/* QR 簽到系統（WhatsApp 版）— 樣式 */
:root {
  --green: #25D366;
  --green-deep: #128C7E;
  --dark: #075E54;
  --ink: #111827;
  --sub: #6b7280;
  --line: #e5e7eb;
  --bg: #f4f7f6;
  --card: #ffffff;
  --danger: #ef4444;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang HK", "Microsoft JhengHei", "Segoe UI", -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
}

/* 頂欄 */
#topbar {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(90deg, var(--dark), var(--green-deep));
  color: #fff; padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between;
  box-shadow: 0 2px 10px rgba(0,0,0,.18);
}
.brand { font-weight: 800; font-size: 18px; letter-spacing: .3px; }
.brand-sub { font-weight: 400; font-size: 12px; opacity: .85; margin-left: 8px; }
#topbar nav { display: flex; gap: 8px; }
.nav-btn {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px; padding: 6px 14px; font-size: 13px; cursor: pointer;
}
.nav-btn.active { background: #fff; color: var(--dark); font-weight: 700; }
.nav-btn.ghost:hover { background: rgba(255,255,255,.15); }
.hidden { display: none !important; }

/* 主區 */
#app { max-width: 1080px; margin: 0 auto; padding: 24px 20px 80px; }
.loading { text-align: center; color: var(--sub); padding: 60px; }

/* 登入 */
.login-wrap { min-height: 70vh; display: flex; align-items: center; justify-content: center; }
.login-card {
  background: var(--card); border-radius: 20px; padding: 40px 36px; width: 100%; max-width: 380px;
  box-shadow: 0 12px 40px rgba(7,94,84,.16); text-align: center;
}
.login-logo { font-size: 52px; }
.login-card h1 { font-size: 22px; margin: 8px 0 2px; color: var(--dark); }
.login-sub { color: var(--sub); font-size: 13px; margin: 0 0 22px; }
.login-card form { display: flex; flex-direction: column; gap: 12px; }
.login-card input {
  padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; font-size: 15px; text-align: center;
}
.login-card input:focus { outline: none; border-color: var(--green); }
.pw-box { position: relative; display: flex; }
.pw-box input { width: 100%; }
.pw-eye {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: transparent; border: 0; font-size: 16px; cursor: pointer; padding: 6px;
  opacity: .7;
}
.pw-eye:hover { opacity: 1; }
.login-hint { font-size: 12px; color: var(--sub); margin-top: 16px; line-height: 1.7; }

/* 按鈕 */
.btn {
  display: inline-block; border: 0; border-radius: 12px; padding: 11px 18px; font-size: 14px;
  font-weight: 600; cursor: pointer; text-decoration: none; background: #eef2f1; color: var(--ink);
  font-family: inherit;
}
.btn.primary { background: var(--green); color: #04281f; }
.btn.primary:hover { filter: brightness(1.06); }
.btn.ghost { background: transparent; border: 1.5px solid var(--line); color: #374151; }
.btn.small { padding: 7px 12px; font-size: 13px; border-radius: 10px; }
.btn.danger-ghost { color: var(--danger); border-color: #fecaca; }
.btn:hover { filter: brightness(.97); }

/* 頁頭 */
.pg-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.pg-head h2 { margin: 8px 0 4px; font-size: 22px; }
.ev-meta { color: var(--sub); font-size: 13px; }

/* 活動卡片 */
.event-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.ev-card {
  background: var(--card); border-radius: 16px; padding: 18px; cursor: pointer;
  box-shadow: 0 3px 12px rgba(0,0,0,.05); border: 1px solid var(--line);
  transition: transform .12s ease, box-shadow .12s ease;
  position: relative;
}
.ev-card:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(7,94,84,.15); }
.ev-del {
  position: absolute; top: 10px; right: 10px; background: #fef2f2; border: 0;
  border-radius: 8px; padding: 5px 7px; cursor: pointer; font-size: 13px; opacity: .75;
}
.ev-del:hover { background: #fee2e2; opacity: 1; }
.ev-badge {
  position: absolute; top: 10px; left: 10px; background: #f1f5f9; color: #6b7280;
  font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 999px;
}
.ev-card.completed { opacity: .6; filter: saturate(.55); }
.ev-card.completed .bar-fill { background: #cbd5e1; }
.done-head { margin: 28px 0 10px; color: var(--sub); font-size: 13px; font-weight: 700; }
.done-grid .ev-card:hover { transform: none; }
.ev-name { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.ev-stats { display: flex; gap: 22px; margin: 14px 0 10px; }
.stat b { display: block; font-size: 20px; }
.stat span { font-size: 12px; color: var(--sub); }
.bar { height: 8px; background: #eef2f1; border-radius: 999px; overflow: hidden; }
.bar.tall { height: 14px; margin: 14px 0; }
.bar-fill { height: 100%; background: linear-gradient(90deg, var(--green-deep), var(--green)); border-radius: 999px; transition: width .4s ease; }
.empty { color: var(--sub); text-align: center; padding: 40px 10px; }

