:root {
  --bg: #05070a;
  --bg-deep: #030507;
  --panel: #0b1016;
  --panel-2: #0e141c;
  --panel-3: #111923;
  --ink: #f4f7fb;
  --muted: #8e9aa8;
  --muted-2: #5f6b78;
  --line: rgba(255, 255, 255, .105);
  --line-strong: rgba(255, 255, 255, .2);
  --cyan: #41e4ff;
  --cyan-soft: rgba(65, 228, 255, .12);
  --danger: #ff6b7d;
  --sidebar: 286px;
  --sans: Inter, "Segoe UI Variable", "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 var(--sans); }
body::before { content: ""; position: fixed; z-index: -1; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(120deg, #000, transparent 80%); }
::selection { background: var(--cyan); color: var(--bg); }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
img { max-width: 100%; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; left: 1rem; top: 1rem; padding: .75rem 1rem; background: var(--cyan); color: var(--bg); font: 700 .75rem/1 var(--mono); text-transform: uppercase; transform: translateY(-180%); transition: transform .2s; }
.skip-link:focus { transform: none; }

.site-grid { min-height: 100vh; }
.sidebar { position: fixed; z-index: 60; inset: 0 auto 0 0; width: var(--sidebar); display: flex; flex-direction: column; border-right: 1px solid var(--line); background: rgba(5, 7, 10, .96); backdrop-filter: blur(18px); }
.sidebar-brand { min-height: 120px; padding: 28px 26px 22px; border-bottom: 1px solid var(--line); }
.wordmark { display: inline-flex; align-items: center; }
.wordmark-logo { display: block; width: 150px; height: auto; filter: invert(1); opacity: .96; }
.sidebar-brand p { margin: 13px 0 0; color: var(--muted); font: 600 .61rem/1 var(--mono); letter-spacing: .11em; text-transform: uppercase; }
.sidebar-menu { flex: 1; min-height: 0; overflow: auto; padding: 26px 18px; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.nav-label { margin: 0 8px 16px; color: var(--muted-2); font: 650 .62rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.sidebar-menu ul, .sidebar-menu li { margin: 0; padding: 0; list-style: none; }
.sidebar-menu ul.menu { display: grid; gap: 4px; }
.sidebar-menu ul.menu + ul.menu { margin-top: 4px; }
.sidebar-menu ul.menu ul.menu { position: relative; margin: 4px 0 7px 14px; padding-left: 12px; border-left: 1px solid var(--line); }
.sidebar-menu li.menuitem, .sidebar-menu li.menuactive { min-width: 0; }
.sidebar-menu a.menulink, .sidebar-menu a.menulinkactive { position: relative; min-height: 40px; display: flex; align-items: center; gap: .75rem; padding: .7rem .78rem; border: 1px solid transparent; color: #a5afba; font: 560 .75rem/1.25 var(--mono); overflow-wrap: anywhere; transition: color .18s, border-color .18s, background .18s, padding .18s; }
.sidebar-menu a.menulink::before, .sidebar-menu a.menulinkactive::before { content: ""; flex: 0 0 auto; width: 5px; height: 5px; border: 1px solid #56616e; border-radius: 50%; }
.sidebar-menu a.menulink:hover { padding-left: .95rem; border-color: var(--line); background: rgba(255,255,255,.025); color: var(--ink); }
.sidebar-menu li.menuactive > a, .sidebar-menu a.menulinkactive { border-color: rgba(65,228,255,.25); background: var(--cyan-soft); color: var(--cyan); }
.sidebar-menu li.menuactive > a::before, .sidebar-menu a.menulinkactive::before { border-color: var(--cyan); background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.sidebar-menu b { font-weight: inherit; }
.menu-home { margin-bottom: 4px !important; }
.sidebar-menu label { display: block; margin: 18px 8px 8px; color: var(--muted-2); font: 650 .61rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.sidebar-menu #filter { width: calc(100% - 16px); min-height: 39px; margin: 0 8px 12px; padding: .65rem .72rem; border: 1px solid var(--line); border-radius: 0; outline: 0; background: #070a0f; color: var(--ink); font: 560 .72rem/1 var(--mono); transition: border-color .18s, box-shadow .18s; }
.sidebar-menu #filter::placeholder { color: #586471; }
.sidebar-menu #filter:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-soft); }

