:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --ink: #202a33;
  --muted: #6d7884;
  --line: #dce4e9;
  --teal: #0f8b8d;
  --teal-dark: #0a6468;
  --amber: #d9911d;
  --red: #c85845;
  --green: #2f8c5f;
  --sidebar: #263238;
  --shadow: 0 14px 38px rgba(24, 39, 52, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

button {
  border: 0;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: var(--sidebar);
  color: #f8fbfc;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: #f8fbfc;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--teal);
}

.brand-mark span {
  width: 4px;
  border-radius: 99px;
  background: currentColor;
}

.brand-mark span:nth-child(1) {
  height: 16px;
}

.brand-mark span:nth-child(2) {
  height: 26px;
}

.brand-mark span:nth-child(3) {
  height: 20px;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  margin-top: 3px;
  color: #b8c7cc;
}

.nav-list {
  display: grid;
  gap: 7px;
}

.nav-item {
  width: 100%;
  min-height: 44px;
  border-radius: var(--radius);
  padding: 0 12px;
  color: #c8d5d8;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.nav-item:hover,
.nav-item.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.connection-card {
  margin-top: auto;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  padding: 12px;
  display: grid;
  gap: 4px;
}

.connection-card span {
  color: #b8c7cc;
  font-size: 12px;
}

.connection-card.ready strong {
  color: #91e0c0;
}

.connection-card.error strong {
  color: #ffb8aa;
}

.workspace {
  min-width: 0;
  padding: 28px 32px 36px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 28px;
  line-height: 1.25;
}

h2 {
  margin-bottom: 10px;
  font-size: 18px;
}

.section {
  display: none;
  min-height: calc(100vh - 116px);
}

.section.active {
  display: block;
  animation: pageIn 160ms ease-out;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.section-head p {
  margin-bottom: 0;
  color: var(--muted);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric-card,
.score-card {
  min-height: 112px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--surface);
  display: grid;
  align-content: space-between;
}

.metric-card span,
.metric-card small,
.score-card span {
  color: var(--muted);
}

.metric-card strong,
.score-card strong {
  font-size: 30px;
  line-height: 1;
}

.metric-card.warn {
  border-top: 4px solid var(--amber);
}

.metric-card.pass,
.main-score {
  border-top: 4px solid var(--green);
}

.dashboard-grid,
.assessment-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 16px;
  align-items: start;
}

.language-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.language-card,
.compact-item,
.report-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #fbfcfd;
}

.language-card {
  display: grid;
  gap: 8px;
}

.language-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.language-chip {
  min-width: 38px;
  height: 26px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
}

.core-list,
.compact-list,
.report-list {
  display: grid;
  gap: 10px;
}

.core-list {
  color: var(--muted);
  font-size: 13px;
}

.compact-item {
  cursor: pointer;
}

.compact-item.active {
  border-color: var(--teal);
  box-shadow: inset 4px 0 0 var(--teal);
}

.compact-item strong,
.compact-item span {
  display: block;
}

.compact-item span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.assessment-path {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin: 4px 0 18px;
  padding: 4px 0;
}

.path-step {
  position: relative;
  min-height: 46px;
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 6px;
  padding: 0 6px;
  color: var(--muted);
}

.path-step::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--line);
  z-index: 0;
}

.path-step:first-child::before {
  left: 50%;
}

.path-step:last-child::before {
  right: 50%;
}

.path-step strong {
  position: relative;
  z-index: 1;
  width: 28px;
  height: 28px;
  border-radius: 99px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #eef3f5;
  color: currentColor;
  font-size: 12px;
}

.path-step span {
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 12px;
  font-weight: 800;
}

.path-step.active {
  color: var(--teal-dark);
}

.path-step.active strong {
  color: #ffffff;
  background: var(--teal);
}

.path-step.done {
  color: #1e6d49;
}

.path-step.done strong {
  color: #ffffff;
  background: var(--green);
}

.form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 180px 180px;
  gap: 10px;
  margin-bottom: 14px;
  align-items: stretch;
}

label {
  display: grid;
  gap: 6px;
}

.form-grid > label,
.readonly-field {
  min-width: 0;
  display: grid;
  grid-template-rows: 18px 48px;
  gap: 6px;
}

label span,
.readonly-field span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  background: #fbfcfd;
  outline: none;
}

input,
select {
  min-height: 42px;
  padding: 0 12px;
}

.form-grid input,
.form-grid select,
.readonly-field strong {
  height: 48px;
  min-height: 48px;
}

.readonly-field strong {
  min-width: 0;
  border: 0;
  border-radius: 0;
  color: var(--ink);
  background: transparent;
  display: flex;
  align-items: center;
  padding: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.precheck-panel {
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 14px;
  background: #fbfcfd;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.precheck-panel > div {
  display: grid;
  gap: 3px;
}

.precheck-panel span {
  color: var(--muted);
  font-size: 13px;
}

.precheck-panel.passed {
  border-color: #b7dccc;
  background: #f2fbf6;
}

.precheck-panel.recording {
  border-color: var(--amber);
  background: #fff8e8;
}

