:root {
  color-scheme: light;
  --bg: #f3f6f5;
  --surface: #ffffff;
  --surface-soft: #f8faf9;
  --line: #dce4e1;
  --line-strong: #c8d4d0;
  --text: #17211e;
  --muted: #687772;
  --primary: #087f73;
  --primary-dark: #05645b;
  --primary-soft: #e6f5f1;
  --correct: #17834f;
  --correct-soft: #e8f6ee;
  --wrong: #c9483d;
  --wrong-soft: #fcecea;
  --amber: #b26a08;
  --amber-soft: #fff3dc;
  --blue: #3167b1;
  --blue-soft: #ebf2fc;
  --shadow: 0 12px 34px rgba(22, 43, 36, 0.08);
  --sidebar: 232px;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
  font-size: 16px;
  letter-spacing: 0;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
  letter-spacing: 0;
}

button {
  border: 0;
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(8, 127, 115, 0.22);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.login-screen {
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(420px, 1fr) minmax(440px, 0.82fr);
  background: var(--surface);
}

.login-brand {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
  overflow: hidden;
  padding: clamp(48px, 8vw, 120px);
  color: #f5fffc;
  background: #153b37;
}

.login-brand::after {
  position: absolute;
  right: -110px;
  bottom: -150px;
  width: 440px;
  height: 440px;
  border: 80px solid rgba(126, 206, 184, 0.1);
  border-radius: 50%;
  content: "";
}

.brand-mark {
  display: grid;
  width: 62px;
  height: 62px;
  place-items: center;
  border-radius: 8px;
  color: #123d37;
  background: #9fe0cd;
}

.brand-mark svg {
  width: 32px;
  height: 32px;
  stroke-width: 1.8;
}

.brand-kicker,
.eyebrow {
  margin: 0 0 10px;
  color: #84d5c0;
  font-size: 0.8rem;
  font-weight: 700;
}

.login-brand h1 {
  margin: 0;
  font-size: 3.5rem;
  font-weight: 750;
  line-height: 1.15;
}

.brand-subtitle {
  max-width: 480px;
  margin: 18px 0 0;
  color: #c4d8d3;
  font-size: 1.1rem;
}

.login-metric {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 46px;
}

.login-metric span {
  font-size: 2.25rem;
  font-weight: 760;
}

.login-metric small {
  color: #aac8c0;
}

.login-form-wrap {
  display: grid;
  padding: 48px;
  place-items: center;
}

.login-form {
  width: min(100%, 400px);
}

.form-heading {
  margin-bottom: 34px;
}

.form-heading .eyebrow {
  color: var(--primary);
}

.form-heading h2 {
  margin: 0;
  font-size: 1.65rem;
  line-height: 1.3;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
  color: #46544f;
  font-size: 0.9rem;
  font-weight: 650;
}

.input-shell {
  display: flex;
  height: 48px;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface);
}

.input-shell:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(8, 127, 115, 0.1);
}

.input-shell svg {
  width: 18px;
  color: var(--muted);
}

.input-shell input {
  min-width: 0;
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
}

.form-error {
  min-height: 24px;
  margin: -4px 0 12px;
  color: var(--wrong);
  font-size: 0.88rem;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  transition: background 150ms ease, border-color 150ms ease, transform 150ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
}

.button svg {
  width: 18px;
  height: 18px;
}

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

.button.primary:hover {
  background: var(--primary-dark);
}

.button.secondary {
  border-color: var(--line-strong);
  background: var(--surface);
}

.button.secondary:hover {
  border-color: #9eb0aa;
  background: var(--surface-soft);
}

.button.danger {
  color: var(--wrong);
  border-color: #e9aaa4;
  background: var(--wrong-soft);
}

.button.full {
  width: 100%;
}

.app-shell {
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  z-index: 20;
  inset: 0 auto 0 0;
  display: flex;
  width: var(--sidebar);
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: #fbfcfc;
}

.sidebar-brand,
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-align: left;
  background: transparent;
}

