/* ============================================================
   AMMACATIZE — ammacatize.com design system
   Palette: blue #1a5a8c · teal #1a9b8c · navy #0d2334
   Type: Archivo (display) · Public Sans (body) · IBM Plex Mono (data)
   ============================================================ */

:root {
  --blue: #1a5a8c;
  --blue-deep: #134669;
  --teal: #1a9b8c;
  --teal-deep: #14806f;
  --navy: #0d2334;
  --navy-2: #12314a;
  --ink: #16242f;
  --muted: #5c6c77;
  --faint: #8fa0aa;
  --line: #e3e9ee;
  --line-dark: rgba(255,255,255,.14);
  --bg: #ffffff;
  --bg-alt: #f4f7f9;
  --teal-tint: #e8f5f3;
  --blue-tint: #eaf1f7;
  --ok: #1a7f4e;
  --err: #b3382f;
  --radius: 4px;
  --shadow-1: 0 1px 2px rgba(13,35,52,.06), 0 8px 24px rgba(13,35,52,.07);
  --shadow-2: 0 2px 6px rgba(13,35,52,.08), 0 18px 44px rgba(13,35,52,.12);
  --font-display: "Archivo", sans-serif;
  --font-body: "Public Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --wrap: 1180px;
  --gutter: clamp(20px, 4vw, 40px);
  --constellation: 45, 199, 183;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 120px; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--teal-deep); }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }

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

::selection { background: var(--teal-tint); color: var(--navy); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

/* ---------- Typography ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.022em;
  color: var(--navy);
}

.display {
  font-size: clamp(2.5rem, 5.2vw, 4.05rem);
  font-weight: 750;
  font-variation-settings: "wdth" 106;
}

h2, .h2 {
  font-size: clamp(1.85rem, 3.3vw, 2.7rem);
  font-variation-settings: "wdth" 104;
  line-height: 1.12;
}

h3, .h3 {
  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.25rem);
  line-height: 1.65;
  color: var(--muted);
  max-width: 46ch;
}

p + p { margin-top: 1em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--teal);
  flex: none;
}
.on-dark .eyebrow { color: #7fd4c8; }
.on-dark .eyebrow::before { background: var(--teal); }

.mono { font-family: var(--font-mono); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .98rem;
  letter-spacing: .01em;
  line-height: 1;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
  border: 1.5px solid transparent;
}
.btn .arr { transition: transform .18s ease; }
.btn:hover .arr { transform: translateX(4px); }

.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--navy-2); color: #fff; }

.btn-ghost { border-color: rgba(22,36,47,.28); color: var(--navy); background: transparent; }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal-deep); }

.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: var(--teal-tint); color: var(--navy); }

.btn-teal { background: var(--teal); color: #fff; }
.btn-teal:hover { background: var(--teal-deep); color: #fff; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--blue);
}
.link-arrow .arr { transition: transform .18s ease; }
.link-arrow:hover { color: var(--teal-deep); }
.link-arrow:hover .arr { transform: translateX(4px); }

/* ---------- Utility bar ---------- */

.utility {
  background: var(--navy);
  color: rgba(255,255,255,.78);
  font-size: .8rem;
  letter-spacing: .02em;
}
.utility .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 36px;
  gap: 16px;
}
.utility a { color: #fff; font-weight: 600; }
.utility a:hover { color: #7fd4c8; }
.utility .u-right { display: flex; gap: 22px; align-items: center; }
.utility .dot-live {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal);
  margin-right: 7px;
  animation: pulse-dot 2.2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(26,155,140,.55); }
  55% { box-shadow: 0 0 0 6px rgba(26,155,140,0); }
}

/* ---------- Header / nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(13,35,52,.09); }
.site-header::after {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--navy);
}
.brand:hover { color: var(--navy); }
.brand-mark { flex: none; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-variation-settings: "wdth" 112;
  font-size: 1.22rem;
  letter-spacing: .04em;
}
.brand-name .hi { color: var(--teal); }
.brand-tag {
  display: block;
  font-family: var(--font-body);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 1px;
}

