/* App shell: sidebar + main */

.app-shell {
  display: flex;
  height: 100vh;
  overflow: hidden;
  background: var(--color-bg);
}

/* ── Sidebar ──────────────────────────────────────────── */
.sidebar {
  width: 15rem;
  flex-shrink: 0;
  background: var(--color-sidebar);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: width 220ms cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
}
.sidebar[data-collapsed="true"] { width: 3.75rem; }
.sidebar[data-collapsed="true"] .sidebar-label,
.sidebar[data-collapsed="true"] .sidebar-section-header,
.sidebar[data-collapsed="true"] .sidebar-history-item,
.sidebar[data-collapsed="true"] .sidebar-history-group,
.sidebar[data-collapsed="true"] .user-meta,
.sidebar[data-collapsed="true"] .sidebar-section-history { display: none; }
.sidebar[data-collapsed="true"] .sidebar-link {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
}
.sidebar[data-collapsed="true"] .sidebar-add-btn { display: none; }
.sidebar[data-collapsed="true"] .sidebar-brand span { display: none; }

.sidebar-header {
  padding: 0.625rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.25rem;
  flex-shrink: 0;
  gap: 0.5rem;
}
.sidebar-brand {
  display: flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: 0.875rem; color: var(--color-text-primary);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
}
.sidebar-brand .brand-icon { color: var(--color-primary); flex-shrink: 0; }
.sidebar-collapse-btn {
  width: 1.75rem; height: 1.75rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  background: transparent;
  transition: background-color 140ms, color 140ms;
}
.sidebar-collapse-btn:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); }

.sidebar-top-actions {
  display: flex;
  gap: 0.25rem;
  padding: 0 0.5rem 0.75rem;
  flex-shrink: 0;
}
.sidebar[data-collapsed="true"] .sidebar-top-actions {
  flex-direction: column;
  align-items: center;
}
.sidebar-newchat {
  flex: 1;
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: transparent;
  color: var(--color-text-primary);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: background-color 140ms;
  text-decoration: none;
}
.sidebar-newchat:hover { background: var(--color-bg-secondary); }
.sidebar[data-collapsed="true"] .sidebar-newchat {
  flex: initial;
  width: 100%;
  justify-content: center;
  padding: 0.5rem;
}
.sidebar[data-collapsed="true"] .sidebar-newchat span { display: none; }

.sidebar-search-btn {
  width: 2rem; height: 2rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background-color 140ms, color 140ms;
  background: transparent;
  flex-shrink: 0;
}
.sidebar-search-btn:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); }
.sidebar[data-collapsed="true"] .sidebar-search-btn { width: 100%; }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 0;
}

.sidebar-section { display: flex; flex-direction: column; }
.sidebar-section-body { display: flex; flex-direction: column; gap: 0.125rem; margin-bottom: 0.25rem; }

.sidebar-section-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.25rem 0.5rem;
}
.sidebar-section-toggle {
  display: flex; align-items: center; gap: 0.375rem;
  flex: 1; min-width: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 140ms;
  text-align: left;
}
.sidebar-section-toggle:hover { color: var(--color-text-primary); }
.sidebar-section-chevron { display: inline-flex; align-items: center; flex-shrink: 0; }
.sidebar-section-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sidebar-add-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.25rem; height: 1.25rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  background: transparent;
  border: none;
  opacity: 0;
  transition: opacity 140ms, background-color 140ms, color 140ms;
}
.sidebar-section-header:hover .sidebar-add-btn { opacity: 1; }
.sidebar-add-btn:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); opacity: 1; }

.sidebar-link {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background-color 140ms, color 140ms;
  text-decoration: none;
  position: relative;
  background: transparent;
  text-align: left;
  width: 100%;
}
.sidebar-link:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); }
.sidebar-link[data-active="true"] {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-weight: 500;
}
.sidebar-link .sidebar-icon { color: var(--color-text-muted); flex-shrink: 0; }
.sidebar-link[data-active="true"] .sidebar-icon { color: var(--color-primary); }
.sidebar-link .sidebar-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-link-actions {
  display: none;
  gap: 0.125rem;
  flex-shrink: 0;
  align-items: center;
}
.sidebar-link:hover .sidebar-link-actions,
.sidebar-history-item:hover .sidebar-link-actions { display: inline-flex; }

.sidebar-tiny-btn {
  width: 1.25rem; height: 1.25rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  background: transparent;
  transition: background-color 120ms, color 120ms;
}
.sidebar-tiny-btn:hover { background: var(--color-bg-tertiary); color: var(--color-text-primary); }

