:root {
  color-scheme: dark;
  --bg: #0c0e10;
  --bg-elevated: #15181c;
  --surface: #1c2025;
  --surface-soft: #15181c;
  --ink: #edf0f3;
  --muted: #a4adb8;
  --muted-2: #929ba6;
  --line: #30363d;
  --line-strong: #59636f;
  --accent: #176cce;
  --accent-hover: #2079df;
  --accent-soft: #192c43;
  --accent-ink: #ffffff;
  --ok: #86dba6;
  --ok-soft: #182c23;
  --warn: #edc479;
  --warn-soft: #302719;
  --terminal: #101214;
  --terminal-ink: #e9e9ed;
  --shadow-sm: none;
  --shadow-md: none;
  --focus-ring: 0 0 0 3px #488bcc;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
select,
input,
textarea {
  color: var(--ink);
}

.topbar,
.layout {
  width: min(1200px, calc(100vw - 40px));
  margin: 0 auto;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(0, 1.4fr) auto;
  align-items: center;
  gap: 16px;
  padding: 24px 0 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: 21px;
  line-height: 1.12;
  font-weight: 760;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.top-meta,
.top-actions,
.toolbar,
.action-strip,
.send-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.top-meta {
  display: grid;
  justify-content: start;
  justify-items: start;
  gap: 4px;
  min-width: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
  text-align: left;
}

.top-meta > span:first-child { white-space: nowrap; font-size: 12px; }

.is-next-step:not(:disabled) {
  animation: next-step-pulse 800ms ease-in-out 3;
}

@keyframes next-step-pulse {
  0%, 100% { box-shadow: 0 0 0 0 transparent; }
  50% { box-shadow: 0 0 0 3px #87bfff; }
}

@media (prefers-reduced-motion: reduce) {
  .is-next-step:not(:disabled) { animation: none; outline: 2px solid #87bfff; outline-offset: 3px; }
}

.top-meta span:last-child {
  color: var(--ink);
  white-space: nowrap;
}

.top-actions {
  justify-content: flex-end;
}

.language-select { width: 128px; flex: 0 0 128px; font-size: 13px; padding-right: 8px; }
.sim-language-note { margin: -8px 0 16px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.localized-file-input { position: absolute; width: 1px !important; height: 1px !important; clip-path: inset(50%); overflow: hidden; opacity: 0; pointer-events: none; }
.file-choice-row { display: flex; align-items: center; gap: 8px; min-width: 0; height: 40px; }
.file-choose { flex-shrink: 0; }
.file-choice-row .file-selection { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 400; min-width: 0; }

.top-meta .top-version { font-size: 12px; white-space: nowrap; }
.top-meta .hosting-note { color: var(--muted); }
#sourceRepoLink { height: 38px; flex: 0 0 38px; }
.source-plus { display: block; width: 20px; height: 20px; background: currentColor; mask: url('./assets/icons/plus.svg') center / contain no-repeat; }

.status-pill {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 12px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.status-pill.is-ok {
  background: var(--ok-soft);
  color: var(--ok);
}

.status-pill.is-warn {
  background: var(--warn-soft);
  color: var(--warn);
}

.layout {
  margin-bottom: 24px;
}

.workspace {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow-md);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  padding: 8px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-elevated);
}

.tab {
  height: 38px;
  min-width: 0;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, box-shadow .16s ease;
}

.tab:hover {
  background: var(--surface);
  color: var(--ink);
}

.tab.is-active {
  border-color: #3e668e;
  background: var(--accent-soft);
  box-shadow: var(--shadow-sm);
  color: var(--ink);
}

