/* walxn.cn — IP 查询页 */

:root {
  --bg: #f7f6f2;
  --ink: #1b1b18;
  --muted: #6f6b63;
  --line: #e3e1da;
  --line-strong: #c7c3ba;
  --err: #a4342a;
  --ok: #2f6b3a;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, Menlo, monospace;
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  background: var(--bg);
  color: var(--ink);
  min-height: 100dvh;
}

.page {
  max-width: 620px;
  margin: 0 auto;
  padding: 0 24px;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ---------- 页眉 / 页脚 ---------- */

.site-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 0 14px;
  border-bottom: 1px solid var(--line);
}

.site-mark { text-decoration: none; }

.mark {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--bg);
  background: var(--ink);
  padding: 4px 6px;
  border-radius: 4px;
}

.site-tag { font-size: 12.5px; color: var(--muted); }

.site-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 14px 0 22px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted);
}

.site-foot code {
  font-family: var(--mono);
  font-size: 12px;
  background: #edece6;
  padding: 1px 6px;
  border-radius: 3px;
}

.foot-meta { display: inline-flex; align-items: baseline; gap: 14px; }

.icp {
  font-size: 12.5px;
  color: var(--muted);
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
}

.icp:hover { color: var(--ink); text-decoration-color: currentColor; }

/* ---------- IP 展示 ---------- */

.content {
  margin: auto 0;
  padding: 48px 0;
}

.label {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
}

.ip-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.ip {
  font-family: var(--mono);
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  word-break: break-all;
}

.ip.is-loading {
  font-weight: 400;
  color: var(--muted);
}

.ip.is-error {
  font-family: inherit;
  font-size: 22px;
  font-weight: 500;
  color: var(--err);
}

.net { font-size: 13px; color: var(--muted); }

/* ---------- 请求详情 ---------- */

.facts {
  margin: 28px 0 0;
  border-top: 1px solid var(--line);
}

.fact {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
}

.fact dt { color: var(--muted); }

.fact dd {
  margin: 0;
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}

/* ---------- 操作区 ---------- */

.actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
}

.btn {
  font: inherit;
  font-size: 13px;
  line-height: 1;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.btn:hover:not(:disabled) { border-color: #8f8b81; }

.btn:active:not(:disabled) { background: var(--bg); }

.btn:disabled {
  color: #a9a59c;
  border-color: var(--line);
  background: transparent;
  cursor: default;
}

.btn.is-ok { color: var(--ok); border-color: var(--ok); }

.api-link {
  margin-left: auto;
  font-size: 13px;
  color: var(--muted);
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
}

.api-link:hover { color: var(--ink); text-decoration-color: currentColor; }

/* ---------- 其他 ---------- */

:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 480px) {
  .content { padding: 36px 0; }
  .fact { grid-template-columns: 72px 1fr; gap: 12px; }
}