/* 家裡鐵門後台樣式：手機優先，支援深色模式 */
:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #667085;
  --line: #e3e7ee;
  --primary: #1f6feb;
  --ok: #1a7f37;
  --ok-bg: #dcf5e3;
  --bad: #c62828;
  --bad-bg: #fde4e4;
  --warn: #9a6700;
  --warn-bg: #fff4cc;
  --radius: 14px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419;
    --card: #1a2129;
    --text: #e6edf3;
    --muted: #8b949e;
    --line: #2d3640;
    --primary: #4c8dff;
    --ok: #56d364;
    --ok-bg: #12321c;
    --bad: #ff7b72;
    --bad-bg: #3a1618;
    --warn: #e3b341;
    --warn-bg: #3a2e0c;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
}
h1, h2 { margin: 0; }
h1 { font-size: 1.15rem; }
h2 { font-size: 1.05rem; display: flex; align-items: center; gap: 8px; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.hint { color: var(--warn); background: var(--warn-bg); padding: 8px 10px; border-radius: 10px; font-size: .9rem; }

/* ---- 上方列 ---- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 10px;
  padding: calc(env(safe-area-inset-top) + 10px) 16px 10px;
  background: var(--card); border-bottom: 1px solid var(--line);
}
.topbar h1 { flex: 1; }
.menu { position: relative; }
.menu summary { list-style: none; cursor: pointer; font-size: 1.4rem; padding: 2px 8px; }
.menu summary::-webkit-details-marker { display: none; }
.menu-list {
  position: absolute; right: 0; top: 40px; width: 200px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px; display: grid; gap: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.15);
}
.menu-who { margin: 0; color: var(--muted); font-size: .9rem; }

.wrap { max-width: 720px; margin: 0 auto; padding: 16px; display: grid; gap: 16px; padding-bottom: calc(env(safe-area-inset-bottom) + 24px); }
.doors { display: grid; gap: 16px; }
@media (min-width: 700px) { .doors { grid-template-columns: 1fr 1fr; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: grid; gap: 12px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---- 狀態標籤 ---- */
.pill { display: inline-block; font-size: .8rem; padding: 2px 10px; border-radius: 999px; background: var(--line); color: var(--muted); white-space: nowrap; }
.pill-ok { background: var(--ok-bg); color: var(--ok); }
.pill-bad { background: var(--bad-bg); color: var(--bad); }
.pill-warn { background: var(--warn-bg); color: var(--warn); }
.pill-wait { background: var(--line); color: var(--muted); }

/* ---- 鐵門卡片 ---- */
.door-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.door-head h2 { margin-right: auto; font-size: 1.25rem; }
.state-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--line); }
.state-label { color: var(--muted); }
.state-value { font-weight: 600; }
.state-open { color: var(--bad); }
.state-closed { color: var(--ok); }
.state-unknown { color: var(--muted); }
.actions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.door-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
body.is-offline .btn-action { opacity: .45; pointer-events: none; }

/* ---- 按鈕 ---- */
.btn {
  appearance: none; border: 1px solid var(--line); background: var(--card); color: var(--text);
  border-radius: 10px; padding: 10px 14px; font-size: 1rem; cursor: pointer; font-family: inherit;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-small { padding: 4px 10px; font-size: .85rem; }
.btn-action { padding: 16px 4px; font-weight: 700; font-size: 1.05rem; }
.btn-up { color: var(--bad); }
.btn-down { color: var(--ok); }
.btn-stop { background: var(--warn-bg); color: var(--warn); border-color: transparent; }

/* ---- 紀錄 ---- */
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: .92rem; }
.list li { padding: 6px 0; border-bottom: 1px solid var(--line); }
.notice { color: var(--primary); }
.who { color: var(--muted); }

/* ---- 提示 ---- */
.toast {
  position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom) + 20px); transform: translateX(-50%);
  max-width: calc(100% - 32px); background: #1c2430; color: #fff; padding: 10px 16px; border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25); z-index: 20;
}
.toast-error { background: var(--bad); }

/* ---- 登入頁 ---- */
.login-body { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: grid; gap: 12px; text-align: center; }
.login-card form { display: grid; gap: 8px; text-align: left; }
.login-card input:not([type=checkbox]) {
  width: 100%; padding: 12px; font-size: 1rem; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text);
}
.login-card .check { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.login-card .check input { width: 20px; height: 20px; }
.login-card .btn-primary { padding: 12px; margin-top: 6px; }
.login-logo { margin: 0 auto; border-radius: 14px; }
.error { color: var(--bad); background: var(--bad-bg); padding: 8px; border-radius: 10px; margin: 0; }

/* ---- 自製確認視窗 ---- */
.ask-backdrop {
  position: fixed; inset: 0; z-index: 30; background: rgba(0,0,0,.45);
  display: grid; place-items: center; padding: 16px;
}
.ask {
  width: 100%; max-width: 360px; background: var(--card); color: var(--text);
  border-radius: var(--radius); padding: 20px; box-shadow: 0 12px 32px rgba(0,0,0,.3);
}
.ask-text { margin: 0 0 16px; font-size: 1.05rem; font-weight: 600; }
.ask-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ask-actions .btn { padding: 12px; }