/* ==========================================================================
   Arcus Mons AI Systems — site stylesheet
   Palette and type sampled from "Arcus Mons AI Systems V1.5.pptx"
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand colours (sampled from the deck) */
  --navy-900: #0b1e30;
  --navy-800: #102a43;
  --navy-700: #1b3a5a;
  --navy-600: #2a4c6e;
  --blue-500: #2f5f87;
  --blue-300: #8fb4d6;
  --blue-200: #a9b8c7;
  --cream:    #faf7ef;
  --sand:     #ddd8cb;
  --mist:     #f1f3f6;
  --line:     #d3dae2;
  --slate:    #55606c;
  --muted:    #78838f;
  --white:    #ffffff;

  /* Semantic */
  --bg: var(--cream);
  --text: var(--slate);
  --heading: var(--navy-800);
  --rule: var(--line);

  /* Type */
  --font-serif: "Source Serif 4", Cambria, Georgia, "Times New Roman", serif;
  --font-sans: "Source Sans 3", Calibri, "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Rhythm */
  --wrap: 1160px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(4rem, 9vw, 7.5rem);
  --radius: 4px;
  --radius-lg: 8px;

  /* Elevation */
  --shadow-sm: 0 1px 2px rgba(16, 42, 67, .06), 0 2px 8px rgba(16, 42, 67, .05);
  --shadow-md: 0 2px 4px rgba(16, 42, 67, .06), 0 12px 28px rgba(16, 42, 67, .09);
  --shadow-lg: 0 4px 10px rgba(16, 42, 67, .08), 0 24px 60px rgba(16, 42, 67, .14);

  --header-h: 74px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* --------------------------------------------------------------------------
   2. Reset / base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-wrap: break-word;
}

img, svg { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--heading);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.012em;
  margin: 0 0 .5em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.25rem, 5.4vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.7vw, 2.65rem); }
h3 { font-size: clamp(1.125rem, 1.6vw, 1.3rem); }
h4 { font-size: 1.0625rem; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--blue-500); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--navy-800); }

ul { margin: 0; padding: 0; }

strong { color: var(--navy-800); font-weight: 600; }

:focus-visible {
  outline: 3px solid var(--blue-500);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -120%);
  z-index: 200;
  background: var(--navy-800);
  color: var(--white);
  padding: .75rem 1.25rem;
  border-radius: 0 0 var(--radius) var(--radius);
  font-weight: 600;
  text-decoration: none;
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); color: var(--white); }

/* --------------------------------------------------------------------------
   3. Layout primitives
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--narrow { max-width: 900px; }

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(3rem, 6vw, 4.5rem); }

.section--cream { background: var(--cream); }
.section--white { background: var(--white); }
.section--mist  { background: var(--mist); }

.section--navy {
  background: var(--navy-800);
  color: var(--blue-200);
}
.section--navy h2,
.section--navy h3,
.section--navy h4 { color: var(--white); }
.section--navy strong { color: var(--white); }
/* :not(.btn) so buttons keep their own foreground colour on dark sections. */
.section--navy a:not(.btn) { color: var(--blue-300); }

/* Section heading block */
.eyebrow {
  font-family: var(--font-sans);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.eyebrow::after {
  content: "";
  flex: 0 0 40px;
  height: 1px;
  background: var(--sand);
}
.section--navy .eyebrow,
.cta .eyebrow { color: var(--blue-300); }
.section--navy .eyebrow::after,
.section--navy .eyebrow::before,
.cta .eyebrow::after,
.cta .eyebrow::before { background: rgba(143, 180, 214, .35); }

/* Centred eyebrow outside a .section-head--center block */
.eyebrow--center { justify-content: center; }
.eyebrow--center::before {
  content: "";
  flex: 0 0 40px;
  height: 1px;
  background: var(--sand);
}

.section-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 3.75rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head--center .eyebrow::before {
  content: "";
  flex: 0 0 40px;
  height: 1px;
  background: var(--sand);
}
.section--navy .section-head--center .eyebrow::before { background: rgba(143, 180, 214, .35); }

.lede {
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  line-height: 1.6;
  color: var(--slate);
  margin-bottom: 0;
}
.section--navy .lede,
.cta .lede { color: var(--blue-200); }

.section-note {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: 1.75rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-serif);
  font-size: clamp(1.0625rem, 1.7vw, 1.25rem);
  font-style: italic;
  color: var(--navy-700);
  text-align: center;
}
.section--navy .section-note {
  border-top-color: rgba(143, 180, 214, .25);
  color: var(--blue-300);
}

