@import url("https://fonts.googleapis.com/css2?family=Baloo+2:wght@600;700;800&family=Nunito:wght@400;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap");

:root {
  --bg: #fbf3e3;
  --panel: #ffffff;
  --panel-alt: #fff8ea;
  --text: #22301f;
  --muted: #5e6b5a;
  --muted-soft: #8b9285;
  --primary: #2f6b4f;
  --primary-dark: #1e4a35;
  --primary-soft: #eaf3ec;
  --accent: #e2703a;
  --accent-dark: #c1552a;
  --accent-soft: #fbeae0;
  --gold: #e3a83b;
  --gold-dark: #c1801e;
  --gold-soft: #fdf1dc;
  --border: #e7dcc3;
  --shadow: rgba(34, 48, 31, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
}

body {
  font-family: "Nunito", ui-rounded, "Trebuchet MS", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

h1,
h2,
h3,
.headline {
  font-family: "Baloo 2", ui-rounded, "Trebuchet MS", sans-serif;
  font-weight: 800;
  margin: 0;
  color: var(--text);
}

a {
  color: var(--primary);
}
a:hover {
  color: var(--primary-dark);
}

p {
  margin: 0;
}

button {
  font-family: inherit;
}

/* ---------- Site chrome ---------- */

.site-header {
  padding: 20px clamp(16px, 4vw, 40px);
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-brand-mark {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-brand-name {
  font-family: "Baloo 2", sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
}

.site-shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px) 64px;
}

/* ---------- Icons ---------- */

.icon {
  flex-shrink: 0;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: 12px;
  font-weight: 800;
  font-size: 14px;
  padding: 11px 20px;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #ffffff;
}

.btn-accent {
  background: var(--accent);
  color: #ffffff;
}
.btn-accent:hover {
  background: var(--accent-dark);
  color: #ffffff;
}

.btn-ghost {
  background: #ffffff;
  color: var(--muted);
  border: 1.5px solid var(--border);
}

.btn-disabled {
  background: var(--border);
  color: var(--muted-soft);
  cursor: default;
}

.next-btn {
  align-self: flex-end;
}

.step-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.step-footer.is-end {
  justify-content: flex-end;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: #ffffff;
  color: var(--muted);
  font-weight: 800;
  font-size: 14px;
  padding: 11px 18px 11px 14px;
  cursor: pointer;
}

.back-btn:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
}

/* ---------- Landing page ---------- */

.landing-hero {
  padding: 40px 0 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 620px;
}

.landing-hero p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.mission-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.mission-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--panel);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 8px 20px var(--shadow);
  text-decoration: none;
  color: inherit;
}

.mission-card.is-live {
  border: 1.5px solid transparent;
}
.mission-card.is-live:hover {
  border-color: var(--primary);
}

.mission-card.is-disabled {
  background: var(--panel-alt);
  border: 1.5px dashed var(--border);
  cursor: default;
}

.mission-card-tag {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.mission-card.is-disabled .mission-card-tag {
  background: var(--gold-soft);
  color: var(--gold-dark);
}

.mission-card h3 {
  font-size: 20px;
}

.mission-card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.mission-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

.mission-card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  border-radius: 8px;
  background: var(--bg);
}

.mission-card-cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  font-size: 13px;
  color: var(--primary);
}

.mission-card.is-disabled .mission-card-cta {
  color: var(--muted-soft);
}

/* ---------- Mission hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  margin: 24px clamp(16px, 4vw, 40px) 0;
  padding: 36px clamp(20px, 5vw, 44px);
  background: var(--primary);
  border-radius: 28px;
}

.hero-glow {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(227, 168, 59, 0.35) 0%, rgba(227, 168, 59, 0) 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---------- Hero margin decoration + page mascot (wide screens only) ---------- */

.hero-wrap {
  position: relative;
}

.side-decor,
.page-mascot {
  display: none;
}

@media (min-width: 1300px) {
  .hero-wrap {
    max-width: 1300px;
    margin: 0 auto;
  }

  .hero {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
  }

  .side-decor {
    display: block;
    position: fixed;
    top: 0;
    height: 100vh;
    width: calc(50% - 470px);
    min-width: 130px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
  }

  .side-decor-left {
    left: 0;
  }

  .side-decor-right {
    right: 0;
    transform: scaleX(-1);
  }

  .page-mascot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 20;
  }

  .page-mascot-bubble {
    display: none;
    background: var(--panel);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 6px 12px;
    font-size: 11.5px;
    font-weight: 800;
    color: var(--muted);
    white-space: nowrap;
    box-shadow: 0 6px 16px var(--shadow);
  }

  .page-mascot-bubble.is-visible {
    display: block;
  }
}

.eyebrow {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  color: var(--gold-soft);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(28px, 4.5vw, 42px);
  line-height: 1.1;
  color: #ffffff;
}