.sidebar-brand {
  min-height: 92px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

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

.sidebar-brand strong {
  font-size: 1rem;
}

.sidebar-brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.7rem;
}

.brand-mark.small {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
}

.brand-mark.small svg {
  width: 22px;
  height: 22px;
}

.brand-mark.tiny {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.brand-mark.tiny svg {
  width: 18px;
  height: 18px;
}

.main-nav {
  display: grid;
  gap: 5px;
  padding: 20px 12px;
}

.bank-switcher-wrap {
  display: grid;
  gap: 6px;
  padding: 14px 16px 0;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 650;
}

.bank-switcher-wrap select,
.mobile-bank-control select {
  width: 100%;
  height: 38px;
  min-width: 0;
  padding: 0 30px 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  outline: 0;
  background: var(--surface);
  font-size: 0.78rem;
  font-weight: 650;
}

.mobile-bank-control {
  display: flex;
  min-width: 0;
  max-width: calc(100% - 86px);
  align-items: center;
  gap: 8px;
}

.mobile-bank-control select {
  width: min(230px, calc(100vw - 160px));
  height: 36px;
}

.main-nav button {
  display: grid;
  min-height: 44px;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border-radius: 6px;
  color: #51605b;
  text-align: left;
  background: transparent;
}

.main-nav button:hover,
.main-nav button.active {
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.main-nav svg {
  width: 19px;
}

.main-nav b {
  min-width: 24px;
  padding: 1px 6px;
  border-radius: 999px;
  color: var(--wrong);
  background: var(--wrong-soft);
  font-size: 0.72rem;
  text-align: center;
}

.sidebar-footer {
  display: grid;
  gap: 10px;
  margin-top: auto;
  padding: 18px;
  border-top: 1px solid var(--line);
}

.sync-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.78rem;
}

.sync-status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--correct);
}

.sync-status em {
  font-style: normal;
}

.sync-status.syncing span {
  background: var(--amber);
  animation: pulse 1s infinite alternate;
}

.sync-status.offline span {
  background: #8a9692;
}

@keyframes pulse {
  to { opacity: 0.35; }
}

.icon-text-button {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  color: var(--muted);
  background: transparent;
  font-size: 0.82rem;
}

.icon-text-button svg {
  width: 16px;
}

.mobile-header,
.mobile-nav {
  display: none;
}

.main-content {
  min-height: 100vh;
  margin-left: var(--sidebar);
  padding: 38px clamp(28px, 4.2vw, 72px) 70px;
}

.content-wrap {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.page-header h1 {
  margin: 0;
  font-size: 1.75rem;
  line-height: 1.25;
}

.page-header p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dashboard-hero {
  display: grid;
  min-height: 210px;
  grid-template-columns: 1.35fr 0.65fr;
  overflow: hidden;
  margin-bottom: 22px;
  border-radius: 8px;
  color: #f5fffc;
  background: #17423d;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 34px 38px;
}

.hero-copy .eyebrow {
  color: #8ed9c6;
}

.hero-copy h1 {
  margin: 0;
  font-size: 1.8rem;
  line-height: 1.35;
}

.hero-copy p:not(.eyebrow) {
  margin: 10px 0 22px;
  color: #c2d9d3;
}

.button.light {
  color: #123c36;
  background: #a8e2d1;
}

.hero-progress {
  display: grid;
  place-items: center;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.08);
}

.progress-ring {
  --value: 0;
  display: grid;
  width: 126px;
  height: 126px;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(#9be0cc calc(var(--value) * 1%), rgba(255,255,255,.12) 0);
}

.progress-ring::before {
  grid-area: 1 / 1;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: #173e39;
  content: "";
}

.progress-ring span {
  z-index: 1;
  text-align: center;
}

.progress-ring strong,
.progress-ring small {
  display: block;
}

.progress-ring strong {
  font-size: 1.5rem;
}

.progress-ring small {
  color: #afd1c8;
  font-size: 0.68rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.stat-card {
  padding: 19px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.stat-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.8rem;
}

