/* ==========================================================
   Gestor de Normas de Calidad
   Tokens de diseño
   ========================================================== */
:root {
  --fondo: #f6f7fb;
  --superficie: #ffffff;
  --superficie-2: #f1f4f9;
  --texto: #1b2433;
  --texto-suave: #5b6679;
  --borde: #e3e8f0;
  --primario: #3b5bdb;
  --primario-hover: #3149b8;
  --primario-suave: #e8edff;
  --on-primario: #ffffff;
  --ok: #237a34;
  --ok-suave: #e6f6ea;
  --alerta: #b04a0c;
  --alerta-suave: #fff1e6;
  --peligro: #c92a2a;
  --peligro-suave: #fdecec;
  --neutro: #4f5661;
  --neutro-suave: #eef0f3;
  --radio: 14px;
  --sombra: 0 1px 2px rgba(16, 24, 40, 0.04), 0 4px 16px rgba(16, 24, 40, 0.06);
  --fuente: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-tema="claro"]) {
    --fondo: #0f131c;
    --superficie: #171d29;
    --superficie-2: #1e2636;
    --texto: #e8ecf4;
    --texto-suave: #98a2b5;
    --borde: #2a3345;
    --primario: #748ffc;
    --primario-hover: #91a7ff;
    --primario-suave: #232d4d;
    --on-primario: #0f131c;
    --ok: #7bd88f;
    --ok-suave: #173322;
    --alerta: #ffa94d;
    --alerta-suave: #3a2416;
    --peligro: #ff8787;
    --peligro-suave: #3a1c1c;
    --neutro: #adb5bd;
    --neutro-suave: #222833;
    --sombra: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
  }
}

/* ==========================================================
   Base
   ========================================================== */
* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--fuente);
  font-size: 15px;
  line-height: 1.5;
  background: var(--fondo);
  color: var(--texto);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; letter-spacing: -0.01em; }
h2 { font-size: 1.05rem; font-weight: 650; }
small { color: var(--texto-suave); }
.ayuda { color: var(--texto-suave); margin: 4px 0 20px; }
.ayuda-corta { margin: 0 0 12px; font-size: 0.9rem; }
.error { color: var(--peligro); min-height: 1.4em; margin: 12px 0 0; }
.oculto { display: none !important; }
.separador { border: 0; border-top: 1px solid var(--borde); margin: 22px 0; }

:focus-visible {
  outline: 2px solid var(--primario);
  outline-offset: 2px;
}

/* ==========================================================
   Encabezado y navegación
   ========================================================== */
.encabezado {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  padding: 12px clamp(16px, 4vw, 32px);
  background: color-mix(in srgb, var(--superficie) 85%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--borde);
}

.marca { display: flex; align-items: center; gap: 12px; }
.marca h1 { font-size: 1rem; font-weight: 650; }
.marca small { font-size: 0.78rem; }

.marca-icono {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primario), #7048e8);
  color: var(--on-primario);
  font-weight: 700;
}

.navegacion {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--superficie-2);
  border-radius: 12px;
}
.navegacion button {
  border: 0;
  background: transparent;
  color: var(--texto-suave);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.navegacion button:hover { color: var(--texto); }
.navegacion button[aria-current="page"] {
  background: var(--superficie);
  color: var(--primario);
  box-shadow: var(--sombra);
}

.encabezado-acciones { display: flex; align-items: center; gap: 12px; }
.usuario { font-size: 0.85rem; color: var(--texto-suave); }

/* ==========================================================
   Login
   ========================================================== */
.login {
  min-height: calc(100vh - 80px);
  display: grid;
  place-items: center;
  padding: 24px;
}

.tarjeta-login { width: min(420px, 100%); }
.tarjeta-login h2 { font-size: 1.4rem; }

/* ==========================================================
   Layout y tarjetas
   ========================================================== */
main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px clamp(16px, 4vw, 32px) 48px;
}

.vista { display: grid; gap: 20px; }

.tarjeta {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 22px;
  box-shadow: var(--sombra);
}

.dos-columnas {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.tarjeta-resumen { display: grid; gap: 22px; }

.resumen-cabecera {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}

.selectores {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.selectores > div { min-width: 240px; flex: 1; }

