/*
 * Kando Data site shell: header, navigation and footer.
 * Single source for both the Next.js pages (imported in src/app/layout.tsx)
 * and the static /blog/ HTML (linked as /assets/site-shell.css).
 */
.kd-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 clamp(20px, 4vw, 56px);
  background: rgba(255, 250, 245, 0.95);
  border-top: 3px solid #d96f3d;
  border-bottom: 1px solid rgba(217, 111, 61, 0.2);
  box-shadow: 0 6px 24px rgba(185, 84, 42, 0.06);
  color: #1f1a17;
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 14px;
  line-height: 1.4;
}
.kd-header a { color: inherit; text-decoration: none; }
.kd-brand { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.kd-mark { width: 24px; height: 23px; display: inline-flex; align-items: flex-end; gap: 3px; }
.kd-mark span { display: block; width: 5px; border-radius: 1px 1px 0 0; background: #1f1a17; }
.kd-mark span:nth-child(1) { height: 13px; background: #d96f3d; }
.kd-mark span:nth-child(2) { height: 21px; }
.kd-mark span:nth-child(3) { height: 16px; background: #4f9da8; }
.kd-wordmark { font-weight: 700; font-size: 17px; letter-spacing: -0.01em; }
.kd-wordmark span { color: #b9542a; font-weight: 600; }
.kd-nav { display: flex; align-items: center; gap: 6px; }
.kd-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border-radius: 999px;
  color: #2b2420;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: color 0.15s ease, background 0.15s ease;
}
.kd-nav a:hover { color: #b9542a; background: rgba(217, 111, 61, 0.09); }
.kd-nav a[aria-current="page"], .kd-nav a[data-active="true"] { color: #fff; background: #d96f3d; box-shadow: 0 4px 12px rgba(217, 111, 61, 0.28); }
/* Industry colour dots: finance / legal / medical / office. */
.kd-nav a[data-key="finance"]::before, .kd-nav a[data-key="legal"]::before, .kd-nav a[data-key="medical"]::before, .kd-nav a[data-key="office"]::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
}
.kd-nav a[data-key="finance"]::before { background: #d96f3d; }
.kd-nav a[data-key="legal"]::before { background: #7773c5; }
.kd-nav a[data-key="medical"]::before { background: #4f9da8; }
.kd-nav a[data-key="office"]::before { background: #57a97d; }
.kd-nav a[data-active="true"]::before, .kd-nav a[aria-current="page"]::before { background: #fff; }
.kd-nav-divider { width: 1px; height: 20px; margin: 0 8px; background: rgba(31, 26, 23, 0.14); }
.kd-tools { display: flex; align-items: center; gap: 10px; flex: none; }
.kd-lang {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(217, 111, 61, 0.35);
  border-radius: 999px;
  background: #fff;
  color: #9a8f88;
  font: 600 13px "SFMono-Regular", Menlo, Consolas, monospace;
  letter-spacing: 0.04em;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.kd-lang i { font-style: normal; opacity: 0.5; }
.kd-lang .on { color: #b9542a; }
.kd-lang:hover { border-color: #d96f3d; color: #1f1a17; }
.kd-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  background: #1f1a17;
  color: #fff !important;
  font-weight: 600;
  font-size: 14px;
  transition: background 0.15s ease;
}
.kd-cta:hover { background: #b9542a; }
.kd-menu { display: none; position: relative; }
.kd-menu > summary {
  list-style: none;
  cursor: pointer;
  width: 42px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(217, 111, 61, 0.35);
  border-radius: 10px;
  background: #fff;
}
.kd-menu > summary::-webkit-details-marker { display: none; }
.kd-menu > summary span, .kd-menu > summary span::before, .kd-menu > summary span::after {
  display: block;
  width: 16px;
  height: 2px;
  background: #1f1a17;
  content: "";
  position: relative;
  border-radius: 1px;
}
.kd-menu > summary span::before { position: absolute; top: -5px; }
.kd-menu > summary span::after { position: absolute; top: 5px; }
.kd-menu-panel {
  position: absolute;
  right: 0;
  top: 50px;
  width: min(86vw, 300px);
  padding: 10px;
  display: grid;
  gap: 2px;
  background: #fff;
  border: 1px solid rgba(217, 111, 61, 0.2);
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(31, 26, 23, 0.14);
}
.kd-menu-panel a { padding: 11px 12px; border-radius: 8px; color: #2b2420; font-size: 15px; font-weight: 600; }
.kd-menu-panel a:hover { background: rgba(217, 111, 61, 0.09); color: #b9542a; }
.kd-menu-panel .kd-menu-group { padding: 12px 12px 4px; color: #9a8f88; font: 10.5px "SFMono-Regular", Menlo, Consolas, monospace; letter-spacing: 0.12em; text-transform: uppercase; }

@media (max-width: 1420px) {
  .kd-nav { gap: 2px; }
  .kd-nav a { padding: 8px 10px; font-size: 14.5px; }
  .kd-nav-divider { margin: 0 4px; }
}
/* English labels are longer: hand the nav to the menu button earlier. */
html[lang="en"] .kd-nav a { padding: 8px 9px; font-size: 14px; }
@media (max-width: 1260px) { html[lang="en"] .kd-nav { display: none; } html[lang="en"] .kd-menu { display: block; } }
@media (max-width: 1140px) {
  .kd-nav { display: none; }
  .kd-menu { display: block; }
}
@media (max-width: 460px) {
  .kd-cta { display: none; }
}

.kd-footer {
  background: #0d1114;
  color: #a9b2b0;
  border-top: 1px solid rgba(241, 241, 236, 0.08);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}
.kd-footer a { color: inherit; text-decoration: none; }
.kd-footer a:hover { color: #fff; }
.kd-footer-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 64px clamp(20px, 5vw, 80px) 36px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
}
.kd-footer .kd-wordmark { color: #f1f1ec; }
.kd-footer-lede { margin: 18px 0 0; max-width: 340px; color: #8c9795; }
.kd-footer h2 { margin: 0 0 14px; color: #6f7a79; font: 500 10.5px "SFMono-Regular", Menlo, Consolas, monospace; letter-spacing: 0.14em; text-transform: uppercase; }
.kd-footer ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.kd-footer-base {
  max-width: 1320px;
  margin: 0 auto;
  padding: 20px clamp(20px, 5vw, 80px) 32px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(241, 241, 236, 0.08);
  color: #6f7a79;
  font: 11.5px "SFMono-Regular", Menlo, Consolas, monospace;
  letter-spacing: 0.04em;
}
@media (max-width: 860px) {
  .kd-footer-inner { grid-template-columns: 1fr 1fr; }
  .kd-footer-brand { grid-column: 1 / -1; }
}