:root {
  --bg: #f5f6f4;
  --surface: #ffffff;
  --surface-2: #eef1ee;
  --text: #17201d;
  --muted: #5d6b66;
  --line: #dde3df;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --accent-soft: #d8efe9;
  --warn: #b45309;
  --warn-soft: #fdf1df;
  --danger: #b42318;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 20, .06), 0 4px 16px rgba(16, 24, 20, .05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1412;
    --surface: #171e1b;
    --surface-2: #1f2824;
    --text: #e6ece9;
    --muted: #93a39c;
    --line: #2b3632;
    --accent: #2dd4bf;
    --accent-ink: #062a25;
    --accent-soft: #123a34;
    --warn: #fbbf24;
    --warn-soft: #3a2d10;
    --danger: #f87171;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
button, input, select { font: inherit; color: inherit; }
.muted { color: var(--muted); }
.num { font-variant-numeric: tabular-nums; }

/* Marca */
.brand { display: flex; align-items: center; gap: 10px; }
.brand strong { display: block; font-size: 16px; letter-spacing: -.01em; }
.brand small { display: block; color: var(--muted); font-size: 12px; margin-top: -2px; }
.logo { width: 30px; height: 30px; border-radius: 8px; background: var(--accent); position: relative; flex: none; }
.logo::after { content: ""; position: absolute; inset: 8px 8px 7px; border: 2.2px solid var(--accent-ink); border-top-width: 0; border-radius: 0 0 2px 2px; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(360px, 100%); display: grid; gap: 10px; padding: 24px; }
.login-card .brand { margin-bottom: 8px; }
.error { color: var(--danger); margin: 0; font-size: 14px; }

/* Barra superior */
.top {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 16px;
  padding: 10px 16px; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.tabs { display: flex; gap: 4px; background: var(--surface-2); padding: 3px; border-radius: 10px; margin-left: auto; }
.tabs button { border: 0; background: transparent; padding: 6px 12px; border-radius: 8px; cursor: pointer; color: var(--muted); font-weight: 500; }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.salir { color: var(--muted); text-decoration: none; font-size: 14px; }
@media (max-width: 640px) {
  .top { flex-wrap: wrap; gap: 8px 12px; }
  .tabs { order: 3; width: 100%; margin: 0; }
  .tabs button { flex: 1; }
  .salir { margin-left: auto; }
}

/* Layout */
.wrap { max-width: 1120px; margin: 0 auto; padding: 20px 16px 80px; }
.grid { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 20px; align-items: start; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.section { padding: 18px; }
.section + .section { border-top: 1px solid var(--line); }
.section h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 12px; font-weight: 600; }
h1 { font-size: 20px; margin: 0 0 4px; letter-spacing: -.01em; }
.sticky { position: sticky; top: 72px; }
@media (max-width: 900px) { .sticky { position: static; } }

/* Controles */
label { font-size: 13px; color: var(--muted); font-weight: 500; }
input[type="number"], input[type="text"], input[type="password"], select {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface);
  min-height: 40px;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.row { display: grid; gap: 10px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.row2 { display: grid; gap: 10px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field { display: grid; gap: 4px; min-width: 0; }
@media (max-width: 600px) {
  .row:not(.dims) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 400px) {
  .row:not(.dims), .row2.stack-sm { grid-template-columns: 1fr; }
}
.unit { position: relative; }
.unit input { padding-right: 38px; }
.unit span { position: absolute; right: 11px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 13px; pointer-events: none; }

.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button {
  border: 1px solid var(--line); background: var(--surface); padding: 8px 12px; border-radius: 9px; cursor: pointer;
  font-weight: 500; min-height: 40px;
}
.seg button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--text); box-shadow: inset 0 0 0 1px var(--accent); }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.cards button { text-align: left; display: grid; gap: 2px; padding: 10px 12px; }
.cards button small { color: var(--muted); font-weight: 400; font-size: 12.5px; }
@media (max-width: 520px) { .cards { grid-template-columns: 1fr; } }

.check { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.hint { font-size: 12.5px; color: var(--muted); margin: 6px 0 0; }

details summary { cursor: pointer; color: var(--muted); font-weight: 500; font-size: 14px; }
details[open] summary { margin-bottom: 12px; }

.btn { border: 1px solid var(--line); background: var(--surface); padding: 9px 14px; border-radius: 9px; cursor: pointer; font-weight: 600; min-height: 40px; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 10px; min-height: 32px; font-size: 13px; }

/* Resultado */
.price { padding: 20px 18px 16px; }
.price .label { font-size: 13px; color: var(--muted); }
.price .big { font-size: 38px; font-weight: 700; letter-spacing: -.02em; line-height: 1.1; margin: 2px 0; }
.price .sub { color: var(--muted); font-size: 14px; }
.price .total { font-size: 18px; font-weight: 600; color: var(--text); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats div { background: var(--surface); padding: 10px 12px; }
.stats b { display: block; font-size: 16px; }
.stats span { font-size: 12px; color: var(--muted); }
.breakdown { width: 100%; border-collapse: collapse; font-size: 14px; }
.breakdown td { padding: 5px 0; }
.breakdown td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.breakdown tr.sum td { border-top: 1px solid var(--line); padding-top: 8px; font-weight: 600; }
.bar { height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; margin-top: 2px; }
.bar i { display: block; height: 100%; background: var(--accent); opacity: .7; }
.note { background: var(--warn-soft); color: var(--warn); border-radius: 9px; padding: 8px 10px; font-size: 13px; margin-top: 10px; }

.printers { display: grid; gap: 6px; }
.printers button { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; text-align: left; padding: 9px 11px; }
.printers button small { color: var(--muted); font-weight: 400; }
.printers button .p { font-variant-numeric: tabular-nums; }
.printers button:disabled { opacity: .55; cursor: not-allowed; }

/* Tablas de ajustes */
.tbl-wrap { overflow-x: auto; margin: 0 -18px; padding: 0 18px; }
table.edit { border-collapse: collapse; width: 100%; min-width: 640px; font-size: 14px; }
table.edit th { text-align: left; font-size: 12px; color: var(--muted); font-weight: 600; padding: 6px 6px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.edit td { padding: 5px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.edit input[type="number"], table.edit input[type="text"] { min-height: 34px; padding: 6px 8px; }
table.edit td.name { font-weight: 500; white-space: nowrap; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; padding: 14px 18px; border-top: 1px solid var(--line); }
.stack { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
.ok { color: var(--accent); font-weight: 600; }
.bad { color: var(--warn); font-weight: 600; }

.mini { display: none; }
@media (max-width: 900px) {
  .mini {
    position: fixed; left: 12px; right: 12px; bottom: max(12px, env(safe-area-inset-bottom)); z-index: 6;
    display: flex; justify-content: space-between; align-items: center; gap: 12px; text-align: left;
    background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 14px; padding: 10px 16px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, .25); cursor: pointer;
  }
  .mini:empty { display: none; }
  .mini small { display: block; font-size: 12px; opacity: .85; }
  .mini b { font-size: 20px; }
  .mini span:last-child { text-align: right; }
  .mini span:last-child b { font-size: 16px; }
}

.toast {
  position: fixed; left: 50%; bottom: 20px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; transition: .2s; font-weight: 500;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }