:root {
  --midnight: #0A1628;
  --midnight-2: #0C1A30;
  --deep-navy: #0F1F3D;
  --steel-blue: #1E3A5F;
  --steel-soft: rgba(30, 58, 95, 0.55);
  --signal-amber: #F5A623;
  --amber-soft: rgba(245, 166, 35, 0.14);
  --amber-glow: rgba(245, 166, 35, 0.22);
  --burnt-amber: #B8741A;
  --cream: #FBF8F1;
  --frost: #EDF1F7;
  --muted: #8B95A7;
  --dim: #5A6478;

  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --max-width: 1360px;
  --gutter: 2.5rem;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --t-fast: 180ms;
  --t-base: 280ms;
  --t-slow: 600ms;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--midnight);
  color: var(--frost);
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a {
  color: var(--signal-amber);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--burnt-amber); }
a:focus-visible {
  outline: 2px solid var(--signal-amber);
  outline-offset: 3px;
  border-radius: 2px;
}

p { margin: 0 0 1rem 0; color: var(--frost); }

hr.rule {
  border: none;
  border-top: 0.5px solid var(--steel-blue);
  margin: 0;
}

hr.amber-rule {
  border: none;
  border-top: 1px solid var(--signal-amber);
  width: 120px;
  margin: 0 auto;
  box-shadow: 0 0 16px var(--amber-glow);
}

.wordmark {
  font-family: var(--font-sans);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.wordmark .accent { color: var(--signal-amber); font-weight: 300; }
.wordmark .middle { color: var(--frost); font-weight: 300; }

.label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
}

/* HEADER */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 22, 40, 0.72);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 0.5px solid var(--steel-soft);
  transition: background-color var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease);
}
header.site-header.scrolled {
  background-color: rgba(10, 22, 40, 0.92);
  border-bottom-color: var(--steel-blue);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
}

/* Hamburger button (mobile only) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 0.5px solid var(--steel-blue);
  cursor: pointer;
  color: var(--frost);
  transition: border-color var(--t-fast) var(--ease);
}
.nav-toggle:hover { border-color: var(--signal-amber); }
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--frost);
  margin: 2.5px 0;
  transition: transform var(--t-fast) var(--ease),
              opacity var(--t-fast) var(--ease);
}
.header-inner.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
.header-inner.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}
.header-inner.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: opacity var(--t-fast) var(--ease);
}
.brand:hover { opacity: 0.85; }
.sigma {
  width: 40px;
  height: 40px;
  display: block;
}
.brand .wordmark {
  font-size: 1.15rem;
}

nav.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2.25rem;
}
nav.site-nav a {
  position: relative;
  color: var(--muted);
  font-size: 0.98rem;
  letter-spacing: 0.05em;
  padding-bottom: 5px;
  transition: color var(--t-fast) var(--ease);
}
nav.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--signal-amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-base) var(--ease);
}
nav.site-nav a:hover { color: var(--frost); }
nav.site-nav a:hover::after { transform: scaleX(1); }

/* Dropdown */
nav.site-nav .has-dropdown { position: relative; }
nav.site-nav .has-dropdown > .top {
  cursor: default;
}
nav.site-nav .has-dropdown > .top::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 0.45rem;
  margin-right: 0.15rem;
  vertical-align: middle;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.65;
  transform: translateY(-1px);
  transition: transform var(--t-fast) var(--ease);
}
nav.site-nav .has-dropdown:hover > .top::before,
nav.site-nav .has-dropdown:focus-within > .top::before {
  transform: translateY(-1px) rotate(180deg);
}
nav.site-nav .dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: -1.25rem;
  min-width: 280px;
  background-color: rgba(15, 31, 61, 0.96);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border: 0.5px solid var(--steel-blue);
  border-top: 1px solid var(--signal-amber);
  padding: 0.5rem 0;
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--t-base) var(--ease),
              transform var(--t-base) var(--ease),
              visibility var(--t-base) var(--ease);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  z-index: 200;
}
nav.site-nav .has-dropdown:hover .dropdown,
nav.site-nav .has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
nav.site-nav .dropdown li { display: block; }
nav.site-nav .dropdown a {
  display: block;
  padding: 0.8rem 1.25rem 0.85rem 1.25rem;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--frost);
  border-left: 2px solid transparent;
  transition: background-color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease);
}
nav.site-nav .dropdown a::after { display: none; }
nav.site-nav .dropdown a:hover,
nav.site-nav .dropdown a:focus-visible {
  background-color: rgba(245, 166, 35, 0.08);
  border-left-color: var(--signal-amber);
  color: var(--cream);
}
nav.site-nav .dropdown .item-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.15rem;
}
nav.site-nav .dropdown a:hover .item-label,
nav.site-nav .dropdown a:focus-visible .item-label {
  color: var(--signal-amber);
}

