/* /code page shell — workspace rail, thread sidebar, topbar, pickers.
 * The thread itself (transcript, composer) lives in code-transcript.css,
 * a port of assistant-ui's Thread element (docs/adr/0004). */

.code-shell {
  /* Shared surface tokens (assistant-ui surfaces.tsx → tokens.css) */
  --code-muted: color-mix(in oklch, var(--color-ink) 7%, transparent);
  --code-muted-strong: color-mix(in oklch, var(--color-ink) 10%, transparent);
  --code-hairline: color-mix(in oklch, var(--color-ink) 12%, transparent);
  --code-live: var(--color-focus);
  --aui-ease: cubic-bezier(0.32, 0.72, 0, 1);
  --aui-dur: 200ms;

  display: grid;
  grid-template-columns: 44px 240px 1fr;
  height: 100%;
  width: 100%;
  overflow: hidden;
  min-height: 0;
}

@media (prefers-color-scheme: light) {
  .code-shell {
    --code-muted: color-mix(in oklch, var(--color-ink) 5%, transparent);
    --code-muted-strong: color-mix(in oklch, var(--color-ink) 8%, transparent);
  }
}

.code-workspace-rail {
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 10px 6px;
  background: var(--color-bg);
  min-height: 0;
}
.code-workspace-chip,
.code-workspace-add {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-2);
  color: var(--color-ink);
  font: 700 12px/1 var(--font-sans);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.code-workspace-chip.is-active {
  border-color: var(--color-accent, #00b14f);
  box-shadow: 0 0 0 1px var(--color-accent, #00b14f);
}
.code-workspace-chip:hover,
.code-workspace-add:hover {
  background: var(--color-bg-3);
}
.code-workspace-add {
  color: var(--color-ink-2);
  font-size: 18px;
  line-height: 1;
}

.code-workspace-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border: none;
  border-bottom: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  color: var(--color-ink);
}
.code-workspace-head:hover { background: var(--color-bg-3); }
.code-workspace-name {
  font: 600 13px/1.3 var(--font-sans);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.code-workspace-path {
  font: 400 11px/1.3 var(--font-mono, monospace);
  color: var(--color-ink-2);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.code-project-overlay {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.code-project-dialog {
  width: min(520px, 100%);
  max-height: min(70vh, 640px);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}
.code-project-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 8px;
}
.code-project-title {
  font: 600 14px/1.2 var(--font-sans);
}
.code-project-close {
  border: none;
  background: transparent;
  color: var(--color-ink-2);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.code-project-close:hover { background: var(--color-bg-3); color: var(--color-ink); }
.code-project-search {
  margin: 0 16px 10px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-2);
  color: var(--color-ink);
  font: 400 13px/1.4 var(--font-sans);
}
.code-project-browse-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px 8px;
  font-size: 11px;
  color: var(--color-ink-2);
}
.code-project-up {
  border: none;
  background: transparent;
  color: var(--color-ink-2);
  cursor: pointer;
  padding: 0;
  font-size: 11px;
}
.code-project-up:hover { color: var(--color-ink); }
.code-project-current {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.code-project-section-label {
  padding: 8px 16px 6px;
  font: 600 10px/1 var(--font-sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-2);
  list-style: none;
}
.code-project-hint {
  margin: 0 16px 8px;
  font-size: 12px;
  color: var(--color-ink-2);
}
.code-project-hint code {
  font-family: var(--font-mono, monospace);
  color: var(--color-ink);
}

.code-workspace-menu {
  position: fixed;
  z-index: 130;
  min-width: 140px;
  padding: 4px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.code-workspace-menu-item {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  color: var(--color-ink);
  font: 400 13px/1.4 var(--font-sans);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.code-workspace-menu-item:hover {
  background: var(--color-bg-3);
}
.code-workspace-menu-item.is-danger {
  color: #f55538;
}
.code-project-list {
  list-style: none;
  margin: 0;
  padding: 0 8px 12px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}
.code-project-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}
.code-project-item.is-highlight,
.code-project-item.is-active.is-highlight {
  background: var(--color-bg-3);
}
.code-project-item.is-active .code-project-item-name {
  color: var(--color-accent, #00b14f);
}
.code-project-folder { font-size: 14px; opacity: 0.85; }
.code-project-item-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.code-project-item-name {
  font: 600 13px/1.3 var(--font-sans);
}
.code-project-item-path {
  font: 400 11px/1.3 var(--font-mono, monospace);
  color: var(--color-ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.code-project-empty {
  padding: 16px;
  text-align: center;
  color: var(--color-ink-2);
  font-size: 12px;
}

