/* Auth Pages - KrishEducation v2.0 */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 20px; position: relative; overflow: hidden;
  background: var(--bg-primary);
  background-image: var(--gradient-mesh);
}
.auth-page::before {
  content: ''; position: absolute; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.08), transparent 70%);
  top: -200px; right: -200px; animation: float 8s ease-in-out infinite;
}
.auth-page::after {
  content: ''; position: absolute; width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(139,92,246,0.06), transparent 70%);
  bottom: -100px; left: -100px; animation: float 6s ease-in-out infinite reverse;
}
.auth-container {
  position: relative; z-index: 1; width: 100%; max-width: 440px;
  animation: scaleIn 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
.auth-logo { text-align: center; margin-bottom: 28px; animation: fadeInDown 0.5s ease-out; }
.auth-logo h1 {
  font-size: 1.8rem; font-weight: 900;
  background: var(--gradient-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.auth-logo p { color: var(--text-muted); font-size: 0.88rem; margin-top: 4px; }
.auth-card {
  background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-xl);
  padding: 32px; backdrop-filter: blur(20px); box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease-out 0.1s both; position: relative; overflow: hidden;
}
.auth-card::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,0.04), transparent);
  pointer-events: none;
}
.auth-card h2 { font-size: 1.5rem; font-weight: 800; }
.auth-card .subtitle { color: var(--text-muted); font-size: 0.9rem; margin: 4px 0 24px; }
.auth-divider {
  text-align: center; color: var(--text-muted); font-size: 0.85rem; margin: 20px 0;
  position: relative;
}
.auth-divider::before, .auth-divider::after {
  content: ''; position: absolute; top: 50%; width: 40%;
  height: 1px; background: var(--border-color);
}
.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }
.auth-footer { text-align: center; color: var(--text-muted); font-size: 0.9rem; }
.auth-tabs { display: flex; gap: 8px; }
.auth-tab {
  flex: 1; padding: 14px; border-radius: var(--radius-md); border: 1px solid var(--border-color);
  background: var(--bg-input); cursor: pointer; color: var(--text-secondary); font-weight: 600;
  font-family: inherit; font-size: 0.88rem; transition: all var(--transition-spring);
}
.auth-tab.active {
  background: var(--gradient-blue); color: #fff; border-color: transparent;
  box-shadow: 0 4px 15px rgba(59,130,246,0.35); transform: scale(1.02);
}
.auth-tab:not(.active):hover { border-color: var(--accent-blue); background: rgba(59,130,246,0.05); }
.step-indicators { display: flex; gap: 8px; justify-content: center; margin-bottom: 24px; }
.step-dot {
  width: 10px; height: 10px; border-radius: 50%; background: var(--border-color);
  transition: all var(--transition-spring);
}
.step-dot.active {
  width: 32px; border-radius: 5px; background: var(--gradient-blue);
  box-shadow: 0 0 12px rgba(59,130,246,0.4);
}
.step-dot.done { background: var(--accent-emerald); box-shadow: 0 0 8px rgba(16,185,129,0.3); }
.signup-step { display: none; animation: fadeInUp 0.4s ease-out; }
.signup-step.active { display: block; }