:root {
  color-scheme: dark;
  --bg: #11100f;
  --paper: #171513;
  --paper-soft: rgba(255, 250, 240, .07);
  --ink: #fffaf0;
  --muted: rgba(255, 250, 240, .68);
  --line: rgba(255, 255, 255, .15);
  --accent: #d4a84f;
  --accent-2: #9ab8aa;
  --accent-soft: rgba(212, 168, 79, .14);
  --ok: #8bc59e;
  --bad: #e58b7e;
  --warn: #e5bf70;
  --shadow: 0 22px 70px rgba(0, 0, 0, .34);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.quiz-lock .main-nav,
body.quiz-lock .hero-actions,
body.quiz-lock .study-progress,
body.quiz-lock #theoryView,
body.quiz-lock #homeView {
  display: none !important;
}

body.quiz-lock .topbar {
  position: sticky;
  top: 0;
  z-index: 20;
}

body.quiz-lock main {
  max-width: 1120px;
}

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

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.topbar-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  min-width: 420px;
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: #ffffff;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 18px rgba(15, 118, 110, .18);
}

.brand-copy,
.brand-title,
.brand-subtitle,
.brand-meta {
  display: block;
}

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

.brand-title {
  font-weight: 850;
  line-height: 1.2;
}

.brand-subtitle {
  margin-top: 2px;
  color: var(--ink);
  font-size: .88rem;
  font-weight: 760;
  line-height: 1.25;
}

.brand-meta {
  margin-top: 2px;
  color: var(--muted);
  font-size: .78rem;
  line-height: 1.25;
}

.main-nav {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-btn,
.ghost-btn,
.primary-btn,
.soft-btn,
.danger-btn {
  min-height: 40px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 10px 15px;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}

.nav-btn {
  color: var(--muted);
  background: transparent;
}

.nav-btn.active,
.nav-btn:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.primary-btn {
  color: #ffffff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 22px rgba(37, 99, 235, .18);
}

.primary-btn:disabled {
  opacity: .55;
  cursor: not-allowed;
  box-shadow: none;
}

.ghost-btn {
  color: var(--accent);
  background: #ffffff;
  border-color: var(--line);
}

.soft-btn {
  color: var(--accent);
  font-weight: 800;
  background: var(--accent-soft);
}

.danger-btn {
  color: #8a1f17;
  font-weight: 800;
  background: #fde8e6;
}

.primary-btn:hover,
.soft-btn:hover,
.ghost-btn:hover,
.danger-btn:hover {
  transform: translateY(-1px);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.view {
  animation: fadeUp .22s ease both;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  gap: 18px;
  align-items: stretch;
}

.hero-copy,
.overview-panel,
.panel,
.question-card,
.result-card,
.lock-panel {
  background: rgba(255, 255, 255, .96);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: clamp(26px, 4vw, 48px);
}

.kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero p,
.view-title p,
.topic-card p,
.topic-card ul,
.small-note,
.lock-panel p,
.footer-note {
  color: var(--muted);
  line-height: 1.58;
}

.hero p {
  max-width: 720px;
  margin: 0;
  font-size: 1.06rem;
}

.hero .module-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.hero .hero-summary {
  max-width: 820px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 4.6vw, 4.15rem);
  font-weight: 900;
  line-height: 1.02;
}

.hero-actions,
.result-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-actions {
  margin-top: 24px;
}

.module-picker {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(240px, .42fr) 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .88);
  box-shadow: var(--shadow);
}

.module-picker h2 {
  margin: 0;
  font-size: clamp(1.35rem, 2vw, 1.85rem);
}

.module-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.module-tab {
  min-height: 86px;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #ffffff;
  color: var(--ink);
}

.module-tab.active {
  border-color: rgba(15, 118, 110, .4);
  background: var(--accent-soft);
  box-shadow: inset 3px 0 0 var(--accent);
}

.module-tab span,
.module-tab small,
.module-tab em {
  display: block;
}

.module-tab em {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: .72rem;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.module-tab span {
  font-weight: 850;
}

.module-tab small {
  margin-top: 6px;
  color: var(--muted);
}

.overview-panel {
  padding: 18px;
  display: grid;
  align-content: space-between;
  gap: 18px;
}

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

.stat {
  min-height: 108px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-soft);
  display: grid;
  align-content: center;
  gap: 4px;
}

.stat strong {
  color: var(--accent);
  font-size: 2rem;
  line-height: 1;
}

.stat span {
  color: var(--muted);
  font-size: .9rem;
}

.study-progress {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
}

.progress-bar {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #d8e4ee;
}

.progress-bar > div {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .25s ease;
}