.sidebar-history-group {
  padding: 0.625rem 0.5rem 0.125rem;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.sidebar-history-item {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color 140ms;
  text-decoration: none;
  position: relative;
  background: transparent;
}
.sidebar-history-item:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); }
.sidebar-history-item[data-active="true"] {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}
.sidebar-history-item .sidebar-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.sidebar-footer {
  margin-top: auto;
  padding: 0.625rem;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
  position: relative;
}
.user-chip {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem;
  width: 100%;
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  transition: background-color 140ms;
  text-align: left;
}
.user-chip:hover { background: var(--color-bg-secondary); }
.user-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.user-name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-plan { font-size: 0.6875rem; color: var(--color-text-muted); }

/* ── Auth-only routes hide sidebar ────────────────────── */
body[data-auth="true"] .sidebar { display: none; }
body[data-auth="true"] .main-header { display: none; }

/* ── Main area ────────────────────────────────────────── */
.main {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.main-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  flex-shrink: 0;
}

.main-content {
  flex: 1;
  overflow-y: auto;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Mobile */
@media (max-width: 767px) {
  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 40;
    width: 17rem;
    box-shadow: var(--shadow-soft);
    transform: translateX(-100%);
    transition: transform 200ms cubic-bezier(0.22, 1, 0.36, 1);
  }
  .sidebar[data-collapsed="false"] { transform: translateX(0); }
  .sidebar[data-collapsed="true"] {
    width: 17rem;
    transform: translateX(-100%);
  }
  .sidebar-backdrop {
    position: fixed; inset: 0;
    background: var(--color-overlay);
    z-index: 39;
  }
  .main-header { display: flex; }
}

/* ── Chat layout ──────────────────────────────────────── */
.chat-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  flex-shrink: 0;
  gap: 0.5rem;
}
.chat-header-left {
  display: flex; align-items: center; gap: 0.25rem;
  min-width: 0;
  flex: 1;
}
.chat-header-back {
  width: 2rem; height: 2rem;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  background: transparent;
  transition: background-color 140ms;
}
.chat-header-back:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); }
.chat-header-chip {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: transparent;
  text-decoration: none;
}
.chat-header-chip:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); }
.chat-header-sep { color: var(--color-text-muted); font-size: 0.75rem; }
.chat-header-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.chat-header-title-btn {
  display: inline-flex; align-items: center; gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-text-primary);
  min-width: 0;
  max-width: 100%;
  transition: background-color 140ms;
}
.chat-header-title-btn:hover { background: var(--color-bg-secondary); }
.chat-header-title-btn svg { color: var(--color-text-muted); flex-shrink: 0; }
.chat-header-actions { display: flex; gap: 0.25rem; align-items: center; flex-shrink: 0; }

.chat-thread {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.chat-thread-inner {
  max-width: 48rem;
  margin: 0 auto;
  width: 100%;
  padding: 1.5rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.chat-greeting {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  text-align: center;
}
.chat-greeting-inner {
  width: 100%;
  max-width: 45rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}
.chat-greeting h1 {
  font-size: 2.6rem;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}
.chat-greeting h1:not(.font-display) {
  font-size: 1.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.chat-greeting-agent-icon {
  width: 3.5rem; height: 3.5rem;
  border-radius: var(--radius-xl);
}
.chat-greeting-agent-icon {
  width: 3.5rem; height: 3.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: inline-flex; align-items: center; justify-content: center;
}
.chat-greeting p {
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
  max-width: 26rem;
}

.chat-mode-toggles {
  display: flex; gap: 0.5rem; flex-wrap: wrap; justify-content: center;
}
.chat-mode-toggle {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 140ms;
}
.chat-mode-toggle:hover { background: var(--color-bg-secondary); }
.chat-mode-toggle[data-active="true"] {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.recent-chats {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.recent-chats h2 {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: 0 0.25rem;
}
.recent-chat-item {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--color-text-primary);
  cursor: pointer;
  background: transparent;
  text-align: left;
  text-decoration: none;
  transition: background-color 140ms;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.recent-chat-item:hover { background: var(--color-bg-secondary); }
.recent-chat-item svg { color: var(--color-text-muted); flex-shrink: 0; }

.message {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  animation: fade-in 240ms cubic-bezier(0.22, 1, 0.36, 1);
}
.message[data-role="user"] { align-items: flex-end; }

.message-bubble {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-width: 80%;
}
.message[data-role="user"] .message-bubble {
  background: var(--color-primary-subtle);
  color: var(--color-text-primary);
}
.message[data-role="assistant"] .message-bubble {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  max-width: 100%;
}
.message[data-role="compare"] .message-bubble {
  background: transparent;
  border: none;
  padding: 0;
  max-width: 100%;
  width: 100%;
}
.message-bubble strong { font-weight: 600; }

