/* Optify — operations dashboard theme. Dark console, status LEDs, monospace readouts,
   status bar under the header, monitor tiles and a manifest panel. */
:root {
  --bg: #0a111e;
  --panel: #121c2e;
  --panel-2: #16233a;
  --line: #223049;
  --line-2: #2c3d5a;
  --ink: #e6eefb;
  --muted: #8ba0bd;
  --dim: #6b80a0;
  --green: #35d07f;
  --amber: #f2b53c;
  --blue: #3d9bf0;
  --violet: #9a7bf0;
  --red: #ef5d6b;
  --mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--sans); color: var(--ink);
  background: radial-gradient(1100px 460px at 82% -140px, #14263f 0%, var(--bg) 62%);
  line-height: 1.65; font-size: 16px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--green); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { background: #0c1526; border-bottom: 1px solid var(--line-2); }
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 13px 0; }
.brand { display: flex; align-items: center; gap: 11px; color: #fff; }
.brand:hover { color: #fff; }
.brand-mark { color: var(--green); display: inline-flex; }
.brand-text { font-weight: 700; font-size: 22px; display: flex; flex-direction: column; line-height: 1; letter-spacing: -0.01em; }
.brand-sub { font-family: var(--mono); font-size: 11px; font-weight: 400; color: var(--dim); margin-top: 5px; }
.site-nav { display: flex; flex-wrap: wrap; gap: 2px; }
.nav-link { font-family: var(--mono); font-size: 12px; color: #a6bcd8; padding: 6px 10px; border: 1px solid transparent; }
.nav-link:hover { color: #fff; border-color: var(--line-2); }
.nav-link.is-active { color: #06121f; background: var(--green); border-color: var(--green); }

/* Status bar */
.statusbar { background: #0e1a2c; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 11.5px; }
.statusbar-inner { display: flex; flex-wrap: wrap; gap: 22px; padding: 7px 20px; }
.led { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); letter-spacing: 0.02em; }
.led i { width: 7px; height: 7px; border-radius: 50%; display: inline-block; }
.led.ok i { background: var(--green); box-shadow: 0 0 8px var(--green); }
.led.info i { background: var(--blue); box-shadow: 0 0 8px var(--blue); }
.led.warn i { background: var(--amber); box-shadow: 0 0 8px var(--amber); }

/* Hero */
.hero { padding: 52px 0 24px; }
.hero-kicker { font-family: var(--mono); font-size: 13px; color: var(--green); margin: 0 0 12px; }
.hero-title { font-size: 44px; line-height: 1.05; margin: 0 0 14px; color: #fff; letter-spacing: -0.025em; max-width: 20ch; }
.hero-lede { font-size: 18px; color: #c1d2e8; max-width: 62ch; margin: 0 0 16px; }
.hero-note { font-family: var(--mono); font-size: 13px; color: #bcd3ea; background: var(--panel); border: 1px solid var(--line-2); border-left: 4px solid var(--green); padding: 10px 14px; max-width: 62ch; margin: 0; }

/* Panels + monitors */
.panels { padding-bottom: 44px; }
.panel { margin: 32px 0; }
.panel-head { display: flex; gap: 12px; align-items: flex-start; border-bottom: 1px solid var(--line-2); padding-bottom: 12px; margin-bottom: 16px; }
.panel-dot { width: 11px; height: 11px; border-radius: 50%; margin-top: 8px; flex: none; }
.dot-core { background: var(--blue); box-shadow: 0 0 8px var(--blue); }
.dot-deploy { background: var(--green); box-shadow: 0 0 8px var(--green); }
.dot-config { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.dot-observe { background: var(--violet); box-shadow: 0 0 8px var(--violet); }
.dot-reliability { background: var(--red); box-shadow: 0 0 8px var(--red); }
.panel-name { margin: 0 0 3px; font-size: 22px; letter-spacing: -0.01em; }
.panel-name a { color: #fff; }
.panel-name a:hover { color: var(--green); }
.panel-blurb { margin: 0; font-size: 14px; color: var(--muted); max-width: 68ch; }
.monitors { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.monitors-wide { padding-bottom: 52px; }
.monitor { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: border-color .15s, transform .15s; }
.monitor:hover { border-color: var(--green); transform: translateY(-2px); }
.monitor-top { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px 0; }
.led-dot { width: 8px; height: 8px; border-radius: 50%; }
.led-dot.is-green { background: var(--green); box-shadow: 0 0 7px var(--green); }
.led-dot.is-amber { background: var(--amber); box-shadow: 0 0 7px var(--amber); }
.monitor-num { font-family: var(--mono); font-size: 11px; color: var(--dim); }
.monitor-link { display: block; padding: 6px 14px 16px; }
.monitor-title { margin: 6px 0 7px; font-size: 18px; color: #fff; line-height: 1.22; }
.monitor-link:hover .monitor-title { color: var(--green); }
.monitor-desc { margin: 0 0 12px; font-size: 13.5px; color: var(--muted); }
.monitor-foot { display: flex; align-items: center; gap: 8px; }
.monitor-area { font-family: var(--mono); font-size: 11px; color: var(--dim); }