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  position: relative;
  display: inline-block;
  padding: 10px 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .96rem;
  color: var(--ink);
  border-radius: var(--radius);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.nav-links a:hover { color: var(--navy); }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav-links a[aria-current="page"] { color: var(--navy); }
.nav-cta { margin-left: 14px; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 11px;
  width: 20px; height: 2px;
  background: var(--navy);
  transition: transform .22s ease, opacity .22s ease, top .22s ease;
}
.nav-toggle span { top: 21px; }
.nav-toggle span::before { top: -6px; left: 0; }
.nav-toggle span::after { top: 6px; left: 0; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Sections ---------- */

.section { padding: clamp(72px, 9vw, 118px) 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--navy); color: rgba(255,255,255,.82); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-tight { padding: clamp(52px, 6vw, 80px) 0; }

.section-head { max-width: 720px; margin-bottom: clamp(40px, 5vw, 64px); }
.section-head .lead { margin-top: 18px; }

.grid { display: grid; gap: clamp(24px, 3vw, 40px); }
.split-57 { grid-template-columns: 5fr 7fr; align-items: start; }
.split-75 { grid-template-columns: 7fr 5fr; align-items: start; }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Reveal on scroll ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s cubic-bezier(.2,.6,.2,1), transform .6s cubic-bezier(.2,.6,.2,1);
}
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }

/* ---------- Hero ---------- */

.hero { padding: clamp(64px, 8vw, 108px) 0 clamp(56px, 7vw, 92px); position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(36px, 5vw, 72px); align-items: center; }
.hero h1 { margin-bottom: 24px; }
.hero .lead { margin-bottom: 36px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 75% 85% at 78% 18%, rgba(0,0,0,.5), transparent 68%);
  -webkit-mask-image: radial-gradient(ellipse 75% 85% at 78% 18%, rgba(0,0,0,.5), transparent 68%);
  pointer-events: none;
}
.hero .wrap { position: relative; }

.hl { position: relative; white-space: nowrap; }
.hl::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: .04em;
  height: .14em;
  background: var(--teal);
  opacity: .38;
  z-index: -1;
}

/* Signature: backwards engagement path */
.pathboard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-2);
  padding: 26px 26px 22px;
}
.pathboard-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.pathboard-head strong {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--navy);
}
.pathboard-head .mono { font-size: .72rem; color: var(--faint); letter-spacing: .08em; }
.path-steps { display: flex; flex-direction: column; }
.path-step {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  align-items: start;
  padding: 11px 10px;
  border-radius: var(--radius);
  transition: background .3s ease;
  position: relative;
}
.path-step .node {
  width: 12px; height: 12px;
  border-radius: 50%;
  border: 2.5px solid var(--faint);
  background: #fff;
  margin: 7px auto 0;
  transition: border-color .3s ease, background .3s ease, box-shadow .3s ease;
  position: relative;
  z-index: 1;
}
.path-step:not(:last-child) .node::after {
  content: "";
  position: absolute;
  left: 50%; top: 14px;
  transform: translateX(-50%);
  width: 2px; height: 46px;
  background: var(--line);
}
.path-step .p-title {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: .98rem;
  color: var(--muted);
  transition: color .3s ease;
}
.path-step .p-sub {
  font-size: .84rem;
  line-height: 1.5;
  color: var(--faint);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .35s ease, opacity .35s ease, margin .35s ease;
}
.path-step.active { background: var(--teal-tint); }
.path-step.active .node { border-color: var(--teal); background: var(--teal); box-shadow: 0 0 0 4px rgba(26,155,140,.18); }
.path-step.active .p-title { color: var(--navy); }
.path-step.active .p-sub { max-height: 70px; opacity: 1; margin-top: 3px; }
.path-step.done .node { border-color: var(--teal); background: #fff; }
.path-step.done .p-title { color: var(--ink); }
.pathboard-foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: .82rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pathboard-foot .sq { width: 8px; height: 8px; background: var(--teal); flex: none; }

