.login-page {
  min-height: 100vh;
  background: radial-gradient(circle at 50% 0, #17251f 0, var(--base) 48%);
}
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  width: min(430px, 100%);
  padding: 34px;
  border: 1px solid var(--line);
  background: rgba(21, 26, 24, .97);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .35);
}
.login-mark {
  width: 48px; height: 48px; margin-bottom: 28px;
  display: grid; place-items: center;
  background: var(--green); color: #07140e;
  font: 800 14px/1 ui-monospace, monospace;
}
.login-card h1 { margin-bottom: 14px; font-size: clamp(28px, 7vw, 40px); }
.login-lead { margin-bottom: 26px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.login-error {
  margin-bottom: 18px; padding: 11px 12px;
  border-left: 3px solid var(--danger);
  background: rgba(238, 106, 98, .08); color: #ffaaa5; font-size: 12px;
}
.login-form { display: grid; gap: 18px; }
.login-form label {
  display: grid; gap: 8px; color: var(--muted);
  font: 700 10px/1.2 ui-monospace, monospace;
  letter-spacing: .08em; text-transform: uppercase;
}
.login-form input {
  width: 100%; min-height: 46px; padding: 0 13px;
  border: 1px solid var(--line); border-radius: 0; outline: none;
  background: #090d0b; color: var(--ink); font-size: 16px;
}
.login-form input:focus { border-color: var(--green); box-shadow: 0 0 0 2px rgba(33, 211, 145, .12); }
.login-submit {
  min-height: 46px; border: 0; background: var(--green); color: #07140e;
  cursor: pointer; font: 800 11px/1 ui-monospace, monospace;
  letter-spacing: .1em; text-transform: uppercase;
}
.login-submit:hover { filter: brightness(1.08); }
.login-note { margin: 22px 0 0; color: #66706b; font: 10px/1.4 ui-monospace, monospace; }
@media (max-width: 520px) { .login-card { padding: 26px 22px; } }