/* ============================================================
   EnglishPro — AI アバター会話 スタイル
   ============================================================ */

/* ======= ホームのAIバナー ======= */
.ai-chat-banner {
  margin: 4px 16px 12px;
  background: linear-gradient(135deg,rgba(108,99,255,.18),rgba(67,217,173,.12));
  border: 1px solid rgba(108,99,255,.35);
  border-radius: 18px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  position: relative;
  overflow: hidden;
}
.ai-chat-banner::before {
  content:'';position:absolute;top:-30px;right:-30px;
  width:100px;height:100px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,99,255,.2),transparent 70%);
}
.ai-banner-left { display:flex;align-items:center;gap:12px;flex:1; }
.ai-banner-icon { font-size:32px;flex-shrink:0;animation:aiFloat 3s ease-in-out infinite; }
@keyframes aiFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-4px)} }
.ai-banner-title { font-size:14px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:6px; }
.ai-badge-new {
  background:linear-gradient(90deg,#FF6584,#FF9A3C);
  color:#fff;font-size:9px;font-weight:800;padding:2px 6px;border-radius:6px;letter-spacing:.5px;
}
.ai-banner-sub { font-size:11px;color:var(--text-secondary);margin-top:2px; }
.ai-banner-btn {
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border:none;border-radius:12px;padding:10px 16px;color:#fff;
  font-size:13px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:6px;
  white-space:nowrap;box-shadow:0 4px 12px rgba(108,99,255,.4);transition:all .2s;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.ai-banner-btn:hover { transform:translateY(-1px); }
.ai-banner-btn:active { transform:scale(.97); }

/* APIキーボタン（バナー内インライン版） */
.ai-key-btn-inline {
  background:rgba(255,255,255,.1);
  box-shadow:none;
  border:1px solid rgba(255,255,255,.2);
  padding:8px 14px;
  font-size:12px;
}
.ai-key-btn-inline:hover { background:rgba(255,255,255,.18); transform:none; }

/* ======= AI画面全体 ======= */
#aiChatScreen { display:flex;flex-direction:column; }

/* ====================================================
   シチュエーション選択ビュー
   ==================================================== */
#aiSelectView { display:flex;flex-direction:column; }

.ai-select-hero {
  text-align:center;
  padding:28px 20px 20px;
  background:linear-gradient(180deg,rgba(108,99,255,.1) 0%,transparent 100%);
}

/* ---- 小アバター（選択画面） ---- */
.ai-select-avatar-wrap {
  display:flex;justify-content:center;margin-bottom:16px;
}
.ai-select-avatar {
  position:relative;width:80px;height:80px;
  display:flex;align-items:center;justify-content:center;
}
.av-face {
  width:60px;height:60px;border-radius:50%;
  background:linear-gradient(135deg,#6C63FF,#43D9AD);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;box-shadow:0 4px 20px rgba(108,99,255,.5);
  position:relative;z-index:2;
}
.av-eyes { display:flex;gap:10px; }
.av-eyes span {
  width:8px;height:8px;border-radius:50%;background:#fff;
  box-shadow:inset 0 1px 3px rgba(0,0,0,.3);
}
.av-mouth {
  width:18px;height:6px;border-radius:0 0 10px 10px;
  background:#fff;opacity:.9;
}
.av-rings { position:absolute;inset:0; }
.av-ring {
  position:absolute;inset:0;border-radius:50%;
  border:2px solid rgba(108,99,255,.4);animation:ringPulse 3s ease-in-out infinite;
}
.av-ring.r1 { animation-delay:0s; }
.av-ring.r2 { transform:scale(1.25);animation-delay:.5s;border-color:rgba(67,217,173,.3); }
.av-ring.r3 { transform:scale(1.55);animation-delay:1s;border-color:rgba(108,99,255,.15); }
@keyframes ringPulse { 0%,100%{opacity:.6} 50%{opacity:1} }

.ai-select-title { font-size:22px;font-weight:800;margin-bottom:4px; }
.ai-select-sub   { font-size:13px;color:var(--text-secondary);margin-bottom:14px; }

