:root{--bg:#f5f0e8;--sur:#fff;--sur2:#ede8df;--bdr:#d4ccc0;--tx:#1a1a1a;--tx2:#6b6456;--ac:#1a1a1a;--danger:#c0392b;--ok:#27ae60}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
html,body{height:100%;background:var(--bg);color:var(--tx);font-family:'Noto Sans JP',sans-serif;font-weight:300;overflow:hidden}
.app{height:100dvh;display:flex;flex-direction:column;max-width:480px;margin:0 auto}
.screen{display:none;flex:1;flex-direction:column;overflow:hidden}
.screen.active{display:flex}
.header{padding:0 20px;height:56px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--bdr);flex-shrink:0}
.header-title{font-family:'Noto Serif JP',serif;font-size:15px;font-weight:700;letter-spacing:.05em}
.header-sub{font-size:11px;color:var(--tx2);letter-spacing:.05em}
.hdr-btn{background:none;border:1px solid var(--bdr);color:var(--tx2);font-size:12px;padding:6px 14px;border-radius:20px;cursor:pointer;font-family:'Noto Sans JP',sans-serif}
.nav{display:flex;border-top:1px solid var(--bdr);flex-shrink:0;background:var(--sur)}
.nav-btn{flex:1;padding:12px 0 16px;display:flex;flex-direction:column;align-items:center;gap:4px;background:none;border:none;cursor:pointer;color:var(--tx2);font-size:9px;letter-spacing:.05em;font-family:'Noto Sans JP',sans-serif;touch-action:manipulation}
.nav-btn.active{color:var(--ac)}
.nav-btn svg{width:20px;height:20px}
.scroll{flex:1;overflow-y:auto;padding:16px 20px 80px;display:flex;flex-direction:column;gap:12px}
.card{background:var(--sur);border:1px solid var(--bdr);border-radius:2px;padding:16px}
.label{font-size:10px;letter-spacing:.2em;color:var(--tx2);text-transform:uppercase;margin-bottom:8px}
.btn-fill{background:var(--ac);color:var(--bg);border:none;width:100%;padding:13px;font-size:13px;font-weight:500;cursor:pointer;font-family:'Noto Sans JP',sans-serif;border-radius:2px;letter-spacing:.05em}
.btn-fill:active{opacity:.8}
.date-row{font-size:11px;color:var(--tx2);letter-spacing:.15em;text-transform:uppercase}
.mode-row{display:flex;gap:8px}
.mode-btn{flex:1;padding:8px;background:var(--sur2);border:1px solid var(--bdr);color:var(--tx2);font-size:11px;cursor:pointer;font-family:'Noto Sans JP',sans-serif;border-radius:2px;letter-spacing:.05em}
.mode-btn.active{border-color:var(--ac);color:var(--ac)}
.word-select{width:100%;background:var(--sur2);border:1px solid var(--bdr);color:var(--tx);font-size:13px;padding:10px 14px;font-family:'Noto Sans JP',sans-serif;border-radius:2px;appearance:none}
.word-card-lbl{font-size:9px;letter-spacing:.2em;color:var(--tx2);text-transform:uppercase;margin-bottom:14px}
.word-title{font-family:'Noto Serif JP',serif;font-size:13px;font-weight:700;color:var(--tx2);margin-bottom:10px;letter-spacing:.05em}
.word-text{font-family:'Noto Serif JP',serif;font-size:16px;line-height:2.2;color:var(--tx);word-break:break-all}
.word-tap-hint{font-size:9px;color:var(--tx2);letter-spacing:.1em;margin-top:10px;text-align:right}
.word-empty{text-align:center;padding:40px 0;color:var(--tx2);font-size:13px;line-height:2}
.rec-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.rec-btn{display:inline-flex;align-items:center;gap:5px;padding:7px 12px;border:1.5px solid var(--ac);background:transparent;color:var(--ac);font-size:12px;font-family:'Noto Sans JP',sans-serif;border-radius:2px;cursor:pointer;letter-spacing:.03em;white-space:nowrap}
.rec-btn.recording{border-color:var(--danger);color:var(--danger);animation:recpulse 1s ease-in-out infinite}
@keyframes recpulse{0%,100%{box-shadow:0 0 0 0 rgba(192,57,43,.4)}50%{box-shadow:0 0 0 4px rgba(192,57,43,0)}}
.rec-dur{font-size:11px;color:var(--tx2)}
.play-btn{display:inline-flex;align-items:center;gap:5px;padding:7px 10px;border:1.5px solid var(--tx2);background:transparent;color:var(--tx);font-size:11px;font-family:'Noto Sans JP',sans-serif;border-radius:2px;cursor:pointer;letter-spacing:.03em;white-space:nowrap}
.play-btn.playing{border-color:var(--ok);color:var(--ok)}
.play-btn.loop-on{border-color:var(--ac);color:var(--ac);background:rgba(26,26,26,.08)}
.memo-input{width:100%;background:var(--sur2);border:1px solid var(--bdr);color:var(--tx);font-size:14px;padding:12px 14px;font-family:'Noto Serif JP',serif;border-radius:2px;resize:none;min-height:80px;line-height:1.7;outline:none}
.memo-input:focus{border-color:var(--ac)}
.notif-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.notif-desc{font-size:12px;color:var(--tx2);line-height:1.5}
.notif-toggle{flex-shrink:0;width:64px;height:32px;border-radius:16px;border:none;background:var(--bdr);color:var(--tx2);font-size:11px;font-family:'Noto Sans JP',sans-serif;cursor:pointer}
.notif-toggle.on{background:var(--ok);color:#fff}
.sponsor{border:1px solid var(--bdr);border-radius:2px;padding:14px 16px;display:flex;align-items:center;gap:12px;text-decoration:none}
.sponsor-icon{width:36px;height:36px;background:var(--sur2);border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-family:'Noto Serif JP',serif;font-size:11px;font-weight:700}
.sponsor-lbl{font-size:8px;letter-spacing:.2em;color:var(--tx2);text-transform:uppercase;margin-bottom:3px}
