@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&family=Kaisei+Opti:wght@400;700&display=swap');

:root {
  --bg:        #f0f4f8;
  --bg2:       #ffffff;
  --bg3:       #e4ecf4;
  --card:      #ffffff;
  --border:    rgba(0,0,0,0.08);
  --border-l:  rgba(0,0,0,0.05);
  --accent:    #2a7ab8;
  --accent-l:  #3a8ac8;
  --accent-bg: rgba(42,122,184,0.08);
  --green:     #2a9860;
  --green-bg:  rgba(42,152,96,0.08);
  --red:       #c04040;
  --red-bg:    rgba(192,64,64,0.08);
  --orange:    #c07820;
  --text:      #1a2838;
  --text-2:    #4a6070;
  --text-3:    #8090a0;
  --shadow:    0 2px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius:    14px;
  --radius-sm: 10px;
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html,body { width:100%; min-height:100vh; background:var(--bg); color:var(--text); font-family:'Noto Sans TC',sans-serif; -webkit-font-smoothing:antialiased; }

/* ── Layout ── */
.coach-layout { display:grid; grid-template-columns:220px 1fr; grid-template-rows:56px 1fr; min-height:100vh; }

/* ── 頂部 Bar ── */
.top-bar { grid-column:1/-1; background:var(--card); border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; padding:0 24px; position:sticky; top:0; z-index:100; box-shadow:0 1px 8px rgba(0,0,0,0.06); }
.top-logo { font-family:'Kaisei Opti',serif; font-size:.95rem; font-weight:700; color:var(--text); letter-spacing:.05em; display:flex; align-items:center; gap:10px; }
.top-logo-sub { font-size:.62rem; color:var(--text-3); letter-spacing:.2em; }
.top-right { display:flex; align-items:center; gap:12px; }
.top-badge { font-size:.65rem; padding:3px 12px; border-radius:100px; background:var(--accent-bg); border:1px solid rgba(42,122,184,0.2); color:var(--accent); letter-spacing:.1em; }
.top-coach-name { font-size:.78rem; color:var(--text-2); font-weight:700; }
.top-logout { font-size:.72rem; color:var(--text-3); cursor:pointer; background:none; border:none; font-family:inherit; letter-spacing:.1em; transition:color .2s; }
.top-logout:hover { color:var(--red); }

/* ── 側邊欄 ── */
.sidebar { background:var(--card); border-right:1px solid var(--border); padding:16px 0; position:sticky; top:56px; height:calc(100vh - 56px); overflow-y:auto; }
.nav-item { display:flex; align-items:center; gap:10px; padding:11px 20px; cursor:pointer; text-decoration:none; color:var(--text-2); font-size:.82rem; letter-spacing:.04em; transition:all .2s; border-left:2px solid transparent; }
.nav-item:hover { color:var(--text); background:var(--bg); }
.nav-item.active { color:var(--accent); background:var(--accent-bg); border-left-color:var(--accent); font-weight:700; }
.nav-icon { font-size:1rem; width:20px; text-align:center; }

/* ── 主內容 ── */
.main-content { padding:24px 28px; overflow-y:auto; max-height:calc(100vh - 56px); background:var(--bg); }
.main-content::-webkit-scrollbar { width:4px; }
.main-content::-webkit-scrollbar-thumb { background:rgba(0,0,0,0.1); border-radius:2px; }

/* ── 頁面標題 ── */
.page-header { margin-bottom:20px; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:10px; }
.page-title { font-family:'Kaisei Opti',serif; font-size:1.3rem; font-weight:700; color:var(--text); }
.page-sub { font-size:.72rem; color:var(--text-3); letter-spacing:.1em; margin-top:3px; }