.stat-label svg {
  width: 18px;
  color: var(--primary);
}

.stat-card strong {
  display: block;
  margin-top: 9px;
  font-size: 1.65rem;
  line-height: 1.1;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 14px;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.05rem;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 30px;
}

.mode-card {
  display: grid;
  min-height: 150px;
  grid-template-columns: 46px 1fr;
  align-content: center;
  gap: 4px 14px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: left;
  background: var(--surface);
}

.mode-card:hover {
  border-color: #94aaa3;
  box-shadow: var(--shadow);
}

.mode-icon {
  display: grid;
  width: 46px;
  height: 46px;
  grid-row: span 2;
  place-items: center;
  border-radius: 7px;
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.mode-card:nth-child(2) .mode-icon {
  color: var(--blue);
  background: var(--blue-soft);
}

.mode-card:nth-child(3) .mode-icon {
  color: var(--amber);
  background: var(--amber-soft);
}

.mode-icon svg {
  width: 23px;
}

.mode-card strong {
  align-self: end;
  font-size: 1rem;
}

.mode-card small {
  align-self: start;
  color: var(--muted);
  font-size: 0.78rem;
}

.dashboard-lower {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 14px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.panel-header {
  display: flex;
  min-height: 55px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 20px;
  border-bottom: 1px solid var(--line);
}

.panel-header h2,
.panel-header h3 {
  margin: 0;
  font-size: 0.95rem;
}

.chart-wrap {
  padding: 22px 20px 16px;
}

.week-chart {
  display: grid;
  height: 150px;
  grid-template-columns: repeat(7, 1fr);
  align-items: end;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}

.day-bar {
  position: relative;
  min-height: 4px;
  border-radius: 4px 4px 0 0;
  background: #6fc6b0;
}

.day-bar span {
  position: absolute;
  right: 0;
  bottom: -25px;
  left: 0;
  color: var(--muted);
  font-size: 0.7rem;
  text-align: center;
}

.chart-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
  color: var(--muted);
  font-size: 0.75rem;
}

.type-summary {
  display: grid;
  gap: 17px;
  padding: 20px;
}

.type-row {
  display: grid;
  grid-template-columns: 48px 1fr 42px;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
}

.meter {
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: #edf1ef;
}

.meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
}

.setup-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
}

.setup-form {
  padding: 24px;
}

.form-section + .form-section {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.form-section h3 {
  margin: 0 0 13px;
  font-size: 0.9rem;
}

.choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.choice-pill input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice-pill span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: #586761;
  background: var(--surface);
  cursor: pointer;
}

.choice-pill input:checked + span {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: var(--primary-soft);
  box-shadow: inset 0 0 0 1px var(--primary);
}

.choice-pill input:focus-visible + span {
  outline: 3px solid rgba(8, 127, 115, 0.2);
  outline-offset: 2px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.select-field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.8rem;
}

.select-field select,
.search-field input {
  width: 100%;
  height: 42px;
  padding: 0 11px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  outline: 0;
  background: var(--surface);
}

.setup-summary {
  position: sticky;
  top: 30px;
  align-self: start;
  padding: 22px;
}

.setup-summary .summary-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 7px;
  color: var(--primary);
  background: var(--primary-soft);
}

.setup-summary h2 {
  margin: 0;
  font-size: 1.05rem;
}

.setup-summary p {
  margin: 8px 0 20px;
  color: var(--muted);
  font-size: 0.82rem;
}

.summary-list {
  display: grid;
  gap: 11px;
  margin: 0 0 22px;
}

.summary-list div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.82rem;
}

.summary-list dt {
  color: var(--muted);
}

.summary-list dd {
  margin: 0;
  font-weight: 700;
}

.question-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 18px;
}

.question-main {
  min-width: 0;
}

.question-topbar {
  display: grid;
  grid-template-columns: auto minmax(100px, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin-bottom: 13px;
}

