:root {
  --primary: #0f766e;
  --primary-2: #14b8a6;
  --primary-soft: #e6f4f1;
  --bg: #f2f7f6;
  --card: #ffffff;
  --text: #12312d;
  --muted: #6b807d;
  --border: #e0ebe8;
  --danger: #dc2626;
  --warn: #b45309;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(15, 118, 110, 0.08);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; }

.container { max-width: 1080px; margin: 0 auto; padding: 24px 16px 60px; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; font-size: 18px; color: var(--primary); letter-spacing: 0.5px; }
.brand span { font-size: 11px; font-weight: 400; color: var(--muted); margin-left: 6px; letter-spacing: 1px; }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.tenant-chip { background: var(--primary-soft); color: var(--primary); padding: 4px 12px; border-radius: 99px; font-size: 13px; }

.btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; border: none; border-radius: 10px; padding: 10px 18px;
  font-size: 14px; cursor: pointer; transition: 0.15s;
  box-shadow: 0 4px 12px rgba(15, 118, 110, 0.25);
}
.btn:hover { filter: brightness(1.06); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--primary); border: 1px solid var(--border); box-shadow: none; }
.btn.ghost:hover { background: var(--primary-soft); }
.btn.small { padding: 6px 12px; font-size: 13px; border-radius: 8px; }
.btn.danger { background: #fff; color: var(--danger); border: 1px solid #f3d1d1; box-shadow: none; }
.btn.wide { width: 100%; padding: 13px; font-size: 16px; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); margin-bottom: 18px;
}
.card h3 { margin: 0 0 14px; font-size: 16px; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; gap: 10px; }
.card-head h3 { margin: 0; }

.center-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, #e6f4f1 0%, #f2f7f6 45%, #eef6f4 100%); padding: 20px;
}
.login-card {
  width: 100%; max-width: 380px; background: #fff; border-radius: 20px;
  padding: 36px 30px; box-shadow: 0 20px 50px rgba(15, 118, 110, 0.12); border: 1px solid var(--border);
}
.login-card h1 { margin: 0 0 4px; font-size: 26px; color: var(--primary); letter-spacing: 1px; text-align: center; }
.login-card .sub { text-align: center; color: var(--muted); font-size: 13px; margin: 0 0 24px; }
.login-card input {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px;
  margin-bottom: 12px; font-size: 15px; outline: none; background: #fbfdfd;
}
.login-card input:focus { border-color: var(--primary-2); box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.12); }
.login-card .btn { width: 100%; padding: 12px; margin-top: 4px; }
.hint { color: var(--muted); font-size: 12px; text-align: center; margin-top: 18px; }
.err { color: var(--danger); font-size: 13px; min-height: 18px; margin: 6px 0 0; }

.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 18px; }
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; text-align: center; box-shadow: var(--shadow);
}
.stat-num { font-size: 30px; font-weight: 700; color: var(--primary); line-height: 1.3; }
.stat-label { color: var(--muted); font-size: 13px; }

.inline-form { display: flex; gap: 10px; flex-wrap: wrap; }
.inline-form input {
  flex: 1; min-width: 150px; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: 10px; font-size: 14px; outline: none; background: #fbfdfd;
}
.inline-form input:focus { border-color: var(--primary-2); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left; color: var(--muted); font-weight: 500; font-size: 12px;
  padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
td { padding: 11px 10px; border-bottom: 1px solid #f0f5f4; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: 12px; }
.badge.green { background: #e6f6ef; color: #0f8a5f; }
.badge.gray { background: #eef1f0; color: #82908d; }
.badge.red { background: #fdecec; color: #c33; }
.muted { color: var(--muted); font-weight: 400; font-size: 13px; }
.empty { color: var(--muted); text-align: center; padding: 26px 0; font-size: 14px; }

.grid-2 { display: grid; grid-template-columns: 400px 1fr; gap: 18px; align-items: start; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }
.qr-card { text-align: center; }
.qr-frame { display: inline-block; padding: 12px; background: #fff; border: 1px solid var(--border); border-radius: 16px; }
.qr-frame img { display: block; width: 300px; height: 300px; }
@media (max-width: 420px) { .qr-frame img { width: 240px; height: 240px; } }
.countdown { margin-top: 12px; font-weight: 600; color: var(--primary); }
.qr-url { font-size: 11px; color: var(--muted); word-break: break-all; margin-top: 6px; padding: 0 10px; }
.warn { color: var(--warn); }
.page-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin: 6px 0 18px; }
.page-title h2 { margin: 0; font-size: 22px; }
.page-actions { display: flex; gap: 8px; }

.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%) translateY(20px);
  background: #12312d; color: #fff; padding: 10px 20px; border-radius: 99px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: 0.25s; z-index: 99;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.h5-page {
  min-height: 100vh; background: linear-gradient(165deg, #0f766e, #14b8a6 60%, #5eead4);
  display: flex; align-items: center; justify-content: center; padding: 24px 18px;
}
.h5-card {
  width: 100%; max-width: 420px; background: #fff; border-radius: 22px;
  padding: 30px 26px; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.2);
}
.h5-brand { font-size: 13px; color: var(--primary); letter-spacing: 2px; text-align: center; margin-bottom: 6px; }
.h5-card h2 { text-align: center; font-size: 20px; margin: 0 0 22px; }
.h5-card label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
.h5-card input {
  width: 100%; padding: 13px 14px; border: 1px solid var(--border); border-radius: 12px;
  font-size: 16px; outline: none; background: #fbfdfd;
}
.h5-card input:focus { border-color: var(--primary-2); box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.12); }
.req { color: var(--danger); }
.h5-card .btn { margin-top: 20px; }
.done { text-align: center; padding: 18px 0; }
.done-icon {
  width: 64px; height: 64px; line-height: 64px; border-radius: 50%;
  background: #e6f6ef; color: #0f8a5f; font-size: 32px; margin: 0 auto 12px;
}
.done h3 { margin: 0 0 6px; }