/* ── Top Nav ── */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition), border-color var(--transition);
}

.top-nav.nav--transparent {
  background: transparent;
  border-bottom-color: transparent;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
}

.nav--transparent .nav-logo {
  color: var(--color-text-inverse);
}

.nav-logo-text {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Full-width nav on all pages */
.nav-inner {
  max-width: none;
  padding: 0 24px;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.9rem;
}

.nav--transparent .btn-primary {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.nav--transparent .btn-primary:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ── Connection Indicator ── */
.connection-indicator-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.connection-version {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  opacity: 0.5;
}

.nav--transparent .connection-version {
  color: rgba(255, 255, 255, 0.4);
}

.connection-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.05);
}

.nav--transparent .connection-indicator {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
}

.connection-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.connection-dot--connected {
  background: var(--color-success);
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
}

.connection-dot--connecting {
  background: var(--color-warning);
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.5);
  animation: pulse 1.5s ease-in-out infinite;
}

.connection-dot--disconnected {
  background: var(--color-error);
  box-shadow: 0 0 6px rgba(239, 68, 68, 0.5);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Route Indicator ── */
.route-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.05);
  user-select: none;
}

.nav--transparent .route-indicator {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
}

.route-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.route-dot--idle {
  background: #888;
}

.route-dot--routing {
  background: var(--color-warning);
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.5);
  animation: pulse 1.5s ease-in-out infinite;
}

.route-dot--success {
  background: var(--color-success);
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
}

.route-dot--error {
  background: var(--color-error);
  box-shadow: 0 0 6px rgba(239, 68, 68, 0.5);
}

/* ── Avatar Menu ── */
.avatar-menu {
  position: relative;
}

.avatar-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition);
  padding: 0;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
}

.avatar-btn:hover {
  border-color: var(--color-primary);
}

.avatar-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  display: none;
  z-index: 200;
}

.avatar-dropdown.open {
  display: block;
  animation: dropdownIn 0.15s ease;
}

@keyframes dropdownIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.avatar-dropdown-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.avatar-dropdown-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}

.avatar-dropdown-email {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.avatar-dropdown-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: background var(--transition);
  cursor: pointer;
  border: none;
  background: none;
}

.avatar-dropdown-item:hover {
  background: var(--color-surface-alt);
}

.avatar-dropdown-item--danger {
  color: var(--color-error);
}

/* ── Avatar Submenu ── */
.avatar-dropdown-submenu {
  position: relative;
}

.avatar-dropdown-submenu-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.avatar-submenu-arrow {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.avatar-submenu {
  display: none;
  position: absolute;
  right: 100%;
  top: 0;
  min-width: 200px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  z-index: 210;
}

.avatar-dropdown-submenu:hover > .avatar-submenu {
  display: block;
  animation: dropdownIn 0.15s ease;
}

/* ── Avatar Toggle Item ── */
.avatar-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.avatar-dropdown-toggle input[type="checkbox"] {
  margin: 0;
  cursor: pointer;
}

/* ── Deep Thought Overlay ── */
.deep-thought-overlay {
  position: absolute;
  top: 36px;
  left: 172px;
  height: 84px;
  display: flex;
  align-items: center;
  z-index: 10;
  pointer-events: none;
}

.deep-thought-ai-icon {
  position: absolute;
  top: 36px;
  left: 80px;
  width: 84px;
  height: 84px;
  color: #fff;
  opacity: 0.35;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
  z-index: 11;
}

.deep-thought-ai-icon svg {
  width: 100%;
  height: 100%;
}

.deep-thought-ai-pulse {
  opacity: 1;
  animation: deep-thought-pulse 2s ease-in-out infinite;
}

@keyframes deep-thought-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.deep-thought-overlay span {
  color: #fff;
  font-family: var(--font-mono, monospace);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

/* ── Auth Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(1px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: overlayIn 0.2s ease;
}

@keyframes overlayIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
  padding: 40px 36px;
  position: relative;
  animation: modalIn 0.25s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.modal-close:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
}

.modal h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.modal .modal-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 28px;
  font-size: 0.95rem;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

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

.auth-social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  transition: all var(--transition);
  background: var(--color-surface);
  cursor: pointer;
}

.auth-social-btn:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-text-muted);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: border-color var(--transition);
  outline: none;
  color: var(--color-text);
}

.form-group input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-error {
  color: var(--color-error);
  font-size: 0.85rem;
  min-height: 1.2em;
}

.modal-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.modal-footer a {
  font-weight: 600;
}

/* ── Cookie Consent Banner ── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 14px 24px;
  background: var(--color-hero-bg);
  color: var(--color-text-inverse);
  font-size: 0.875rem;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.15);
}

.cookie-banner p {
  margin: 0;
}

.cookie-banner a {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* ── About Popup ── */
.about-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-popup {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 380px;
  max-width: 90vw;
  padding: 24px;
}

.about-popup-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.about-popup-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.about-popup-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.about-popup-close {
  margin-left: auto;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.about-popup-close:hover {
  color: var(--color-text);
}

.about-popup-body {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 16px;
}

.about-popup-body p {
  margin: 0;
}

.about-popup-links {
  display: flex;
  gap: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  margin-bottom: 12px;
}

.about-popup-links a {
  font-size: 0.8125rem;
  color: var(--color-primary);
  text-decoration: none;
}

.about-popup-links a:hover {
  text-decoration: underline;
}

.about-popup-footer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ── Shortcuts Popup ── */
.shortcuts-list {
  font-size: 0.8125rem;
}

.shortcuts-section {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin: 14px 0 6px;
}

.shortcuts-section:first-child {
  margin-top: 0;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
}

.shortcut-desc {
  color: var(--color-text);
}

.shortcut-row kbd {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 2px 8px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ── Legal Pages ── */
.legal-page {
  min-height: 100vh;
  background: var(--color-surface);
}

.legal-back {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.875rem;
}

.legal-back:hover {
  text-decoration: underline;
}

.legal-content {
  line-height: 1.7;
  color: var(--color-text);
  font-size: 0.9375rem;
}

.legal-content h3 {
  margin: 24px 0 8px;
  font-size: 1rem;
  font-weight: 600;
}

.legal-content p {
  margin: 0 0 12px;
}

.legal-content ul {
  margin: 0 0 12px;
  padding-left: 20px;
}

.legal-content li {
  margin-bottom: 4px;
}