.tab-panel {
  display: none;
  padding: 16px;
}

.tab-panel.is-active {
  display: block;
}

.screen-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.simulator-heading, .sim-section-title { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.simulator-heading h2 { margin: 0; font-size: 18px; line-height: 1.25; font-weight: 760; }
.sim-section-title h3 { margin: 0; font-size: 15px; line-height: 1.4; font-weight: 700; }
.simulator-heading p, .sim-build, .sim-status, .sim-section-title span { color: var(--muted); font-size: 12px; line-height: 1.5; }
.simulator-heading p { margin: 8px 0; }
.sim-build { margin: 8px 0 16px; padding-bottom: 16px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.simulator-actions { display: flex; align-items: center; gap: 12px; }
.simulator-actions > * { flex-shrink: 0; }
#simPortalToggle { width: 140px; }
#simPortalToggle[aria-pressed="true"] { background: var(--accent-soft); border-color: #3e668e; }
.simulator-layout { width: 100%; }
.virtual-portal { max-width: 640px; margin: 0 auto; }
.device-workspace { display: grid; grid-template-columns: minmax(0, 440px) minmax(280px, 1fr); gap: 32px; align-items: center; }
.device-display, .device-settings { min-width: 0; }
.device-settings { padding-left: 24px; border-left: 1px solid var(--line); }
.device-settings .sim-status { margin: 0 0 16px; min-height: 18px; }
.device-settings .form-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
.device-settings .action-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
.device-settings .action-strip button { min-width: 0; white-space: normal; line-height: 1.4; padding: 8px 12px; }
.simulator-layout > [hidden] { display: none; }
.virtual-device, .virtual-portal { min-width: 0; }
.device-keys { display: grid; grid-template-columns: 96px minmax(0, 1fr) 96px; align-items: center; gap: 8px; max-width: 440px; margin: 16px auto 8px; }
.device-keys button { min-width: 96px; touch-action: none; user-select: none; }
.device-key-help { min-width: 0; text-align: center; }
.device-key-help p { margin: 0; color: var(--muted); font-size: 12px; line-height: 18px; overflow-wrap: anywhere; }
#simulatorCanvas { display: block; width: 100%; max-width: 440px; height: auto; aspect-ratio: 4/3; background: #edf0f3; image-rendering: pixelated; margin: 0 auto; border: 8px solid #30363d; border-radius: 8px; }
#portalSimulator { width: 100%; height: 660px; border: 1px solid var(--line); border-radius: 6px; margin-top: 16px; background: #f5f5f7; }
.screen-snapshots { margin-top: 24px; border-top: 1px solid var(--line); padding-top: 16px; }
.screen-snapshots summary { cursor: pointer; margin-bottom: 16px; }
.virtual-device:focus-visible { outline: 2px solid #87bfff; outline-offset: 4px; }
.screen-gallery figure { margin: 0; min-width: 0; }
.screen-gallery figcaption { margin-bottom: 12px; font-size: 16px; font-weight: 650; }
.screen-gallery img { display: block; width: 100%; max-width: 400px; height: auto; aspect-ratio: 4 / 3; object-fit: contain; background: white; border: 1px solid var(--line); border-radius: 8px; }

.work-summary {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1fr) auto;
  gap: 12px;
  margin-bottom: 14px;
  align-items: stretch;
}

.summary-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  min-width: 0;
}

.work-summary .summary-specs > div,
.metrics div,
.flash-table div,
.checklist label {
  border: 0;
  border-radius: 8px;
  padding: 11px 12px;
  background: var(--surface-soft);
  box-shadow: var(--shadow-sm);
}

.work-summary span,
.metrics span,
label span,
.select-field span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
}

.work-summary strong,
.metrics strong {
  display: block;
  margin-top: 4px;
  overflow-wrap: anywhere;
  font-weight: 760;
}

.summary-note {
  white-space: pre-line;
  min-width: 0;
  margin: 0;
  align-self: center;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.asset-ready-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding: 12px;
  border: 1px solid var(--ok);
  border-radius: 8px;
  background: var(--ok-soft);
  color: var(--ok);
}

.asset-ready-notice[hidden] { display: none; }
.asset-ready-notice p { margin: 0; line-height: 1.5; overflow-wrap: anywhere; }
.asset-ready-notice button { flex-shrink: 0; }
.writer-locked-notice { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; padding: 12px 14px; border-left: 3px solid var(--warn); background: var(--warn-soft); color: var(--warn); }
.writer-locked-notice[hidden] { display: none; }
.writer-locked-notice strong { display: block; color: var(--ink); }
.writer-locked-notice p { margin: 4px 0 0; line-height: 1.5; overflow-wrap: anywhere; }
.writer-locked-notice button { flex-shrink: 0; }