/* MAIN LAYOUT */
main { display: block; position: relative; }

section {
  padding: 6rem var(--gutter);
  position: relative;
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
}
.section-head hr { flex: 1; }
.section-head .label { white-space: nowrap; }

h2.section-title {
  font-weight: 300;
  font-size: clamp(2rem, 3.4vw, 3rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 2.5rem 0;
  color: var(--frost);
  max-width: 38ch;
}

/* HERO */
.hero {
  position: relative;
  min-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem var(--gutter);
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20%;
  z-index: -2;
  background:
    radial-gradient(60% 50% at 50% 40%, rgba(245, 166, 35, 0.10), transparent 70%),
    radial-gradient(40% 35% at 20% 80%, rgba(30, 58, 95, 0.55), transparent 75%),
    radial-gradient(45% 35% at 85% 20%, rgba(30, 58, 95, 0.45), transparent 75%);
  filter: blur(2px);
  animation: heroDrift 22s ease-in-out infinite alternate;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(237, 241, 247, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(237, 241, 247, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
  pointer-events: none;
}

@keyframes heroDrift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-2%, 1.5%, 0) scale(1.05); }
}

.hero .wordmark.hero-mark {
  font-size: clamp(3rem, 11vw, 8rem);
  line-height: 1;
  margin: 2rem 0 2rem 0;
  display: inline-block;
  text-shadow: 0 0 60px rgba(245, 166, 35, 0.18);
}
.hero-lockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin: 2rem 0;
}
.hero-lockup .hero-mark { margin: 0; }
.hero-lockup .sigma.hero-sigma {
  width: clamp(7rem, 16vw, 12rem);
  height: clamp(7rem, 16vw, 12rem);
  filter: drop-shadow(0 0 18px var(--amber-glow));
  animation: sigmaPulse 6s ease-in-out infinite;
}
@keyframes sigmaPulse {
  0%, 100% { filter: drop-shadow(0 0 12px rgba(245, 166, 35, 0.18)); }
  50%      { filter: drop-shadow(0 0 22px rgba(245, 166, 35, 0.32)); }
}
.hero .tagline {
  font-weight: 300;
  color: var(--frost);
  font-size: clamp(1.25rem, 1.9vw, 1.65rem);
  letter-spacing: 0.02em;
  margin: 0 0 1.5rem 0;
}
.hero .value-prop {
  color: var(--muted);
  max-width: 60ch;
  margin: 0 auto 2.5rem auto;
  font-size: clamp(1.05rem, 1.2vw, 1.2rem);
  line-height: 1.55;
}

/* SERVICES */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 0.5px solid var(--steel-blue);
}
.service {
  position: relative;
  display: block;
  padding: 3rem 1.5rem 3rem 1.5rem;
  margin: 0 -1.5rem;
  border-bottom: 0.5px solid var(--steel-blue);
  color: inherit;
  text-decoration: none;
  transition: background-color var(--t-base) var(--ease),
              transform var(--t-base) var(--ease);
}
.service-link {
  display: inline-block;
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal-amber);
  transition: letter-spacing var(--t-base) var(--ease);
}
.service:hover .service-link {
  letter-spacing: 0.14em;
}
.service::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 0;
  background: var(--signal-amber);
  transform: translateY(-50%);
  transition: height var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}
.service:hover {
  background-color: rgba(15, 31, 61, 0.35);
}
.service:hover::before {
  height: 70%;
  box-shadow: 0 0 14px var(--amber-glow);
}
.service:hover h3 { color: var(--cream); }
.service:hover .label { color: var(--signal-amber); }
.service .label {
  display: block;
  margin-bottom: 0.85rem;
  transition: color var(--t-base) var(--ease);
  font-size: 0.78rem;
}
.service h3 {
  font-weight: 300;
  font-size: clamp(1.5rem, 1.9vw, 1.85rem);
  color: var(--frost);
  margin: 0 0 1rem 0;
  letter-spacing: 0.005em;
  transition: color var(--t-base) var(--ease);
}
.service p {
  color: var(--muted);
  margin: 0;
  max-width: 56ch;
  font-size: 1.05rem;
  line-height: 1.65;
}

