/* arrstack-installer landing page
 * Dark-first. Terminal aesthetic. No frameworks.
 * Palette: canonical per docs/_internal/brand/visual.md (Round 1).
 * Author: LavX, MIT.
 */

/* ---------- tokens (canonical brand palette) ---------- */
:root {
  color-scheme: dark light;

  /* canonical dark theme (primary) */
  --bg-base: #0D1117;
  --bg-elevated: #161B22;
  --bg-deep: #010409;
  --fg-default: #E6EDF3;
  --fg-muted: #8B949E;
  --fg-dim: #6E7681;
  --accent-brand: #3FB950;   /* phosphor green, primary CTA, logo */
  --accent-title: #56D4DC;   /* cyan, section titles */
  --warn: #D29922;
  --danger: #F85149;
  --info: #58A6FF;
  --purple: #D2A8FF;

  /* surface aliases (composed from canonical) */
  --bg: var(--bg-base);
  --bg-1: var(--bg-elevated);
  --bg-2: #1C2129;
  --line: #30363D;
  --line-2: #3D444D;

  /* text aliases */
  --fg: var(--fg-default);
  --fg-mut: var(--fg-muted);

  /* semantic */
  --accent: var(--accent-brand);
  --accent-ink: #03150A;
  --link: var(--info);
  --focus: var(--accent-brand);

  /* type: Geist Sans with system fallback; JetBrains Mono for mono */
  --sans: "Geist Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* scale */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-8: 48px;
  --s-10: 64px;
  --s-12: 96px;

  /* layout */
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
  --container: 1120px;

  /* borders */
  --border: 1px solid var(--line);
  --border-2: 1px solid var(--line-2);

  /* shadows */
  --shadow-1: 0 1px 0 rgba(255,255,255,0.02), 0 8px 24px rgba(0,0,0,0.45);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    /* canonical light theme */
    --bg-base: #FFFFFF;
    --bg-elevated: #F6F8FA;
    --bg-deep: #EAEEF2;
    --fg-default: #1F2328;
    --fg-muted: #59636E;
    --fg-dim: #6E7781;
    --accent-brand: #1A7F37;
    --accent-title: #1B7C83;
    --warn: #9A6700;
    --danger: #CF222E;
    --info: #0969DA;
    --purple: #8250DF;

    --bg: var(--bg-base);
    --bg-1: var(--bg-elevated);
    --bg-2: #EEF1F4;
    --line: #D1D9E0;
    --line-2: #BDC4CC;

    --fg: var(--fg-default);
    --fg-mut: var(--fg-muted);

    --accent: var(--accent-brand);
    --accent-ink: #FFFFFF;
    --link: var(--info);
    --focus: var(--info);

    --shadow-1: 0 1px 0 rgba(0,0,0,0.04), 0 8px 24px rgba(16,22,28,0.08);
  }
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--link); text-decoration-color: color-mix(in srgb, var(--link) 40%, transparent); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--link); }
hr { border: 0; border-top: var(--border); margin: var(--s-8) 0; }
code, kbd, pre, samp { font-family: var(--mono); }
button { font: inherit; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--s-5);
}
.section {
  padding: var(--s-10) 0;
  border-top: var(--border);
}
.section:first-of-type { border-top: 0; }
.section-head { margin-bottom: var(--s-6); }
.section-kicker {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-mut);
  margin-bottom: var(--s-2);
  letter-spacing: 0.02em;
}
.section-kicker::before { content: "// "; color: var(--fg-dim); }
h1, h2, h3 { margin: 0 0 var(--s-3) 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.08; font-weight: 700; }
h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  line-height: 1.2;
  font-weight: 650;
  color: var(--accent-title);
}
h3 { font-size: 1.05rem; line-height: 1.3; font-weight: 600; }
p { margin: 0 0 var(--s-3) 0; }
.lead { color: var(--fg-mut); max-width: 62ch; font-size: 1.05rem; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--accent-ink);
  padding: 8px 12px; border-radius: 6px; font-weight: 600;
}
.skip-link:focus { left: 12px; top: 12px; z-index: 100; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-3) 0;
  gap: var(--s-4);
}
.brand {
  display: inline-flex; align-items: center; gap: var(--s-2);
  color: var(--fg); text-decoration: none; font-weight: 600;
}
.brand .logo { width: 28px; height: 28px; }
.brand-name { font-family: var(--mono); font-size: 15px; letter-spacing: -0.01em; }
.brand-name::before { content: "$ "; color: var(--accent); }
.nav-links {
  display: none; gap: var(--s-5); list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  color: var(--fg-mut); text-decoration: none; font-size: 14px; font-family: var(--mono);
}
.nav-links a:hover { color: var(--fg); }
@media (min-width: 820px) { .nav-links { display: inline-flex; } }

