:root {
  --navy-950: #071b36;
  --navy-900: #0b2344;
  --navy-850: #102a50;
  --navy-800: #16355f;
  --navy-700: #244871;
  --silver-300: #d9dce2;
  --silver-200: #e9ebef;
  --silver-100: #f4f5f7;
  --white: #ffffff;
  --ink: #101828;
  --muted: #5f6b7a;
  --line: rgba(11, 35, 68, 0.13);
  --shadow: 0 18px 50px rgba(7, 27, 54, 0.12);
  --shadow-strong: 0 24px 65px rgba(7, 27, 54, 0.18);
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1220px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 1000;
  background: var(--white);
  color: var(--navy-950);
  padding: 12px 16px;
  border-radius: 8px;
}
.skip-link:focus { top: 12px; }

.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { padding: 104px 0; }
.section-tight { padding: 72px 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--navy-700);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 30px; height: 1px; background: currentColor; }
.eyebrow.light { color: rgba(255,255,255,0.75); }
.section-title {
  margin: 0;
  color: var(--navy-950);
  font-size: clamp(2.1rem, 4.3vw, 4.45rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
  font-weight: 650;
}
.section-title.small { font-size: clamp(1.85rem, 3vw, 3rem); }
.section-title.light { color: var(--white); }
.section-copy {
  max-width: 730px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  line-height: 1.75;
}
.section-copy.light { color: rgba(255,255,255,0.76); }
.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 34px;
  margin-bottom: 44px;
}
.section-heading-row .section-copy { max-width: 520px; margin: 0; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 82px;
  background: rgba(255,255,255,0.93);
  border-bottom: 1px solid rgba(11,35,68,0.08);
  backdrop-filter: blur(16px);
  transition: box-shadow 220ms ease, height 220ms ease;
}
.site-header.scrolled { height: 72px; box-shadow: 0 10px 36px rgba(7,27,54,0.1); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand img { width: 115px; height: auto; }
.desktop-nav { display: flex; align-items: center; gap: 27px; }
.desktop-nav > a,
.nav-dropdown > button {
  border: 0;
  background: transparent;
  padding: 14px 0;
  color: var(--navy-900);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
}
.desktop-nav > a::after,
.nav-dropdown > button::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 8px;
  height: 1px;
  background: var(--navy-700);
  transition: right 220ms ease;
}
.desktop-nav > a:hover::after,
.desktop-nav > a.active::after,
.nav-dropdown:hover > button::after { right: 0; }
.nav-dropdown { position: relative; }
.nav-dropdown > button { display: flex; align-items: center; gap: 6px; }
.nav-dropdown > button svg { width: 14px; transition: transform 180ms ease; }
.nav-dropdown:hover > button svg { transform: rotate(180deg); }
.dropdown-menu {
  position: absolute;
  top: calc(100% - 2px);
  left: -22px;
  width: 315px;
  padding: 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(9px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms;
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 12px 12px; border-radius: 10px; color: var(--navy-900); font-size: 0.9rem; font-weight: 600; }
.dropdown-menu a span { display: block; margin-top: 4px; color: var(--muted); font-size: 0.78rem; font-weight: 450; line-height: 1.4; }
.dropdown-menu a:hover { background: var(--silver-100); }
.header-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border-radius: 999px; background: var(--navy-900); color: var(--white); font-size: 0.86rem; font-weight: 700; transition: transform 180ms ease, background 180ms ease; }
.header-cta:hover { background: var(--navy-800); transform: translateY(-1px); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; border-radius: 50%; background: var(--silver-100); color: var(--navy-900); align-items: center; justify-content: center; }
.menu-toggle svg { width: 23px; }
.mobile-nav { display: none; }

