/* GASA — pantalla de ingreso. Minimalista y técnica: hoja de datos de instrumento.
   Acero plano, reglas de 1px, marcas de registro en las esquinas.
   Acento de marca #4291bb (cyan del logo); ámbar sólo para la lectura de presión. */
:root {
  --bg: #0e1922;
  --panel: #0f1a24;
  --field: #15222d;
  --brand: #4291bb;
  --brand-lit: #6fc3e8;
  --amber: #f2a93b;
  --ink: #e7eef3;
  --muted: #7c94a3;
  --faint: #48606c;
  --line: rgba(120, 160, 180, 0.14);
  --line-strong: rgba(120, 160, 180, 0.24);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    sans-serif;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
  -webkit-font-smoothing: antialiased;
}

.unit {
  position: relative;
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 38px 34px 30px;
}

/* marcas de registro en las esquinas */
.crop {
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
}

.c1 {
  top: -1px;
  left: -1px;
  border-top: 1.5px solid var(--brand);
  border-left: 1.5px solid var(--brand);
}

.c2 {
  top: -1px;
  right: -1px;
  border-top: 1.5px solid var(--brand);
  border-right: 1.5px solid var(--brand);
}

.c3 {
  bottom: -1px;
  left: -1px;
  border-bottom: 1.5px solid var(--brand);
  border-left: 1.5px solid var(--brand);
}

.c4 {
  bottom: -1px;
  right: -1px;
  border-bottom: 1.5px solid var(--brand);
  border-right: 1.5px solid var(--brand);
}

.head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 4px;
}

.wordmark {
  font-family: "Archivo", sans-serif;
  font-weight: 800;
  font-size: 26px;
  letter-spacing: 0.34em;
  padding-left: 0.34em;
  color: var(--ink);
}

.rev {
  font-family: "Space Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--faint);
}

.eyebrow {
  font-family: "Space Mono", monospace;
  font-size: 9.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 20px 0 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: "Space Mono", monospace;
  font-size: 9.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
}

.status .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-lit);
  box-shadow: 0 0 6px var(--brand-lit);
  animation: pulse 2.6s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

/* ===== controles ===== */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  width: 100%;
  padding: 13px 16px;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  cursor: pointer;
  text-decoration: none;
  background: var(--field);
  color: var(--ink);
  transition:
    border-color 0.16s ease,
    background 0.16s ease;
}

.btn:hover {
  border-color: var(--brand);
}

.btn svg {
  width: 17px;
  height: 17px;
}

.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #08131a;
  margin-top: 2px;
}

.btn-primary:hover {
  background: var(--brand-lit);
  border-color: var(--brand-lit);
}

.sep {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 4px;
  font-family: "Space Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.28em;
  color: var(--faint);
  text-transform: uppercase;
}

.sep::before,
.sep::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.dev-note {
  font-family: "Space Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  text-align: center;
  margin: 7px 0 16px;
}

.field {
  margin-bottom: 13px;
  text-align: left;
}

.field label {
  display: block;
  font-family: "Space Mono", monospace;
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 6px;
  background: var(--field);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  font:
    500 14.5px "Inter",
    sans-serif;
}

.field input::placeholder {
  color: var(--faint);
}

.field input:focus {
  outline: none;
  border-color: var(--brand);
}

.alert {
  background: rgba(242, 169, 59, 0.1);
  border: 1px solid rgba(242, 169, 59, 0.4);
  color: #f2c888;
  border-radius: 6px;
  padding: 9px 12px;
  font-size: 12.5px;
  text-align: center;
  margin-bottom: 12px;
  font-family: "Space Mono", monospace;
  letter-spacing: 0.04em;
}

.foot {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  font-family: "Space Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--faint);
  text-transform: uppercase;
}

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

@media (prefers-reduced-motion: reduce) {
  .status .dot {
    animation: none;
  }
}

@media (max-width: 400px) {
  .unit {
    padding: 30px 22px;
  }
  .wordmark {
    font-size: 22px;
  }
}