@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500&display=swap');
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#fff;--bg2:#f6f6f2;--bg3:#eeecea;
  --text:#1a1a1a;--text2:#666;--text3:#aaa;
  --border:rgba(0,0,0,0.09);--border2:rgba(0,0,0,0.18);
  --accent:#1a1a1a;--green:#1d9e75;--red:#e24b4a;--blue:#378add;
  --r:10px;--rl:16px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top:    env(safe-area-inset-top,    0px);
}
/* ── iOS Safari 全般対応 ── */
html{
  height: -webkit-fill-available;   /* 100vh の高さバグ回避 */
  overscroll-behavior: none;        /* バウンススクロール防止 */
}
body{
  font-family:'Noto Sans JP',sans-serif;
  background:var(--bg3);color:var(--text);
  min-height:100vh;
  min-height:-webkit-fill-available;
  display:flex;justify-content:center;
  overscroll-behavior:none;
  -webkit-text-size-adjust:100%;    /* テキスト自動拡大防止 */
}
.app{
  width:100%;max-width:430px;background:var(--bg);
  min-height:100vh;min-height:-webkit-fill-available;
  display:flex;flex-direction:column;
  padding-bottom: var(--safe-bottom); /* ホームバー対応 */
}
/* スクロール領域にモメンタムスクロール付与 */
.modal-sheet-inner,.home-screen,.group-screen{
  -webkit-overflow-scrolling:touch;
}
/* 全入力欄の共通iOS対応
   font-size:16px → フォーカス時のズーム防止
   appearance:none → iOS独自スタイル除去（既に個別指定済みだがここで統一） */
input,select,textarea{
  font-size:16px;
  -webkit-appearance:none;
  appearance:none;
  border-radius:0; /* iOSのデフォルト角丸除去 */
}

/* ── Header ── */
.header{padding:12px 16px 8px;border-bottom:0.5px solid var(--border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--bg);z-index:20}
.header h1{font-size:17px;font-weight:500}
.header-ver{font-size:10px;color:var(--text3);display:block;text-align:right;margin-top:1px}

/* ── Screens ── */
.screen{display:none;flex:1;flex-direction:column}
.screen.active{display:flex}

/* ══ ローディング ══ */
.loading-wrap{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}
.loading-spinner{width:30px;height:30px;border-radius:50%;border:3px solid var(--border2);border-top-color:var(--text);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{font-size:13px;color:var(--text2)}

/* ══ ホーム画面 ══ */
.home-screen{padding:16px 16px 24px;flex:1;overflow-y:auto}
.intro-card{background:var(--bg2);border-radius:var(--rl);padding:16px;margin-bottom:18px}
.intro-title{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:500;margin-bottom:8px}
.intro-text{font-size:12.5px;color:var(--text2);line-height:1.6}

.primary-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:6px;padding:13px;border:none;border-radius:var(--r);background:var(--text);color:#fff;font-size:14.5px;font-weight:500;cursor:pointer;font-family:inherit;margin-bottom:22px}
.primary-btn:active{opacity:.8}

.section-title{font-size:11px;font-weight:500;color:var(--text2);letter-spacing:.05em;text-transform:uppercase;margin-bottom:10px}
.section-title-row{display:flex;align-items:center;justify-content:space-between;margin:18px 0 10px}

.group-history-item{display:flex;align-items:center;justify-content:space-between;background:var(--bg2);border-radius:var(--r);margin-bottom:8px;overflow:hidden}
.group-history-main{flex:1;min-width:0;display:flex;align-items:center;justify-content:space-between;padding:13px 10px 13px 14px;cursor:pointer}
.group-history-main:active{background:var(--bg3)}
.group-history-name{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.group-history-main i{color:var(--text3);font-size:16px;flex-shrink:0;margin-left:8px}
.group-history-del{flex-shrink:0;background:none;border:none;border-left:0.5px solid var(--border);color:var(--text3);cursor:pointer;padding:0 14px;align-self:stretch;font-size:18px;display:flex;align-items:center}
.group-history-del:active{background:rgba(226,75,74,0.08);color:var(--red)}
.history-empty{text-align:center;color:var(--text3);font-size:13px;padding:20px 0}

