/* ========================================
   Authentication Pages Styles
   ======================================== */

.auth-body { background: #F8FAFC; min-height: 100vh; }

.auth-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

/* Left Panel */
.auth-left {
  background: linear-gradient(145deg, #0F172A 0%, #1E293B 60%, #0F172A 100%);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.auth-left::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,70,229,0.2), transparent);
}
.auth-left::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.15), transparent);
}
.auth-left-content { position: relative; z-index: 1; }
.auth-back { color: rgba(255,255,255,0.45); font-size: 13px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; margin-bottom: 48px; transition: color 0.2s; font-weight: 500; }
.auth-back:hover { color: rgba(255,255,255,0.8); }
.auth-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 48px; }
.auth-logo-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; }
.student-gradient { background: linear-gradient(135deg, #06B6D4, #3B82F6); }
.teacher-gradient { background: linear-gradient(135deg, #4F46E5, #7C3AED); }
.admin-gradient { background: linear-gradient(135deg, #F59E0B, #EF4444); }
.auth-app-name { font-size: 1.1rem; font-weight: 800; color: white; }
.auth-portal-name { font-size: 12px; color: rgba(255,255,255,0.4); font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }
.auth-headline { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: white; line-height: 1.3; margin-bottom: 16px; letter-spacing: -0.5px; }
.auth-desc { color: rgba(255,255,255,0.5); font-size: 14px; line-height: 1.7; margin-bottom: 40px; }
.auth-features { display: flex; flex-direction: column; gap: 14px; }
.auth-feature { display: flex; align-items: center; gap: 12px; font-size: 14px; color: rgba(255,255,255,0.7); font-weight: 500; }
.auth-feature span { font-size: 1.1rem; }
.auth-left-footer { position: relative; z-index: 1; }
.auth-security-badges { display: flex; gap: 12px; flex-wrap: wrap; }
.auth-security-badges span { font-size: 12px; color: rgba(255,255,255,0.35); font-weight: 500; }

/* Right Panel */
.auth-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  background: #F8FAFC;
}
.auth-form-wrapper { width: 100%; max-width: 440px; }

/* Auth Card */
.auth-card {
  background: white;
  border-radius: 24px;
  padding: 36px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06), 0 1px 6px rgba(0,0,0,0.04);
  border: 1px solid #E2E8F0;
  margin-bottom: 16px;
}
.auth-card-header { margin-bottom: 24px; }
.auth-card-header h1 { font-size: 1.5rem; font-weight: 800; color: #1E293B; margin-bottom: 6px; }
.auth-card-header p { font-size: 14px; color: #64748B; }

/* Role reminder */
.role-reminder {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  margin-bottom: 4px;
  font-size: 13px;
}
.student-reminder { background: rgba(6,182,212,0.07); border: 1px solid rgba(6,182,212,0.2); color: #0E7490; }
.teacher-reminder { background: rgba(79,70,229,0.07); border: 1px solid rgba(79,70,229,0.2); color: #4338CA; }
.admin-reminder { background: rgba(245,158,11,0.07); border: 1px solid rgba(245,158,11,0.2); color: #B45309; }
.reminder-icon { font-size: 1.4rem; }
.role-reminder strong { display: block; font-weight: 700; margin-bottom: 3px; }
.role-reminder p { font-size: 12px; color: inherit; opacity: 0.8; margin: 0; }

/* Loading state */
.auth-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px;
  color: #64748B;
  font-size: 14px;
  font-weight: 500;
}

/* Divider */
.auth-divider {
  text-align: center;
  position: relative;
  margin: 20px 0;
  font-size: 12px;
  color: #94A3B8;
  font-weight: 500;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(50% - 80px);
  height: 1px;
  background: #E2E8F0;
}
.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }

/* Auth steps preview */
.auth-steps-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 16px;
  background: #F8FAFC;
  border-radius: 12px;
  margin-bottom: 16px;
}
.auth-step-item { display: flex; flex-direction: column; align-items: center; gap: 6px; flex: 1; }
.step-dot {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: #E2E8F0;
  color: #94A3B8;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-step-item.active .step-dot { background: #4F46E5; color: white; }
.auth-step-item span { font-size: 10px; color: #94A3B8; font-weight: 600; text-align: center; }
.step-connector { flex: 1; height: 2px; background: #E2E8F0; max-width: 40px; }

/* Notice Box */
.auth-notice-box {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 14px;
  background: #F8FAFC;
  border-radius: 10px;
  font-size: 12px;
  color: #64748B;
  line-height: 1.5;
  border: 1px solid #E2E8F0;
}

/* Error/Unauthorized */
.auth-error-state, .auth-success-state {
  text-align: center;
  padding: 16px 0;
}
.error-icon { font-size: 4rem; margin-bottom: 16px; }
.auth-error-state h2 { color: #EF4444; font-size: 1.3rem; margin-bottom: 12px; }
.auth-error-state p { font-size: 14px; color: #64748B; line-height: 1.6; margin-bottom: 20px; }
.error-details { background: #FEF2F2; border: 1px solid #FECACA; border-radius: 8px; padding: 10px 14px; font-size: 12px; color: #991B1B; font-family: monospace; margin-bottom: 20px; }
.auth-success-state h2 { color: #10B981; font-size: 1.3rem; margin-bottom: 8px; }
.auth-success-state p { font-size: 14px; color: #64748B; }

/* Footer text */
.auth-footer-text { text-align: center; font-size: 13px; color: #94A3B8; }
.auth-footer-text a { color: #4F46E5; font-weight: 600; }

/* Password field with toggle (for admin) */
.input-group { position: relative; }
.input-group .form-control { padding-right: 44px; }
.input-toggle { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; color: #94A3B8; font-size: 1rem; }

/* Admin specific */
.admin-pin-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 20px 0; }
.pin-btn {
  aspect-ratio: 1;
  border: 1.5px solid #E2E8F0;
  border-radius: 12px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #1E293B;
  background: white;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
}
.pin-btn:hover { background: #F1F5F9; border-color: #4F46E5; }
.pin-btn:active { background: #4F46E5; color: white; transform: scale(0.95); }
.pin-display { display: flex; gap: 12px; justify-content: center; margin: 16px 0; }
.pin-dot { width: 14px; height: 14px; border-radius: 50%; border: 2px solid #E2E8F0; transition: all 0.2s; }
.pin-dot.filled { background: #4F46E5; border-color: #4F46E5; }

/* Responsive */
@media (max-width: 900px) {
  .auth-page { grid-template-columns: 1fr; }
  .auth-left { display: none; }
  .auth-right { padding: 24px 16px; min-height: 100vh; align-items: flex-start; padding-top: 40px; }
}