:root {
  --bg: #eee;
  --card: #ffffff;
  --border: #111;

  --page-max: 1120px;
  --gap: 22px;

  --panel-pad: 18px;
  --panel-radius: 16px;

  --btn-h: 50px;
  --btn-font: 18px;
  --btn-border: 3px;
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg);
  font-family: sans-serif;
  text-align: center;
  margin: 0;
  padding: 16px 12px 40px;
}

h1 {
  color: blue;
  font-size: clamp(28px, 4vw, 48px);
  margin: 14px 0 18px;
}

.container {
  width: min(var(--page-max), 96vw);
  margin: 0 auto;
}

.top-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin: 0 auto 16px;
  flex-wrap: wrap;
}

#textInput {
  flex: 1 1 520px;
  min-width: 260px;
  max-width: 760px;
  height: 52px;
  font-size: 22px;
  text-align: center;
}

button {
  height: var(--btn-h);
  font-size: var(--btn-font);
  border: var(--btn-border) solid var(--border);
  background: white;
  cursor: pointer;
  transition: transform 0.08s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border-radius: 10px;
  user-select: none;
}

button:active {
  transform: translateY(3px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.speak {
  background: #ff4444;
  color: white;
}

.utility {
  background: #f6f6f6;
}

.main-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  align-items: start;
}

@media (max-width: 920px) {
  .main-grid {
    grid-template-columns: 1fr;
  }

  .play-wrapper {
    grid-column: auto;
  }
}

.panel {
  background: var(--card);
  border: 2px solid rgba(0, 0, 0, 0.18);
  border-radius: var(--panel-radius);
  padding: var(--panel-pad);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);

  display: flex;
  flex-direction: column;
  min-width: 0;
}

.panel-title {
  margin: 0 0 12px;
  font-size: 18px;
  opacity: 0.9;
}

.panel-body {
  min-width: 0;
}

.kana-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.kana-row {
  display: flex;
  gap: 8px;
  justify-content: center;
  width: 100%;
  flex-wrap: nowrap;
}

.kana-row button {
  width: 54px;
  padding: 0;
  white-space: nowrap;
}

.template-body {
  display: flex;
  flex-direction: column;
  gap: 10px;

  width: 100%;
  margin: 0;
  overflow: auto;

  padding-right: 6px;
  min-width: 0;
}

.template-body button {
  width: 100%;

  padding: 0 14px;
  line-height: 1.15;

  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.play-wrapper {
  grid-column: 1 / -1;
  margin-top: 2px;
}

.play-area {
  width: 100%;
  height: 260px;
  border: 3px dashed rgba(0, 0, 0, 0.28);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.4));
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.toy {
  position: absolute;
  width: 140px;
  height: auto;
  cursor: grab;
  user-select: none;
  touch-action: none;
  -webkit-user-drag: none;
}

.toy:active {
  cursor: grabbing;
}

.hint {
  margin: 10px 0 0;
  font-size: 14px;
  opacity: 0.75;
}