:root {
  --dark: #191A23;
  --green: #B9FF66;
  --grey: #F3F3F3;
  --black: #000;
  --white: #fff;
  --radius: 45px;
  --gutter: 100px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 18px;
  line-height: 1.28;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, ul, figure, blockquote, fieldset { margin: 0; padding: 0; }
ul { list-style: none; }
fieldset { border: 0; }
button, input, textarea { font: inherit; color: inherit; }
address { font-style: normal; }
:focus-visible { outline: 2px solid var(--dark); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.container {
  width: 100%;
  max-width: calc(1240px + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Buttons & labels */
.btn {
  display: inline-flex; justify-content: center; align-items: center;
  padding: 19px 34px; border-radius: 14px; border: 1px solid transparent;
  font-size: 20px; line-height: 28px; text-align: center; cursor: pointer;
  transition: background-color .2s, color .2s, transform .2s;
}
.btn--dark { background: var(--dark); color: var(--white); }
.btn--dark:hover { background: #2c2e3d; }
.btn--outline { border-color: var(--dark); }
.btn--outline:hover { background: var(--dark); color: var(--white); }
.btn--green { background: var(--green); color: var(--black); }
.btn--green:hover { background: #a6f04c; }

.label {
  display: inline-block; padding: 0 7px; border-radius: 7px; background: var(--green);
}

/* Navigation */
.nav { display: flex; justify-content: space-between; align-items: center; padding-top: 60px; }
.nav__logo img { width: 220px; }
.nav__menu { display: flex; align-items: center; gap: 40px; font-size: 20px; line-height: 28px; }
.nav__menu a:not(.btn) { position: relative; }
.nav__menu a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px;
  background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform .2s;
}
.nav__menu a:not(.btn):hover::after { transform: scaleX(1); }
.nav__toggle { display: none; }

/* Hero */
.hero { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; padding-top: 70px; }
.hero__text { min-height: 515px; }
.hero__text { display: flex; flex-direction: column; align-items: flex-start; gap: 35px; max-width: 531px; }
.hero h1 { font-size: 60px; font-weight: 500; line-height: 1.28; }
.hero__text p { font-size: 20px; line-height: 28px; max-width: 498px; }
.hero__art { width: 561px; flex-shrink: 1; min-width: 0; margin: 8px 13px 0 0; }

.logos { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-top: 70px; }
.logos img { height: 48px; width: auto; filter: grayscale(1); }

/* Sections */
.section { padding-top: 140px; }
.heading { display: flex; align-items: center; gap: 40px; margin-bottom: 80px; }
.heading h2 { font-size: 40px; font-weight: 500; line-height: 1.28; flex-shrink: 0; }

/* Services */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.service {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  min-height: 310px; padding: 50px; border-radius: var(--radius);
  border: 1px solid var(--dark); box-shadow: 0 5px 0 var(--dark); background: var(--grey);
}
.service__body { display: flex; flex-direction: column; justify-content: space-between; align-self: stretch; gap: 40px; }
.service h3 { white-space: nowrap; display: flex; flex-direction: column; align-items: flex-start; font-size: 30px; font-weight: 500; line-height: 1.28; }
.service > img { width: 210px; flex-shrink: 1; min-width: 0; }
.service--green { background: var(--green); }
.service--green .label, .service--dark .label { background: var(--white); }
.service--dark { background: var(--dark); color: var(--white); }
.service--dark .label { color: var(--black); }
.service--green-label .label { background: var(--green); }

.more { display: inline-flex; align-items: center; gap: 15px; white-space: nowrap; font-size: 20px; line-height: 28px; }
.more__icon {
  display: grid; place-items: center; width: 41px; height: 41px; border-radius: 50%;
  background: var(--dark); color: var(--green); transition: transform .2s;
}
.more__icon svg { width: 20px; height: 20px; }
.more:hover .more__icon { transform: rotate(30deg); }
.service--dark .more__icon { background: var(--white); color: var(--dark); }

