:root {
  --navy: #223a66;
  --navy-deep: #172b50;
  --primary: #e12454;
  --text: #6f8298;
  --heading: #202c40;
  --soft: #f4f8fb;
  --white: #fff;
  --line: #e5ebf1;
  --container: 1200px;
  --shadow: 0 18px 55px rgba(29, 52, 88, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.icon-library, .skip-link:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.icon { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.section { padding: 100px 0; }
.skip-link:focus { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 10px 16px; background: var(--white); color: var(--navy); box-shadow: var(--shadow); }

/* Contact bar and main navigation */
.topbar { color: rgba(255,255,255,.86); background: var(--navy-deep); font-size: 13px; }
.topbar-inner, .topbar-contact { display: flex; align-items: center; }
.topbar-inner { min-height: 42px; justify-content: space-between; gap: 20px; }
.topbar-contact { gap: 28px; }
.topbar-contact a { display: inline-flex; align-items: center; gap: 8px; }
.topbar-contact .icon { width: 15px; height: 15px; color: #f15a78; }
.topbar-note { color: rgba(255,255,255,.65); }
.site-header { position: sticky; z-index: 50; top: 0; background: rgba(255,255,255,.97); box-shadow: 0 2px 12px rgba(24,43,76,.06); }
.header-inner { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { width: 188px; height: auto; }
.primary-nav { display: flex; align-items: center; gap: clamp(16px, 2.2vw, 32px); color: var(--heading); font-size: 14px; font-weight: 700; }
.nav-link { position: relative; padding: 32px 0; transition: color .2s ease; }
.nav-link::after { position: absolute; right: 0; bottom: 22px; left: 0; height: 2px; background: var(--primary); content: ""; transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.nav-link:hover, .nav-link.is-current { color: var(--primary); }
.nav-link:hover::after, .nav-link.is-current::after { transform: scaleX(1); }
.nav-dropdown { position: relative; display: flex; align-items: center; gap: 3px; }
.submenu-toggle { display: grid; width: 22px; height: 36px; place-items: center; padding: 0; border: 0; color: currentColor; background: transparent; font-size: 17px; line-height: 1; }
.submenu-toggle:hover, .submenu-toggle[aria-expanded="true"] { color: var(--primary); }
.submenu { position: absolute; z-index: 60; top: calc(100% - 14px); left: -16px; display: none; width: 190px; padding: 8px; border-top: 2px solid var(--primary); background: var(--white); box-shadow: 0 12px 28px rgba(16,28,55,.15); }
.nav-dropdown:hover .submenu, .nav-dropdown:focus-within .submenu, .nav-dropdown.is-open .submenu { display: flex; flex-direction: column; }
.submenu-link { padding: 9px 11px; color: var(--heading); font-size: 13px; font-weight: 600; transition: color .2s ease, background .2s ease; }
.submenu-link:hover, .submenu-link:focus-visible { color: var(--primary); background: var(--soft); }
.nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 0 22px; border: 0; border-radius: 3px; font-size: 13px; font-weight: 700; letter-spacing: .02em; transition: background .2s ease, color .2s ease, transform .2s ease; }
.nav-cta { color: var(--white); background: var(--primary); }
.nav-cta:hover, .button-primary:hover { background: var(--navy); transform: translateY(-2px); }
.nav-cta .icon, .button .icon { width: 16px; height: 16px; }
.menu-toggle { display: none; }

