/* 访问密码遮罩。 */
/* ===== 访问密码遮罩 ===== */
.gate {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg-primary);
}
.gate-card {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 28px 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.gate-brand { font-family: var(--font-display); font-size: 24px; color: var(--text-primary); }
.gate-hint { font-size: 14px; color: var(--text-muted); margin-top: -6px; }
.gate-input {
  width: 100%;
  padding: 11px 15px;
  font-size: 16px;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  outline: none;
  text-align: center;
}
.gate-btn {
  width: 100%;
  padding: 11px;
  font-size: 15px;
  color: #fff;
  background: var(--btn-primary-bg);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.gate-err { font-size: 13px; color: #9a3412; min-height: 16px; }

@media (min-width: 700px) {
  .topbar-actions {
    gap: 2px;
  }
  .topbar-actions .icon-button {
    width: 44px;
    height: 44px;
  }
  .topbar-actions .icon-button::after { inset: 0; }
  .settings-nav-row {
    min-height: 72px;
    padding-top: 13px;
    padding-bottom: 13px;
  }
  .effort-options {
    padding: 3px;
    border-radius: 13px;
  }
  .effort-option {
    min-height: 48px;
    border-radius: 10px;
    font-size: 14px;
  }
  .effort-option::after { inset: 0; }
  .message-tools {
    min-height: 40px;
    font-size: 12px;
  }
  .message-copy,
  .message-edit,
  .message-reroll,
  .message-edit-action {
    min-height: 40px;
    padding-inline: 6px;
  }
  .message-copy::after,
  .message-edit::after,
  .message-reroll::after,
  .message-edit-action::after { inset: -2px 0; }
  .identity-field { padding: 17px; }
  .identity-input {
    min-height: 48px;
    padding: 11px 13px;
  }
  .max-token-controls {
    padding: 2px;
    border-radius: 13px;
  }
  #max-completion-tokens {
    width: 120px;
    min-height: 48px;
    padding: 10px;
    border-radius: 11px 0 0 11px;
    font-size: 15px;
  }
  .token-step {
    width: 48px;
    height: 48px;
  }
  .token-step::before {
    top: 9px;
    bottom: 9px;
  }
  .token-step::after { inset: 0; }
  .token-step:last-child { border-radius: 0 11px 11px 0; }
  .token-step svg {
    width: 17px;
    height: 17px;
  }
}

@media (min-width: 900px) {
  .conversation-sidebar {
    position: relative;
    inset: auto;
    z-index: 5;
    flex: none;
    width: 0;
    height: 100%;
    border-right-color: transparent;
    box-shadow: none;
    visibility: visible;
    pointer-events: none;
    transform: none;
    -webkit-backface-visibility: visible;
    backface-visibility: visible;
    will-change: auto;
    transition: none;
  }
  .conversation-sidebar-inner {
    width: 288px;
    opacity: 0;
    transform: translateX(-18px);
    transition:
      opacity var(--motion-fast) ease,
      transform var(--motion-panel) var(--ease-out);
  }
  .app-shell.sidebar-is-open .conversation-sidebar {
    width: 288px;
    border-right-color: rgba(31,30,29,.13);
    pointer-events: auto;
    transform: none;
  }
  .app-shell.sidebar-is-open .conversation-sidebar-inner {
    opacity: 1;
    transform: translateX(0);
  }
  .conversation-title { font-size: 15px; }
  .conversation-meta { font-size: 12px; }
  .conversation-time { font-size: 11px; }
  .conversation-scrim { display: none; }
}

@media (hover: hover) and (pointer: fine) {
  .conversation-sidebar-action:hover:not(:disabled),
  .conversation-more:hover:not(:disabled),
  .conversation-menu-button:hover:not(:disabled),
  .conversation-rename-action:hover:not(:disabled),
  .conversation-select:hover:not(:disabled),
  .model-quick:hover,
  .icon-button:hover,
  .settings-back:hover,
  .settings-nav-row:hover,
  .model-star:hover,
  .models-retry:hover,
  .token-step:hover,
  .message-copy:hover,
  .message-edit:hover,
  .message-reroll:hover,
  .message-edit-action:hover { background: rgba(31,30,29,.055); }
  #send:hover:not(:disabled) { opacity: .85; transform: translateY(-1px); }
  .model-choice:hover { background: rgba(31,30,29,.035); }
  .model-choice.active:hover { background: rgba(217,119,87,.095); }
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible {
  outline: 2px solid rgba(217,119,87,.65);
  outline-offset: 2px;
}
/* 手指/鼠标在用时不画焦点框（iOS 对脚本 focus() 会当成键盘操作画框）；按过 Tab 之后才画 */
html[data-input="pointer"] button:focus-visible,
html[data-input="pointer"] [role="button"]:focus-visible { outline: none; }

@media (prefers-reduced-motion: reduce) {
  .conversation-sidebar,
  .conversation-sidebar-inner,
  .conversation-scrim,
  .chat-shell,
  .app-status {
    transition: opacity var(--motion-fast) ease, visibility 0s linear var(--motion-fast);
  }
  .app-status,
  .app-status.is-visible { transform: translate(-50%, 0); }
  .conversation-sidebar {
    transform: none;
    opacity: 0;
  }
  .app-shell.sidebar-is-open .conversation-sidebar {
    opacity: 1;
    transform: none;
  }
  .conversation-sidebar-inner { transform: none; }
  .conversation-sidebar-action:active,
  .conversation-more:active,
  .conversation-menu-button:active,
  .conversation-rename-action:active {
    transform: none;
  }
  .model-quick svg,
  .reasoning-chevron,
  .citations-chevron {
    transition: none;
  }
  .reasoning-mark,
  .msg.typing::after {
    animation: none;
  }
  .settings-screen {
    transform: none;
    transition: opacity var(--motion-fast) ease, visibility 0s linear var(--motion-fast);
  }
  .settings-screen.is-open { transform: none; }
  .quick-panel {
    transform: translateX(-50%);
    transition: opacity var(--motion-fast) ease, visibility 0s linear var(--motion-fast);
  }
  .quick-panel.is-open { transform: translateX(-50%); }
  .models-scroll-top,
  .models-scroll-top.is-visible {
    transform: translate(-50%, 0);
    transition: opacity var(--motion-fast) ease, visibility 0s linear var(--motion-fast);
  }
  .settings-back:active,
  .settings-nav-row:active,
  .model-star:active,
  .models-retry:active,
  .token-step:active,
  .message-copy:active,
  .message-edit:active,
  .message-reroll:active,
  .message-edit-action:active,
  .icon-button:active,
  .settings-save:active { transform: none; }
  .models-scroll-top.is-visible:active { transform: translate(-50%, 0); }
  :root { scroll-behavior: auto; }
}

@media (prefers-reduced-transparency: reduce) {
  .models-scroll-top {
    background: var(--bg-card);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}