.hero {
  min-height: 820px;
  padding-top: 82px;
  background: var(--navy-950);
  overflow: hidden;
  position: relative;
}
.hero-grid { min-height: 738px; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr); }
.hero-content {
  position: relative;
  z-index: 4;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 82px max(40px, calc((100vw - var(--container))/2 + 20px)) 78px max(24px, calc((100vw - var(--container))/2 + 20px));
  background:
    radial-gradient(circle at 18% 18%, rgba(44,91,143,0.28), transparent 34%),
    linear-gradient(130deg, var(--navy-950) 0%, #0a2447 66%, #112f59 100%);
}
.hero-content::after {
  content: "";
  position: absolute;
  right: -120px;
  top: 0;
  width: 245px;
  height: 100%;
  background: linear-gradient(90deg, rgba(17,47,89,1) 0%, rgba(17,47,89,0) 100%);
  z-index: -1;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  padding: 9px 13px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: rgba(255,255,255,0.78);
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(12px);
  animation: heroReveal 700ms 160ms ease forwards;
}
.hero-kicker::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--silver-300); box-shadow: 0 0 0 5px rgba(217,220,226,0.09); }
.hero h1 {
  max-width: 790px;
  margin: 28px 0 0;
  color: var(--white);
  font-size: clamp(3rem, 6.1vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  font-weight: 620;
  text-wrap: balance;
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 780ms 260ms ease forwards;
}
.hero h1 span { color: var(--silver-300); }
.hero-lead {
  max-width: 690px;
  margin: 28px 0 0;
  color: rgba(255,255,255,0.72);
  font-size: clamp(1.04rem, 1.4vw, 1.23rem);
  line-height: 1.72;
  opacity: 0;
  transform: translateY(20px);
  animation: heroReveal 780ms 380ms ease forwards;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; opacity: 0; transform: translateY(20px); animation: heroReveal 780ms 500ms ease forwards; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 22px; border-radius: 999px; border: 1px solid transparent; font-weight: 720; font-size: 0.92rem; transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease; }
.btn svg { width: 17px; transition: transform 180ms ease; }
.btn:hover { transform: translateY(-2px); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--white); color: var(--navy-950); }
.btn-primary:hover { background: var(--silver-200); }
.btn-secondary { border-color: rgba(255,255,255,0.32); color: var(--white); background: rgba(255,255,255,0.04); }
.btn-secondary:hover { border-color: rgba(255,255,255,0.62); background: rgba(255,255,255,0.08); }
.btn-navy { background: var(--navy-900); color: var(--white); }
.btn-navy:hover { background: var(--navy-800); }
.btn-outline { border-color: var(--line); color: var(--navy-900); background: var(--white); }
.btn-outline:hover { border-color: rgba(11,35,68,0.35); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 20px 30px; margin-top: 42px; color: rgba(255,255,255,0.6); font-size: 0.82rem; font-weight: 600; opacity: 0; animation: heroReveal 780ms 620ms ease forwards; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,0.62); }
.hero-visual { position: relative; overflow: hidden; background: #12325d; }
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 45%;
  transform: scale(1.035);
  animation: heroPan 18s ease-in-out infinite alternate;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7,27,54,0.28), transparent 30%), linear-gradient(0deg, rgba(7,27,54,0.20), transparent 35%);
}
.light-sweep {
  position: absolute;
  z-index: 3;
  top: -20%;
  left: -65%;
  width: 26%;
  height: 145%;
  transform: rotate(18deg);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  filter: blur(12px);
  animation: lightSweep 8s 1.8s ease-in-out infinite;
  pointer-events: none;
}
.hero-index {
  position: absolute;
  right: 28px;
  bottom: 26px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.68);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-index::before { content: ""; width: 62px; height: 1px; background: rgba(255,255,255,0.48); }

@keyframes heroReveal { to { opacity: 1; transform: translateY(0); } }
@keyframes heroPan { 0% { transform: scale(1.035) translate3d(0,0,0); } 100% { transform: scale(1.10) translate3d(-1.5%, -1%, 0); } }
@keyframes lightSweep { 0%, 18% { left: -65%; opacity: 0; } 28% { opacity: 0.85; } 46% { left: 130%; opacity: 0; } 100% { left: 130%; opacity: 0; } }

.client-strip { border-bottom: 1px solid var(--line); background: var(--white); }
.client-strip-inner { min-height: 112px; display: grid; grid-template-columns: 1.35fr repeat(4, 1fr); align-items: center; gap: 22px; }
.client-strip-title { color: var(--navy-900); font-size: 0.82rem; font-weight: 750; letter-spacing: 0.11em; text-transform: uppercase; }
.client-type { padding-left: 20px; border-left: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; font-weight: 600; line-height: 1.35; }