/* ---------- hero ---------- */
.hero {
  padding: var(--s-10) 0 var(--s-8);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(1100px 400px at 10% -10%, color-mix(in srgb, var(--accent-brand) 10%, transparent), transparent 60%),
    radial-gradient(900px 320px at 110% 10%, color-mix(in srgb, var(--info) 8%, transparent), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero > * { position: relative; z-index: 1; }

/* p5 hero background: absolute behind content, inert to pointer + AT. */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-bg canvas {
  display: block;
  width: 100%;
  height: 100%;
}
/* Soft vignette between the sketch and the hero copy so text stays WCAG AA. */
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      720px 320px at 22% 42%,
      color-mix(in srgb, var(--bg-base) 72%, transparent),
      transparent 70%
    );
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; }
@media (max-width: 639px) {
  .hero-bg { display: none; }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  align-items: center;
}
.hero-grid img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  border: var(--border);
}
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.05fr 1fr; gap: var(--s-10); }
}
.hero h1 { color: var(--fg-default); }
.hero h1 .accent { color: var(--accent-brand); }
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-family: var(--mono); font-size: 12px; color: var(--fg-mut);
  border: var(--border); border-radius: 999px; padding: 6px 10px;
  background: var(--bg-1);
  margin-bottom: var(--s-5);
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-brand) 25%, transparent);
}
.hero-sub {
  color: var(--fg-mut);
  font-size: 1.1rem;
  max-width: 58ch;
  margin-bottom: var(--s-6);
}
.cta-row { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.btn {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 12px 18px; border-radius: 8px;
  text-decoration: none; font-weight: 600; font-size: 15px;
  border: 1px solid transparent;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}
.btn-primary {
  background: var(--accent); color: var(--accent-ink);
}
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 85%, white); }
.btn-secondary {
  background: var(--bg-1); color: var(--fg);
  border-color: var(--line-2);
}
.btn-secondary:hover { border-color: var(--fg-mut); }
.btn:active { transform: translateY(1px); }
@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}

/* ---------- terminal window ---------- */
.term {
  background: var(--bg-1);
  border: var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.6;
}
.term-chrome {
  display: flex; align-items: center; gap: var(--s-2);
  background: var(--bg-2);
  padding: 10px 12px;
  border-bottom: var(--border);
}
.term-dots { display: inline-flex; gap: 6px; }
.term-dots span {
  width: 12px; height: 12px; border-radius: 50%;
  display: inline-block;
}
.term-dots .r { background: var(--danger); }
.term-dots .y { background: var(--warn); }
.term-dots .g { background: var(--accent-brand); }
.term-path {
  flex: 1; text-align: center;
  color: var(--fg-mut); font-size: 12px;
  letter-spacing: 0.02em;
  user-select: none;
}
.term-body {
  padding: var(--s-4) var(--s-4) var(--s-5);
  overflow-x: auto;
}
.term-body pre { margin: 0; white-space: pre; }
.term-line { display: block; }
.term-prompt { color: var(--accent-brand); }
.term-user { color: var(--info); }
.term-host { color: var(--purple); }
.term-cwd { color: var(--fg-mut); }
.term-cmd { color: var(--fg); }
.term-ok { color: var(--accent-brand); }
.term-mut { color: var(--fg-mut); }
.term-warn { color: var(--warn); }

.caret {
  display: inline-block; width: 8px; height: 1.1em; vertical-align: -2px;
  background: var(--fg); margin-left: 2px;
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 50% { background: transparent; } }
@media (prefers-reduced-motion: reduce) {
  .caret { animation: none; background: var(--fg); }
}

.copy-btn {
  background: transparent;
  color: var(--fg-mut);
  border: 1px solid var(--line-2);
  border-radius: 6px;
  padding: 4px 8px;
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
}
.copy-btn:hover { color: var(--fg); border-color: var(--fg-mut); }
.copy-btn[data-copied="true"] { color: var(--accent-brand); border-color: var(--accent-brand); }

/* ---------- problem card ---------- */
.problem-card {
  background: var(--bg-1);
  border: var(--border);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius);
  padding: var(--s-6);
}
.problem-card p { color: var(--fg-mut); margin-bottom: var(--s-2); }
.problem-card strong { color: var(--fg); font-weight: 600; }
.problem-card code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--fg);
}
.counter {
  font-family: var(--mono);
  color: var(--warn);
  font-size: 14px;
  letter-spacing: 0.02em;
}

/* ---------- solution row ---------- */
.solution-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}
@media (min-width: 720px) { .solution-grid { grid-template-columns: repeat(3, 1fr); } }
.solution-card {
  background: var(--bg-1);
  border: var(--border);
  border-radius: var(--radius);
  padding: var(--s-5);
}
.solution-card .num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  margin-bottom: var(--s-3);
}
.solution-card h3 {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--accent-brand);
}
.solution-card p { color: var(--fg-mut); margin: 0; }
.solution-card code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--fg);
}

