/* ── Auth Page ───────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(56, 189, 248, 0.07) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
    var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  animation: authFadeIn 0.5s ease both;
}

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

.auth-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.auth-logo-mark {
  width: 44px; height: 44px;
  background: var(--accent);
  color: #000;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
}

.auth-logo-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.auth-logo-tagline {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 1px;
}

.auth-tabs {
  display: flex;
  gap: 0;
  background: var(--bg-3);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 1.75rem;
}

.auth-tab {
  flex: 1;
  text-align: center;
  padding: 0.5rem;
  border-radius: calc(var(--radius) - 3px);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-2);
  transition: all var(--transition);
}

.auth-tab.active {
  background: var(--bg);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.auth-error {
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: var(--red);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-3);
}