/* ---------- Stat band ---------- */

.statband { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.statband .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 34px 28px;
  border-left: 1px solid var(--line);
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b {
  display: block;
  font-family: var(--font-display);
  font-variation-settings: "wdth" 108;
  font-weight: 750;
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  color: var(--navy);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.stat span { font-size: .88rem; color: var(--muted); font-weight: 500; }

/* ---------- Service explorer (tabs) ---------- */

.explorer { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 4vw, 56px); align-items: stretch; }
.explorer-tabs { display: flex; flex-direction: column; border-left: 2px solid var(--line); }
.explorer-tab {
  text-align: left;
  padding: 20px 22px;
  margin-left: -2px;
  border-left: 2px solid transparent;
  transition: border-color .2s ease, background .2s ease;
}
.explorer-tab .t-kicker { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; color: var(--faint); display: block; margin-bottom: 5px; }
.explorer-tab .t-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.18rem;
  color: var(--muted);
  transition: color .2s ease;
}
.explorer-tab:hover .t-title { color: var(--navy); }
.explorer-tab[aria-selected="true"] { border-left-color: var(--teal); background: linear-gradient(90deg, var(--teal-tint), transparent 85%); }
.explorer-tab[aria-selected="true"] .t-title { color: var(--navy); }
.explorer-tab[aria-selected="true"] .t-kicker { color: var(--teal-deep); }

.explorer-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(28px, 3.4vw, 44px);
  box-shadow: var(--shadow-1);
  display: none;
  flex-direction: column;
}
.explorer-panel.active { display: flex; animation: panel-in .35s ease; }
@keyframes panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.explorer-panel h3 { margin-bottom: 14px; font-size: 1.5rem; }
.explorer-panel p { color: var(--muted); }
.explorer-panel .panel-points { margin: 22px 0 26px; display: grid; gap: 10px; }
.explorer-panel .panel-points li {
  display: flex; gap: 12px; align-items: baseline;
  font-size: .96rem; color: var(--ink);
}
.explorer-panel .panel-points li::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--teal);
  flex: none;
  transform: translateY(-1px);
}
.explorer-panel .link-arrow { margin-top: auto; }

/* ---------- Proof rows (why section) ---------- */

.proof-row {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.proof-row:last-child { border-bottom: 1px solid var(--line); }
.proof-ico {
  width: 46px; height: 46px;
  border-radius: var(--radius);
  background: var(--blue-tint);
  color: var(--blue);
  display: grid;
  place-items: center;
}
.proof-row h3 { font-size: 1.12rem; margin-bottom: 6px; }
.proof-row p { color: var(--muted); font-size: .98rem; }

.sticky-col { position: sticky; top: 130px; }

/* ---------- Dark band (.ai) ---------- */

.dark-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin: 44px 0 40px; }
.dark-cards.four { grid-template-columns: repeat(4, 1fr); }
.dark-card {
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  padding: 28px 26px;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.dark-card:hover { border-color: rgba(127,212,200,.5); background: rgba(255,255,255,.03); transform: translateY(-3px); }
.dark-card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.dark-card p { font-size: .94rem; color: rgba(255,255,255,.66); }
.dark-card .k { font-family: var(--font-mono); font-size: .72rem; color: #7fd4c8; letter-spacing: .1em; display: block; margin-bottom: 14px; }

/* ---------- Stack teaser ---------- */

.stack-mini { display: flex; flex-direction: column; gap: 8px; }
.stack-layer {
  display: grid;
  grid-template-columns: 62px 1fr auto;
  gap: 16px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 15px 20px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.stack-layer:hover { transform: translateX(8px); border-color: var(--teal); box-shadow: var(--shadow-1); }
.stack-layer .l-id { font-family: var(--font-mono); font-size: .74rem; color: var(--teal-deep); letter-spacing: .06em; }
.stack-layer .l-name { font-family: var(--font-display); font-weight: 650; color: var(--navy); font-size: .98rem; }
.stack-layer .l-note { font-size: .82rem; color: var(--faint); text-align: right; }

