:root {
  --bg: #0b1020;
  --bg-elev: #121a2e;
  --bg-soft: #171f35;
  --ink: #eef2fb;
  --ink-soft: #9aa8c7;
  --line: #2a3553;
  --accent: #5ee0c7;
  --accent-dim: rgba(94, 224, 199, 0.12);
  --warn: #f0b45a;
  --code: #070b14;
  --code-ink: #d7e0f2;
  --max: 76rem;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(900px 420px at 8% -10%, rgba(94, 224, 199, 0.09), transparent 50%),
    radial-gradient(800px 380px at 100% 0%, rgba(98, 130, 255, 0.1), transparent 46%),
    var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  font-size: 1.02rem;
  line-height: 1.65;
}

a { color: var(--accent); }

a:hover { color: #8aedd9; }

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 16, 32, 0.88);
  backdrop-filter: blur(12px);
}

.top-inner,
.foot-inner,
.wrap {
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--ink);
  font-weight: 650;
  letter-spacing: -0.03em;
  text-decoration: none;
  font-size: 1.15rem;
}

.mark::before {
  content: "";
  width: 2rem;
  height: 2rem;
  flex: none;
  background: center / contain no-repeat url("../images/ruvio-mark.png");
}

.mark span {
  color: var(--accent);
}

.top nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem 0.95rem;
  font-size: 0.9rem;
}

.top nav a {
  color: var(--ink-soft);
  text-decoration: none;
}

.top nav a[aria-current="page"],
.top nav a[aria-current="location"] {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.top nav details {
  position: relative;
}

.top nav details:hover > summary,
.top nav details:has(> summary:focus-visible) > summary {
  color: var(--ink);
}

.top nav summary {
  color: var(--ink-soft);
  cursor: pointer;
  list-style: none;
  white-space: nowrap;
}

.top nav summary::-webkit-details-marker { display: none; }
.top nav summary::marker { content: ""; }

.top nav summary::after {
  content: "v";
  margin-left: 0.28rem;
  color: var(--accent);
  font-size: 0.78em;
}

.top nav .nav-menu {
  display: none;
}

.top nav details[open] > .nav-menu,
.top nav details:hover > .nav-menu,
.top nav details:has(> summary:focus-visible) > .nav-menu {
  position: absolute;
  z-index: 20;
  top: 100%;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-width: 12rem;
  gap: 0.25rem;
  padding: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: var(--bg-elev);
  box-shadow: 0 0.8rem 2rem rgba(0, 0, 0, 0.35);
}

.top nav .nav-menu a {
  padding: 0.35rem 0.5rem;
  border-radius: 0.35rem;
}

.top nav .nav-menu a:hover,
.top nav .nav-menu a[aria-current="page"] {
  background: var(--bg-soft);
}

.wrap {
  padding: 2.4rem 1.25rem 4.5rem;
}

h1, h2, h3 {
  letter-spacing: -0.03em;
  line-height: 1.2;
  font-weight: 650;
}

.hero h1,
article h1 {
  margin: 0.35rem 0 0.9rem;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
}

.kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lede {
  max-width: 46rem;
  color: var(--ink-soft);
  font-size: 1.12rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.5rem 0 2.2rem;
}

.button, .button.quiet {
  display: inline-block;
  padding: 0.58rem 0.95rem;
  border-radius: 0.55rem;
  text-decoration: none;
  font-weight: 600;
}

.button {
  background: var(--accent);
  color: #06201a;
}

.button:hover { color: #06201a; }

.button.quiet {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 0.9rem;
}

.card,
.stat,
.compare-card {
  padding: 1.05rem 1.1rem 1.15rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
}

.card h2,
.compare-card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.15rem;
}

.card p,
.compare-card p { margin: 0; color: var(--ink-soft); }

.card {
  display: flex;
  flex-direction: column;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.6rem;
  margin-top: auto;
  padding-top: 0.9rem;
}

.tags span {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0 0.5rem;
}

.stat .n {
  display: block;
  margin-top: 0.2rem;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.stat .label,
.note {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.stat a { text-decoration: none; }

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin: 0.4rem 0 0;
}

.layout {
  display: grid;
  grid-template-columns: 13.5rem minmax(0, 1fr);
  gap: 2.2rem;
}

.evidence-layout { max-width: 61rem; }
.evidence-layout article { min-width: 0; }

.evidence-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.4rem 0 1.7rem;
}

.evidence-tabs a {
  display: inline-block;
  padding: 0.38rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  color: var(--ink-soft);
  text-decoration: none;
}

.evidence-tabs a:hover,
.evidence-tabs a:focus-visible,
.evidence-tabs a[aria-current="page"] {
  color: var(--ink);
  border-color: var(--accent);
  background: var(--bg-elev);
}

.side {
  position: sticky;
  top: 4.4rem;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.92rem;
}

.side a { text-decoration: none; color: var(--ink-soft); }

article h2 { margin-top: 2.2rem; font-size: 1.45rem; }

article h3 { margin-top: 1.45rem; font-size: 1.12rem; }

pre {
  overflow-x: auto;
  padding: 1rem 1.1rem;
  background: var(--code);
  color: var(--code-ink);
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.84rem;
  line-height: 1.5;
}

code {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.9em;
}

p code, li code, td code {
  padding: 0.05rem 0.28rem;
  background: var(--bg-soft);
  border-radius: 0.28rem;
}

