:root {
  --bg: #f7f3ea;
  --ink: #202124;
  --muted: #66604f;
  --panel: #fffdf7;
  --line: #ded5c4;
  --primary: #225c5a;
  --primary-ink: #ffffff;
  --secondary: #e9dfc8;
  --accent: #e56b3f;
  --accent-soft: #f6d2c3;
  --blue: #3b6f95;
  --green: #5d7f45;
  --yellow: #d6a842;
  --kid-sky: #bfe6e2;
  --kid-grass: #7fb46b;
  --kid-leaf: #3f7f5a;
  --kid-flower: #f4b84a;
  --kid-pink: #e97880;
  --kid-purple: #7b66c6;
  --shadow: 0 18px 44px rgba(38, 32, 22, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(229, 107, 63, 0.16), transparent 34rem),
    linear-gradient(140deg, #f7f3ea 0%, #eef5ef 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-end;
  padding: 2rem clamp(1rem, 4vw, 3rem) 1rem;
}

.app-header h1,
h2,
h3,
p {
  margin-top: 0;
}

.app-header h1 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 4.75rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.7rem, 3vw, 3rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
  line-height: 1.25;
}

main {
  padding: 1rem clamp(1rem, 4vw, 3rem) 3rem;
}

.eyebrow {
  margin-bottom: 0.55rem;
  color: var(--primary);
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lead {
  max-width: 64ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

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

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem;
}

.nav-button,
.primary-action,
.secondary-action {
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.7rem 1rem;
  color: var(--ink);
  background: rgba(255, 253, 247, 0.72);
}

.nav-button.is-active,
.primary-action {
  border-color: var(--primary);
  color: var(--primary-ink);
  background: var(--primary);
}

.secondary-action {
  background: var(--secondary);
}

.kid-action,
.kid-nav {
  border-color: #8d5f11;
  color: #2e2310;
  background: #f6c85f;
}

.full-width {
  width: 100%;
}

.view {
  display: none;
}

.view.is-visible {
  display: block;
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: end;
  margin-bottom: 1rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(255, 253, 247, 0.76);
  box-shadow: var(--shadow);
}

.hero-actions,
.teach-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.dashboard-grid,
.teach-bottom,
.instrument-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.panel,
.lesson-detail,
.instrument-panel {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 1rem;
  background: var(--panel);
}

.panel-heading {
  margin-bottom: 0.75rem;
}

.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  color: var(--muted);
  background: rgba(233, 223, 200, 0.4);
  font-size: 0.88rem;
}

.checklist {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist label {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
}

.emergency-card {
  min-height: 9rem;
  margin-bottom: 1rem;
  border-left: 4px solid var(--accent);
  padding-left: 0.85rem;
}

.route-options {
  display: grid;
  gap: 0.55rem;
}

.route-option {
  width: 100%;
  text-align: left;
}

.route-option.is-selected {
  border-color: var(--primary);
  color: var(--primary-ink);
  background: var(--primary);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin: 1rem 0;
}

.lesson-layout {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: 1rem;
}

.lesson-list {
  display: grid;
  align-content: start;
  gap: 0.6rem;
}

.lesson-button {
  width: 100%;
  min-height: 4rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.75rem;
  text-align: left;
  color: var(--ink);
  background: var(--panel);
}

.lesson-button.is-selected {
  border-color: var(--primary);
  background: #dfece5;
}

.activity-list {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
}

.activity-card {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.85rem;
  background: rgba(247, 243, 234, 0.55);
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 0.75rem;
}

.route-card {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.75rem;
  background: var(--panel);
}

.teach-shell {
  display: grid;
  gap: 1rem;
}

.teach-top,
.current-activity {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 1rem;
  background: var(--panel);
}

.timer-box {
  min-width: 12rem;
  border-radius: 0.5rem;
  padding: 1rem;
  text-align: center;
  color: var(--primary-ink);
  background: var(--primary);
}

.timer-box span {
  display: block;
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.4rem, 7vw, 4rem);
  line-height: 1;
}

.timer-box small {
  display: block;
  margin-top: 0.35rem;
}

.timeline {
  display: grid;
  gap: 0.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.75rem;
  background: rgba(255, 253, 247, 0.75);
}

.timeline-item.is-current {
  border-color: var(--accent);
  background: var(--accent-soft);
}

textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.75rem;
  color: var(--ink);
  background: var(--panel);
}

