:root {
  --bg-cream: #fbf3e4;
  --hero-dark: #1a1208;
  --accent-pink: #e63973;
  --accent-gold: #f2c14e;
  --accent-teal: #2d8c7f;
  --ink: #1a1208;
  --muted: #6b5d4a;
  --card-bg: #fff8ec;
  --border: #d6c8a8;
  --sidebar-bg: #fef6e0;
  --fred-bg: #1f2a23;
  --fred-green: #6dd99a;
  --score-bg: #1a1208;
  --standard-purple: #5a3d8a;
  --correct-green: #2d8c5a;
  --wrong-red: #c43d3d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--bg-cream);
  color: var(--ink);
  line-height: 1.6;
}

a { color: inherit; }

.top-bar {
  background: var(--hero-dark);
  color: #fff;
  padding: 14px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar .logo {
  font-weight: bold;
  font-size: 22px;
}

.top-bar .logo-link {
  color: #fff;
  text-decoration: none;
}

.top-bar .logo-link:hover {
  color: var(--accent-gold);
}

.top-bar .logo span { color: var(--accent-pink); }

.top-bar .buttons {
  display: flex;
  gap: 8px;
}

.top-bar .buttons button {
  background: #2c2114;
  color: #fff;
  border: 1px solid #3d3020;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
}

.top-bar .buttons button.preview {
  background: var(--accent-pink);
  border-color: var(--accent-pink);
}

.fred-bar {
  background: var(--fred-bg);
  color: var(--fred-green);
  padding: 14px 32px;
  display: flex;
  gap: 14px;
  align-items: center;
  border-bottom: 1px solid #2a3a2f;
}

.fred-bar .owl { font-size: 32px; }

.fred-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-gold), #d9a632);
  color: #1f2a23;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: inset 0 2px 8px rgba(255, 255, 255, 0.25);
  flex: 0 0 auto;
}

.fred-bar .name {
  color: #fff;
  font-weight: bold;
  margin-right: 8px;
}

.tools-bar {
  background: var(--bg-cream);
  padding: 12px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 14px;
  flex-wrap: wrap;
}

.tools-bar button,
.tools-bar select {
  background: #fff8ec;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
}

.tools-bar button.active {
  background: var(--accent-teal);
  color: #fff;
  border-color: var(--accent-teal);
}

.hero {
  background: var(--hero-dark);
  color: #fff;
  padding: 56px 32px;
}

.hero .breadcrumb {
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 13px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 64px);
  margin: 0 0 12px 0;
  line-height: 1.05;
}

.hero .byline {
  color: #c9b890;
  font-style: italic;
  font-size: 18px;
  margin-bottom: 24px;
  max-width: 900px;
}

.hero .tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero .tag {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid var(--accent-pink);
  color: var(--accent-pink);
}

.hero .tag.grade {
  background: var(--accent-pink);
  color: #fff;
}

.hero .tag.lexile {
  background: var(--accent-gold);
  color: var(--ink);
  border-color: var(--accent-gold);
}

.tab-nav {
  background: var(--bg-cream);
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 28px;
  overflow-x: auto;
}

.tab-nav button,
.tab-nav a {
  background: none;
  border: none;
  padding: 18px 4px;
  font-size: 17px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  text-decoration: none;
  display: inline-block;
}

.tab-nav button.active,
.tab-nav a.active {
  color: var(--accent-pink);
  border-bottom-color: var(--accent-pink);
  font-weight: bold;
}

.progress-strip {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, #fef6e0, #f5ead0);
  border-bottom: 2px solid var(--accent-pink);
  padding: 10px 32px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
}

.progress-strip .ps-stars {
  font-weight: bold;
  color: var(--accent-pink);
  font-size: 16px;
}

.progress-strip .ps-stars .num { font-size: 18px; }

.progress-strip .ps-writing strong { color: var(--accent-teal); }

.progress-strip .section-dots {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-left: auto;
}

.progress-strip .section-dot {
  padding: 4px 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--muted);
  font-size: 12px;
}

.progress-strip .section-dot.visited {
  background: #d6e8d8;
  color: var(--correct-green);
  border-color: var(--correct-green);
}

.progress-strip .section-dot.done {
  background: var(--correct-green);
  color: #fff;
  border-color: var(--correct-green);
  font-weight: bold;
}

.progress-strip .section-dot.done::before { content: "✓ "; }

.tab-content {
  display: none;
  padding: 36px 48px;
  max-width: 1120px;
  margin: 0 auto;
}