/* グループ一覧へ戻るボタン */
.back-home-btn{display:flex;align-items:center;gap:6px;background:none;border:none;color:var(--text2);font-size:13px;cursor:pointer;font-family:inherit;padding:2px 0 10px}
.back-home-btn:active{color:var(--text)}
.back-home-btn i{font-size:16px}

/* ══ グループ画面 ══ */
.group-screen{padding:16px 16px 28px;flex:1;overflow-y:auto}
.group-top-card{background:var(--bg2);border-radius:var(--rl);padding:14px 16px;margin-bottom:6px}
.group-top-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.group-name{font-size:16px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lock-badge{display:flex;align-items:center;gap:3px;font-size:11px;color:var(--red);border:1px solid var(--red);border-radius:20px;padding:3px 9px;flex-shrink:0}
.member-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.member-tag{font-size:12px;background:var(--bg);border:0.5px solid var(--border2);border-radius:20px;padding:4px 11px;color:var(--text2)}
.member-tag.me{color:var(--text);font-weight:500;border-color:var(--text)}
.share-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:6px;padding:9px;border:0.5px solid var(--border2);border-radius:var(--r);background:var(--bg);color:var(--text);font-size:12.5px;cursor:pointer;font-family:inherit}
.share-btn:active{background:var(--bg3)}

.add-expense-btn{display:flex;align-items:center;gap:4px;padding:6px 11px;border:0.5px solid var(--border2);border-radius:var(--r);background:none;color:var(--text);font-size:12px;cursor:pointer;font-family:inherit}
.add-expense-btn:active{background:var(--bg2)}

.expense-card{background:var(--bg2);border-radius:var(--r);padding:12px 14px;margin-bottom:8px;cursor:default}
.expense-card.editable{cursor:pointer}
.expense-card.editable:active{background:var(--bg3)}
.expense-card-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:4px}
.expense-card-desc{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.expense-card-amt{font-size:14.5px;font-weight:500;white-space:nowrap;color:var(--red)}
.expense-card-sub{font-size:11.5px;color:var(--text2)}
.expense-empty{text-align:center;color:var(--text3);font-size:13px;padding:24px 0}

/* ══ 清算結果 ══ */
.balance-card{display:flex;align-items:center;justify-content:space-between;background:var(--bg2);border-radius:var(--r);padding:11px 14px;margin-bottom:6px}
.balance-name{font-size:13.5px;font-weight:500}
.balance-val{font-size:14px;font-weight:500}
.balance-val.plus{color:var(--blue)}
.balance-val.minus{color:var(--red)}
.balance-val.zero{color:var(--text3)}
.balance-label{font-size:11px;color:var(--text2);margin-left:5px;font-weight:400}

.transfer-list{margin-top:10px}
.transfer-row{display:flex;align-items:center;gap:8px;background:var(--bg2);border-radius:var(--r);padding:11px 14px;margin-bottom:6px;font-size:13.5px}
.transfer-from{color:var(--red);font-weight:500}
.transfer-to{color:var(--blue);font-weight:500}
.transfer-arrow{color:var(--text3)}
.transfer-amt{margin-left:auto;font-weight:500}
.transfer-empty{text-align:center;color:var(--text3);font-size:13px;padding:14px 0}

.send-mp-btn{display:flex;align-items:center;gap:5px;margin-top:8px;padding:7px 12px;border:0.5px solid var(--blue);border-radius:var(--r);background:none;color:var(--blue);font-size:12px;cursor:pointer;font-family:inherit}
.send-mp-btn:active{background:var(--bg2)}
.send-mp-btn.sent{border-color:var(--text3);color:var(--text3)}

/* ── ロック ── */
.lock-section{margin-top:20px}
.lock-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:6px;padding:12px;border:0.5px solid var(--red);border-radius:var(--r);background:none;color:var(--red);font-size:13.5px;font-weight:500;cursor:pointer;font-family:inherit}
.lock-btn:active{background:rgba(226,75,74,0.08)}
.locked-note{text-align:center;font-size:12px;color:var(--text3);margin-top:16px}