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

.instrument-panel.wide {
  grid-column: 1 / -1;
}

.module-panel {
  display: grid;
  gap: 1rem;
}

.module-toolbar,
.synth-controls {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
  align-items: end;
}

.module-toolbar label,
.synth-controls label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.module-toolbar input,
.synth-controls input {
  width: 100%;
  accent-color: var(--primary);
}

.drum-machine {
  display: grid;
  gap: 0.65rem;
}

.drum-row {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 0.65rem;
  align-items: center;
}

.drum-trigger {
  min-height: 3rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  color: var(--primary-ink);
  background: var(--blue);
  font-weight: 700;
}

.drum-row:nth-child(2) .drum-trigger {
  background: var(--accent);
}

.drum-row:nth-child(3) .drum-trigger {
  background: var(--green);
}

.drum-row:nth-child(4) .drum-trigger {
  color: var(--ink);
  background: var(--yellow);
}

.drum-steps {
  display: grid;
  grid-template-columns: repeat(16, minmax(0, 1fr));
  gap: 0.35rem;
}

.drum-step {
  min-width: 0;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  padding: 0;
  color: transparent;
  background: rgba(255, 253, 247, 0.8);
}

.drum-step:nth-child(4n + 1) {
  border-color: var(--muted);
}

.drum-step.is-on {
  border-color: var(--primary);
  background: var(--primary);
}

.drum-step.is-playing {
  outline: 3px solid var(--accent);
  outline-offset: 1px;
}

.synth-keyboard {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0.45rem;
}

.synth-key {
  display: grid;
  align-content: space-between;
  min-height: 12rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.8rem;
  color: var(--ink);
  background: linear-gradient(180deg, var(--panel), var(--secondary));
  touch-action: none;
}

.synth-key strong {
  font-size: 1.1rem;
}

.synth-key span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.synth-key.is-root {
  background: linear-gradient(180deg, #f7dfd4, var(--accent-soft));
}

.synth-key.is-playing {
  border-color: var(--primary);
  color: var(--primary-ink);
  background: var(--primary);
  transform: translateY(2px);
}

.synth-key.is-playing span {
  color: var(--primary-ink);
}

.reflection-form {
  display: grid;
  gap: 1rem;
  max-width: 760px;
}

.reflection-form label {
  display: grid;
  gap: 0.35rem;
  font-weight: 700;
}

.saved-reflection {
  display: none;
  max-width: 760px;
  margin-top: 1rem;
}

.saved-reflection.is-visible {
  display: block;
}

.kids-world {
  margin: -0.25rem clamp(-1rem, -4vw, -3rem) -3rem;
  color: #24301f;
}

.kids-stage {
  position: relative;
  overflow: hidden;
  min-height: 78vh;
  padding: clamp(1rem, 4vw, 3rem);
  background:
    radial-gradient(circle at 15% 15%, rgba(255, 245, 161, 0.72), transparent 12rem),
    linear-gradient(180deg, var(--kid-sky) 0%, #dff1cf 48%, #9fcf75 100%);
}

.kids-stage::before,
.kids-stage::after {
  position: absolute;
  right: -7rem;
  bottom: -5rem;
  width: 28rem;
  height: 20rem;
  border-radius: 50%;
  background: rgba(63, 127, 90, 0.34);
  content: "";
}

.kids-stage::after {
  right: auto;
  left: -8rem;
  bottom: -6rem;
  background: rgba(43, 102, 67, 0.28);
}

.kids-stage > * {
  position: relative;
  z-index: 1;
}

.kids-sky {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.sun {
  position: absolute;
  top: 2rem;
  right: 8%;
  width: 6rem;
  height: 6rem;
  border-radius: 50%;
  background: #ffe177;
  box-shadow: 0 0 0 1.5rem rgba(255, 225, 119, 0.2);
}

.cloud {
  position: absolute;
  width: 9rem;
  height: 3rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.cloud::before,
.cloud::after {
  position: absolute;
  bottom: 0.65rem;
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 50%;
  background: inherit;
  content: "";
}

.cloud::before {
  left: 1.2rem;
}

.cloud::after {
  right: 1.4rem;
}

.cloud-one {
  top: 5rem;
  left: 10%;
}

.cloud-two {
  top: 8.5rem;
  right: 24%;
  transform: scale(0.72);
}

.kids-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 28rem);
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 1rem;
}