/* APPROACH */
.approach-body {
  max-width: 64ch;
  font-size: clamp(1.15rem, 1.4vw, 1.35rem);
  line-height: 1.7;
  color: var(--frost);
}
.approach-body p + p { margin-top: 1.25rem; }

.approach-body p:first-child {
  position: relative;
  padding-left: 1.25rem;
  border-left: 1px solid var(--steel-blue);
}
.approach-body p:first-child::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  width: 1px;
  height: 1.6em;
  background: var(--signal-amber);
  box-shadow: 0 0 10px var(--amber-glow);
}

/* ABOUT */
.about-body {
  max-width: 62ch;
  color: var(--frost);
}
.credentials {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0 0;
  border-top: 0.5px solid var(--steel-blue);
}
.credentials li {
  position: relative;
  padding: 0.95rem 0 0.95rem 0.85rem;
  border-bottom: 0.5px solid var(--steel-blue);
  display: flex;
  gap: 1.5rem;
  align-items: baseline;
  transition: padding-left var(--t-base) var(--ease),
              background-color var(--t-base) var(--ease);
}
.credentials li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--signal-amber);
  transform: translateY(-50%) scale(0);
  transition: transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}
.credentials li:hover {
  padding-left: 1.25rem;
}
.credentials li:hover::before {
  transform: translateY(-50%) scale(1);
  box-shadow: 0 0 8px var(--amber-glow);
}
.credentials .label { flex-shrink: 0; min-width: 7rem; }
.credentials .value { color: var(--frost); }

/* CONTACT */
.contact-body { max-width: 62ch; }
.contact-row {
  display: flex;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 0.5px solid var(--steel-blue);
  transition: padding-left var(--t-base) var(--ease);
}
.contact-row:first-of-type { border-top: 0.5px solid var(--steel-blue); }
.contact-row .label { min-width: 7rem; }
.contact-row .value, .contact-row a { color: var(--frost); }
.contact-row a {
  position: relative;
  display: inline-block;
}
.contact-row a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--signal-amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-base) var(--ease);
}
.contact-row a:hover { color: var(--signal-amber); }
.contact-row a:hover::after { transform: scaleX(1); }

/* FOOTER */
footer.site-footer {
  padding: 3rem var(--gutter);
  border-top: 0.5px solid var(--steel-blue);
  background:
    linear-gradient(to bottom, transparent, rgba(15, 31, 61, 0.35));
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-inner .sigma { width: 22px; height: 22px; }
.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
}
.footer-copy {
  font-size: 0.78rem;
  color: var(--dim);
}
.footer-legal {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-legal a {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}
.footer-legal a:hover { color: var(--frost); }

/* LEGAL PAGES */
.legal {
  padding: 8rem var(--gutter) 6rem var(--gutter);
}
.legal-inner {
  max-width: 760px;
  margin: 0 auto;
}
.legal h1 {
  font-weight: 300;
  font-size: clamp(2.25rem, 3.6vw, 3.25rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0.75rem 0 0.5rem 0;
  color: var(--frost);
}
.legal .effective {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 3rem;
}
.legal h2 {
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--signal-amber);
  margin: 3rem 0 1rem 0;
  padding-top: 2.5rem;
  border-top: 0.5px solid var(--steel-blue);
}
.legal h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 2rem;
}
.legal h3 {
  font-weight: 500;
  font-size: 1rem;
  color: var(--frost);
  margin: 2rem 0 0.75rem 0;
  letter-spacing: 0.01em;
}
.legal p, .legal li {
  color: var(--frost);
  font-size: 1.05rem;
  line-height: 1.75;
}
.legal p { margin: 0 0 1.25rem 0; max-width: 68ch; }
.legal ul, .legal ol {
  padding-left: 1.5rem;
  margin: 0 0 1.5rem 0;
}
.legal li { margin-bottom: 0.5rem; }
.legal li::marker { color: var(--signal-amber); }
.legal strong { font-weight: 500; color: var(--cream); }
.legal a { border-bottom: 1px solid transparent; transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease); }
.legal a:hover { border-bottom-color: var(--signal-amber); }
.legal .back {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}
.legal .back:hover { color: var(--signal-amber); }
.legal .contact-block {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 0.5px solid var(--steel-blue);
}
.legal .contact-block p { margin-bottom: 0.5rem; }

