/* ==========================================================
   Greybox Consulting — styles
   Brand: indigo #45419E (logo box) → rose #B35A6F (wordmark end)
   ========================================================== */
/* Self-hosted fonts (SIL Open Font License) — no third-party requests */
@font-face { font-family: "Plus Jakarta Sans"; font-style: normal; font-weight: 200 800; font-display: swap; src: url("../fonts/plus-jakarta-sans-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "Plus Jakarta Sans"; font-style: italic; font-weight: 200 800; font-display: swap; src: url("../fonts/plus-jakarta-sans-latin-wght-italic.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("../fonts/inter-latin-wght-normal.woff2") format("woff2"); }

:root {
  --indigo: #45419E;
  --indigo-600: #3B3790;
  --indigo-300: #8E8AE0;
  --indigo-50: #F1F0FB;
  --plum: #7A4C8C;
  --rose: #B35A6F;
  --ink: #17162E;
  --ink-2: #3D3C57;
  --muted: #66657F;
  --line: #E5E4EF;
  --paper: #FCFCFD;
  --paper-2: #F6F5FA;
  --night: #121128;
  --night-2: #1C1A3A;
  --grad: linear-gradient(90deg, #45419E 0%, #7A4C8C 55%, #B35A6F 100%);
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 1px 2px rgba(23,22,46,.04), 0 8px 24px -12px rgba(23,22,46,.12);
  --shadow-lg: 0 2px 4px rgba(23,22,46,.04), 0 24px 48px -20px rgba(69,65,158,.28);
  --head: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink-2);
  font: 400 17px/1.65 var(--body);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--indigo); text-decoration: none; }
a:hover { color: var(--plum); }
h1, h2, h3, h4 { font-family: var(--head); color: var(--ink); line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 5.2vw, 4rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.04; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.75rem); font-weight: 800; letter-spacing: -0.03em; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
em { font-style: italic; }
strong { color: var(--ink); font-weight: 600; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 12px; }
:focus-visible { outline: 3px solid var(--indigo-300); outline-offset: 3px; border-radius: 6px; }

.eyebrow {
  font: 700 .78rem/1 var(--head); letter-spacing: .14em; text-transform: uppercase;
  color: var(--indigo); margin-bottom: 1.1rem; display: inline-flex; align-items: center; gap: .6rem;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font: 600 1rem/1 var(--head); padding: 15px 24px; border-radius: 999px;
  border: 1.5px solid transparent; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s, color .2s;
}
.btn-primary { background: var(--indigo); color: #fff; box-shadow: 0 8px 20px -10px rgba(69,65,158,.7); }
.btn-primary:hover { background: var(--indigo-600); color: #fff; transform: translateY(-1px); box-shadow: 0 12px 26px -10px rgba(69,65,158,.75); }
.btn-ghost { color: var(--ink); border-color: var(--line); background: #fff; }
.btn-ghost:hover { border-color: var(--indigo-300); color: var(--indigo); }
.btn-sm { padding: 11px 18px; font-size: .92rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(252,252,253,.82); backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .25s, box-shadow .25s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 6px 24px -18px rgba(23,22,46,.35); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand img { height: 38px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a:not(.btn) { color: var(--ink-2); font: 500 .95rem/1 var(--head); position: relative; padding: 6px 0; }
.site-nav a:not(.btn)::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.site-nav a:not(.btn):hover, .site-nav a.active { color: var(--ink); }
.site-nav a:not(.btn):hover::after, .site-nav a.active::after { transform: scaleX(1); }
.nav-toggle { display: none; background: none; border: 0; width: 44px; height: 44px; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 72px 0 40px; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 50% at 85% 20%, rgba(179,90,111,.12), transparent 60%),
    radial-gradient(55% 60% at 70% 60%, rgba(69,65,158,.14), transparent 65%),
    linear-gradient(var(--paper), var(--paper));
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(69,65,158,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(69,65,158,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 70% at 70% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(70% 70% at 70% 40%, #000 20%, transparent 75%);
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; min-height: 520px; }
.lede { font-size: 1.2rem; color: var(--ink-2); max-width: 36em; margin: 1.4rem 0 2rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-note { margin-top: 2rem; font: 600 .82rem/1.4 var(--head); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