.guide-card,
.kids-panel,
.kids-finale {
  border: 3px solid rgba(46, 68, 38, 0.18);
  border-radius: 1.5rem;
  background: rgba(255, 253, 230, 0.82);
  box-shadow: 0 18px 50px rgba(33, 69, 42, 0.16);
}

.guide-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  min-height: 15rem;
  padding: clamp(1rem, 3vw, 2rem);
}

.guide-card h2 {
  max-width: 14ch;
  margin-bottom: 0;
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  line-height: 0.94;
}

.guide-face {
  position: relative;
  width: clamp(7rem, 16vw, 12rem);
  height: clamp(7rem, 16vw, 12rem);
  border: 0.45rem solid #5f8e4d;
  border-radius: 44% 56% 50% 50%;
  background:
    radial-gradient(circle at 50% 12%, #f9d36f 0 18%, transparent 19%),
    #87be68;
  transform: rotate(-4deg);
}

.guide-eye {
  position: absolute;
  top: 42%;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: #26301e;
}

.guide-eye:first-child {
  left: 32%;
}

.guide-eye:nth-child(2) {
  right: 32%;
}

.guide-smile {
  position: absolute;
  left: 36%;
  bottom: 30%;
  width: 28%;
  height: 16%;
  border-bottom: 0.35rem solid #26301e;
  border-radius: 50%;
}

.kids-label {
  margin-bottom: 0.5rem;
  color: #426a28;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kids-actions {
  display: grid;
  gap: 0.75rem;
}

.kids-button,
.kids-lock,
.kids-play,
.kids-small-button,
.feeling-button {
  min-height: 4.4rem;
  border: 0;
  border-radius: 1.2rem;
  padding: 1rem;
  color: #2d2815;
  background: #ffe177;
  box-shadow: inset 0 -0.35rem rgba(0, 0, 0, 0.09);
  font-weight: 800;
}

.kids-button:nth-child(2) {
  background: #f7a4a8;
}

.kids-button:nth-child(3) {
  color: #ffffff;
  background: #6c7fd1;
}

.kids-lock {
  min-height: 3.2rem;
  color: #40513a;
  background: rgba(255, 255, 255, 0.7);
  font-weight: 700;
}

.kids-button.is-active {
  outline: 4px solid rgba(36, 48, 31, 0.28);
  transform: translateY(2px);
}

.kids-panel {
  display: none;
  margin-bottom: 1rem;
  padding: clamp(1rem, 3vw, 1.5rem);
}

.kids-panel.is-visible {
  display: block;
}

.kids-panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.kids-panel h3 {
  max-width: 30ch;
  margin-bottom: 0;
  font-size: clamp(1.6rem, 3.5vw, 2.7rem);
}

.kids-beat-toolbar,
.feeling-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.kids-play {
  min-width: 9rem;
  color: #ffffff;
  background: #3f7f5a;
}

.kids-small-button {
  min-height: 3.2rem;
  background: #ffffff;
}

.kids-beat-grid {
  display: grid;
  gap: 0.7rem;
}

.creature-row {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 0.7rem;
  align-items: center;
}

.creature-trigger {
  min-height: 5.25rem;
  border: 0;
  border-radius: 1.4rem;
  color: #ffffff;
  background: var(--kid-leaf);
  box-shadow: inset 0 -0.4rem rgba(0, 0, 0, 0.12);
  font-size: 1.05rem;
  font-weight: 800;
}

.creature-row:nth-child(2) .creature-trigger {
  background: var(--kid-pink);
}

.creature-row:nth-child(3) .creature-trigger {
  background: var(--kid-purple);
}

.creature-row:nth-child(4) .creature-trigger {
  color: #2d2815;
  background: var(--kid-flower);
}

.creature-steps {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0.45rem;
}

.creature-step {
  min-width: 0;
  aspect-ratio: 1;
  border: 3px solid rgba(51, 88, 48, 0.24);
  border-radius: 50%;
  padding: 0;
  color: transparent;
  background: rgba(255, 255, 255, 0.78);
}

.creature-step.is-on {
  background: #ffe177;
  box-shadow: inset 0 0 0 0.35rem rgba(63, 127, 90, 0.22);
}

