/* Shared look for the calculator clusters. Colours come from theme.css
   variables (--c1/--c2/--brand), so each cluster keeps its own accent. */
:root {
  --ink: #16202b;
  --muted: #5c6b7a;
  --line: #e3e9f0;
  --bg: #f6f8fb;
  --card: #fff;
  --accent: var(--brand, #2f6fed);
  --accent-dark: var(--brand-dark, #1d4fbf);
  --accent-soft: #eef3fb;
  --warn: #a3561a;
  --radius: 10px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 940px; margin: 0 auto; padding: 0 18px; }
.site-header { background: var(--card); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 16px; min-height: 56px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; color: var(--ink); }
.brand-icon { border-radius: 7px; }
.brand-text span { color: var(--accent); }
.site-nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; }
.site-nav a { color: var(--muted); }
.site-nav a.is-active { color: var(--accent); font-weight: 600; }
main { padding: 26px 0 40px; }
h1 { font-size: 30px; line-height: 1.25; margin: 4px 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 21px; margin: 30px 0 10px; letter-spacing: -0.01em; }
h3 { font-size: 17px; margin: 20px 0 6px; }
.lede { font-size: 17px; color: var(--muted); margin: 0 0 22px; }
.breadcrumbs { font-size: 13px; color: var(--muted); margin: 0 0 4px; }
.breadcrumbs ol { list-style: none; display: flex; gap: 6px; padding: 0; margin: 0; flex-wrap: wrap; }
.breadcrumbs li + li::before { content: "/"; margin-right: 6px; color: #b9c3ce; }

.tool {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin: 18px 0 8px;
  box-shadow: 0 1px 2px rgba(20, 40, 70, .04);
}
.fields { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field input, .field select {
  width: 100%;
  padding: 8px 10px;
  font: inherit;
  border: 1px solid #cfd8e5;
  border-radius: 8px;
  background: #fff;
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.field-wide { grid-column: 1 / -1; }
.field-check label { display: flex; align-items: center; gap: 8px; margin-top: 24px; font-size: 14px; color: var(--ink); }
.field-check input { width: auto; margin: 0; }

.result { margin-top: 18px; padding: 16px 18px; border-radius: 10px; background: var(--accent-soft); border: 1px solid #d8e4fb; }
.result-kind { margin: 0; font-size: 13px; font-weight: 600; color: var(--accent-dark); text-transform: uppercase; letter-spacing: .05em; }
.result-value { display: block; margin: 2px 0 0; font-size: 32px; line-height: 1.2; font-weight: 700; color: var(--accent-dark); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.result-sub { margin: 4px 0 0; font-size: 14px; color: var(--muted); }
.status { font-size: 13px; color: var(--warn); margin: 10px 0 0; min-height: 1.2em; }
.metrics { margin-top: 14px; border-top: 1px solid var(--line); }
.metric { display: flex; justify-content: space-between; gap: 14px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.metric-label { color: var(--muted); flex: none; }
.metric-value { font-variant-numeric: tabular-nums; text-align: right; overflow-wrap: anywhere; }
.metric-value.is-code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
.note { font-size: 13px; color: var(--muted); margin-top: 10px; overflow-wrap: anywhere; }

/* ---------- "What is my IP" panel ---------- */
.ip-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
  margin: 18px 0 6px;
  box-shadow: 0 1px 2px rgba(20, 40, 70, .04);
}
.ip-eyebrow { margin: 0; font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.ip-main { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 4px 0 2px; }
.ip-value { font-size: 40px; line-height: 1.15; font-weight: 700; color: var(--accent-dark); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.ip-summary { margin: 6px 0 0; color: var(--muted); font-size: 15px; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; line-height: 1.5; border: 1px solid transparent; }
.badge--home { background: #dcfce7; color: #14532d; border-color: #bbf7d0; }
.badge--warn { background: #fef3c7; color: #92400e; border-color: #fde68a; }
.badge--blue { background: #dbeafe; color: #1e3a8a; border-color: #bfdbfe; }
.badge--muted { background: #eef2f7; color: #475569; border-color: #e2e8f0; }
.ip-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.ip-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; margin: 14px 0; }
.ip-card h2 { font-size: 17px; margin: 0 0 8px; }
.ip-card .metrics { margin-top: 0; border-top: 0; }
.ip-card .metric:last-child { border-bottom: 0; }
.offscreen { position: fixed; left: -9999px; top: 0; }

.formula { display: block; margin: 10px 0; padding: 10px 12px; background: #f3f6fb; border: 1px solid var(--line); border-radius: 8px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px; overflow-x: auto; }

button, .btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 8px 14px;
}
button:hover, .btn:hover { background: var(--accent-dark); }
button.secondary { background: #fff; color: var(--accent); }
button[disabled] { opacity: .5; cursor: default; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }

table { width: 100%; border-collapse: collapse; margin: 12px 0 6px; font-size: 15px; background: var(--card); border: 1px solid var(--line); }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f3f6fb; font-size: 13px; color: var(--muted); font-weight: 600; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.table-scroll { max-height: 460px; overflow: auto; margin: 12px 0 6px; border: 1px solid var(--line); border-radius: 8px; }
.table-scroll table { margin: 0; border: 0; }
.table-scroll thead th { position: sticky; top: 0; z-index: 1; }

.callout { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--accent); padding: 12px 14px; border-radius: 8px; margin: 16px 0; }
.callout.is-warn { border-left-color: var(--warn); background: #fff8ef; }
.callout p { margin: 0; }
.callout p + p { margin-top: 8px; }

details.faq { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; margin: 8px 0; }
details.faq summary { cursor: pointer; font-weight: 600; }
details.faq p { margin: 8px 0 0; color: #34414f; }

.related { margin: 30px 0 0; padding: 16px 18px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.related h2 { margin: 0 0 8px; font-size: 16px; }
.related ul { margin: 0; padding-left: 18px; columns: 2; column-gap: 24px; }
.index { margin-top: 34px; }
.index-group { border-top: 1px solid var(--line); margin-top: 14px; padding-top: 12px; }
.index-group h3 { margin: 0 0 6px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.site-footer { border-top: 1px solid var(--line); background: var(--card); padding: 18px 0 26px; font-size: 13px; color: var(--muted); }
.site-footer p { margin: 4px 0; }

@media print {
  .site-header, .site-footer, .no-print, .breadcrumbs, .related, .actions { display: none !important; }
  body { background: #fff; }
  .tool, table, details.faq { box-shadow: none; }
}