.hero-visual { position: relative; aspect-ratio: 1 / 1; max-width: 500px; justify-self: center; width: 100%; }
.hero-box { position: absolute; left: 50%; top: 58%; width: 54%; transform: translate(-50%, -50%); z-index: 2; filter: drop-shadow(0 30px 40px rgba(69,65,158,.35)); }
.hero-box .flap { transform-box: fill-box; }
.hero-box .fl { transform-origin: 100% 100%; animation: flapL 6s ease-in-out infinite; }
.hero-box .fr { transform-origin: 0% 100%; animation: flapR 6s ease-in-out infinite; }
@keyframes flapL { 0%,100% { transform: rotate(0deg); } 50% { transform: rotate(-6deg); } }
@keyframes flapR { 0%,100% { transform: rotate(0deg); } 50% { transform: rotate(6deg); } }
.glow { position: absolute; left: 50%; top: 40%; width: 60%; height: 40%; transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(179,90,111,.35), rgba(69,65,158,.18) 55%, transparent); filter: blur(10px); z-index: 1; }

.chip {
  position: absolute; z-index: 3; white-space: nowrap;
  font: 600 .85rem/1 var(--head); color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 10px 14px 10px 12px;
  box-shadow: var(--shadow-lg); display: inline-flex; align-items: center; gap: 8px;
  animation: float 7s ease-in-out infinite;
}
.chip::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--grad); }
.c1 { left: 6%;  top: 8%;  animation-delay: 0s; }
.c2 { right: 2%; top: 4%;  animation-delay: -1.2s; }
.c3 { left: -2%; top: 34%; animation-delay: -2.4s; }
.c4 { right: -4%; top: 30%; animation-delay: -3.6s; }
.c5 { left: 2%;  bottom: 10%; animation-delay: -4.8s; }
.c6 { right: 0%; bottom: 14%; animation-delay: -6s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.capability-strip {
  list-style: none; margin: 56px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(3, auto); gap: 12px 40px; justify-content: space-between;
}
.capability-strip li { font: 600 .9rem/1.3 var(--head); color: var(--muted); display: flex; align-items: center; gap: 10px; }
.capability-strip li::before { content: ""; width: 6px; height: 6px; transform: rotate(45deg); background: var(--indigo-300); }

/* ---------- Sections ---------- */
.section { padding: 112px 0; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-sub { font-size: 1.12rem; color: var(--muted); }
.section-head.light h2 { color: #fff; }
.section-head.light .section-sub { color: #B9B8D6; }
.section-head.light .eyebrow { color: var(--indigo-300); }

/* Why */
.why { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.why-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 72px; align-items: start; }
.why-intro p { font-size: 1.08rem; }
.pillars { display: grid; gap: 18px; }
.pillar { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px 22px 92px; position: relative; box-shadow: var(--shadow); }
.pillar-icon { position: absolute; left: 26px; top: 26px; width: 46px; height: 46px; border-radius: 12px; background: var(--indigo-50); display: grid; place-items: center; }
.pillar-icon svg { width: 24px; height: 24px; fill: none; stroke: var(--indigo); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.pillar h3 { margin-bottom: .35em; }
.pillar p { margin: 0; color: var(--muted); font-size: .98rem; }

/* Services */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px 30px 30px; box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s, border-color .25s; overflow: hidden;
}
.card::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .35s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #D6D4EA; }
.card:hover::before, .card.featured::before { transform: scaleX(1); }
.card-num { font: 800 .85rem/1 var(--head); color: var(--indigo-300); letter-spacing: .06em; display: block; margin-bottom: 18px; }
.card h3 { font-size: 1.25rem; }
.card p { color: var(--muted); font-size: .98rem; }
.ticks { list-style: none; padding: 16px 0 0; margin: 0; border-top: 1px dashed var(--line); }
.ticks li { position: relative; padding-left: 24px; font-size: .93rem; color: var(--ink-2); margin: 7px 0; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: .5em; width: 10px; height: 6px; border-left: 2px solid var(--indigo); border-bottom: 2px solid var(--indigo); transform: rotate(-45deg); }

