:root {
  --login-bg: #07070a;
  --login-panel: rgba(17, 17, 24, 0.92);
  --login-border: #2a2a38;
  --login-purple: #7c3aed;
  --login-purple-hover: #6d28d9;
  --login-purple-glow: rgba(124, 58, 237, 0.35);
  --login-red: #dc2626;
  --login-red-hover: #ef4444;
  --login-text: #f4f4f5;
  --login-muted: #9ca3af;
  --login-dim: #6b7280;
}

html,
body.login-body {
  min-height: 100%;
  margin: 0;
  background: radial-gradient(ellipse 120% 80% at 50% -20%, #1a1033 0%, var(--login-bg) 55%);
  color: var(--login-text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.login-body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 15% 85%, rgba(124, 58, 237, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(220, 38, 38, 0.06) 0%, transparent 40%);
  pointer-events: none;
}

.login-shell {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--login-panel);
  border: 1px solid var(--login-border);
  border-radius: 16px;
  padding: 36px 32px 32px;
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  backdrop-filter: blur(12px);
}

.login-brand {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  margin: 0 auto;
  display: block;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.login-title {
  margin: 16px 0 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--login-text);
}

.login-subtitle {
  margin: 6px 0 0;
  font-size: 0.8rem;
  color: var(--login-muted);
}

.login-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 24px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--login-border);
  border-radius: 10px;
}

.login-tab {
  flex: 1;
  display: block;
  padding: 9px 12px;
  border-radius: 7px;
  font-size: 0.8125rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  color: var(--login-muted);
  transition: background 0.15s, color 0.15s;
}

.login-tab:hover {
  color: var(--login-text);
}

.login-tab.active {
  background: rgba(124, 58, 237, 0.2);
  color: var(--login-text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.login-alert {
  margin-bottom: 18px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.8125rem;
  line-height: 1.45;
  border: 1px solid rgba(239, 68, 68, 0.35);
  background: rgba(239, 68, 68, 0.1);
  color: #fecaca;
}

.login-alert-warn {
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
  color: #fde68a;
}

.login-field {
  margin-bottom: 16px;
}

.login-field label {
  display: block;
  margin-bottom: 5px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--login-muted);
}

.login-field input {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  border: 1px solid var(--login-border);
  border-radius: 8px;
  background: #0a0a0f;
  font-size: 0.875rem;
  color: var(--login-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

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

.login-field input:focus {
  outline: none;
  border-color: var(--login-purple);
  box-shadow: 0 0 0 3px var(--login-purple-glow);
}

.login-field input.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.login-hint {
  margin: 5px 0 0;
  font-size: 0.7rem;
  color: var(--login-dim);
  line-height: 1.4;
}

.login-submit {
  width: 100%;
  margin-top: 8px;
  padding: 11px 16px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--login-purple) 0%, #5b21b6 100%);
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  box-shadow:
    0 0 0 1px rgba(167, 139, 250, 0.45),
    0 0 18px rgba(124, 58, 237, 0.55),
    0 0 32px rgba(124, 58, 237, 0.25),
    0 4px 14px rgba(124, 58, 237, 0.4);
}

.login-submit:hover {
  background: linear-gradient(135deg, var(--login-purple-hover) 0%, #4c1d95 100%);
  box-shadow:
    0 0 0 1px rgba(196, 181, 253, 0.55),
    0 0 22px rgba(124, 58, 237, 0.65),
    0 0 40px rgba(124, 58, 237, 0.35),
    0 6px 20px rgba(124, 58, 237, 0.5);
}

.login-submit:active {
  transform: translateY(1px);
}

.login-link {
  color: #a78bfa;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.login-link:hover {
  color: #c4b5fd;
}

.login-code {
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.4);
  font-family: ui-monospace, monospace;
  font-size: 0.8em;
}

.login-notice {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: #fde68a;
}

@media (max-width: 480px) {
  .login-card {
    padding: 28px 22px 24px;
  }
}