.code-threads {
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--color-bg);
  overflow: hidden;
}
.code-threads-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  gap: 2px;
  padding: 8px 8px 0;
}
.code-threads-toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
}
.code-threads-new {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--color-ink);
  font: 400 13px/1 var(--font-sans);
  text-align: left;
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}
.code-threads-new:hover { background: var(--code-muted); }
.code-threads-new > svg { flex-shrink: 0; }
.code-threads-refresh { width: 28px; height: 28px; }

.code-threads-search {
  position: relative;
  padding: 4px 2px;
}
.code-threads-search > svg {
  position: absolute;
  left: 12px;
  top: 50%;
  translate: 0 -50%;
  color: var(--color-ink-3);
  pointer-events: none;
}
.code-threads-search > input {
  width: 100%;
  height: 32px;
  padding: 0 10px 0 32px;
  border: 1px solid var(--code-hairline);
  border-radius: 6px;
  background: var(--color-bg-2);
  color: var(--color-ink);
  font: 400 13px/1 var(--font-sans);
  outline: none;
  transition: border-color var(--dur) var(--ease);
}
.code-threads-search > input::placeholder { color: var(--color-ink-4); }
.code-threads-search > input:focus { border-color: var(--color-ink-4); }
.code-threads-search > input::-webkit-search-cancel-button { -webkit-appearance: none; }

.code-threads-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-2) transparent;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-bottom: 8px;
}
.code-threads-group { display: flex; flex-direction: column; gap: 2px; }
.code-threads-group-label {
  padding: 12px 10px 4px;
  font: 500 11px/1 var(--font-sans);
  color: var(--color-ink-3);
}
.code-threads-group:first-child .code-threads-group-label { padding-top: 6px; }
.code-threads-empty {
  padding: 16px 10px;
  color: var(--color-ink-3);
  font-size: 13px;
}

/* One thread row (assistant-ui ThreadListItem): h-8, rounded, hover bg */
.code-thread {
  position: relative;
  display: flex;
  align-items: center;
  height: 32px;
  border-radius: 6px;
  transition: background var(--dur) var(--ease);
}
.code-thread:hover,
.code-thread.is-active,
.code-thread:focus-within { background: var(--code-muted); }
.code-thread-trigger {
  flex: 1;
  min-width: 0;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--color-ink);
  font: 400 13px/1 var(--font-sans);
  text-align: left;
  cursor: pointer;
  outline: none;
}
.code-thread-trigger:focus-visible {
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--color-ink) 20%, transparent);
}
.code-thread:hover .code-thread-trigger,
.code-thread.is-active .code-thread-trigger,
.code-thread:focus-within .code-thread-trigger { padding-right: 36px; }
.code-thread-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.code-thread-running {
  display: inline-grid;
  place-items: center;
  color: var(--color-ink-3);
  flex-shrink: 0;
}
.code-thread-running > svg { animation: aui-spin 1s linear infinite; }

/* Status dot: needs-input (pulsing, focus hue), done (green), error (red) */
.code-thread-badge {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--color-ink-3);
}
.code-thread-badge.is-needs-input {
  background: var(--code-live);
  animation: code-pulse 1.2s var(--ease) infinite;
}
.code-thread-badge.is-done { background: oklch(72% 0.16 145); }
.code-thread-badge.is-error { background: var(--color-error); }
@media (prefers-reduced-motion: reduce) {
  .code-thread-badge.is-needs-input,
  .code-thread-running > svg { animation: none; }
}

/* Backend indicator on each thread row */
.code-thread-backend {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  font: 700 9px/1 var(--font-sans);
  flex-shrink: 0;
  letter-spacing: 0;
}
.code-thread-backend.is-opencode {
  background: oklch(92% 0.04 145);
  color: oklch(35% 0.1 145);
}
.code-thread-backend.is-claude {
  background: oklch(92% 0.05 55);
  color: oklch(40% 0.12 55);
}
.code-thread-backend.is-grok {
  background: oklch(92% 0.06 280);
  color: oklch(38% 0.14 280);
}

.code-thread-more {
  position: absolute;
  right: 6px;
  top: 50%;
  translate: 0 -50%;
  width: 24px;
  height: 24px;
  opacity: 0;
}
.code-thread:hover .code-thread-more,
.code-thread.is-active .code-thread-more,
.code-thread:focus-within .code-thread-more { opacity: 1; }

.code-thread-rename-input {
  flex: 1;
  min-width: 0;
  height: 28px;
  margin: 0 2px;
  padding: 0 8px;
  border: 1px solid var(--code-hairline);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-ink);
  font: 400 13px/1 var(--font-sans);
  outline: none;
}
.code-thread-rename-input:focus { border-color: var(--color-ink-4); }

.code-container {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-width: 0;
  width: 100%;
  overflow: hidden;
  background: var(--color-bg);
}