.creature-step.is-playing {
  outline: 4px solid #ffffff;
  transform: scale(1.08);
}

.flower-field,
.story-sounds {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
}

.flower-key,
.story-button {
  position: relative;
  min-height: 11rem;
  border: 0;
  border-radius: 1.4rem;
  padding: 1rem;
  overflow: hidden;
  color: #2d2815;
  background: #f7d76b;
  box-shadow: inset 0 -0.45rem rgba(0, 0, 0, 0.1);
  font-weight: 800;
}

.flower-key::before {
  display: block;
  width: 4.8rem;
  height: 4.8rem;
  margin: 0 auto 0.8rem;
  border-radius: 50% 50% 45% 45%;
  background:
    radial-gradient(circle, #fff7c8 0 22%, transparent 23%),
    radial-gradient(circle at 50% 0, #f28a94 0 32%, transparent 33%),
    radial-gradient(circle at 100% 50%, #f28a94 0 32%, transparent 33%),
    radial-gradient(circle at 50% 100%, #f28a94 0 32%, transparent 33%),
    radial-gradient(circle at 0 50%, #f28a94 0 32%, transparent 33%);
  content: "";
}

.flower-key:nth-child(2)::before {
  filter: hue-rotate(45deg);
}

.flower-key:nth-child(3)::before {
  filter: hue-rotate(95deg);
}

.flower-key:nth-child(4)::before {
  filter: hue-rotate(155deg);
}

.flower-key:nth-child(5)::before {
  filter: hue-rotate(220deg);
}

.flower-key.is-playing,
.story-button.is-playing {
  transform: translateY(4px);
  filter: brightness(1.05);
}

.story-button {
  min-height: 8rem;
  background: #d5ecbd;
}

.story-button:nth-child(2) {
  background: #c8d8ef;
}

.story-button:nth-child(3) {
  background: #e7cfb3;
}

.story-button:nth-child(4) {
  background: #f7c7c7;
}

.story-button:nth-child(5) {
  background: #ffe177;
}

.kids-finale {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, 22rem);
  gap: 1rem;
  align-items: center;
  padding: 1rem;
}

.feeling-buttons {
  margin-bottom: 0;
}

.feeling-button {
  min-height: 3.6rem;
  background: #ffffff;
}

.applause {
  border-radius: 1.25rem;
  padding: 1.2rem;
  text-align: center;
  color: #ffffff;
  background: #3f7f5a;
  font-size: 1.2rem;
  font-weight: 800;
}

@media (max-width: 900px) {
  .app-header,
  .hero-panel,
  .teach-top,
  .current-activity,
  .section-heading {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .app-header {
    display: grid;
  }

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

  .dashboard-grid,
  .teach-bottom,
  .instrument-grid,
  .lesson-layout,
  .kids-hero,
  .kids-finale {
    grid-template-columns: 1fr;
  }

  .module-toolbar,
  .synth-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .synth-keyboard {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .flower-field,
  .story-sounds {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  main,
  .app-header {
    padding-left: 0.8rem;
    padding-right: 0.8rem;
  }

  .top-nav,
  .hero-actions,
  .teach-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .nav-button,
  .primary-action,
  .secondary-action {
    padding: 0.65rem 0.7rem;
  }

  .route-grid,
  .module-toolbar,
  .synth-controls {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .drum-row {
    grid-template-columns: 1fr;
  }

  .drum-steps {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

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

  .synth-key {
    min-height: 7rem;
  }

  .guide-card,
  .kids-panel-heading,
  .creature-row {
    grid-template-columns: 1fr;
  }

  .guide-card {
    text-align: center;
  }

  .guide-face {
    margin: 0 auto;
  }

  .kids-panel-heading {
    display: block;
  }

  .creature-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .flower-field,
  .story-sounds {
    grid-template-columns: 1fr;
  }
}

@media print {
  .app-header,
  .top-nav,
  .section-heading button,
  .hero-actions,
  .teach-controls,
  #instruments,
  #teach,
  #dashboard,
  #kids,
  #reflect {
    display: none !important;
  }

  body {
    background: #ffffff;
  }

  .view,
  #lessons {
    display: block !important;
  }

  .lesson-layout {
    display: block;
  }

  .lesson-list {
    display: none;
  }

  .lesson-detail {
    border: none;
  }
}