/* Hero slider */
.hero { position: relative; height: 600px; min-height: 540px; overflow: hidden; background: #edf3f8; }
.hero-slides { position: absolute; inset: 0; overflow: hidden; }
.hero-track { display: flex; width: 100%; height: 100%; transition: transform .8s cubic-bezier(.25,.46,.45,.94); will-change: transform; }
.hero-slide {
  position: relative;
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  background-position: center;
  background-size: cover;
  transform: none;
}
.hero-slide.is-active .eyebrow { animation: hero-enter-up 1s .3s both; }
.hero-slide.is-active h1, .hero-slide.is-active h2 { animation: hero-enter-down 1.2s both; }
.hero-slide.is-active .hero-copy { animation: hero-enter-down 1.2s .3s both; }
.hero-slide.is-active .hero-content > .button { animation: hero-enter-down 1.2s .5s both; }
@keyframes hero-enter-down { from { opacity: 0; transform: translateY(-200px); } to { opacity: 1; transform: translateY(0); } }
@keyframes hero-enter-up { from { opacity: 0; transform: translateY(200px); } to { opacity: 1; transform: translateY(0); } }
.hero-slide--one { background-image: linear-gradient(90deg, rgba(246,249,252,.18), rgba(246,249,252,0)), url("assets/hero-1.jpg"); }
.hero-slide--two { background-image: linear-gradient(90deg, rgba(246,249,252,.16), rgba(246,249,252,0)), url("assets/hero-2.jpg"); }
.hero-slide--three { background-image: linear-gradient(90deg, rgba(246,249,252,.12), rgba(246,249,252,0)), url("assets/hero-3.jpg"); }
.hero-slide--four { background-image: linear-gradient(90deg, rgba(246,249,252,.12), rgba(246,249,252,0)), url("assets/hero-4.jpg"); }
.hero-content { position: relative; z-index: 2; padding-top: 30px; padding-bottom: 50px; color: var(--heading); }
.eyebrow {
    margin: 0 0 13px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
    text-transform: uppercase;
    font-family: roboto;
}
.hero h1, .hero h2 {
    max-width: 620px;
    margin: 0;
    color: var(--navy);
    font-size: clamp(42px, 5.1vw, 68px);
    font-weight: 600;
    letter-spacing: 0px;
    line-height: 1.08;
    font-family: Roboto;
}
.hero-copy { max-width: 520px; margin: 23px 0 30px; color: #65768b; font-size: 17px; line-height: 1.8; }
.button-primary { color: var(--white); background: var(--primary); }
.hero-controls { position: absolute; z-index: 4; inset: 0; pointer-events: none; }
.hero-arrow { position: absolute; top: 50%; display: grid; width: 40px; height: 52px; place-items: center; padding: 0; border: 0; color: rgba(255,255,255,.82); background: transparent; opacity: .78; transform: translateY(-50%); transition: opacity .25s ease, transform .25s ease; pointer-events: auto; }
.hero-arrow--previous { left: 15px; }
.hero-arrow--next { right: 15px; }
.hero-arrow .icon { width: 32px; height: 32px; stroke-width: 1.7; }
.hero-arrow:hover, .hero-arrow:focus-visible { color: var(--white); background: transparent; opacity: 1; transform: translateY(-50%) scale(1.12); }
.testimonial-control { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(34,58,102,.2); border-radius: 50%; color: var(--navy); background: rgba(255,255,255,.78); font-size: 19px; transition: background .2s, color .2s; }
.testimonial-control:hover { color: var(--white); background: var(--navy); }

/* Service cards */
.services { position: relative; z-index: 5; padding-top: 0; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: -95px -10px 0; }
.service-card { min-height: 345px; margin: 0 10px; padding: 40px 30px; border-radius: 15px; background: var(--white); box-shadow: 0 0 30px rgba(0,42,106,.1); animation: service-rise .75s ease both; }
.service-card:nth-child(1) { animation-delay: .1s; }
.service-card:nth-child(2) { animation-delay: .3s; }
.service-card:nth-child(3) { animation-delay: .5s; }
@keyframes service-rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.service-icon { display: inline-flex; width: 65px; height: 65px; align-items: center; justify-content: center; margin: 0 0 20px; color: var(--navy); }
.service-icon .icon { width: 50px; height: 50px; stroke-width: 1.7; transition: color .3s ease, transform .4s ease; }
.service-card:hover .service-icon .icon { color: var(--primary); transform: translateY(-4px); }
.service-kicker { display: block; margin: 0 0 5px; color: var(--text); font-size: 15px; font-weight: 400; }
.service-card h2 { margin: 0 0 15px; color: var(--navy); font-size: 23px; line-height: 1.3; }
.service-card > p:not(.service-kicker) { margin: 0 0 22px; font-size: 15px; }
.service-button { display: inline-flex; align-items: center; gap: 10px; min-height: 40px; padding: 8px 20px; border-radius: 24px; color: var(--white); background: var(--navy); font-size: 13px; font-weight: 700; transition: background .25s ease, transform .25s ease; }
.service-button .icon { width: 15px; height: 15px; }
.service-button:hover { background: var(--primary); transform: translateY(-2px); }

