:root {
  --color-bg: #fff6e9;
  --color-sky: #cdeeff;
  --color-primary: #ff8a65;
  --color-primary-dark: #f4703f;
  --color-secondary: #4fb0e8;
  --color-wait: #ffc857;
  --color-unsure: #b39ddb;
  --color-text: #4a3b30;
  --color-card: #ffffff;
  --color-border: #ffd9b3;
  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow-soft: 0 8px 20px rgba(180, 120, 60, 0.15);
  font-size: 18px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: linear-gradient(180deg, var(--color-sky) 0%, var(--color-bg) 45%);
  font-family: "Hiragino Maru Gothic ProN", "BIZ UDPGothic", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  color: var(--color-text);
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

#app {
  width: 100%;
  max-width: 480px;
  min-height: 100vh;
  background: var(--color-bg);
  position: relative;
  overflow-x: hidden;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
}

/* ---------- 画面切り替え ---------- */

.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  padding: 24px 20px 32px;
  flex: 1;
  gap: 16px;
  position: relative;
}

.screen.active {
  display: flex;
}

/* ---------- ボタン共通 ---------- */

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  color: inherit;
}

.big-btn {
  width: 100%;
  min-height: 72px;
  font-size: 1.35rem;
  font-weight: 700;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.big-btn:active {
  transform: scale(0.96);
  box-shadow: 0 4px 10px rgba(180, 120, 60, 0.18);
}

.primary-btn {
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
}

.text-btn {
  background: transparent;
  color: var(--color-secondary);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: underline;
  padding: 8px;
}

.icon-btn {
  background: var(--color-card);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 1.4rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.settings-icon {
  position: absolute;
  top: 20px;
  right: 20px;
}

/* ---------- キャラクター（優しいお姉さん） ---------- */

.character {
  --skin: #ffe0c2;
  --hair: #a5673f;
  --ribbon: #ff8a65;
  position: relative;
  width: 200px;
  height: 220px;
  margin-top: 8px;
  animation: char-bob 3.2s ease-in-out infinite;
}

.character.small {
  width: 140px;
  height: 154px;
  transform-origin: center;
}

@keyframes char-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.char-body {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  height: 90px;
  background: var(--ribbon);
  border-radius: 60px 60px 20px 20px;
}

.char-body::after {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 26px;
  background: #ffd54f;
  border-radius: 6px;
  box-shadow: 0 0 0 4px var(--ribbon);
}

.char-hair-back {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 148px;
  height: 130px;
  background: var(--hair);
  border-radius: 50% 50% 40% 40%;
}

.char-head {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 128px;
  height: 118px;
  background: var(--skin);
  border-radius: 50%;
  z-index: 2;
}

.char-hair-front {
  position: absolute;
  top: 26px;
  left: 50%;
  transform: translateX(-50%);
  width: 132px;
  height: 46px;
  background: var(--hair);
  border-radius: 50% 50% 60% 60% / 60% 60% 40% 40%;
  z-index: 3;
}

.char-eyes {
  position: absolute;
  top: 54px;
  left: 50%;
  transform: translateX(-50%);
  width: 74px;
  display: flex;
  justify-content: space-between;
  z-index: 4;
}

.char-eye {
  width: 14px;
  height: 16px;
  background: #4a3b30;
  border-radius: 50%;
  animation: char-blink 4.4s ease-in-out infinite;
}

@keyframes char-blink {
  0%, 92%, 100% { transform: scaleY(1); }
  95% { transform: scaleY(0.15); }
}

.char-cheek {
  position: absolute;
  top: 72px;
  width: 18px;
  height: 12px;
  background: #ffb199;
  border-radius: 50%;
  opacity: 0.75;
  z-index: 4;
  filter: blur(1px);
}

.char-cheek.left { left: 12px; }
.char-cheek.right { right: 12px; }

.char-mouth {
  position: absolute;
  top: 82px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 12px;
  border-bottom: 4px solid #d9765f;
  border-radius: 0 0 20px 20px;
  z-index: 4;
  transition: height 0.12s ease, width 0.12s ease;
}

.character.talking .char-mouth {
  animation: char-talk 0.32s ease-in-out infinite;
}

@keyframes char-talk {
  0%, 100% { height: 12px; width: 26px; }
  50% { height: 20px; width: 20px; }
}

