/* ==========================================================
   UPV · landing mobile first
   Base = móvil. Los @media solo añaden cosas para pantallas
   grandes. Colores tomados de los tokens de upv.es.
   ========================================================== */

:root {
  --red: #e5554f;
  --red-medium: #d73333;
  --red-dark: #bf2d2d;
  --red-darkest: #a40e0e;
  --black: #111111;
  --gray-upv: #5b6770;
  --grey-light: #f1f1f1;
  --grey-medium: #cfcfcf;
  --grey-upv-dark: #3f4444;
  --white: #fff;

  --bg: #f4f5f7;
  --radius: 20px;
  --shadow: 0 3px 9px rgba(0, 0, 0, .2);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--black);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

img { max-width: 100%; display: block; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Barra superior ---------- */

.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--grey-medium);
  padding: 14px 20px;
  padding-top: max(14px, env(safe-area-inset-top));
}

.brand { display: inline-block; }

.brand__logo {
  width: auto;
  height: 34px;
}

.topbar--seccion {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar__etiqueta {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--white);
  background: var(--red-dark);
  border-radius: 999px;
  padding: 4px 12px;
}

/* ---------- Hero ---------- */

.hero {
  padding: 32px 20px 8px;
  max-width: 640px;
  margin: 0 auto;
}

.hero__eyebrow {
  margin: 0 0 6px;
  color: var(--red-darkest);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
}

.hero__title {
  margin: 0 0 10px;
  font-size: 1.75rem;
  line-height: 1.15;
  letter-spacing: -.02em;
}

.hero__text {
  margin: 0;
  color: var(--gray-upv);
}

/* ---------- Carné ---------- */

.card-wrap {
  padding: 24px 20px;
  max-width: 640px;
  margin: 0 auto;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* ---------- Selector de perfil ---------- */

[hidden] { display: none !important; }

.selector {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 16px;
}

.selector__titulo {
  margin: 0 0 16px;
  text-align: center;
  font-weight: 700;
}

.selector__opciones {
  display: grid;
  gap: 10px;
}

.selector__opcion {
  font: inherit;
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px;
  background: var(--white);
  border: 1.5px solid var(--grey-medium);
  border-radius: 12px;
}

.selector__opcion img {
  width: 52px;
  height: 65px;
  flex: 0 0 auto;
  object-fit: cover;
  border-radius: 6px;
  background: var(--grey-light);
}

.selector__opcion span { font-weight: 600; }

.selector__opcion:active {
  border-color: var(--red-dark);
  transform: scale(.99);
}

/* ---------- Giro de la tarjeta ---------- */

.carne__escena { perspective: 1200px; }

.carne {
  display: grid;                 /* las dos caras ocupan la misma celda, */
  transform-style: preserve-3d;  /* así la altura es la de la más alta   */
  transition: transform .6s cubic-bezier(.2, .7, .3, 1);
}

.carne.esta-girada { transform: rotateY(180deg); }

.carne__cara {
  grid-area: 1 / 1;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.carne__cara--reverso {
  transform: rotateY(180deg);
  pointer-events: none;
}

.carne.esta-girada .carne__cara--anverso { pointer-events: none; }
.carne.esta-girada .carne__cara--reverso { pointer-events: auto; }

.card__head {
  background: var(--red-dark);
  color: var(--white);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* el logo oficial viene en negro: lo pasamos a blanco */
.card__logo {
  width: auto;
  height: 26px;
  filter: brightness(0) invert(1);
}

.card__type {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  background: rgba(255, 255, 255, .2);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

/* foto + datos, uno al lado del otro ya en móvil */
.card__body {
  display: flex;
  gap: 14px;
  padding: 16px;
}

.card__photo {
  width: 84px;
  height: 105px;
  flex: 0 0 auto;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--grey-medium);
  background: var(--grey-light);
}

.card__data {
  margin: 0;
  min-width: 0;          /* deja que el texto largo se parta */
  display: grid;
  gap: 10px;
  align-content: start;
}

.field dt {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--gray-upv);
}

.field dd {
  margin: 0;
  font-size: .95rem;
  overflow-wrap: anywhere;
}

.field__strong {
  font-weight: 700;
  font-size: 1.05rem;
}

/* ---------- Pie del carné: QR ---------- */

.card__foot {
  border-top: 1px dashed var(--grey-medium);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.card__foot-text {
  display: grid;
  gap: 4px;
  font-size: .72rem;
  color: var(--gray-upv);
  letter-spacing: .04em;
}

.card__course {
  font-weight: 700;
  color: var(--black);
}

.qr-boton {
  font: inherit;
  cursor: pointer;
  background: var(--white);
  border: 1px solid var(--grey-medium);
  border-radius: 8px;
  padding: 4px;
}

.qr-boton:active { transform: scale(.97); }

.card__qr {
  flex: 0 0 auto;
  display: block;
}

/* 98 = 49 módulos x 2 px exactos, para que no se emborrone */
.card__qr img {
  width: 98px;
  height: 98px;
}

