/* =========================================================
   Sudoboat website — shared design system
   ========================================================= */

:root {
  /* Palette */
  --brand: #1A5BFF;
  --brand-700: #0A3DCC;
  --brand-900: #051A66;
  --sky: #6FA0FF;
  --sky-50: #EFF4FF;
  --sky-100: #DCE6FF;
  --sky-200: #BFD0FF;

  --ink: #0A1838;
  --ink-soft: #2A3658;
  --muted: #5C6B8C;
  --muted-2: #8290B0;
  --line: #D8E0F2;
  --line-soft: #ECF0FA;

  --surface: #FFFFFF;
  --surface-tint: #F5F8FF;
  --paper: #FAFBFE;

  /* Type scale (16px base) */
  --t-eyebrow: 13px;
  --t-body:    17px;
  --t-lead:    20px;
  --t-h4:      22px;
  --t-h3:      28px;
  --t-h2:      48px;
  --t-h1:      76px;
  --t-display: 120px;

  /* Layout */
  --max-w: 1440px;
  --gutter: 56px;
  --nav-h: 72px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Manrope', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

img { display: block; max-width: 100%; }

::selection { background: var(--brand); color: white; }

/* ---------- Type ---------- */
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--t-eyebrow);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 500;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
}

h1, h2, h3, h4 {
  font-family: 'Sora', sans-serif;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.025em;
  font-weight: 600;
  line-height: 1.04;
  text-wrap: balance;
}

p { margin: 0; line-height: 1.55; }

.h1 { font-size: clamp(48px, 7.5vw, var(--t-h1)); font-weight: 500; letter-spacing: -0.035em; }
.h2 { font-size: clamp(36px, 4.5vw, var(--t-h2)); font-weight: 500; letter-spacing: -0.03em; }
.h3 { font-size: var(--t-h3); font-weight: 600; letter-spacing: -0.02em; }
.h4 { font-size: var(--t-h4); font-weight: 600; letter-spacing: -0.015em; }

.lead {
  font-size: var(--t-lead);
  line-height: 1.45;
  color: var(--ink-soft);
  font-weight: 400;
  text-wrap: pretty;
  max-width: 64ch;
}

.body { font-size: var(--t-body); color: var(--ink-soft); }
.caption { font-size: 14px; color: var(--muted); }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section { padding: 140px 0; position: relative; }
.section.tight { padding: 96px 0; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

.row { display: flex; align-items: center; gap: 16px; }
.col { display: flex; flex-direction: column; }

.divider {
  height: 1px;
  background: var(--line);
  border: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: 'Manrope', sans-serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.005em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 220ms var(--ease);
  white-space: nowrap;
  text-decoration: none;
}
.btn .arrow { transition: transform 220ms var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary {
  background: var(--ink);
  color: white;
}
.btn-primary:hover { background: var(--brand); }

.btn-brand {
  background: var(--brand);
  color: white;
  box-shadow: 0 8px 24px rgba(26,91,255,0.28);
}
.btn-brand:hover { background: var(--brand-700); box-shadow: 0 12px 32px rgba(26,91,255,0.36); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--ink); }

.btn-link {
  padding: 0;
  background: transparent;
  color: var(--brand);
  font-weight: 600;
}

/* ---------- Nav ---------- */
.nav-shell {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 240ms var(--ease), border-color 240ms var(--ease), backdrop-filter 240ms var(--ease);
}
.nav-shell.is-scrolled,
.nav-shell.is-solid {
  background: rgba(250,251,254,0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line);
}
.nav-inner {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-brand img { height: 28px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a, .nav-links button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}
.nav-links a:hover, .nav-links button:hover { background: var(--sky-50); color: var(--brand); }
.nav-links a.is-active { color: var(--brand); }
.nav-links .caret {
  width: 10px; height: 10px;
  fill: currentColor;
  opacity: 0.55;
}