/* ABOUT PAGE */
.about-page main { display: block; }

.about-hero {
  padding: 9rem var(--gutter) 4rem var(--gutter);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(45% 60% at 80% 10%, rgba(245, 166, 35, 0.08), transparent 70%),
    radial-gradient(35% 50% at 10% 90%, rgba(30, 58, 95, 0.5), transparent 75%);
  pointer-events: none;
}
.about-hero-inner {
  max-width: 920px;
  margin: 0 auto;
}
.about-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 1.5rem;
}
.about-hero .breadcrumb a { color: var(--dim); }
.about-hero .breadcrumb a:hover { color: var(--signal-amber); }
.about-hero .breadcrumb .sep { margin: 0 0.65rem; color: var(--steel-blue); }
.about-hero .role-line {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal-amber);
  margin-bottom: 1.25rem;
}
.about-hero h1 {
  font-weight: 300;
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem 0;
  color: var(--frost);
  max-width: 16ch;
}
.about-hero .lede {
  max-width: 64ch;
  color: var(--muted);
  font-size: clamp(1.1rem, 1.3vw, 1.3rem);
  line-height: 1.6;
}

.about-section {
  padding: 5rem var(--gutter);
}
.about-section-inner {
  max-width: 920px;
  margin: 0 auto;
}
.about-section .section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 1.5rem;
}
.about-section h2 {
  font-weight: 300;
  font-size: clamp(1.75rem, 2.6vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0 0 2rem 0;
  color: var(--frost);
  max-width: 28ch;
}
.about-section .body p {
  color: var(--frost);
  font-size: 1.1rem;
  line-height: 1.75;
  margin: 0 0 1.4rem 0;
  max-width: 66ch;
}
.about-section .body p strong { color: var(--cream); font-weight: 500; }
.about-section + .about-section {
  border-top: 0.5px solid var(--steel-blue);
}

/* Two-column principles */
.principles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}
.principle {
  padding: 1.75rem 1.5rem;
  border-left: 2px solid var(--steel-blue);
  background-color: rgba(15, 31, 61, 0.3);
  transition: border-left-color var(--t-base) var(--ease),
              background-color var(--t-base) var(--ease);
}
.principle:hover {
  border-left-color: var(--signal-amber);
  background-color: rgba(15, 31, 61, 0.5);
}
.principle .principle-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--signal-amber);
  display: block;
  margin-bottom: 0.6rem;
}
.principle h3 {
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--frost);
  margin: 0 0 0.65rem 0;
  letter-spacing: 0.01em;
}
.principle p {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.6;
  margin: 0;
}
@media (min-width: 768px) {
  .principles { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .about-hero { padding: 6rem 1.25rem 3rem 1.25rem; }
  .about-section { padding: 3.5rem 1.25rem; }
  .principles { gap: 1rem; }
  .principle { padding: 1.25rem 1rem; }
}

/* SERVICE PAGES */
.service-page main { display: block; }

.service-hero {
  padding: 9rem var(--gutter) 5rem var(--gutter);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.service-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(45% 60% at 80% 10%, rgba(245, 166, 35, 0.08), transparent 70%),
    radial-gradient(35% 50% at 10% 90%, rgba(30, 58, 95, 0.5), transparent 75%);
  pointer-events: none;
}
.service-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.service-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 1.5rem;
}
.service-hero .breadcrumb a { color: var(--dim); }
.service-hero .breadcrumb a:hover { color: var(--signal-amber); }
.service-hero .breadcrumb .sep { margin: 0 0.65rem; color: var(--steel-blue); }
.service-hero h1 {
  font-weight: 300;
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem 0;
  color: var(--frost);
  max-width: 22ch;
}
.service-hero .lede {
  max-width: 64ch;
  color: var(--muted);
  font-size: clamp(1.1rem, 1.3vw, 1.3rem);
  line-height: 1.6;
}