/* Approach (dark) */
.approach { background: var(--night); color: #C9C8E3; position: relative; overflow: hidden; }
.approach::before { content: ""; position: absolute; inset: 0; background: radial-gradient(50% 60% at 90% 0%, rgba(179,90,111,.22), transparent 60%), radial-gradient(50% 60% at 0% 100%, rgba(69,65,158,.35), transparent 60%); pointer-events: none; }
.approach .container { position: relative; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: s; }
.step { position: relative; padding: 28px 22px 26px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.09); border-radius: var(--radius); }
.step::after { content: ""; position: absolute; top: 44px; right: -17px; width: 18px; height: 2px; background: linear-gradient(90deg, rgba(142,138,224,.6), rgba(179,90,111,.6)); }
.step:last-child::after { display: none; }
.step-num { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--grad); color: #fff; font: 800 .82rem/1 var(--head); margin-bottom: 18px; }
.step h3 { color: #fff; font-size: 1.15rem; }
.step p { font-size: .93rem; margin: 0; color: #B3B2D1; }
.engage { margin-top: 64px; padding-top: 44px; border-top: 1px solid rgba(255,255,255,.1); }
.engage-title { color: #fff; font-size: 1.35rem; margin-bottom: 24px; }
.engage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.engage-item { padding-left: 20px; border-left: 2px solid; border-image: linear-gradient(#8E8AE0, #B35A6F) 1; }
.engage-item h4 { color: #fff; font-size: 1.05rem; margin-bottom: .3em; }
.engage-item p { margin: 0; font-size: .95rem; color: #B3B2D1; }

/* Expertise */
.expertise-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.exp { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow); }
.exp-head { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.exp-head h3 { margin: 0; font-size: 1.3rem; }
.exp-dot { width: 14px; height: 14px; border-radius: 4px; transform: rotate(45deg); flex: none; }
.d1 { background: #45419E; } .d2 { background: #5F4795; } .d3 { background: #8A4F86; } .d4 { background: #B35A6F; }
.exp > p { color: var(--muted); }
.tags { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font: 500 .85rem/1 var(--head); padding: 9px 12px; border-radius: 999px; background: var(--indigo-50); color: var(--indigo-600); }

/* Clients */
.clients { background: var(--paper-2); border-top: 1px solid var(--line); }
.client-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.client { padding: 26px 22px; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); position: relative; }
.client::before { content: ""; display: block; width: 32px; height: 3px; border-radius: 3px; background: var(--grad); margin-bottom: 18px; }
.client h3 { font-size: 1.05rem; }
.client p { font-size: .92rem; color: var(--muted); margin: 0; }

/* Deliverables */
.deliv-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: center; }
.deliv-grid > div p { font-size: 1.08rem; margin-bottom: 1.8rem; }
.deliv-list { list-style: none; margin: 0; padding: 8px 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.deliv-list li { padding: 16px 28px 16px 64px; position: relative; color: var(--muted); border-bottom: 1px solid var(--line); font-size: .98rem; }
.deliv-list li:last-child { border-bottom: 0; }
.deliv-list li::before { content: ""; position: absolute; left: 28px; top: 50%; width: 20px; height: 20px; margin-top: -10px; border-radius: 6px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6L9 17l-5-5' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat, var(--grad); }
.deliv-list li span { color: var(--ink); font-weight: 600; }

/* Perspectives */
.perspectives { border-top: 1px solid var(--line); }
.persp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.persp { padding: 30px; border-radius: var(--radius-lg); background: linear-gradient(#fff, #fff) padding-box, linear-gradient(135deg, #D9D7F0, #EBD3DA) border-box; border: 1px solid transparent; display: flex; flex-direction: column; }
.persp-tag { align-self: flex-start; font: 700 .72rem/1 var(--head); letter-spacing: .12em; text-transform: uppercase; color: var(--rose); background: #FBF0F3; padding: 7px 10px; border-radius: 6px; margin-bottom: 18px; }
.persp h3 { font-size: 1.22rem; }
.persp p { color: var(--muted); font-size: .97rem; flex: 1; }
.text-link { font: 600 .95rem/1 var(--head); }

/* Contact */
.contact { background: var(--night); position: relative; overflow: hidden; color: #C9C8E3; }
.contact::before { content: ""; position: absolute; inset: 0; background: radial-gradient(45% 60% at 100% 100%, rgba(179,90,111,.25), transparent 60%), radial-gradient(45% 60% at 0% 0%, rgba(69,65,158,.4), transparent 60%); pointer-events: none; }
.contact .container { position: relative; }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
.contact h2 { color: #fff; }
.contact .eyebrow { color: var(--indigo-300); }
.contact-copy p { font-size: 1.1rem; color: #C9C8E3; }
.contact-list { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 14px; }
.contact-list li { display: flex; align-items: center; gap: 14px; }
.contact-list svg { width: 22px; height: 22px; fill: none; stroke: var(--indigo-300); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.contact-list a { color: #fff; font-weight: 500; border-bottom: 1px solid rgba(255,255,255,.25); }
.contact-list a:hover { border-color: #fff; color: #fff; }