.etiqueta {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--texto-suave);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Anillo de cumplimiento */
.anillo-contenedor { position: relative; width: 96px; height: 96px; }
.anillo { width: 100%; height: 100%; }
.anillo-fondo, .anillo-progreso { fill: none; stroke-width: 3; }
.anillo-fondo { stroke: var(--superficie-2); }
.anillo-progreso {
  stroke: var(--ok);
  stroke-linecap: round;
  transition: stroke-dasharray 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.anillo-contenedor span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1.1rem;
}

/* Métricas */
.metricas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-top: 18px;
}
.metrica {
  background: var(--superficie-2);
  border-radius: 12px;
  padding: 14px 16px;
  display: grid;
  gap: 2px;
}
.metrica span { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em; }
.metrica-ok span { color: var(--ok); }
.metrica-alerta span { color: var(--alerta); }

/* ==========================================================
   Formularios
   ========================================================== */
input, select, button {
  font: inherit;
  color: inherit;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="search"],
select {
  width: 100%;
  padding: 10px 12px;
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: 10px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="file"] {
  width: 100%;
  padding: 8px;
  border: 1px dashed var(--borde);
  border-radius: 10px;
  background: var(--superficie-2);
  font-size: 0.9rem;
}

::placeholder {
  color: var(--texto-suave);
  opacity: 1;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primario);
  box-shadow: 0 0 0 4px var(--primario-suave);
}

select:disabled, input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.formulario { display: grid; gap: 14px; }
.formulario label { display: grid; gap: 6px; font-size: 0.88rem; font-weight: 550; }

.formulario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  align-items: end;
}
.formulario-grid label { display: grid; gap: 6px; font-size: 0.88rem; font-weight: 550; }
.formulario-grid .acciones { grid-column: 1 / -1; }

.formulario-nc {
  display: grid;
  grid-template-columns: 1.2fr 2fr 1.6fr 1fr auto;
  gap: 10px;
  align-items: center;
}

.formulario-requisito {
  display: grid;
  grid-template-columns: 0.6fr 2fr 1fr auto;
  gap: 8px;
  align-items: center;
  width: 100%;
  margin-top: 12px;
}

.acciones { display: flex; gap: 10px; align-items: center; }
.acciones-derecha { justify-content: flex-end; margin-top: 18px; }

.boton-primario, .boton-fantasma {
  cursor: pointer;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 600;
  transition: background 0.15s, transform 0.05s, opacity 0.15s;
  white-space: nowrap;
}
.boton-primario {
  background: var(--primario);
  color: var(--on-primario);
  border: 1px solid transparent;
}
.boton-primario:hover { background: var(--primario-hover); }
.boton-primario:active { transform: translateY(1px); }
.boton-fantasma {
  background: transparent;
  border: 1px solid var(--borde);
  padding: 8px 14px;
}
.boton-fantasma:hover { background: var(--superficie-2); }
.boton-ancho { width: 100%; }

/* ==========================================================
   Tablas
   ========================================================== */
.seccion-cabecera {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
#buscar-requisito { width: min(320px, 100%); }

.tabla-contenedor { overflow-x: auto; margin: 0 -4px; }

table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 0.9rem; }
th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--borde);
  vertical-align: middle;
}
th {
  font-size: 0.75rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--texto-suave);
}
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: var(--superficie-2); }
td.texto-requisito { min-width: 260px; }
td.codigo { font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; }

/* Estado: píldora con punto de color */
.estado {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}
.estado::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.estado-cumple { background: var(--ok-suave); color: var(--ok); }
.estado-parcial { background: var(--alerta-suave); color: var(--alerta); }
.estado-no-cumple { background: var(--peligro-suave); color: var(--peligro); }
.estado-no-aplica, .estado-pendiente { background: var(--neutro-suave); color: var(--neutro); }

td select.selector-estado {
  width: auto;
  min-width: 150px;
  padding: 6px 10px;
  font-size: 0.88rem;
}
td input.observacion {
  padding: 6px 10px;
  font-size: 0.88rem;
}

.vacio { text-align: center; color: var(--texto-suave); padding: 32px 0; }

/* ==========================================================
   Asociación cliente ↔ normas
   ========================================================== */
.lista-check { display: grid; gap: 8px; margin-top: 14px; }
.opcion-check {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--borde);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.opcion-check:hover { background: var(--superficie-2); }
.opcion-check input { width: 18px; height: 18px; accent-color: var(--primario); }