/* 難易度ピル */
.ai-select-level-row { display:flex;gap:8px;justify-content:center;margin-bottom:4px; }
.ai-lvl-pill {
  padding:7px 16px;border-radius:20px;border:1.5px solid var(--border);
  background:var(--card);color:var(--text-secondary);font-size:13px;font-weight:700;
  cursor:pointer;transition:all .2s;-webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.ai-lvl-pill.active {
  background:var(--primary);border-color:var(--primary);
  color:#fff;box-shadow:0 2px 10px rgba(108,99,255,.4);
}

/* チップグリッド */
.ai-situation-chips {
  display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:12px 16px;
}
.ai-situation-chip {
  background:var(--card);border:1.5px solid var(--border);border-radius:16px;
  padding:16px 12px;cursor:pointer;transition:all .22s;text-align:center;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.ai-situation-chip:hover,.ai-situation-chip:active {
  border-color:var(--primary);background:var(--card2);transform:scale(1.03);
}
.ai-chip-icon { font-size:28px;margin-bottom:6px;display:block; }
.ai-chip-name { font-size:13px;font-weight:700;color:var(--text); }
.ai-chip-name-en { font-size:10px;color:var(--text-muted);margin-top:2px; }

.ai-select-footer {
  padding:8px 16px 24px;display:flex;justify-content:center;
}
.ai-key-setup-btn {
  background:transparent;border:1px solid var(--border);border-radius:20px;
  padding:8px 20px;color:var(--text-secondary);font-size:12px;font-weight:600;
  cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .2s;
}
.ai-key-setup-btn:hover { border-color:var(--primary-light);color:var(--primary-light); }

/* ====================================================
   アバター会話ビュー
   ==================================================== */
#aiConvView {
  display:none;flex-direction:column;
  height:calc(100vh - 64px);overflow:hidden;
}

/* ---- ステージ（アバター＋吹き出し） ---- */
.av-stage {
  position:relative;
  background:linear-gradient(180deg,#0D0C1A 0%,#141328 100%);
  flex-shrink:0;
  height:320px;
  overflow:hidden;
  display:flex;flex-direction:column;
}

/* 背景パーティクル */
.av-bg-particles { position:absolute;inset:0;overflow:hidden;pointer-events:none; }
.av-particle {
  position:absolute;border-radius:50%;
  animation:particleDrift linear infinite;opacity:0;
}
@keyframes particleDrift {
  0%   { transform:translateY(100%) scale(0);opacity:0; }
  10%  { opacity:.6; }
  90%  { opacity:.2; }
  100% { transform:translateY(-20px) scale(1);opacity:0; }
}

/* 上部バー */
.av-top-bar {
  position:absolute;top:0;left:0;right:0;
  display:flex;align-items:center;gap:8px;
  padding:10px 14px;z-index:10;
  background:linear-gradient(180deg,rgba(13,12,26,.8) 0%,transparent 100%);
}
.av-situation-pill {
  display:flex;align-items:center;gap:5px;
  background:rgba(108,99,255,.2);border:1px solid rgba(108,99,255,.3);
  border-radius:20px;padding:4px 12px;font-size:12px;font-weight:700;color:var(--primary-light);
  flex:1;
}
.av-level-pill {
  background:rgba(255,181,71,.15);border:1px solid rgba(255,181,71,.3);
  border-radius:20px;padding:4px 10px;font-size:11px;font-weight:700;color:var(--warning);
  white-space:nowrap;
}
.av-end-btn {
  width:32px;height:32px;border-radius:50%;border:1px solid rgba(255,255,255,.15);
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.6);
  font-size:13px;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all .2s;flex-shrink:0;
}
.av-end-btn:hover { background:rgba(255,101,132,.2);border-color:var(--error);color:var(--error); }

/* ---- アバター本体 ---- */
.av-body-wrap {
  flex:1;display:flex;align-items:center;justify-content:space-between;
  padding:40px 16px 16px;position:relative;
}

.av-avatar {
  position:relative;
  flex-shrink:0;
  width:120px;height:120px;
  display:flex;align-items:center;justify-content:center;
}

