:root {
  --bg: #f8fafc;
  --bg-elevated: rgba(255,255,255,0.9);
  --fg: #151827;
  --muted: #687386;
  --border: rgba(7,42,102,0.14);
  --code-bg: #f1f5f9;
  --code-fg: #151827;
  --accent: #072a66;
  --accent-2: #10b981;
  --accent-3: #6ee7b7;
  --accent-soft: rgba(16,185,129,0.10);
  --shadow: 0 16px 40px rgba(7,42,102,0.08);
  --glow: 0 14px 38px rgba(16,185,129,0.20);
  --footer-bg: #072a66;
  --footer-bar: #59cf91;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0c10;
    --bg-elevated: rgba(20,22,28,0.85);
    --fg: #e8e9ec;
    --muted: #9aa0ab;
    --border: rgba(52,211,153,0.18);
    --code-bg: #16181f;
    --code-fg: #dfe3ea;
    --accent: #5b8def;
    --accent-2: #34d399;
    --accent-3: #6ee7b7;
    --accent-soft: rgba(52,211,153,0.16);
    --shadow: 0 16px 40px rgba(0,0,0,0.35);
    --glow: 0 14px 38px rgba(52,211,153,0.25);
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 0%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 40%),
    radial-gradient(circle at 100% 0%, color-mix(in srgb, var(--accent-2) 15%, transparent), transparent 35%),
    var(--bg);
  background-attachment: fixed, fixed, fixed;
  color: var(--fg);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.brand:hover { text-decoration: none; }

.brand-mark {
  width: 11px;
  height: 11px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2) 60%, var(--accent-3));
  flex-shrink: 0;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 2px;
  margin: 0;
  padding: 0;
}

.site-nav > ul > li { position: relative; }

.site-nav summary {
  cursor: pointer;
  list-style: none;
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.site-nav summary::-webkit-details-marker { display: none; }
.site-nav summary::after {
  content: "";
  display: inline-block;
  margin-left: 6px;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(45deg) translateY(-2px);
}
.site-nav summary:hover { background: var(--accent-soft); color: var(--accent); }
.site-nav details[open] summary { background: var(--accent-soft); color: var(--accent); }

.dropdown {
  list-style: none;
  margin: 6px 0 0;
  padding: 6px;
  position: absolute;
  z-index: 10;
  min-width: 180px;
  background: var(--bg-elevated);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  animation: dropdown-in 0.14s ease;
}

@keyframes dropdown-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown li a {
  display: block;
  padding: 7px 10px;
  border-radius: 7px;
  color: var(--fg);
  font-size: 0.9rem;
  font-weight: 450;
}
.dropdown li a:hover {
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 640px) {
  .site-nav ul { flex-direction: column; width: 100%; }
  .dropdown { position: static; box-shadow: none; margin-top: 4px; animation: none; }
}

/* Main content */
main.wrap { padding-top: 40px; padding-bottom: 72px; min-height: 50vh; }

.hero {
  margin: 0 0 32px;
  padding: 4px 36px 36px;
  border-radius: 24px;
  background: var(--footer-bg);
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: "";
  display: block;
  margin: 0 -36px 32px;
  height: 6px;
  background: var(--footer-bar);
}
.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  right: -180px;
  top: -220px;
  background: rgba(89,207,145,0.10);
}
.hero h1 { margin: 0 0 8px; font-size: 2.2rem; color: #fff; position: relative; z-index: 1; }
.hero p { margin: 0; color: rgba(255,255,255,0.75); font-size: 1.05rem; max-width: 52ch; position: relative; z-index: 1; }

h1 { font-size: 1.85rem; font-weight: 700; letter-spacing: -0.015em; margin: 0 0 8px; line-height: 1.25; }
h2 { font-size: 1.15rem; font-weight: 600; letter-spacing: -0.01em; margin: 0; }

.post-list { display: flex; flex-direction: column; gap: 16px; }

.post-summary {
  position: relative;
  overflow: hidden;
  background: var(--bg-elevated);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.post-summary::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
}
.post-summary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow);
}
.post-summary h2 a { color: var(--fg); }
.post-summary h2 a:hover { color: var(--accent); text-decoration: none; }

.meta { color: var(--muted); font-size: 0.85rem; margin: 10px 0 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.meta time { font-variant-numeric: tabular-nums; }
.meta a.cat-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #fff;
  background: var(--cat, var(--accent));
}
.meta a.cat-tag:hover { text-decoration: none; filter: brightness(1.08); }