/* ==========================================================
   Lista de normas
   ========================================================== */
.lista-normas { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.norma-item {
  width: 100%;
  display: grid;
  gap: 2px;
  text-align: left;
  padding: 12px 14px;
  background: var(--superficie-2);
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.norma-item:hover { border-color: var(--borde); }
.norma-item[aria-current="true"] { border-color: var(--primario); background: var(--primario-suave); }
.norma-item .titulo-nc { font-weight: 600; color: var(--texto); }

/* ==========================================================
   No conformidades
   ========================================================== */
.formulario-nc .boton-primario { white-space: nowrap; }

.lista-nc { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.lista-nc li {
  background: var(--superficie-2);
  border-radius: 12px;
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}
.lista-nc .titulo-nc { font-weight: 600; }
.lista-nc .meta { font-size: 0.82rem; color: var(--texto-suave); }

/* ==========================================================
   Avisos
   ========================================================== */
.avisos {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: grid;
  gap: 10px;
  z-index: 50;
}
.aviso {
  background: var(--texto);
  color: var(--fondo);
  padding: 12px 16px;
  border-radius: 10px;
  box-shadow: var(--sombra);
  font-size: 0.9rem;
  animation: entrar 0.25s ease-out;
}
@keyframes entrar {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width: 900px) {
  .dos-columnas { grid-template-columns: 1fr; }
  .formulario-nc { grid-template-columns: 1fr 1fr; }
  .formulario-nc button { grid-column: 1 / -1; }
  .formulario-requisito { grid-template-columns: 1fr 1fr; }
  .formulario-requisito button { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .encabezado-acciones .usuario { display: none; }
  .navegacion { width: 100%; justify-content: space-between; }
  .navegacion button { flex: 1; padding: 8px 6px; font-size: 0.9rem; }
  .selectores > div { min-width: 0; width: 100%; }
  .formulario-nc, .formulario-requisito { grid-template-columns: 1fr; }
  th:nth-child(3), td:nth-child(3) { display: none; }
  td.texto-requisito { min-width: 0; }
}

/* ==========================================================
   Informe imprimible
   ========================================================== */
.barra-informe { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }

.hoja {
  background: var(--superficie);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: clamp(20px, 4vw, 40px);
  box-shadow: var(--sombra);
  display: grid;
  gap: 26px;
}
.hoja-cabecera h2 { font-size: 1.4rem; }
.hoja-cabecera .ayuda { margin: 6px 0 0; }
.hoja h3 { font-size: 1rem; margin-bottom: 12px; }

.datos-cliente {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 18px;
  margin: 0;
  font-size: 0.92rem;
}
.datos-cliente dt { color: var(--texto-suave); font-weight: 600; }
.datos-cliente dd { margin: 0; }

.firma { display: flex; justify-content: flex-end; margin-top: 16px; }
.firma div {
  display: grid;
  gap: 2px;
  text-align: center;
  min-width: 260px;
  border-top: 1px solid var(--texto);
  padding-top: 8px;
}

/* Impresión: solo la hoja del informe, en blanco y negro */
@media print {
  html:root:not([data-tema="x"]) {
    --fondo: #ffffff;
    --superficie: #ffffff;
    --superficie-2: #f3f3f3;
    --texto: #000000;
    --texto-suave: #333333;
    --borde: #cccccc;
    --ok: #1d6b2c;
    --alerta: #9a4208;
    --peligro: #a61e1e;
    --neutro: #333333;
    --ok-suave: #e8f5ea;
    --alerta-suave: #fdf0e6;
    --peligro-suave: #fbe9e9;
    --neutro-suave: #eeeeee;
    --sombra: none;
  }

  @page { size: A4; margin: 14mm; }

  body { background: #ffffff; color: #000000; }
  header.encabezado, #navegacion, #btn-salir, #avisos, #pantalla-login, .no-imprimir,
  .vista:not(#vista-informe) { display: none !important; }

  main { padding: 0; max-width: none; }
  .hoja { border: none; box-shadow: none; padding: 0; border-radius: 0; gap: 18px; }
  .metrica, .estado, .lista-nc li { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  table, tr, .lista-nc li, .firma { break-inside: avoid; }
  thead { display: table-header-group; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}