.sidebar-meta { margin: 0 18px 18px; border: 1px solid var(--line); background: var(--panel); }
.monitor-state { display: flex; align-items: center; gap: .65rem; padding: .9rem; border-bottom: 1px solid var(--line); color: var(--cyan); font: 620 .64rem/1 var(--mono); text-transform: uppercase; }
.monitor-state i, .refresh-control i, .intro-status i { width: 6px; height: 6px; flex: 0 0 auto; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 13px var(--cyan); animation: pulse 2.2s infinite; }
.sidebar-meta-row { display: flex; align-items: center; justify-content: space-between; padding: .65rem .9rem; color: var(--muted); font: 600 .61rem/1 var(--mono); text-transform: uppercase; }
.sidebar-meta-row strong { color: #c9d1da; font-weight: 600; }
.upstream-brand { min-height: 58px; display: flex; align-items: center; gap: 14px; padding: 10px 20px; border-top: 1px solid var(--line); filter: grayscale(1); opacity: .38; overflow: hidden; }
.upstream-logo img { display: block; max-width: 80px; max-height: 30px; }

.page-shell { min-height: 100vh; margin-left: var(--sidebar); }
.topbar { position: sticky; z-index: 50; top: 0; height: 72px; display: flex; align-items: center; gap: 1.5rem; padding: 0 clamp(24px, 4vw, 64px); border-bottom: 1px solid var(--line); background: rgba(5, 7, 10, .82); backdrop-filter: blur(20px); }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 0; place-content: center; gap: 5px; border: 1px solid var(--line-strong); background: transparent; color: var(--ink); cursor: pointer; }
.menu-toggle > span:not(.sr-only) { width: 17px; height: 1px; display: block; background: currentColor; }
.topbar-context { min-width: 0; display: flex; align-items: center; gap: 14px; color: var(--muted); font: 620 .65rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.topbar-kicker { color: var(--ink); }
.topbar-divider { width: 42px; height: 1px; background: var(--line-strong); }
.topbar-actions { min-width: 0; margin-left: auto; display: flex; align-items: center; gap: 1rem; }
.topbar-actions > a { color: #a8b3be; font: 610 .66rem/1 var(--mono); text-transform: uppercase; transition: color .2s; }
.topbar-actions > a:hover { color: var(--cyan); }
.refresh-control { min-height: 35px; display: inline-flex; align-items: center; gap: .55rem; padding: 0 .78rem; border: 1px solid var(--line); background: var(--panel); color: #c5ced7; font: 600 .62rem/1 var(--mono); text-transform: uppercase; cursor: pointer; }
.refresh-control.is-paused { color: var(--muted); }
.refresh-control.is-paused i { background: var(--muted); box-shadow: none; animation: none; }
.auth-user { color: var(--muted); font: 600 .65rem/1 var(--mono); }
.auth-user:empty { display: none; }

.main { width: min(1220px, calc(100% - clamp(48px, 8vw, 128px))); margin: 0 auto; padding: clamp(74px, 8vw, 110px) 0 90px; }
.page-intro { position: relative; padding-bottom: clamp(50px, 7vw, 84px); }
.page-intro::after { content: "49870"; position: absolute; z-index: -1; right: -1vw; bottom: 0; color: rgba(255,255,255,.018); font: 800 clamp(7rem, 17vw, 15rem)/.7 var(--sans); letter-spacing: -.09em; pointer-events: none; }
.eyebrow { margin: 0 0 1.45rem; color: var(--muted); font: 650 .67rem/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.eyebrow span { color: var(--cyan); }
.intro-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 3rem; align-items: end; }
.page-intro h1 { max-width: 950px; margin: 0; font-size: clamp(2.9rem, 5.1vw, 5.8rem); line-height: .95; letter-spacing: -.06em; font-weight: 590; overflow-wrap: anywhere; text-wrap: balance; }
.page-remark { max-width: 780px; margin-top: 1.6rem; color: #9da8b4; font-size: 1.02rem; line-height: 1.7; }
.page-remark:empty { display: none; }
.page-remark h2, .page-remark p { margin: 0; color: inherit; font: inherit; }
.intro-status { min-width: 155px; padding: 1rem; border: 1px solid var(--line); background: rgba(11,16,22,.7); }
.intro-status > span { display: block; margin-bottom: .7rem; color: var(--muted-2); font: 650 .59rem/1 var(--mono); letter-spacing: .1em; }
.intro-status strong { display: flex; align-items: center; gap: .55rem; color: var(--cyan); font: 650 .68rem/1 var(--mono); }

