.auth {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
}
.auth::before, .auth::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.auth::before {
  width: 500px; height: 500px;
  background: var(--accent);
  top: -200px; right: -100px;
  opacity: 0.25;
}
.auth::after {
  width: 400px; height: 400px;
  background: var(--accent);
  bottom: -150px; left: -100px;
  opacity: 0.15;
}

.auth__brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 60px;
  position: relative;
  z-index: 1;
}
.auth__logo {
  width: 180px;
  margin-bottom: 32px;
  filter: drop-shadow(0 20px 30px rgba(5, 8, 26, 0.3));
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.auth__title {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 12px;
  line-height: 1;
}
.auth__tagline {
  font-size: 17px;
  color: var(--text-muted);
  text-align: center;
  max-width: 380px;
  margin-bottom: 40px;
}
.auth__features {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.auth__feature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.auth__feature-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.auth__panel {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
  position: relative;
  z-index: 1;
}
.auth__card {
  width: 100%;
  max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}
.auth__card-header {
  text-align: center;
  margin-bottom: 32px;
}
.auth__card-logo {
  width: 64px;
  margin: 0 auto 16px;
}
.auth__card-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.auth__card-subtitle {
  font-size: 14px;
  color: var(--text-muted);
}
.auth__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin: 24px 0;
  font-weight: 600;
}
.auth__divider::before, .auth__divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.auth__terms {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  text-align: center;
}

@media (max-width: 900px) {
  .auth { grid-template-columns: 1fr; }
  .auth__brand { padding: 40px 24px 20px; }
  .auth__logo { width: 120px; margin-bottom: 20px; }
  .auth__title { font-size: 40px; }
  .auth__tagline { font-size: 15px; margin-bottom: 24px; }
  .auth__features { display: none; }
  .auth__panel { padding: 20px 24px 60px; }
  .auth__card { padding: 32px 24px; }
}