.sequence-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.sequence-step {
  min-height: 34px;
  max-width: 220px;
  border: 0;
  border-radius: 99px;
  padding: 7px 11px;
  background: #eef3f5;
  display: grid;
  align-content: center;
  gap: 1px;
  cursor: default;
}

.sequence-step strong,
.sequence-step span {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.sequence-step strong {
  font-size: 12px;
}

.sequence-step span {
  color: var(--muted);
  font-size: 11px;
}

.sequence-step.current {
  color: #ffffff;
  background: var(--teal);
}

.sequence-step.done {
  color: #1e6d49;
  background: #dff2ef;
}

.sequence-step.current span,
.sequence-step.current strong {
  color: #ffffff;
}

textarea {
  min-height: 116px;
  padding: 12px;
  resize: vertical;
}

.prompt-box {
  min-height: 166px;
  border: 0;
  border-radius: var(--radius);
  background: #f7fafb;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  text-align: center;
}

.prompt-box span {
  font-size: 30px;
  line-height: 1.35;
  font-weight: 750;
}

.info-strip {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.info-strip div {
  border: 0;
  border-radius: 99px;
  padding: 8px 12px;
  background: #eef3f5;
}

.info-strip span,
.info-strip strong {
  display: block;
}

.info-strip span {
  color: var(--muted);
  font-size: 12px;
}

.info-strip strong {
  margin-top: 2px;
  font-size: 14px;
}

.recorder {
  margin: 16px 0;
  border: 0;
  border-radius: var(--radius);
  padding: 16px;
  background: #fbfcfd;
}

.waveform {
  height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.waveform span {
  width: 9px;
  height: 26px;
  border-radius: 99px;
  background: var(--teal);
  opacity: 0.58;
}

.waveform span:nth-child(3n) {
  height: 58px;
}

.waveform span:nth-child(4n) {
  height: 74px;
  background: var(--amber);
}

.waveform.recording span {
  animation: pulse 880ms ease-in-out infinite;
}

.waveform.recording span:nth-child(2n) {
  animation-delay: 120ms;
}

.waveform.recording span:nth-child(3n) {
  animation-delay: 240ms;
}

@keyframes pulse {
  0%,
  100% {
    transform: scaleY(0.52);
  }
  50% {
    transform: scaleY(1.12);
  }
}

.record-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
}

.record-meta strong {
  color: var(--ink);
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary-button,
.ghost-button,
.file-button {
  min-height: 42px;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  cursor: pointer;
}

.primary-button {
  color: #ffffff;
  background: var(--teal);
}

.primary-button:disabled {
  cursor: not-allowed;
  background: #a7bdc0;
}

.ghost-button,
.file-button {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
}

.file-button input {
  display: none;
}

.file-button.disabled {
  cursor: not-allowed;
  color: var(--muted);
  background: #eef3f5;
}

.submit {
  margin-left: auto;
}

.audio-preview {
  width: 100%;
  margin-top: 14px;
}

.message {
  min-height: 22px;
  margin-top: 12px;
  color: var(--muted);
}

.message.error {
  color: var(--red);
}

.status,
.status-chip {
  min-height: 28px;
  border-radius: 99px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  color: var(--teal-dark);
  background: #dff2ef;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.status.busy,
.status-chip.need_review {
  color: #8a5a06;
  background: #fff1cf;
}

.status.error,
.status-chip.failed,
.status-chip.invalid {
  color: #94422f;
  background: #ffe3dd;
}

.status-chip.passed {
  color: #1e6d49;
  background: #ddf1e8;
}

.check-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.check-list li {
  margin: 9px 0;
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.business-panel {
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfcfd;
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: 16px;
}

.business-panel.pass {
  border-top: 4px solid var(--green);
}

.business-panel.review {
  border-top: 4px solid var(--amber);
}

.business-panel.fail {
  border-top: 4px solid var(--red);
}

.business-panel span,
.business-panel small {
  color: var(--muted);
}

.business-panel strong {
  display: block;
  margin: 4px 0;
  font-size: 22px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.compact-item .tag-row,
.report-detail-meta .tag-row,
.review-tag-row {
  margin-top: 8px;
}

.tag {
  min-height: 26px;
  border-radius: 99px;
  display: inline-flex;
  align-items: center;
  padding: 0 9px;
  color: var(--teal-dark);
  background: #dff2ef;
  font-size: 12px;
  font-weight: 800;
}

.tag.high {
  color: #94422f;
  background: #ffe3dd;
}

.tag.medium {
  color: #8a5a06;
  background: #fff1cf;
}

.tag.muted {
  color: var(--muted);
  background: #eef3f5;
}

.warning-box {
  margin-top: 14px;
  border: 1px solid #f1d08a;
  border-radius: var(--radius);
  padding: 12px;
  color: #7a4d04;
  background: #fff8e8;
}

.two-column,
.review-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 16px;
  align-items: start;
}