.message-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.message-meta-model { color: var(--color-text-secondary); font-weight: 500; }

.message-actions {
  display: flex; align-items: center; gap: 0.125rem;
  padding-left: 0.25rem;
}
.message-attachments {
  display: flex; flex-wrap: wrap; gap: 0.375rem;
  justify-content: flex-end;
}
.attachment-chip {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.25rem 0.5rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  color: var(--color-text-primary);
  max-width: 12rem;
}
.attachment-chip img { width: 1.25rem; height: 1.25rem; border-radius: var(--radius-sm); object-fit: cover; }
.attachment-chip .chip-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.attachment-chip .chip-remove {
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
}
.attachment-chip .chip-remove:hover { color: var(--color-text-primary); }

.thinking {
  display: inline-flex; gap: 0.25rem; align-items: center; padding: 0.25rem 0;
}
.thinking span {
  width: 5px; height: 5px; border-radius: 50%; background: var(--color-text-muted);
  animation: thinking-dot 1.2s ease-in-out infinite;
}
.thinking span:nth-child(2) { animation-delay: 0.15s; }
.thinking span:nth-child(3) { animation-delay: 0.3s; }

.cursor-blink {
  display: inline-block;
  width: 0.5rem;
  height: 1rem;
  background: var(--color-primary);
  vertical-align: middle;
  margin-left: 0.125rem;
  animation: cursor-blink 0.9s steps(2) infinite;
}
@keyframes cursor-blink {
  to { opacity: 0; }
}

/* ── Prompt bar ───────────────────────────────────────── */
.prompt-bar {
  padding: 0.75rem 1rem 1rem;
  flex-shrink: 0;
}
.prompt-bar-inner {
  max-width: 48rem;
  margin: 0 auto;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 0.625rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 180ms, box-shadow 180ms;
}
.prompt-bar-inner:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(var(--color-primary-rgb) / 0.12);
}
.prompt-textarea {
  width: 100%;
  border: none;
  background: transparent;
  resize: none;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text-primary);
  min-height: 1.5rem;
  max-height: 10rem;
  padding: 0.375rem 0.5rem;
  font-family: inherit;
}
.prompt-textarea:focus { outline: none; }
.prompt-textarea::placeholder { color: var(--color-text-muted); }

.prompt-attachments {
  display: flex; flex-wrap: wrap; gap: 0.375rem;
  padding: 0 0.25rem;
}

.prompt-context-chip {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  align-self: flex-start;
}

.prompt-param-chips {
  display: flex; align-items: center; gap: 0.375rem; flex-wrap: wrap;
  padding: 0 0.25rem;
}
.prompt-param-chip {
  display: inline-flex; align-items: center; gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
}
.prompt-param-chip .label { color: var(--color-text-muted); }
.prompt-param-chip .value { color: var(--color-text-primary); }

.prompt-actions {
  display: flex; justify-content: space-between; align-items: center; gap: 0.25rem;
  padding: 0 0.125rem;
}
.prompt-actions-left, .prompt-actions-right {
  display: flex; gap: 0.125rem; align-items: center;
}

.send-btn {
  width: 2rem; height: 2rem;
  background: var(--color-primary);
  color: var(--color-primary-fg);
  border-radius: var(--radius-md);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  border: none;
  transition: background-color 180ms, opacity 180ms;
}
.send-btn:hover:not(:disabled) { background: var(--color-primary-hover); }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.compare-pill {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  background: transparent;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background-color 140ms, color 140ms;
  border: none;
}
.compare-pill:hover { background: var(--color-bg-secondary); color: var(--color-text-primary); }
.compare-pill[data-active="true"] { background: var(--color-primary-subtle); color: var(--color-primary); }

.model-picker-btn {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  font-size: 0.75rem;
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  background: transparent;
  transition: background-color 140ms;
  border: none;
}
.model-picker-btn:hover { background: var(--color-bg-secondary); }

/* ── Settings: row card / icon box / segmented / select ── */
.settings-section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.settings-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.125rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.settings-card-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}
.settings-card-icon {
  width: 2.5rem; height: 2.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}
.settings-card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
}
.settings-card-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