.question-counter,
.question-time {
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.progress-track {
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: #dfe7e4;
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
}

.question-panel {
  min-height: 520px;
  padding: clamp(22px, 4vw, 40px);
}

.question-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.badge {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--primary-dark);
  background: var(--primary-soft);
  font-size: 0.7rem;
  font-weight: 700;
}

.badge.neutral {
  color: #60706a;
  background: #edf1ef;
}

.badge.amber {
  color: #8a5004;
  background: var(--amber-soft);
}

.question-number {
  margin-left: auto;
  color: #96a29e;
  font-size: 0.72rem;
}

.question-stem {
  margin: 0 0 28px;
  font-size: 1.1rem;
  font-weight: 650;
  line-height: 1.8;
  white-space: pre-wrap;
}

.option-list {
  display: grid;
  gap: 11px;
}

.option-button {
  display: grid;
  width: 100%;
  min-height: 52px;
  grid-template-columns: 34px 1fr 22px;
  align-items: center;
  gap: 12px;
  padding: 9px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: #34423d;
  text-align: left;
  background: var(--surface);
}

.option-button:hover:not(:disabled) {
  border-color: #8ea69f;
  background: var(--surface-soft);
}

.option-key {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  color: var(--muted);
  background: #f8faf9;
  font-size: 0.78rem;
  font-weight: 750;
}

.option-button.selected {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.option-button.selected .option-key {
  border-color: var(--primary);
  color: #fff;
  background: var(--primary);
}

.option-button.correct {
  border-color: #63b28a;
  background: var(--correct-soft);
}

.option-button.correct .option-key {
  border-color: var(--correct);
  color: #fff;
  background: var(--correct);
}

.option-button.wrong {
  border-color: #df8e86;
  background: var(--wrong-soft);
}

.option-button.wrong .option-key {
  border-color: var(--wrong);
  color: #fff;
  background: var(--wrong);
}

.option-result-icon {
  display: grid;
  place-items: center;
}

.option-result-icon svg {
  width: 18px;
  height: 18px;
}

.option-button.correct .option-result-icon { color: var(--correct); }
.option-button.wrong .option-result-icon { color: var(--wrong); }

.answer-block {
  margin-top: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-soft);
}

.answer-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  min-height: 55px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 0.82rem;
}

.answer-verdict {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 750;
}

.answer-verdict.correct { color: var(--correct); }
.answer-verdict.wrong { color: var(--wrong); }
.answer-verdict svg { width: 18px; }

.answer-explanation {
  padding: 16px;
}

.answer-explanation h3 {
  margin: 0 0 7px;
  font-size: 0.82rem;
}

.answer-explanation p {
  margin: 0;
  color: #51605b;
  font-size: 0.86rem;
  line-height: 1.75;
  white-space: pre-wrap;
}

.question-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}

.action-group {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.icon-button {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--muted);
  background: var(--surface);
}

.icon-button:hover,
.icon-button.active {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-soft);
}

.icon-button svg {
  width: 19px;
}

.session-side {
  position: sticky;
  top: 28px;
  align-self: start;
}

.session-summary {
  padding: 18px;
}

.session-summary h3 {
  margin: 0 0 15px;
  font-size: 0.9rem;
}

.session-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.mini-metric {
  padding: 11px;
  border-radius: 6px;
  background: var(--surface-soft);
}

.mini-metric strong,
.mini-metric small {
  display: block;
}

.mini-metric strong {
  font-size: 1.05rem;
}

.mini-metric small {
  color: var(--muted);
  font-size: 0.68rem;
}

.side-actions {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.answer-sheet {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 7px;
  max-height: 420px;
  overflow-y: auto;
  padding: 16px;
}

.answer-sheet button {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 0.72rem;
}

.answer-sheet button.answered {
  color: #fff;
  border-color: var(--primary);
  background: var(--primary);
}

.answer-sheet button.marked {
  box-shadow: inset 0 -3px 0 var(--amber);
}

.answer-sheet button.current {
  outline: 2px solid var(--text);
  outline-offset: 1px;
}