/* Grids */
.grid { display: grid; gap: clamp(1.25rem, 2.4vw, 1.75rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--navy-800);
  --btn-fg: var(--white);
  --btn-bd: var(--navy-800);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  padding: .85rem 1.6rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease),
              box-shadow .18s var(--ease);
}
.btn:hover {
  color: var(--btn-fg);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn:active { transform: translateY(0); box-shadow: none; }
.btn svg { flex: 0 0 auto; }

.btn--primary:hover { --btn-bg: var(--navy-700); --btn-bd: var(--navy-700); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--navy-800);
  --btn-bd: var(--line);
}
.btn--ghost:hover { --btn-bg: var(--white); --btn-bd: var(--navy-800); }

.btn--light {
  --btn-bg: var(--cream);
  --btn-fg: var(--navy-800);
  --btn-bd: var(--cream);
}
.btn--light:hover { --btn-bg: var(--white); --btn-bd: var(--white); }

.btn--outline-light {
  --btn-bg: transparent;
  --btn-fg: var(--white);
  --btn-bd: rgba(169, 184, 199, .5);
}
.btn--outline-light:hover { --btn-bd: var(--white); --btn-bg: rgba(255, 255, 255, .08); }

.btn--sm { padding: .55rem 1.05rem; font-size: .9375rem; }
.btn--lg { padding: 1rem 2rem; font-size: 1.0625rem; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: .875rem;
  align-items: center;
}

/* --------------------------------------------------------------------------
   5. Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 239, .93);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
@supports (backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px)) {
  .site-header {
    -webkit-backdrop-filter: saturate(1.4) blur(10px);
    backdrop-filter: saturate(1.4) blur(10px);
  }
}
.site-header.is-stuck {
  border-bottom-color: var(--rule);
  box-shadow: 0 1px 16px rgba(16, 42, 67, .07);
}

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  color: var(--navy-800);
  margin-right: auto;
  flex-shrink: 0;
}
.brand:hover { color: var(--navy-800); }
.brand img { width: 40px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.brand-sub {
  font-size: .625rem;
  font-weight: 600;
  letter-spacing: .19em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-top: .2em;
}

.nav { display: flex; align-items: center; gap: clamp(.75rem, 2vw, 1.9rem); }
.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(.75rem, 2vw, 1.9rem);
  list-style: none;
}
.nav-list a {
  position: relative;
  color: var(--navy-700);
  font-size: .9375rem;
  font-weight: 600;
  text-decoration: none;
  padding: .4rem 0;
  transition: color .18s var(--ease);
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--blue-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s var(--ease);
}
.nav-list a:hover { color: var(--navy-800); }
.nav-list a:hover::after,
.nav-list a.is-active::after { transform: scaleX(1); }
.nav-list a.is-active { color: var(--navy-800); }

.nav-cta { display: flex; align-items: center; gap: .6rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--navy-800);
  border-radius: 2px;
  transition: transform .22s var(--ease), opacity .18s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1000px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--cream);
    border-bottom: 1px solid var(--rule);
    box-shadow: var(--shadow-lg);
    padding: 1rem var(--gutter) 1.75rem;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list a {
    display: block;
    padding: .9rem .25rem;
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--rule);
  }
  .nav-list a::after { display: none; }
  .nav-list a.is-active { color: var(--blue-500); }
  .nav-cta { flex-direction: column; align-items: stretch; margin-top: 1.25rem; }
  .nav-cta .btn { width: 100%; }
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--navy-800);
  color: var(--blue-200);
  overflow: hidden;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.hero::before {
  width: 780px; height: 780px;
  top: -320px; right: -220px;
  background: radial-gradient(circle, rgba(47, 95, 135, .5) 0%, rgba(16, 42, 67, 0) 68%);
}
.hero::after {
  width: 620px; height: 620px;
  bottom: -340px; left: -200px;
  background: radial-gradient(circle, rgba(143, 180, 214, .16) 0%, rgba(16, 42, 67, 0) 70%);
}
.hero > .wrap { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
}

.hero h1 { color: var(--white); margin-bottom: .45em; }
.hero h1 .accent { color: var(--blue-300); display: block; }

.hero-lede {
  font-size: clamp(1.0625rem, 1.6vw, 1.1875rem);
  color: var(--blue-200);
  max-width: 34rem;
  margin-bottom: 2rem;
}

.hero .btn-row { margin-bottom: 1.5rem; }

.hero-reassure {
  font-size: .9375rem;
  color: var(--blue-200);
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  margin: 0;
}
.hero-reassure svg { color: var(--blue-300); flex: 0 0 auto; margin-top: .28rem; }