/* Mega menu */
.mega {
  position: absolute;
  top: calc(var(--nav-h) - 4px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  width: min(900px, 92vw);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 60px -20px rgba(5,26,102,0.18), 0 8px 24px rgba(5,26,102,0.06);
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 1fr;
  gap: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms var(--ease), transform 200ms var(--ease);
  z-index: 80;
}
.has-mega { position: relative; }
.has-mega:hover .mega,
.has-mega:focus-within .mega {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.mega a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--ink);
  transition: background 160ms var(--ease);
  min-height: 84px;
  justify-content: flex-start;
}
.mega a:hover { background: var(--sky-50); }
.mega a strong {
  font-family: 'Sora', sans-serif;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--ink);
  line-height: 1.25;
}
.mega a span { font-size: 12.5px; color: var(--muted); line-height: 1.4; }

/* ---------- Footer ---------- */
footer.site-foot {
  background: #060E2A;
  color: #B7C2E0;
  padding: 100px 0 56px;
  position: relative;
  overflow: hidden;
}
footer.site-foot .container { position: relative; z-index: 2; }
footer.site-foot::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 400px at 80% 10%, rgba(26,91,255,0.22), transparent 60%),
    radial-gradient(ellipse 600px 300px at 5% 80%, rgba(26,91,255,0.12), transparent 70%);
  pointer-events: none;
}
.foot-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 64px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.foot-brand img { height: 30px; filter: brightness(0) invert(1); margin-bottom: 16px; }
.foot-brand p { color: #8C9BBE; font-size: 14px; max-width: 28ch; }
.foot-col h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #6F7CA5;
  margin: 0 0 18px;
  font-weight: 500;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.foot-col a { font-size: 14px; color: #B7C2E0; transition: color 160ms var(--ease); }
.foot-col a:hover { color: white; }

.foot-bot {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 8px;
}
.foot-bot .office h6 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #6F7CA5;
  margin: 0 0 8px;
  font-weight: 500;
}
.foot-bot .office p { font-size: 13.5px; color: #B7C2E0; line-height: 1.55; }
.foot-legal {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
  color: #6F7CA5;
  gap: 16px;
  flex-wrap: wrap;
}
.foot-legal a { color: #8C9BBE; margin-left: 20px; }
.foot-legal a:hover { color: white; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.reveal-stagger > * { transition-delay: calc(var(--i, 0) * 70ms); }

/* ---------- Hero common ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: calc(var(--nav-h) + 60px);
  padding-bottom: 120px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Section ID — top-right of section, mono */
.sec-id {
  position: absolute;
  top: 32px;
  right: var(--gutter);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
}

/* Tag pill */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.pill .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(26,91,255,0.18);
  animation: pulseDot 2.2s var(--ease) infinite;
}
@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 4px rgba(26,91,255,0.18); }
  50% { box-shadow: 0 0 0 8px rgba(26,91,255,0); }
}

/* Card */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease), box-shadow 220ms var(--ease);
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: var(--ink);
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -20px rgba(5,26,102,0.18);
}
.card .card-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
}

/* Big metric block */
.metric .num {
  font-family: 'Sora', sans-serif;
  font-size: 64px;
  font-weight: 500;
  color: var(--brand);
  line-height: 1;
  letter-spacing: -0.035em;
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}
.metric .suffix { font-size: 36px; color: var(--brand); font-weight: 500; }
.metric .lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 18px;
}

/* Section header */
.sec-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 64px;
}
.sec-head.center {
  grid-template-columns: 1fr;
  justify-items: center;
  text-align: center;
  margin-bottom: 80px;
}
.sec-head .eyebrow { margin-bottom: 18px; display: block; }
.sec-head .h2 { max-width: 14ch; }
.sec-head.center .h2 { max-width: 22ch; }

/* SVG placeholder (striped) */
.svg-slot {
  background-color: var(--sky-50);
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0 14px,
    rgba(26,91,255,0.08) 14px 16px
  );
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-align: center;
  padding: 24px;
}