.av-glow {
  position:absolute;inset:-20px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,99,255,.4) 0%,transparent 70%);
  transition:all .5s;
}
.av-glow.speaking {
  background:radial-gradient(circle,rgba(108,99,255,.7) 0%,transparent 65%);
  animation:glowPulse .6s ease-in-out infinite;
}
.av-glow.listening {
  background:radial-gradient(circle,rgba(255,101,132,.5) 0%,transparent 65%);
  animation:glowPulse .4s ease-in-out infinite;
}
.av-glow.thinking {
  background:radial-gradient(circle,rgba(255,181,71,.4) 0%,transparent 65%);
  animation:glowPulse 1s ease-in-out infinite;
}
@keyframes glowPulse { 0%,100%{transform:scale(1)} 50%{transform:scale(1.1)} }

/* 顔 */
.av-face-large {
  width:100px;height:100px;border-radius:50%;
  background:linear-gradient(135deg,#5B52E8,#3DC8A0);
  box-shadow:0 0 30px rgba(108,99,255,.6),inset 0 -4px 12px rgba(0,0,0,.2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;position:relative;z-index:2;
  transition:transform .3s;
}
.av-face-large.talking { animation:faceWiggle .3s ease-in-out infinite alternate; }
@keyframes faceWiggle { from{transform:scaleY(1)} to{transform:scaleY(1.03)} }

.av-eyes-large { display:flex;gap:16px;margin-bottom:2px; }
.av-eye {
  width:16px;height:16px;border-radius:50%;background:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 2px 4px rgba(0,0,0,.2);
  transition:transform .15s;
}
.av-eye.blink { animation:blink .12s ease-in-out; }
@keyframes blink { 0%,100%{transform:scaleY(1)} 50%{transform:scaleY(.05)} }
.av-pupil {
  width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,#1a1a2e,#2d1b69);
  box-shadow:inset 0 1px 2px rgba(255,255,255,.3);
  transition:transform .1s;
}

.av-nose {
  width:6px;height:4px;border-radius:50%;
  background:rgba(255,255,255,.3);
  margin-bottom:2px;
}

.av-mouth-large {
  width:40px;height:18px;overflow:hidden;
  display:flex;align-items:flex-end;justify-content:center;
}
.av-mouth-inner {
  width:32px;height:16px;border-radius:0 0 16px 16px;
  background:rgba(255,255,255,.9);
  transition:height .2s,border-radius .2s;
}
/* 表情バリエーション */
.av-face-large.happy .av-mouth-inner  { height:18px;border-radius:0 0 20px 20px; }
.av-face-large.thinking .av-mouth-inner { height:6px;border-radius:4px;width:20px; }
.av-face-large.surprised .av-mouth-inner { height:22px;border-radius:50%;width:24px; }

.av-body-shape {
  position:absolute;bottom:-20px;left:50%;transform:translateX(-50%);
  width:60px;height:40px;border-radius:30px 30px 0 0;
  background:linear-gradient(180deg,#4A42D0,#2A2460);
  box-shadow:0 -4px 12px rgba(108,99,255,.3);
}

/* 大きいリング */
.av-rings-large { position:absolute;inset:-30px;pointer-events:none; }
.av-ring-l {
  position:absolute;inset:0;border-radius:50%;
  border:1.5px solid rgba(108,99,255,.25);
  animation:ringPulse 3s ease-in-out infinite;
}
.av-ring-l.rl1 { animation-delay:0s; }
.av-ring-l.rl2 { inset:-20px;border-color:rgba(67,217,173,.15);animation-delay:1s; }

/* ---- 吹き出し ---- */
.av-speech-bubble {
  flex:1;margin-left:12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px 18px 18px 4px;
  padding:12px 14px;
  position:relative;
  animation:bubbleAppear .3s cubic-bezier(.34,1.56,.64,1);
  max-height:160px;overflow-y:auto;
  -webkit-overflow-scrolling:touch;
}
@keyframes bubbleAppear {
  from{opacity:0;transform:scale(.9) translateX(-8px)}
  to{opacity:1;transform:scale(1) translateX(0)}
}
.av-speech-text { font-size:15px;font-weight:600;color:#fff;line-height:1.5;margin-bottom:4px; }
.av-speech-ja   { font-size:12px;color:rgba(255,255,255,.55);line-height:1.4; }
.av-speech-speak {
  position:absolute;top:8px;right:8px;
  background:rgba(108,99,255,.2);border:none;border-radius:50%;
  width:26px;height:26px;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.6);font-size:11px;cursor:pointer;transition:all .2s;
}
.av-speech-speak:hover { background:rgba(108,99,255,.5);color:#fff; }