/* ---------- Partner logo carousel (Ammacatize component, token-adapted) ---------- */
.partner-panel {
  --op: .78;
  --d0: 40s; --d1: 34s; --d2: 46s;
  --gap: 52px;
  position: relative;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 34px;
  overflow: hidden;
  margin-top: 40px;
  background: var(--navy);
  padding: 40px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 10%, #000 90%, transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 10%, #000 90%, transparent 100%);
}
.partner-panel .track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: var(--gap);
  will-change: transform;
}
.partner-panel .t0 { animation: marq var(--d0) linear infinite; }
.partner-panel .t1 { animation: marq var(--d1) linear infinite reverse; }
.partner-panel .t2 { animation: marq var(--d2) linear infinite; }
.partner-panel:hover .track { animation-play-state: paused; }
.partner-panel .logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 8px;
  opacity: var(--op);
  transition: opacity .5s ease, transform .5s ease, filter .5s ease;
  flex: none;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.partner-panel .logo img { display: block; height: auto; width: auto; max-width: 150px; }
.partner-panel .logo:hover {
  opacity: 1;
  transform: translateY(-2px);
  filter: drop-shadow(0 0 20px color-mix(in oklab, var(--teal) 55%, transparent));
}
@keyframes marq { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- CTA band ---------- */

.cta-band { background: var(--navy); color: rgba(255,255,255,.8); position: relative; overflow: hidden; }
.cta-band::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
}
.cta-band .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding-top: clamp(56px, 6vw, 84px);
  padding-bottom: clamp(56px, 6vw, 84px);
}
.cta-band h2 { color: #fff; max-width: 620px; }
.cta-band p { margin-top: 12px; max-width: 560px; }

/* ---------- Footer ---------- */

.site-footer { background: var(--navy); color: rgba(255,255,255,.62); font-size: .93rem; border-top: 1px solid var(--line-dark); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding: clamp(52px, 6vw, 76px) 0 44px;
}
.site-footer h4 {
  color: #fff;
  font-size: .82rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 18px;
}
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: rgba(255,255,255,.72); }
.site-footer a:hover { color: #7fd4c8; }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { margin-top: 14px; max-width: 34ch; font-size: .9rem; line-height: 1.65; }
.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
}
.footer-bottom a { color: rgba(255,255,255,.6); }

/* ---------- Page hero (inner pages) ---------- */

.page-hero {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
  padding: clamp(56px, 7vw, 88px) 0;
  position: relative;
  overflow: hidden;
}
.page-hero .display { font-size: clamp(2.2rem, 4.4vw, 3.4rem); max-width: 18ch; }
.page-hero .lead { margin-top: 20px; }
.page-hero .hero-bg-grid {
  mask-image: radial-gradient(ellipse 60% 100% at 88% 30%, rgba(0,0,0,.55), transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 100% at 88% 30%, rgba(0,0,0,.55), transparent 70%);
}

/* ---------- Sub-nav (sticky in-page anchors) ---------- */

.subnav {
  position: sticky;
  top: 76px;
  z-index: 50;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.subnav .wrap {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.subnav .wrap::-webkit-scrollbar { display: none; }
.subnav a {
  flex: none;
  padding: 15px 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .9rem;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.subnav a:hover { color: var(--navy); }
.subnav a.current { color: var(--navy); border-bottom-color: var(--teal); }

