/* Red Space Music — Auth pages */
.auth-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 24px;
}

.auth-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
}

.auth-bg::before, .auth-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(20px);
}

.auth-bg::before {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(109, 93, 252, 0.25), transparent 70%);
  top: -200px;
  left: -150px;
  animation: drift1 18s ease-in-out infinite;
}

.auth-bg::after {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(61, 123, 255, 0.2), transparent 70%);
  bottom: -180px;
  right: -120px;
  animation: drift2 22s ease-in-out infinite;
}

@keyframes drift1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(60px, 40px); }
}

@keyframes drift2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-50px, -30px); }
}

.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  background: rgba(11, 11, 20, 0.7);
  border: 1px solid var(--line);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  animation: cardIn 0.7s var(--ease) both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 28px;
}

.auth-card h1 {
  font-size: 24px;
  text-align: center;
  margin-bottom: 8px;
}

.auth-sub {
  text-align: center;
  color: var(--ink-dim);
  font-size: 14px;
  margin-bottom: 32px;
}

.auth-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.remember-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--ink-dim);
  cursor: pointer;
}

.remember-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--signal);
}

.auth-link {
  font-size: 13.5px;
  color: var(--ion);
  transition: opacity 0.25s var(--ease);
}

.auth-link:hover { opacity: 0.8; }

.auth-footer-note {
  text-align: center;
  margin-top: 28px;
  font-size: 13.5px;
  color: var(--ink-faint);
}

.auth-error {
  background: rgba(255, 93, 108, 0.1);
  border: 1px solid rgba(255, 93, 108, 0.25);
  color: var(--danger);
  font-size: 13.5px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 22px;
}

.auth-success {
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.25);
  color: var(--success);
  font-size: 13.5px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 22px;
}

.back-home {
  position: fixed;
  top: 28px;
  left: 28px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--ink-dim);
}

.back-home:hover { color: var(--ink); }
.back-home svg { width: 16px; height: 16px; }