/* Pagina de acceso (public/index.php). Escritorio: foto + formulario; celular: una sola columna. */
:root {
  --lg-azul: #2f6fdc;
  --lg-azul-claro: #5596fb;
  --lg-azul-oscuro: #1d3f72;
  --lg-tinta: #14213d;
  --lg-gris: #667085;
  --lg-borde: #d0d5dd;
  --lg-fondo: #f3f6fb;
  --lg-error: #b42318;
  --lg-error-fondo: #fef3f2;
  --lg-aviso: #93370d;
  --lg-aviso-fondo: #fffaeb;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { min-height: 100%; }

body {
  background: var(--lg-fondo);
  color: var(--lg-tinta);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.lg {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  min-height: 100vh;
  min-height: 100dvh;
}

/* ---- Marca (foto) ---- */
.lg-marca { overflow: hidden; position: relative; }
.lg-foto { height: 100%; inset: 0; object-fit: cover; position: absolute; width: 100%; }
.lg-marca::after {
  background: linear-gradient(160deg, rgba(29, 63, 114, .55) 0%, rgba(29, 63, 114, .92) 75%);
  content: "";
  inset: 0;
  position: absolute;
}
.lg-marca-texto { bottom: 0; color: #fff; left: 0; padding: 48px; position: absolute; right: 0; z-index: 1; }
.lg-logo-blanco { display: block; height: 44px; margin-bottom: 20px; width: auto; }
.lg-marca-texto h2 { font-size: 2rem; font-weight: 700; line-height: 1.2; max-width: 520px; }
.lg-marca-texto p { font-size: 1.05rem; margin-top: 10px; opacity: .85; }

/* ---- Formulario ---- */
.lg-panel {
  align-items: center;
  background: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 24px;
}
.lg-form { max-width: 380px; width: 100%; }
.lg-logo { display: block; height: 72px; margin: 0 auto 18px; object-fit: contain; width: auto; }
.lg-form h1 { font-size: 1.6rem; font-weight: 700; text-align: center; }
.lg-sub { color: var(--lg-gris); margin: 2px 0 26px; text-align: center; }

.lg-campo { margin-bottom: 18px; }
.lg-campo label { display: block; font-size: .92rem; font-weight: 600; margin-bottom: 6px; }
.lg-campo input {
  background: #fff;
  border: 1px solid var(--lg-borde);
  border-radius: 10px;
  color: var(--lg-tinta);
  font: inherit;
  font-size: 16px; /* evita el zoom automatico de iOS */
  min-height: 48px;
  padding: 10px 14px;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.lg-campo input:focus { border-color: var(--lg-azul); box-shadow: 0 0 0 4px rgba(47, 111, 220, .15); outline: none; }
.lg-campo input[aria-invalid="true"] { border-color: var(--lg-error); }

.lg-pass { position: relative; }
.lg-pass input { padding-right: 92px; }
.lg-ver {
  background: none;
  border: 0;
  border-radius: 8px;
  color: var(--lg-azul);
  cursor: pointer;
  font: inherit;
  font-size: .88rem;
  font-weight: 600;
  min-height: 40px;
  padding: 0 12px;
  position: absolute;
  right: 4px;
  top: 4px;
}
.lg-ver:focus-visible { outline: 2px solid var(--lg-azul); }
.lg-mayus { color: var(--lg-aviso); display: block; font-size: .85rem; margin-top: 6px; }
.lg-mayus[hidden] { display: none; }

.lg-mensaje { border-radius: 10px; font-size: .93rem; margin-bottom: 14px; }
.lg-mensaje:empty { display: none; }
.lg-mensaje.lg-error { background: var(--lg-error-fondo); border: 1px solid #fda29b; color: var(--lg-error); padding: 10px 12px; }
.lg-mensaje.lg-bloqueo { background: var(--lg-aviso-fondo); border: 1px solid #fec84b; color: var(--lg-aviso); padding: 10px 12px; }

.lg-btn {
  align-items: center;
  background: linear-gradient(90deg, var(--lg-azul-claro), var(--lg-azul));
  border: 0;
  border-radius: 10px;
  color: #fff;
  cursor: pointer;
  display: flex;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  gap: 10px;
  justify-content: center;
  min-height: 50px;
  transition: filter .15s;
  width: 100%;
}
.lg-btn:hover { filter: brightness(1.05); }
.lg-btn:focus-visible { outline: 3px solid rgba(47, 111, 220, .4); outline-offset: 2px; }
.lg-btn:disabled { cursor: not-allowed; filter: grayscale(.4); opacity: .7; }
.lg-girando {
  animation: lg-giro .8s linear infinite;
  border: 3px solid rgba(255, 255, 255, .4);
  border-radius: 50%;
  border-top-color: #fff;
  height: 18px;
  width: 18px;
}
@keyframes lg-giro { to { transform: rotate(360deg); } }

.lg-nota { color: var(--lg-gris); font-size: .82rem; margin-top: 16px; text-align: center; }
.lg-pie { color: var(--lg-gris); font-size: .8rem; margin-top: 28px; }

/* ---- Tableta ---- */
@media (max-width: 960px) {
  .lg { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .lg-marca-texto { padding: 32px; }
  .lg-marca-texto h2 { font-size: 1.5rem; }
}

/* ---- Celular: encabezado compacto con la foto y formulario a todo lo ancho ---- */
@media (max-width: 720px) {
  .lg { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; }
  .lg-marca { min-height: 150px; }
  .lg-marca-texto { padding: 20px 20px 22px; }
  .lg-logo-blanco { height: 34px; margin-bottom: 8px; }
  .lg-marca-texto h2 { font-size: 1.1rem; }
  .lg-marca-texto p { display: none; }
  .lg-panel {
    border-radius: 20px 20px 0 0;
    justify-content: flex-start;
    margin-top: -18px;
    padding: 28px 20px calc(24px + env(safe-area-inset-bottom));
    position: relative;
    z-index: 2;
  }
  .lg-logo { display: none; }
  .lg-form h1 { font-size: 1.4rem; text-align: left; }
  .lg-sub { margin-bottom: 20px; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  .lg-girando { animation-duration: 2s; }
}