.hero-capabilities {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid rgba(143, 180, 214, .22);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem .9rem;
  list-style: none;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--blue-300);
}
.hero-capabilities li { display: flex; align-items: center; gap: .9rem; }
.hero-capabilities li:not(:last-child)::after {
  content: "";
  width: 4px; height: 4px;
  border-radius: 50%;
  background: rgba(143, 180, 214, .5);
}
@media (max-width: 700px) {
  .hero-capabilities { gap: .5rem 1.3rem; }
  .hero-capabilities li:not(:last-child)::after { display: none; }
}

/* Hero product panel */
.hero-panel {
  position: relative;
  background: linear-gradient(160deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .03));
  border: 1px solid rgba(143, 180, 214, .25);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-lg);
}
.hero-panel-label {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .55rem;
}
.hero-panel-label .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #6fcf97;
  box-shadow: 0 0 0 3px rgba(111, 207, 151, .18);
}
/* Capped so the product shot does not dominate once the hero stacks. */
.hero-panel img {
  margin: 0 auto;
  max-width: 420px;
  filter: drop-shadow(0 24px 34px rgba(0, 0, 0, .42));
}

.hero-specs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.5rem;
  background: rgba(143, 180, 214, .22);
  border: 1px solid rgba(143, 180, 214, .22);
  border-radius: var(--radius);
  overflow: hidden;
  list-style: none;
}
.hero-specs li {
  background: var(--navy-800);
  padding: .9rem .5rem;
  text-align: center;
}
.hero-specs .k {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--white);
}
.hero-specs .v {
  display: block;
  font-size: .6875rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-top: .2rem;
}

/* --------------------------------------------------------------------------
   7. Stats
   -------------------------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
@media (max-width: 860px) { .stats { grid-template-columns: minmax(0, 1fr); } }

.stat {
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.25rem, 2.5vw, 2.25rem);
  border-left: 1px solid var(--rule);
}
.stat:first-child { border-left: 0; padding-left: 0; }
@media (max-width: 860px) {
  .stat { border-left: 0; border-top: 1px solid var(--rule); padding-inline: 0; }
  .stat:first-child { border-top: 0; padding-top: 0; }
}
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(2.75rem, 6vw, 3.9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--navy-800);
  letter-spacing: -.02em;
  margin-bottom: .55rem;
}
.stat-text { font-size: 1rem; color: var(--slate); margin-bottom: .75rem; }
.stat-src {
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--muted);
  margin: 0;
}

/* --------------------------------------------------------------------------
   8. Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 2.6vw, 2rem);
  box-shadow: var(--shadow-sm);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease),
              border-color .22s var(--ease);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-300);
}
.card h3 { margin-bottom: .5rem; }
.card p { font-size: .9875rem; margin-bottom: 0; color: var(--slate); }

.section--white .card { background: var(--cream); }

.icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: rgba(47, 95, 135, .09);
  color: var(--blue-500);
  margin-bottom: 1.1rem;
}
.icon svg { width: 22px; height: 22px; }

.section--navy .card {
  background: rgba(255, 255, 255, .045);
  border-color: rgba(143, 180, 214, .22);
  box-shadow: none;
}
.section--navy .card:hover { border-color: rgba(143, 180, 214, .5); }
.section--navy .card p { color: var(--blue-200); }
.section--navy .icon { background: rgba(143, 180, 214, .14); color: var(--blue-300); }

/* Numbered path steps */
.path { counter-reset: step; }
.path-step {
  position: relative;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 2.5vw, 1.9rem);
  counter-increment: step;
}
.path-step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue-300);
  line-height: 1;
  margin-bottom: .9rem;
}
.path-step h3 { font-size: 1.125rem; margin-bottom: .4rem; }
.path-step p { font-size: .9375rem; margin-bottom: 0; }
.path-step::after {
  content: "";
  position: absolute;
  top: 50%;
  right: calc(-1 * clamp(1.25rem, 2.4vw, 1.75rem));
  width: clamp(1.25rem, 2.4vw, 1.75rem);
  height: 1px;
  background: var(--sand);
}
.path-step:last-child::after { display: none; }
@media (max-width: 900px) { .path-step::after { display: none; } }

/* Feature rows (icon + text) */
.feature { display: flex; gap: 1.1rem; align-items: flex-start; }
.feature .icon { flex: 0 0 46px; margin-bottom: 0; }
.feature h3 { font-size: 1.0625rem; margin-bottom: .3rem; }
.feature p { font-size: .9375rem; margin-bottom: 0; }

