/* reset + base */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--t-16);
  line-height: 1.5;
  color: var(--km-ink-900);
  background: var(--km-paper);
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; padding: 0; }
img { display: block; max-width: 100%; }
input, textarea, select { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; }

.tabular { font-variant-numeric: tabular-nums; }
.mono { font-family: var(--font-mono); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* layout helpers — mobile-first */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--s-4); }
@media (min-width: 720px) { .container { padding: 0 var(--s-6); } }

/* body bottom spacer — sticky mobile CTA */
@media (max-width: 900px) {
  body { padding-bottom: 76px; }
}

/* hide on mobile, show on tablet+ */
.show-md { display: none !important; }
@media (min-width: 720px) { .show-md { display: revert !important; } }
.hide-md { }
@media (min-width: 720px) { .hide-md { display: none !important; } }

/* skip link */
.skip { position: absolute; left: -9999px; top: 0; padding: var(--s-3) var(--s-4); background: var(--km-deep); color: white; z-index: 100; }
.skip:focus { left: var(--s-2); top: var(--s-2); }

/* focus */
*:focus-visible {
  outline: 2px solid var(--km-deep-2);
  outline-offset: 2px;
  border-radius: 2px;
}

/* selection */
::selection { background: var(--km-accent-soft); color: var(--km-ink-900); }

/* scrollbar slim */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--km-line-strong); border-radius: 5px; }
::-webkit-scrollbar-track { background: transparent; }

/* page background gradient on header */
.app {
  min-height: 100vh;
  background: var(--km-paper);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--km-line);
}
.header__inner {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  height: 56px;
}
@media (min-width: 720px) {
  .header__inner { gap: var(--s-4); height: 60px; }
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: var(--t-16);
  color: var(--km-ink-900);
  white-space: nowrap;
}
@media (min-width: 720px) {
  .brand { font-size: var(--t-18); }
}
/* hide wordmark on very small screens — keep mark only */
@media (max-width: 380px) {
  .brand > span:not(.brand__mark) { display: none; }
}
.brand__mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--km-deep) 0%, var(--km-deep-2) 100%);
  position: relative;
  flex-shrink: 0;
}
.brand__mark::before {
  content: "";
  position: absolute;
  inset: 6px 6px 6px 6px;
  border: 1.6px solid #fff;
  border-radius: 50%;
  border-top-color: transparent;
  transform: rotate(-30deg);
}
.brand__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 5px;
  width: 1.6px;
  height: 18px;
  background: #fff;
  transform: translateX(-50%);
}
.brand small {
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--km-ink-500);
  margin-left: 4px;
}
.search-bar {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--s-2);
  background: var(--km-paper-2);
  border: 1px solid var(--km-line);
  border-radius: var(--r-pill);
  padding: 0 var(--s-3);
  height: 40px;
  min-width: 0;
  max-width: 560px;
  transition: border-color .15s, background .15s;
}
@media (min-width: 720px) {
  .search-bar { padding: 0 var(--s-4); }
}
/* hide ↵ hint on mobile to save space */
.search-bar kbd { display: none; }
@media (min-width: 720px) { .search-bar kbd { display: inline-block; } }
.search-bar:focus-within {
  border-color: var(--km-deep-2);
  background: var(--km-paper);
  box-shadow: 0 0 0 3px rgba(31, 111, 178, 0.12);
}
.search-bar input {
  border: 0;
  background: transparent;
  outline: none;
  flex: 1;
  font-size: var(--t-14);
  color: var(--km-ink-900);
}
.search-bar input::placeholder { color: var(--km-ink-400); }
.search-bar kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  background: var(--km-paper);
  border: 1px solid var(--km-line);
  border-radius: 4px;
  color: var(--km-ink-500);
  flex-shrink: 0;
}
.header__nav {
  display: none;
  gap: var(--s-4);
  font-size: var(--t-14);
  color: var(--km-ink-600);
}
@media (min-width: 900px) { .header__nav { display: flex; } }
.header__nav a { padding: var(--s-2) 0; }
.header__nav a:hover { color: var(--km-deep); }