.review-grid {
  grid-template-columns: 360px minmax(0, 1fr);
}

.word-table-wrap {
  overflow-x: auto;
}

.question-bank-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.question-language-tabs {
  display: grid;
  gap: 8px;
}

.question-language-tab {
  width: 100%;
  min-height: 74px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: #fbfcfd;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  text-align: left;
  cursor: pointer;
}

.question-language-tab strong,
.question-language-tab small {
  display: block;
  min-width: 0;
}

.question-language-tab small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.question-language-tab.active {
  border-color: var(--teal);
  box-shadow: inset 4px 0 0 var(--teal);
}

.question-bank-main,
.question-groups,
.question-items {
  display: grid;
  gap: 12px;
}

.question-bank-summary {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfcfd;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}

.question-bank-summary h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

.question-bank-summary p {
  margin-bottom: 0;
  color: var(--muted);
}

.question-summary-metrics {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.question-summary-metrics span,
.question-group header > span {
  min-height: 26px;
  border-radius: 99px;
  display: inline-flex;
  align-items: center;
  padding: 0 9px;
  color: var(--teal-dark);
  background: #dff2ef;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.question-group {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}

.question-group header {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  background: #fbfcfd;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.question-group h3 {
  margin: 0 0 4px;
  font-size: 16px;
}

.question-group p {
  margin-bottom: 0;
  color: var(--muted);
}

.question-items {
  padding: 12px;
}

.question-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #fbfcfd;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 12px;
  align-items: start;
}

.question-item-main,
.question-item-meta {
  min-width: 0;
  display: grid;
  gap: 6px;
}

.question-item-main strong {
  line-height: 1.45;
}

.question-item-main span,
.question-item-meta span {
  color: var(--muted);
  font-size: 13px;
}

.question-item-meta code {
  font-size: 13px;
}

.empty-state {
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 14px;
  color: var(--muted);
  background: #fbfcfd;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
}

.report-question-text,
.report-detail-meta span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.45;
}

.report-detail-meta {
  display: grid;
  gap: 2px;
}

.phoneme-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.phoneme {
  min-height: 26px;
  border-radius: 99px;
  display: inline-flex;
  align-items: center;
  padding: 0 9px;
  color: var(--teal-dark);
  background: #dff2ef;
  font-size: 12px;
  font-weight: 700;
}

.phoneme.low {
  color: #94422f;
  background: #ffe3dd;
}

.review-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.review-summary {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: #fbfcfd;
}

.review-summary strong,
.review-summary span,
.review-meta-grid span,
.review-meta-grid strong,
.review-question-row strong,
.review-question-row span {
  display: block;
}

.review-summary span,
.review-meta-grid span,
.review-question-row span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.review-kicker {
  margin: 0 0 4px;
  color: var(--teal-dark);
  font-weight: 800;
}

.review-overview > strong {
  font-size: 20px;
}

.review-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.review-meta-grid div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  background: #ffffff;
}

.review-question-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.review-question-list h3 {
  margin: 0;
  font-size: 15px;
}

.review-question-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #ffffff;
}

.review-question-row.pending {
  border-color: #b7dbd5;
  box-shadow: inset 4px 0 0 var(--teal);
}

.review-audio {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.review-audio > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.review-audio audio {
  width: 100%;
  height: 34px;
}

.review-audio.missing {
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 10px;
  color: var(--muted);
  background: #f6f8f9;
}

.review-audio.missing strong {
  font-size: 13px;
}

.review-question-empty {
  color: var(--muted);
  font-size: 14px;
}

.review-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.review-controls .full {
  grid-column: 1 / -1;
}

.review-round-item {
  display: grid;
  gap: 4px;
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 88px minmax(0, 1fr);
  }

  .brand div:last-child,
  .nav-item,
  .connection-card {
    display: none;
  }

  .brand {
    justify-content: center;
  }

  .dashboard-grid,
  .assessment-grid,
  .two-column,
  .review-grid,
  .question-bank-layout {
    grid-template-columns: 1fr;
  }

  .review-meta-grid,
  .review-controls,
  .review-question-row {
    grid-template-columns: 1fr;
  }

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

  .question-language-tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .question-bank-summary,
  .question-item {
    grid-template-columns: 1fr;
  }

  .question-summary-metrics {
    justify-content: flex-start;
  }

  .score-grid,
  .form-grid,
  .business-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .app-shell {
    display: block;
  }

  .sidebar {
    position: sticky;
    height: auto;
    padding: 12px 16px;
  }

  .workspace {
    padding: 18px 14px 24px;
  }

  .topbar,
  .section-head,
  .record-meta {
    flex-direction: column;
  }

  .metric-strip,
  .language-grid,
  .question-language-tabs,
  .score-grid,
  .assessment-path,
  .business-panel,
  .form-grid,
  .info-strip {
    grid-template-columns: 1fr;
  }

  .prompt-box span {
    font-size: 22px;
  }

  .control-row > * {
    width: 100%;
  }

  .submit {
    margin-left: 0;
  }
}