.sponsor-name{font-size:12px;color:var(--tx);line-height:1.5}
.hint-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200;display:flex;align-items:flex-end;opacity:0;pointer-events:none;transition:opacity .2s}
.hint-overlay.show{opacity:1;pointer-events:all}
.hint-card{background:var(--sur);border-top:1px solid var(--bdr);border-radius:12px 12px 0 0;padding:24px 20px 40px;width:100%;max-height:70vh;overflow-y:auto;transform:translateY(100%);transition:transform .25s ease}
.hint-overlay.show .hint-card{transform:translateY(0)}
.hint-text{font-family:'Noto Serif JP',serif;font-size:16px;line-height:2.2;word-break:break-all;margin-bottom:16px}
.reg-method-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.reg-method-btn{padding:20px 12px;background:var(--sur);border:1px solid var(--bdr);color:var(--tx2);cursor:pointer;font-family:'Noto Sans JP',sans-serif;border-radius:2px;text-align:center;font-size:12px;letter-spacing:.05em;display:flex;flex-direction:column;align-items:center;gap:10px}
.reg-method-btn svg{width:28px;height:28px}
.reg-method-btn.active{border-color:var(--ac);color:var(--ac)}
.reg-input,.reg-textarea{width:100%;background:var(--sur);border:1px solid var(--bdr);color:var(--tx);font-size:14px;padding:12px 14px;font-family:'Noto Sans JP',sans-serif;border-radius:2px;outline:none}
.reg-textarea{font-family:'Noto Serif JP',serif;resize:none;min-height:120px;line-height:1.8}
.reg-input:focus,.reg-textarea:focus{border-color:var(--ac)}
.image-area{border:2px dashed var(--bdr);border-radius:2px;padding:32px 20px;text-align:center;cursor:pointer;position:relative}
.image-area.has-image{border-style:solid;border-color:var(--ac);padding:0;overflow:hidden}
.image-area img{width:100%;display:block;max-height:300px;object-fit:contain;background:var(--sur2)}
.image-placeholder{display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--tx2);font-size:13px}
.image-placeholder svg{width:36px;height:36px}
.image-input{position:absolute;inset:0;opacity:0;cursor:pointer}
.ocr-status{font-size:12px;color:var(--ac);text-align:center;padding:8px;display:none}
.ruby-hint{font-size:10px;color:var(--tx2);line-height:1.6;margin-top:6px}
.ruby-hint code{background:var(--sur2);padding:1px 5px;border-radius:2px;font-size:10px}
.log-item{background:var(--sur);border:1px solid var(--bdr);border-radius:2px;padding:14px 16px}
.log-hdr{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:2px}
.log-del{background:none;border:none;color:var(--tx2);cursor:pointer;padding:2px 4px;flex-shrink:0}
.log-del.confirm{color:var(--danger)}
.log-date{font-size:10px;letter-spacing:.1em;color:var(--ac);margin-bottom:4px}
.log-word{font-size:11px;color:var(--tx2);margin-bottom:4px}
.log-memo{font-size:13px;color:var(--tx);line-height:1.7;border-top:1px solid var(--bdr);padding-top:8px;margin-top:6px;white-space:pre-wrap}
.log-audio{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.log-empty{text-align:center;padding:60px 20px;color:var(--tx2);font-size:13px;line-height:2}
.word-item{background:var(--sur);border:1px solid var(--bdr);border-radius:2px;padding:14px 16px;display:flex;align-items:flex-start;gap:12px}
.word-item-body{flex:1;overflow:hidden;cursor:pointer}
.word-item-title{font-size:12px;font-weight:500;margin-bottom:4px}
.word-item-preview{font-size:11px;color:var(--tx2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.word-item-btn{background:none;border:none;color:var(--tx2);cursor:pointer;padding:4px;flex-shrink:0}
.words-add-btn{width:100%;padding:14px;background:none;border:1px dashed var(--bdr);color:var(--tx2);font-size:13px;cursor:pointer;font-family:'Noto Sans JP',sans-serif;border-radius:2px;letter-spacing:.05em}
.toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--sur2);border:1px solid var(--bdr);color:var(--tx);padding:10px 20px;font-size:13px;border-radius:20px;opacity:0;transition:all .3s;pointer-events:none;max-width:min(340px,90vw);text-align:center;z-index:100;white-space:pre-wrap}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.error{background:#2d1010;border-color:var(--danger);color:#f5c6c6}
.install-banner{position:fixed;bottom:0;left:0;right:0;background:var(--tx);color:var(--bg);padding:14px 20px 28px;display:flex;align-items:center;gap:12px;z-index:300;transform:translateY(100%);transition:transform .3s ease}
.install-banner.show{transform:translateY(0)}
.ib-icon{width:40px;height:40px;background:var(--bg);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-family:'Noto Serif JP',serif;font-size:16px;font-weight:900;color:var(--tx)}
.ib-body{flex:1}
.ib-title{font-size:13px;font-weight:500;margin-bottom:2px}
.ib-sub{font-size:11px;color:rgba(245,240,232,.6)}
.ib-btn{background:var(--bg);color:var(--tx);border:none;font-size:12px;font-weight:700;padding:8px 16px;border-radius:20px;cursor:pointer;font-family:'Noto Sans JP',sans-serif;white-space:nowrap;flex-shrink:0}
.ib-close{background:none;border:none;color:rgba(245,240,232,.5);font-size:18px;cursor:pointer;padding:4px;flex-shrink:0}
ruby,rt{display:none}
::-webkit-scrollbar{width:2px}
::-webkit-scrollbar-thumb{background:var(--bdr)}