.summary-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  border: 0 !important;
  background: transparent !important;
  padding: 0 !important;
}

.select-field {
  display: flex;
  align-items: center;
  gap: 8px;
}

select,
input,
textarea {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  outline: none;
  transition: border-color .16s ease, box-shadow .16s ease, background-color .16s ease;
}

select {
  height: 38px;
  padding: 0 34px 0 11px;
  max-width: 100%;
  appearance: auto;
  text-overflow: ellipsis;
}

input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
}

textarea {
  width: 100%;
  min-height: 210px;
  margin-top: 12px;
  padding: 12px;
  resize: vertical;
  line-height: 1.5;
}

select:hover,
input:hover,
textarea:hover {
  border-color: var(--line-strong);
}

select:focus,
input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
  background: var(--surface);
}

button,
.link-button,
.download-button {
  min-height: 38px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 730;
  white-space: nowrap;
  transition: background-color .16s ease, border-color .16s ease, box-shadow .16s ease;
}

button:hover,
.link-button:hover,
.download-button:hover {
  transform: none;
}

button:active,
.link-button:active,
.download-button:active {
  transform: translateY(0);
}

.primary-button,
.download-button {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: none;
}

.primary-button:hover,
.download-button:hover {
  background: var(--accent-hover);
}

.secondary-button,
.link-button,
.icon-button {
  border-color: var(--line);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

.secondary-button:hover,
.link-button:hover,
.icon-button:hover {
  background: #262c33;
  border-color: var(--line-strong);
}

.icon-button {
  width: 38px;
  padding: 0;
  font-size: 22px;
  line-height: 1;
}

button:disabled,
.is-disabled {
  opacity: .42;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.terminal {
  height: 330px;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 8px;
  background: var(--terminal);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05);
  color: var(--terminal-ink);
  padding: 13px;
  overflow: auto;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
}

.send-row {
  margin-top: 10px;
}

.send-row input {
  flex: 1 1 260px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.preview-grid {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 14px;
}

.preview-controls,
.manifest-field,
.form-grid label,
.mini-settings label,
.file-picker,
.image-side-panel label,
.settings-card label {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.file-picker input {
  height: auto;
  min-height: 40px;
  padding: 8px;
}

input[type="range"] {
  height: 28px;
  padding: 0;
  accent-color: var(--accent);
}

.check-row {
  display: flex !important;
  align-items: center;
  gap: 10px !important;
  min-height: 34px;
  color: var(--ink);
  font-weight: 680;
}

.check-row input,
.checklist input {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  accent-color: var(--accent);
}

.preview-stage {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.preview-stage > div {
  min-width: 0;
}

.preview-stage span,
.canvas-pair span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 720;
}

.preview-stage canvas,
.canvas-pair canvas,
.gif-source-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #edf0f5;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, .04);
}

.preview-stage canvas {
  width: 100%;
  aspect-ratio: 4 / 3;
  image-rendering: pixelated;
}

.manifest-field {
  flex: 1 1 320px;
}

.device-panel,
.progress-block,
.output-box,
.notes-text {
  border: 0;
  border-radius: 8px;
  background: var(--surface-soft);
  box-shadow: var(--shadow-sm);
}

.flash-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.flash-table strong {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.flash-table span {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.device-panel {
  margin: 12px 0;
  padding: 12px;
}

.writer-metrics {
  margin: 0 0 12px;
}

.partition-table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.partition-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 13px;
}

.partition-table th,
.partition-table td {
  padding: 10px 11px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

.partition-table th {
  color: var(--muted);
  background: var(--surface);
  font-size: 12px;
  font-weight: 750;
}

.partition-table tr:last-child td {
  border-bottom: 0;
}

.partition-table .is-ok td {
  color: var(--ok);
  font-weight: 760;
}

.partition-table .is-warn td {
  color: var(--warn);
  font-weight: 760;
}

.wide-field,
.wide-mini-field {
  grid-column: 1 / -1;
}

.form-grid select,
.image-side-panel select,
.settings-card input {
  width: 100%;
  min-width: 0;
}