#code-root { display: contents; }

/* ─── Topbar ──────────────────────────────────────────────────────────── */

.code-topbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 44px;
  padding: var(--space-2) var(--page-gutter);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.code-topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}
.code-title {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  margin: 0;
  line-height: 1;
}
.code-topbar-right {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  flex-shrink: 0;
}
.code-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 28px;
  padding: 0 10px;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-ink-3);
  border-radius: 999px;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.code-link:hover {
  background: var(--code-muted);
  color: var(--color-ink);
}

@keyframes code-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.code-spinner {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--color-border-2);
  border-top-color: var(--color-ink);
  display: inline-block;
  animation: code-spin 700ms linear infinite;
}
@keyframes code-spin { to { transform: rotate(360deg); } }

/* ─── Composer rail controls (backend · model · effort) ───────────────── */

.code-backend-toggle {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 2px;
  border-radius: 999px;
  background: var(--code-muted);
  flex-shrink: 0;
}
.code-backend-btn {
  height: 24px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--color-ink-3);
  font: 500 11.5px/1 var(--font-sans);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.code-backend-btn:hover { color: var(--color-ink); }
.code-backend-btn.is-active {
  background: var(--color-bg);
  color: var(--color-ink);
  box-shadow: 0 1px 2px oklch(0% 0 0 / 0.18);
}
.code-model-ac {
  position: relative;
  flex: 1 1 160px;
  min-width: 120px;
  max-width: 320px;
}
.code-model-input {
  width: 100%;
  height: 28px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--color-ink-2);
  font: 400 12.5px/1 var(--font-mono);
  letter-spacing: -0.01em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.code-model-input::placeholder { color: var(--color-ink-4); }
.code-model-input:hover { background: var(--code-muted); }
.code-model-input:focus {
  outline: none;
  background: var(--code-muted);
  color: var(--color-ink);
}
.code-model-ac-list {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  z-index: 50;
  min-width: 100%;
  width: max-content;
  max-width: min(360px, 80vw);
  margin: 0;
  padding: 6px;
  list-style: none;
  background: var(--color-bg);
  border: 1px solid var(--code-hairline);
  border-radius: 16px;
  max-height: 240px;
  overflow-y: auto;
  box-shadow: 0 8px 24px oklch(0% 0 0 / 0.25);
  animation: code-fade-in 120ms var(--ease) both;
}
.code-model-ac-item {
  padding: 7px 10px;
  font: 400 12.5px/1.3 var(--font-mono);
  color: var(--color-ink);
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.code-model-ac-item.is-highlight { background: var(--code-muted); }
.code-model-ac-item.is-selected { color: var(--color-ink); font-weight: 500; }

.code-variant-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--color-ink-3);
  font: 400 12.5px/1 var(--font-sans);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.code-variant-btn:hover { background: var(--code-muted); color: var(--color-ink); }
.code-variant-key { color: var(--color-ink-4); }
.code-variant-value {
  font: 500 12px/1 var(--font-mono);
  color: var(--color-ink-2);
  text-transform: lowercase;
}
.code-variant-btn > svg { opacity: 0.6; }

.code-variant-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh var(--space-3) var(--space-3);
  background: rgba(0, 0, 0, 0.55);
}
.code-variant-dialog {
  width: min(420px, 100%);
  background: var(--color-bg-2);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}
.code-variant-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-3) var(--space-2);
}
.code-variant-title {
  font: 500 var(--text-sm) var(--font-sans);
  color: var(--color-ink);
}
.code-variant-hint {
  font: 400 11px/1 var(--font-mono);
  color: var(--color-ink-3);
  text-transform: lowercase;
}
.code-variant-search {
  display: block;
  width: calc(100% - var(--space-3) * 2);
  margin: 0 var(--space-3) var(--space-2);
  background: transparent;
  color: var(--color-ink);
  border: none;
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2) 0;
  font: 400 var(--text-sm) var(--font-mono);
  outline: none;
}
.code-variant-search::placeholder { color: var(--color-ink-3); }
.code-variant-list {
  list-style: none;
  margin: 0;
  padding: var(--space-1) 0 var(--space-2);
  max-height: 280px;
  overflow-y: auto;
}
.code-variant-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font: 400 var(--text-sm) var(--font-mono);
  color: var(--color-ink);
  cursor: pointer;
  user-select: none;
  text-transform: lowercase;
}
.code-variant-item.is-highlight,
.code-variant-item.is-selected.is-highlight {
  background: color-mix(in oklch, var(--color-ink) 8%, var(--color-bg-2));
}
.code-variant-item.is-selected .code-variant-dot {
  background: var(--color-ink);
  box-shadow: 0 0 0 2px var(--color-bg-2);
}
.code-variant-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--color-ink-3);
  flex: 0 0 auto;
}
.code-variant-empty {
  padding: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-ink-3);
  text-align: center;
}

