/* =========================================================
   KANISHK SERVICES — CORPORATE BROCHURE STYLESHEET
   Design tokens: navy/blue enterprise palette, Archivo + Inter
   ========================================================= */

:root {
  /* Color */
  --navy-950: #071226;
  --navy-900: #0B1F3D;
  --navy-800: #123163;
  --navy-700: #183D7A;
  --blue-600: #1C5FA8;
  --blue-500: #2E76C4;
  --blue-100: #E7F0FA;
  --accent-600: #B9822F;
  --accent-500: #C9932F;
  --ink: #10182B;
  --gray-700: #3D4658;
  --gray-600: #5B6472;
  --gray-400: #8792A2;
  --gray-200: #E1E6ED;
  --gray-100: #EEF1F5;
  --gray-50: #F6F8FB;
  --white: #FFFFFF;

  /* Type */
  --font-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Layout */
  --max-width: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius-sm: 3px;
  --radius-md: 6px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 320ms;
}

/* =========================================================
   RESET
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.18;
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
  color: var(--navy-900);
}
p { margin: 0 0 0.8em; color: var(--gray-700); }
p:last-child { margin-bottom: 0; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy-900);
  color: var(--white);
  padding: 12px 20px;
  z-index: 999;
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--accent-600);
  outline-offset: 3px;
}

@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;
  }
}

/* =========================================================
   LAYOUT HELPERS — COMPACT SECTIONS
   ========================================================= */
.section { padding: clamp(40px, 5vw, 64px) 0; }
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.grid-2 {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}
.grid-2-reverse { direction: rtl; }
.grid-2-reverse > * { direction: ltr; }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 10px;
}
.eyebrow-dark { color: var(--blue-600); }
.eyebrow-light { color: var(--accent-500); }

h2 { font-size: clamp(1.5rem, 2.5vw, 2.1rem); max-width: 22ch; }
.lede {
  font-size: 1.02rem;
  color: var(--gray-700);
  max-width: 62ch;
  margin-bottom: 1em;
  line-height: 1.6;
}
.lede-light { color: var(--gray-200); }

.fine-note { color: var(--gray-400); font-style: italic; font-size: 0.88rem; margin-top: 12px; }
.fine-note-light { color: rgba(255,255,255,0.6); }

.cta-inline { margin-top: 24px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
  white-space: nowrap;
}
.btn-sm { padding: 8px 16px; font-size: 0.82rem; }
.btn-block { width: 100%; }

.btn-primary { background: var(--accent-600); color: var(--white); }
.btn-primary:hover { background: #a3721f; }

.btn-outline { background: transparent; color: var(--navy-900); border-color: var(--navy-900); }
.btn-outline:hover { background: var(--navy-900); color: var(--white); }

.btn-outline-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.4); }
.btn-outline-light:hover { background: var(--white); color: var(--navy-900); }

.btn-ghost-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn-ghost-light:hover { background: rgba(255,255,255,0.1); }

/* =========================================================
   HEADER / NAVIGATION
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 31, 61, 0.95);
  backdrop-filter: blur(10px);
  transition: padding var(--dur) var(--ease), background var(--dur) var(--ease);
}
.site-header.is-scrolled { background: rgba(7, 18, 38, 0.98); }
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  transition: padding var(--dur) var(--ease);
}
.site-header.is-scrolled .header-inner { padding-top: 10px; padding-bottom: 10px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--accent-500);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--white);
  flex-shrink: 0;
}
.brand-name {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--white);
  line-height: 1.25;
}
.brand-name em { font-style: normal; font-weight: 500; font-size: 0.65rem; color: var(--gray-200); letter-spacing: 0.02em; }

.primary-nav ul { display: flex; gap: 22px; }
.nav-link {
  color: var(--gray-200);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 4px 2px;
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--accent-500);
  transition: right var(--dur) var(--ease);
}
.nav-link:hover, .nav-link.is-active { color: var(--white); }
.nav-link:hover::after, .nav-link.is-active::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 14px; }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  padding: 0;
}
.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO — COMPACT
   ========================================================= */
.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  color: var(--white);
  overflow: hidden;
}
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(115deg, rgba(7,18,38,0.94) 20%, rgba(11,31,61,0.88) 55%, rgba(11,31,61,0.7) 100%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px var(--gutter) 72px;
  width: 100%;
}
.hero .eyebrow { color: var(--accent-500); }
.hero-heading {
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  max-width: 16ch;
  color: var(--white);
  margin-bottom: 0.35em;
}
.hero-support {
  font-size: clamp(0.95rem, 1.4vw, 1.12rem);
  color: var(--gray-100);
  max-width: 56ch;
  font-weight: 500;
  margin-bottom: 0.7em;
  line-height: 1.55;
}
.hero-para {
  color: var(--gray-200);
  max-width: 56ch;
  font-size: 0.92rem;
  line-height: 1.6;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* =========================================================
   CAPABILITY STRIP
   ========================================================= */
.capability-strip {
  background: var(--navy-900);
  border-top: 1px solid rgba(255,255,255,0.06);
}
.capability-strip ul {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  justify-content: space-between;
}
.capability-strip li {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray-200);
  position: relative;
  padding-left: 16px;
}
.capability-strip li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 6px; height: 6px;
  background: var(--accent-500);
}