.action-strip {
  margin-top: 14px;
}

.output-box,
.notes-text {
  display: block;
  width: 100%;
  margin-top: 12px;
  color: var(--muted);
  padding: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.download-button {
  width: 100%;
  margin-top: 12px;
}

.checklist {
  display: grid;
  gap: 10px;
}

.asset-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.45fr);
  grid-template-rows: auto auto auto auto auto auto;
  gap: 14px;
  --asset-preview-height: 184px;
}

.asset-card {
  display: grid;
  grid-row: span 6;
  grid-template-rows: subgrid;
  gap: 12px;
  min-width: 0;
  border: 0;
  border-radius: 8px;
  background: var(--surface-soft);
  box-shadow: var(--shadow-sm);
  padding: 12px;
}

.asset-card h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
  font-weight: 760;
}

.card-note {
  margin: -2px 0 12px;
  color: var(--muted);
  line-height: 1.5;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.quick-title { margin: 0 0 16px; font-size: 18px; }
.quick-notice { border-left: 3px solid var(--warn); padding: 0 0 0 12px; margin-bottom: 20px; color: var(--warn); line-height: 1.6; }
.quick-notice p { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 8px; margin: 0; text-wrap: pretty; }
.quick-notice strong { color: var(--ink); font-weight: 750; white-space: nowrap; }
.quick-notice p > span { min-width: 0; overflow-wrap: anywhere; }
.quick-notice p + p { margin-top: 8px; }
.quick-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: repeat(5, auto); gap: 16px 32px; }
.quick-field-group { min-width: 0; display: grid; grid-row: span 5; grid-template-rows: subgrid; }
.quick-field-group h3 { font-size: 15px; font-weight: 700; line-height: 1.4; margin: 0; }
.quick-fields label, .quick-password-field { display: grid; grid-template-rows: 15px 40px auto; gap: 6px; min-width: 0; align-content: start; }
html:not([lang="zh-CN"]) .topbar { grid-template-columns: minmax(210px, .9fr) minmax(0, 1.4fr) auto; }
html:not([lang="zh-CN"]) .top-meta > span:first-child { white-space: normal; }
html:not([lang="zh-CN"]) .top-meta .top-version { white-space: normal; }
html:not([lang="zh-CN"]) .tab { white-space: normal; line-height: 1.2; font-size: 13px; }
html:not([lang="zh-CN"]) .toolbar button,
html:not([lang="zh-CN"]) .action-strip button,
html:not([lang="zh-CN"]) .summary-actions button { white-space: normal; line-height: 1.3; padding-top: 8px; padding-bottom: 8px; }
html:not([lang="zh-CN"]) .quick-fields label,
html:not([lang="zh-CN"]) .quick-password-field { grid-template-rows: minmax(30px, auto) 40px auto; }
html:not([lang="zh-CN"]) .quick-password-field > label { display: block; }
html:not([lang="zh-CN"]) .quick-notice p { grid-template-columns: 100px minmax(0, 1fr); }
html:not([lang="zh-CN"]) .quick-notice strong { white-space: normal; }
html:not([lang="zh-CN"]) .summary-note { white-space: normal; text-wrap: pretty; }
html:not([lang="zh-CN"]) .device-key-help { font-size: 11px; }
html:not([lang="zh-CN"]) .simulator-actions > button { white-space: normal; line-height: 1.3; padding-top: 6px; padding-bottom: 6px; }
html:not([lang="zh-CN"]) .image-preview-row { grid-template-columns: minmax(0, 1fr); }
html:not([lang="zh-CN"]) .work-summary { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); }
html:not([lang="zh-CN"]) .summary-actions { grid-column: 2; }
.quick-password-field > label { display: block; }
.quick-password-control { position: relative; min-width: 0; height: 40px; }
.quick-password-control input { padding-right: 44px; }
.quick-password-toggle { position: absolute; right: 1px; top: 1px; width: 38px; height: 38px; min-height: 38px; padding: 0; background: transparent; color: var(--muted); border-radius: 6px; }
.quick-password-toggle:hover { color: var(--ink); background: #262c33; }
.quick-password-toggle span { width: 18px; height: 18px; background: currentColor; mask: url('./assets/icons/eye.svg') center / contain no-repeat; }
.quick-password-toggle[aria-pressed="true"] span { mask-image: url('./assets/icons/eye-off.svg'); }
.quick-fields small, .quick-status { color: var(--muted); font-size: 12px; line-height: 1.5; }
.quick-result-label { display: block; margin-top: 16px; color: var(--muted); font-size: 12px; }
#quickResult { min-height: 84px; margin-top: 6px; font-family: monospace; overflow-wrap: anywhere; }
.quick-fallback { border-top: 1px solid var(--line); margin-top: 24px; padding-top: 16px; }
.quick-fallback summary { cursor: pointer; margin-bottom: 16px; }