.table-wrap {
  overflow-x: auto;
  margin: 1rem 0 1.6rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}

table.detail {
  min-width: 54rem;
}

table.detail td:last-child {
  color: var(--ink-soft);
  font-size: 0.88rem;
}

th, td {
  padding: 0.55rem 0.6rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--ink-soft);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.callout {
  margin: 1.2rem 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-dim);
}

.callout.warn {
  border-left-color: var(--warn);
  background: rgba(240, 180, 90, 0.08);
}

figure.shot {
  margin: 1.2rem 0 1.6rem;
}

figure.shot img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
}

figure.shot figcaption {
  margin-top: 0.45rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.foot {
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.foot-inner { padding: 1.1rem 1.25rem 2rem; }

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 1rem;
  margin: 1.4rem 0;
}

.good { color: #8aedd9; }
.limit { color: var(--warn); }

.hero-band {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(16rem, 0.8fr);
  gap: 1.4rem;
  align-items: end;
  margin-bottom: 1.6rem;
}

.meter {
  padding: 1rem 1.05rem 1.1rem;
  background: linear-gradient(180deg, rgba(94, 224, 199, 0.14), var(--bg-elev) 42%);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.meter ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.meter li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}

.meter li:last-child { border-bottom: 0; }

.meter strong {
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

.meter .label {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.icon {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.7rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.6rem;
  background: var(--accent-dim);
  color: var(--accent);
}

.icon svg { width: 1.15rem; height: 1.15rem; }

.stack {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
  margin: 1.2rem 0 2rem;
}

.pile, .one {
  display: grid;
  gap: 0.45rem;
}

.pile span, .one strong {
  display: block;
  padding: 0.55rem 0.75rem;
  border-radius: 0.65rem;
  border: 1px solid var(--line);
}

.pile span {
  color: var(--ink-soft);
  background: transparent;
}

.one strong {
  background: var(--accent);
  color: #06201a;
  font-size: 1.15rem;
}

.one span {
  color: var(--ink-soft);
  background: var(--bg-elev);
}

.arrow {
  color: var(--accent);
  font-size: 1.4rem;
  text-align: center;
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: static; flex-direction: row; flex-wrap: wrap; }
  .top { position: static; }
  .hero-band, .stack { grid-template-columns: 1fr; }
  .arrow { transform: rotate(90deg); }
}

/* Home */
.home > section { margin-bottom: 3rem; }

.home .hero-band {
  align-items: stretch;
  padding: 1rem 0 0.5rem;
  min-height: min(34rem, 78vh);
  align-content: center;
}

.home .hero h1 {
  max-width: 18ch;
  font-size: clamp(2rem, 5.4vw, 3.6rem);
}

.home .hero .lede {
  color: var(--ink);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
}

.home .meter { align-self: end; }

.home h2 { font-size: 1.5rem; margin: 0 0 0.6rem; }

.jobs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.jobs a {
  display: inline-flex;
  flex-direction: column;
  gap: 0.05rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  background: var(--bg-elev);
  color: var(--ink);
  text-decoration: none;
  line-height: 1.25;
}

.jobs a:hover { border-color: var(--accent); color: var(--ink); }

.jobs code { padding: 0; background: none; color: var(--accent); font-size: 0.86rem; }

.jobs span { color: var(--ink-soft); font-size: 0.78rem; }

.card h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }

.home .note { margin: 0 0 1rem; font-size: 0.95rem; }

.home .grid { grid-template-columns: repeat(auto-fill, minmax(15.5rem, 1fr)); }

.pages {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pages a {
  display: block;
  height: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  text-decoration: none;
}

.pages a:hover { border-color: var(--accent); }

.pages strong { display: block; color: var(--ink); }

.pages span { color: var(--ink-soft); font-size: 0.9rem; }

dl.jobs-detail { margin: 1rem 0 1.6rem; }

dl.jobs-detail dt {
  margin-top: 1rem;
  font-weight: 600;
  scroll-margin-top: 4.5rem;
}

dl.jobs-detail dd { margin: 0.25rem 0 0; color: var(--ink-soft); }

article h4 { margin-top: 1.3rem; font-size: 1rem; }

article h2[id], article h3[id] { scroll-margin-top: 4.5rem; }

@media (max-width: 860px) {
  .home .hero-band { min-height: 0; }
}

@media (max-width: 600px) {
  body { font-size: 1rem; }
  .top { padding: 0.6rem 1rem; }
  .top-inner { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
  .top nav {
    flex-wrap: wrap;
    justify-content: flex-start;
    width: 100%;
    overflow: visible;
    padding-bottom: 0.3rem;
  }
  .top nav a { white-space: nowrap; }
  .top nav details[open] > .nav-menu,
  .top nav details:hover > .nav-menu,
  .top nav details:has(> summary:focus-visible) > .nav-menu {
    left: 0;
    right: auto;
  }
  .wrap { padding: 1.4rem 1rem 3rem; }
  .home .grid, .pages { grid-template-columns: 1fr; }
  .actions .button { flex: 1 1 auto; text-align: center; }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .layout > article { min-width: 0; }
}

@media (max-width: 860px) {
  article > table { display: block; overflow-x: auto; }
}