/* ── 卡片 ── */
.card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); }

/* ── 按鈕 ── */
.btn { padding:9px 18px; border:none; border-radius:8px; cursor:pointer; font-family:'Noto Sans TC',sans-serif; font-size:.8rem; font-weight:700; letter-spacing:.08em; transition:all .18s; -webkit-font-smoothing:antialiased; display:inline-flex; align-items:center; gap:6px; }
.btn:active { transform:scale(.98); }
.btn-primary { background:var(--accent); color:#fff; box-shadow:0 3px 12px rgba(42,122,184,0.3); }
.btn-primary:hover { background:var(--accent-l); transform:translateY(-1px); }
.btn-success { background:var(--green); color:#fff; box-shadow:0 3px 12px rgba(42,152,96,0.25); }
.btn-success:hover { background:#3aaa70; transform:translateY(-1px); }
.btn-danger  { background:rgba(192,64,64,0.1); border:1px solid rgba(192,64,64,0.25); color:var(--red); }
.btn-danger:hover { background:rgba(192,64,64,0.18); }
.btn-ghost   { background:var(--bg3); border:1px solid var(--border); color:var(--text-2); }
.btn-ghost:hover { background:var(--bg); }
.btn-sm { padding:6px 12px; font-size:.72rem; }
.btn-lg { padding:13px 28px; font-size:.9rem; }

/* ── 輸入框 ── */
.form-row { display:flex; flex-direction:column; gap:6px; margin-bottom:14px; }
.form-label { font-size:.72rem; color:var(--text-2); font-weight:700; letter-spacing:.1em; }
.form-input { padding:10px 14px; background:var(--bg); border:1.5px solid var(--border); border-radius:8px; color:var(--text); font-family:'Noto Sans TC',sans-serif; font-size:.88rem; outline:none; transition:border-color .2s, box-shadow .2s; width:100%; }
.form-input:focus { border-color:var(--accent); box-shadow:0 0 0 3px rgba(42,122,184,0.1); background:#fff; }
.form-input::placeholder { color:var(--text-3); }
select.form-input { cursor:pointer; }

/* ── 表格 ── */
.table-wrap { overflow-x:auto; }
.data-table { width:100%; border-collapse:collapse; }
.data-table th { text-align:left; padding:10px 14px; font-size:.65rem; color:var(--text-3); letter-spacing:.2em; text-transform:uppercase; font-weight:700; border-bottom:2px solid var(--border); background:var(--bg3); }
.data-table td { padding:12px 14px; font-size:.82rem; color:var(--text-2); border-bottom:1px solid var(--border-l); vertical-align:middle; }
.data-table tr:hover td { background:var(--bg3); color:var(--text); }
.data-table td:first-child { color:var(--text); font-weight:600; }

/* 刪除動畫 */
.row-removing { animation:rowOut .35s ease forwards; }
@keyframes rowOut { to { opacity:0; transform:translateX(16px); } }

/* ── 標籤 ── */
.tag { display:inline-block; padding:2px 10px; border-radius:100px; font-size:.65rem; letter-spacing:.1em; font-weight:700; }
.tag-blue   { background:var(--accent-bg); border:1px solid rgba(42,122,184,0.2); color:var(--accent); }
.tag-green  { background:var(--green-bg); border:1px solid rgba(42,152,96,0.2); color:var(--green); }
.tag-orange { background:rgba(192,120,32,0.1); border:1px solid rgba(192,120,32,0.25); color:var(--orange); }
.tag-gray   { background:var(--bg3); border:1px solid var(--border); color:var(--text-3); }

/* ── 搜尋列 ── */
.toolbar { display:flex; align-items:center; gap:10px; margin-bottom:16px; flex-wrap:wrap; }
.search-input { flex:1; min-width:200px; padding:9px 14px; background:var(--bg); border:1.5px solid var(--border); border-radius:8px; color:var(--text); font-family:'Noto Sans TC',sans-serif; font-size:.82rem; outline:none; transition:border-color .2s; }
.search-input:focus { border-color:var(--accent); }
.search-input::placeholder { color:var(--text-3); }