/* ---------- Service detail blocks ---------- */

.svc-block { padding: clamp(64px, 8vw, 100px) 0; border-top: 1px solid var(--line); }
.svc-block:first-of-type { border-top: 0; }
.svc-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 5vw, 72px); }
.svc-block.flip .svc-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.svc-block.flip .svc-intro { order: 2; }
.svc-block.flip .svc-features { order: 1; }
.svc-intro .svc-num {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--teal-deep);
  display: block;
  margin-bottom: 16px;
}
.svc-intro h2 { margin-bottom: 14px; }
.svc-intro .svc-tag {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.06rem;
  color: var(--blue);
  margin-bottom: 18px;
  line-height: 1.45;
}
.svc-intro p { color: var(--muted); }
.svc-features { display: grid; gap: 14px; align-content: start; }
.feature-row {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.section-alt .feature-row { background: #fff; }
.feature-row:hover { border-color: var(--teal); box-shadow: var(--shadow-1); transform: translateY(-2px); }
.feature-row h3 { font-size: 1.05rem; margin-bottom: 6px; }
.feature-row p { font-size: .94rem; color: var(--muted); }

/* ---------- Accordion ---------- */

.accordion { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-btn {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
  text-align: left;
  padding: 24px 4px;
  transition: color .2s ease;
}
.acc-btn .a-num {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--teal-deep);
  letter-spacing: .08em;
}
.acc-btn .a-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.06rem, 1.6vw, 1.28rem);
  color: var(--navy);
  letter-spacing: -0.01em;
}
.acc-btn:hover .a-title { color: var(--blue); }
.acc-ico {
  width: 30px; height: 30px;
  border: 1.5px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
  flex: none;
}
.acc-ico svg { transition: transform .3s ease; }
.acc-item.open .acc-ico { background: var(--teal); border-color: var(--teal); }
.acc-item.open .acc-ico svg { transform: rotate(45deg); }
.acc-item.open .acc-ico svg path { stroke: #fff; }
.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s cubic-bezier(.3,.6,.3,1);
}
.acc-body-inner {
  padding: 0 4px 28px;
  color: var(--muted);
  max-width: 66ch;
}
.on-dark .accordion, .on-dark .acc-item { border-color: var(--line-dark); }
.on-dark .acc-btn .a-title { color: #fff; }
.on-dark .acc-body-inner { color: rgba(255,255,255,.66); }

/* ---------- Detail definition rows ---------- */

.def-rows { border-top: 1px solid var(--line); }
.def-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.def-row dt {
  font-family: var(--font-display);
  font-weight: 650;
  color: var(--navy);
  font-size: .96rem;
}
.def-row dd { color: var(--muted); font-size: .98rem; }

/* ---------- Cards (generic flat) ---------- */

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(26px, 3vw, 36px);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--blue); box-shadow: var(--shadow-1); transform: translateY(-3px); }
.card .c-kicker {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--teal-deep);
  display: block;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.card p { color: var(--muted); font-size: .96rem; }

/* ---------- Steps (engagement) ---------- */

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.step {
  padding: 30px 26px;
  border-left: 1px solid var(--line);
  position: relative;
  transition: background .2s ease;
}
.step:first-child { border-left: 0; }
.step:hover { background: var(--bg-alt); }
.step .s-num {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 110;
  font-weight: 800;
  font-size: 2rem;
  color: var(--blue-tint);
  -webkit-text-stroke: 1.5px var(--blue);
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}
.step .s-phase { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em; color: var(--teal-deep); display: block; margin-bottom: 8px; }
.step h3 { font-size: 1.02rem; margin-bottom: 8px; }
.step p { font-size: .88rem; color: var(--muted); }