.hero-text {
  max-width: 620px;
  font-size: 16px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.86);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
}

.hero-meta span {
  padding: 6px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.14);
}

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

.hero-badges span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  font-weight: 700;
  font-size: 13px;
}

.learn-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 8px 20px;
}

.learn-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13.5px;
  color: var(--text);
  line-height: 1.4;
}

.progress-card {
  margin-top: 6px;
  background: var(--panel-alt);
  border-radius: 18px;
  padding: 18px 20px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.progress-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 13px;
}

.progress-top span:first-child {
  font-weight: 800;
  color: var(--text);
}
.progress-top span:last-child {
  font-weight: 700;
  color: var(--muted);
}

.progress-track {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.progress-line {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 50%;
  height: 3px;
  background: var(--border);
  transform: translateY(-50%);
  border-radius: 2px;
}

.progress-line-fill {
  position: absolute;
  left: 12px;
  top: 50%;
  height: 3px;
  background: var(--primary);
  transform: translateY(-50%);
  border-radius: 2px;
  transition: width 0.25s ease;
}

.progress-dot {
  position: relative;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--panel-alt);
  border: 3px solid var(--border);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
  cursor: pointer;
}

.progress-dot:hover {
  transform: scale(1.25);
  border-color: var(--primary);
}

.progress-dot.is-current {
  width: 22px;
  height: 22px;
  background: var(--primary);
  border: 3px solid var(--panel-alt);
  box-shadow: 0 0 0 2px var(--primary);
}

.progress-dot.is-done {
  background: var(--primary);
  border-color: var(--primary);
}

/* ---------- Mission shell / steps ---------- */

.mission-shell {
  max-width: 900px;
  margin: 28px auto 0;
  padding: 0 clamp(16px, 4vw, 40px) 80px;
  display: flex;
  flex-direction: column;
}

.step-card {
  display: none;
  flex-direction: column;
  gap: 18px;
  background: var(--panel);
  border-radius: 22px;
  padding: clamp(22px, 4vw, 32px);
  box-shadow: 0 8px 20px var(--shadow);
}

.step-card.active {
  display: flex;
}

.intro-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--panel);
  border-radius: 22px;
  padding: clamp(22px, 4vw, 32px);
  box-shadow: 0 8px 20px var(--shadow);
  margin-bottom: 18px;
}

.intro-card h2 {
  font-size: 22px;
}

.intro-card .learn-list {
  margin-top: 4px;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.step-number {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.step-header h2 {
  font-size: 22px;
}

.step-copy {
  font-size: 16.5px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.65;
}

.step-copy strong {
  color: var(--text);
}

/* ---------- Callouts ---------- */

.callout {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  border-radius: 18px;
}

.callout-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.callout-body h3 {
  font-size: 16px;
}

.callout-body p {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
}

.callout-gold {
  background: var(--gold-soft);
  border: 1.5px solid var(--gold);
}
.callout-gold .callout-body p strong {
  color: var(--gold-dark);
}

.callout-tip {
  background: var(--bg);
  border: 1.5px dashed var(--border);
}

.callout-primary {
  background: var(--primary-soft);
  border: 1.5px solid var(--primary);
}

details.callout summary {
  cursor: pointer;
  font-family: "Baloo 2", sans-serif;
  font-weight: 800;
  font-size: 15px;
  color: var(--text);
  list-style: revert;
}

details.callout[open] summary {
  margin-bottom: 10px;
}

details.callout p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- Choice grid ---------- */

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

.choice-grid.compact .choice-btn {
  padding: 10px 14px;
  font-size: 13.5px;
}

.choice-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 2px solid var(--border);
  background: #ffffff;
  color: var(--text);
  font-weight: 500;
  font-size: 15px;
  text-align: left;
  cursor: pointer;
}

.choice-btn.selected {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.choice-btn.is-correct {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.choice-btn.is-wrong {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.choice-btn .result-icon {
  display: none;
}
.choice-btn.is-correct .result-icon.icon-check,
.choice-btn.is-wrong .result-icon.icon-x {
  display: inline-flex;
}

.choice-grid + .check-btn {
  margin-top: 12px;
}

.check-btn {
  align-self: flex-start;
  border: none;
  border-radius: 12px;
  padding: 10px 22px;
  font-weight: 800;
  font-size: 14px;
  background: var(--border);
  color: var(--muted-soft);
  cursor: default;
}

.check-btn.is-ready {
  background: var(--primary);
  color: #ffffff;
  cursor: pointer;
}

.feedback-box {
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--panel-alt);
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
}

.feedback-box.is-correct {
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.feedback-box.is-wrong {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

/* ---------- Mini / investigation cards ---------- */

.mini-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
}

.mini-card h3 {
  font-size: 13px;
  font-weight: 800;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mini-card p {
  font-size: 14px;
  color: var(--text);
  font-weight: 700;
}