.settings-card {
  display: block;
}

.image-preview-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, .48fr);
  gap: 12px;
  align-items: start;
  min-width: 0;
}

.mini-settings {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-content: start;
}

.control-fit,
.control-threshold,
.control-edge-fade {
  grid-column: 1 / -1;
}

.image-asset-card .control-threshold,
.image-asset-card .control-edge-fade {
  grid-column: auto;
}

.canvas-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-self: start;
  min-width: 0;
}

.canvas-pair > div {
  min-width: 0;
}

.canvas-pair canvas {
  width: 100%;
  height: var(--asset-preview-height);
  image-rendering: pixelated;
  object-fit: contain;
}

.small-canvas canvas {
  aspect-ratio: auto;
}

.gif-source-box {
  position: relative;
  width: 100%;
  height: var(--asset-preview-height);
  overflow: hidden;
}

.gif-source-box img,
.gif-source-box canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 0;
  object-fit: contain;
}

.gif-source-box canvas {
  opacity: 0;
  pointer-events: none;
}

.asset-list {
  min-height: 42px;
  max-height: 146px;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  padding: 10px;
  font-size: 13px;
}

.image-side-panel {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.build-actions {
  margin-top: 14px;
}

@supports not (grid-template-rows: subgrid) {
  .asset-grid {
    --asset-controls-height: 188px;
  }

  .asset-card {
    display: block;
  }

  .mini-settings {
    min-height: var(--asset-controls-height);
    margin: 12px 0;
  }

  .asset-card h2 {
    margin-bottom: 12px;
  }

  .asset-list {
    margin: 10px 0;
  }
}

.progress-block {
  padding: 12px;
  margin: 12px 0;
}

.progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--muted);
  font-weight: 750;
}

progress {
  width: 100%;
  height: 14px;
  accent-color: var(--accent);
}

.compact-terminal {
  height: 240px;
}

@media (max-width: 800px) {
  .topbar {
    grid-template-columns: 1fr;
    align-items: flex-start;
  }

  .top-meta,
  .top-actions {
    justify-content: flex-start;
    width: 100%;
    min-width: 0;
  }

  .work-summary,
  .form-grid,
  .metrics,
  .preview-grid,
  .preview-stage,
  .flash-table,
  .asset-grid,
  .settings-grid,
  .image-preview-row {
    grid-template-columns: 1fr;
  }

  .asset-grid {
    --asset-preview-height: min(52vw, 220px);
  }

  .image-asset-card {
    grid-column: auto;
  }

  .mini-settings {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .image-asset-card .control-threshold,
  .image-asset-card .control-edge-fade {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .topbar,
  .layout {
    width: min(100vw - 20px, 1200px);
  }

  .tabs {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0;
    padding: 4px;
  }

