:root {
  --bg-top: #fff4d9;
  --bg-bottom: #d4f0ff;
  --card: #fffef8;
  --ink: #163041;
  --soft-ink: #355465;
  --blue-consonant: #1f7aff;
  --red-vowel: #ff5f6d;
  --green-digram: #71b62b;
  --ok: #1a8f39;
  --error: #cc2434;
  --focus: #ffad32;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Fredoka", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 15%, #ffe58f 0 16%, transparent 17%),
    radial-gradient(circle at 90% 78%, #9ed8ff 0 18%, transparent 19%),
    linear-gradient(165deg, var(--bg-top), var(--bg-bottom));
}

.stage {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 1.5rem;
}

.card {
  width: min(920px, 100%);
  background: var(--card);
  border: 4px solid #ffffff;
  border-radius: 28px;
  padding: clamp(1rem, 2.5vw, 2rem);
  box-shadow: 0 20px 60px rgba(25, 78, 110, 0.2);
  animation: pop-in 550ms ease both;
}

.kicker {
  margin: 0;
  font-family: "Baloo 2", "Comic Sans MS", cursive;
  font-weight: 700;
  color: #ff8a1f;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0.2rem 0 0;
  font-family: "Baloo 2", "Comic Sans MS", cursive;
  font-size: clamp(2rem, 6vw, 3.2rem);
  line-height: 1;
  color: #0d6085;
}

.subtitle {
  margin: 0.65rem 0 1.2rem;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  color: var(--soft-ink);
}

.word-panels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.word-panel {
  background: #f7fcff;
  border-radius: 16px;
  padding: 0.75rem 1rem;
  border: 2px solid #dff1ff;
}

.word-panel h2 {
  margin: 0;
  font-family: "Baloo 2", "Comic Sans MS", cursive;
  font-size: 1.05rem;
  color: #3079a0;
}

.word-line {
  margin: 0.35rem 0 0;
  font-family: "Baloo 2", "Comic Sans MS", cursive;
  font-size: clamp(1.9rem, 7vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: 0.02em;
  display: flex;
  flex-wrap: wrap;
  gap: 0.04em;
}

.token {
  transition: transform 180ms ease, filter 180ms ease;
  will-change: transform;
}

.token.consonant {
  color: var(--blue-consonant);
}

.token.vowel {
  color: var(--red-vowel);
}

.token.digram {
  color: var(--green-digram);
}

.token.done {
  text-shadow: 0 0 0 rgba(0, 0, 0, 0);
}

.token.current {
  transform: translateY(-2px) scale(1.06);
  filter: drop-shadow(0 6px 8px rgba(0, 0, 0, 0.15));
}

.token.wrong {
  color: var(--error) !important;
}

.input-label {
  display: block;
  margin: 0.6rem 0 0.35rem;
  font-family: "Baloo 2", "Comic Sans MS", cursive;
  font-size: 1.1rem;
}

.difficulty {
  margin: 0.7rem 0 0.35rem;
  padding: 0.65rem 0.8rem;
  border-radius: 14px;
  background: #f3faff;
  border: 2px solid #d9eefb;
}

.difficulty-label {
  margin: 0;
  color: var(--soft-ink);
  font-size: 1rem;
}

.difficulty-controls {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.45rem;
}

.difficulty-btn {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 2px solid #acd3ec;
  background: #ffffff;
  color: #1f6c95;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
}

.difficulty-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.difficulty-range {
  flex: 1;
  accent-color: #ff9c35;
}

.typing-input {
  width: 100%;
  border: 3px solid #b8ddf7;
  border-radius: 14px;
  padding: 0.75rem 0.95rem;
  font-size: 1.35rem;
  font-family: "Fredoka", "Trebuchet MS", sans-serif;
  color: var(--ink);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.typing-input:focus {
  outline: none;
  border-color: var(--focus);
  box-shadow: 0 0 0 4px rgba(255, 173, 50, 0.24);
}

.hint,
.status {
  margin: 0.65rem 0 0;
  color: #3f6071;
  font-size: 1rem;
}

.status.ok {
  color: var(--ok);
  font-weight: 600;
}

.status.error {
  color: var(--error);
  font-weight: 600;
}

.next-btn {
  margin-top: 0.95rem;
  border: none;
  border-radius: 999px;
  padding: 0.7rem 1.1rem;
  font-size: 1rem;
  font-family: "Baloo 2", "Comic Sans MS", cursive;
  font-weight: 700;
  background: linear-gradient(90deg, #ff8e4f, #ffbe3d);
  color: #1d3140;
  cursor: pointer;
  box-shadow: 0 9px 18px rgba(243, 143, 39, 0.33);
}

.next-btn:active {
  transform: translateY(1px);
}

@media (min-width: 760px) {
  .word-panels {
    grid-template-columns: 1fr 1fr;
  }
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}