/* ==========================================================================
   Authentication Foundation (v0.65)
   ========================================================================== */

/* Topbar trigger button */
.auth-controls {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.auth-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  padding: 0 11px;
  border-radius: 10px;
  font-size: 0.82rem;
  font-weight: 760;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  white-space: nowrap;
}

.auth-button:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
}

.auth-button.logged-in {
  border-color: rgba(232, 197, 106, 0.4);
  background: rgba(232, 197, 106, 0.08);
}

.auth-user-badge {
  display: inline-flex;
  align-items: center;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* User Popover Menu */
.auth-user-popover {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 240px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-user-popover-info {
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.auth-popover-username {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
}

.auth-popover-role {
  font-size: 0.75rem;
  color: var(--muted, #94a3b8);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.auth-popover-profiles {
  font-size: 0.8rem;
  color: var(--text);
}

.auth-logout-button {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: rgba(251, 113, 133, 0.15);
  border: 1px solid rgba(251, 113, 133, 0.4);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.auth-logout-button:hover {
  background: rgba(251, 113, 133, 0.3);
}

/* Login Modal */
.login-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 12, 0.75);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease-in-out;
}

.login-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.login-modal {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  padding: 24px;
  transform: translateY(12px) scale(0.98);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.login-modal-backdrop.open .login-modal {
  transform: translateY(0) scale(1);
}

.login-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.login-modal-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
}

.login-modal-tabs {
  display: flex;
  gap: 4px;
  background: var(--panel2);
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.login-tab-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.login-tab-btn.active {
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.login-tab-btn:hover:not(.active) {
  color: var(--text);
}

.login-remember-field {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 4px 0 10px;
  font-size: 0.82rem;
  color: var(--muted);
  cursor: pointer;
}

.login-remember-field input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--accent);
}

.login-modal-close {
  background: none;
  border: none;
  color: var(--muted, #94a3b8);
  font-size: 1.5rem;
  line-height: 1;
  padding: 4px 8px;
  cursor: pointer;
  border-radius: 4px;
  transition: color 0.15s ease;
}

.login-modal-close:hover {
  color: var(--text);
}

.login-modal-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}

.login-input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s ease;
}

.login-input:focus {
  border-color: var(--accent);
}

.login-modal-error {
  padding: 10px 12px;
  background: rgba(251, 113, 133, 0.12);
  border: 1px solid rgba(251, 113, 133, 0.35);
  border-radius: 8px;
  color: var(--danger, #fb7185);
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.4;
}

.login-modal-submit {
  width: 100%;
  padding: 11px 16px;
  margin-top: 4px;
  background: var(--accent);
  color: #080c12;
  font-weight: 750;
  font-size: 0.9rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.login-modal-submit:hover:not(:disabled) {
  opacity: 0.92;
}

.login-modal-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.login-modal-footer {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.login-register-teaser {
  font-size: 0.8rem;
  color: var(--muted, #94a3b8);
}

/* ==========================================================================
   Public Profile Presentation & Migration Banner (v0.65B)
   ========================================================================== */

.presentation-migration-banner {
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 12px;
  margin: 12px auto 16px;
  max-width: 1280px;
  padding: 14px 18px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.presentation-migration-content {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.presentation-migration-icon {
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.presentation-migration-text {
  flex: 1 1 300px;
}

.presentation-migration-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}

.presentation-migration-desc {
  font-size: 0.82rem;
  color: var(--muted, #94a3b8);
  line-height: 1.4;
}

.presentation-migration-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.btn-migration-apply {
  padding: 7px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  background: var(--accent);
  color: #080c12;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.btn-migration-apply:hover {
  opacity: 0.9;
}

.btn-migration-dismiss {
  padding: 7px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  background: transparent;
  color: var(--muted, #94a3b8);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-migration-dismiss:hover {
  color: var(--text);
  border-color: var(--muted, #94a3b8);
}

.presentation-owner-notice {
  padding: 10px 14px;
  margin-bottom: 14px;
  border-radius: 8px;
  background: var(--panel2);
  border: 1px solid var(--line);
}

.presentation-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
}

.presentation-badge.owner {
  color: var(--accent);
}

.presentation-badge.visitor {
  color: var(--muted, #94a3b8);
}

.presentation-sub {
  font-size: 0.76rem;
  color: var(--muted, #94a3b8);
  margin-top: 3px;
}

/* User Popover & Password Modal Additions (v0.65B-2) */
.auth-popover-link,
.auth-popover-link-btn {
  display: block;
  width: 100%;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 6px;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.auth-popover-link:hover,
.auth-popover-link-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.auth-change-password-button {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.auth-change-password-button:hover {
  border-color: var(--accent);
}

.password-forced-banner {
  padding: 10px 12px;
  background: rgba(232, 197, 106, 0.12);
  border: 1px solid rgba(232, 197, 106, 0.35);
  border-radius: 8px;
  color: var(--accent, #e8c56a);
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 8px;
}

.password-modal-logout-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--muted, #94a3b8);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
}

.password-modal-logout-link:hover {
  color: var(--danger, #fb7185);
}

/* Demo Sandbox Banner */
.demo-sandbox-banner {
  background: rgba(232, 197, 106, 0.08);
  border: 1px solid rgba(232, 197, 106, 0.25);
  border-radius: 10px;
  padding: 10px 16px;
  margin: 12px 0 16px;
}

.demo-sandbox-content {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
}

.demo-sandbox-badge {
  font-weight: 700;
  color: var(--accent);
}

.demo-sandbox-text {
  color: var(--text);
  flex: 1;
}

.demo-sandbox-exit {
  color: var(--accent);
  text-decoration: underline;
  font-weight: 600;
  white-space: nowrap;
}

.demo-sandbox-exit:hover {
  opacity: 0.85;
}