.intro-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 90px; align-items: start; }
.intro-statement { position: sticky; top: 116px; }
.intro-points { display: grid; gap: 0; border-top: 1px solid var(--line); }
.intro-point { display: grid; grid-template-columns: 62px 1fr; gap: 22px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.intro-number { color: var(--navy-700); font-size: 0.8rem; font-weight: 750; letter-spacing: 0.08em; }
.intro-point h3 { margin: 0; color: var(--navy-950); font-size: 1.12rem; font-weight: 700; }
.intro-point p { margin: 9px 0 0; color: var(--muted); line-height: 1.67; }

.capabilities { background: var(--silver-100); }
.card-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.capability-card {
  position: relative;
  min-height: 420px;
  padding: 34px;
  border: 1px solid rgba(11,35,68,0.1);
  border-radius: var(--radius-lg);
  background: var(--white);
  overflow: hidden;
  transform: translateZ(0);
  transition: transform 300ms ease, box-shadow 300ms ease, border-color 300ms ease;
}
.capability-card::before {
  content: "";
  position: absolute;
  inset: auto -60px -100px auto;
  width: 210px;
  height: 210px;
  border: 1px solid rgba(11,35,68,0.08);
  border-radius: 50%;
  transition: transform 500ms ease, border-color 300ms ease;
}
.capability-card:hover {
  border-color: rgba(11,35,68,0.26);
  box-shadow: var(--shadow-strong);
  animation: cardPulse 1.55s ease-in-out infinite;
}
.capability-card:hover::before { transform: scale(1.2); border-color: rgba(11,35,68,0.16); }
@keyframes cardPulse { 0%,100% { transform: translateY(-7px) scale(1); } 50% { transform: translateY(-7px) scale(1.012); } }
.card-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: var(--navy-900);
  color: var(--white);
}
.card-icon svg { width: 25px; }
.card-number { position: absolute; right: 28px; top: 28px; color: rgba(11,35,68,0.28); font-size: 0.76rem; font-weight: 750; letter-spacing: 0.08em; }
.capability-card h3 { margin: 55px 0 0; color: var(--navy-950); font-size: 1.62rem; line-height: 1.18; letter-spacing: -0.025em; font-weight: 650; }
.capability-card p { margin: 18px 0 0; color: var(--muted); line-height: 1.68; }
.card-link { position: absolute; left: 34px; bottom: 32px; display: inline-flex; align-items: center; gap: 9px; color: var(--navy-900); font-size: 0.9rem; font-weight: 750; }
.card-link svg { width: 17px; transition: transform 180ms ease; }
.capability-card:hover .card-link svg { transform: translateX(4px); }

.approach { background: var(--navy-950); overflow: hidden; position: relative; }
.approach::before { content: ""; position: absolute; width: 560px; height: 560px; border: 1px solid rgba(255,255,255,0.06); border-radius: 50%; right: -180px; top: -240px; }
.approach-grid { display: grid; grid-template-columns: 0.68fr 1.32fr; gap: 84px; align-items: start; position: relative; z-index: 1; }
.approach-steps { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid rgba(255,255,255,0.16); }
.approach-step { min-height: 210px; padding: 27px 24px 30px 0; border-bottom: 1px solid rgba(255,255,255,0.16); }
.approach-step:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.16); padding-right: 28px; }
.approach-step:nth-child(even) { padding-left: 28px; }
.step-number { color: rgba(255,255,255,0.45); font-size: 0.77rem; font-weight: 750; letter-spacing: 0.09em; }
.approach-step h3 { margin: 26px 0 0; color: var(--white); font-size: 1.18rem; font-weight: 650; }
.approach-step p { margin: 10px 0 0; color: rgba(255,255,255,0.64); line-height: 1.6; font-size: 0.92rem; }

.physics-grid { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 28px; align-items: stretch; }
.physics-visual {
  min-height: 560px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background: linear-gradient(145deg, #0c2446, #1c4774);
}
.physics-visual::before,
.physics-visual::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,0.13); }
.physics-visual::before { width: 420px; height: 420px; left: -140px; top: 70px; }
.physics-visual::after { width: 250px; height: 250px; right: -80px; bottom: 20px; }
.physics-diagram { position: absolute; inset: 0; width: 100%; height: 100%; }
.physics-overlay { position: absolute; inset: auto 34px 32px; z-index: 3; display: flex; flex-wrap: wrap; gap: 9px; }
.physics-chip { padding: 9px 12px; border: 1px solid rgba(255,255,255,0.2); border-radius: 999px; background: rgba(7,27,54,0.42); backdrop-filter: blur(8px); color: rgba(255,255,255,0.78); font-size: 0.76rem; font-weight: 650; }
.physics-content { padding: 52px; border-radius: var(--radius-lg); background: var(--silver-100); display: flex; flex-direction: column; justify-content: center; }
.physics-list { list-style: none; margin: 30px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px 26px; }
.physics-list li { display: flex; gap: 10px; color: var(--navy-900); font-size: 0.9rem; font-weight: 650; line-height: 1.45; }
.physics-list li::before { content: ""; width: 7px; height: 7px; margin-top: 7px; border-radius: 50%; background: var(--navy-700); flex-shrink: 0; }