/* Logo strip — even grid so wrapped rows stay balanced
   regardless of logo count. */
.logo-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  justify-items: center;
  gap: 36px 48px;
}
.logo-strip img {
  height: 32px;
  width: auto;
  max-width: 100%;
  opacity: 0.55;
  filter: grayscale(100%) brightness(0.6);
  transition: opacity 220ms var(--ease), filter 220ms var(--ease);
}
.logo-strip img:hover { opacity: 1; filter: none; }

/* Dark band */
.dark {
  background: #060E2A;
  color: #DCE6FF;
  position: relative;
  overflow: hidden;
}
.dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 1100px 600px at 80% 0%, rgba(26,91,255,0.25), transparent 60%),
    radial-gradient(ellipse 800px 400px at 10% 100%, rgba(26,91,255,0.12), transparent 60%);
  pointer-events: none;
}
.dark .container { position: relative; z-index: 2; }
.dark h1, .dark h2, .dark h3, .dark h4 { color: white; }
.dark .lead, .dark .body { color: #B7C2E0; }
.dark .eyebrow { color: var(--sky); }
.dark .muted { color: #6F7CA5; }

/* Top banner / utility bar — fixed above the nav */
.utility-bar {
  background: var(--brand);
  color: white;
  font-size: 13px;
  text-align: center;
  padding: 10px var(--gutter);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 70;
  font-family: 'Manrope', sans-serif;
}
.utility-bar a {
  text-decoration: none;
  font-weight: 600;
  color: white;
  border-bottom: 1px solid rgba(255,255,255,0.5);
  margin-left: 8px;
}
.utility-bar .mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-right: 16px;
  opacity: 0.7;
}
.with-utility { padding-top: 36px; }
.with-utility .nav-shell { top: 36px; }

/* Bg layers */
.mesh-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 600px at 78% 18%, rgba(26,91,255,0.15), transparent 60%),
    radial-gradient(ellipse 700px 500px at 12% 85%, rgba(26,91,255,0.08), transparent 60%),
    linear-gradient(180deg, #FAFBFE 0%, #FFFFFF 60%, #F0F4FF 100%);
}
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,91,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,91,255,0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 1200px 800px at 50% 40%, black, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 1200px 800px at 50% 40%, black, transparent 80%);
}

/* Float anim */
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes drift {
  0% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(20px, -10px, 0); }
  100% { transform: translate3d(0, 0, 0); }
}
@keyframes sweepIn {
  from { stroke-dashoffset: 1200; }
  to { stroke-dashoffset: 0; }
}
@keyframes radarRotate {
  to { transform: rotate(360deg); }
}
@keyframes blink {
  0%, 70%, 100% { opacity: 1; }
  35% { opacity: 0.2; }
}
@keyframes wave {
  0%, 100% { height: 12%; }
  50%      { height: 78%; }
}

/* =========================================================
   SHARED PAGE TEMPLATES
   Used by capability / industry / solution / utility detail pages
   ========================================================= */