.contact-form { background: #fff; border-radius: var(--radius-lg); padding: 34px; box-shadow: 0 30px 60px -30px rgba(0,0,0,.6); color: var(--ink-2); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: block; font: 600 .85rem/1.3 var(--head); color: var(--ink); margin-bottom: 16px; }
.contact-form input[type=text], .contact-form input[type=email], .contact-form select, .contact-form textarea {
  display: block; width: 100%; margin-top: 7px; font: 400 1rem/1.4 var(--body); color: var(--ink);
  border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; background: var(--paper); transition: border-color .2s, box-shadow .2s;
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--indigo); box-shadow: 0 0 0 4px rgba(69,65,158,.12); background: #fff; }
.contact-form .invalid { border-color: #C2415B !important; }
.interest { border: 0; padding: 0; margin: 0 0 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.interest legend { font: 600 .85rem/1.3 var(--head); color: var(--ink); margin-bottom: 9px; padding: 0; }
.contact-form .pill { margin: 0; cursor: pointer; }
.pill input { position: absolute; opacity: 0; pointer-events: none; }
.pill span { display: inline-block; font: 500 .85rem/1 var(--head); padding: 10px 14px; border-radius: 999px; border: 1.5px solid var(--line); color: var(--ink-2); transition: all .2s; }
.pill input:checked + span { background: var(--indigo); border-color: var(--indigo); color: #fff; }
.pill input:focus-visible + span { outline: 3px solid var(--indigo-300); outline-offset: 2px; }
.form-note { margin: 12px 0 0; font-size: .85rem; color: var(--muted); text-align: center; }
.form-note.error { color: #C2415B; }
.form-note.success { color: #2E7D5B; font-weight: 600; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.contact-form { position: relative; }
.btn[disabled] { opacity: .65; cursor: progress; transform: none; }

/* Footer */
.site-footer { background: #0C0B1E; color: #9D9CBC; padding: 64px 0 28px; }
.footer-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-logo { height: 34px; width: auto; margin-bottom: 16px; }
.footer-tag { max-width: 360px; font-size: .95rem; margin: 0; }
.footer-nav { display: flex; gap: 28px; flex-wrap: wrap; align-items: center; }
.footer-nav a, .footer-base a { color: #C9C8E3; font: 500 .92rem/1 var(--head); }
.footer-nav a:hover, .footer-base a:hover { color: #fff; }
.footer-base { display: flex; justify-content: space-between; padding-top: 24px; font-size: .88rem; flex-wrap: wrap; gap: 12px; }
.footer-base p { margin: 0; }

/* Reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step::after { display: none; }
  .client-grid { grid-template-columns: repeat(3, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .site-nav {
    position: fixed; inset: 76px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 24px 24px;
    transform: translateY(-120%); transition: transform .3s ease; box-shadow: 0 20px 40px -20px rgba(23,22,46,.25);
  }
  .site-nav.open { transform: none; }
  .site-nav a:not(.btn) { padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .site-nav a:not(.btn)::after { display: none; }
  .site-nav .btn { margin-top: 18px; }
  .nav-toggle { display: block; }
  .hero { padding-top: 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 16px; min-height: 0; }
  .hero-visual { max-width: 420px; }
  .why-grid, .deliv-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .expertise-grid, .persp-grid, .engage-grid { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .container { padding: 0 16px; }
  .brand img { height: 30px; }
  .card-grid, .client-grid, .steps, .field-row { grid-template-columns: 1fr; }
  .field-row { gap: 0; }
  .chip { font-size: .74rem; padding: 8px 11px 8px 10px; }
  .c3 { left: 0; } .c4 { right: 0; }
  .capability-strip { grid-template-columns: 1fr 1fr; gap: 10px 16px; justify-content: stretch; }
  .capability-strip li { font-size: .82rem; }
  .pillar { padding: 84px 22px 22px; }
  .pillar-icon { left: 22px; top: 22px; }
  .contact-form { padding: 24px 20px; }
  .deliv-list li { padding: 14px 18px 14px 54px; }
  .deliv-list li::before { left: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
}