:root {
  --ink: #1d1b16;
  --paper: #ffffff;
  --app-bg: #f2f1ea;
  --card: #ffffff;
  --sage: #aec48a;
  --sage-deep: #7f9b55;
  --gold: #a9842f;
  --gold-deep: #8a6a20;
  --line: #e4e1d6;
  --muted: #6f6b5f;
  --focus: #3c6e3c;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(29, 27, 22, .06), 0 8px 24px rgba(29, 27, 22, .06);
  --ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", "Cascadia Mono", "Consolas", "Roboto Mono", monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--ui); color: var(--ink); background: var(--app-bg); line-height: 1.45; }

/* ---------- Barra superior ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; padding: 14px 24px;
  background: rgba(255, 255, 255, .9); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar__title { display: flex; align-items: center; gap: 14px; }
.topbar__mark {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(155deg, #d9b85e, var(--gold)); color: #2a2208;
  font-weight: 700; font-size: 18px; letter-spacing: .5px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.5);
}
.topbar h1 { font-size: 17px; margin: 0; font-weight: 650; }
.topbar p { margin: 0; font-size: 13px; color: var(--muted); }
.topbar__actions { display: flex; align-items: center; gap: 10px; }

/* ---------- Botones ---------- */
.btn {
  font: inherit; font-weight: 600; font-size: 14px;
  border: 1px solid transparent; border-radius: var(--radius);
  padding: 9px 16px; cursor: pointer;
  transition: transform .05s ease, background .15s ease, box-shadow .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn--gold { background: var(--gold); color: #fff; }
.btn--gold:hover { background: var(--gold-deep); }
.btn--sage { background: var(--sage); color: #233110; }
.btn--sage:hover { background: var(--sage-deep); color: #fff; }
.btn--ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn--ghost:hover { background: #faf9f4; }
.btn--sm { padding: 6px 11px; font-size: 13px; }
.btn--addrow { margin-top: 12px; }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.seg__btn { font: inherit; font-size: 13px; font-weight: 600; border: 0; background: transparent; color: var(--muted); padding: 8px 12px; cursor: pointer; }
.seg__btn.is-active { background: var(--ink); color: #fff; }

/* ---------- Layout ---------- */
.layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 420px; gap: 28px;
  max-width: 1180px; margin: 0 auto; padding: 28px 24px 64px; align-items: start;
}
.controls { display: flex; flex-direction: column; gap: 18px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 18px 20px; box-shadow: var(--shadow); }
.card__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; }
.card__title { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; }
.card__head .card__title { margin: 0; }

/* ---------- Campos ---------- */
.grid { display: grid; gap: 14px; }
.grid--2 { grid-template-columns: 1fr 1fr; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--full { grid-column: 1 / -1; }
.field > span { font-size: 12.5px; font-weight: 600; color: var(--muted); }

input, select {
  font: inherit; font-size: 15px; color: var(--ink); background: #fff;
  border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--focus); outline-offset: 1px; border-color: var(--focus); }

.formula {
  margin: 16px 0 0; padding: 12px 14px; background: #f7f6ef;
  border: 1px dashed var(--line); border-radius: 9px;
  font-size: 12.5px; color: var(--muted); font-family: var(--mono); line-height: 1.6;
}
.hint { font-size: 12px; color: var(--muted); margin-top: 2px; }
.field--narrow { max-width: 220px; }
.tc-wrap { max-width: 340px; margin-top: 14px; }

/* ---------- Subencabezado (Adelantos) ---------- */
.subhead { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 20px 0 12px; }
.subhead > span { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

/* ---------- Adelantos (lista) ---------- */
.adels { display: flex; flex-direction: column; gap: 8px; }
.adel-row { display: grid; grid-template-columns: 150px 1fr 92px 34px; gap: 8px; align-items: center; }
.adel-row--notc { grid-template-columns: 150px 1fr 34px; }
.adel-row--notc .adel-tc { display: none; }

/* ---------- Modo de onza ---------- */
.onza-global { margin-bottom: 14px; max-width: 280px; }

/* ---------- Filas de lotes ---------- */
.rows { display: flex; flex-direction: column; gap: 8px; }
.rows__head, .row { display: grid; grid-template-columns: 1fr 1fr 1fr 1.1fr 34px; gap: 8px; align-items: center; }
.rows__head--unica, .row--unica { grid-template-columns: 1fr 1fr 1.1fr 34px; }
.rows__head { padding: 0 2px 4px; }
.rows__head span { font-size: 11.5px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.rows__head .rows__sub { text-align: right; }
.row input { font-size: 14px; padding: 9px 10px; }
.row__sub { text-align: right; font-family: var(--mono); font-size: 13.5px; font-variant-numeric: tabular-nums; color: var(--ink); padding-right: 4px; }
.row__del { width: 34px; height: 34px; border: 1px solid var(--line); background: #fff; border-radius: 8px; color: var(--muted); font-size: 18px; line-height: 1; cursor: pointer; }
.row__del:hover { background: #fcebe9; border-color: #e3b4ad; color: #b23a2c; }

/* ---------- Guardar / cargar ---------- */
.saved__io { display: flex; gap: 8px; }
.saved__save { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-bottom: 14px; }
.saved__list { display: flex; flex-direction: column; gap: 8px; }
.saved__empty { color: var(--muted); font-size: 14px; margin: 2px; }
.saved__item { display: flex; align-items: center; justify-content: space-between; gap: 10px; border: 1px solid var(--line); border-radius: 9px; padding: 9px 10px 9px 12px; background: #fbfaf5; }
.saved__info { display: flex; flex-direction: column; min-width: 0; }
.saved__info b { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.saved__info small { color: var(--muted); font-size: 12px; }
.saved__btns { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

/* ---------- Vista previa ---------- */
.preview { position: sticky; top: 92px; display: flex; justify-content: center; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .layout { grid-template-columns: 1fr; }
  .preview { position: static; }
}
@media (max-width: 520px) {
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .adel-row { grid-template-columns: 110px 1fr 70px 32px; }
  .adel-row--notc { grid-template-columns: 110px 1fr 32px; }
  .topbar { padding: 12px 16px; }
  .layout { padding: 18px 16px 48px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}