/* ---------- Failover schematic ---------- */

.flow-schematic {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(28px, 3.4vw, 44px);
  box-shadow: var(--shadow-1);
}
.flow-node {
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.flow-node .fn-label { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em; color: var(--faint); display: block; margin-bottom: 3px; }
.flow-node .fn-name { font-family: var(--font-display); font-weight: 700; color: var(--navy); }
.flow-node .pill {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  padding: 5px 12px;
  border-radius: 99px;
  white-space: nowrap;
}
.flow-node.primary { border-color: var(--teal); background: var(--teal-tint); }
.flow-node.primary .pill { background: var(--teal); color: #fff; }
.flow-node.gateway .pill { background: var(--blue-tint); color: var(--blue); }
.flow-node.standby .pill { background: var(--bg-alt); color: var(--muted); border: 1px solid var(--line); }
.flow-link {
  height: 44px;
  width: 2px;
  margin: 0 auto;
  background: var(--line);
  position: relative;
  overflow: visible;
}
.flow-link .packet {
  position: absolute;
  left: 50%;
  top: -4px;
  transform: translateX(-50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--teal);
  animation: packet-drop 2.4s ease-in-out infinite;
}
.flow-link.l2 .packet { animation-delay: 1.2s; background: var(--blue); }
@keyframes packet-drop {
  0% { top: -4px; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: 40px; opacity: 0; }
}
.flow-note { margin-top: 6px; font-size: .78rem; color: var(--faint); text-align: center; font-family: var(--font-mono); letter-spacing: .04em; }

/* ---------- Forms ---------- */

.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(28px, 3.4vw, 44px);
  box-shadow: var(--shadow-1);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .88rem;
  color: var(--navy);
}
.field label .req { color: var(--teal-deep); }
.field input, .field select, .field textarea {
  font: inherit;
  font-size: .98rem;
  padding: 13px 15px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  transition: border-color .18s ease, box-shadow .18s ease;
  width: 100%;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(26,155,140,.14);
}
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--err); }
.field .err-msg { display: none; font-size: .8rem; color: var(--err); }
.field.invalid .err-msg { display: block; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-foot { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-top: 6px; }
.form-foot small { color: var(--faint); font-size: .82rem; }

.banner {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  border-radius: var(--radius);
  font-size: .94rem;
  margin-bottom: 22px;
}
.banner.ok { background: #eaf6ef; color: var(--ok); border: 1px solid #bfe3cd; }
.banner.err { background: #fbeeed; color: var(--err); border: 1px solid #eccfcc; }

/* ---------- Contact info list ---------- */

.info-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.info-item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.info-item .i-ico {
  width: 42px; height: 42px;
  border-radius: var(--radius);
  background: var(--blue-tint);
  color: var(--blue);
  display: grid;
  place-items: center;
}
.info-item .i-label { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); display: block; margin-bottom: 3px; }
.info-item .i-value { font-family: var(--font-display); font-weight: 650; color: var(--navy); font-size: 1.02rem; }
.info-item .i-value a { color: var(--navy); }
.info-item .i-value a:hover { color: var(--teal-deep); }
.info-item .i-sub { font-size: .86rem; color: var(--muted); margin-top: 2px; }

/* ---------- Alert strip ---------- */

.alert-strip {
  margin-top: 28px;
  background: var(--navy);
  color: rgba(255,255,255,.8);
  border-radius: 8px;
  padding: 24px 26px;
}
.alert-strip strong { color: #fff; font-family: var(--font-display); display: block; margin-bottom: 6px; }
.alert-strip a { color: #7fd4c8; font-weight: 600; }

/* ---------- Support page cards ---------- */

.support-cards { display: grid; grid-template-columns: 7fr 5fr; gap: 28px; align-items: stretch; }
.support-card {
  border-radius: 8px;
  padding: clamp(30px, 3.6vw, 46px);
  display: flex;
  flex-direction: column;
}
.support-card.primary-card {
  background: var(--navy);
  color: rgba(255,255,255,.78);
  position: relative;
  overflow: hidden;
}
.support-card.primary-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
}
.support-card.primary-card h2 { color: #fff; }
.support-card.secondary-card { background: #fff; border: 1px solid var(--line); }
.support-card h2 { font-size: 1.6rem; margin: 14px 0 12px; }
.support-card .big-phone {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 108;
  font-weight: 800;
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  color: #fff;
  letter-spacing: .01em;
  display: inline-block;
  margin: 22px 0 6px;
}
.support-card .big-phone:hover { color: #7fd4c8; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 99px;
  width: max-content;
}
.badge.live { background: rgba(26,155,140,.16); color: #7fd4c8; border: 1px solid rgba(26,155,140,.4); }
.badge.neutral { background: var(--blue-tint); color: var(--blue); }