  .toolbar,
  .action-strip,
  .send-row {
    align-items: stretch;
    flex-direction: column;
  }

  button,
  .link-button,
  .download-button,
  .select-field,
  .select-field select,
  .summary-actions {
    width: 100%;
  }

  h1 {
    font-size: 21px;
  }

  .canvas-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid #87bfff;
  outline-offset: 3px;
}

input::placeholder,
textarea::placeholder { color: var(--muted-2); }

input:disabled,
select:disabled,
textarea:disabled {
  color: var(--muted-2);
  background: var(--bg-elevated);
  border-color: var(--line);
  opacity: .65;
  cursor: not-allowed;
}

input[type="file"] {
  min-width: 0;
  width: 100%;
  height: 40px;
  padding: 0 8px 0 0;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 38px;
}

input::file-selector-button {
  height: 38px;
  margin-right: 8px;
  padding: 0 12px;
  border: 0;
  border-right: 1px solid var(--line);
  background: #262c33;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

input[type="range"] { appearance: none; background: transparent; box-shadow: none; border: 0; }
input[type="range"]::-webkit-slider-runnable-track { height: 6px; border-radius: 3px; background: var(--line-strong); }
input[type="range"]::-webkit-slider-thumb { appearance: none; width: 16px; height: 16px; margin-top: -5px; border: 2px solid #a6d1ff; border-radius: 50%; background: var(--accent); }
input[type="range"]::-moz-range-track { height: 6px; border-radius: 3px; background: var(--line-strong); }
input[type="range"]::-moz-range-thumb { width: 12px; height: 12px; border: 2px solid #a6d1ff; border-radius: 50%; background: var(--accent); }
input[type="range"]:focus-visible { outline: 2px solid #87bfff; outline-offset: 2px; }
input[type="checkbox"]:focus-visible { outline: 2px solid #87bfff; outline-offset: 3px; }
.gif-source-box img:not([src]) { visibility: hidden; }
.gif-source-box { color-scheme: light; color: #1d1d1f; }
.device-panel { padding: 12px 0; }
.progress-block { padding: 12px 0; }
.output-box { border-top: 1px solid var(--line); border-radius: 0; }
.settings-card h2 { margin-bottom: 12px; }
.asset-list, .partition-table-wrap { scrollbar-color: var(--line-strong) var(--surface); }
.progress-head span { min-width: 0; overflow-wrap: anywhere; }
.progress-head strong { flex-shrink: 0; }
.topbar > *, .workspace, .tab-panel, .toolbar > *, .send-row > * { min-width: 0; }
progress { appearance: none; height: 8px; border: 0; border-radius: 4px; overflow: hidden; background: var(--line); }
progress::-webkit-progress-bar { background: var(--line); }
progress::-webkit-progress-value { background: var(--accent); }
progress::-moz-progress-bar { background: var(--accent); }

@media (min-width: 801px) and (max-width: 1100px) {
  .image-preview-row { grid-template-columns: minmax(0, 1fr); }
  .work-summary { grid-template-columns: minmax(0, .9fr) minmax(0, 1.45fr); }
  .summary-actions { grid-column: 2; }
}

