@import url("https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;500;600;700;800&family=Fredoka:wght@400;500;600;700&family=Nunito+Sans:wght@400;700;900&display=swap");

:root {
  color-scheme: light;
  --ink: #1d2528;
  --muted: #617077;
  --paper: #fffaf1;
  --paper-strong: #ffffff;
  --line: rgba(29, 37, 40, 0.15);
  --accent: #0f766e;
  --accent-dark: #0b4f4a;
  --wrong: #a33a2d;
  --shadow: 0 24px 70px rgba(17, 24, 28, 0.26);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #223136;
  color: var(--ink);
  font-family: "Fredoka", system-ui, sans-serif;
}

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

button {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-family: "Nunito Sans", "Fredoka", system-ui, sans-serif;
  font-weight: 750;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.choice:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.45);
  outline-offset: 3px;
}

.app {
  min-height: 100vh;
  padding: clamp(14px, 3vw, 36px);
  display: grid;
  place-items: center;
}

.stage {
  position: relative;
  width: min(1120px, 100%);
  min-height: min(820px, calc(100vh - 28px));
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: #243339;
  box-shadow: var(--shadow);
}

.scene {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(180deg, rgba(11, 21, 23, 0.14), rgba(11, 21, 23, 0.6)),
    var(--story-background);
  background-position: center;
  background-size: cover;
}

.topbar,
.controls,
.quiz-panel,
.results-panel,
.start-panel {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(18px, 3vw, 34px);
  color: #ffffff;
}

.eyebrow {
  margin: 0 0 5px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 720px;
  font-family: "Baloo 2", system-ui, sans-serif;
  font-size: clamp(1.55rem, 4vw, 3rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.progress {
  width: min(230px, 34vw);
  min-width: 150px;
  padding-top: 8px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.82rem;
  font-weight: 700;
  text-align: right;
}

.progress-track {
  height: 8px;
  margin-top: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.32);
}

.progress-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: #f3d27a;
  transition: width 180ms ease;
}

.quiz-panel,
.results-panel,
.start-panel {
  width: min(760px, calc(100% - 32px));
  margin: clamp(28px, 5vh, 70px) auto 92px;
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.94);
  box-shadow: 0 18px 46px rgba(12, 20, 22, 0.24);
  backdrop-filter: blur(12px);
}

.results-panel,
.start-panel {
  margin-top: clamp(70px, 13vh, 150px);
  text-align: center;
}

.question-media {
  margin: 0 0 18px;
  overflow: hidden;
  border-radius: 8px;
  background: #dce8e4;
  aspect-ratio: 16 / 9;
}

.question-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.quiz-label {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.quiz-panel h2,
.results-panel h2,
.start-panel h2 {
  margin: 0;
  font-family: "Baloo 2", system-ui, sans-serif;
  font-size: clamp(1.12rem, 2.4vw, 1.55rem);
  line-height: 1.24;
  letter-spacing: 0;
}

.results-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-weight: 650;
}

.language-heading {
  margin: 18px 0 0;
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 850;
}

.language-choice {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-top: 8px;
  padding: 4px;
  border: 1px solid rgba(15, 118, 110, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.58);
}

.language-button {
  min-height: 40px;
  padding: 8px 12px;
  background: transparent;
  color: var(--accent-dark);
  box-shadow: none;
}

.language-button.is-selected {
  background: var(--accent);
  color: #ffffff;
}

.video-invite {
  display: grid;
  gap: 12px;
  justify-items: center;
  margin: 18px 0 0;
  color: var(--muted);
  font-weight: 650;
}

.video-invite a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 16px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 750;
  text-decoration: none;
}

.video-invite a:hover {
  background: var(--accent-dark);
}

.answer-area {
  margin-top: 22px;
}

.choices,
.matching-list,
.sequence-form,
.text-answer-form,
.writing-form {
  display: grid;
  gap: 10px;
}

.choice {
  width: 100%;
  min-height: 54px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  background: var(--paper-strong);
  color: var(--ink);
  text-align: left;
  transition:
    border-color 140ms ease,
    background 140ms ease,
    transform 140ms ease;
}

.choice:hover:not(:disabled) {
  border-color: rgba(15, 118, 110, 0.5);
  transform: translateY(-1px);
}

.choice.is-correct {
  border-color: var(--accent);
  background: #e7f6ef;
}

.choice.is-wrong {
  border-color: var(--wrong);
  background: #fff0ec;
}

.text-answer-form,
.writing-form {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  padding: 10px 12px;
}

textarea {
  resize: vertical;
}

.text-answer-form button,
.writing-form button,
.matching-list button,
.sequence-form button {
  min-height: 44px;
  padding: 11px 16px;
  background: var(--accent);
  color: #ffffff;
}

.matching-list label,
.sequence-form label {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, 220px);
  gap: 12px;
  align-items: center;
  color: var(--ink);
  font-weight: 650;
}

.sequence-form label {
  grid-template-columns: 72px minmax(0, 1fr);
}

.feedback {
  min-height: 24px;
  margin: 16px 0 0;
  color: var(--muted);
  font-weight: 650;
}

.feedback.error {
  color: var(--wrong);
}

.score-text {
  margin: 18px 0 0;
  color: var(--accent-dark);
  font-size: clamp(1.35rem, 3vw, 2.1rem);
  font-weight: 850;
}

.controls {
  position: absolute;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 34px);
  left: clamp(16px, 3vw, 34px);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.controls button {
  min-width: 132px;
  min-height: 48px;
  padding: 12px 18px;
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(15, 76, 74, 0.24);
}

.controls button:hover:not(:disabled),
.text-answer-form button:hover:not(:disabled),
.writing-form button:hover:not(:disabled),
.matching-list button:hover:not(:disabled),
.sequence-form button:hover:not(:disabled) {
  background: var(--accent-dark);
}

.controls .secondary {
  border: 1px solid rgba(255, 255, 255, 0.62);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: none;
}

.controls .secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.26);
}

button:disabled {
  cursor: default;
  opacity: 0.48;
}

.is-hidden {
  display: none;
}

@media (max-width: 720px) {
  .stage {
    min-height: calc(100vh - 28px);
  }

  .topbar {
    display: grid;
  }

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

  .quiz-panel,
  .results-panel,
  .start-panel {
    width: calc(100% - 24px);
    margin-bottom: 96px;
  }

  .text-answer-form,
  .writing-form,
  .matching-list label {
    grid-template-columns: 1fr;
  }

  .controls button {
    min-width: 0;
    flex: 1;
  }
}