/* タイピング */
.av-typing-bubble {
  flex:1;margin-left:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:18px 18px 18px 4px;padding:14px 18px;
  display:flex;gap:6px;align-items:center;
}
.av-typing-dot {
  width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.5);
  animation:typBounce 1.2s ease-in-out infinite;
}
.av-typing-dot:nth-child(2){animation-delay:.2s}
.av-typing-dot:nth-child(3){animation-delay:.4s}
@keyframes typBounce { 0%,80%,100%{transform:translateY(0);opacity:.4} 40%{transform:translateY(-7px);opacity:1} }

/* 感情エフェクト */
.av-emotion-fx {
  position:absolute;inset:0;pointer-events:none;
  display:flex;align-items:center;justify-content:center;
  font-size:32px;opacity:0;transition:opacity .3s;
}
.av-emotion-fx.show { animation:emotionPop .8s ease forwards; }
@keyframes emotionPop {
  0%  {opacity:0;transform:scale(.5) translateY(0)}
  30% {opacity:1;transform:scale(1.3) translateY(-20px)}
  60% {opacity:.8;transform:scale(1) translateY(-40px)}
  100%{opacity:0;transform:scale(.8) translateY(-70px)}
}

/* ---- 会話履歴 ---- */
.av-history {
  flex:1;overflow-y:auto;padding:10px 14px;
  display:flex;flex-direction:column;gap:8px;
  background:var(--bg);
  -webkit-overflow-scrolling:touch;overscroll-behavior:contain;
}

.av-hist-item {
  display:flex;flex-direction:column;
  animation:histSlide .25s ease;
}
@keyframes histSlide { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:translateY(0)} }

.av-hist-item.ai-msg  { align-self:flex-start;max-width:82%; }
.av-hist-item.user-msg{ align-self:flex-end;  max-width:82%; }
.av-hist-item.sys-msg { align-self:center;    max-width:95%; }

.av-hist-role {
  font-size:10px;font-weight:700;color:var(--text-muted);
  margin-bottom:3px;text-transform:uppercase;letter-spacing:.5px;
}
.av-hist-item.user-msg .av-hist-role { text-align:right; }

.av-hist-bubble {
  padding:11px 14px;border-radius:16px;font-size:14px;line-height:1.6;
}
.av-hist-item.ai-msg .av-hist-bubble {
  background:var(--card2);border:1px solid var(--border);
  border-bottom-left-radius:3px;color:var(--text);
  font-weight:500;
}
.av-hist-item.user-msg .av-hist-bubble {
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-bottom-right-radius:3px;color:#fff;
}
.av-hist-item.sys-msg .av-hist-bubble {
  background:rgba(108,99,255,.08);border:1px solid rgba(108,99,255,.15);
  border-radius:10px;color:var(--text-secondary);font-size:11px;text-align:center;width:100%;
}
.av-hist-ja {
  font-size:12px;
  color:var(--text-secondary);
  margin-top:5px;
  padding:5px 10px;
  background:rgba(255,255,255,.04);
  border-left:2px solid rgba(67,217,173,.5);
  border-radius:0 6px 6px 0;
  line-height:1.5;
}
.av-hist-item.user-msg .av-hist-ja {
  text-align:right;
  color:rgba(255,255,255,.5);
  border-left:none;
  border-right:2px solid rgba(255,255,255,.3);
  border-radius:6px 0 0 6px;
}