/* ── 彈窗 ── */
.modal-bg { position:fixed; inset:0; z-index:300; background:rgba(0,0,0,0.4); backdrop-filter:blur(4px); display:flex; align-items:center; justify-content:center; padding:20px; opacity:0; pointer-events:none; transition:opacity .25s; }
.modal-bg.show { opacity:1; pointer-events:all; }
.modal-box { background:var(--card); border-radius:var(--radius); padding:24px; width:100%; max-width:520px; box-shadow:var(--shadow-lg); transform:scale(.96) translateY(8px); transition:transform .25s; max-height:90vh; overflow-y:auto; }
.modal-bg.show .modal-box { transform:scale(1) translateY(0); }
.modal-title { font-family:'Kaisei Opti',serif; font-size:1.05rem; font-weight:700; color:var(--text); margin-bottom:18px; display:flex; align-items:center; justify-content:space-between; }
.modal-close { background:none; border:none; color:var(--text-3); cursor:pointer; font-size:1.1rem; transition:color .2s; }
.modal-close:hover { color:var(--text); }
.modal-actions { display:flex; gap:10px; margin-top:4px; }
.modal-actions .btn { flex:1; justify-content:center; padding:11px; }

/* ── Toast ── */
#coach-toast { position:fixed; top:70px; right:24px; z-index:500; padding:11px 20px; border-radius:10px; font-size:.8rem; font-weight:700; letter-spacing:.08em; opacity:0; transform:translateX(16px); transition:all .3s; pointer-events:none; font-family:'Noto Sans TC',sans-serif; }
#coach-toast.show { opacity:1; transform:translateX(0); }
#coach-toast.info    { background:#fff; border:1.5px solid rgba(42,122,184,0.3); color:var(--accent); box-shadow:var(--shadow); }
#coach-toast.success { background:#fff; border:1.5px solid rgba(42,152,96,0.3); color:var(--green); box-shadow:var(--shadow); }
#coach-toast.error   { background:#fff; border:1.5px solid rgba(192,64,64,0.3); color:var(--red); box-shadow:var(--shadow); }
#coach-toast.warn    { background:#fff; border:1.5px solid rgba(192,120,32,0.3); color:var(--orange); box-shadow:var(--shadow); }

/* ── 載入 ── */
.spinner { width:22px; height:22px; border-radius:50%; border:2px solid rgba(42,122,184,0.15); border-top-color:var(--accent); animation:spin .8s linear infinite; }
@keyframes spin { to { transform:rotate(360deg); } }
.loading-row td { text-align:center; padding:32px; color:var(--text-3); }
.empty-row td { text-align:center; padding:32px; color:var(--text-3); font-size:.82rem; }

/* ── 動畫 ── */
@keyframes fadeUp { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)} }
.fade-in { animation:fadeUp .35s ease both; }

/* ── 手機 RWD ── */
.mobile-nav { display:none; position:fixed; bottom:0; left:0; right:0; z-index:200; background:var(--card); border-top:1px solid var(--border); padding-bottom:env(safe-area-inset-bottom,0); box-shadow:0 -2px 12px rgba(0,0,0,0.06); }
.mobile-nav-inner { display:flex; }
.mobile-nav-item { flex:1; display:flex; flex-direction:column; align-items:center; gap:3px; padding:10px 4px; text-decoration:none; color:var(--text-3); font-size:.55rem; font-weight:700; letter-spacing:.06em; transition:color .18s; }
.mobile-nav-item.active { color:var(--accent); }
.mobile-nav-item .mni { font-size:1.2rem; line-height:1; }

@media (max-width:768px) {
  .coach-layout { grid-template-columns:1fr; }
  .sidebar { display:none; }
  .mobile-nav { display:block; }
  .main-content { padding:14px 14px 80px; max-height:calc(100vh - 56px); }
  .top-bar { padding:0 14px; }
  .top-logo-sub { display:none; }
  .data-table { min-width:500px; }
  .table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }
  .toolbar { flex-direction:column; align-items:stretch; }
  .search-input { min-width:unset; }
  .modal-box { max-width:100%; border-radius:16px 16px 0 0; position:fixed; bottom:0; left:0; right:0; margin:0; max-height:90vh; }
  .modal-bg { align-items:flex-end; padding:0; }
  #coach-toast { right:14px; left:14px; top:unset; bottom:76px; text-align:center; }
}