.page-auth {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 30px;
  background:
    radial-gradient(circle at 18% 24%, rgba(45, 125, 255, .18), transparent 31%),
    radial-gradient(circle at 82% 76%, rgba(86, 199, 255, .08), transparent 28%),
    #02040a;
}

.auth-shell {
  position: relative;
  width: min(1160px, 100%);
  min-height: 710px;
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  overflow: hidden;
  border: 1px solid rgba(100, 195, 255, .24);
  border-radius: 32px;
  background: rgba(4, 10, 21, .88);
  box-shadow: 0 46px 130px rgba(0,0,0,.72), 0 0 70px rgba(45,125,255,.10);
}
.auth-shell::before {
  content: "";
  position: absolute;
  z-index: 4;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
  box-shadow: 0 0 18px rgba(86, 199, 255, .48);
}

.auth-visual {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 48px;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(7, 16, 31, .12), rgba(2, 6, 14, .82)),
    url('../img/aeron-inteligencia.webp') center/cover no-repeat;
}
.auth-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 6, 14, .18), rgba(2, 6, 14, .40)),
    radial-gradient(circle at 60% 36%, transparent 0 18%, rgba(2, 6, 14, .12) 45%, rgba(2, 6, 14, .74) 84%);
}
.auth-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(101,174,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(101,174,255,.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, #000, transparent 80%);
}
.auth-visual > * { position: relative; z-index: 2; }

.auth-brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.auth-brand img { width: 46px; height: 46px; }
.auth-brand strong { display: block; color: #fff; font: 600 .93rem/1.1 "Space Grotesk", sans-serif; letter-spacing: .18em; }
.auth-brand small { display: block; margin-top: 5px; color: var(--blue-2); font: 500 .58rem/1 JetBrains Mono, monospace; letter-spacing: .16em; }

.auth-manifesto { max-width: 520px; }
.auth-manifesto .eyebrow { color: #9fe7ff; }
.auth-manifesto h1 { margin: 0; font: 600 clamp(2.8rem, 5vw, 5rem)/.98 "Space Grotesk", sans-serif; letter-spacing: -.055em; color: #fff; }
.auth-manifesto p { max-width: 470px; margin: 22px 0 0; color: #9fb0c5; line-height: 1.75; }

.auth-systems { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 34px; }
.auth-system {
  min-height: 96px;
  padding: 14px;
  border: 1px solid rgba(110,199,255,.16);
  border-radius: 14px;
  background: rgba(3, 9, 19, .58);
  backdrop-filter: blur(14px);
}
.auth-system strong { display: block; color: #dff4ff; font-size: .72rem; }
.auth-system span { display: block; margin-top: 6px; color: #667b95; font: .56rem/1.45 JetBrains Mono, monospace; }

.auth-telemetry { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: #72859e; font: 500 .58rem/1.4 JetBrains Mono, monospace; letter-spacing: .06em; }
.auth-telemetry .status-pill { flex-shrink: 0; }

.auth-panel { position: relative; padding: 48px; display: flex; flex-direction: column; justify-content: center; background: rgba(4, 10, 21, .86); }
.auth-panel-head { margin-bottom: 28px; }
.auth-panel-head h2 { margin: 20px 0 0; font: 600 2.05rem/1 "Space Grotesk", sans-serif; letter-spacing: -.035em; color: #fff; }
.auth-panel-head p { margin: 10px 0 0; color: var(--muted); font-size: .84rem; line-height: 1.55; }
.auth-tabs { width: 100%; margin-bottom: 30px; }
.auth-tabs button { width: 100%; }

.auth-form { display: none; animation: auth-form-in .45s var(--ease) both; }
.auth-form.active { display: grid; gap: 16px; }
@keyframes auth-form-in { from { opacity: 0; transform: translateY(12px); } }

.form-meta { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.checkbox { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .75rem; cursor: pointer; }
.checkbox input { width: 15px; height: 15px; accent-color: var(--blue); }
.link-inline { color: var(--blue-2); font-size: .75rem; text-decoration: none; }
.link-inline:hover { color: var(--cyan); }

.auth-divider { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: center; color: var(--muted-2); font-size: .68rem; }
.auth-divider::before, .auth-divider::after { content: ""; height: 1px; background: var(--line); }

.oauth-button {
  width: 100%;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255,255,255,.025);
  color: #dbe8f5;
  font-weight: 600;
  cursor: pointer;
  transition: .25s ease;
}
.oauth-button:hover { border-color: var(--line-strong); background: rgba(255,255,255,.045); }
.oauth-g { width: 19px; height: 19px; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(from -45deg, #4285f4 0 25%, #34a853 0 50%, #fbbc05 0 75%, #ea4335 0); color: transparent; }

.auth-alert {
  display: none;
  padding: 12px 14px;
  border: 1px solid rgba(255, 112, 131, .25);
  border-radius: 12px;
  background: rgba(255, 112, 131, .07);
  color: #ffafba;
  font-size: .76rem;
  line-height: 1.5;
}
.auth-alert.show { display: block; animation: auth-form-in .35s var(--ease); }
.auth-alert.success { border-color: rgba(60, 225, 180, .25); background: rgba(60, 225, 180, .07); color: #83efd1; }

.auth-security { display: flex; align-items: center; gap: 9px; margin-top: 24px; color: var(--muted-2); font-size: .68rem; }
.auth-security svg { color: var(--mint); }

.auth-back { position: fixed; left: 22px; top: 20px; z-index: 30; }

@media (max-width: 940px) {
  .page-auth { padding: 18px; align-items: start; }
  .auth-shell { grid-template-columns: 1fr; max-width: 680px; }
  .auth-visual { min-height: 500px; border-right: 0; border-bottom: 1px solid var(--line); }
  .auth-panel { padding: 42px; }
}

@media (max-width: 600px) {
  .page-auth { padding: 0; }
  .auth-shell { min-height: 100svh; border-radius: 0; border-inline: 0; }
  .auth-visual { min-height: 390px; padding: 78px 22px 30px; }
  .auth-manifesto h1 { font-size: 2.65rem; }
  .auth-manifesto p { margin-top: 16px; font-size: .9rem; }
  .auth-systems, .auth-telemetry { display: none; }
  .auth-panel { padding: 34px 22px 48px; }
  .auth-back { position: absolute; top: 15px; right: 15px; left: auto; background: rgba(3, 10, 21, .72); border-color: rgba(100, 195, 255, .18); backdrop-filter: blur(12px); }
}