/* 工具箱 · tools.zzy.skin */
:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --border: #d9dee5;
  --text: #1f2430;
  --dim: #6b7280;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --danger: #dc2626;
  --ok: #16a34a;
  --ta-bg: #ffffff;
  --card-bg: #ffffff;
  --hover: #eef2f7;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08);
}
html[data-theme="dark"] {
  --bg: #11151c;
  --panel: #171c26;
  --border: #2a3242;
  --text: #e6e9ef;
  --dim: #8b93a3;
  --accent: #3b82f6;
  --accent-text: #ffffff;
  --danger: #f87171;
  --ok: #4ade80;
  --ta-bg: #10141b;
  --card-bg: #171c26;
  --hover: #1f2735;
  --shadow: none;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 system-ui, "Segoe UI", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-size: 16px; font-weight: 700; }
.brand .sub { font-weight: 400; font-size: 12px; color: var(--dim); margin-left: 8px; }
.top-actions { display: flex; align-items: center; gap: 10px; }
.clock { font-variant-numeric: tabular-nums; color: var(--dim); font-size: 13px; }
.layout {
  display: flex;
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
  gap: 24px;
}
.side {
  width: 200px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav-item {
  display: flex;
  flex-direction: column;
  text-align: left;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: none;
  color: var(--text);
  cursor: pointer;
  font: inherit;
}
.nav-item b { font-size: 14px; }
.nav-item i { font-style: normal; font-size: 12px; color: var(--dim); }
.nav-item:hover { background: var(--hover); }
.nav-item.active {
  background: var(--hover);
  border-color: var(--accent);
}
.main { flex: 1; min-width: 0; }
.tool h2 { margin: 0 0 14px; font-size: 18px; }
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.btn {
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: var(--accent-text);
  padding: 7px 14px;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn.icon { padding: 6px 10px; }
.lbl {
  display: block;
  font-size: 12px;
  color: var(--dim);
  margin: 10px 0 4px;
}
.ta {
  width: 100%;
  min-height: 120px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--ta-bg);
  color: var(--text);
  font: 13px/1.5 Consolas, Menlo, "Courier New", monospace;
  resize: vertical;
}
.ta:focus, .in:focus { outline: 2px solid var(--accent); outline-offset: 0; }
.in {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--ta-bg);
  color: var(--text);
  font: inherit;
  min-width: 180px;
}
.in.num { min-width: 80px; }
.in.grow { flex: 1; min-width: 220px; }
.chk {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--dim);
  font-size: 13px;
}
.msg { font-size: 13px; color: var(--dim); }
.msg.err { color: var(--danger); }
.msg.ok { color: var(--ok); }
.kv { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }
.kv .row-line {
  display: flex;
  gap: 10px;
  align-items: baseline;
}
.kv .k {
  flex-shrink: 0;
  width: 110px;
  color: var(--dim);
  font-size: 12px;
}
.kv .v {
  font-family: Consolas, Menlo, monospace;
  font-size: 13px;
  word-break: break-all;
}
.kv .v.mono { font-size: 13px; }
.dim { color: var(--dim); }
.mono { font-family: Consolas, Menlo, monospace !important; }
.qrbox {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 6px;
}
.qr-target { background: #fff; padding: 12px; border-radius: 6px; min-height: 1px; min-width: 1px; }
.qr-target img, .qr-target canvas { display: block; }
.foot {
  text-align: center;
  color: var(--dim);
  font-size: 12px;
  padding: 14px;
  border-top: 1px solid var(--border);
}
@media (max-width: 760px) {
  .layout { flex-direction: column; padding: 14px; gap: 14px; }
  .side {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .nav-item { flex-shrink: 0; }
  .nav-item i { display: none; }
  .kv .k { width: 90px; }
}