.view-title {
  margin: 4px 0 18px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.view-title h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1.05;
}

.view-title p:not(.kicker) {
  margin: 8px 0 0;
}

.theory-layout {
  display: grid;
  grid-template-columns: minmax(230px, .36fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.topic-grid {
  position: sticky;
  top: 86px;
  display: grid;
  gap: 8px;
}

.topic-link {
  color: inherit;
  text-decoration: none;
  text-align: left;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px;
  align-items: center;
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .88);
}

.topic-link:hover,
.topic-link.done,
.topic-link.active {
  border-color: rgba(15, 118, 110, .32);
  background: var(--accent-soft);
}

.topic-link.active {
  box-shadow: inset 3px 0 0 var(--accent);
}

.topic-link-number {
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: #ffffff;
  background: var(--accent);
  font-weight: 900;
}

.topic-link b,
.topic-link small {
  display: block;
}

.topic-link b {
  font-size: .95rem;
  line-height: 1.25;
}

.topic-link small {
  margin-top: 3px;
  color: var(--muted);
  font-size: .78rem;
}

.theory-section {
  scroll-margin-top: 98px;
}

.theory-section-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.theory-section-head h3 {
  margin: 0;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.1;
}

.theory-section-head p:not(.kicker) {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.study-badge {
  white-space: nowrap;
  border-radius: 999px;
  padding: 7px 11px;
  color: var(--warn);
  background: #fff1c6;
  font-size: .78rem;
  font-weight: 850;
}

.study-badge.done {
  color: var(--ok);
  background: #dcfce7;
}

.concept-list {
  display: grid;
  gap: 0;
}

.concept-item {
  display: grid;
  grid-template-columns: minmax(150px, .34fr) 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.concept-item h4 {
  margin: 0;
  color: var(--accent);
  font-size: 1rem;
}

.concept-body {
  min-width: 0;
  display: grid;
  gap: 12px;
}

.concept-body p {
  margin: 0;
  color: var(--ink);
  line-height: 1.65;
}

.concept-item.has-diagram {
  grid-template-columns: minmax(150px, .24fr) minmax(0, 1fr);
}

.piano-diagram {
  margin: 0;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
}

.piano-diagram-scroll {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: hidden;
  overflow-y: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
  background: linear-gradient(180deg, #f8fafc, #edf4f8);
}

.piano-diagram-keyboard {
  position: relative;
  isolation: isolate;
  overflow: visible;
  width: 100%;
  min-width: 0;
  height: 104px;
}

.theory-section .piano-diagram-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}

.theory-section .piano-diagram-keyboard {
  width: calc(var(--white-count) * 24px);
  min-width: calc(var(--white-count) * 24px);
}

.piano-key {
  position: absolute;
  top: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  border: 1px solid #a8b3c3;
  user-select: none;
}

.piano-key.white {
  z-index: 1;
  height: 96px;
  border-radius: 0 0 4px 4px;
  background: #fff;
}

.piano-key.black {
  z-index: 3;
  height: 64px;
  border-color: #0f172a;
  border-radius: 0 0 3px 3px;
  background: #111827;
  color: #fff;
}

.piano-key.marked {
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, .24);
}

.piano-note-name {
  position: absolute;
  right: 3px;
  bottom: 3px;
  color: rgba(15, 23, 42, .72);
  font-size: .52rem;
  font-weight: 850;
  line-height: 1;
  pointer-events: none;
}

.piano-key.black .piano-note-name {
  color: rgba(255, 255, 255, .82);
}

.piano-floating-label {
  position: absolute;
  z-index: 12;
  min-width: 30px;
  max-width: none;
  padding: 2px 5px;
  transform: translateX(-50%);
  text-align: center;
  line-height: 1.1;
  white-space: nowrap;
  pointer-events: none;
}

.piano-floating-label.black-label {
  min-width: 30px;
  padding: 2px 5px;
}

.chord-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
}

.chord-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: .92rem;
}

.chord-table th,
.chord-table td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.chord-table th {
  color: var(--muted);
  background: #f8fafc;
  font-size: .76rem;
  letter-spacing: .02em;
  text-transform: uppercase;
}

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

.chord-table code {
  white-space: nowrap;
  color: var(--ink);
  background: transparent;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: .9em;
}

.study-toggle {
  margin-top: 18px;
}

.theory-actions {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.panel,
.result-card,
.lock-panel {
  padding: 24px;
}

.lock-banner {
  margin-bottom: 16px;
  border-color: #f3d27d;
  background: #fff9e8;
}