.tab-content.active { display: block; }

.section-header {
  font-size: 28px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 24px;
}

.intro-card,
.sidebar,
.set-summary,
.answer-reveal,
.review-card,
.index-card,
.footer-note {
  background: #f0e8d4;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 22px;
  margin: 18px 0;
}

.intro-card .source,
.muted-note {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.intro-card .focus {
  font-weight: bold;
  margin-top: 12px;
}

.story-card,
.vocab-card,
.mcq,
.writing-card,
.matching-card,
.sentence-card,
.discussion-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 22px;
  margin: 16px 0;
}

.beats-list {
  display: grid;
  gap: 12px;
}

.beat-card {
  background: #fff8ec;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-pink);
  border-radius: 8px;
  padding: 14px 16px;
}

.beat-card strong {
  display: block;
  color: var(--accent-pink);
  margin-bottom: 4px;
}

.context-walk {
  display: grid;
  gap: 12px;
  margin: 16px 0 24px 0;
}

.context-example {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-teal);
  border-radius: 8px;
  padding: 12px 14px;
}

.context-example strong {
  color: var(--accent-pink);
}

.story-card p,
.set-summary p,
.review-card p,
.discussion-card p { margin: 0 0 12px 0; }

.story-card p:last-child,
.set-summary p:last-child,
.review-card p:last-child,
.discussion-card p:last-child { margin-bottom: 0; }

.master-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.master-word {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 12px 14px;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}

.master-word strong {
  display: block;
  color: var(--accent-pink);
  font-size: 16px;
}

.master-word span {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

.set-summary {
  background: #fff5e0;
  border-left: 4px solid var(--accent-teal);
}

.vocab-card details { width: 100%; }

.vocab-card summary {
  cursor: pointer;
  list-style: none;
}

.vocab-card summary::-webkit-details-marker { display: none; }

.word-heading {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: baseline;
}

.word-heading .term {
  color: var(--accent-pink);
  font-weight: bold;
  font-size: 24px;
}

.word-heading .pron {
  color: var(--muted);
  font-style: italic;
  font-size: 15px;
}

.word-heading .pos {
  background: var(--accent-gold);
  color: var(--ink);
  font-size: 12px;
  font-weight: bold;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.word-body {
  margin-top: 14px;
}

.word-body .meaning {
  font-size: 17px;
  margin-bottom: 10px;
}

.word-body .example {
  background: #fff;
  border-left: 3px solid var(--accent-teal);
  padding: 10px 12px;
  border-radius: 0 4px 4px 0;
  font-style: italic;
}

.word-body textarea,
.writing-card textarea {
  width: 100%;
  min-height: 78px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  margin-top: 10px;
}

.word-actions,
.sentence-actions,
.matching-actions,
.writing-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.fm-btn,
.answer-reveal button,
.next-section,
.writing-card button,
.sentence-card button,
.matching-card button {
  font-family: inherit;
}

.fm-btn,
.writing-card button,
.sentence-card button,
.matching-card button,
.answer-reveal button {
  background: #2d5a76;
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  font-size: 13px;
}

.fm-btn.secondary,
.answer-reveal button.secondary {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--border);
}

.mini-feedback,
.mcq-fred,
.fred-response,
.matching-feedback {
  background: #2c2114;
  color: #fff;
  padding: 12px 16px;
  border-radius: 6px;
  margin-top: 12px;
  display: none;
  border-left: 4px solid var(--fred-green);
  font-size: 14px;
}

.mini-feedback.show,
.mcq-fred.show,
.fred-response.show,
.matching-feedback.show {
  display: block;
}

.sentence-card .prompt,
.writing-card .prompt { font-weight: bold; }

.sentence-input-row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.sentence-input-row input {
  flex: 1 1 240px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
}

.mcq .qtype {
  display: inline-block;
  background: var(--accent-teal);
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.mcq .standard {
  float: right;
  background: var(--standard-purple);
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: bold;
}

.mcq .qtext {
  font-weight: bold;
  margin: 8px 0 12px 0;
  font-size: 17px;
}

.mcq label {
  display: block;
  padding: 10px 14px;
  margin: 6px 0;
  border: 2px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  background: #fff;
}

.mcq label:hover { background: #f5ead0; }

.mcq.answered label { cursor: default; }

.mcq.answered label.correct {
  background: #e6f5ec;
  border-color: var(--correct-green);
  color: var(--correct-green);
  font-weight: bold;
}