/* ══ グループ未発見 ══ */
.notfound-wrap{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;text-align:center}
.notfound-wrap i{font-size:40px;color:var(--text3)}
.notfound-text{font-size:13.5px;color:var(--text2);line-height:1.7}

/* ══ MODAL / 共通モーダル（money_pocket と同仕様） ══ */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:100;display:flex;align-items:flex-end;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s;touch-action:none}
.modal-overlay.open{opacity:1;pointer-events:all}
.modal-sheet{background:var(--bg);border-radius:20px 20px 0 0;width:100%;max-width:430px;box-sizing:border-box;transform:translateY(20px);transition:transform .2s;max-height:92vh;overflow:hidden}
.modal-sheet-inner{padding:20px 16px calc(36px + var(--safe-bottom));overflow-y:auto;overflow-x:hidden;max-height:92vh;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.modal-overlay.open .modal-sheet{transform:translateY(0)}
.modal-title{font-size:16px;font-weight:500;margin-bottom:16px}
.join-desc{font-size:12.5px;color:var(--text2);margin-bottom:14px;line-height:1.6}
.form-row{margin-bottom:12px}
.form-label{font-size:12px;color:var(--text2);margin-bottom:5px;display:block}
.form-input{width:100%;border:0.5px solid var(--border2);border-radius:var(--r);padding:9px 12px;font-size:16px;font-family:inherit;background:var(--bg);color:var(--text);outline:none;box-sizing:border-box;-webkit-appearance:none;appearance:none;display:block}
.form-input:focus{border-color:var(--text)}
.form-select{width:100%;border:0.5px solid var(--border2);border-radius:var(--r);padding:9px 12px;font-size:16px;font-family:inherit;background:var(--bg);color:var(--text);outline:none;appearance:none;-webkit-appearance:none;cursor:pointer;box-sizing:border-box}
.form-select:focus{border-color:var(--text)}
.modal-actions{display:flex;gap:8px;margin-top:16px}
.modal-actions button{flex:1;padding:11px;border-radius:var(--r);font-size:14px;cursor:pointer;font-family:inherit}
.btn-cancel{background:none;border:0.5px solid var(--border2);color:var(--text2)}
.btn-save{background:var(--text);border:none;color:#fff;font-weight:500}
.btn-delete{background:none;border:0.5px solid var(--red);color:var(--red)}

/* toggle switch */
.toggle-row{display:flex;align-items:center;justify-content:space-between}
.toggle-switch{width:46px;height:26px;border-radius:13px;background:var(--border2);cursor:pointer;position:relative;transition:background .2s;flex-shrink:0;-webkit-tap-highlight-color:transparent}
.toggle-switch.on{background:var(--text)}
.toggle-thumb{width:22px;height:22px;border-radius:50%;background:#fff;position:absolute;top:2px;left:2px;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.25);pointer-events:none}
.toggle-switch.on .toggle-thumb{transform:translateX(20px)}

/* ══ 立替モーダル内・対象者チェックリスト/比率入力 ══ */
.target-row{display:flex;align-items:center;justify-content:space-between;padding:9px 2px;border-bottom:0.5px solid var(--border)}
.target-row:last-child{border-bottom:none}
.target-row-label{display:flex;align-items:center;gap:9px;font-size:14px}
.target-checkbox{width:20px;height:20px;border-radius:6px;border:1.5px solid var(--border2);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:all .15s}
.target-checkbox.checked{background:var(--text);border-color:var(--text);color:#fff;font-size:13px}
.ratio-row{display:flex;align-items:center;justify-content:space-between;padding:7px 2px;gap:10px}
.ratio-row-name{font-size:13.5px;color:var(--text2);flex-shrink:0}
.ratio-input{width:70px;border:0.5px solid var(--border2);border-radius:var(--r);padding:7px 10px;font-size:15px;font-family:inherit;text-align:right;-webkit-appearance:none;appearance:none}