.quiz-start {
  display: grid;
  grid-template-columns: .96fr 1.04fr;
  gap: 18px;
  align-items: start;
}

.lock-panel {
  background: #f7fbff;
}

.lock-panel h3,
.panel h3 {
  margin: 0 0 8px;
}

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

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label,
.field span {
  color: var(--muted);
  font-size: .88rem;
  font-weight: 750;
}

.field input,
.field textarea,
.field select,
.answer-input,
.answer-area,
select {
  width: 100%;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 13px;
  outline: none;
}

.field input:focus,
.field textarea:focus,
.field select:focus,
.answer-input:focus,
.answer-area:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, .14);
}

.form-actions {
  margin-top: 18px;
}

.quiz-toolbar {
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.quiz-status {
  color: var(--muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: 999px;
  padding: 7px 11px;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: .82rem;
  font-weight: 850;
}

.pill.warn {
  color: var(--warn);
  background: #fff1c6;
}

.pill.ok {
  color: var(--ok);
  background: #dcfce7;
}

.quiz-progress {
  margin-bottom: 18px;
}

.question-list,
.review-list,
.detail-stack {
  display: grid;
  gap: 14px;
}

.question-card {
  padding: 19px;
}

.question-head {
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.qnum {
  min-width: 44px;
  color: var(--accent);
  font-weight: 900;
}

.question-card h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.45;
}

.question-diagram {
  margin: 0 0 14px 56px;
}

.section-label {
  margin: 0 0 6px 56px;
  color: var(--muted);
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.options {
  display: grid;
  gap: 8px;
}

.option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 11px 12px;
  background: #ffffff;
}

.choice-with-diagram {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
}

.choice-copy {
  min-width: 0;
  display: grid;
  gap: 8px;
}

.choice-text {
  font-weight: 750;
}

.option-diagram .piano-diagram-scroll,
.question-diagram .piano-diagram-scroll {
  padding: 6px;
}

.option-diagram .piano-diagram-keyboard,
.question-diagram .piano-diagram-keyboard {
  height: 92px;
}

.option-diagram .piano-key.white,
.question-diagram .piano-key.white {
  height: 84px;
}

.option-diagram .piano-key.black,
.question-diagram .piano-key.black {
  height: 56px;
}

.option input {
  margin-top: 4px;
}

.multi-note {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 750;
}

.piano-select-wrap {
  width: 100%;
  overflow-x: hidden;
  overflow-y: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px;
  background: linear-gradient(180deg, #f8fafc, #edf4f8);
}

.piano-select-keyboard {
  position: relative;
  isolation: isolate;
  width: 100%;
  min-width: 0;
  height: 106px;
}

.piano-answer-key {
  position: absolute;
  top: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  border: 1px solid #a8b3c3;
  cursor: pointer;
  user-select: none;
}

.piano-answer-key.white {
  z-index: 1;
  height: 98px;
  border-radius: 0 0 4px 4px;
  background: #ffffff;
}

.piano-answer-key.black {
  z-index: 3;
  height: 65px;
  border-color: #0f172a;
  border-radius: 0 0 3px 3px;
  background: #111827;
}

.piano-answer-key.selected {
  z-index: 8;
  background: #facc15;
  box-shadow: inset 0 0 0 2px rgba(15, 23, 42, .32), 0 0 0 2px rgba(250, 204, 21, .34);
}

.piano-answer-key.black.selected {
  background: #8f6f08;
}

.inline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}

.blank-row,
.match-row,
.classify-row {
  margin-bottom: 8px;
  display: grid;
  grid-template-columns: minmax(150px, .52fr) 1fr;
  align-items: center;
  gap: 10px;
}

.blank-row span,
.match-row span,
.classify-row span {
  color: var(--muted);
  font-weight: 800;
}

.order-list {
  margin: 0 0 12px 18px;
  color: var(--muted);
}

.answer-area {
  min-height: 96px;
  resize: vertical;
  line-height: 1.45;
}

.feedback {
  margin-top: 13px;
  border-radius: var(--radius);
  padding: 12px 13px;
  line-height: 1.45;
}

.feedback.correct {
  color: #14532d;
  background: #dcfce7;
}

.feedback.partial {
  color: #713f12;
  background: #fef3c7;
}

.feedback.wrong {
  color: #7f1d1d;
  background: #fee2e2;
}

.submit-strip {
  margin-top: 16px;
  display: flex;
  justify-content: flex-end;
}

.result-score {
  display: grid;
  grid-template-columns: 190px 1fr;
  align-items: center;
  gap: 22px;
}