.experience-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 22px; }
.experience-card { min-height: 300px; padding: 30px; border-radius: var(--radius-md); border: 1px solid var(--line); background: var(--white); transition: transform 240ms ease, box-shadow 240ms ease; }
.experience-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.experience-card:nth-child(1), .experience-card:nth-child(4) { grid-column: span 7; }
.experience-card:nth-child(2), .experience-card:nth-child(3) { grid-column: span 5; }
.experience-card .tag { display: inline-flex; padding: 7px 10px; border-radius: 999px; background: var(--silver-100); color: var(--navy-700); font-size: 0.72rem; font-weight: 750; letter-spacing: 0.05em; text-transform: uppercase; }
.experience-card h3 { margin: 45px 0 0; color: var(--navy-950); font-size: 1.45rem; line-height: 1.24; letter-spacing: -0.02em; }
.experience-card p { margin: 14px 0 0; color: var(--muted); line-height: 1.65; }

.residential-band { background: linear-gradient(135deg, #e9edf2, #f8f9fb); }
.residential-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.residential-art { min-height: 480px; border-radius: var(--radius-lg); position: relative; overflow: hidden; background: var(--white); border: 1px solid var(--line); }
.house-drawing { position: absolute; inset: 0; width: 100%; height: 100%; }
.residential-services { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.residential-services span { padding: 9px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,0.72); color: var(--navy-900); font-size: 0.8rem; font-weight: 650; }

.insights-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.insight-card { border-radius: var(--radius-md); border: 1px solid var(--line); overflow: hidden; background: var(--white); transition: transform 240ms ease, box-shadow 240ms ease; }
.insight-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.insight-image { height: 190px; padding: 24px; background: linear-gradient(145deg, var(--navy-900), var(--navy-700)); color: rgba(255,255,255,0.76); display: flex; flex-direction: column; justify-content: space-between; }
.insight-image svg { width: 36px; }
.insight-image span { font-size: 0.72rem; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; }
.insight-content { padding: 26px; }
.insight-content h3 { margin: 0; color: var(--navy-950); font-size: 1.2rem; line-height: 1.36; }
.insight-content p { margin: 13px 0 0; color: var(--muted); line-height: 1.6; font-size: 0.9rem; }
.insight-content a { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; color: var(--navy-900); font-weight: 750; font-size: 0.86rem; }

.cta-section { padding: 0 0 90px; }
.cta-panel {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  padding: 68px;
  border-radius: 30px;
  background: linear-gradient(125deg, var(--navy-950), #153c68);
  color: var(--white);
  display: flex;
  align-items: center;
}
.cta-panel::before { content: ""; position: absolute; width: 360px; height: 360px; border: 1px solid rgba(255,255,255,0.1); border-radius: 50%; right: -50px; top: -110px; }
.cta-panel::after { content: ""; position: absolute; width: 260px; height: 1px; background: linear-gradient(90deg, rgba(255,255,255,0), rgba(255,255,255,0.65)); right: 30px; bottom: 85px; transform: rotate(-22deg); }
.cta-content { max-width: 770px; position: relative; z-index: 2; }
.cta-content h2 { margin: 0; font-size: clamp(2.3rem, 4.5vw, 4.5rem); line-height: 1.03; letter-spacing: -0.045em; font-weight: 620; }
.cta-content p { margin: 22px 0 0; max-width: 650px; color: rgba(255,255,255,0.72); font-size: 1.05rem; line-height: 1.7; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.site-footer { background: #06172e; color: rgba(255,255,255,0.74); }
.footer-main { padding: 70px 0 54px; display: grid; grid-template-columns: 1.3fr 0.8fr 0.8fr 1fr; gap: 50px; }
.footer-brand img { width: 120px; filter: brightness(0) invert(1); opacity: 0.95; }
.footer-brand p { max-width: 390px; margin: 24px 0 0; color: rgba(255,255,255,0.62); line-height: 1.65; }
.footer-title { margin: 0 0 18px; color: var(--white); font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; }
.footer-links { display: grid; gap: 11px; }
.footer-links a { font-size: 0.9rem; transition: color 160ms ease; }
.footer-links a:hover { color: var(--white); }
.footer-contact a { display: inline-flex; align-items: center; gap: 10px; color: var(--white); font-weight: 650; }
.footer-contact svg { width: 18px; }
.footer-contact p { margin: 16px 0 0; color: rgba(255,255,255,0.58); line-height: 1.6; font-size: 0.88rem; }
.footer-bottom { min-height: 76px; border-top: 1px solid rgba(255,255,255,0.11); display: flex; align-items: center; justify-content: space-between; gap: 20px; font-size: 0.78rem; color: rgba(255,255,255,0.5); }
.footer-social { display: flex; align-items: center; gap: 12px; }
.footer-social a { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,0.16); border-radius: 50%; color: var(--white); }
.footer-social svg { width: 17px; }

