*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ac: #E8400C;
  --bk: #111;
  --gd: #444;
  --gm: #888;
  --gl: #E8E8E8;
  --gb: #F6F6F4;
  --wh: #fff;
  --fh: 'Syne', sans-serif;
  --fb: 'DM Sans', sans-serif;
  --r: 6px;
  --mx: 860px;
}

body {
  font-family: var(--fb);
  color: var(--bk);
  background: var(--wh);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.6;
}

/* ── NAV ── */
.nav {
  border-bottom: 1.5px solid var(--gl);
  padding: 0 16px;
  position: sticky;
  top: 0;
  background: var(--wh);
  z-index: 100;
}
.nav-in {
  max-width: var(--mx);
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 52px;
  gap: 12px;
}
.logo {
  font-family: var(--fh);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  text-decoration: none;
  color: var(--bk);
}
.logo em { color: var(--ac); font-style: normal; }
.nsearch {
  flex: 1;
  max-width: 360px;
  position: relative;
}
.nsearch input {
  width: 100%;
  border: 1.5px solid var(--gl);
  border-radius: 20px;
  padding: 7px 14px 7px 32px;
  font-family: var(--fb);
  font-size: 13px;
  background: var(--gb);
  outline: none;
}
.nsearch input:focus { border-color: var(--ac); background: var(--wh); }
.si {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gm);
  font-size: 13px;
  pointer-events: none;
}
.nlinks { display: flex; gap: 20px; margin-left: auto; }
.nlinks a {
  font-size: 13px;
  font-weight: 500;
  color: var(--gd);
  text-decoration: none;
}
.nlinks a:hover { color: var(--ac); }

/* ── HERO ── */
.hero {
  background: var(--bk);
  color: var(--wh);
  padding: 48px 16px 44px;
  text-align: center;
}
.hero-in { max-width: 480px; margin: 0 auto; }
.hero h1 {
  font-family: var(--fh);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.hero h1 em { color: var(--ac); font-style: normal; }
.hero p { color: #aaa; font-size: 15px; margin-bottom: 24px; }
.hs {
  display: flex;
  max-width: 380px;
  margin: 0 auto;
  border: 2px solid #333;
  border-radius: 30px;
  overflow: hidden;
  background: #1a1a1a;
}
.hs input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 12px 18px;
  color: var(--wh);
  font-family: var(--fb);
  font-size: 14px;
}
.hs input::placeholder { color: #555; }
.hs button {
  background: var(--ac);
  border: none;
  color: white;
  padding: 0 22px;
  font-family: var(--fh);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
}

/* ── SECTION LABEL ── */
.slabel {
  font-family: var(--fh);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ac);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.slabel::after { content: ''; flex: 1; height: 1px; background: var(--gl); }

/* ── MAIN / GRID ── */
.main { max-width: var(--mx); margin: 0 auto; padding: 32px 16px; }
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
@media (min-width: 640px)  { .grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px)  { .grid { grid-template-columns: 1fr 1fr 1fr; } }

/* ── CATEGORY CARD ── */
.card {
  border: 1.5px solid var(--gl);
  border-radius: var(--r);
  padding: 20px;
  cursor: pointer;
  transition: border-color .15s, transform .15s;
  background: var(--wh);
  text-decoration: none;
  color: var(--bk);
  display: block;
}
.card:hover { border-color: var(--ac); transform: translateY(-2px); }
.card-icon { font-size: 26px; margin-bottom: 10px; }
.card-title { font-family: var(--fh); font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.card-desc { font-size: 12.5px; color: var(--gm); line-height: 1.5; }

/* ── HUB PAGE ── */
.hub-hdr { background: var(--bk); color: var(--wh); padding: 32px 16px; }
.hub-hdr-in { max-width: var(--mx); margin: 0 auto; }
.hub-title {
  font-family: var(--fh);
  font-size: clamp(26px, 5vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
}
.hub-sub { color: #888; font-size: 14px; margin-top: 6px; }
.hub-body { max-width: var(--mx); margin: 0 auto; padding: 28px 16px; }

/* ── BREADCRUMB ── */
.bc { font-size: 12px; color: #999; margin-bottom: 14px; display: flex; gap: 6px; align-items: center; }
.bc a { color: #888; text-decoration: none; }
.bc a:hover { color: var(--ac); }
.bc-sep { color: var(--gl); }
.bc-curr { color: var(--bk); }