.score-circle {
  position: relative;
  width: 174px;
  height: 174px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  background: conic-gradient(var(--accent) 0deg, var(--accent-2) var(--score-deg, 0deg), #d8e4ee var(--score-deg, 0deg));
}

.score-circle::before {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 50%;
  background: var(--paper);
}

.score-circle strong,
.score-circle span {
  position: relative;
}

.score-circle strong {
  font-size: 3.1rem;
  line-height: 1;
}

.score-circle span {
  color: var(--muted);
  font-weight: 800;
}

.result-card h2 {
  margin: 0 0 8px;
}

.review-list {
  margin-top: 20px;
}

.review-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #ffffff;
}

.review-item summary {
  cursor: pointer;
  font-weight: 850;
}

.review-meta {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.review-meta b {
  color: var(--ink);
}

.footer-note {
  margin-top: 22px;
  font-size: .9rem;
}

@media (max-width: 920px) {
  .hero,
  .module-picker,
  .theory-layout,
  .quiz-start,
  .result-score {
    grid-template-columns: 1fr;
  }

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

  .brand {
    min-width: 0;
  }
}

@media (max-width: 640px) {
  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .main-nav {
    justify-content: flex-start;
  }

  .topic-grid,
  .module-tabs,
  .form-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .theory-section-head,
  .concept-item {
    grid-template-columns: 1fr;
  }

  .theory-section-head {
    display: grid;
  }

  .blank-row,
  .match-row,
  .classify-row {
    grid-template-columns: 1fr;
  }

  main,
  .topbar-inner {
    width: min(100% - 24px, 1180px);
  }

  .hero-copy,
  .panel,
  .result-card,
  .lock-panel {
    padding: 20px;
  }

  .section-label {
    margin-left: 0;
  }
}

/* Jaramillo Music Lab visual system */
.page-bg {
  background:
    linear-gradient(115deg, rgba(17, 16, 15, .96), rgba(17, 16, 15, .74) 54%, rgba(17, 16, 15, .9)),
    linear-gradient(180deg, rgba(17, 16, 15, .18), rgba(17, 16, 15, .86)),
    url("../../../assets/workshop-photos/armonia.jpg") center 36% / cover no-repeat;
  inset: 0;
  position: fixed;
  z-index: -2;
}

.page-bg::after {
  background:
    radial-gradient(circle at 70% 16%, rgba(212, 168, 79, .2), transparent 30%),
    repeating-linear-gradient(8deg, rgba(255, 250, 240, .018) 0 1px, transparent 1px 7px);
  content: "";
  inset: 0;
  position: absolute;
}

.jml-app-header {
  align-items: center;
  background: rgba(17, 16, 15, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  min-height: 76px;
  padding: 16px clamp(18px, 4vw, 56px);
  position: sticky;
  top: 0;
  z-index: 30;
}

.jml-brand,
.jml-lab-link {
  color: var(--ink);
  text-decoration: none;
}

.jml-brand {
  align-items: center;
  display: flex;
  font-weight: 900;
  gap: 12px;
}

.jml-brand-mark {
  align-items: center;
  background: var(--accent);
  border-radius: 50%;
  color: #161514;
  display: inline-flex;
  font-size: .82rem;
  height: 38px;
  justify-content: center;
  width: 38px;
}

.jml-lab-link {
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 999px;
  color: rgba(255, 250, 240, .86);
  font-size: .9rem;
  font-weight: 900;
  padding: 10px 16px;
}

.jml-lab-link:hover,
.jml-lab-link:focus-visible {
  background: var(--accent);
  border-color: var(--accent);
  color: #161514;
  outline: 0;
}

.topbar {
  background: rgba(17, 16, 15, .76);
  border-bottom-color: var(--line);
  top: 76px;
}

body.quiz-lock .topbar {
  top: 76px;
}

.topbar-inner {
  padding-block: 12px;
}

.brand {
  min-width: min(520px, 58vw);
}

.logo {
  background: var(--accent);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .28);
  color: #161514;
}

.brand-title {
  color: var(--ink);
}

.brand-subtitle {
  color: rgba(255, 250, 240, .8);
}

.brand-meta {
  color: var(--accent);
}

.nav-btn,
.ghost-btn,
.primary-btn,
.soft-btn,
.danger-btn {
  border-radius: 6px;
}

.nav-btn {
  color: var(--muted);
}

.nav-btn.active,
.nav-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.primary-btn {
  background: var(--accent);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .25);
  color: #161514;
}

.ghost-btn {
  background: rgba(255, 250, 240, .06);
  border-color: var(--line);
  color: var(--ink);
}

.soft-btn {
  background: var(--accent-soft);
  border-color: rgba(212, 168, 79, .28);
  color: var(--accent);
}