.notebook-label {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.notebook-textarea {
  width: 100%;
  min-height: 80px;
  resize: vertical;
  border-radius: 12px;
  border: 1.5px solid var(--border);
  background: #ffffff;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 13.5px;
  color: var(--text);
}

.notebook-textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.notebook-textarea::placeholder {
  color: var(--muted-soft);
}

/* ---------- Concept visuals (wave / flow / comparison diagrams) ---------- */

.concept-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 18px 16px;
}

.concept-visual > svg {
  width: 100%;
  height: auto;
  display: block;
}

.concept-visual-caption {
  font-size: 12.5px;
  color: var(--muted);
  font-weight: 700;
  text-align: center;
  max-width: 520px;
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.compare-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  text-align: center;
}

.compare-panel.is-no {
  border-color: var(--accent);
}
.compare-panel.is-yes {
  border-color: var(--primary);
}

.compare-badge {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.compare-panel.is-no .compare-badge {
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.compare-panel.is-yes .compare-badge {
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.compare-panel p {
  font-size: 13px;
  color: var(--muted);
  font-weight: 700;
}

.stem-steps {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 16px;
}

.stem-steps .stem-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.stem-steps span {
  font-size: 10.5px;
  font-weight: 800;
  color: var(--muted-soft);
}

/* ---------- Icon rows / diagrams ---------- */

.icon-row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 4px;
}

.icon-row-line {
  position: absolute;
  left: 34px;
  right: 34px;
  top: 34px;
  height: 2px;
  background-image: linear-gradient(to right, var(--border) 50%, transparent 0%);
  background-size: 12px 2px;
  background-repeat: repeat-x;
}

.icon-node {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.icon-badge {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--gold);
  background: var(--gold-soft);
}

.icon-badge.tone-primary {
  border-color: var(--primary);
  background: var(--primary-soft);
}
.icon-badge.tone-accent {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.icon-node span {
  font-size: 12px;
  font-weight: 800;
  color: var(--muted);
}

.icon-arrow {
  color: var(--muted-soft);
}

/* ---------- Wavelength spectrum ---------- */

.spectrum-row {
  display: flex;
  gap: 6px;
}

.spectrum-chip {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 6px;
  border-radius: 12px;
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 800;
}

.spectrum-chip span:last-child {
  font-weight: 700;
  font-size: 10.5px;
  opacity: 0.9;
}

/* ---------- Recap checklist ---------- */

.recap-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.recap-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.5;
}

.recap-list .icon {
  margin-top: 2px;
  color: var(--primary);
}

.recap-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: recap-counter;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.recap-steps li {
  counter-increment: recap-counter;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--text);
  line-height: 1.5;
}

.recap-steps li::before {
  content: counter(recap-counter);
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reveal-banner {
  align-self: flex-start;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #ffffff;
  font-family: "Baloo 2", sans-serif;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.03em;
}

/* ---------- Sequence builder ---------- */

.sequence-builder {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sequence-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 44px;
}

.sequence-chip {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1.5px solid var(--border);
  background: #ffffff;
  color: var(--text);
  font-weight: 700;
  font-size: 13.5px;
  cursor: pointer;
}

.sequence-slots {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sequence-slot {
  min-height: 44px;
  border-radius: 12px;
  border: 1.5px dashed var(--border);
  background: var(--bg);
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 10px;
  font-size: 13.5px;
  color: var(--muted-soft);
}

.sequence-slot-index {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--panel);
  border: 1.5px solid var(--border);
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}

.sequence-slot.is-filled {
  border-style: solid;
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
}

.sequence-slot.is-correct {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.sequence-slot.is-incorrect {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

/* ---------- Tabs ---------- */

.tab-row {
  display: flex;
  gap: 8px;
  padding: 4px;
  background: var(--bg);
  border-radius: 12px;
  align-self: flex-start;
}

.tab-btn {
  border: none;
  background: transparent;
  padding: 8px 16px;
  border-radius: 9px;
  font-weight: 800;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
}

.tab-btn.is-active {
  background: #ffffff;
  color: var(--primary-dark);
  box-shadow: 0 2px 6px var(--shadow);
}

.tab-panel {
  display: none;
  flex-direction: column;
  gap: 16px;
}

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

/* ---------- Code console ---------- */

.code-console {
  background: #1b2a20;
  border-radius: 16px;
  overflow: hidden;
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: #16221a;
}

.code-toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.code-toolbar-left span:first-child {
  color: #c9d8cb;
  font-size: 12px;
  font-weight: 700;
}

.lang-pill {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--primary);
  color: #ffffff;
  font-size: 10px;
  font-weight: 800;
}

.console-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 9px;
  border: none;
  background: var(--gold);
  color: #1b2a20;
  font-weight: 800;
  font-size: 12px;
  cursor: pointer;
}