/* ---------- Tabs (generic, deployment options) ---------- */

.tabbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.tabbar button {
  padding: 12px 22px;
  border: 1.5px solid var(--line);
  border-radius: 99px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .92rem;
  color: var(--muted);
  transition: all .18s ease;
  background: #fff;
}
.tabbar button:hover { border-color: var(--blue); color: var(--navy); }
.tabbar button[aria-selected="true"] { background: var(--navy); border-color: var(--navy); color: #fff; }
.tabpanel { display: none; }
.tabpanel.active { display: block; animation: panel-in .3s ease; }
.tabpanel-inner {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: clamp(26px, 4vw, 52px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(26px, 3.4vw, 42px);
}
.tabpanel-inner h3 { font-size: 1.3rem; margin-bottom: 12px; }
.tabpanel-inner p { color: var(--muted); }
.tabpanel-inner ul { display: grid; gap: 12px; align-content: center; }
.tabpanel-inner ul li { display: flex; gap: 12px; align-items: baseline; font-size: .96rem; }
.tabpanel-inner ul li::before { content: ""; width: 8px; height: 8px; background: var(--teal); flex: none; transform: translateY(-1px); }

/* ---------- Numbered feature list (ops) ---------- */

.ops-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ops-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.ops-item:hover { border-color: var(--teal); transform: translateY(-3px); box-shadow: var(--shadow-1); }
.ops-item .o-num { font-family: var(--font-mono); font-size: .74rem; color: var(--teal-deep); letter-spacing: .1em; display: block; margin-bottom: 12px; }
.ops-item h3 { font-size: 1.02rem; margin-bottom: 8px; }
.ops-item p { font-size: .9rem; color: var(--muted); }

/* ---------- Reduced motion ---------- */

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

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .hero-grid, .explorer, .split-57, .split-75, .svc-grid, .svc-block.flip .svc-grid,
  .support-cards, .tabpanel-inner { grid-template-columns: 1fr; }
  .svc-block.flip .svc-intro { order: 1; }
  .svc-block.flip .svc-features { order: 2; }
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(odd) { border-left: 0; }
  .step:nth-child(n+3) { border-top: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .sticky-col { position: static; }
  .ops-grid, .dark-cards, .dark-cards.four, .cols-3 { grid-template-columns: repeat(2, 1fr); }
  .statband .wrap { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
}

@media (max-width: 1000px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px rgba(13,35,52,.12);
    padding: 12px var(--gutter) 20px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 6px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav-links a::after { display: none; }
  .nav-cta { margin: 16px 0 0; justify-content: center; }
  .utility .u-left { display: none; }
  .utility .wrap { justify-content: center; }
}

@media (max-width: 640px) {
  body { font-size: 1rem; }
  .ops-grid, .dark-cards, .dark-cards.four, .cols-3, .cols-4, .form-grid, .steps { grid-template-columns: 1fr; }
  .step { border-left: 0; }
  .step + .step { border-top: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .def-row { grid-template-columns: 1fr; gap: 4px; }
  .cta-band .wrap { flex-direction: column; align-items: flex-start; }
  .hl { white-space: normal; }
  .hl::after { display: none; }
}

/* ---------- Intro reveal (homepage, once per session) ---------- */

.intro {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--navy);
  display: grid;
  place-items: center;
}
html:not(.js) .intro, .intro.skip { display: none; }

.intro-inner { display: grid; justify-items: center; gap: 14px; padding: 0 24px; }

/* Ammacatize intro animation — component, adapted to site tokens */
.intro {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 1s ease;
  will-change: opacity;
}
.intro.is-hidden { opacity: 0; pointer-events: none; }