.collection-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 15px;
}

.search-field {
  display: grid;
  width: min(360px, 100%);
  gap: 6px;
  color: var(--muted);
  font-size: 0.75rem;
}

.question-list {
  overflow: hidden;
}

.question-row {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr) auto;
  align-items: center;
  gap: 15px;
  min-height: 82px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
}

.question-row:last-child {
  border-bottom: 0;
}

.row-index {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 6px;
  color: var(--muted);
  background: #edf2f0;
  font-size: 0.74rem;
  font-weight: 700;
}

.row-copy {
  min-width: 0;
}

.row-copy p {
  overflow: hidden;
  margin: 0 0 5px;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.88rem;
}

.row-meta {
  display: flex;
  gap: 10px;
  color: var(--muted);
  font-size: 0.7rem;
}

.row-actions {
  display: flex;
  gap: 8px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.78rem;
}

.empty-state {
  display: grid;
  min-height: 320px;
  place-items: center;
  padding: 40px;
  color: var(--muted);
  text-align: center;
}

.empty-state svg {
  width: 42px;
  height: 42px;
  margin-bottom: 12px;
  color: #9aaba5;
}

.empty-state h2 {
  margin: 0 0 6px;
  color: var(--text);
  font-size: 1rem;
}

.empty-state p {
  margin: 0;
  font-size: 0.82rem;
}

.report-hero {
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: center;
  gap: 36px;
  padding: 34px;
  margin-bottom: 18px;
}

.score-circle {
  display: grid;
  width: 150px;
  height: 150px;
  place-items: center;
  border: 12px solid var(--primary-soft);
  border-radius: 50%;
}

.score-circle strong,
.score-circle small {
  display: block;
  text-align: center;
}

.score-circle strong {
  font-size: 2.1rem;
  line-height: 1.1;
}

.score-circle small {
  color: var(--muted);
  font-size: 0.72rem;
}

.report-copy h1 {
  margin: 0;
  font-size: 1.55rem;
}

.report-copy p {
  margin: 8px 0 20px;
  color: var(--muted);
}

.report-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}

.report-metrics div strong,
.report-metrics div small {
  display: block;
}

.report-metrics div small {
  color: var(--muted);
  font-size: 0.7rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.breakdown-list {
  display: grid;
  gap: 16px;
  padding: 22px;
}

.breakdown-item {
  display: grid;
  grid-template-columns: 58px 1fr 62px;
  align-items: center;
  gap: 13px;
  font-size: 0.8rem;
}

.dialog-form {
  min-width: min(460px, calc(100vw - 44px));
  padding: 22px;
}

.app-dialog {
  max-width: min(520px, calc(100vw - 32px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 24px 80px rgba(20, 35, 30, 0.22);
}

.app-dialog::backdrop {
  background: rgba(18, 29, 25, 0.46);
}

.dialog-form h2 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.dialog-form > p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.84rem;
}

.dialog-form textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  padding: 11px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  outline: 0;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 9px;
  margin-top: 18px;
}

.toast-region {
  position: fixed;
  z-index: 100;
  right: 22px;
  bottom: 22px;
  display: grid;
  gap: 8px;
  pointer-events: none;
}

.toast {
  min-width: 220px;
  padding: 11px 14px;
  border: 1px solid #35514a;
  border-radius: 6px;
  color: #fff;
  background: #243d37;
  box-shadow: var(--shadow);
  font-size: 0.8rem;
  animation: toast-in 180ms ease-out;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
}

@media (max-width: 1000px) {
  :root { --sidebar: 200px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-lower { grid-template-columns: 1fr; }
  .question-layout { grid-template-columns: minmax(0, 1fr) 230px; }
  .setup-layout { grid-template-columns: minmax(0, 1fr) 260px; }
}