/* About */
.about { padding: 54px 0 88px; }
.about-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: center; gap: 24px; }
.about-img { position: relative; overflow: hidden; border-radius: 5px; }
.about-img::before { position: absolute; z-index: 2; top: 50%; left: 50%; width: 0; height: 0; border-radius: 50%; background: rgba(255,255,255,.2); content: ""; opacity: 0; transform: translate(-50%, -50%); pointer-events: none; }
.about-img:hover::before { animation: about-image-ripple .75s ease; }
@keyframes about-image-ripple { 0%, 40% { opacity: 1; } 100% { width: 120%; height: 120%; opacity: 0; } }
.about-img img { display: block; width: 100%; height: auto; border-radius: 5px; box-shadow: 0 0 30px rgba(0,42,106,.1); }
.about-img .about-image-spaced { margin-top: 24px; }
.about-copy { padding-left: 16px; }
.about-copy h2, .request-content h2, .section-heading h2 { margin: 0 0 20px; color: var(--navy); font-size: clamp(32px, 3.5vw, 44px); font-weight: 800; letter-spacing: -.035em; line-height: 1.18; }
.about-copy h2 { margin-bottom: 24px; font-size: clamp(32px, 3.1vw, 40px); font-weight: 600; letter-spacing: -.02em; line-height: 1.22; }
.about-copy p { margin: 24px 0 48px; line-height: 1.8; }
.about-button { min-height: 44px; border-radius: 24px; }
.about-reveal { transition: opacity .8s ease, transform .8s ease; }
.js-ready .about-reveal { opacity: 0; }
.js-ready .about-reveal--left { transform: translateX(-28px); }
.js-ready .about-reveal--right { transform: translateX(28px); }
.js-ready .about-reveal.is-visible { opacity: 1; transform: translateX(0); }
.about-reveal--delay-2 { transition-delay: .2s; }

/* Statistics band */
.stats { padding: 54px 0; color: var(--white); background: var(--navy); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { display: grid; grid-template-columns: 52px 1fr; align-items: center; column-gap: 14px; padding: 8px 24px; border-right: 1px solid rgba(255,255,255,.18); }
.stat:first-child { padding-left: 0; }
.stat:last-child { padding-right: 0; border-right: 0; }
.stat > .icon { grid-row: span 2; width: 42px; height: 42px; color: #f15a78; }
.stat strong { color: var(--white); font-size: 32px; line-height: 1.1; }
.stat span { color: rgba(255,255,255,.7); font-size: 13px; }

/* Request form */
.request { background: var(--soft); }
.request-panel { display: grid; grid-template-columns: .88fr 1.12fr; min-height: 560px; background: var(--white); box-shadow: var(--shadow); }
.request-image { position: relative; min-height: 440px; overflow: hidden; background: var(--navy); }
.request-image > img { width: 100%; height: 100%; min-height: 440px; object-fit: cover; }
.request-image::after { position: absolute; inset: 45% 0 0; background: linear-gradient(transparent, rgba(20,39,72,.82)); content: ""; }
.request-image-caption { position: absolute; z-index: 1; right: 30px; bottom: 28px; left: 30px; display: grid; color: var(--white); }
.request-image-caption span { font-size: 13px; }
.request-image-caption strong { font-size: 25px; }
.request-content { padding: clamp(32px, 5vw, 64px); }
.request-content h2 { margin-bottom: 12px; }
.request-intro { margin: 0 0 24px; }
.quote-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.quote-form label { display: grid; gap: 6px; color: var(--heading); font-size: 12px; font-weight: 700; }
.quote-form label span { text-transform: uppercase; letter-spacing: .04em; }
.quote-form input, .quote-form textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 2px; outline: 0; color: var(--heading); background: #fff; font-size: 14px; font-weight: 400; }
.quote-form input:focus, .quote-form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(225,36,84,.1); }
.quote-form textarea { resize: vertical; }
.form-message, .quote-form button, .form-status { grid-column: 1 / -1; }
.quote-form button { justify-self: start; }
.form-status { margin: -7px 0 0; color: #8492a4; font-size: 12px; }
.form-status.is-submitted { color: #26764a; }

