:root {
  --bg: #f3f6ff;
  --glass: rgba(255, 255, 255, 0.72);
  --stroke: rgba(0, 0, 0, 0.06);
  --shadow: 0 12px 40px rgba(16, 24, 40, 0.10);
  --radius: 18px;
}

body {
  margin: 0;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  /* Antes era un hotlink a la CDN de Facebook con URL firmada y caducidad
     (oe=...): al vencer, el fondo se quedaba en blanco. Ahora es local. */
  background: url("/static/images/Grand%20Hotel.jpg") no-repeat center center;
  background-size: cover;
  z-index: -1;
}

.bg-grid {
  min-height: 100vh;
  background:
    radial-gradient(circle at 1px 1px, rgba(30, 58, 138, 0.10) 1px, transparent 0) 0 0 / 28px 28px,
    linear-gradient(180deg, #f7f9ff, #eef3ff);
}

.glass-card {
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.brand-logo {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: rgba(59, 130, 246, 0.12);
}

.brand-logo.small {
  width: 42px;
  height: 42px;
  border-radius: 14px;
}

.brand-text {
  font-weight: 700;
  font-size: 28px;
  color: #1e3a8a;
}