.intro__canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: .95; }
.intro__glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(120% 90% at 80% -10%, rgba(var(--constellation), .22), transparent 60%);
}
.intro__center { position: relative; z-index: 2; text-align: center; padding: 0 clamp(20px, 5vw, 64px); }

/* animated wordmark */
.hero-logo { font-size: clamp(44px, 12vw, 150px); display: flex; justify-content: center; cursor: pointer; }
.logo-word {
  display: flex;
  letter-spacing: .01em;
  font-family: var(--font-display);
  font-weight: 700;
  font-variation-settings: "wdth" 112;
  line-height: 1;
  transform-origin: left top;
  will-change: transform, opacity;
}
.logo-word span { display: inline-block; transform-origin: center; position: relative; will-change: transform, opacity; }

/* tagline under the logo */
.intro-tagline {
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.5vw, 15px);
  letter-spacing: .32em;
  color: var(--teal);
  text-transform: uppercase;
  font-weight: 600;
  margin-top: clamp(14px, 2vw, 22px);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.22,.9,.26,1);
}
.intro-tagline .hl { color: var(--teal); }
.intro-tagline.is-shown { opacity: 1; transform: translateY(0); }

/* constellation canvas on dark site sections */
.has-network { position: relative; }
.net-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; opacity: .38; }
.has-network > .wrap { position: relative; z-index: 1; }

/* Hero cascade after the intro lifts */
.js .hero-stage .eyebrow,
.js .hero-stage h1,
.js .hero-stage .lead,
.js .hero-stage .hero-ctas,
.js .hero-stage .pathboard {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s cubic-bezier(.2,.6,.2,1), transform .6s cubic-bezier(.2,.6,.2,1);
}
.js .hero-stage.play .eyebrow  { opacity: 1; transform: none; transition-delay: .05s; }
.js .hero-stage.play h1        { opacity: 1; transform: none; transition-delay: .14s; }
.js .hero-stage.play .lead     { opacity: 1; transform: none; transition-delay: .24s; }
.js .hero-stage.play .hero-ctas{ opacity: 1; transform: none; transition-delay: .34s; }
.js .hero-stage.play .pathboard{ opacity: 1; transform: none; transition-delay: .3s; }

@media (prefers-reduced-motion: reduce) {
  .intro { display: none; }
  .js .hero-stage .eyebrow, .js .hero-stage h1, .js .hero-stage .lead,
  .js .hero-stage .hero-ctas, .js .hero-stage .pathboard { opacity: 1; transform: none; }
}

/* ============================================================
   Colour dynamism — teal→blue aurora wash behind the hero,
   echoed on eyebrow labels and primary CTAs. Uses existing
   tokens only. Respects reduced motion.
   ============================================================ */
.hero-stage { position: relative; overflow: hidden; }

.hero-stage::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(closest-side, var(--teal) 0%, transparent 70%),
    radial-gradient(closest-side, var(--blue) 0%, transparent 70%);
  background-position: 20% 30%, 80% 70%;
  background-repeat: no-repeat;
  background-size: 55% 55%, 55% 55%;
  opacity: .14;
  filter: blur(60px);
  animation: amz-aurora-drift 22s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

.hero-stage > * { position: relative; z-index: 1; }

@keyframes amz-aurora-drift {
  0%   { transform: translate(-6%, -4%) scale(1); }
  50%  { transform: translate(4%, 3%) scale(1.08); }
  100% { transform: translate(-6%, -4%) scale(1); }
}

.eyebrow {
  background: linear-gradient(90deg, var(--teal), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.on-dark .eyebrow {
  background: linear-gradient(90deg, #7fd4c8, var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  background-size: 160% 160%;
  background-position: 0% 50%;
  transition: background-position .5s ease, transform .2s ease;
}
.btn-primary:hover {
  background-position: 100% 50%;
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .hero-stage::before { animation: none; }
}