/* =========================================================
   FLOW DIAGRAM (Who We Are)
   ========================================================= */
.flow-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 28px clamp(16px, 3vw, 32px);
}
.flow-node {
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--navy-900);
  text-align: center;
}
.flow-node-primary {
  background: var(--navy-900);
  color: var(--white);
  border-color: var(--navy-900);
}
.flow-arrow {
  width: 2px;
  height: 20px;
  background: var(--gray-200);
  margin: 0 auto;
  position: relative;
}
.flow-arrow::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: var(--gray-200);
}

/* =========================================================
   PROCESS / IMPLEMENTATION MODEL
   ========================================================= */
.process-section { background: var(--gray-50); }
.process-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--gray-200);
  margin-top: 28px;
  counter-reset: step;
}
.process-step {
  background: var(--white);
  padding: 24px 20px;
  position: relative;
}
.step-index {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent-600);
  margin-bottom: 10px;
}
.process-step h3 { font-size: 1rem; margin-bottom: 0.3em; }
.process-step p { font-size: 0.85rem; line-height: 1.5; }

/* =========================================================
   ECOSYSTEM
   ========================================================= */
.ecosystem-diagram { margin-top: 28px; }
.ecosystem-hub {
  background: var(--navy-900);
  color: var(--white);
  text-align: center;
  padding: 28px 20px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  margin-bottom: 1px;
}
.ecosystem-hub-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}
.ecosystem-hub-sub {
  display: block;
  margin-top: 6px;
  color: var(--accent-500);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.ecosystem-branches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
}
.ecosystem-branch {
  background: var(--white);
  padding: 24px 22px;
  border-top: 3px solid var(--blue-600);
}
.branch-index {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--gray-400);
  font-size: 0.78rem;
}
.ecosystem-branch h3 { margin-top: 6px; font-size: 1.02rem; }
.branch-partner {
  font-weight: 600;
  color: var(--navy-900);
  font-size: 0.84rem;
  margin-bottom: 0.3em;
}
.ecosystem-branch p:last-child { font-size: 0.84rem; color: var(--gray-600); line-height: 1.5; }

/* =========================================================
   CARD GRIDS (Technology / Engagement / Why)
   ========================================================= */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  margin-top: 24px;
}
.service-card, .engagement-card, .why-card {
  background: var(--white);
  padding: 22px 20px;
  transition: background var(--dur) var(--ease);
}
.service-card:hover, .engagement-card:hover, .why-card:hover { background: var(--gray-50); }
.service-card h3, .engagement-card h3, .why-card h3 { font-size: 0.95rem; margin: 6px 0 0.3em; }
.service-card p, .engagement-card p, .why-card p { font-size: 0.84rem; line-height: 1.5; }
.engagement-card h3 { margin-top: 0; }

/* =========================================================
   TECH CAPABILITY COLUMNS
   ========================================================= */
.tech-capabilities { margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--gray-200); }
.tech-columns {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 16px;
}
.tech-column h4 {
  font-size: 0.78rem;
  color: var(--navy-900);
  border-bottom: 2px solid var(--accent-500);
  padding-bottom: 8px;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.tech-column li { font-size: 0.84rem; color: var(--gray-600); padding: 3px 0; }

/* =========================================================
   TAG LISTS (Workforce / Engineering)
   ========================================================= */
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 6px; }
.tag-list li {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 12px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  color: var(--navy-900);
}
.tag-list-light li { border-color: rgba(255,255,255,0.2); color: var(--gray-100); }

.section-photo { width: 100%; border-radius: var(--radius-md); object-fit: cover; aspect-ratio: 4/3; }

.workforce-section { background: var(--gray-50); }

.engineering-section { background: var(--navy-900); color: var(--gray-100); }
.engineering-section h2 { color: var(--white); }
.engineering-section p { color: var(--gray-200); }
.engineering-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.engineering-gallery img { border-radius: var(--radius-md); aspect-ratio: 3/4; object-fit: cover; }
.engineering-gallery img:first-child { margin-top: 20px; }

/* =========================================================
   OPERATIONAL / PRODUCTS GRID (flat tag grid)
   ========================================================= */
.products-section { background: var(--gray-50); }

.operational-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  margin-top: 24px;
}
.operational-grid li {
  background: var(--white);
  padding: 16px 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--navy-900);
  transition: background var(--dur) var(--ease);
}
.operational-grid li:hover { background: var(--gray-50); }

/* =========================================================
   INDUSTRIES
   ========================================================= */
.industries-section { background: var(--gray-50); }
.industries-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.industries-grid li {
  padding: 10px 16px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--navy-900);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.industries-grid li:hover { border-color: var(--accent-500); color: var(--accent-600); }