/* Testimonials */
.testimonials { background: var(--white); }
.section-heading { max-width: 720px; margin: 0 auto 43px; text-align: center; }
.section-heading h2 { margin-bottom: 12px; }
.section-heading h2 span { color: var(--primary); }
.section-heading p:last-child { max-width: 620px; margin: 0 auto; }
.testimonial-shell { display: grid; grid-template-columns: 42px minmax(0, 1fr) 42px; align-items: center; gap: 16px; }
.testimonial-viewport { overflow: auto; scrollbar-width: none; scroll-behavior: smooth; scroll-snap-type: x mandatory; }
.testimonial-viewport::-webkit-scrollbar { display: none; }
.testimonial-track { display: flex; gap: 20px; }
.testimonial-card { flex: 0 0 calc((100% - 40px) / 3); min-height: 270px; padding: 26px; border: 1px solid var(--line); background: var(--white); scroll-snap-align: start; }
.testimonial-person { display: flex; align-items: center; gap: 14px; margin-bottom: 17px; }
.testimonial-person img { width: 62px; height: 62px; border-radius: 50%; object-fit: cover; }
.testimonial-person h3 { margin: 0; color: var(--heading); font-size: 16px; }
.testimonial-person p { margin: 2px 0 0; font-size: 12px; }
.rating { margin-bottom: 12px; color: #f5a623; letter-spacing: 3px; }
.testimonial-card > p { margin: 0; font-size: 14px; line-height: 1.75; }
.testimonial-control { width: 40px; height: 40px; background: var(--white); }

/* Partner logo ticker */
.partners { overflow: hidden; padding-top: 82px; background: var(--soft); }
.section-heading--compact { margin-bottom: 35px; }
.partner-marquee { overflow: hidden; width: 100%; }
.partner-track { display: flex; width: max-content; animation: partner-scroll 34s linear infinite; will-change: transform; }
.partner-group { display: flex; flex: 0 0 auto; align-items: center; gap: 28px; padding-right: 28px; }
.partner-group img { width: 142px; height: 142px; object-fit: contain; opacity: .83; transition: opacity .2s, transform .2s; }
.partner-group img:hover { opacity: 1; transform: scale(1.05); }
.partner-marquee:hover .partner-track, .partner-marquee:focus-within .partner-track { animation-play-state: paused; }
@keyframes partner-scroll { to { transform: translateX(-50%); } }

/* Footer */
.site-footer { color: rgba(255,255,255,.68); background: #172b50; }
.footer-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr 1.25fr; gap: 50px; padding-top: 72px; padding-bottom: 60px; }
.brand--footer { padding: 8px 12px; background: var(--white); }
.brand--footer img { width: 158px; }
.footer-about > p { max-width: 290px; margin: 20px 0; font-size: 14px; }
.footer-column { display: flex; flex-direction: column; align-items: flex-start; gap: 11px; font-size: 14px; }
.footer-column h2 { margin: 0 0 10px; color: var(--white); font-size: 18px; }
.footer-column > a:hover { color: var(--white); }
.social-links { display: flex; gap: 8px; }
.social-links a { display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; color: var(--white); font-size: 13px; font-weight: 700; }
.social-links a:hover { border-color: var(--primary); background: var(--primary); }
.footer-contact p { display: flex; align-items: flex-start; gap: 12px; margin: 0; }
.footer-contact .icon { color: #f15a78; }
.footer-contact small { color: rgba(255,255,255,.48); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; }
.footer-bottom .container { display: flex; min-height: 55px; align-items: center; justify-content: space-between; gap: 20px; }
.footer-bottom a:hover { color: var(--white); }