.code-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-3);
  background: transparent;
  border: 1px solid color-mix(in oklch, var(--color-ink) 12%, transparent);
  border-radius: 999px;
  white-space: nowrap;
}
.code-pill.is-live {
  color: var(--color-ink-2);
  border-color: color-mix(in oklch, var(--color-ink) 16%, transparent);
  background: transparent;
}
.code-pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-ink-3);
  display: inline-block;
}
.code-pill.is-live .code-pill-dot {
  background: oklch(72% 0.16 145);
  animation: code-pulse 1.4s var(--ease) infinite;
}
@keyframes code-pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.85); }
  50%      { opacity: 1;   transform: scale(1.1); }
}

.code-status {
  flex: 1;
  min-width: 0;
  font: 400 11px/1 var(--font-mono);
  letter-spacing: -0.01em;
  color: var(--color-ink-4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Backdrop for mobile thread drawer */
.code-threads-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  background: oklch(0% 0 0 / 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms var(--ease);
}

@media (max-width: 720px) {
  .code-shell { grid-template-columns: 1fr; }
  .code-workspace-rail { display: none; }

  .code-topbar {
    min-height: 40px;
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
  }
  .code-topbar-right { display: none; }

  .code-threads {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 220ms var(--ease);
    box-shadow: 4px 0 24px oklch(0% 0 0 / 0.3);
  }
  .code-threads.is-open { transform: translateX(0); }

  .code-threads-backdrop.is-open {
    display: block;
    opacity: 1;
    pointer-events: auto;
  }
  /* Touch has no hover: keep the rename affordance visible. */
  .code-thread-more { opacity: 1; }
  .code-thread-trigger { padding-right: 36px; }

  /* Composer rail wraps: [attach · backend · effort] / [model] */
  .code-model-ac {
    flex: 1 1 100%;
    max-width: none;
    order: 10;
  }
  .code-backend-btn { padding: 0 8px; font-size: 11px; }
  .code-variant-key { display: none; }
}

/* ─── Image lightbox ──────────────────────────────────────────────────── */

.code-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  background: oklch(0% 0 0 / 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: var(--space-4);
  animation: code-fade-in 160ms var(--ease) both;
  cursor: zoom-out;
}
.code-lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-md);
  object-fit: contain;
  box-shadow: 0 8px 40px oklch(0% 0 0 / 0.5);
}
.code-lightbox-close {
  position: fixed;
  top: 20px;
  right: 20px;
  background: oklch(20% 0 0 / 0.8);
  border: 1px solid var(--color-border);
  color: #fff;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.code-lightbox-close:hover { background: oklch(30% 0 0 / 0.9); }

/* make message images clickable */
.code-msg-image { cursor: zoom-in; }

/* ─── Password gate modal ─────────────────────────────────────────────── */

.code-gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: oklch(10% 0 0 / 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--space-4);
  animation: code-fade-in 200ms var(--ease) both;
}
@media (prefers-color-scheme: light) {
  .code-gate { background: oklch(96% 0 0 / 0.6); }
}

.code-gate-card {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-6) var(--space-6);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px oklch(0% 0 0 / 0.35);
  animation: code-gate-pop 220ms var(--ease) both;
}
.code-gate-loading {
  padding: var(--space-6);
  min-height: 80px;
  justify-content: center;
}
@keyframes code-gate-pop {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0)   scale(1); }
}

.code-gate-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.code-gate-title {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-ink);
  margin: 0;
  letter-spacing: -0.01em;
}
.code-gate-sub {
  font-size: var(--text-sm);
  color: var(--color-ink-3);
  text-align: center;
  margin: 0 0 var(--space-2);
}

.code-gate-input {
  width: 100%;
  background: var(--color-bg-2);
  color: var(--color-ink);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  font: 400 var(--text-sm) var(--font-sans);
  text-align: center;
  letter-spacing: 0.05em;
  transition: border-color var(--dur) var(--ease);
}
.code-gate-input:focus {
  outline: none;
  border-color: var(--color-ink-3);
}
.code-gate-input:disabled { opacity: 0.6; }

.code-gate-err {
  width: 100%;
  font-size: var(--text-xs);
  color: var(--color-error);
  text-align: center;
  padding: 4px 0;
}

.code-gate-submit {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font: 500 var(--text-sm) var(--font-sans);
  color: var(--color-bg);
  background: var(--color-ink);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.code-gate-submit:hover:not(:disabled) {
  background: var(--color-ink-2);
  border-color: var(--color-ink-2);
}
.code-gate-submit:disabled {
  background: var(--color-bg-3);
  color: var(--color-ink-4);
  border-color: var(--color-border);
  cursor: not-allowed;
}