.service-section {
  padding: 5rem var(--gutter);
}
.service-section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.service-section .label {
  display: block;
  margin-bottom: 1.5rem;
}
.service-section h2 {
  font-weight: 300;
  font-size: clamp(1.75rem, 2.8vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0 0 2.5rem 0;
  color: var(--frost);
  max-width: 38ch;
}

/* OFFERS */
.offers {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.offer {
  position: relative;
  padding: 2.5rem 2rem;
  background-color: rgba(15, 31, 61, 0.35);
  border: 0.5px solid var(--steel-blue);
  border-left: 2px solid var(--steel-blue);
  transition: border-left-color var(--t-base) var(--ease),
              background-color var(--t-base) var(--ease),
              transform var(--t-base) var(--ease);
}
.offer:hover {
  border-left-color: var(--signal-amber);
  background-color: rgba(15, 31, 61, 0.55);
}
.offer.featured {
  border-left-color: var(--signal-amber);
  border-left-width: 3px;
  background-color: rgba(245, 166, 35, 0.04);
  box-shadow: 0 0 32px rgba(245, 166, 35, 0.08);
}
.offer .offer-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal-amber);
  margin-bottom: 1rem;
  padding: 0.25rem 0.6rem;
  border: 0.5px solid var(--signal-amber);
}
.offer h3 {
  font-weight: 300;
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  line-height: 1.2;
  color: var(--frost);
  margin: 0 0 0.85rem 0;
  letter-spacing: -0.005em;
}
.offer .summary {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
  margin: 0 0 1.5rem 0;
  max-width: 64ch;
}
.offer .deliverables {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 1.5rem 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.45rem;
}
.offer .deliverables li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--frost);
  font-size: 0.98rem;
  line-height: 1.55;
}
.offer .deliverables li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.6rem;
  height: 1px;
  background: var(--signal-amber);
}
.offer .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 0.5px solid var(--steel-blue);
}
.offer .meta-item .meta-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.25rem;
}
.offer .meta-item .meta-value {
  color: var(--frost);
  font-size: 0.95rem;
}

/* PHASES (for the AI Rapid Adoption Framework) */
.phases {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 0.5px solid var(--steel-blue);
  margin-top: 1.5rem;
}
.phase {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  padding: 2rem 0;
  border-bottom: 0.5px solid var(--steel-blue);
}
.phase-number {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--signal-amber);
  letter-spacing: 0.08em;
}
.phase h4 {
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--frost);
  margin: 0 0 0.5rem 0;
  letter-spacing: 0.01em;
}
.phase .phase-week {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.75rem;
}
.phase p {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.6;
  margin: 0;
  max-width: 60ch;
}

/* RELATED + CTA */
.cta-band {
  padding: 5rem var(--gutter);
  text-align: center;
  border-top: 0.5px solid var(--steel-blue);
}
.cta-band h2 {
  font-weight: 300;
  font-size: clamp(1.75rem, 2.6vw, 2.25rem);
  margin: 0 auto 1.25rem auto;
  max-width: 28ch;
  color: var(--frost);
}
.cta-band p {
  color: var(--muted);
  max-width: 52ch;
  margin: 0 auto 2rem auto;
}
.cta-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 1.5rem;
  border: 0.5px solid var(--signal-amber);
  color: var(--signal-amber);
  transition: background-color var(--t-base) var(--ease),
              color var(--t-base) var(--ease);
}
.cta-link:hover {
  background-color: var(--signal-amber);
  color: var(--midnight);
}

.related-services {
  padding: 4rem var(--gutter) 5rem var(--gutter);
}
.related-services-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.related-services .label { display: block; margin-bottom: 1.5rem; }
.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 0.5px solid var(--steel-blue);
}
.related-grid a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 0.5px solid var(--steel-blue);
  color: var(--frost);
  transition: color var(--t-fast) var(--ease), padding-left var(--t-base) var(--ease);
}
.related-grid a:hover {
  color: var(--signal-amber);
  padding-left: 0.5rem;
}
.related-grid .related-title { font-size: 1.1rem; font-weight: 300; }
.related-grid .related-arrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--dim);
}
.related-grid a:hover .related-arrow { color: var(--signal-amber); }