/* Detail-page hero */
.det-hero {
  position: relative;
  min-height: 80vh;
  padding-top: calc(var(--nav-h) + 100px);
  padding-bottom: 100px;
  overflow: hidden;
}
.det-hero .container {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.det-hero.center .container {
  grid-template-columns: 1fr;
  text-align: center;
  justify-items: center;
  max-width: 1100px;
}
.det-hero .crumbs {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 40px;
}
.det-hero .crumbs a { color: var(--muted); }
.det-hero .crumbs span { color: var(--brand); margin-left: 8px; }
.det-hero h1 {
  font-size: clamp(48px, 6.5vw, 96px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1;
  margin: 18px 0 24px;
}
.det-hero h1 em {
  color: var(--brand);
  font-style: italic;
  font-weight: 300;
}
.det-hero .promise {
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink-soft);
  margin-bottom: 32px;
  max-width: 30ch;
}
.det-hero.center .promise { max-width: 56ch; text-align: center; }
.det-hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* Concept-art illustration — the aviation scenarios style */
.concept-art {
  aspect-ratio: 5 / 4;
  border-radius: 22px;
  background-color: var(--sky-50);
  background-image:
    radial-gradient(circle at 30% 30%, rgba(26,91,255,0.16), transparent 50%),
    linear-gradient(135deg, #F0F4FF 0%, #DCE6FF 100%);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  justify-self: end;
  width: 100%;
  max-width: 640px;
}
.concept-art::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,91,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,91,255,0.06) 1px, transparent 1px);
  background-size: 18px 18px;
  pointer-events: none;
}
.concept-art > svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}
.concept-art .ca-corners {
  position: absolute;
  inset: 14px;
  pointer-events: none;
  z-index: 5;
}
.concept-art .ca-corners > div {
  position: absolute;
  width: 14px; height: 14px;
  border: 1px solid rgba(26,91,255,0.4);
}
.concept-art .ca-corners .tl { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.concept-art .ca-corners .tr { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.concept-art .ca-corners .bl { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.concept-art .ca-corners .br { bottom: 0; right: 0; border-left: 0; border-top: 0; }
.concept-art .ca-hud {
  position: absolute;
  top: 16px;
  left: 22px;
  right: 22px;
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  z-index: 6;
}
.concept-art .ca-hud .brand-mono { color: var(--brand); }

/* Detail "What it is" section */
.what-section {
  background: var(--paper);
  padding: 140px 0;
}
.what-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.what-grid .left h2 { font-size: clamp(40px, 4.4vw, 56px); font-weight: 500; letter-spacing: -0.03em; margin-top: 18px; }
.what-grid .right p { font-size: 18px; line-height: 1.6; color: var(--ink-soft); margin-bottom: 18px; }
.what-grid .right p:last-child { margin-bottom: 0; }

/* Sub-services / use-cases grid (2 col, with illustration) */
.subs {
  padding: 140px 0;
  background: var(--surface);
}
.subs .sec-head { grid-template-columns: 1fr; text-align: center; justify-items: center; margin-bottom: 64px; }
.subs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.sub-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 40px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 36px;
  align-items: start;
  transition: all 220ms var(--ease);
}
.sub-card:hover { border-color: var(--ink); transform: translateY(-3px); box-shadow: 0 20px 40px -20px rgba(5,26,102,0.18); }
.sub-card .sa {
  aspect-ratio: 1/1;
  border-radius: 14px;
  position: relative;
  overflow: hidden;
  background-color: var(--sky-50);
  background-image:
    radial-gradient(circle at 30% 30%, rgba(26,91,255,0.18), transparent 55%),
    linear-gradient(135deg, #F0F4FF 0%, #DCE6FF 100%);
  border: 1px solid rgba(26,91,255,0.12);
}
.sub-card .sa::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,91,255,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,91,255,0.07) 1px, transparent 1px);
  background-size: 14px 14px;
  pointer-events: none;
}
.sub-card .sa > svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}
.sub-card .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--brand);
  margin-bottom: 14px;
}
.sub-card h3 { font-size: 24px; margin-bottom: 12px; letter-spacing: -0.02em; }
.sub-card p { font-size: 15px; line-height: 1.55; color: var(--ink-soft); }
.sub-card .feat {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sub-card .feat span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
}

/* "Where it fits" grid (4 small cards) */
.fits {
  padding: 140px 0;
  background: var(--paper);
}
.fits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.fit-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 220ms var(--ease);
  text-decoration: none;
  color: var(--ink);
}
.fit-card:hover { border-color: var(--ink); transform: translateY(-3px); }
.fit-card .dnum {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted-2);
}
.fit-card h4 { font-size: 19px; }
.fit-card p { font-size: 13.5px; color: var(--muted); line-height: 1.55; }
.fit-card .uc { font-size: 12.5px; color: var(--ink-soft); font-weight: 500; margin-top: auto; padding-top: 8px; border-top: 1px solid var(--line-soft); }