.segmented {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
  padding: 0.25rem;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}
.segmented button {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 140ms, color 140ms, border-color 140ms;
}
.segmented button:hover { color: var(--color-text-secondary); }
.segmented button[data-active="true"] {
  background: var(--color-bg);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.settings-select {
  position: relative;
  flex-shrink: 0;
}
.settings-select select {
  appearance: none;
  -webkit-appearance: none;
  padding: 0.5rem 2.25rem 0.5rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  min-width: 8rem;
  transition: border-color 140ms;
}
.settings-select select:hover { border-color: var(--color-border-accent); }
.settings-select select:focus { outline: none; box-shadow: 0 0 0 3px rgb(var(--color-primary-rgb) / 0.15); border-color: var(--color-primary); }
.settings-select-chevron {
  position: absolute;
  right: 0.625rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--color-text-muted);
}

/* Notification card grouping */
.notif-stack {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.notif-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1rem;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: background-color 140ms;
}
.notif-row:last-child { border-bottom: 0; }
.notif-row:hover { background: var(--color-bg-secondary); }
.notif-row-left {
  display: flex; align-items: center; gap: 0.75rem; min-width: 0;
}
.notif-row-icon {
  width: 2rem; height: 2rem;
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

/* ── Auth ────────────────────────────────────────────── */
.auth-split {
  min-height: 100dvh;
  display: grid;
  background: var(--color-bg);
}
@media (min-width: 1024px) {
  .auth-split { grid-template-columns: 1.05fr 1fr; }
}

/* Brand panel — hidden on mobile, visible lg+ */
.auth-brand-panel {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  padding: 3rem;
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
}
@media (min-width: 1024px) {
  .auth-brand-panel { display: flex; }
}

.auth-brand-logo {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  width: fit-content;
}

.auth-brand-body { max-width: 26rem; }

.auth-brand-title {
  font-size: 2rem;
  line-height: 1.1;
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}

.auth-brand-desc {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* CompareMotif */
.auth-motif {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
.auth-motif-col {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 0.75rem;
  background: var(--color-bg);
  opacity: 0.6;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.auth-motif-col-active {
  border-color: var(--color-border-accent);
  background: var(--color-primary-subtle);
  opacity: 1;
}
.auth-motif-header {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.auth-motif-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-text-muted);
  flex-shrink: 0;
}
.auth-motif-dot-active { background: var(--color-primary); }
.auth-motif-line {
  flex: 1;
  height: 0.375rem;
  border-radius: var(--radius-full);
  background: var(--color-text-muted);
  opacity: 0.25;
}
.auth-motif-bar {
  display: block;
  height: 0.375rem;
  border-radius: var(--radius-full);
  background: var(--color-text-muted);
  opacity: 0.2;
}
.auth-motif-bar-short { width: 66.66%; }

/* Bullet list */
.auth-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.auth-bullet {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}
.auth-bullet-dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

/* Form column */
.auth-form-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 1.5rem;
}
@media (min-width: 640px) {
  .auth-form-col { padding: 3rem 2.5rem; }
}
.auth-form-inner {
  width: 100%;
  max-width: 24rem;
  margin: 0 auto;
}

/* Mobile wordmark — visible below lg */
.auth-mobile-wordmark { margin-bottom: 2rem; }
@media (min-width: 1024px) {
  .auth-mobile-wordmark { display: none; }
}
.auth-mobile-logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
}
.auth-mobile-tagline {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-top: 0.125rem;
}

/* Card, divider, footer — still used inside form column */
.auth-card {
  width: 100%;
  display: flex;
  flex-direction: column;
}
.auth-card h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
}
.auth-card .auth-sub {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}
.auth-divider {
  display: flex; align-items: center; gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  margin: 1.5rem 0;
}
.auth-divider::before, .auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
}
.social-btn {
  width: 100%;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.625rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 140ms;
}
.social-btn:hover { background: var(--color-bg-secondary); }
.auth-footer {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.auth-footer a { color: var(--color-primary); }

/* ── 404 ──────────────────────────────────────────────── */
.notfound {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.75rem; padding: 2rem; text-align: center;
}

/* ── Generic page wrapper ─────────────────────────────── */
.page {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 1rem 3rem;
}
.page-inner {
  max-width: 60rem;
  margin: 0 auto;
  display: flex; flex-direction: column; gap: 1.5rem;
}
.page-inner-narrow { max-width: 42rem; margin: 0 auto; }

.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.page-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.page-header p {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.back-link {
  display: inline-flex; align-items: center; gap: 0.25rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: color 140ms;
  background: transparent;
  width: max-content;
  text-decoration: none;
}
.back-link:hover { color: var(--color-text-primary); }

/* ── Project / Agent grid cards ───────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.875rem;
}

.entity-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  cursor: pointer;
  transition: border-color 140ms, box-shadow 140ms;
  text-decoration: none;
  color: inherit;
}
.entity-card:hover { border-color: var(--color-border-accent); }

