:root {
  color-scheme: light;
  --petroleo: #103d42;
  --petroleo-suave: #1c5057;
  --arena: #eee4d2;
  --mandarina: #ff8a4c;
  --papel: #fffdf8;
  --fondo: #f6f1e7;
  --tinta: #16282b;
  --tenue: #566669;
  --linea: #d9d1c1;
  --error: #a32a12;
  --error-fondo: #fbe9e3;
  --ok: #17603a;
  --ok-fondo: #e4f2e8;
  --aviso-fondo: #fdf1d8;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--fondo);
  color: var(--tinta);
  font: 400 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

.oculto { display: none !important; }

.cabecera {
  background: var(--petroleo);
  color: var(--arena);
  padding: 14px 16px;
}
.cabecera div { max-width: 760px; margin: 0 auto; display: flex; justify-content: space-between; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.panel .cabecera div { max-width: 1040px; }
.marca { font-weight: 600; font-size: 17px; letter-spacing: 0.01em; }
.cabecera small { font-size: 14px; opacity: 0.85; overflow-wrap: anywhere; }

.banda-prueba {
  background: var(--error);
  color: #fff;
  text-align: center;
  font-weight: 600;
  font-size: 14px;
  padding: 6px 16px;
}

main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
.panel main { max-width: 1040px; }

h1 { font-size: 26px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 20px; line-height: 1.3; margin: 0 0 12px; }
h3 { font-size: 17px; margin: 20px 0 8px; }
p { margin: 0 0 12px; }
.tenue { color: var(--tenue); font-size: 15px; }
.huella { font: 13px/1.5 ui-monospace, Consolas, Menlo, monospace; overflow-wrap: anywhere; }

.tarjeta {
  background: var(--papel);
  border: 1px solid var(--linea);
  border-radius: 10px;
  padding: 22px;
  margin-bottom: 20px;
}

/* El contrato */
.documento { padding: 28px; }
.documento .d-titulo { font-size: 24px; line-height: 1.25; font-weight: 700; margin: 0 0 18px; }
.documento .d-subtitulo { font-weight: 700; margin: 18px 0 8px; }
.documento p { margin: 0 0 12px; }
.tabla-marco { overflow-x: auto; margin: 4px 0 16px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { border-bottom: 1px solid var(--linea); padding: 8px 10px; text-align: left; vertical-align: top; }
th { font-weight: 700; }

/* Formularios */
label { display: block; font-weight: 600; font-size: 15px; margin: 14px 0 4px; }
input[type="text"], input[type="email"], input[type="number"], input[type="file"], textarea {
  width: 100%;
  font: inherit;
  font-size: 16px;
  color: inherit;
  padding: 10px 12px;
  border: 1px solid #a8a395;
  border-radius: 7px;
  background: #fff;
}
textarea { min-height: 260px; resize: vertical; line-height: 1.5; }
input[readonly] { background: var(--fondo); color: var(--tenue); }
:focus-visible { outline: 3px solid var(--petroleo-suave); outline-offset: 2px; }
.ayuda { font-size: 14px; color: var(--tenue); margin: 4px 0 0; }

.casilla {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  align-items: start;
  font-weight: 400;
  font-size: 16px;
  margin: 16px 0;
  cursor: pointer;
}
.casilla input { width: 20px; height: 20px; margin: 3px 0 0; }
.casilla.apagada { color: var(--tenue); cursor: not-allowed; }

.boton {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  min-height: 46px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: var(--mandarina);
  color: var(--petroleo);
  cursor: pointer;
  text-decoration: none;
}
.boton:hover:not(:disabled) { background: #f97d3c; }
.boton:disabled { opacity: 0.5; cursor: not-allowed; }
.boton.sec { background: transparent; border-color: var(--petroleo); }
.boton.sec:hover:not(:disabled) { background: var(--arena); }
.boton.peligro { background: transparent; border-color: var(--error); color: var(--error); }
.boton.peligro:hover:not(:disabled) { background: var(--error-fondo); }
.boton-link { background: none; border: 0; padding: 0; color: var(--petroleo); font: inherit; text-decoration: underline; cursor: pointer; }
.acciones { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

.mensaje { border-radius: 7px; padding: 10px 14px; margin: 12px 0; font-size: 15px; }
.mensaje.error { background: var(--error-fondo); color: var(--error); }
.mensaje.ok { background: var(--ok-fondo); color: var(--ok); }
.mensaje.aviso { background: var(--aviso-fondo); }

.codigo-entrada { font-size: 24px !important; letter-spacing: 0.3em; max-width: 220px; text-align: center; }

dl { display: grid; grid-template-columns: minmax(120px, 190px) 1fr; gap: 6px 14px; margin: 0; font-size: 15px; }
dt { font-weight: 600; }
dd { margin: 0; overflow-wrap: anywhere; }

/* Panel */
.fila-titulo { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.fila-titulo h1 { margin: 0; }
.estado { display: inline-block; font-size: 13px; font-weight: 600; padding: 2px 9px; border-radius: 99px; background: var(--arena); white-space: nowrap; }
.estado.firmado { background: var(--ok-fondo); color: var(--ok); }
.estado.anulado { background: var(--error-fondo); color: var(--error); }
.grilla-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.caja-link { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.caja-link input { flex: 1 1 280px; font: 13px ui-monospace, Consolas, monospace; }
.vista-previa { border: 1px dashed var(--linea); border-radius: 8px; background: #fff; padding: 18px; margin-top: 12px; max-height: 520px; overflow: auto; }
.pie { text-align: center; font-size: 14px; color: var(--tenue); padding: 0 16px 32px; }
.pie a { color: inherit; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .tarjeta, .documento { padding: 16px; }
  .grilla-2 { grid-template-columns: 1fr; }
  dl { grid-template-columns: 1fr; gap: 0; }
  dd { margin-bottom: 10px; }
  .acciones .boton { width: 100%; }
}