/* 削除確認バナー */
.del-confirm{position:fixed;bottom:calc(env(safe-area-inset-bottom,0px) + 80px);left:50%;transform:translateX(-50%) translateY(calc(100% + 120px));background:var(--sur);border:2px solid var(--danger);border-radius:14px;padding:12px 16px;display:flex;align-items:center;gap:10px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:200;white-space:nowrap;box-shadow:0 8px 32px rgba(0,0,0,.25)}
.del-confirm.show{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto}
.del-confirm-msg{font-size:14px;color:var(--tx);flex:1}
.del-confirm-btn{border:none;border-radius:8px;padding:7px 14px;font-size:13px;font-weight:700;cursor:pointer;font-family:'Noto Sans JP',sans-serif}
.del-confirm-ok{background:var(--danger);color:#fff}
.del-confirm-cancel{background:var(--bdr);color:var(--tx2)}

/* Powered by */
.powered-by{font-size:10px;color:var(--tx2);text-decoration:none;letter-spacing:.04em;opacity:.7;flex-shrink:0;text-align:right;line-height:1.4}
.powered-by:hover{opacity:1}

.header-right{display:flex;flex-direction:column;align-items:flex-end;gap:4px}
.hdr-btn-sm{font-size:10px;padding:3px 8px;opacity:.5}
.hdr-btn-sm:hover{opacity:.8}

