/* Nfclant · minimalista tecnológico, pensado primero para el celular. */
:root {
  --bg: #f3f5f8;
  --surface: #ffffff;
  --surface-2: #f7f8fa;
  --ink: #0b1220;
  --ink-2: #344054;
  --muted: #5d6779;
  --line: #dfe3ea;
  --accent: #2b5cff;
  --accent-2: #5b8cff;
  --accent-ink: #ffffff;
  --accent-soft: #eaf0ff;
  --danger: #b42318;
  --danger-line: #f3c1bc;
  --ok-bg: #e8f6ee;
  --ok-ink: #0f5132;
  --err-bg: #fdeceb;
  --err-ink: #7a1b13;
  --warn-bg: #fff5d9;
  --warn-ink: #6b4300;
  --radius: 14px;
  --radius-sm: 10px;
  --space: 16px;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}
body { margin: 0; background: var(--bg); line-height: 1.5; font-size: 16px; }
a { color: var(--accent); text-underline-offset: 2px; }
code, .mono { font-family: var(--mono); }
h1, h2 { line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.01em; }
h1 { font-size: 1.35rem; font-weight: 700; }
h2 { font-size: 1.08rem; font-weight: 650; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.icon { flex: none; }

/* Controles: táctiles, sin selección de texto ni retraso de toque. */
button, .btn, .topnav a, .navbtn, summary { touch-action: manipulation; user-select: none; -webkit-user-select: none; }
:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 2px; }

/* ---------------------------------------------------------------- Páginas públicas */
body.public { min-height: 100svh; display: grid; place-items: center; padding: 24px 16px; }
.public-card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 36px 24px 24px; max-width: 420px; width: 100%; text-align: center; }
.public-card h1 { font-size: 1.3rem; margin-bottom: 8px; }
.public-card p { color: var(--muted); }
.public-mark { color: var(--ink); margin-bottom: 18px; display: flex; justify-content: center; }
.public-brand { margin: 24px 0 0 !important; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }

/* ---------------------------------------------------------------- Estructura del panel */
.topbar {
  background: var(--ink); color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: calc(6px + env(safe-area-inset-top, 0px)) max(12px, env(safe-area-inset-right, 0px)) 6px max(12px, env(safe-area-inset-left, 0px));
}
.logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 1.05rem; letter-spacing: .01em; min-height: 44px; --mark-ink: var(--ink); }
.logo .mark { color: #fff; }
.topnav { display: flex; align-items: center; }
.topnav form { margin: 0; }
.topnav a, .navbtn { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; color: #d6dcea; text-decoration: none; font: inherit; font-size: .95rem; background: none; border: 0; cursor: pointer; border-radius: 8px; }
.topnav a:active, .navbtn:active { background: rgba(255, 255, 255, .1); }
.mode-banner { background: var(--warn-bg); color: var(--warn-ink); padding: 10px 16px; font-size: .9rem; border-bottom: 1px solid #f1dc9c; }
.wrap { max-width: 760px; margin: 0 auto; padding: 16px max(16px, env(safe-area-inset-left, 0px)) calc(32px + env(safe-area-inset-bottom, 0px)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.card.narrow { max-width: 440px; margin-left: auto; margin-right: auto; }
.card-sub { background: var(--surface-2); }
.back-link { display: inline-flex; align-items: center; min-height: 44px; margin: -8px 0 4px; font-weight: 600; text-decoration: none; }

/* Mensajes */
.flash { border-radius: var(--radius-sm); padding: 12px 14px; margin-bottom: 12px; font-size: .95rem; }
.flash-ok { background: var(--ok-bg); color: var(--ok-ink); }
.flash-error { background: var(--err-bg); color: var(--err-ink); }
.field-error { color: var(--err-ink); font-size: .9rem; font-weight: 600; margin: 6px 0 0; }
.field-error[hidden] { display: none; }