/* Inner pages */
.page-hero { padding: 170px 0 90px; background: linear-gradient(135deg, var(--navy-950), #143b68); color: var(--white); position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; width: 480px; height: 480px; right: -120px; top: -210px; border: 1px solid rgba(255,255,255,0.09); border-radius: 50%; }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { max-width: 880px; margin: 18px 0 0; font-size: clamp(2.8rem, 5.8vw, 5.4rem); line-height: 1; letter-spacing: -0.05em; font-weight: 620; }
.page-hero p { max-width: 760px; margin: 25px 0 0; color: rgba(255,255,255,0.72); font-size: 1.12rem; line-height: 1.72; }
.breadcrumb { display: flex; align-items: center; gap: 9px; color: rgba(255,255,255,0.62); font-size: 0.78rem; font-weight: 650; }
.breadcrumb a:hover { color: var(--white); }
.content-grid { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: 85px; align-items: start; }
.content-aside { position: sticky; top: 110px; }
.content-aside h2 { margin: 0; color: var(--navy-950); font-size: 1.95rem; letter-spacing: -0.03em; }
.content-aside p { color: var(--muted); line-height: 1.65; }
.content-main { display: grid; gap: 26px; }
.detail-card { padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.detail-card h3 { margin: 0; color: var(--navy-950); font-size: 1.25rem; }
.detail-card p { margin: 13px 0 0; color: var(--muted); line-height: 1.68; }
.detail-card ul { margin: 18px 0 0; padding-left: 18px; color: var(--muted); line-height: 1.72; }
.services-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.service-item { padding: 24px; background: var(--silver-100); border-radius: var(--radius-sm); }
.service-item h3 { margin: 0; color: var(--navy-950); font-size: 1.03rem; }
.service-item p { margin: 9px 0 0; color: var(--muted); font-size: 0.9rem; line-height: 1.6; }
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.team-card { padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.team-avatar { width: 66px; height: 66px; display: grid; place-items: center; border-radius: 50%; background: var(--navy-900); color: var(--white); font-size: 1.1rem; font-weight: 750; }
.team-card h3 { margin: 25px 0 0; color: var(--navy-950); font-size: 1.25rem; }
.team-role { margin-top: 5px; color: var(--navy-700); font-size: 0.82rem; font-weight: 750; }
.team-card p { margin: 16px 0 0; color: var(--muted); line-height: 1.62; }
.qualification-list { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 8px; }
.qualification-list li { color: var(--navy-900); font-size: 0.84rem; font-weight: 600; }
.contact-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 70px; }
.contact-card { padding: 36px; border-radius: var(--radius-lg); background: var(--navy-950); color: var(--white); }
.contact-card h2 { margin: 0; font-size: 2rem; letter-spacing: -0.03em; }
.contact-card p { color: rgba(255,255,255,0.7); line-height: 1.65; }
.contact-card a { display: inline-flex; align-items: center; gap: 9px; margin-top: 18px; color: var(--white); font-weight: 700; }
.contact-form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field label { display: block; margin-bottom: 8px; color: var(--navy-950); font-size: 0.82rem; font-weight: 700; }
.form-field input, .form-field select, .form-field textarea { width: 100%; border: 1px solid rgba(11,35,68,0.18); border-radius: 12px; background: var(--white); color: var(--ink); padding: 14px 15px; outline: none; transition: border-color 160ms ease, box-shadow 160ms ease; }
.form-field textarea { min-height: 170px; resize: vertical; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--navy-700); box-shadow: 0 0 0 4px rgba(36,72,113,0.1); }
.form-note { margin: 0; color: var(--muted); font-size: 0.8rem; line-height: 1.5; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 680ms ease, transform 680ms ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  .desktop-nav { gap: 18px; }
  .desktop-nav > a, .nav-dropdown > button { font-size: 0.82rem; }
  .header-cta { display: none; }
  .hero-grid { grid-template-columns: 1fr 0.78fr; }
  .hero-content { padding-right: 30px; }
  .client-strip-inner { grid-template-columns: repeat(4, 1fr); padding: 24px 0; }
  .client-strip-title { grid-column: 1 / -1; }
  .intro-grid, .approach-grid, .physics-grid, .residential-grid, .content-grid, .contact-grid { gap: 54px; }
  .footer-main { grid-template-columns: 1.2fr repeat(3, 1fr); gap: 30px; }
}