/* --------------------------------------------------------------------------
   9. Architecture diagram
   -------------------------------------------------------------------------- */
.arch {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 2.25rem);
  align-items: start;
}
@media (max-width: 900px) { .arch { grid-template-columns: minmax(0, 1fr); } }

.zone {
  border: 1px solid rgba(143, 180, 214, .3);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  background: rgba(255, 255, 255, .04);
}
.zone--outside {
  border-style: dashed;
  background: transparent;
}
.zone-title {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .55rem;
}

.node {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(143, 180, 214, .22);
  border-radius: var(--radius);
  padding: .85rem 1rem;
  display: flex;
  align-items: center;
  gap: .7rem;
  color: var(--white);
  font-size: .9375rem;
  font-weight: 600;
}
.node svg { color: var(--blue-300); flex: 0 0 auto; }

.node-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
}
@media (max-width: 560px) { .node-row { grid-template-columns: minmax(0, 1fr); } }

.arch-connector {
  height: 30px;
  margin: .5rem auto;
  width: 1px;
  background: linear-gradient(to bottom, rgba(143, 180, 214, .1), rgba(143, 180, 214, .55));
  position: relative;
}
.arch-connector::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  transform: translate(-50%, 50%) rotate(45deg);
  width: 6px; height: 6px;
  border-right: 1px solid rgba(143, 180, 214, .55);
  border-bottom: 1px solid rgba(143, 180, 214, .55);
}

.server {
  background: linear-gradient(150deg, rgba(47, 95, 135, .45), rgba(27, 58, 90, .55));
  border: 1px solid rgba(143, 180, 214, .45);
  border-radius: var(--radius-lg);
  padding: clamp(1.1rem, 2.2vw, 1.5rem);
}
.server-name {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
}
.server-name svg { color: var(--blue-300); flex: 0 0 auto; }
.server-list { list-style: none; display: grid; gap: .65rem; }
.server-list li {
  display: flex;
  gap: .65rem;
  align-items: flex-start;
  font-size: .9375rem;
  color: var(--blue-200);
  line-height: 1.5;
}
.server-list svg { flex: 0 0 auto; margin-top: .3rem; color: var(--blue-300); }

.zone-foot {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(143, 180, 214, .2);
  font-size: .875rem;
  color: var(--blue-200);
}

.offline-badge {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin-top: 1.5rem;
  padding: .6rem 1rem;
  border-radius: var(--radius-lg);
  background: rgba(111, 207, 151, .12);
  border: 1px solid rgba(111, 207, 151, .35);
  color: #a8e6c1;
  font-size: .875rem;
  font-weight: 600;
  align-items: flex-start;
}
.offline-badge svg { flex: 0 0 auto; margin-top: .18rem; }

/* --------------------------------------------------------------------------
   10. Process
   -------------------------------------------------------------------------- */
.process { counter-reset: phase; list-style: none; display: grid; gap: 0; }
.process-item {
  counter-increment: phase;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  padding: clamp(1.75rem, 3vw, 2.25rem) 0;
  border-top: 1px solid var(--rule);
  align-items: start;
}
.process-item:last-child { border-bottom: 1px solid var(--rule); }
@media (max-width: 640px) { .process-item { grid-template-columns: minmax(0, 1fr); gap: .5rem; } }

.process-num {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 700;
  line-height: .9;
  color: var(--sand);
  letter-spacing: -.03em;
}
.process-item h3 { margin-bottom: .4rem; }
.process-item p { margin-bottom: 0; }
/* The list's own closing rule serves as the divider — no second line. */
.process + .section-note { border-top: 0; padding-top: 0; }

/* --------------------------------------------------------------------------
   11. FAQ
   -------------------------------------------------------------------------- */
.faq { max-width: 52rem; margin-inline: auto; }
.faq-item { border-bottom: 1px solid var(--rule); }
.faq-item:first-child { border-top: 1px solid var(--rule); }
.faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.35rem .25rem;
  font-family: var(--font-serif);
  font-size: clamp(1.0625rem, 1.7vw, 1.25rem);
  font-weight: 600;
  color: var(--navy-800);
  transition: color .18s var(--ease);
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item > summary::marker { content: ""; }
.faq-item > summary:hover { color: var(--blue-500); }
.faq-icon {
  flex: 0 0 22px;
  width: 22px; height: 22px;
  margin-top: .3rem;
  position: relative;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--blue-500);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}
.faq-icon::before { top: 10px; left: 2px; width: 18px; height: 2px; }
.faq-icon::after  { left: 10px; top: 2px; width: 2px; height: 18px; }
.faq-item[open] .faq-icon::after { transform: scaleY(0); opacity: 0; }
.faq-answer { padding: 0 3rem 1.6rem .25rem; }
.faq-answer p { font-size: 1rem; }
@media (max-width: 600px) { .faq-answer { padding-right: .25rem; } }