@media (min-width: 768px) {
  .phase {
    grid-template-columns: 120px 1fr;
    gap: 3rem;
    padding: 2.5rem 0;
  }
}
@media (max-width: 600px) {
  .service-hero { padding: 5.5rem 1.25rem 3rem 1.25rem; }
  .service-section { padding: 3.5rem 1.25rem; }
  .phase { grid-template-columns: 1fr; gap: 0.25rem; padding: 1.5rem 0; }
  .cta-band { padding: 3.5rem 1.25rem; }
  .related-services { padding: 3rem 1.25rem 4rem 1.25rem; }
}

/* SCROLL REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--t-slow) var(--ease),
              transform var(--t-slow) var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }

/* RESPONSIVE */
@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0 4rem;
  }
  .service { padding: 3rem 1.5rem; }
}

@media (min-width: 1024px) {
  section { padding: 8rem var(--gutter); }
  .hero { padding: 10rem var(--gutter); }
}

@media (min-width: 1600px) {
  :root { --gutter: 3rem; }
  section { padding: 9rem var(--gutter); }
}

/* Hamburger transition starts here (tablet and below) */
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .header-inner { padding: 1.1rem 1.25rem; }
  .brand .sigma { width: 32px; height: 32px; }
  .brand .wordmark { font-size: 1rem; }

  nav.site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(10, 22, 40, 0.97);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 0.5px solid var(--steel-blue);
    padding: 1.25rem 1.25rem 1.75rem 1.25rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--t-base) var(--ease),
                transform var(--t-base) var(--ease),
                visibility var(--t-base) var(--ease);
    max-height: calc(100vh - 100%);
    overflow-y: auto;
  }
  .header-inner.nav-open nav.site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  nav.site-nav ul {
    flex-direction: column;
    gap: 0;
    align-items: stretch;
  }
  nav.site-nav > ul > li > a,
  nav.site-nav > ul > li > .top {
    display: block;
    padding: 0.9rem 0;
    font-size: 1.05rem;
    color: var(--frost);
    border-bottom: 0.5px solid var(--steel-blue);
    letter-spacing: 0.03em;
  }
  nav.site-nav a::after { display: none; }
  nav.site-nav .has-dropdown > .top::before { display: none; }
  nav.site-nav .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    border: none;
    border-top: none;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 0.5rem 0 0.85rem 1.25rem;
    margin: 0;
    min-width: 0;
  }
  nav.site-nav .dropdown a {
    padding: 0.55rem 0;
    font-size: 0.95rem;
    color: var(--muted);
    border: none;
  }
  nav.site-nav .dropdown a:hover,
  nav.site-nav .dropdown a:focus-visible {
    background: transparent;
    border-left: none;
    color: var(--signal-amber);
  }
  nav.site-nav .dropdown .item-label {
    display: inline-block;
    margin-right: 0.5rem;
    margin-bottom: 0;
  }
}

@media (max-width: 600px) {
  section { padding: 4.5rem 1.25rem; }
  .hero { padding: 5.5rem 1.25rem; min-height: calc(100vh - 56px); }
  .hero-lockup .sigma.hero-sigma { width: 5.5rem; height: 5.5rem; }
  .hero .wordmark.hero-mark { font-size: clamp(2.5rem, 13vw, 4rem); }
  .hero .tagline { font-size: 1.1rem; }
  .hero .value-prop { font-size: 1rem; }
  .credentials li, .contact-row { flex-direction: column; gap: 0.25rem; }
  .credentials .label, .contact-row .label { min-width: 0; }
  .service { margin: 0; padding: 2.25rem 0; }
  .service::before { left: -0.5rem; }
  .legal { padding: 5rem 1.25rem 4rem 1.25rem; }
  .service-hero h1 { font-size: clamp(2rem, 8vw, 2.75rem); }
  .about-hero h1 { font-size: clamp(2rem, 8vw, 2.75rem); }
  .offer { padding: 1.5rem 1.1rem; }
  .offer h3 { font-size: 1.35rem; }
  .offer .meta { gap: 1rem; flex-direction: column; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
}

::selection { background: var(--signal-amber); color: var(--midnight); }

.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero::before { animation: none; }
  .hero-lockup .sigma.hero-sigma { animation: none; }
}