/* ── ARTICLE LIST ── */
.alist { display: flex; flex-direction: column; }
.aitem {
  padding: 18px 0;
  border-bottom: 1px solid var(--gl);
  display: flex;
  gap: 12px;
  text-decoration: none;
  color: var(--bk);
}
.aitem:last-child { border-bottom: none; }
.aitem:hover .atitle { color: var(--ac); }
.anum {
  font-family: var(--fh);
  font-size: 11px;
  font-weight: 800;
  color: var(--gl);
  min-width: 28px;
  padding-top: 3px;
}
.atag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ac);
  margin-bottom: 3px;
}
.atitle { font-family: var(--fh); font-size: 15px; font-weight: 700; line-height: 1.3; transition: color .15s; }
.adesc { font-size: 12.5px; color: var(--gm); margin-top: 3px; }

/* ── ARTICLE PAGE ── */
.art-hdr { max-width: 740px; margin: 0 auto; padding: 28px 16px 0; }
.pill-row { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.pill {
  background: #fff0ec;
  color: var(--ac);
  border-radius: 20px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.art-title {
  font-family: var(--fh);
  font-size: clamp(26px, 5.5vw, 40px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.6px;
  margin-bottom: 14px;
}
.art-intro {
  font-size: 17px;
  color: var(--gd);
  line-height: 1.65;
  padding-bottom: 22px;
  border-bottom: 1.5px solid var(--gl);
}

/* ── ARTICLE BODY ── */
.art-body { max-width: 740px; margin: 0 auto; padding: 24px 16px 60px; }
.art-body h2 {
  font-family: var(--fh);
  font-size: 22px;
  font-weight: 700;
  margin: 36px 0 14px;
  letter-spacing: -0.3px;
}
.art-body h3 {
  font-family: var(--fh);
  font-size: 17px;
  font-weight: 700;
  margin: 24px 0 10px;
}
.art-body p { margin-bottom: 16px; line-height: 1.75; }
.art-body ul, .art-body ol { margin: 0 0 16px 22px; }
.art-body li { margin-bottom: 6px; line-height: 1.7; }
.art-body a { color: var(--ac); }
.art-body strong { font-weight: 700; }

/* ── INLINE CODE ── */
.art-body code {
  background: var(--gb);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13.5px;
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  color: #c7254e;
}

/* ── CODE BLOCKS ── */
.art-body pre {
  background: #1a1a1a;
  border-radius: var(--r);
  padding: 18px 20px;
  margin: 18px 0;
  overflow-x: auto;
}
.art-body pre code {
  background: none;
  padding: 0;
  font-size: 13.5px;
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  color: #e0e0e0;
  border-radius: 0;
}

/* Hugo/Chroma syntax highlighting */
.chroma .k, .chroma .kd, .chroma .kn, .chroma .kp, .chroma .kr, .chroma .kt { color: #ff79c6; }
.chroma .nf, .chroma .nx { color: #8be9fd; }
.chroma .s, .chroma .s1, .chroma .s2, .chroma .sb, .chroma .se { color: #f1fa8c; }
.chroma .c, .chroma .c1, .chroma .cm, .chroma .cp { color: #6272a4; }
.chroma .mi, .chroma .mf { color: #bd93f9; }
.chroma .err { color: #ff5555; }

/* ── TABLE ── */
.art-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 18px 0;
  border: 1.5px solid var(--gl);
  border-radius: var(--r);
  overflow: hidden;
}
.art-body th {
  font-family: var(--fh);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: left;
  padding: 12px 14px;
  background: var(--gb);
  border-bottom: 1.5px solid var(--gl);
}
.art-body td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--gl);
}
.art-body tr:last-child td { border-bottom: none; }
.art-body td:first-child { font-weight: 600; }

/* ── CALLOUT ── */
.art-body blockquote {
  background: #fff8f6;
  border-left: 3px solid var(--ac);
  border-radius: 0 var(--r) var(--r) 0;
  padding: 14px 18px;
  margin: 22px 0;
  font-size: 14.5px;
  line-height: 1.7;
}

/* ── FOOTER ── */
.footer { border-top: 1.5px solid var(--gl); padding: 24px 16px; text-align: center; }
.footer p { font-size: 12px; color: var(--gm); }


/* ── PREV / NEXT ── */
.pn-wrap {
  max-width: 740px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}
.prevnext {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
@media(max-width: 500px) { .prevnext { grid-template-columns: 1fr; } }
.pn-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1.5px solid var(--gl);
  border-radius: var(--r);
  padding: 14px 16px;
  text-decoration: none;
  color: var(--bk);
  transition: border-color .15s, background .15s;
  background: var(--wh);
}
.pn-card:hover { border-color: var(--ac); background: #fff8f6; }
.pn-next { text-align: right; }
.pn-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ac);
}
.pn-title {
  font-family: var(--fh);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--bk);
}
.pn-empty { display: block; }

/* ── BACK TO HUB ── */
.back-hub { margin-top: 4px; }
.back-hub a {
  font-size: 13px;
  color: var(--gm);
  text-decoration: none;
}
.back-hub a:hover { color: var(--ac); }