/* ---- 添削バナー ---- */
.av-correction {
  margin:0 12px 6px;border-radius:14px;
  background:linear-gradient(135deg,rgba(67,217,173,.1),rgba(108,99,255,.08));
  border:1px solid rgba(67,217,173,.3);
  padding:10px 12px;animation:slideUp .3s ease;flex-shrink:0;
}
@keyframes slideUp { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:translateY(0)} }
.av-correction-header {
  display:flex;align-items:center;justify-content:space-between;
  font-size:11px;font-weight:700;color:var(--accent);text-transform:uppercase;
  letter-spacing:.8px;margin-bottom:6px;
}
.av-correction-close {
  background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:12px;
}
.av-correction-body { font-size:13px;color:var(--text-secondary);line-height:1.6; }
.av-correction-body .fixed   { color:var(--accent);font-weight:600; }
.av-correction-body .wrong   { color:var(--error);text-decoration:line-through;opacity:.7; }
.av-correction-body .tip     { color:var(--warning);font-size:12px;display:block;margin-top:4px; }

/* ---- 入力ゾーン ---- */
.av-input-zone {
  background:var(--bg2);border-top:1px solid var(--border);
  flex-shrink:0;padding-bottom:max(8px,env(safe-area-inset-bottom));
}

.av-shortcut-row {
  display:flex;gap:6px;padding:6px 12px 4px;overflow-x:auto;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.av-shortcut-row::-webkit-scrollbar { display:none; }
.av-sc-btn {
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:5px 12px;color:var(--text-secondary);font-size:12px;font-weight:600;
  cursor:pointer;white-space:nowrap;display:flex;align-items:center;gap:4px;
  transition:all .2s;-webkit-tap-highlight-color:transparent;touch-action:manipulation;
  flex-shrink:0;
}
.av-sc-btn:hover { border-color:var(--primary);color:var(--primary-light); }
.av-sc-btn:active { transform:scale(.96); }

.av-input-row {
  display:flex;align-items:flex-end;gap:8px;padding:6px 12px 8px;
}

.av-mic-btn {
  width:46px;height:46px;border-radius:50%;flex-shrink:0;
  border:1.5px solid var(--border);background:var(--card);
  color:var(--text-secondary);font-size:17px;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all .2s;-webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.av-mic-btn:hover { background:var(--card2);color:var(--text); }
.av-mic-btn.recording {
  background:rgba(255,101,132,.15);border-color:var(--error);color:var(--error);
  animation:micPulse 1s ease-in-out infinite;
}
@keyframes micPulse {
  0%,100%{box-shadow:0 0 0 0 rgba(255,101,132,.4)}
  50%{box-shadow:0 0 0 8px rgba(255,101,132,0)}
}

.av-textarea-wrap {
  flex:1;background:var(--card);border:1.5px solid var(--border);
  border-radius:22px;padding:9px 14px;transition:border-color .2s;
}
.av-textarea-wrap:focus-within { border-color:var(--primary); }
.av-textarea {
  width:100%;background:transparent;border:none;outline:none;
  color:var(--text);font-size:14px;font-family:inherit;
  resize:none;max-height:100px;line-height:1.5;overflow-y:auto;
  -webkit-overflow-scrolling:touch;
}
.av-textarea::placeholder { color:var(--text-muted); }

.av-send-btn {
  width:46px;height:46px;border-radius:50%;border:none;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:16px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 3px 10px rgba(108,99,255,.4);transition:all .2s;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.av-send-btn:hover { transform:scale(1.08); }
.av-send-btn:active { transform:scale(.95); }
.av-send-btn:disabled { opacity:.4;cursor:not-allowed;transform:none; }

/* ====================================================
   APIキー設定モーダル
   ==================================================== */
.api-key-modal-card { padding:28px 20px 36px; }
.api-key-header { text-align:center;margin-bottom:20px; }
.api-key-icon { font-size:44px;margin-bottom:10px;display:block; }
.api-key-title { font-size:18px;font-weight:800;margin-bottom:4px; }
.api-key-sub { font-size:13px;color:var(--text-secondary); }
.api-key-label {
  display:block;font-size:12px;font-weight:700;color:var(--text-secondary);
  text-transform:uppercase;letter-spacing:.8px;margin-bottom:8px;
}
.api-key-input-wrap { position:relative;margin-bottom:10px; }
.api-key-input {
  width:100%;background:var(--bg3);border:1.5px solid var(--border);border-radius:12px;
  padding:13px 44px 13px 14px;color:var(--text);font-size:14px;font-family:monospace;
  outline:none;transition:border-color .2s;
}
.api-key-input:focus { border-color:var(--primary); }
.api-key-eye {
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:14px;padding:4px;
}
.api-key-note {
  font-size:11px;color:var(--text-muted);display:flex;align-items:flex-start;
  gap:6px;line-height:1.5;margin-bottom:20px;padding:10px;
  background:rgba(67,217,173,.06);border:1px solid rgba(67,217,173,.15);border-radius:10px;
}
.api-key-note i { color:var(--accent);margin-top:1px;flex-shrink:0; }
.api-key-actions { display:flex;flex-direction:column;gap:10px; }
.api-key-status { margin-top:12px;font-size:13px;text-align:center;min-height:20px; }
.api-key-status.ok    { color:var(--accent); }
.api-key-status.error { color:var(--error);  }