/* ---------- services grid ---------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
}
@media (min-width: 640px)  { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }

.svc {
  background: var(--bg-1);
  border: var(--border);
  border-radius: var(--radius);
  padding: var(--s-4);
  display: grid;
  grid-template-columns: 40px 1fr auto;
  grid-template-rows: auto auto;
  grid-template-areas:
    "icon name chip"
    "icon desc desc";
  column-gap: var(--s-3);
  row-gap: var(--s-1);
}
.svc-icon {
  grid-area: icon;
  width: 40px; height: 40px;
  border-radius: 8px;
  background: var(--bg-2);
  border: var(--border);
  display: grid; place-items: center;
  color: var(--fg-mut);
  font-family: var(--mono);
  font-size: 14px;
  overflow: hidden;
}
/* Native brand logo inside the icon slot. Logos keep their own color;
 * the card background supplies contrast. object-fit: contain so odd aspect
 * ratios (e.g. Jellyseerr's wordmark lockup) do not crop. */
.service-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
}
.svc-icon-fallback {
  font-weight: 600;
  color: var(--fg);
}
.svc-name {
  grid-area: name;
  font-weight: 650;
  color: var(--fg);
  display: flex; align-items: baseline; gap: var(--s-2);
}
.svc-port {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-mut);
  font-weight: 400;
}
.svc-chip {
  grid-area: chip;
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  color: var(--fg-mut);
  align-self: start;
}
.svc-chip.required {
  color: var(--accent-brand);
  border-color: color-mix(in srgb, var(--accent-brand) 50%, var(--line-2));
}
.svc-chip.optional { color: var(--fg-mut); }
.svc-desc {
  grid-area: desc;
  color: var(--fg-mut);
  font-size: 14px;
  margin: 0;
}
.svc-desc code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--fg);
}
.svc-role {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--fg-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-right: 6px;
  padding: 1px 6px;
  border: 1px solid var(--line-2);
  border-radius: 4px;
  vertical-align: 1px;
}

/* ---------- auto-wiring callouts ---------- */
.wiring-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
}
@media (min-width: 720px) { .wiring-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .wiring-grid { grid-template-columns: repeat(3, 1fr); } }
.wire {
  background: var(--bg-1);
  border: var(--border);
  border-radius: var(--radius);
  padding: var(--s-5);
}
.wire h3 {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: var(--s-2);
}
.wire h3::before {
  content: "# ";
  color: var(--accent-brand);
  font-weight: 400;
}
.wire p { color: var(--fg-mut); margin: 0; font-size: 14px; }
.wire code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--fg);
}

/* ---------- matrix / table ---------- */
.matrix-wrap { overflow-x: auto; border: var(--border); border-radius: var(--radius); background: var(--bg-1); }
.matrix {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-size: 14px;
}
.matrix th, .matrix td {
  padding: var(--s-3) var(--s-4);
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.matrix thead th {
  background: var(--bg-2);
  color: var(--accent-title);
  font-weight: 650;
  font-family: var(--mono);
  font-size: 13px;
  border-bottom: 1px solid var(--line-2);
}
.matrix tbody th {
  color: var(--fg-mut);
  font-family: var(--mono);
  font-weight: 500;
  font-size: 12px;
  width: 140px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.matrix tr:last-child td, .matrix tr:last-child th { border-bottom: 0; }
.matrix code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--fg);
}

/* ---------- LAN hostnames ---------- */
.hosts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
}
@media (min-width: 820px) { .hosts-grid { grid-template-columns: repeat(3, 1fr); } }
.host-card {
  background: var(--bg-1);
  border: var(--border);
  border-radius: var(--radius);
  padding: var(--s-5);
  display: flex; flex-direction: column; gap: var(--s-3);
}
.host-card h3 { font-family: var(--mono); font-size: 0.95rem; color: var(--fg); margin: 0; }
.host-card h3::before { content: "# "; color: var(--accent-brand); }
.host-card p { color: var(--fg-mut); font-size: 14px; margin: 0; }
.host-card code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--fg);
}
.snippet {
  background: var(--bg);
  border: var(--border);
  border-radius: 8px;
  padding: var(--s-3);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--fg);
  overflow-x: auto;
  margin: 0;
}
.snippet .c { color: var(--fg-mut); }

/* ---------- requirements ---------- */
.req-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: 1fr; gap: var(--s-2);
}
@media (min-width: 720px) { .req-list { grid-template-columns: repeat(3, 1fr); } }
.req-list li {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--fg);
  background: var(--bg-1);
  border: var(--border);
  border-radius: 8px;
  padding: var(--s-3) var(--s-4);
}
.req-list li::before {
  content: "\2713 ";
  color: var(--accent-brand);
  font-weight: 700;
}

