*, *::before, *::after { box-sizing: border-box; }
html { color-scheme: dark; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  font-family: var(--font-body);
  color: var(--on-blue);
  background:
    radial-gradient(60rem 36rem at 80% -10%, rgba(0, 79, 0, 0.55), transparent 62%),
    radial-gradient(40rem 28rem at 4% 110%, rgba(143, 212, 143, 0.14), transparent 60%),
    var(--bg-b);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--soon); color: var(--blue-ink); }
.gate {
  width: min(100%, 25.5rem);
  display: grid;
  gap: 1.8rem;
  animation: gate-in 600ms var(--ease-out) both;
}
.gate__logo { height: 2.4rem; width: auto; }
.gate__for {
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.85rem;
  color: var(--on-blue-soft);
}
/* el logo de MI es azul: sobre fondo oscuro va en blanco */
.gate__for img { height: 1.35rem; width: auto; filter: brightness(0) invert(1); }
h1 {
  margin: 0;
  font-family: var(--font-plate);
  font-weight: 600;
  font-size: clamp(1.9rem, 6vw, 2.45rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
.gate__text { margin: 0.8rem 0 0; color: var(--on-blue-soft); font-size: 1.05rem; line-height: 1.5; }
.gate__form {
  display: grid;
  gap: 0.6rem;
  padding: 1.3rem;
  border-radius: 1.1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-dark);
}
label { font-weight: 600; font-size: 0.92rem; }
.gate__field { position: relative; }
.gate__ic {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  translate: 0 -50%;
  width: 1.15rem;
  height: 1.15rem;
  color: var(--on-blue-soft);
  pointer-events: none;
}
input {
  width: 100%;
  height: 3.1rem;
  padding: 0 3rem 0 2.6rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(181, 209, 179, 0.32);
  background: rgba(0, 18, 0, 0.6);
  color: var(--on-blue);
  font: inherit;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  caret-color: var(--blue-lit);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
input::placeholder { color: rgba(181, 209, 179, 0.7); letter-spacing: 0; }
input:focus { outline: none; border-color: var(--blue-lit); box-shadow: 0 0 0 3px rgba(143, 212, 143, 0.28); }
input[aria-invalid="true"] { border-color: #e28a83; }
.gate__eye {
  position: absolute;
  right: 0.35rem;
  top: 50%;
  translate: 0 -50%;
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 0.6rem;
  background: transparent;
  color: var(--on-blue-soft);
  cursor: pointer;
}
.gate__eye svg { width: 1.2rem; height: 1.2rem; }
.gate__eye[aria-pressed="true"] { color: var(--on-blue); background: rgba(181, 209, 179, 0.12); }
.gate__msg { margin: 0; min-height: 1.4em; font-size: 0.92rem; color: #f0a7a1; line-height: 1.4; }
.gate__go {
  position: relative;
  height: 3.1rem;
  border: 0;
  border-radius: 99px;
  background: var(--plate);
  color: var(--on-plate);
  font: inherit;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 160ms var(--ease-out), background-color 160ms ease;
}
.gate__go:active { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) { .gate__go:hover { background: #fff; } }
.gate__spin {
  position: absolute;
  right: 1.1rem;
  top: 50%;
  width: 1.1rem;
  height: 1.1rem;
  margin-top: -0.55rem;
  border-radius: 50%;
  border: 2px solid rgba(18, 26, 18, 0.2);
  border-top-color: var(--blue);
  opacity: 0;
}
.is-busy .gate__spin { opacity: 1; animation: spin 700ms linear infinite; }
.is-busy .gate__go { cursor: progress; }
.gate__foot { margin: 0; font-size: 0.8rem; color: var(--on-blue-soft); }
:focus-visible { outline: 3px solid var(--soon); outline-offset: 3px; }
input:focus-visible { outline: none; }
@keyframes gate-in { from { opacity: 0; transform: translateY(10px); } }
@keyframes spin { to { transform: rotate(1turn); } }
.shake { animation: shake 360ms var(--ease-out); }
@keyframes shake { 20% { transform: translateX(-6px); } 45% { transform: translateX(5px); } 70% { transform: translateX(-3px); } }
@media (prefers-reduced-motion: reduce) {
  .gate, .shake { animation: none; }
  .is-busy .gate__spin { animation-duration: 2s; }
}