@media (max-width: 640px) {
  .topbar { gap: 12px; padding: 16px 0; }
  .brand-mark { width: 40px; height: 40px; }
  .top-meta { font-size: 12px; justify-content: flex-start; }
  .top-actions { flex-wrap: nowrap; }
  .top-actions .icon-button { width: 38px; flex: 0 0 38px; }
  .tab { font-size: 12px; padding: 0 4px; border-radius: 6px; }
  .tab-panel { padding: 12px; }
  .asset-card { padding: 0; }
  .asset-grid { gap: 24px; --asset-preview-height: 156px; }
  .asset-card { display: grid; grid-row: auto; grid-template-rows: auto; }
  .summary-specs { gap: 8px; }
  .summary-specs strong { font-size: 13px; }
  .summary-specs > div { padding: 8px !important; }
  .mini-settings { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .image-asset-card .control-threshold,
  .image-asset-card .control-edge-fade { grid-column: auto; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .send-row input { flex: 0 0 auto; }
  .settings-grid { gap: 24px; }
  .top-meta span:last-child { white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}
.quick-field-group label[hidden] { display: none; }
.quick-provider-toggle { display: flex; align-items: center; gap: 8px; margin: 0; flex-shrink: 0; }
.quick-provider-heading { display: flex; align-items: center; gap: 12px 24px; flex-wrap: wrap; padding-bottom: 16px; margin-bottom: 20px; border-bottom: 1px solid var(--line); }
.quick-provider-heading small { display: block; color: var(--muted); font-size: 12px; line-height: 1.5; }
.quick-provider-heading small + small { margin-top: 4px; }
.firmware-install-card { border: 1px solid var(--line); border-radius: 8px; background: var(--surface-soft); padding: 20px 22px; }
.firmware-install-layout { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); gap: 24px; align-items: stretch; }
.firmware-install-main { min-width: 0; padding-right: 24px; border-right: 1px solid var(--line); }
.firmware-install-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.firmware-install-heading h2 { margin: 0; font-size: 18px; }
.firmware-install-heading p { margin: 6px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.firmware-install-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 20px 0; border-block: 1px solid var(--line); }
.firmware-install-facts > div { min-width: 0; padding: 12px 14px 12px 0; }
.firmware-install-facts > div + div { padding-left: 14px; border-left: 1px solid var(--line); }
.firmware-install-facts span { display: block; color: var(--muted); font-size: 12px; }
.firmware-install-facts strong { display: block; margin-top: 5px; overflow-wrap: anywhere; }
.firmware-version-line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; min-width: 0; margin-top: 5px; }
.firmware-version-line strong { margin-top: 0; }
.firmware-install-facts small { display: inline; color: var(--muted); font-size: 11px; line-height: 1.35; overflow-wrap: anywhere; }
.firmware-notes-panel { min-width: 0; min-height: 340px; display: flex; flex-direction: column; padding: 0; }
.firmware-notes-panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.firmware-notes-panel-heading div { min-width: 0; }
.firmware-notes-panel-heading span { display: block; color: var(--muted); font-size: 12px; }
.firmware-notes-panel-heading strong { display: block; margin-top: 4px; overflow-wrap: anywhere; }
.firmware-notes-panel-heading > span { flex-shrink: 0; color: var(--accent); font-weight: 700; }
.firmware-notes-body { flex: 1; min-height: 0; margin: 12px 0; overflow: auto; }
.firmware-notes-body p { margin: 0; color: var(--ink); font-size: 13px; line-height: 1.65; white-space: pre-line; overflow-wrap: anywhere; }
.firmware-notes-panel > a { align-self: flex-start; color: var(--accent); font-size: 12px; font-weight: 700; text-decoration: none; }
.firmware-notes-panel > a:hover { text-decoration: underline; }
.firmware-notes-panel > a[hidden] { display: none; }
.firmware-install-warning { margin: 0 0 14px; padding: 10px 12px; border-left: 3px solid var(--warn); color: var(--warn); font-size: 13px; line-height: 1.55; }
.firmware-install-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.firmware-install-actions button { min-width: 0; white-space: normal; }
.firmware-confirm { margin-top: 14px; padding: 12px; border: 1px solid var(--warn); border-radius: 8px; background: var(--warn-soft); }
.firmware-confirm p { margin: 0 0 10px; color: var(--warn); line-height: 1.55; }
.firmware-confirm p strong, .firmware-confirm p span { display: block; }
.firmware-confirm p strong { margin-bottom: 4px; color: var(--ink); }
.firmware-confirm > div { display: flex; justify-content: flex-end; gap: 10px; }
.firmware-confirm button { min-width: 120px; }
.firmware-install-progress { margin: 16px 0 0; padding: 0; }
.firmware-install-result { margin: 12px 0 0; color: var(--muted); line-height: 1.5; }
.firmware-advanced { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 16px; }
.firmware-advanced summary { cursor: pointer; color: var(--ink); font-weight: 700; }
.firmware-advanced[open] summary { margin-bottom: 16px; }
@media (min-width: 801px) {
  .quick-field-group > :nth-child(2) { grid-row: 2; }
  .quick-field-group > :nth-child(3) { grid-row: 3; }
  .quick-field-group > :nth-child(4) { grid-row: 4; }
  .quick-field-group > :nth-child(5) { grid-row: 5; }
}
@media (max-width: 800px) {
  .firmware-install-layout { grid-template-columns: 1fr; }
  .firmware-install-main { padding-right: 0; padding-bottom: 20px; border-right: 0; border-bottom: 1px solid var(--line); }
  .firmware-notes-panel { min-height: 280px; padding-top: 4px; }
  .quick-field-group { grid-row: auto; grid-template-rows: none; gap: 16px; }
  .quick-fields { grid-template-rows: none; }
  .writer-locked-notice { align-items: stretch; flex-direction: column; }
}