/* ---------- FAQ ---------- */
.faq { display: grid; grid-template-columns: 1fr; gap: var(--s-2); }
.faq details {
  background: var(--bg-1);
  border: var(--border);
  border-radius: var(--radius);
  padding: 0;
}
.faq details[open] { border-color: var(--line-2); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: var(--s-4) var(--s-5);
  font-weight: 600;
  color: var(--fg);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-4);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--mono);
  color: var(--fg-mut);
  font-size: 18px;
  line-height: 1;
}
.faq details[open] summary::after { content: "\2212"; }
.faq .a {
  padding: 0 var(--s-5) var(--s-5);
  color: var(--fg-mut);
}
.faq .a code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--fg);
}

/* ---------- footer ---------- */
.site-footer {
  border-top: var(--border);
  padding: var(--s-8) 0 var(--s-5);
  color: var(--fg-mut);
  font-size: 14px;
  background: var(--bg-1);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  padding-bottom: var(--s-6);
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; gap: var(--s-8); }
}
.footer-col .footer-h {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-title);
  margin: 0 0 var(--s-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.footer-brand {
  font-size: 18px;
  color: var(--fg);
  font-weight: 600;
  margin-bottom: var(--s-2);
}
.footer-brand::before { content: "$ "; color: var(--accent-brand); }
.footer-tag {
  color: var(--fg-mut);
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
}
.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  font-size: 13.5px;
}
.footer-list a { color: var(--fg-mut); text-decoration: none; }
.footer-list a:hover { color: var(--fg); text-decoration: underline; text-decoration-color: var(--accent-brand); }
.footer-bottom {
  border-top: var(--border);
  padding-top: var(--s-4);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-3);
  font-size: 12.5px;
  color: var(--fg-dim);
}
.footer-bottom a { color: var(--fg-mut); }
.footer-bottom a:hover { color: var(--fg); }
.mono { font-family: var(--mono); }

/* ---------- brand ornaments (rules, textures, brackets) ---------- */
/* Scanline / ascii rules replace the section border visually; keep the
 * underlying border-top for print and fallbacks. */
.rule-scanline,
.rule-ascii {
  display: block;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--s-5);
  box-sizing: content-box;
  opacity: 0.85;
}
.rule-scanline { height: 4px; }
.rule-ascii    { height: 24px; margin-top: var(--s-4); margin-bottom: calc(var(--s-4) * -1); }
/* The ruled section already carries its own border-top; suppress it when
 * a rule image is preceding so we do not double-line. */
.rule-scanline + .section,
.rule-ascii    + .section { border-top: 0; }
/* In light mode the ornaments are still phosphor green against whatever
 * sits behind them. They are SVG with hard-coded colors, so no override. */
@media (prefers-color-scheme: light) {
  .rule-scanline,
  .rule-ascii { opacity: 0.65; }
}

/* Dot-grid texture behind the auto-wiring callouts. Dark-optimized:
 * the SVG's own alpha (30%) + our low opacity give a quiet scan-pattern. */
.section-textured {
  position: relative;
  isolation: isolate;
}
.dot-grid-bg,
.section-textured::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: url("assets/ornaments/dot-grid.svg");
  background-repeat: repeat;
  background-size: 320px 80px;
  opacity: 0.35;
  pointer-events: none;
}
@media (prefers-color-scheme: light) {
  .section-textured::before { opacity: 0.18; }
}

/* Bracket ornaments flank the FAQ block on wide screens; hide on narrow. */
.faq-frame {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
  align-items: stretch;
}
.faq-frame .bracket { display: none; }
@media (min-width: 1020px) {
  .faq-frame { grid-template-columns: 48px 1fr 48px; gap: var(--s-5); }
  .faq-frame .bracket {
    display: block;
    width: 48px;
    height: auto;
    align-self: stretch;
    object-fit: contain;
    opacity: 0.7;
  }
}

/* Footer wordmark: replaces the plain text lockup. */
.footer-wordmark {
  display: block;
  width: auto;
  max-width: 240px;
  height: 36px;
  margin: 0 0 var(--s-2);
}

/* ---------- print ---------- */
@media print {
  .site-header, .cta-row, .copy-btn, .hero::before,
  .rule-scanline, .rule-ascii, .bracket,
  .section-textured::before { display: none !important; }
  body { background: #fff; color: #000; }
  a { color: #000; text-decoration: underline; }
  .section { border-color: #999; padding: 12pt 0; }
  .term, .svc, .wire, .host-card, .problem-card, .matrix-wrap, .faq details, .site-footer {
    background: #fff; border: 1px solid #666; color: #000; box-shadow: none;
  }
  .caret { display: none; }
}