/* Delivery band (dark, 5-step mini) */
.delivery-band {
  background: var(--ink);
  color: white;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.delivery-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 1100px 500px at 70% 30%, rgba(26,91,255,0.3), transparent 60%);
}
.delivery-band .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: center;
}
.delivery-band .left h2 { color: white; font-size: 40px; font-weight: 500; letter-spacing: -0.03em; }
.delivery-band .left p { color: #B7C2E0; font-size: 16px; margin-top: 16px; line-height: 1.55; }
.delivery-band .stages {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.delivery-band .stages .s {
  text-align: center;
  padding: 18px 8px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
}
.delivery-band .stages .s .n {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--sky);
  margin-bottom: 10px;
}
.delivery-band .stages .s .l {
  font-family: 'Sora', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: white;
}

/* Detail page CTA */
.det-cta {
  padding: 140px 0;
  background: linear-gradient(180deg, var(--paper) 0%, var(--sky-50) 100%);
  text-align: center;
}
.det-cta h2 {
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 400;
  letter-spacing: -0.035em;
  margin-bottom: 18px;
}
.det-cta h2 em { color: var(--brand); font-style: italic; font-weight: 300; }
.det-cta p { color: var(--ink-soft); font-size: 18px; max-width: 56ch; margin: 0 auto 36px; }

/* Industry overview / Solutions overview shared grid */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tile {
  background: var(--surface);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  min-height: 280px;
  transition: background 200ms var(--ease);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
}
.tile:hover { background: var(--sky-50); }
.tile .tnum {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted-2);
}
.tile h3 { font-size: 26px; letter-spacing: -0.02em; }
.tile .tout {
  font-size: 13.5px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.tile .tout .arrow { color: var(--brand); }
.tile.dark { background: var(--ink); color: white; }
.tile.dark:hover { background: var(--brand-900); }
.tile.dark h3 { color: white; }
.tile.dark .tout { color: #B7C2E0; }
.tile.dark .tnum { color: var(--sky); }
.tile .tag-new {
  position: absolute;
  top: 18px; right: 18px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 0.18em;
  background: #FF6A00;
  color: white;
  padding: 3px 7px;
  border-radius: 4px;
}

/* Concept-art SVG color tokens (so the aviation-style art everywhere
   stays coherent) */
.ca-line  { stroke: var(--brand); }
.ca-fill  { fill: var(--brand); }
.ca-soft  { stroke: var(--brand); opacity: 0.55; }
.ca-hit   { fill: #FF6A00; }
.ca-hit-r { stroke: #FF6A00; }

/* =========================================================
   MOBILE NAV — hamburger + slide-down drawer
   Injected by scripts/site.js into every page's existing
   <header class="nav-shell"> on small screens.
   ========================================================= */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.6);
  color: var(--ink);
  cursor: pointer;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle svg { width: 18px; height: 18px; stroke: currentColor; stroke-width: 1.8; fill: none; }
.nav-toggle .icon-close { display: none; }
.nav-shell.is-open .nav-toggle .icon-open { display: none; }
.nav-shell.is-open .nav-toggle .icon-close { display: block; }

.nav-drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6,14,42,0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 45;
  opacity: 0;
  transition: opacity 220ms var(--ease);
}
body.nav-open .nav-drawer-backdrop { display: block; opacity: 1; }
body.nav-open { overflow: hidden; }

/* =========================================================
   RESPONSIVE BREAKPOINTS
   ≤1024px tablet  ·  ≤768px small tablet/large phone  ·  ≤560px phone
   ========================================================= */

/* ---------- ≤1024px (tablet) ---------- */
@media (max-width: 1024px) {
  :root { --gutter: 32px; }
  .section { padding: 96px 0; }
  .section.tight { padding: 72px 0; }

  .sec-head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 48px; }
  .sec-head .h2 { max-width: none; }