/* ---------------------------------------------------------------- Formularios */
label { display: block; font-weight: 600; font-size: .92rem; color: var(--ink-2); }
.hint { display: block; font-weight: 400; color: var(--muted); font-size: .85rem; margin-top: 2px; }
input, select, textarea {
  display: block; width: 100%; margin-top: 6px;
  font: inherit; font-size: 16px; font-weight: 400; color: var(--ink);
  min-height: 48px; padding: 10px 12px;
  border: 1px solid #cdd3dd; border-radius: var(--radius-sm); background: #fff;
}
textarea { min-height: 88px; resize: vertical; }
input[aria-invalid="true"] { border-color: var(--danger); background: #fffafa; }
input::placeholder, textarea::placeholder { color: #8a93a3; }
.stack > * + * { margin-top: 14px; }
.input-row { display: flex; gap: 8px; margin-top: 6px; }
.input-row input { margin-top: 0; min-width: 0; flex: 1; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; min-height: 44px; padding-top: 10px; }
.check input { width: 20px; height: 20px; min-height: 0; margin: 2px 0 0; flex: none; }
fieldset.radios { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 4px 12px 8px; margin: 0; }
fieldset.radios legend { font-weight: 600; font-size: .92rem; color: var(--ink-2); padding: 0 4px; }
fieldset.radios label { display: flex; gap: 10px; align-items: center; font-weight: 400; min-height: 44px; color: var(--ink); }
fieldset.radios input { width: 20px; height: 20px; min-height: 0; margin: 0; flex: none; }

/* ---------------------------------------------------------------- Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 10px 16px;
  border-radius: var(--radius-sm); border: 1px solid #cdd3dd; background: #fff; color: var(--ink);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; text-align: center;
  transition: background-color 120ms ease-out, transform 120ms ease-out;
}
.btn:active { transform: scale(.98); background: var(--surface-2); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:active { background: #1f48d6; }
.btn-danger { color: var(--danger); border-color: var(--danger-line); }
.btn-block { width: 100%; }
.btn[disabled], .btn[aria-busy="true"] { opacity: .65; cursor: progress; }
@media (hover: hover) and (pointer: fine) {
  .btn:hover { background: var(--surface-2); }
  .btn-primary:hover { background: #2350e8; }
  .topnav a:hover, .navbtn:hover { color: #fff; }
  .plate-row:hover { background: var(--surface-2); }
}
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.actions form { margin: 0; }
.actions .btn { flex: 1 1 140px; }

/* ---------------------------------------------------------------- Listado */
.search-form { display: grid; gap: 10px; }
.search-main { display: flex; gap: 8px; }
.search-main input { margin-top: 0; flex: 1; min-width: 0; }
.search-filters { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.search-filters select { margin-top: 0; }
.list-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin: 16px 0 4px; }
.list-head p { margin: 0; }
.list-head a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 4px; }
.batch-status { margin: 8px 0 0; }
.batch-status:empty { display: none; }
.plates { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.plates li { border-bottom: 1px solid var(--line); }
.plate-row { display: block; padding: 12px 4px; color: inherit; text-decoration: none; min-height: 56px; }
.plate-row:active { background: var(--surface-2); }
.row-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.pid { font-family: var(--mono); font-weight: 700; letter-spacing: .08em; font-size: 1rem; }
.pid.big { font-size: 1.6rem; letter-spacing: .1em; }
.biz { margin-top: 2px; overflow-wrap: anywhere; }
.dest { color: var(--muted); font-size: .85rem; font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip { display: inline-block; font-size: .75rem; background: #eef1f6; color: var(--muted); border-radius: 999px; padding: 1px 8px; vertical-align: 1px; }
.empty-state { text-align: center; padding: 24px 8px; }
.empty-state p { color: var(--muted); }
.pager { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-top: 12px; }
details.create summary { display: flex; align-items: center; justify-content: space-between; min-height: 44px; cursor: pointer; list-style: none; }
details.create summary::-webkit-details-marker { display: none; }
details.create summary h2 { margin: 0; }
details.create summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--muted); }
details.create[open] summary::after { content: "−"; }
.grid-form { display: grid; gap: 14px; grid-template-columns: 1fr; margin-top: 12px; }

