:root {
  --bg: #f9fafb;
  --surface: #fff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --primary: #4f46e5;
  --primary-light: #ede9fe;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "Segoe UI", sans-serif;
       background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; }
nav { display: flex; align-items: center; padding: 12px 28px; background: var(--surface);
      border-bottom: 1px solid var(--line); gap: 14px; box-shadow: 0 1px 0 rgba(0,0,0,.03); }
nav .brand { font-weight: 700; font-size: 16px; }
nav a { color: var(--text); text-decoration: none; padding: 6px 12px; border-radius: 6px; font-size: 14px; }
nav a:hover { background: var(--primary-light); }
nav a.active { background: var(--primary); color: #fff; }
nav .spacer { flex: 1; }
nav .muted { color: var(--muted); }
nav .logout { color: var(--danger); }
main { max-width: 1200px; margin: 28px auto; padding: 0 28px; }
h1 { font-size: 22px; font-weight: 600; margin: 0 0 18px; }
h2 { font-size: 17px; font-weight: 600; margin: 18px 0 12px; }
h3 { font-size: 14px; font-weight: 600; margin: 14px 0 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.muted { color: var(--muted); font-size: 13px; }
.mono { font-family: ui-monospace, Consolas, monospace; }
code { background: #f3f4f6; padding: 2px 6px; border-radius: 4px; font-family: ui-monospace, Consolas, monospace; font-size: 13px; }
pre { background: #1f2937; color: #d1d5db; padding: 14px 18px; border-radius: 8px; overflow-x: auto;
      font-family: ui-monospace, Consolas, monospace; font-size: 12.5px; line-height: 1.5; }
pre.json { max-height: 400px; }

button, .btn { background: var(--primary); color: #fff; border: 0; padding: 8px 18px; border-radius: 6px; cursor: pointer; font-size: 14px; }
button:hover, .btn:hover { background: #3730a3; }
button.danger { background: var(--danger); }
button.danger:hover { background: #b91c1c; }

input[type=text], input[type=password], input[type=number], input[type=file], select, textarea {
  display: inline-block; margin-top: 4px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 14px;
  font-family: inherit; background: #fff;
}
input[type=file] { padding: 6px; }
textarea { width: 80%; resize: vertical; font-family: inherit; }
label { display: block; margin: 8px 0; }

.flashes { margin-bottom: 18px; }
.flash { padding: 10px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 8px; }
.flash.error { background: #fee2e2; color: #991b1b; }
.flash.success { background: #d1fae5; color: #065f46; }
.flash.warning { background: #fef3c7; color: #92400e; }

.login-box { max-width: 380px; margin: 80px auto; padding: 36px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.login-box h1 { text-align: center; margin-bottom: 24px; }
.login-box input { width: 100%; }
.login-box button { width: 100%; padding: 11px; }
.login-box .hint { text-align: center; color: var(--muted); margin-top: 18px; font-size: 13px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: 14px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
        padding: 16px 18px; text-decoration: none; color: inherit; transition: all 0.15s; display: block; }
.card:hover { border-color: var(--primary); box-shadow: 0 4px 14px rgba(79,70,229,.08); transform: translateY(-1px); }
.head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.name { font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.badge { font-size: 10px; padding: 2px 6px; border-radius: 99px; font-weight: 600; }
.badge.update { background: #fef3c7; color: #92400e; }
.row { display: flex; justify-content: space-between; font-size: 12.5px; margin: 4px 0; align-items: center; }
.row .k { color: var(--muted); }
.row .v { font-family: ui-monospace, Consolas, monospace; max-width: 60%; text-overflow: ellipsis; overflow: hidden; white-space: nowrap; }

.pill { display: inline-flex; align-items: center; padding: 2px 9px; border-radius: 99px; font-size: 11px; font-weight: 600; }
.pill.on { background: #d1fae5; color: #065f46; }
.pill.off { background: #e5e7eb; color: #6b7280; }
.dot { width: 7px; height: 7px; border-radius: 50%; display: inline-block; margin-right: 5px; }
.dot.on { background: #10b981; }
.dot.off { background: #9ca3af; }

.bar { display: flex; align-items: center; margin: 6px 0; font-size: 11.5px; }
.bar-l { width: 36px; color: var(--muted); }
.bar-bg { flex: 1; height: 6px; background: #f3f4f6; border-radius: 3px; margin: 0 8px; overflow: hidden; }
.bar-fg { height: 100%; background: var(--primary); border-radius: 3px; transition: width 0.3s; }
.bar-r { font-family: ui-monospace, Consolas, monospace; font-size: 11px; min-width: 70px; text-align: right; }

.empty { padding: 60px 40px; background: var(--surface); border: 2px dashed var(--line); border-radius: 10px; text-align: center; color: var(--muted); }
.back { color: var(--primary); text-decoration: none; font-size: 13px; }
.back:hover { text-decoration: underline; }

.detail-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); gap: 14px; margin-top: 20px; }
.detail-card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; }
.detail-card.full { grid-column: 1 / -1; }

.setting-block { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 20px 22px; margin-bottom: 18px; }
.setting-block label { display: block; margin: 8px 0; }
.setting-block input[type=text], .setting-block input[type=password], .setting-block input[type=number], .setting-block select {
  display: block; padding: 8px 10px; margin-top: 4px; border: 1px solid var(--line); border-radius: 6px; min-width: 240px;
}
.setting-block button { margin-top: 10px; }
.key-box { display: flex; align-items: center; gap: 8px; margin: 10px 0; }
.key-box code { flex: 1; padding: 10px 14px; font-size: 13px; word-break: break-all; }

table.data { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
table.data th { background: #f9fafb; padding: 10px 14px; text-align: left; font-weight: 600; font-size: 13px; color: var(--muted); }
table.data td { padding: 10px 14px; border-top: 1px solid var(--line); font-size: 13px; }
table.data form { display: inline; }
table.data button { padding: 4px 10px; font-size: 12px; margin-left: 4px; }
table.data a { color: var(--primary); text-decoration: none; margin-right: 8px; font-size: 12px; }
table.data a:hover { text-decoration: underline; }

/* console quick button on dashboard card */
.card .head { position: relative; }
.card-btn { display:inline-block; padding:4px 10px; border-radius:6px; background: var(--primary, #2563eb); color:#fff; font-size:12px; text-decoration:none; font-weight:500; line-height:1.4; white-space:nowrap; transition: background .15s, transform .1s; margin-left:8px; }
.card-btn:hover { background:#1d4ed8; transform: translateY(-1px); }