@media (max-width: 1000px) {
  .primary-nav { gap: 18px; }
  .nav-link { font-size: 13px; }
  .nav-cta { padding-inline: 15px; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 32px; }
  .service-card:last-child { grid-column: 1 / -1; }
  .about-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
  .about-copy { grid-column: 1 / -1; padding: 12px 0 0; }
  .stat { padding-inline: 14px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 70px; }
  .container { width: min(var(--container), calc(100% - 36px)); }
  .section { padding: 72px 0; }
  .topbar-note { display: none; }
  .topbar-inner { min-height: 38px; }
  .topbar-contact { gap: 16px; font-size: 11px; }
  .header-inner { min-height: 70px; }
  .brand img { width: 158px; }
  .menu-toggle { display: flex; width: 42px; height: 42px; flex-direction: column; justify-content: center; gap: 5px; padding: 9px; border: 0; border-radius: 3px; background: var(--primary); }
  .menu-toggle span { display: block; width: 100%; height: 2px; background: var(--white); transition: transform .2s, opacity .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .primary-nav { position: absolute; top: 100%; right: 0; left: 0; display: none; align-items: stretch; gap: 0; padding: 8px 18px 18px; background: var(--white); box-shadow: 0 12px 20px rgba(24,43,76,.12); }
  .primary-nav.is-open { display: flex; flex-direction: column; }
  .nav-link { padding: 12px 4px; border-bottom: 1px solid var(--line); font-size: 14px; }
  .nav-link::after { display: none; }
  .nav-dropdown { display: grid; grid-template-columns: 1fr 42px; gap: 0; border-bottom: 1px solid var(--line); }
  .nav-dropdown .nav-link { border-bottom: 0; }
  .submenu-toggle { grid-column: 2; grid-row: 1; justify-self: end; width: 42px; height: 44px; }
  .submenu-toggle span { transition: transform .2s ease; }
  .submenu-toggle[aria-expanded="true"] span { transform: rotate(180deg); }
  .submenu { position: static; grid-column: 1 / -1; width: auto; padding: 0 0 8px 13px; border: 0; background: transparent; box-shadow: none; }
  .nav-dropdown:hover:not(.is-open) .submenu { display: none; }
  .submenu-link { padding: 9px 12px; border-left: 2px solid var(--line); }
  .nav-cta { align-self: flex-start; margin-top: 14px; }
  .hero { height: 570px; min-height: 0; }
  .hero-slide { background-position: 61% center; }
  .hero-content { padding-bottom: 55px; }
  .hero h1, .hero h2 { max-width: 480px; font-size: clamp(38px, 9vw, 54px); }
  .hero-copy { max-width: 420px; font-size: 15px; }
  .service-grid { grid-template-columns: 1fr; gap: 16px; margin: 24px 0 0; }
  .service-card, .service-card:last-child { grid-column: auto; min-height: 0; margin: 0; padding: 30px; }
  .about { padding-top: 62px; }
  .about-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
  .about-copy { padding-top: 8px; }
  .stats { padding: 35px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 22px; }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(3) { padding-left: 0; }
  .request-panel { grid-template-columns: 1fr; }
  .request-image, .request-image > img { min-height: 300px; max-height: 360px; }
  .request-content { padding: 34px 24px; }
  .testimonial-shell { grid-template-columns: 34px minmax(0, 1fr) 34px; gap: 8px; }
  .testimonial-card { flex-basis: 100%; min-height: 0; }
  .testimonial-control { width: 34px; height: 34px; }
  .partners { padding-top: 62px; }
  .partner-group { gap: 14px; padding-right: 14px; }
  .partner-group img { width: 112px; height: 112px; }
  .partner-track { animation-duration: 26s; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 35px 22px; padding-top: 55px; }
}
@media (max-width: 480px) {
  .topbar-contact { justify-content: space-between; width: 100%; }
  .topbar-contact a { gap: 5px; }
  .hero { height: 540px; }
  .hero-slide { background-position: 65% center; }
  .hero h1, .hero h2 { font-size: 39px; }
  .hero-copy { max-width: 310px; }
  .hero-arrow--previous { left: 4px; }
  .hero-arrow--next { right: 4px; }
  .hero-arrow { width: 32px; height: 44px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-copy { grid-column: auto; padding: 12px 0 0; }
  .stats-grid { column-gap: 10px; }
  .stat { grid-template-columns: 35px 1fr; column-gap: 8px; padding: 5px 7px; }
  .stat > .icon { width: 30px; height: 30px; }
  .stat strong { font-size: 25px; }
  .stat span { font-size: 11px; }
  .quote-form { grid-template-columns: 1fr; }
  .form-message, .quote-form button, .form-status { grid-column: auto; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom .container { align-items: flex-start; justify-content: center; flex-direction: column; padding-block: 14px; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .hero-track { transition-duration: .01ms !important; }
}

/* Floating back-to-top control, matching demo01. */
.back-to-top {
  position: fixed;
  z-index: 99;
  right: 2rem;
  bottom: 1rem;
  display: grid;
  width: 48px;
  height: 48px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: var(--white);
  background: var(--primary);
  box-shadow: 0 5px 18px rgba(32, 44, 64, .2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .3s ease, transform .3s ease, background-color .25s ease;
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: var(--navy-deep); }
.back-to-top:focus-visible { outline: 3px solid var(--navy); outline-offset: 3px; }
.back-to-top .icon { width: 20px; height: 20px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
@media (max-width: 600px) {
  .back-to-top { right: 16px; bottom: 16px; width: 44px; height: 44px; }
}