:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #f0f1f4;
  --text: #1b1d22;
  --muted: #646a76;
  --border: #dcdfe5;
  --accent: #c8102e;
  --accent-text: #ffffff;
  --accent-soft: #fbe7ea;
  --ok: #157f3b;
  --ok-soft: #e3f4e9;
  --warn: #9a5b00;
  --warn-soft: #fff3dc;
  --danger: #b42318;
  --focus: #2f6fed;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121418;
    --surface: #1b1e24;
    --surface-2: #23272f;
    --text: #e8eaee;
    --muted: #9aa1ad;
    --border: #2f343d;
    --accent: #e8475f;
    --accent-text: #ffffff;
    --accent-soft: #3a1c22;
    --ok: #4cc27a;
    --ok-soft: #173223;
    --warn: #f0b350;
    --warn-soft: #3a2c12;
    --danger: #f26b5e;
    --focus: #6c9cff;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
[hidden] { display: none !important; }
h1 { font-size: 1.35rem; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 0 0 10px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
a { color: var(--accent); }

/* ---- barra superior ---- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 16px;
  padding: 10px 16px;
  background: var(--accent); color: var(--accent-text);
}
.brand { font-weight: 700; letter-spacing: .2px; white-space: nowrap; }
.nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.nav a {
  color: var(--accent-text); text-decoration: none; padding: 6px 10px; border-radius: 6px;
  opacity: .85; white-space: nowrap;
}
.nav a.activo { background: rgba(255, 255, 255, .2); opacity: 1; }
.user { position: relative; }
.user .link { color: var(--accent-text); background: none; border: 0; cursor: pointer; font: inherit; padding: 6px 4px; }
.menu {
  position: absolute; right: 0; top: 100%; margin-top: 6px; min-width: 190px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .15); overflow: hidden;
}
.menu button {
  display: block; width: 100%; text-align: left; background: none; border: 0; color: var(--text);
  padding: 10px 14px; font: inherit; cursor: pointer;
}
.menu button:hover { background: var(--surface-2); }

main { max-width: 980px; margin: 0 auto; padding: 16px; }

/* ---- tarjetas y formularios ---- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow);
}
label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 4px; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px;
}
textarea { resize: vertical; min-height: 80px; }
input:focus, select:focus, textarea:focus, button:focus-visible {
  outline: 2px solid var(--focus); outline-offset: 1px;
}
.campo { margin-bottom: 12px; }
.fila { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.fila > * { flex: 1 1 160px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 600; cursor: pointer;
  padding: 10px 16px; border-radius: 8px; border: 1px solid transparent;
  background: var(--accent); color: var(--accent-text); white-space: nowrap;
}
.btn:disabled { opacity: .55; cursor: default; }
.btn.sec { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.peligro { background: var(--danger); }
.btn.chico { padding: 5px 10px; font-size: .85rem; }
.btn.grande { padding: 14px 20px; font-size: 1.05rem; }

/* ---- captura ---- */
.modos { display: flex; gap: 6px; margin-bottom: 10px; }
.modos button {
  flex: 1; font: inherit; padding: 8px; border-radius: 8px; cursor: pointer;
  background: var(--surface-2); color: var(--text); border: 1px solid var(--border);
}
.modos button.sel { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); font-weight: 600; }
.busqueda { display: flex; gap: 8px; }
.busqueda input { font-size: 1.25rem; padding: 12px 14px; letter-spacing: .5px; flex: 1; min-width: 0; }
.busqueda .btn { padding: 0 14px; }

.resultados { list-style: none; margin: 0; padding: 0; }
.resultados li button {
  display: block; width: 100%; text-align: left; font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; margin-bottom: 6px; cursor: pointer;
}
.resultados li button:hover { border-color: var(--accent); }

.datos { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 10px; }
.dato { background: var(--surface-2); border-radius: 8px; padding: 8px 10px; min-width: 0; }
.dato .et { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.dato .val { font-weight: 600; overflow-wrap: anywhere; }
.dato.ancho { grid-column: 1 / -1; }
details summary { cursor: pointer; color: var(--muted); margin-top: 10px; }

.tipos { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin-bottom: 12px; }
.tipos button {
  font: inherit; font-weight: 600; padding: 12px 8px; border-radius: 8px; cursor: pointer;
  background: var(--surface); color: var(--text); border: 2px solid var(--border);
}
.tipos button.sel { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }

.aviso { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; }
.aviso.warn { background: var(--warn-soft); color: var(--warn); }
.aviso.ok { background: var(--ok-soft); color: var(--ok); }
.aviso.error { background: var(--accent-soft); color: var(--danger); }

.acciones { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }

/* ---- tablas ---- */
.tabla-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); white-space: nowrap; }
.etiqueta {
  display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: .78rem; font-weight: 600;
  background: var(--surface-2); white-space: nowrap;
}
.paginacion { display: flex; gap: 8px; align-items: center; justify-content: flex-end; margin-top: 10px; }

/* ---- login ---- */
.login { max-width: 360px; margin: 10vh auto 0; }
.login h1 { text-align: center; }

/* ---- scanner ---- */
dialog.scanner {
  border: 0; border-radius: var(--radius); padding: 12px; width: min(520px, 94vw);
  background: var(--surface); color: var(--text);
}
dialog::backdrop { background: rgba(0, 0, 0, .6); }
.scanner-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
#lector { width: 100%; border-radius: 8px; overflow: hidden; background: #000; min-height: 200px; }

/* ---- toast ---- */
.toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%) translateY(20px);
  background: #1b1d22; color: #fff; padding: 12px 18px; border-radius: 8px; opacity: 0;
  pointer-events: none; transition: .2s; max-width: calc(100vw - 32px); z-index: 50;
}
.toast.ver { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--danger); }
.toast.ok { background: var(--ok); }

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; gap: 6px 12px; padding: 8px 16px; }
  .nav { order: 3; flex-basis: 100%; }
  .user { margin-left: auto; }
  main { padding: 12px 16px; }
  .ocultar-movil { display: none; }
}