.code-editor-shell {
  display: flex;
  padding: 16px;
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  font-size: 13px;
  line-height: 1.7;
  position: relative;
}

.line-numbers {
  color: #4c6b54;
  text-align: right;
  padding-right: 14px;
  user-select: none;
  white-space: pre;
}

.code-editor-wrapper {
  position: relative;
  flex: 1;
}

#mission-code {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 110px;
  resize: vertical;
  background: transparent;
  color: transparent;
  caret-color: #e8eee6;
  border: none;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  white-space: pre;
  overflow: auto;
}

#mission-code:focus {
  outline: none;
}

.code-highlight {
  position: absolute;
  inset: 0;
  margin: 0;
  color: #e8eee6;
  pointer-events: none;
  white-space: pre;
  overflow: hidden;
}

.token-keyword {
  color: #7fb89a;
}
.token-builtin {
  color: #f2b57e;
}
.token-string {
  color: #e3a83b;
}
.token-number {
  color: #c7a9f2;
}
.token-comment {
  color: #5c7862;
}

.code-output {
  margin: 0;
  padding: 14px 16px;
  border-top: 1px solid #2a3a2e;
  color: #6b7a6e;
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  font-size: 12.5px;
  line-height: 1.6;
  white-space: pre-line;
}

.code-output.has-run {
  color: #b7e4c7;
}

.code-static {
  margin: 0;
  padding: 16px;
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  font-size: 13px;
  line-height: 1.7;
  color: #e8eee6;
  white-space: pre;
  overflow-x: auto;
}

.code-walk-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 14px;
}

.code-inline {
  display: inline-block;
  background: #1b2a20;
  color: #e8eee6;
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  font-size: 12.5px;
  line-height: 1.6;
  padding: 8px 12px;
  border-radius: 8px;
  white-space: pre;
  width: fit-content;
}

.code-walk-item p {
  font-size: 14.5px;
  color: var(--text);
  font-weight: 600;
  line-height: 1.6;
}

/* ---------- Challenge box ---------- */

.challenge-box {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.challenge-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.challenge-head h3 {
  font-size: 15px;
}

.challenge-head span {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted-soft);
}

.challenge-hint {
  font-size: 13px;
  color: var(--muted-soft);
  font-style: italic;
}

.challenge-hint.is-hidden {
  display: none;
}

.challenge-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.challenge-actions .check-btn,
.challenge-actions .hint-btn {
  padding: 7px 16px;
  font-size: 12.5px;
}

.hint-btn {
  border-radius: 9px;
  border: 1.5px solid var(--border);
  background: #ffffff;
  color: var(--muted);
  font-weight: 700;
  cursor: pointer;
}

.reveal-btn {
  align-self: flex-start;
  border-radius: 10px;
  border: 1.5px dashed var(--gold);
  background: var(--gold-soft);
  color: var(--gold-dark);
  font-weight: 800;
  font-size: 12.5px;
  padding: 8px 14px;
  cursor: pointer;
}

.reveal-btn:hover {
  background: var(--gold);
  color: #ffffff;
}

.challenge-icon-btn {
  margin-left: auto;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  border: none;
  background: var(--accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.challenge-feedback {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted-soft);
}

.challenge-feedback.is-correct {
  color: var(--primary-dark);
}

.is-hidden {
  display: none !important;
}

/* ---------- Responsive ---------- */

@media (max-width: 600px) {
  .hero {
    margin: 16px 12px 0;
    padding: 28px 20px;
  }

  .mission-shell {
    padding: 0 12px 60px;
  }

  .step-card {
    padding: 20px;
  }

  .icon-badge {
    width: 52px;
    height: 52px;
  }

  .spectrum-row {
    flex-wrap: wrap;
  }

  .spectrum-chip {
    flex: 1 1 30%;
  }
}

/* ---------- Mascot ---------- */

@keyframes q-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes q-hop {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  30% { transform: translateY(-11px) rotate(-4deg); }
  60% { transform: translateY(0) rotate(4deg); }
}
@keyframes q-tilt {
  0%, 100% { transform: rotate(-3deg); }
  50% { transform: rotate(3deg); }
}
@keyframes q-droop {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(4px) rotate(-2deg); }
}
@keyframes q-sparkle {
  0%, 100% { opacity: 0.35; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.15); }
}
@keyframes q-glass {
  0%, 100% { transform: translateX(-5px) rotate(-8deg); }
  50% { transform: translateX(5px) rotate(8deg); }
}

.mascot-idle { animation: q-bob 2.6s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.mascot-celebrate { animation: q-hop 1.1s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.mascot-curious { animation: q-tilt 3s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.mascot-sad { animation: q-droop 3.2s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.sparkle { animation: q-sparkle 1.3s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
.glass-sweep { animation: q-glass 2s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }