body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(124,58,237,.18) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 80% 100%, rgba(168,85,247,.1) 0%, transparent 60%);
  pointer-events: none;
}

.auth-wrap { width: 100%; max-width: 420px; position: relative; z-index: 1; }
.auth-logo { text-align: center; margin-bottom: 2rem; }
.auth-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
  box-shadow: 0 8px 32px rgba(124,58,237,.35);
  margin: 0 auto 1rem;
}
.auth-logo-mark svg { width: 26px; height: 26px; color: #fff; }
.auth-logo h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 7vw, 3rem);
  background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: .06em;
  line-height: 1;
}
.auth-logo p { color: var(--text-muted); font-size: .875rem; margin-top: .5rem; }
.auth-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 4px 48px rgba(0,0,0,.4), 0 0 0 1px rgba(139,92,246,.08);
}
.auth-submit { width: 100%; margin-top: 1.5rem; height: 48px; font-size: .95rem; }