  .det-hero .container { grid-template-columns: 1fr; gap: 56px; }
  .det-hero .promise { max-width: 56ch; }
  .concept-art { max-width: 100%; justify-self: stretch; }

  .what-grid { grid-template-columns: 1fr; gap: 40px; }
  .subs-grid { grid-template-columns: 1fr; gap: 20px; }
  .sub-card { grid-template-columns: 160px 1fr; gap: 24px; padding: 28px; }

  .fits-grid { grid-template-columns: repeat(2, 1fr); }
  .tile-grid { grid-template-columns: repeat(2, 1fr); }
  .delivery-band .container { grid-template-columns: 1fr; gap: 32px; }

  .foot-top { grid-template-columns: 1.6fr 1fr 1fr; gap: 36px; }
  .foot-bot { grid-template-columns: 1fr 1fr; gap: 28px; }

  .logo-strip { grid-template-columns: repeat(3, 1fr); gap: 32px 36px; }
  .mega { width: min(720px, 92vw); grid-template-columns: repeat(2, 1fr); }
  .det-hero h1 { font-size: clamp(40px, 6vw, 72px); }
}

/* ---------- ≤768px (phones / small tablets) ---------- */
@media (max-width: 768px) {
  :root {
    --gutter: 20px;
    --nav-h: 60px;
    --t-body: 16px;
    --t-lead: 17px;
    --t-h3:  24px;
    --t-h4:  19px;
  }

  /* Hamburger appears, desktop nav collapses into drawer */
  .nav-toggle { display: inline-flex; }
  .nav-inner { gap: 12px; }
  .nav-shell .nav-links {
    position: fixed;
    top: var(--nav-top, var(--nav-h));
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px -20px rgba(5,26,102,0.18);
    padding: 12px 20px 24px;
    max-height: calc(100vh - var(--nav-top, var(--nav-h)));
    overflow-y: auto;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms var(--ease), transform 220ms var(--ease);
    z-index: 60;
  }
  .nav-shell.is-open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-shell .nav-links > li { width: 100%; }
  .nav-shell .nav-links,
  .nav-shell .nav-links a,
  .nav-shell .nav-links button,
  .nav-shell .nav-links strong,
  .nav-shell .nav-links span {
    /* On dark-nav pages, inline styles set color:white on links/buttons
       which makes them invisible against the white mobile drawer.
       Force ink color in the drawer. */
    color: var(--ink) !important;
  }
  .nav-shell .nav-links a.is-active,
  .nav-shell .nav-links button.is-active {
    color: var(--brand) !important;
  }
  .nav-shell .nav-links a,
  .nav-shell .nav-links button {
    width: 100%;
    justify-content: space-between;
    padding: 14px 12px;
    border-radius: 10px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-shell .nav-links li:last-child a,
  .nav-shell .nav-links li:last-child button { border-bottom: 0; }
  .mega a span { color: var(--muted) !important; }

  /* Mega menu — inline expand inside drawer */
  .mega {
    position: static;
    transform: none;
    width: 100%;
    grid-template-columns: 1fr;
    box-shadow: none;
    border: 0;
    background: var(--paper);
    padding: 6px 0 14px 12px;
    opacity: 1;
    pointer-events: auto;
    border-radius: 0;
    margin-top: 4px;
    display: none;
  }
  .has-mega.is-expanded .mega { display: grid; }
  .has-mega:hover .mega,
  .has-mega:focus-within .mega { transform: none; }
  .mega a { min-height: 0; padding: 10px 12px; }
  .mega a strong { font-size: 14px; }
  .mega a span { display: none; }

  /* CTA in nav */
  .nav-inner > .btn { padding: 10px 14px; font-size: 13px; }
  .nav-inner > .btn .arrow { display: none; }
  .nav-brand img { height: 22px; }