/* CTA */
.cta { padding-top: 123px; }
.cta__card {
  position: relative; display: flex; align-items: center; min-height: 347px;
  padding: 60px; border-radius: var(--radius); background: var(--grey);
}
.cta__text { display: flex; flex-direction: column; align-items: flex-start; gap: 26px; max-width: 500px; }
.cta__text h3 { font-size: 30px; font-weight: 500; }
.cta__art { position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 494px; max-width: none; }

/* Case studies */
.cases {
  display: flex; justify-content: space-between;
  padding: 70px 60px; border-radius: var(--radius); background: var(--dark); color: var(--white);
}
.case { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.case + .case { padding-left: 64px; border-left: 1px solid var(--white); }
.case p { max-width: 286px; }
.case__link { display: inline-flex; align-items: center; gap: 15px; font-size: 20px; line-height: 28px; color: var(--green); }
.case__link svg { width: 21px; height: 20px; transition: transform .2s; }
.case__link:hover svg { transform: translate(3px, -3px); }

/* Process */
.process { display: flex; flex-direction: column; gap: 30px; }
.step {
  padding: 41px 60px; border-radius: var(--radius); border: 1px solid var(--dark);
  box-shadow: 0 5px 0 var(--dark); background: var(--grey); transition: background-color .25s;
}
.step[open] { background: var(--green); }
.step summary { display: flex; align-items: center; gap: 25px; cursor: pointer; list-style: none; }
.step summary::-webkit-details-marker { display: none; }
.step__num { font-size: 60px; font-weight: 500; line-height: 1.28; }
.step__title { flex: 1; font-size: 30px; font-weight: 500; }
.step__icon {
  position: relative; flex-shrink: 0; width: 58px; height: 58px; border-radius: 50%;
  border: 1px solid var(--dark); background: var(--grey);
}
.step__icon::before, .step__icon::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 19px; height: 5px;
  background: var(--dark); transform: translate(-50%, -50%); transition: transform .25s;
}
.step__icon::before { width: 27px; }
.step__icon::after { width: 27px; transform: translate(-50%, -50%) rotate(90deg); }
.step[open] .step__icon::before { width: 17px; }
.step[open] .step__icon::after { transform: translate(-50%, -50%) rotate(0); width: 17px; }
.step__content { margin-top: 30px; padding-top: 30px; border-top: 1px solid var(--black); }

/* Team */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.member {
  display: flex; flex-direction: column; gap: 28px; min-height: 331px; padding: 40px 35px;
  border-radius: var(--radius); border: 1px solid var(--dark); box-shadow: 0 5px 0 var(--dark); background: var(--white);
}
.member__head {
  position: relative; display: flex; align-items: flex-end; gap: 19px;
  padding-bottom: 28px; border-bottom: 1px solid var(--black);
}
.member__photo { width: 103px; height: 103px; object-fit: contain; flex-shrink: 0; }
.member h4 { font-size: 20px; font-weight: 500; }
.member__in { position: absolute; top: 0; right: 0; transition: transform .2s; }
.member__in:hover { transform: scale(1.1); }
.team__more { display: flex; justify-content: flex-end; margin-top: 40px; }
.team__more .btn { width: 269px; }