.mcq.answered label.correct::after { content: " ✓"; }

.mcq.answered label.wrong {
  background: #fbe6e6;
  border-color: var(--wrong-red);
  color: var(--wrong-red);
  text-decoration: line-through;
}

.matching-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.match-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.match-item {
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-family: inherit;
}

.match-item.selected {
  border-color: var(--accent-pink);
  background: #fff1f6;
}

.match-item.done {
  border-color: var(--correct-green);
  background: #e6f5ec;
  color: var(--correct-green);
  font-weight: bold;
}

.answer-reveal {
  background: #fff5e0;
  border-left: 4px solid var(--accent-gold);
}

.discussion-card h4,
.writing-card h4,
.review-card h4,
.index-card h4 {
  margin: 0 0 8px 0;
}

.score-bar,
.footer-note {
  background: var(--score-bg);
  color: #fff;
  padding: 18px 32px;
  text-align: center;
  font-size: 18px;
  margin-top: 30px;
  border-radius: 8px;
}

.score-bar .num { color: var(--accent-gold); font-weight: bold; }

.next-section {
  background: linear-gradient(135deg, var(--accent-pink), #d62963);
  color: #fff;
  padding: 22px 28px;
  border-radius: 10px;
  margin-top: 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  transition: transform 0.18s, box-shadow 0.18s;
  border: none;
  width: 100%;
  box-shadow: 0 4px 12px rgba(230, 57, 115, 0.3);
}

.next-section:hover {
  transform: translateX(6px);
  box-shadow: 0 6px 20px rgba(230, 57, 115, 0.45);
}

.next-section .ns-label {
  font-size: 18px;
  font-weight: bold;
  text-align: left;
}

.next-section .ns-sub {
  font-size: 13px;
  opacity: 0.9;
  margin-top: 4px;
}

.next-section .ns-arrow { font-size: 32px; }

.bottom-bar {
  background: var(--hero-dark);
  color: #fff;
  padding: 12px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  bottom: 0;
  font-size: 14px;
  gap: 12px;
}

.bottom-bar button.complete {
  background: var(--accent-gold);
  color: var(--ink);
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  font-family: inherit;
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.show { display: flex; }

.modal {
  background: #fff;
  border-radius: 12px;
  max-width: 560px;
  width: 100%;
  padding: 28px 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  max-height: 90vh;
  overflow-y: auto;
}

.modal h3 {
  margin: 0 0 8px 0;
  font-size: 24px;
}

.modal .modal-intro { color: var(--muted); margin: 0 0 20px 0; }

.modal .field { margin-bottom: 16px; }

.modal .field label {
  display: block;
  font-weight: bold;
  margin-bottom: 6px;
  font-size: 14px;
}

.modal .field input,
.modal .field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 15px;
}

.modal .field textarea {
  min-height: 80px;
  resize: vertical;
}

.modal .preview-card {
  background: #fff8ec;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  margin: 10px 0 16px 0;
  font-size: 14px;
}

.modal .preview-card strong { color: var(--accent-pink); }

.modal .account-hint {
  background: #f0e8d4;
  border-radius: 6px;
  padding: 10px 14px;
  margin: 14px 0;
  font-size: 13px;
  color: var(--muted);
}

.modal .modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

.modal .modal-actions button {
  padding: 10px 18px;
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  font-weight: bold;
}

.modal .btn-cancel {
  background: #eee;
  border: 1px solid #ccc;
  color: var(--ink);
}

.modal .btn-primary {
  background: #1a73e8;
  color: #fff;
  border: 1px solid #1558b8;
}

.toast {
  position: fixed;
  bottom: 80px;
  right: 30px;
  background: var(--correct-green);
  color: #fff;
  padding: 14px 20px;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  display: none;
  z-index: 10000;
  max-width: 340px;
  font-size: 14px;
}

.toast.show { display: block; }

.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.play-link {
  display: block;
  text-decoration: none;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}

.play-link strong {
  display: block;
  color: var(--accent-pink);
  font-size: 20px;
  margin-bottom: 8px;
}

.play-link span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 820px) {
  .top-bar,
  .fred-bar,
  .tools-bar,
  .hero,
  .tab-nav,
  .progress-strip,
  .bottom-bar { padding-left: 18px; padding-right: 18px; }

  .tab-content { padding: 24px 18px; }

  .matching-grid { grid-template-columns: 1fr; }

  .word-heading {
    flex-direction: column;
    align-items: flex-start;
  }

  .bottom-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}