.data-panel { width: 100%; max-width: 795px; margin: 22px auto 0; border: 1px solid var(--line); background: rgba(11,16,22,.86); box-shadow: 0 28px 80px rgba(0,0,0,.18); }
.data-panel > .panel-heading { min-height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0 20px; border-bottom: 1px solid var(--line); }
.data-panel > .panel-heading > div { display: flex; align-items: center; gap: 1rem; }
.data-panel > .panel-heading span { color: var(--cyan); font: 650 .62rem/1 var(--mono); }
.data-panel > .panel-heading strong { font-size: .84rem; font-weight: 590; }
.data-panel > .panel-heading small { color: var(--muted-2); font: 600 .61rem/1 var(--mono); text-transform: uppercase; }
.panel-content { min-height: 72px; padding: clamp(16px, 2.5vw, 30px); overflow: hidden; }

/* SmokePing-generated controls and target metadata */
.panel-content form { display: flex; flex-wrap: wrap; align-items: center; gap: .7rem; margin: 0 0 1rem; color: var(--muted); font: 600 .72rem/1.3 var(--mono); }
.panel-content input, .panel-content select { min-height: 38px; padding: .55rem .7rem; border: 1px solid var(--line-strong); border-radius: 0; background: #070a0f; color: var(--ink); }
.panel-content input[type="submit"], .panel-content input[type="button"], .panel-content button { border-color: var(--cyan); background: var(--cyan); color: var(--bg); font-weight: 700; cursor: pointer; }
.panel-content table { width: 100%; border-collapse: collapse; color: #c2cbd4; font-size: .81rem; }
.panel-content th, .panel-content td { padding: .78rem .9rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.panel-content th { background: rgba(255,255,255,.025); color: var(--muted); font: 650 .64rem/1.25 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.panel-content a { color: var(--cyan); }
.panel-content hr { height: 1px; margin: 1.5rem 0; border: 0; background: var(--line); }
.panel-content pre { max-width: 100%; overflow: auto; padding: 1rem; border: 1px solid var(--line); background: #06090d; color: #b8c2cc; font: .75rem/1.6 var(--mono); }

/* SmokePing emits graph cards as .panel/.panel-heading/.panel-body. Keep the
   chrome dark, but place its transparent graph PNG on a light instrument
   surface so the original black labels and data colours remain accurate. */
.panel-content > .panel { width: 100%; margin: 0; overflow: hidden; border: 1px solid var(--line); background: #080c11; }
.panel-content > .panel + .panel { margin-top: 18px; }
.panel-content .panel > .panel-heading { min-height: 54px; display: flex; align-items: center; padding: 12px 18px; border-bottom: 1px solid var(--line); background: linear-gradient(90deg, rgba(65,228,255,.055), transparent 42%); }
.panel-content .panel > .panel-heading h2 { margin: 0; color: var(--ink); font: 590 clamp(.9rem, 1.35vw, 1.08rem)/1.35 var(--sans); letter-spacing: -.01em; }
.panel-content .panel > .panel-heading h2::before { content: "TARGET"; display: inline-block; margin-right: .8rem; color: var(--cyan); font: 650 .55rem/1 var(--mono); letter-spacing: .1em; vertical-align: .18em; }
.panel-content .panel > .panel-body { max-width: 100%; padding: 18px; overflow-x: auto; background: #f4f7f9; box-shadow: inset 0 0 0 1px rgba(5,7,10,.07); scrollbar-color: #82909d #dfe5e9; }
.panel-content .panel > .panel-body a { display: block; width: fit-content; max-width: 100%; margin: 0 auto; }
.panel-content .panel > .panel-body img { display: block; width: auto; max-width: 100%; height: auto; margin: 0 auto; filter: none; }

/* Existing SmokePing graph markup across classic and current releases */
.graph-box, .graph, .detail, .graphs { max-width: 100%; }
.panel-content .graph-box { margin: 0 0 18px; padding: 14px; border: 1px solid var(--line); background: #080c11; }
.panel-content .graph-box:last-child { margin-bottom: 0; }
.panel-content .graph-box > a, .panel-content .graph-box > div { max-width: 100%; }
.panel-content img { height: auto; border: 0; }
.panel-content a > img, .panel-content .graph-box img { display: block; max-width: 100%; margin: 0 auto; }
.panel-content map, .panel-content area { outline: 0; }
.panel-content .zoom { max-width: 100%; overflow-x: auto; }
.panel-content .error, .panel-content .warning { padding: 1rem; border: 1px solid rgba(255,107,125,.35); background: rgba(255,107,125,.08); color: #ff9baa; }