.clear-all-wrap{padding:0 0 4px;display:flex;justify-content:flex-end;margin-bottom:-4px}
.clear-all-btn{background:none;border:none;font-size:11px;color:var(--tx2);cursor:pointer;opacity:.5;font-family:'Noto Sans JP',sans-serif;letter-spacing:.04em}
.clear-all-btn:hover{opacity:.9;color:var(--danger)}

/* 録音ボタン固定バー */
.rec-bar{position:fixed;bottom:calc(env(safe-area-inset-bottom,0px) + 57px);left:0;right:0;background:var(--bg);border-top:1px solid var(--bdr);padding:8px 12px;display:none;align-items:center;gap:6px;z-index:100;flex-wrap:nowrap}
.rec-bar.visible{display:flex}

.words-sep{border-top:1px solid var(--bdr);margin:8px 0}

.log-detail-btn{background:none;border:1px solid var(--bdr);color:var(--tx2);font-size:11px;padding:3px 8px;border-radius:4px;cursor:pointer;font-family:'Noto Sans JP',sans-serif;white-space:nowrap}
.log-detail-btn:hover{border-color:var(--tx2);color:var(--tx)}

/* スポンサー広告枠 */
.sponsor-ad{display:flex;align-items:center;gap:12px;border:1px dashed var(--bdr);border-radius:2px;padding:12px 16px;text-decoration:none;position:relative}
.sponsor-ad-label{font-size:8px;letter-spacing:.15em;color:var(--tx2);opacity:.6;position:absolute;top:6px;right:10px}
.sponsor-ad-name{font-size:12px;color:var(--tx);font-weight:500;margin-bottom:2px}
.sponsor-ad-desc{font-size:11px;color:var(--tx2)}

.lang-btn-sub{background:none;border:1px solid var(--bdr);color:var(--tx2);font-size:10px;padding:2px 7px;border-radius:4px;cursor:pointer;font-family:'Noto Sans JP',sans-serif;flex-shrink:0}

/* PWAインストール済みの場合のみ sponsor / powered-by を表示 */
.sponsor, .sponsor-ad, .powered-by {
  display: none;
}
@media (display-mode: standalone) {
  .sponsor { display: flex; }
  .sponsor-ad { display: flex; }
  .powered-by { display: block; }
}

/* iOS PWA（navigator.standalone）対応 */
body.pwa-standalone .sponsor { display: flex; }
body.pwa-standalone .sponsor-ad { display: flex; }
body.pwa-standalone .powered-by { display: block; }

/* ── PC レスポンシブ (641px以上) ─────────────────────────────── */
@media (min-width: 641px) {
  html {
    background: #2a2520;
  }
  body {
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100dvh;
  }
  .app {
    width: 420px;
    min-width: 420px;
    max-width: 420px;
    height: min(860px, 96dvh);
    border-radius: 24px;
    box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
    overflow: hidden;
    flex-direction: row;
    position: relative;
    background: var(--bg);
  }
  /* フッターナビ → 左サイドバーナビ */
  .nav {
    flex-direction: column;
    border-top: none;
    border-right: 1px solid var(--bdr);
    width: 60px;
    min-width: 60px;
    max-width: 60px;
    flex-shrink: 0;
    padding: 12px 0;
    order: -1;
    justify-content: flex-start;
    gap: 4px;
    overflow: hidden;
  }
  .nav-btn {
    flex: none;
    width: 60px;
    padding: 12px 0;
    font-size: 8px;
  }
  /* コンテンツエリアが残りの幅を取る */
  .screen {
    flex: 1;
    min-width: 0;
  }
  .scroll {
    padding-bottom: 60px;
    width: 100%;
    overflow-x: hidden;
  }
  .log-item, .word-item {
    width: 100%;
    box-sizing: border-box;
  }
  .play-btn {
    flex-shrink: 1;
    min-width: 0;
  }
  /* 録音・読み上げバーをapp内に収める */
  .rec-bar {
    position: absolute;
    bottom: 0;
    left: 60px;
    right: 0;
    border-radius: 0;
  }
  /* toast/del-confirmをapp内基準に */
  .toast {
    position: absolute;
    bottom: 20px;
  }
  .del-confirm {
    position: absolute;
    bottom: 20px;
  }
}