/* ---------- Reverso del carné ---------- */

.reverso__body {
  padding: 20px 16px 24px;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 12px;
  height: 100%;
}

/* 245 = 49 módulos x 5 px exactos */
.reverso__qr img {
  width: 245px;
  height: 245px;
  max-width: 100%;
}

.reverso__texto {
  margin: 0;
  text-align: center;
  font-size: .9rem;
  font-weight: 600;
}

.reverso__hint {
  margin: 0;
  text-align: center;
  font-size: .75rem;
  color: var(--gray-upv);
}

/* ==========================================================
   Intranet
   ========================================================== */

.sprite { display: none; }

.saludo {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 20px 8px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.saludo__foto {
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
  object-fit: cover;
  object-position: top;
  border-radius: 50%;
  border: 2px solid var(--white);
  box-shadow: var(--box-shadow-sm, 0 2px 6px rgba(0, 0, 0, .15));
}

.saludo__texto { min-width: 0; }

.saludo__hola {
  margin: 0;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--red-darkest);
}

.saludo__nombre {
  margin: 2px 0;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.2;
}

.saludo__meta {
  margin: 0;
  font-size: .8rem;
  color: var(--gray-upv);
}

.panel {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 20px 0;
}

.panel__titulo {
  margin: 0 0 12px;
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--gray-upv);
}

.rejilla {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.acceso {
  font: inherit;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  color: var(--black);
  background: var(--white);
  border: 1px solid var(--grey-medium);
  border-radius: 14px;
  padding: 14px;
  display: grid;
  gap: 10px;
  align-content: start;
  font-size: .85rem;
  font-weight: 600;
  line-height: 1.25;
}

.acceso__ico {
  width: 26px;
  height: 26px;
  color: var(--red-dark);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.acceso:active {
  border-color: var(--red-dark);
  transform: scale(.98);
}

.avisos {
  list-style: none;
  margin: 0;
  padding: 0;
  background: var(--white);
  border: 1px solid var(--grey-medium);
  border-radius: 14px;
}

.aviso {
  display: flex;
  gap: 12px;
  padding: 14px;
  border-bottom: 1px solid var(--grey-light);
}

.aviso:last-child { border-bottom: 0; }

.aviso__fecha {
  flex: 0 0 auto;
  width: 44px;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--red-darkest);
  padding-top: 2px;
}

.aviso__titulo {
  margin: 0 0 2px;
  font-size: .9rem;
  font-weight: 700;
}

.aviso__texto {
  margin: 0;
  font-size: .82rem;
  color: var(--gray-upv);
}

/* ---------- Botones ---------- */

.actions {
  padding: 0 20px 32px;
  max-width: 640px;
  margin: 0 auto;
  display: grid;
  gap: 10px;
}

.btn {
  display: block;
  text-align: center;
  text-decoration: none;
  padding: 14px 20px;
  border-radius: 999px;
  font-weight: 600;
  background: var(--white);
  color: var(--red-darkest);
  border: 1.5px solid var(--red-dark);
}

.btn--primary {
  background: var(--red-dark);
  color: var(--white);
}

.btn:active { transform: translateY(1px); }

/* ---------- Pie ---------- */

.footer {
  background: var(--grey-upv-dark);
  color: #cbd0d8;
  padding: 24px 20px;
  padding-bottom: max(24px, env(safe-area-inset-bottom));
  font-size: .8rem;
  text-align: center;
}

.footer p { margin: 0 0 4px; }

.footer__note { color: #99a0a0; }

.footer__cambiar {
  font: inherit;
  font-size: .8rem;
  cursor: pointer;
  color: var(--white);
  background: none;
  border: 1px solid #6c7373;
  border-radius: 999px;
  padding: 8px 16px;
  margin-bottom: 12px;
}

/* ==========================================================
   Pantallas medianas y grandes
   ========================================================== */

@media (min-width: 40rem) {   /* ~640px */

  .brand__logo { height: 40px; }

  .hero { padding-top: 48px; }
  .hero__title { font-size: 2.25rem; }
  .hero__text { font-size: 1.05rem; }

  .card__body { padding: 22px; gap: 20px; }
  .card__photo { width: 112px; height: 140px; }
  .field dd { font-size: 1rem; }
  .field__strong { font-size: 1.2rem; }

  .card__foot { padding: 16px 22px; }
  .card__foot-text { font-size: .8rem; }

  .actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .saludo { padding-top: 32px; }
  .saludo__foto { width: 68px; height: 68px; }
  .saludo__nombre { font-size: 1.35rem; }

  .rejilla { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 60rem) {   /* ~960px */

  .hero, .card-wrap, .actions, .saludo, .panel { max-width: 720px; }
}

/* Respeta la preferencia de menos movimiento */
@media (prefers-reduced-motion: reduce) {
  .btn:active,
  .qr-boton:active { transform: none; }
  .carne { transition: none; }
}