/* 分頁 */
.tabs { display: flex; gap: 8px; margin-bottom: 18px; border-bottom: 2px solid var(--line); flex-wrap: wrap; }
.tab {
  background: transparent; border: 0; padding: 10px 16px; font-size: 15px; cursor: pointer;
  color: var(--sub); border-bottom: 3px solid transparent; margin-bottom: -2px; font-family: inherit;
}
.tab.active { color: var(--dark); font-weight: 700; border-bottom-color: var(--green); }

/* 工具列 */
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 14px 0; }
.count { color: var(--sub); font-size: 13px; margin-left: auto; }

/* 表格 */
.table-wrap { background: var(--card); border-radius: 14px; border: 1px solid var(--line); overflow: auto; }
.table-wrap.slim { max-height: 520px; overflow-y: auto; }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th {
  text-align: left; font-size: 12px; color: var(--sub); text-transform: none;
  padding: 11px 14px; border-bottom: 1px solid var(--line); background: #fafbfb; white-space: nowrap;
}
th.sel, td.sel { width: 30px; text-align: center; padding-left: 10px; padding-right: 4px; }
.sel input { width: 16px; height: 16px; cursor: pointer; accent-color: var(--green-deep); }
td { padding: 11px 14px; border-bottom: 1px solid #f3f4f6; vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
.p-name { font-weight: 600; }
.p-sub { font-size: 12px; color: var(--sub); margin-top: 2px; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
.dim { color: var(--sub); }
.ops { white-space: nowrap; text-align: right; }
.op {
  background: #eef2f1; border: 0; border-radius: 9px; padding: 6px 9px; font-size: 14px;
  cursor: pointer; margin-left: 4px;
}
.op.big { background: var(--green); font-weight: 700; font-size: 13px; padding: 8px 13px; color: #04281f; }
.op.danger:hover { background: #fee2e2; }
.op:hover { filter: brightness(.95); }

/* 徽章 */
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge.ok { background: #d1fae5; color: #065f46; }
.badge.idle { background: #f3f4f6; color: #6b7280; }

/* 面板 */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; margin-bottom: 16px; }
.panel h4 { margin: 0 0 12px; font-size: 15px; }
.wa-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 16px; align-items: start; }
@media (max-width: 900px) { .wa-layout { grid-template-columns: 1fr; } }
.tpl-pre {
  background: #f8faf9; border: 1px dashed #d1d5db; border-radius: 10px; padding: 12px 14px;
  white-space: pre-wrap; font-family: inherit; font-size: 13px; line-height: 1.7; color: #374151; margin: 0;
}
.tpl-pre.preview { border-style: solid; border-color: #d1fae5; background: #f0fdf7; }
.hint { font-size: 12px; color: var(--sub); line-height: 1.7; margin: 8px 0 0; }
code { background: #f1f5f9; padding: 1px 6px; border-radius: 6px; font-size: 12px; font-family: ui-monospace, Menlo, monospace; }

/* 報告 */
.report-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .report-grid { grid-template-columns: 1fr; } }
.chart-box { position: relative; height: 220px; margin-top: 4px; }
.chart-box canvas { max-height: 220px; }
.no-chart { color: var(--sub); font-size: 13px; line-height: 1.9; padding: 10px 0; }
.big-stats { display: flex; gap: 26px; margin: 6px 0 4px; }
.big b { font-size: 30px; display: block; color: var(--dark); }
.big span { font-size: 12px; color: var(--sub); }
.recent { list-style: none; margin: 0; padding: 0; }
.recent li { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px dashed #eef2f1; }
.recent li:last-child { border-bottom: 0; }

/* 表單 */
.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 600; color: #374151; }
.form input, .form textarea {
  font-family: inherit; font-size: 14px; padding: 11px 13px; border: 1.5px solid var(--line);
  border-radius: 11px; background: #fff; color: var(--ink);
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--green); }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form .hint { font-weight: 400; }
.maxw { max-width: 620px; }

/* 對話框 */
dialog {
  border: 0; border-radius: 18px; padding: 26px; width: min(480px, 92vw);
  box-shadow: 0 24px 70px rgba(0,0,0,.3);
}
dialog::backdrop { background: rgba(7, 40, 36, .45); }
.dlg-btns { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }
.dlg-btns .btn:first-child { margin-right: auto; }

/* Toast */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: #111827; color: #fff; padding: 12px 22px; border-radius: 999px;
  font-size: 14px; z-index: 99; box-shadow: 0 8px 26px rgba(0,0,0,.3);
  max-width: 88vw; text-align: center;
}
.toast.show { animation: pop .18s ease; }
.toast.err { background: var(--danger); }
.toast.warn { background: #d97706; }
@keyframes pop { from { opacity: 0; transform: translateX(-50%) translateY(8px); } to { opacity: 1; transform: translateX(-50%); } }

/* 自訂確認框（取代 window.confirm，iOS 支援） */
.confirm-mask {
  position: fixed; inset: 0; z-index: 200; background: rgba(7, 40, 36, .45);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.confirm-box {
  background: #fff; border-radius: 16px; padding: 26px; max-width: 360px; width: 100%;
  box-shadow: 0 24px 70px rgba(0,0,0,.3); text-align: center;
}
.confirm-box p { margin: 0 0 18px; font-size: 15px; line-height: 1.7; }
.confirm-box .dlg-btns { margin-top: 0; }