/* ====================================================
   AI セッション終了モーダル
   ==================================================== */
.ai-result-modal-card { padding:32px 20px 40px;text-align:center; }
.ai-result-emoji { font-size:56px;margin-bottom:12px;animation:bounce .6s ease; }
.ai-result-title { font-size:22px;font-weight:800;margin-bottom:16px; }
.ai-result-stats {
  display:flex;justify-content:center;gap:24px;
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:16px;margin-bottom:16px;
}
.ai-stat span  { display:block;font-size:26px;font-weight:800;color:var(--primary-light);line-height:1; }
.ai-stat small { display:block;font-size:11px;color:var(--text-muted);margin-top:4px; }
.ai-result-summary {
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:14px;font-size:13px;color:var(--text-secondary);line-height:1.7;
  text-align:left;margin-bottom:20px;white-space:pre-wrap;
}

/* ====================================================
   マイク録音オーバーレイ
   ==================================================== */
.mic-wave-overlay {
  position:fixed;inset:0;background:rgba(0,0,0,.8);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  z-index:500;gap:16px;
}
.mic-wave-icon  { font-size:64px;color:var(--error);animation:micPulse 1s ease-in-out infinite; }
.mic-wave-text  { color:#fff;font-size:16px;font-weight:600; }
.mic-wave-bars  { display:flex;gap:5px;align-items:flex-end;height:40px; }
.mic-wave-bar   {
  width:6px;background:var(--error);border-radius:3px;
  animation:waveBar .8s ease-in-out infinite;
}
.mic-wave-bar:nth-child(1){animation-delay:0s}
.mic-wave-bar:nth-child(2){animation-delay:.1s}
.mic-wave-bar:nth-child(3){animation-delay:.2s}
.mic-wave-bar:nth-child(4){animation-delay:.3s}
.mic-wave-bar:nth-child(5){animation-delay:.4s}
@keyframes waveBar {
  0%,100%{height:8px;opacity:.5}
  50%{height:36px;opacity:1}
}
.mic-wave-cancel {
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  border-radius:20px;padding:10px 24px;color:#fff;font-size:14px;cursor:pointer;margin-top:8px;
}

/* ====================================================
   子供モード補正
   ==================================================== */
body.kids-mode .ai-chat-banner {
  background:linear-gradient(135deg,rgba(255,215,0,.12),rgba(100,220,150,.1));
  border-color:rgba(255,215,0,.3);
}
body.kids-mode .ai-banner-btn {
  background:linear-gradient(135deg,#FFD700,#FFA500);
  color:#1a1a1a;box-shadow:0 4px 12px rgba(255,215,0,.35);
}
body.kids-mode .av-face-large {
  background:linear-gradient(135deg,#FF6B9D,#FFD700);
}
body.kids-mode .av-speech-text {
  font-size:16px;font-family:'Nunito',sans-serif;font-weight:700;
}
body.kids-mode .av-textarea { font-size:15px; }

/* ====================================================
   レスポンシブ
   ==================================================== */
@media (max-width:360px) {
  .av-stage { height:280px; }
  .av-face-large { width:84px;height:84px; }
  .av-avatar { width:100px;height:100px; }
  .av-speech-text { font-size:13px; }
  .ai-situation-chips { grid-template-columns:1fr 1fr;gap:8px; }
}
@media (orientation:landscape) and (max-height:500px) {
  .av-stage { height:220px; }
  #aiConvView { height:calc(100vh - 56px); }
}

