/* ============================================================
   backupkit.css — BackupKitUI 樣式(bk- 前綴,自帶、可主題化)
   顏色 / 圓角走 CSS 變數,未定義用以下 fallback。覆寫即可換主題。
   ============================================================ */
:root {
  --bk-accent: #C8860D;      --bk-accent-soft: #f5e9d0;
  --bk-bg: #faf7f1;          --bk-card: #ffffff;      --bk-soft: #f3efe6;
  --bk-text: #2b2b2b;       --bk-text-soft: #7a7a7a;  --bk-text-mute: #9a9a9a;
  --bk-line: #e5e0d5;       --bk-line-soft: #efeae0;
  --bk-danger: #c0392b;     --bk-success: #2e7d4f;
  --bk-warn-bg: #fbf3e0;    --bk-warn-text: #8a6d1a;
  --bk-r: 14px;
}

/* ---------- 頁首 ---------- */
.bk-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--bk-line-soft); background: var(--bk-bg); }
.bk-header h1 { font-size: 18px; font-weight: 700; margin: 0; color: var(--bk-text); }
.bk-icon-btn { background: none; border: none; padding: 6px; cursor: pointer; color: var(--bk-text); display: inline-flex; align-items: center; font-size: 16px; }

/* ---------- 主頁清單 ---------- */
.bk-list { padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.bk-summary { display: flex; gap: 12px; background: var(--bk-soft); border-radius: var(--bk-r); padding: 16px; }
.bk-summary-stat { flex: 1; }
.bk-label { font-size: 12px; color: var(--bk-text-soft); }
.bk-value { font-size: 17px; font-weight: 700; color: var(--bk-text); margin-top: 3px; }

.bk-row { display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; background: var(--bk-card); border: 1px solid var(--bk-line); border-radius: var(--bk-r); padding: 16px; cursor: pointer; }
.bk-row-icon { width: 44px; height: 44px; flex: none; border-radius: 50%; background: var(--bk-soft); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.bk-row-text { flex: 1; min-width: 0; }
.bk-row-title { font-size: 16px; font-weight: 700; color: var(--bk-text); }
.bk-row-sub { font-size: 13px; color: var(--bk-text-soft); margin-top: 2px; }
.bk-row-chevron { color: var(--bk-text-mute); font-size: 20px; }

/* ---------- 快照列表 ---------- */
.bk-group-title { font-size: 13px; font-weight: 700; color: var(--bk-text-soft); margin: 6px 2px -4px; }
.bk-snap-group { background: var(--bk-card); border: 1px solid var(--bk-line); border-radius: var(--bk-r); overflow: hidden; }
.bk-snap-row { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 10px; width: 100%; text-align: left; background: none; border: none; border-bottom: 1px solid var(--bk-line-soft); padding: 15px 16px; cursor: pointer; }
.bk-snap-row:last-child { border-bottom: none; }
.bk-snap-name { font-size: 16px; font-weight: 700; color: var(--bk-text); }
.bk-snap-meta { text-align: center; }
.bk-snap-ago { font-size: 13px; color: var(--bk-text-soft); }
.bk-snap-time { font-size: 12px; color: var(--bk-text-mute); margin-top: 2px; }
.bk-snap-count { display: flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 700; color: var(--bk-text); white-space: nowrap; }
.bk-empty { padding: 20px; text-align: center; color: var(--bk-text-mute); font-size: 14px; }

/* ---------- 按鈕 ---------- */
.bk-btn { display: block; width: 100%; box-sizing: border-box; padding: 13px 16px; font-size: 15px; font-weight: 700; border-radius: 12px; border: 1.5px solid transparent; cursor: pointer; text-align: center; }
.bk-btn:disabled { opacity: 0.55; cursor: default; }
.bk-btn-primary { background: var(--bk-accent); color: #fff; }
.bk-btn-outline { background: transparent; border-color: var(--bk-line); color: var(--bk-text); }
.bk-btn-danger { background: transparent; border-color: var(--bk-danger); color: var(--bk-danger); }

/* ---------- Modal ---------- */
.bk-modal { position: fixed; inset: 0; z-index: 9000; display: flex; align-items: flex-end; justify-content: center; }
.bk-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.4); }
.bk-card { position: relative; width: 100%; max-width: 520px; max-height: 92vh; overflow-y: auto; background: var(--bk-card); border-radius: 18px 18px 0 0; padding: 8px 18px 24px; box-shadow: 0 -6px 32px rgba(0,0,0,0.18); animation: bkUp 0.22s ease; }
@media (min-width: 560px) { .bk-modal { align-items: center; } .bk-card { border-radius: 18px; } }
@keyframes bkUp { from { transform: translateY(24px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.bk-handle { width: 40px; height: 4px; border-radius: 99px; background: var(--bk-line); margin: 6px auto 10px; }
.bk-modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.bk-modal-header h2 { font-size: 20px; font-weight: 700; margin: 0; color: var(--bk-text); }
.bk-modal-body { display: block; }

/* ---------- Modal 內容 ---------- */
.bk-stat-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--bk-line-soft); font-size: 14px; }
.bk-stat-row:last-child { border-bottom: none; }
.bk-stat-row .bk-label { color: var(--bk-text-soft); }
.bk-stat-row .bk-value { font-size: 14px; font-weight: 600; margin: 0; }
.bk-confirm-section { margin-bottom: 16px; }
.bk-confirm-section h3 { font-size: 14px; font-weight: 700; color: var(--bk-text-soft); margin: 0 0 4px; }
.bk-warning { background: var(--bk-warn-bg); color: var(--bk-warn-text); font-size: 13px; line-height: 1.6; padding: 12px 14px; border-radius: 10px; margin: 4px 0 16px; }
.bk-actions { display: flex; gap: 10px; }
.bk-actions .bk-btn { flex: 1; }

/* ---------- 表單(設定)---------- */
.bk-field { margin-bottom: 16px; }
.bk-flabel { display: block; font-size: 14px; font-weight: 700; color: var(--bk-text); margin-bottom: 8px; }
.bk-fhint { font-size: 12px; color: var(--bk-text-mute); margin-top: 6px; line-height: 1.5; }
.bk-input { width: 100%; box-sizing: border-box; padding: 12px 14px; font-size: 16px; border: 1.5px solid var(--bk-line); border-radius: 12px; background: var(--bk-card); color: var(--bk-text); outline: none; }
.bk-input:focus { border-color: var(--bk-accent); }
.bk-seg { display: flex; background: var(--bk-soft); border-radius: 12px; padding: 4px; gap: 4px; }
.bk-seg-opt { flex: 1; padding: 10px; border: none; border-radius: 9px; background: transparent; font-size: 15px; font-weight: 700; color: var(--bk-text-soft); cursor: pointer; }
.bk-seg-opt.active { background: var(--bk-card); color: var(--bk-text); box-shadow: 0 1px 3px rgba(0,0,0,0.1); }