@media (max-width: 760px) {
  .login-screen {
    display: block;
    min-height: 100vh;
    background: var(--bg);
  }
  .login-brand {
    min-height: 270px;
    justify-content: flex-start;
    gap: 18px;
    padding: 40px 26px 30px;
  }
  .login-brand h1 { font-size: 2.4rem; }
  .brand-subtitle { margin-top: 9px; font-size: 0.95rem; }
  .login-metric { margin-top: 4px; }
  .login-metric span { font-size: 1.45rem; }
  .login-form-wrap {
    display: block;
    padding: 30px 24px 44px;
  }
  .login-form { margin: 0 auto; }
  .sidebar { display: none; }
  .mobile-header {
    position: sticky;
    z-index: 20;
    top: 0;
    display: flex;
    height: 58px;
    align-items: center;
    justify-content: space-between;
    padding: 0 15px;
    border-bottom: 1px solid var(--line);
    background: rgba(251, 252, 252, 0.96);
    backdrop-filter: blur(12px);
  }
  .mobile-brand { padding: 0; }
  .mobile-nav {
    position: fixed;
    z-index: 25;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    height: calc(62px + env(safe-area-inset-bottom));
    grid-template-columns: repeat(5, 1fr);
    padding: 5px 4px env(safe-area-inset-bottom);
    border-top: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
  }
  .mobile-nav button {
    display: flex;
    min-width: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: var(--muted);
    background: transparent;
    font-size: 0.65rem;
  }
  .mobile-nav button.active { color: var(--primary); }
  .mobile-nav svg { width: 20px; height: 20px; }
  .main-content {
    min-height: calc(100vh - 58px);
    margin-left: 0;
    padding: 22px 14px 88px;
  }
  .page-header {
    align-items: flex-start;
    margin-bottom: 20px;
  }
  .page-header h1 { font-size: 1.35rem; }
  .dashboard-hero {
    min-height: 240px;
    grid-template-columns: 1fr;
  }
  .hero-copy { padding: 26px 22px; }
  .hero-copy h1 { font-size: 1.4rem; }
  .hero-progress { display: none; }
  .stat-grid { gap: 9px; }
  .stat-card { padding: 15px; }
  .stat-card strong { font-size: 1.35rem; }
  .mode-grid { grid-template-columns: 1fr; gap: 9px; }
  .mode-card { min-height: 104px; }
  .dashboard-lower { grid-template-columns: minmax(0, 1fr); }
  .setup-layout,
  .question-layout,
  .stats-grid { grid-template-columns: minmax(0, 1fr); }
  .setup-summary { position: static; order: -1; }
  .setup-summary .summary-list { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .question-topbar { gap: 10px; }
  .question-panel { min-height: 0; padding: 20px 16px; }
  .question-stem { font-size: 1rem; line-height: 1.72; }
  .option-button { grid-template-columns: 32px 1fr 18px; gap: 9px; padding: 9px 10px; }
  .session-side { position: static; }
  .question-layout .session-side.practice-side { display: none; }
  .answer-sheet { grid-template-columns: repeat(8, 1fr); max-height: 220px; }
  .question-actions {
    position: sticky;
    z-index: 10;
    bottom: 68px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: rgba(255,255,255,.97);
    box-shadow: 0 -8px 24px rgba(22, 43, 36, .08);
  }
  .collection-toolbar { align-items: stretch; flex-direction: column; }
  .search-field { width: 100%; }
  .question-row { grid-template-columns: 40px minmax(0, 1fr) auto; padding: 12px 10px; }
  .row-actions .icon-button:first-child { display: none; }
  .report-hero { grid-template-columns: 1fr; justify-items: center; padding: 24px; text-align: center; }
  .report-metrics { justify-content: center; }
  .toast-region { right: 14px; bottom: 78px; left: 14px; }
  .toast { min-width: 0; }
}

@media (max-width: 390px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .stat-label { font-size: 0.72rem; }
  .question-actions .button { padding-right: 11px; padding-left: 11px; }
  .answer-sheet { grid-template-columns: repeat(6, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}