@media (max-width: 900px) {
  .site-header, .site-header.scrolled { height: 70px; }
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle { display: inline-flex; }
  .mobile-nav {
    display: grid;
    position: fixed;
    z-index: 99;
    top: 70px;
    left: 0;
    right: 0;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    padding: 24px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms;
  }
  .mobile-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .mobile-nav a { padding: 13px 0; color: var(--navy-900); font-weight: 650; border-bottom: 1px solid var(--line); }
  .mobile-nav .mobile-sub { padding-left: 18px; color: var(--muted); font-size: 0.88rem; }
  .hero { min-height: auto; padding-top: 70px; }
  .hero-grid { min-height: 0; grid-template-columns: 1fr; }
  .hero-content { min-height: 650px; padding: 88px max(24px, calc((100vw - var(--container))/2 + 20px)) 78px; }
  .hero-content::after { display: none; }
  .hero-visual { min-height: 610px; }
  .hero-visual img { object-position: center 48%; }
  .section { padding: 82px 0; }
  .section-heading-row { display: block; }
  .section-heading-row .section-copy { margin-top: 18px; }
  .intro-grid, .approach-grid, .physics-grid, .residential-grid, .content-grid, .contact-grid { grid-template-columns: 1fr; }
  .intro-statement, .content-aside { position: static; }
  .card-grid-3, .insights-grid, .team-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 360px; }
  .experience-card:nth-child(n) { grid-column: span 12; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 30px), var(--container)); }
  .brand img { width: 96px; }
  .hero-content { min-height: 620px; padding-top: 70px; }
  .hero h1 { font-size: clamp(2.8rem, 14vw, 4.1rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .hero-meta { gap: 12px; flex-direction: column; }
  .hero-visual { min-height: 570px; }
  .client-strip-inner { grid-template-columns: 1fr 1fr; gap: 20px; }
  .client-type { padding-left: 14px; font-size: 0.82rem; }
  .section { padding: 70px 0; }
  .section-tight { padding: 56px 0; }
  .section-title { font-size: 2.35rem; }
  .section-heading-row { margin-bottom: 32px; }
  .intro-grid { gap: 44px; }
  .intro-point { grid-template-columns: 42px 1fr; }
  .capability-card { padding: 26px; min-height: 380px; }
  .card-link { left: 26px; bottom: 26px; }
  .approach-steps { grid-template-columns: 1fr; }
  .approach-step:nth-child(odd), .approach-step:nth-child(even) { padding: 24px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,0.16); }
  .physics-content { padding: 34px 25px; }
  .physics-list, .services-list { grid-template-columns: 1fr; }
  .physics-visual { min-height: 450px; }
  .residential-art { min-height: 390px; }
  .cta-panel { min-height: 430px; padding: 42px 26px; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { align-items: flex-start; flex-direction: column; justify-content: center; padding: 22px 0; }
  .page-hero { padding: 135px 0 70px; }
  .page-hero h1 { font-size: 2.75rem; }
  .form-row { grid-template-columns: 1fr; }
  .team-card, .detail-card { padding: 26px; }
}

@media (hover: none), (pointer: coarse) {
  .capability-card:hover { animation: none; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}