/* --------------------------------------------------------------------------
   12. Final CTA
   -------------------------------------------------------------------------- */
.cta {
  position: relative;
  background: var(--navy-800);
  overflow: hidden;
  text-align: center;
}
.cta::before {
  content: "";
  position: absolute;
  width: 900px; height: 900px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(47, 95, 135, .45) 0%, rgba(16, 42, 67, 0) 65%);
  pointer-events: none;
}
.cta > .wrap { position: relative; z-index: 1; }
.cta h2 { color: var(--white); }
.cta .lede { margin-inline: auto; max-width: 40rem; }

.cta-phone {
  display: inline-flex;
  align-items: center;
  gap: .85rem;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 1.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 5.2vw, 3rem);
  font-weight: 700;
  letter-spacing: -.015em;
  color: var(--white);
  text-decoration: none;
  transition: color .18s var(--ease);
}
.cta-phone:hover { color: var(--blue-300); }
.cta-phone svg { flex: 0 0 auto; width: .78em; height: .78em; color: var(--blue-300); }

.cta .btn-row { justify-content: center; }

.cta-meta {
  margin-top: 1.75rem;
  font-size: .9375rem;
  color: var(--blue-200);
}
.cta-meta a { color: var(--blue-300); }

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--navy-900);
  color: var(--blue-200);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  font-size: .9375rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
  gap: clamp(1.75rem, 4vw, 3rem);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: minmax(0, 1fr); } }

.footer-brand { display: flex; align-items: center; gap: .75rem; margin-bottom: 1.1rem; }
.footer-brand img { width: 44px; }
.footer-brand .brand-name { color: var(--white); }
.footer-brand .brand-sub { color: var(--blue-300); }
.footer-about { max-width: 26rem; color: var(--blue-200); }

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.1rem;
}
.footer-col ul { list-style: none; display: grid; gap: .6rem; }
.footer-col a { color: var(--blue-200); text-decoration: none; }
.footer-col a:hover { color: var(--white); text-decoration: underline; }
.footer-col address { font-style: normal; color: var(--blue-200); }

.footer-bottom {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid rgba(143, 180, 214, .18);
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.5rem;
  align-items: center;
  font-size: .8125rem;
  color: #8ea0b2;
}
.footer-legal { display: flex; flex-wrap: wrap; gap: 1.25rem; list-style: none; }
.footer-legal a { color: #8ea0b2; text-decoration: none; }
.footer-legal a:hover { color: var(--white); text-decoration: underline; }

/* --------------------------------------------------------------------------
   14. Back to top
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 90;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  background: var(--navy-800);
  color: var(--white);
  border: 1px solid var(--navy-700);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s,
              background-color .18s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--blue-500); }

/* --------------------------------------------------------------------------
   15. Legal / content pages
   -------------------------------------------------------------------------- */
.page-header {
  background: var(--navy-800);
  color: var(--blue-200);
  padding-block: clamp(3rem, 7vw, 5rem);
}
.page-header h1 { color: var(--white); margin-bottom: .3em; font-size: clamp(2rem, 4.4vw, 3rem); }
.page-header p { margin: 0; color: var(--blue-200); }

.prose { max-width: 46rem; }
.prose h2 {
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
}
.prose h2:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }
.prose ul { padding-left: 1.25rem; margin: 0 0 1.1em; }
.prose li { margin-bottom: .5rem; }
.prose .updated {
  font-size: .8125rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2.25rem;
}

/* --------------------------------------------------------------------------
   16. Utilities & motion
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }

/* Scroll reveal — only applied when JS is available */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.js .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   17. Print
   -------------------------------------------------------------------------- */
@media print {
  .site-header, .to-top, .nav-toggle, .skip-link { display: none !important; }
  .hero::before, .hero::after, .cta::before { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .section { padding-block: 1.5rem; }
  .hero, .section--navy, .cta, .site-footer, .page-header, .server, .zone {
    background: #fff !important;
    color: #000 !important;
  }
  .hero h1, .hero .accent, .section--navy h2, .section--navy h3, .section--navy .lede,
  .cta h2, .cta-phone, .page-header h1, .page-header p, .node, .server-list li {
    color: #000 !important;
  }
  .card, .path-step { box-shadow: none; break-inside: avoid; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; }
}