/* Per-category solid colors */
.cat-avaya-switch  { --cat: #d97706; }
.cat-cisco-switch  { --cat: #0891b2; }
.cat-fortigate     { --cat: #dc2626; }
.cat-mikrotik      { --cat: #0d9488; }
.cat-ubiquiti      { --cat: #0ea5e9; }
.cat-antimalware   { --cat: #e11d48; }
.cat-centos        { --cat: #8b5cf6; }
.cat-office-365    { --cat: #f97316; }
.cat-other         { --cat: #64748b; }
.cat-powershell    { --cat: #2563eb; }
.cat-vmware        { --cat: #16a34a; }
.cat-windows       { --cat: #6366f1; }

.excerpt { margin: 12px 0 0; color: var(--fg); font-size: 0.96rem; }

.post-content, .page-content { margin-top: 24px; }
.post-content p, .page-content p { margin: 0 0 16px; }
.post-content ul, .page-content ul { margin: 0 0 16px 20px; padding: 0; }
.post-content li, .page-content li { margin-bottom: 4px; }
.post-content a, .page-content a { word-break: break-word; font-weight: 500; }
.post-content strong { font-weight: 600; }

code {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.86em;
}

pre {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 16px 18px;
  border-radius: 0 12px 12px 0;
  border-left: 4px solid var(--accent);
  overflow-x: auto;
  margin: 0 0 16px;
}
pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 0.88em;
  line-height: 1.6;
}

/* Rouge/kramdown wraps highlighted fences in extra divs — neutralize
   the wrapper so only the inner <pre> shows the card chrome above. */
div.highlighter-rouge, figure.highlight, .highlight {
  background: none;
  margin: 0;
}

/* Syntax highlighting (Rouge/Pygments short class names) */
.highlight .c, .highlight .c1, .highlight .cm, .highlight .cp { color: var(--muted); font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt, .highlight .ow { color: #7c3aed; font-weight: 600; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sc, .highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sx, .highlight .ss { color: #059669; }
.highlight .m, .highlight .mf, .highlight .mh, .highlight .mi, .highlight .mo, .highlight .il { color: #d97706; }
.highlight .nf, .highlight .nc, .highlight .ne { color: #2563eb; }
.highlight .nv, .highlight .vc, .highlight .vg, .highlight .vi, .highlight .nb, .highlight .bp { color: #0891b2; }
.highlight .na, .highlight .nt { color: #dc2626; }
.highlight .err { color: #dc2626; text-decoration: underline wavy; }
.highlight .o, .highlight .p { color: var(--code-fg); }

@media (prefers-color-scheme: dark) {
  .highlight .k, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt, .highlight .ow { color: #c4b5fd; }
  .highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sc, .highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sx, .highlight .ss { color: #34d399; }
  .highlight .m, .highlight .mf, .highlight .mh, .highlight .mi, .highlight .mo, .highlight .il { color: #fbbf24; }
  .highlight .nf, .highlight .nc, .highlight .ne { color: #93c5fd; }
  .highlight .nv, .highlight .vc, .highlight .vg, .highlight .vi, .highlight .nb, .highlight .bp { color: #67e8f9; }
  .highlight .na, .highlight .nt { color: #f87171; }
  .highlight .err { color: #f87171; }
}

.back { margin-top: 40px; }
.back a { font-weight: 500; }

.category-index h1 { margin-bottom: 24px; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
  margin-top: 24px;
}
.gallery-grid img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: transform 0.15s ease;
}
.gallery-grid img:hover { transform: scale(1.02); }

/* Flickr album grid (gallery page) */
.flickr-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin: 20px 0 40px;
}
.flickr-set {
  position: relative;
  display: block;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.flickr-set:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.flickr-set img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}
.flickr-set span {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(to top, rgba(7,42,102,0.85), rgba(7,42,102,0));
}

/* Google Map embed (kitesurfing page) */
.map-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin: 20px 0 28px;
}
.map-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* Simple pill link list (kitesurfing page) */
.link-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0 0 32px;
}
.link-list a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: background 0.15s ease, transform 0.15s ease;
}
.link-list a:hover { background: var(--accent); color: #fff; transform: translateY(-1px); }

/* Footer */
.site-footer {
  margin-top: 80px;
  background: var(--footer-bg);
  color: rgba(255,255,255,0.85);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  display: block;
  height: 8px;
  background: var(--footer-bar);
}
.site-footer::after {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  right: -200px;
  top: -250px;
  background: rgba(89,207,145,0.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding: 48px 24px;
  position: relative;
  z-index: 1;
}
.footer-grid h3 { color: #fff; margin: 0 0 14px; font-size: 1rem; }
.footer-grid p { margin: 0; color: rgba(255,255,255,0.7); font-size: 0.92rem; max-width: 34ch; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.footer-grid a { color: var(--footer-bar); font-size: 0.92rem; }
.footer-grid a:hover { color: #fff; }
.copyright {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding: 18px 24px;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}