/* Overview pages commonly output adjacent graph boxes. */
.overview .panel-content { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 18px; }
.overview .panel-content:empty { display: none; }
.overview .panel-content > .graph-box { flex: 1 1 420px; margin: 0; }
.overview .panel-content > .panel { flex: 1 0 100%; }
.overview .panel-content > table, .overview .panel-content > form, .overview .panel-content > p, .overview .panel-content > div:not(.graph-box) { flex: 1 0 100%; }

.footer { min-height: 136px; display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 2rem; padding: 28px clamp(24px, 4vw, 64px); border-top: 1px solid var(--line); background: var(--bg-deep); }
.footer > div:first-child { display: flex; flex-direction: column; gap: .55rem; }
.footer-wordmark { display: inline-flex; width: fit-content; }
.footer-wordmark img { display: block; width: 122px; height: auto; filter: invert(1); opacity: .9; }
.footer > div:first-child span, .footer-runtime { color: var(--muted-2); font: 600 .59rem/1.5 var(--mono); text-transform: uppercase; }
.footer-runtime { display: flex; flex-direction: column; gap: .25rem; }
.footer-runtime a { color: #aeb8c2; }
.back-top { color: #aeb8c2; font: 620 .63rem/1 var(--mono); text-transform: uppercase; }
.back-top:hover, .footer a:hover { color: var(--cyan); }
.sidebar-scrim { display: none; }

@keyframes pulse { 50% { opacity: .34; } }

@media (max-width: 1120px) {
  :root { --sidebar: 252px; }
  .topbar-context > span:last-child, .topbar-divider { display: none; }
  .main { width: calc(100% - 64px); }
}

@media (max-width: 900px) {
  .sidebar { width: min(86vw, 312px); transform: translateX(-102%); transition: transform .24s ease; box-shadow: 28px 0 80px rgba(0,0,0,.5); }
  .nav-open .sidebar { transform: none; }
  .sidebar-scrim { position: fixed; z-index: 55; inset: 0; width: 100%; height: 100%; border: 0; background: rgba(0,0,0,.62); cursor: pointer; }
  .nav-open .sidebar-scrim { display: block; }
  .page-shell { margin-left: 0; }
  .menu-toggle { display: grid; }
  .topbar { padding-inline: 22px; }
  .topbar-actions > a, .auth-user { display: none; }
  .main { width: calc(100% - 44px); }
  .intro-row { grid-template-columns: 1fr; gap: 2rem; }
  .intro-status { width: fit-content; }
  .footer { grid-template-columns: 1fr auto; }
  .footer-runtime { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 600px) {
  .topbar { height: 66px; gap: .8rem; padding-inline: 15px; }
  .topbar-context { font-size: .58rem; }
  .refresh-control { margin-left: auto; padding-inline: .6rem; }
  .main { width: calc(100% - 28px); padding: 58px 0 70px; }
  .page-intro h1 { font-size: clamp(2.75rem, 14vw, 4.3rem); }
  .data-panel > .panel-heading { min-height: 56px; padding-inline: 14px; }
  .data-panel > .panel-heading small { display: none; }
  .panel-content { padding: 11px; overflow-x: auto; }
  .panel-content table { min-width: 520px; }
  .panel-content .graph-box { padding: 7px; }
  .panel-content .panel > .panel-heading { padding: 11px 13px; }
  .panel-content .panel > .panel-heading h2::before { display: block; margin: 0 0 .45rem; }
  .panel-content .panel > .panel-body { padding: 10px; }
  .panel-content .panel > .panel-body a { max-width: none; }
  .panel-content .panel > .panel-body img { width: 697px; max-width: none; }
  .page-intro h1 { font-size: clamp(2.55rem, 11vw, 3.8rem); }
  .footer { grid-template-columns: 1fr; gap: 1rem; padding: 28px 18px; }
  .footer-runtime { grid-column: auto; grid-row: auto; }
  .back-top { margin-top: .5rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media print {
  .sidebar, .topbar, .sidebar-scrim, .footer, .skip-link { display: none !important; }
  .page-shell { margin: 0; }
  .main { width: 100%; padding: 0; }
  body { background: #fff; color: #000; }
  .data-panel { border: 1px solid #bbb; background: #fff; box-shadow: none; break-inside: avoid; }
}