min-height: 40px; display: flex; align-items: center; font-size: 14px; font-weight: 600; color: var(--primary); list-style: none; }
.desplegable summary::-webkit-details-marker { display: none; }
.desplegable summary::after { content: "›"; margin-left: 6px; transition: transform .15s; }
.desplegable[open] summary::after { transform: rotate(90deg); }