/* ---------------------------------------------------------------- Estados */
.badge { display: inline-block; font-size: .78rem; font-weight: 700; border-radius: 999px; padding: 3px 10px; white-space: nowrap; }
.badge-unassigned { background: #eef1f6; color: #344054; }
.badge-active { background: var(--ok-bg); color: var(--ok-ink); }
.badge-paused { background: var(--warn-bg); color: var(--warn-ink); }

/* ---------------------------------------------------------------- Placa */
.plate-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.plate-head h1 { margin: 0; }
.eyebrow { display: block; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.summary { margin: 0 0 14px; display: grid; gap: 10px; }
.summary div { display: grid; gap: 2px; }
.summary dt { font-size: .8rem; color: var(--muted); font-weight: 600; }
.summary dd { margin: 0; overflow-wrap: anywhere; }
.summary .url { font-family: var(--mono); font-size: .9rem; }
.perm { border-style: dashed; background: var(--surface-2); }
.perm h2 { display: flex; align-items: center; gap: 8px; }
.perm-link { font-family: var(--mono); font-size: .92rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px; overflow-wrap: anywhere; word-break: break-all; margin-bottom: 10px; user-select: all; -webkit-user-select: all; }
.qr-box { margin-top: 16px; display: grid; gap: 12px; justify-items: center; }
.qr-preview { width: 220px; max-width: 70vw; border: 1px solid var(--line); border-radius: 8px; background: #fff; overflow: hidden; min-height: 120px; }
.qr-preview img { width: 100%; height: auto; display: block; }
.qr-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; width: 100%; }
.history { list-style: none; padding: 0; margin: 0; font-size: .9rem; }
.history li { padding: 8px 0; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
.history li:first-child { border-top: 0; }
.history .url { font-family: var(--mono); font-size: .85rem; }
table.diff { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: .92rem; table-layout: fixed; }
table.diff th, table.diff td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; vertical-align: top; }
table.diff thead th:first-child { width: 24%; }

@media (min-width: 640px) {
  .wrap { padding-top: 24px; }
  .card { padding: 20px; }
  .grid-form { grid-template-columns: 1fr 1fr; }
  .grid-form .span2 { grid-column: span 2; }
  .search-form { grid-template-columns: 1fr 200px 200px; }
  .search-filters { display: contents; }
  .qr-box { grid-template-columns: 220px 1fr; justify-items: start; align-items: center; }
  .qr-buttons { grid-template-columns: 1fr; max-width: 240px; }
}
.more-actions { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
h3.eyebrow { margin: 0; }
.meta { margin: 12px 0 0; }
.login { margin-top: 24px; }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; color: var(--ink); }
.login-brand div { display: grid; }
.login-brand strong { font-size: 1.15rem; }
.actions form { flex: 1 1 140px; }
.actions form .btn { width: 100%; }
@media (max-width: 419px) {
  .search-filters { grid-template-columns: 1fr; }
}
/* Selección de placas y etiquetas traseras */
.plate-item { display: flex; align-items: stretch; }
.plate-item .plate-row { flex: 1; min-width: 0; }
.select-box { display: flex; align-items: center; justify-content: center; width: 44px; flex: none; cursor: pointer; }
.select-box input, .label-bar .check input { width: 22px; height: 22px; min-height: 0; margin: 0; flex: none; }
.label-bar { display: grid; gap: 8px; padding: 12px; margin: 8px 0 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2); }
.label-bar .check { padding-top: 0; align-items: center; }
.label-bar p { margin: 0; }
.back-label { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
.back-label .btn { margin-top: 8px; }