  /* Utility bar — non-fixed on mobile (scrolls away with content).
     Nav switches to sticky so it stays on screen but doesn't overlay
     the utility bar above it. */
  .utility-bar {
    position: static;
    padding: 10px 16px;
    font-size: 12px;
    line-height: 1.35;
  }
  .utility-bar .mono { display: none; }
  .utility-bar .ub-inner { gap: 6px; padding: 0; flex-wrap: wrap; }
  .with-utility { padding-top: 0; }
  .nav-shell {
    position: sticky;
    top: 0;
  }
  .with-utility .nav-shell { top: 0; }

  .section { padding: 72px 0; }
  .section.tight { padding: 56px 0; }

  .h1 { font-size: clamp(38px, 9vw, 56px); }
  .h2 { font-size: clamp(28px, 6vw, 40px); }
  .lead { font-size: 16px; }

  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 80px); padding-bottom: 72px; }

  .det-hero { min-height: auto; padding-top: calc(var(--nav-h) + 60px); padding-bottom: 64px; }
  .det-hero h1 { font-size: clamp(34px, 8vw, 56px); margin: 14px 0 18px; }
  .det-hero .promise { font-size: 17px; }
  .det-hero .crumbs { margin-bottom: 24px; }

  .what-section, .subs, .fits { padding: 72px 0; }
  .what-grid .left h2 { font-size: clamp(28px, 6vw, 40px); }
  .what-grid .right p { font-size: 16px; }
  .sub-card { grid-template-columns: 1fr; padding: 24px; gap: 18px; }
  .sub-card .sa { aspect-ratio: 16/9; }
  .fits-grid { grid-template-columns: 1fr; gap: 12px; }
  .fit-card { padding: 22px 20px; }

  .delivery-band { padding: 72px 0; }
  .delivery-band .stages { grid-template-columns: repeat(5, 1fr); gap: 4px; }
  .delivery-band .stages .s { padding: 12px 4px; }
  .delivery-band .stages .s .l { font-size: 11px; }
  .delivery-band .stages .s .n { font-size: 9px; letter-spacing: 0.18em; margin-bottom: 6px; }
  .delivery-band .left h2 { font-size: 28px; }

  .det-cta { padding: 72px 0; }
  .det-cta p { font-size: 16px; }

  .tile-grid { grid-template-columns: 1fr; }
  .tile { min-height: 0; padding: 28px 22px; gap: 20px; }
  .tile h3 { font-size: 22px; }

  /* Footer */
  .foot-top {
    grid-template-columns: 1fr 1fr;
    gap: 28px 24px;
    margin-bottom: 40px;
    padding-bottom: 36px;
  }
  .foot-brand { grid-column: 1 / -1; }
  .foot-brand p { max-width: 40ch; }
  .foot-bot { grid-template-columns: 1fr; gap: 24px; }
  .foot-legal { margin-top: 36px; padding-top: 20px; }
  .foot-legal a { margin-left: 0; margin-right: 16px; }
  footer.site-foot { padding: 64px 0 40px; }

  /* Logo strip — 2 cols on phones */
  .logo-strip { grid-template-columns: repeat(2, 1fr); gap: 28px 24px; }
  .logo-strip img { height: 26px; }

  /* Chrome — hide section ID labels on phones */
  .sec-id { display: none; }

  .btn { padding: 12px 18px; font-size: 14px; }

  .metric .num { font-size: 44px; }
  .metric .suffix { font-size: 24px; }
  .metric .lbl { font-size: 10px; margin-top: 10px; letter-spacing: 0.18em; }
}

/* ---------- ≤560px (small phones) ---------- */
@media (max-width: 560px) {
  :root { --gutter: 16px; }
  .section { padding: 56px 0; }
  .det-hero .cta-row { flex-direction: column; align-items: stretch; }
  .det-hero .cta-row .btn { justify-content: center; }
  .foot-top { grid-template-columns: 1fr; }
}

/* Disable card lift on touch devices */
@media (hover: none) {
  .card:hover,
  .work-card:hover,
  .cap-card:hover,
  .sol-card:hover,
  .sub-card:hover,
  .fit-card:hover { transform: none; }
}