/* ============================================
   Login / Register Page Styles
   ============================================ */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: var(--space-6);
}

.login-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  animation: meshMove 20s ease-in-out infinite;
  pointer-events: none;
}

/* ── Auth Container ── */
.auth-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 480px;
}

.auth-card {
  background: var(--color-surface);
  backdrop-filter: blur(var(--glass-blur-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-2xl);
  animation: scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  text-decoration: none;
}

.auth-logo .logo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 22px;
  font-weight: var(--weight-extrabold);
}

.auth-logo .logo-text {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  color: var(--color-text);
}

.auth-title {
  text-align: center;
  font-size: var(--text-h2);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.auth-subtitle {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-8);
}

/* ── Auth Forms ── */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.auth-form .form-group {
  gap: var(--space-2);
}

.auth-form .form-input {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
}

.auth-form .btn-submit {
  width: 100%;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-body);
  margin-top: var(--space-2);
}

/* ── Password Strength ── */
.password-strength {
  display: flex;
  gap: var(--space-1);
  margin-top: var(--space-1);
}

.password-strength .strength-bar {
  flex: 1;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--color-glass);
  transition: background var(--transition-fast);
}

.password-strength .strength-bar.active.weak { background: var(--color-danger); }
.password-strength .strength-bar.active.medium { background: var(--color-warning); }
.password-strength .strength-bar.active.strong { background: var(--color-success); }

/* ── Auth Divider ── */
.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.auth-divider span {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  white-space: nowrap;
}

/* ── Auth Switch ── */
.auth-switch {
  text-align: center;
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.auth-switch a {
  color: var(--color-accent);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  text-decoration: none;
}

.auth-switch a:hover {
  text-decoration: underline;
}

/* ── Form Panels ── */
.auth-panel {
  display: none;
}

.auth-panel.active {
  display: block;
  animation: fadeInUp 0.4s ease-out;
}

/* ── Role Select ── */
.role-select {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.role-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.role-option:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-50);
}

.role-option.selected {
  border-color: var(--color-accent);
  background: var(--color-accent-50);
  color: var(--color-accent);
  font-weight: var(--weight-semibold);
}

.role-option input[type="radio"] {
  display: none;
}

.role-option .role-check {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.role-option.selected .role-check {
  border-color: var(--color-accent);
  background: var(--color-accent);
}

.role-option.selected .role-check::after {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: white;
}

/* ── Auth Message ── */
.auth-message {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  display: none;
  align-items: center;
  gap: var(--space-2);
  animation: fadeInUp 0.3s ease-out;
}

.auth-message.show {
  display: flex;
}

.auth-message.success {
  background: var(--color-success-50);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.auth-message.error {
  background: var(--color-danger-50);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

/* ── Back to Landing ── */
.back-to-landing {
  position: fixed;
  top: var(--space-6);
  left: var(--space-6);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.back-to-landing:hover {
  color: var(--color-white);
}

/* ── Responsive ── */
@media (max-width: 767px) {
  .auth-card {
    padding: var(--space-6);
    border-radius: var(--radius-xl);
  }

  .auth-title {
    font-size: var(--text-h3);
  }

  .role-select {
    grid-template-columns: 1fr;
  }

  .back-to-landing {
    top: var(--space-4);
    left: var(--space-4);
  }
}