.entity-card-header {
  display: flex; align-items: center; gap: 0.625rem;
}
.entity-card-icon {
  width: 2.25rem; height: 2.25rem;
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.entity-card h3 {
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}
.entity-card-body {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.entity-card-footer {
  display: flex; align-items: center; gap: 0.375rem;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
}
.entity-card-actions {
  display: flex; gap: 0.375rem;
  margin-top: auto;
  padding-top: 0.25rem;
}

/* ── Settings layout ──────────────────────────────────── */
.settings-shell {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}
.settings-nav {
  width: 14rem;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  padding: 1rem 0.75rem;
  flex-shrink: 0;
  display: flex; flex-direction: column; gap: 0.125rem;
  overflow-y: auto;
}
.settings-nav h2 {
  font-size: 1rem;
  font-weight: 600;
  padding: 0.25rem 0.5rem 0.5rem;
}
.settings-nav-link {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.625rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  background: transparent;
  text-decoration: none;
  transition: background-color 140ms, color 140ms;
}
.settings-nav-link:hover { background: var(--color-bg); color: var(--color-text-primary); }
.settings-nav-link[data-active="true"] {
  background: var(--color-bg);
  color: var(--color-primary);
  font-weight: 500;
}
.settings-main {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 2rem 3rem;
}
.settings-main-inner {
  max-width: 44rem;
  display: flex; flex-direction: column; gap: 1.5rem;
}
.settings-section {
  display: flex; flex-direction: column; gap: 0.875rem;
}
.settings-section h3 {
  font-size: 0.9375rem;
  font-weight: 600;
}
.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}
.settings-row:last-child { border-bottom: 0; }
.settings-row-label {
  font-size: 0.875rem;
  color: var(--color-text-primary);
  font-weight: 500;
}
.settings-row-help {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

/* Models grid + card */
.models-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .models-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .models-grid { grid-template-columns: repeat(3, 1fr); }
}

.model-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: border-color 140ms, box-shadow 140ms;
}
.model-card[data-locked="false"]:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-soft);
}

.model-upgrade-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  width: max-content;
  transition: color 140ms;
}
.model-upgrade-link:hover { color: var(--color-primary-hover); }
.model-upgrade-link svg { transition: transform 140ms; }
.model-upgrade-link:hover svg { transform: translateX(2px); }

/* Billing features grid */
.billing-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}
@media (min-width: 640px) {
  .billing-features-grid { grid-template-columns: repeat(2, 1fr); }
}

#cancel-plan:hover { color: #ef4444; }

/* Invoice table */
.invoice-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.invoice-table thead {
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}
.invoice-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.invoice-table tbody tr {
  border-bottom: 1px solid var(--color-border);
  transition: background-color 140ms;
}
.invoice-table tbody tr:last-child { border-bottom: 0; }
.invoice-table tbody tr:hover { background: var(--color-bg-secondary); }
.invoice-table td {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
}
.invoice-status {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}
.invoice-status-paid {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  border: 1px solid var(--color-border-accent);
}
.invoice-status-waived {
  background: var(--color-bg-secondary);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

@media (max-width: 639px) {
  .invoice-table .hide-sm { display: none; }
}
@media (max-width: 767px) {
  .invoice-table .hide-md { display: none; }
}

/* Privacy group: rounded bordered container with row dividers */
.privacy-group {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.privacy-group > div + div {
  border-top: 1px solid var(--color-border);
}
.privacy-group > div:hover { background: var(--color-bg-secondary); }

@media (max-width: 767px) {
  .settings-shell { flex-direction: column; }
  .settings-nav { width: 100%; border-right: 0; border-bottom: 1px solid var(--color-border); flex-direction: row; flex-wrap: wrap; }
  .settings-main { padding: 1rem; }
}

/* ── FAQs ─────────────────────────────────────────────── */
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-question {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem 0;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  font-weight: 500;
  cursor: pointer;
  background: transparent;
  text-align: left;
  border: none;
}
.faq-answer {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding: 0 0 1rem;
  display: none;
}
.faq-item[data-open="true"] .faq-answer { display: block; }
.faq-item[data-open="true"] .faq-chevron { transform: rotate(180deg); }

/* ── Logo mode switching ──────────────────────────────────── */
html[data-mode="dark"] .logo-for-light { display: none; }
html[data-mode="light"] .logo-for-dark { display: none; }
.sidebar-logo { height: 1.5rem; width: auto; display: block; }
.auth-logo { height: 1.75rem; width: auto; display: block; }
.header-logo { height: 1.25rem; width: auto; display: block; }
.faq-chevron { transition: transform 200ms; flex-shrink: 0; color: var(--color-text-muted); }