/* Level tags */
.ltag { font-family: var(--mono); font-size: 11px; padding: 3px 8px; border: 1px solid var(--line-2); border-radius: 4px; }
.lt-beginner { color: var(--green); border-color: #22503b; background: #10261d; }
.lt-intermediate { color: var(--amber); border-color: #4d3f1c; background: #241f10; }

/* Crumb + heads */
.crumb { font-family: var(--mono); font-size: 12px; color: var(--dim); padding-top: 24px; }
.crumb a { color: var(--muted); } .crumb a:hover { color: var(--green); }
.crumb .sep { margin: 0 7px; color: var(--line-2); }
.cat-head { padding: 18px 0 18px; }
.cat-title { font-size: 34px; color: #fff; margin: 6px 0 10px; letter-spacing: -0.02em; }
.cat-blurb { font-size: 17px; color: #c1d2e8; max-width: 62ch; margin: 0; }

/* Concept page */
.concept { max-width: 800px; margin: 0 auto; padding-bottom: 56px; }
.concept-head { padding: 18px 0 8px; }
.concept-title { font-size: 36px; line-height: 1.13; color: #fff; margin: 4px 0 6px; letter-spacing: -0.02em; }
.concept-zh { font-family: var(--mono); font-size: 14px; color: var(--dim); margin: 0; }

/* Manifest panel */
.manifest { background: #0c1626; border: 1px solid var(--line-2); border-top: 4px solid var(--green); border-radius: 8px; padding: 16px 20px; margin: 22px 0 10px; }
.manifest-label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; color: var(--green); margin: 0 0 12px; }
.manifest-body { display: grid; gap: 6px; }
.mani-row { display: grid; grid-template-columns: 78px 1fr; gap: 12px; font-family: var(--mono); font-size: 13.5px; }
.mani-key { color: var(--violet); }
.mani-val { color: #dbe8f7; }

/* Sections */
.sec { margin: 30px 0; }
.sec-heading { font-size: 21px; color: #fff; margin: 0 0 12px; border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.sec-num { font-family: var(--mono); font-size: 13px; color: var(--green); }
.sec-body { color: #d3e0f0; }
.sec-body p { margin: 0 0 14px; }
.sec-body p:last-child { margin-bottom: 0; }

/* Related */
.related { margin: 36px 0 40px; }
.related-title { font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin: 0 0 12px; }
.rel-tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.rel-tile { display: flex; flex-direction: column; gap: 5px; background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: 8px; padding: 13px 15px; }
.rel-tile:hover { border-left-color: var(--green); }
.rel-title { font-weight: 600; color: #fff; font-size: 15px; }
.rel-meta { font-family: var(--mono); font-size: 11px; color: var(--dim); }
.rel-tile.is-drip { border-left-color: var(--line-2); opacity: 0.6; }

/* Legal */
.legal { max-width: 770px; margin: 0 auto; padding: 40px 0 56px; }
.legal-title { font-size: 32px; color: #fff; margin: 0 0 18px; }
.legal-body { color: #d3e0f0; }
.legal-body h2 { font-size: 20px; color: #fff; margin: 24px 0 8px; }
.legal-body p { margin: 0 0 14px; }
.legal-body a { word-break: break-all; }

/* 404 */
.nf { padding: 66px 0 80px; }
.nf-title { font-family: var(--mono); font-size: 30px; color: var(--red); margin: 0 0 12px; }
.nf-body { color: var(--muted); margin: 0 0 22px; max-width: 52ch; }
.nf-link { display: inline-block; font-family: var(--mono); font-size: 14px; padding: 11px 20px; background: var(--green); color: #06121f; border-radius: 6px; font-weight: 600; }
.nf-link:hover { color: #06121f; background: #4fe090; }

/* Footer */
.site-footer { background: #0c1526; color: #a6bcd8; margin-top: 24px; border-top: 1px solid var(--line-2); }
.site-footer .wrap { padding-top: 24px; padding-bottom: 24px; }
.foot-brand { font-weight: 700; color: #fff; margin: 0 0 8px; }
.foot-links { margin: 0 0 10px; font-size: 14px; font-family: var(--mono); }
.foot-links a { color: #8fb0d6; } .foot-links a:hover { color: #fff; }
.foot-note { margin: 0; font-size: 13px; color: var(--dim); max-width: 70ch; }

@media (max-width: 640px) {
  .hero-title { font-size: 32px; }
  .concept-title, .cat-title { font-size: 27px; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .mani-row { grid-template-columns: 1fr; gap: 1px; }
}