.danger-btn {
  background: rgba(181, 78, 63, .18);
  border-color: rgba(229, 139, 126, .24);
  color: #f0a79d;
}

main {
  position: relative;
}

.hero-copy,
.overview-panel,
.panel,
.question-card,
.result-card,
.lock-panel,
.module-picker,
.topic-link {
  background: rgba(22, 21, 20, .72);
  backdrop-filter: blur(18px);
  border-color: var(--line);
}

.hero-copy {
  background:
    linear-gradient(135deg, rgba(255, 250, 240, .11), rgba(255, 250, 240, .045)),
    rgba(22, 21, 20, .68);
}

.hero .hero-summary,
.concept-body p,
.chord-table code,
.review-meta b {
  color: var(--ink);
}

.hero .hero-summary,
.module-picker h2,
.view-title h2,
.theory-section-head h3,
.result-card h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: 0;
}

.module-picker {
  background: rgba(22, 21, 20, .72);
}

.module-tab {
  background: rgba(255, 250, 240, .055);
  border-color: var(--line);
  color: var(--ink);
}

.module-tab:hover {
  background: rgba(255, 250, 240, .09);
}

.module-tab.active,
.topic-link:hover,
.topic-link.done,
.topic-link.active {
  background: var(--accent-soft);
  border-color: rgba(212, 168, 79, .42);
}

.stat {
  background: rgba(255, 250, 240, .055);
}

.progress-bar {
  background: rgba(255, 250, 240, .12);
}

.progress-bar > div {
  background: linear-gradient(90deg, var(--accent), #e3c477);
}

.topic-link-number {
  background: var(--accent);
  color: #161514;
}

.study-badge,
.pill.warn {
  background: rgba(212, 168, 79, .14);
  color: #efca7e;
}

.study-badge.done,
.pill.ok {
  background: rgba(86, 154, 108, .18);
  color: #9dd1ad;
}

.pill {
  background: var(--accent-soft);
  color: var(--accent);
}

.chord-table-wrap,
.chord-table th,
.option,
.review-item {
  background: rgba(255, 250, 240, .055);
}

.chord-table th {
  color: var(--muted);
}

.piano-diagram-scroll,
.piano-select-wrap {
  background: rgba(17, 16, 15, .54);
  border-color: var(--line);
}

.field input,
.field textarea,
.field select,
.answer-input,
.answer-area,
select {
  background: rgba(17, 16, 15, .72);
  border-color: rgba(255, 255, 255, .19);
  color: var(--ink);
}

.field input::placeholder,
.field textarea::placeholder,
.answer-input::placeholder,
.answer-area::placeholder {
  color: rgba(255, 250, 240, .42);
}

.field input:focus,
.field textarea:focus,
.field select:focus,
.answer-input:focus,
.answer-area:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(212, 168, 79, .14);
}

.lock-banner {
  background: rgba(212, 168, 79, .14);
  border-color: rgba(212, 168, 79, .38);
}

.lock-panel {
  background: rgba(64, 91, 112, .2);
}

.option:hover {
  background: rgba(255, 250, 240, .085);
  border-color: rgba(212, 168, 79, .32);
}

.feedback.correct {
  background: rgba(86, 154, 108, .18);
  color: #b8e0c3;
}

.feedback.partial {
  background: rgba(212, 168, 79, .17);
  color: #f0d18e;
}

.feedback.wrong {
  background: rgba(181, 78, 63, .18);
  color: #f0aaa0;
}

.score-circle {
  background: conic-gradient(var(--accent) 0deg, #e3c477 var(--score-deg, 0deg), rgba(255, 250, 240, .12) var(--score-deg, 0deg));
}

.score-circle::before {
  background: #1a1816;
}

@media (max-width: 700px) {
  .jml-app-header {
    min-height: 66px;
    padding: 12px 14px;
  }

  .jml-brand {
    font-size: .9rem;
  }

  .jml-brand-mark {
    height: 34px;
    width: 34px;
  }

  .jml-lab-link {
    font-size: .8rem;
    padding: 9px 12px;
  }

  .topbar {
    position: relative;
    top: auto;
  }

  body.quiz-lock .topbar {
    top: 66px;
  }

  .brand {
    min-width: 0;
  }
}

@media print {
  body {
    background: #ffffff;
  }

  .jml-app-header,
  .page-bg,
  .topbar,
  .hero-actions,
  .quiz-toolbar,
  .nav-btn,
  button {
    display: none !important;
  }

  .question-card,
  .panel,
  .result-card {
    break-inside: avoid;
    box-shadow: none;
  }
}