/* Narrow desktop-class layouts: stack the simulator and keep every control reachable. */
@media (max-width: 800px) {
  .work-summary,
  .form-grid,
  .metrics,
  .preview-grid,
  .preview-stage,
  .flash-table,
  .asset-grid,
  .settings-grid,
  .image-preview-row,
  .quick-fields {
    grid-template-columns: 1fr;
  }

  .tabs {
    display: flex;
    justify-content: flex-start;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .tab { flex: 0 0 auto; min-width: 92px; }
  .simulator-heading { align-items: flex-start; flex-direction: column; }
  .simulator-actions { width: 100%; }
  .simulator-actions > * { flex: 1 1 0; }
  .simulator-actions #simPortalToggle { width: auto; }
  .device-workspace { grid-template-columns: 1fr; gap: 18px; align-items: stretch; }
  .device-settings { padding: 16px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .virtual-portal { max-width: none; }
}

@media (max-width: 640px) {
  .tabs { padding: 4px; }
  .topbar { grid-template-columns: 1fr; }
  .top-meta { gap: 6px; }
  .top-actions { gap: 6px; }
  .top-actions .status-pill,
  .top-actions .language-select { flex: 1 1 auto; min-width: 0; }
  .top-actions .language-select { width: auto; }
  .simulator-actions { gap: 8px; }
  .device-keys { grid-template-columns: minmax(72px, 88px) minmax(0, 1fr) minmax(72px, 88px); gap: 6px; margin-top: 12px; }
  .device-keys button { min-width: 0; width: 100%; padding-left: 8px; padding-right: 8px; }
  .device-key-help { font-size: 11px; line-height: 1.35; overflow-wrap: anywhere; }
  .device-key-help p { white-space: normal; }
  .device-settings .action-strip { grid-template-columns: 1fr; }
  .firmware-install-card { padding: 16px; }
  .firmware-install-heading { flex-direction: column; gap: 8px; }
  .firmware-install-heading .status-pill { width: 100%; justify-content: center; }
  .firmware-install-actions { grid-template-columns: 1fr; }
  .firmware-confirm > div { flex-direction: column-reverse; }
  .firmware-confirm button { width: 100%; }
  .quick-notice p { grid-template-columns: 82px minmax(0, 1fr); gap: 6px; }
  .quick-fields { gap: 24px; }
  .quick-field-group { gap: 14px; }
  .screen-gallery { grid-template-columns: 1fr; gap: 20px; }
  .screen-gallery img { max-width: none; }
}

@media (max-width: 480px) {
  .layout, .topbar { width: calc(100vw - 16px); }
  .tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); overflow: visible; gap: 4px; }
  .tab { min-width: 0; font-size: 11px; white-space: normal; line-height: 1.25; }
  .tab-panel { padding: 10px; }
  .brand { align-items: flex-start; }
  .brand-mark { width: 38px; height: 38px; font-size: 18px; }
  h1 { font-size: 19px; }
  .brand p { font-size: 11px; }
  .top-meta > span:first-child { white-space: normal; }
  .top-version { line-height: 1.45; }
  .firmware-install-facts { grid-template-columns: 1fr; }
  .firmware-install-facts > div + div { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .quick-notice p { grid-template-columns: 1fr; gap: 2px; }
  .quick-notice strong { display: block; }
  .mini-settings { grid-template-columns: 1fr; }
  .image-asset-card .control-threshold,
  .image-asset-card .control-edge-fade { grid-column: 1 / -1; }
  .device-key-help { font-size: 10px; }
  #portalSimulator { height: 620px; }
}