/* ====================================================
   AI 結果モーダル — 中央配置
   ==================================================== */
#aiResultModal.open {
  align-items:center;
  justify-content:center;
  padding:16px;
}
#aiResultModal .modal-card {
  border-radius:24px;
  max-width:400px;
}

/* ====================================================
   aiChatScreen が active のときのレイアウト補正
   ==================================================== */
#aiChatScreen.active {
  display:flex;
  flex-direction:column;
  /* AI会話画面はスクロールさせない */
  overflow:hidden;
  height:calc(100vh - 64px);
}
/* aiChatScreen が active のとき親の padding を無効化 */
.app-main:has(#aiChatScreen.active) {
  padding:0;
}

/* ====================================================
   コンビネーション: AI 会話ビューのフレックス補正
   ==================================================== */
#aiConvView.flex-active {
  display:flex !important;
  flex-direction:column;
  height:calc(100dvh - 64px);
  overflow:hidden;
}

/* ====================================================
   AI チャット履歴スクロール強調
   ==================================================== */
.av-history::-webkit-scrollbar { width:3px; }
.av-history::-webkit-scrollbar-track { background:transparent; }
.av-history::-webkit-scrollbar-thumb { background:rgba(255,255,255,.1);border-radius:2px; }

/* ====================================================
   ユーザー履歴バブル内 改行
   ==================================================== */
.av-hist-bubble br { display:block; }

/* ====================================================
   AI 会話画面の safe-area 補正
   ==================================================== */
.av-input-zone {
  padding-bottom: max(12px, env(safe-area-inset-bottom, 12px));
}

/* ====================================================
   子供モード — AI会話のフォント補正
   ==================================================== */
body.kids-mode .av-hist-bubble {
  font-size:14px;
  font-family:'Nunito', 'Noto Sans JP', sans-serif;
}
body.kids-mode .ai-select-title {
  font-family:'Nunito', 'Noto Sans JP', sans-serif;
}

/* ====================================================
   API キーが未設定の場合のバナー補足
   ==================================================== */
.ai-key-notice {
  text-align:center;
  padding:10px 16px;
  font-size:12px;
  color:var(--text-muted);
  background:rgba(108,99,255,.06);
  border-top:1px solid var(--border);
  margin-top:4px;
}
.ai-key-notice a {
  color:var(--primary-light);
  text-decoration:none;
  font-weight:600;
}

/* ====================================================
   フレーズ解説カード
   ==================================================== */
.av-phrase-card {
  align-self: stretch;
  background: linear-gradient(135deg, rgba(67,217,173,.1), rgba(108,99,255,.08));
  border: 1.5px solid rgba(67,217,173,.35);
  border-radius: 16px;
  padding: 14px 14px 12px;
  margin: 4px 0;
  animation: histSlide .3s ease;
  position: relative;
  overflow: hidden;
}
.av-phrase-card::before {
  content: '';
  position: absolute;
  top: -20px; right: -20px;
  width: 80px; height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(67,217,173,.15), transparent 70%);
  pointer-events: none;
}
.av-phrase-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.av-phrase-card-badge {
  font-size: 11px;
  font-weight: 800;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .6px;
}
.av-phrase-card-speak {
  background: rgba(67,217,173,.15);
  border: none;
  border-radius: 50%;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
  transition: all .2s;
  -webkit-tap-highlight-color: transparent;
}
.av-phrase-card-speak:hover { background: rgba(67,217,173,.3); transform: scale(1.1); }
.av-phrase-card-speak:active { transform: scale(.95); }

.av-phrase-card-en {
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 5px;
  font-family: 'Inter', sans-serif;
}
.av-phrase-card-ja {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.5;
}
.av-phrase-card-tip {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-top: 8px;
  border-top: 1px solid rgba(67,217,173,.2);
}

/* 子供モード補正 */
body.kids-mode .av-phrase-card-en {
  font-size: 18px;
  font-family: 'Nunito', sans-serif;
}

/* ====================================================
   履歴エリアの空状態
   ==================================================== */
.av-history-empty {
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  height:100%;
  color:var(--text-muted);
  font-size:13px;
  gap:8px;
  opacity:.6;
}
.av-history-empty .empty-icon { font-size:36px; }