.character.listening {
  filter: drop-shadow(0 0 14px rgba(79, 176, 232, 0.55));
}

/* ---------- 吹き出し ---------- */

.speech-bubble {
  background: var(--color-card);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  box-shadow: var(--shadow-soft);
  border: 3px solid var(--color-border);
  white-space: pre-line;
  min-height: 1.5em;
}

/* ---------- スタート画面 ---------- */

[data-screen="start"] {
  justify-content: center;
  text-align: center;
}

/* ---------- 会話画面 ---------- */

[data-screen="chat"] {
  padding-top: 16px;
}

.top-bar {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
}

.progress-wrap {
  flex: 1;
}

.progress-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 6px;
}

.progress-bar {
  width: 100%;
  height: 14px;
  background: #ffe6cc;
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  transition: width 0.5s ease;
}

.mini-puzzle {
  width: 76px;
  height: 46px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-soft);
  flex-shrink: 0;
}

.mission-actions {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: auto;
}

.mic-btn {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--color-secondary);
  color: #fff;
  font-size: 2.2rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease;
}

.mic-btn:active {
  transform: scale(0.94);
}

.mic-btn.listening {
  animation: mic-pulse 1s ease-in-out infinite;
}

@keyframes mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79, 176, 232, 0.5); }
  50% { box-shadow: 0 0 0 16px rgba(79, 176, 232, 0); }
}

.mic-btn.unsupported {
  opacity: 0.4;
  cursor: not-allowed;
}

.voice-hint {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-secondary);
  text-align: center;
}

.answer-buttons {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.answer-btn {
  min-height: 68px;
  border-radius: var(--radius-md);
  font-size: 0.98rem;
  font-weight: 700;
  color: #fff;
  box-shadow: var(--shadow-soft);
  transition: transform 0.15s ease;
}

.answer-btn:active {
  transform: scale(0.95);
}

.done-btn { background: #6bcb77; }
.wait-btn { background: var(--color-wait); color: var(--color-text); }
.unsure-btn { background: var(--color-unsure); }

.mic-status {
  min-height: 1.4em;
  font-size: 0.9rem;
  color: var(--color-primary-dark);
  font-weight: 600;
  text-align: center;
  margin: 0;
}

/* ---------- パズル（ミニ／フル共通の中身） ---------- */

.puzzle-art {
  position: absolute;
  inset: 0;
}

.puzzle-art svg {
  width: 100%;
  height: 100%;
  display: block;
}

.puzzle-covers {
  position: absolute;
  inset: 0;
  display: grid;
}

.puzzle-cover {
  background: #d9c7b3;
  border: 1px solid rgba(255, 255, 255, 0.5);
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.puzzle-cover.revealed {
  opacity: 0;
  transform: scale(0.4) rotate(12deg);
  pointer-events: none;
}

.puzzle-full {
  width: 100%;
  max-width: 340px;
  aspect-ratio: 200 / 120;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-soft);
  border: 4px solid #fff;
}

/* ---------- 完成画面 ---------- */

[data-screen="complete"] {
  text-align: center;
  justify-content: flex-start;
}

.complete-title {
  font-size: 1.8rem;
  margin: 4px 0 0;
  color: var(--color-primary-dark);
}

/* ---------- 設定画面 ---------- */

[data-screen="settings"] {
  align-items: stretch;
}

.settings-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.settings-header h2 {
  font-size: 1.2rem;
  margin: 0;
}

.settings-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 700;
  font-size: 1rem;
}

.settings-field input {
  font-size: 1.1rem;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  background: var(--color-card);
}

.settings-subheading {
  font-size: 1rem;
  margin: 4px 0 0;
  color: var(--color-primary-dark);
}

.mission-settings-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mission-setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-card);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  box-shadow: var(--shadow-soft);
}

.mission-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.02rem;
  font-weight: 600;
}

.mission-toggle input[type="checkbox"] {
  width: 24px;
  height: 24px;
  accent-color: var(--color-primary);
}

.move-buttons {
  display: flex;
  gap: 4px;
}

.move-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  font-size: 0.9rem;
}

.move-btn:disabled {
  opacity: 0.3;
}

/* ---------- 小さい画面向け調整 ---------- */

@media (max-width: 360px) {
  :root { font-size: 16px; }
  .character { width: 170px; height: 190px; }
}