/* Login screen (uses the colors from theme.css). */
.login {
  height: 100%;
  height: 100dvh;
  display: grid;
  place-items: center;
  padding: calc(20px + env(safe-area-inset-top)) 20px calc(20px + env(safe-area-inset-bottom));
}

.login-card {
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 30px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--glow);
  backdrop-filter: blur(8px);
}

.login-card .reactor { width: 56px; height: 56px; margin: 0 auto 6px; }

.login-card h1 {
  margin: 0;
  text-align: center;
  font: 700 1.25rem/1.1 var(--mono);
  letter-spacing: 0.3em;
  color: var(--blue);
  text-shadow: 0 0 12px rgba(46, 200, 255, 0.55);
}

.login-sub {
  margin: 0;
  text-align: center;
  color: var(--muted);
  font: 500 0.68rem/1.4 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.field {
  min-height: 48px;
  padding: 0 18px;
  background: var(--panel-solid);
  border: 1px solid var(--line);
  border-radius: 24px;
  outline: none;
}
.field:focus { border-color: var(--line-strong); box-shadow: var(--glow); }

.login-button {
  min-height: 48px;
  border: 0;
  border-radius: 24px;
  color: #021018;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue));
  box-shadow: var(--glow);
  font: 700 0.82rem/1 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
}
.login-button:disabled { opacity: 0.5; cursor: default; }

.login-error {
  margin: 0;
  text-align: center;
  color: var(--danger);
  font-size: 0.9rem;
}