/* =========================================================
   GLOBAL DELIVERY
   ========================================================= */
.global-section {
  position: relative;
  color: var(--white);
  overflow: hidden;
}
.global-media { position: absolute; inset: 0; z-index: 0; }
.global-media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.18; }
.global-section::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--navy-950);
  z-index: 0;
}
.global-section .section-inner { position: relative; z-index: 1; }
.global-section h2 { color: var(--white); }
.region-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.region-list li {
  padding: 8px 16px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
}

/* =========================================================
   CTA / CONTACT
   ========================================================= */
.cta-section { background: var(--navy-900); color: var(--white); }
.cta-section h2 { color: var(--white); }
.contact-details { margin-top: 20px; }
.contact-details p { color: var(--gray-200); margin: 0 0 4px; font-size: 0.88rem; }
.contact-details a:hover { color: var(--accent-500); }

.contact-form {
  background: var(--white);
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--radius-md);
  color: var(--ink);
}
.contact-form h3 { margin-bottom: 16px; font-size: 1.1rem; }
.form-row { margin-bottom: 14px; display: flex; flex-direction: column; gap: 4px; }
.form-row label { font-size: 0.8rem; font-weight: 600; color: var(--navy-900); }
.form-row input, .form-row select, .form-row textarea {
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 10px 12px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--gray-50);
  color: var(--ink);
  transition: border-color var(--dur) var(--ease);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  border-color: var(--blue-600);
  background: var(--white);
}
.form-row textarea { resize: vertical; min-height: 72px; }
.form-row.has-error input, .form-row.has-error select, .form-row.has-error textarea { border-color: #C0392B; }
.form-error { font-size: 0.78rem; color: #C0392B; min-height: 0.9em; }
.form-success {
  margin-top: 12px;
  padding: 12px 14px;
  background: #E9F6EE;
  border: 1px solid #BFE3CC;
  color: #1E6B3B;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer { background: var(--navy-950); color: var(--gray-200); }
.footer-top {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px var(--gutter) 36px;
  display: grid;
  grid-template-columns: 1.1fr 2fr;
  gap: 36px;
}
.footer-brand .brand-mark { margin-bottom: 12px; }
.footer-brand-name { font-family: var(--font-display); font-weight: 700; color: var(--white); font-size: 1.05rem; line-height: 1.3; }
.footer-tagline { color: var(--gray-400); font-size: 0.84rem; margin-top: 8px; }

.footer-columns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.footer-col h4 { color: var(--white); font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 14px; }
.footer-col li { margin-bottom: 8px; font-size: 0.84rem; }
.footer-col a { color: var(--gray-400); transition: color var(--dur) var(--ease); }
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-bottom p, .footer-bottom { font-size: 0.78rem; }
.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--gray-400);
}
.footer-legal { display: flex; gap: 18px; }
.footer-legal a:hover { color: var(--white); }

/* =========================================================
   BACK TO TOP
   ========================================================= */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--white);
  border: none;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  box-shadow: 0 4px 14px rgba(7,18,38,0.25);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.back-to-top:hover { background: var(--accent-600); }
.back-to-top[hidden] { display: none; }

/* =========================================================
   SCROLL REVEAL
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 400ms var(--ease), transform 400ms var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .primary-nav ul { gap: 16px; }
  .process-list { grid-template-columns: repeat(3, 1fr); }
  .tech-columns { grid-template-columns: repeat(3, 1fr); }
  .footer-columns { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .primary-nav {
    position: fixed;
    inset: 0 0 0 auto;
    top: 0;
    width: min(300px, 82vw);
    height: 100vh;
    background: var(--navy-950);
    padding: 80px 28px 28px;
    transform: translateX(100%);
    transition: transform var(--dur) var(--ease);
    z-index: 99;
  }
  .primary-nav.is-open { transform: translateX(0); }
  .primary-nav ul { flex-direction: column; gap: 18px; }
  .nav-link { font-size: 1rem; }
  .menu-toggle { display: flex; }
  .header-actions .btn-primary.btn-sm { display: none; }

  .grid-2, .grid-2-reverse { grid-template-columns: 1fr; direction: ltr; }
  .grid-2-reverse > *:first-child { order: 2; }

  .process-list { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .ecosystem-branches { grid-template-columns: 1fr; }
  .operational-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-columns { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .footer-columns { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .hero-inner { padding-top: 90px; padding-bottom: 56px; }
  .hero { min-height: 60vh; }
  .process-list { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .operational-grid { grid-template-columns: 1fr; }
  .tech-columns { grid-template-columns: 1fr; }
  .footer-columns { grid-template-columns: 1fr; }
  .capability-strip ul { justify-content: flex-start; gap: 8px 20px; }
  .engineering-gallery { grid-template-columns: 1fr; }
  .engineering-gallery img:first-child { margin-top: 0; }
  .btn { width: 100%; }
  .hero-ctas, .cta-row { flex-direction: column; }
  .hero-ctas .btn, .cta-row .btn { width: 100%; }
  .section { padding: clamp(32px, 5vw, 44px) 0; }
}