/* Footer — mobile-first */
.footer {
  margin-top: var(--s-10);
  padding: var(--s-8) 0 var(--s-6);
  background: var(--km-ink-900);
  color: var(--km-ink-300);
  font-size: var(--t-13);
}
@media (min-width: 720px) {
  .footer { margin-top: var(--s-16); padding: var(--s-12) 0 var(--s-8); }
}
.footer__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-6);
}
@media (min-width: 720px) {
  .footer__cols { grid-template-columns: 1fr 1fr; gap: var(--s-8); }
}
@media (min-width: 900px) {
  .footer__cols { grid-template-columns: 2fr repeat(3, 1fr); }
}
/* On very small screens, brand col spans the row above the link cols */
@media (max-width: 540px) {
  .footer__cols > div:first-child { grid-column: 1 / -1; }
}
.footer h4 {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--km-ink-400);
  margin-bottom: var(--s-3);
}
.footer ul li { margin-bottom: var(--s-2); }
.footer ul li a:hover { color: white; }
.footer__bottom {
  margin-top: var(--s-6);
  padding-top: var(--s-4);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  font-size: var(--t-12);
  color: var(--km-ink-500);
  gap: var(--s-2);
}
@media (min-width: 720px) {
  .footer__bottom { margin-top: var(--s-8); flex-direction: row; justify-content: space-between; flex-wrap: wrap; }
}
.footer__bottom-meta {
  display: inline-flex;
  align-items: center;
  gap: var(--s-4);
  flex-wrap: wrap;
}
.footer__admin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 8px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--r-pill);
  color: var(--km-ink-300);
  font-size: 11px;
  letter-spacing: 0.02em;
  background: rgba(255,255,255,0.02);
  transition: all .12s;
}
.footer__admin:hover {
  color: white;
  border-color: var(--km-accent);
  background: rgba(242,163,16,0.08);
}

/* Buttons — min 44px touch target on mobile */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  height: 44px;
  padding: 0 var(--s-4);
  border-radius: var(--r-2);
  font-size: var(--t-14);
  font-weight: 600;
  transition: background .15s, color .15s, transform .05s, box-shadow .15s;
  white-space: nowrap;
}
@media (min-width: 720px) {
  .btn { height: 40px; }
}
.btn:active { transform: translateY(0.5px); }
.btn--primary { background: var(--km-deep); color: white; }
.btn--primary:hover { background: var(--km-deep-3); }
.btn--accent { background: var(--km-accent); color: var(--km-ink-900); }
.btn--accent:hover { background: var(--km-accent-2); color: white; }
.btn--ghost { color: var(--km-ink-700); border: 1px solid var(--km-line); background: var(--km-paper); }
.btn--ghost:hover { border-color: var(--km-line-strong); background: var(--km-paper-2); }
.btn--lg { height: 48px; padding: 0 var(--s-5); font-size: var(--t-16); }
.btn--sm { height: 32px; padding: 0 var(--s-3); font-size: var(--t-13); }
.btn--block { width: 100%; }

/* badges & chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  padding: 4px 10px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 500;
  background: var(--km-paper-2);
  color: var(--km-ink-600);
  border: 1px solid var(--km-line);
  line-height: 1.4;
}
.chip--good { background: var(--km-good-soft); color: var(--km-good); border-color: transparent; }
.chip--warn { background: var(--km-warn-soft); color: var(--km-warn); border-color: transparent; }
.chip--bad { background: var(--km-bad-soft); color: var(--km-bad); border-color: transparent; }
.chip--deep { background: var(--km-deep-soft); color: var(--km-deep); border-color: transparent; }
.chip--solid { background: var(--km-deep); color: white; border-color: transparent; }
.chip--accent { background: var(--km-accent-soft); color: var(--km-accent-2); border-color: transparent; }

/* skeleton */
.skel { background: linear-gradient(90deg, var(--km-paper-2), var(--km-line), var(--km-paper-2)); background-size: 200% 100%; animation: skel 1.4s linear infinite; border-radius: var(--r-1); }
@keyframes skel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Breadcrumb */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--t-13);
  color: var(--km-ink-500);
  padding: var(--s-4) 0 var(--s-2);
}
.breadcrumbs a { color: var(--km-ink-500); }
.breadcrumbs a:hover { color: var(--km-deep); }
.breadcrumbs__sep { color: var(--km-ink-300); }
.breadcrumbs__current { color: var(--km-ink-700); font-weight: 500; }

/* generic card */
.card {
  background: var(--km-paper);
  border: 1px solid var(--km-line);
  border-radius: var(--r-3);
  overflow: hidden;
}
.card--soft { background: var(--km-paper-2); border-color: transparent; }