/* Testimonials */
.slider { padding: 84px 0 53px; border-radius: var(--radius); background: var(--dark); color: var(--white); overflow: hidden; }
.slider__viewport { overflow: hidden; }
.slider__track { display: flex; gap: 50px; transition: transform .5s cubic-bezier(.4, 0, .2, 1); will-change: transform; }
.slide { flex: 0 0 606px; max-width: calc(100vw - 2 * var(--gutter) - 60px); }
.slide blockquote {
  position: relative; padding: 48px 52px; border: 1px solid var(--green); border-radius: var(--radius);
}
.slide blockquote::after {
  content: ""; position: absolute; left: 63px; bottom: -20px; width: 39px; height: 39px;
  background: var(--dark); border: solid var(--green); border-width: 0 1px 1px 0; transform: rotate(45deg);
}
.slide figcaption { margin: 48px 0 0 80px; }
.slide figcaption strong { display: block; font-size: 20px; font-weight: 500; color: var(--green); }
.slider__nav { display: flex; justify-content: space-between; align-items: center; width: min(564px, 100% - 60px); margin: 110px auto 0; }
.slider__arrow { display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 0; border-radius: 50%; background: none; color: var(--white); cursor: pointer; transition: opacity .2s, background-color .2s; }
.slider__arrow:hover:not(:disabled) { background: rgba(255, 255, 255, .1); }
.slider__arrow svg { width: 28px; height: 28px; }
.slider__arrow--prev svg { transform: rotate(180deg); }
.slider__arrow:disabled { opacity: .3; cursor: default; }
.slider__dots { display: flex; gap: 19px; }
.slider__dots button { width: 14px; height: 14px; padding: 0; border: 0; background: none; color: var(--white); cursor: pointer; transition: color .2s, transform .2s; }
.slider__dots button svg { display: block; width: 14px; height: 14px; }
.slider__dots button:hover { transform: scale(1.25); }
.slider__dots button[aria-current="true"] { color: var(--green); }

/* Contact */
.contact { position: relative; padding: 60px 100px 80px; border-radius: var(--radius); background: var(--grey); overflow: hidden; }
.form { display: flex; flex-direction: column; gap: 40px; max-width: 556px; }
.form__radios { display: flex; gap: 35px; }
.radio { display: inline-flex; align-items: center; gap: 14px; cursor: pointer; }
.radio input { position: absolute; opacity: 0; }
.radio span {
  display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid var(--black); background: var(--white);
}
.radio span::after { content: ""; width: 16px; height: 16px; border-radius: 50%; background: var(--green); transform: scale(0); transition: transform .15s; }
.radio input:checked + span::after { transform: scale(1); }
.radio input:focus-visible + span { outline: 2px solid var(--dark); outline-offset: 3px; }
.form__fields { display: flex; flex-direction: column; gap: 25px; }
.field { display: flex; flex-direction: column; gap: 5px; font-size: 16px; line-height: 28px; }
.field input, .field textarea, .subscribe input {
  width: 100%; padding: 17px 30px; border-radius: 14px; border: 1px solid var(--black);
  background: var(--white); font-size: 18px; line-height: 1.28; outline: none; transition: box-shadow .2s;
}
.field textarea { height: 190px; resize: vertical; }
.field input:focus, .field textarea:focus { box-shadow: 0 0 0 3px var(--green); }
.field .invalid { border-color: #d92d20; }
::placeholder { color: #898989; opacity: 1; }
.form__submit { width: 100%; }
.form__status { margin-top: -20px; min-height: 23px; }
.form__status:empty { display: none; }
.contact__art { position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 368px; }

/* Footer */
footer { margin-top: 140px; }
.footer { display: flex; flex-direction: column; padding: 55px 60px 50px; border-radius: var(--radius) var(--radius) 0 0; background: var(--dark); color: var(--white); }
.footer__top { display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.footer__nav { display: flex; gap: 40px; }
.footer__nav a, .footer__bottom a { text-decoration: underline; text-underline-offset: 3px; }
.footer__nav a:hover, .footer__bottom a:hover, .footer__contact a:hover { color: var(--green); }
.footer__social { display: flex; gap: 20px; }
.footer__social a { transition: transform .2s; }
.footer__social a:hover { transform: translateY(-3px); }
.footer__mid { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; margin-top: 66px; }
.footer__contact { display: flex; flex-direction: column; gap: 20px; }
.footer__contact h4 { margin-bottom: 7px; font-size: 20px; font-weight: 500; color: var(--black); }
.subscribe { display: flex; gap: 20px; padding: 58px 40px; border-radius: 14px; background: #292A32; }
.subscribe input { width: 285px; padding: 21px 35px; border-color: var(--white); background: transparent; color: var(--white); }
.subscribe input::placeholder { color: var(--white); }
.subscribe input:focus { box-shadow: 0 0 0 2px var(--green); }
.subscribe .btn { white-space: nowrap; }
.footer__bottom { display: flex; flex-wrap: wrap; gap: 10px 40px; margin-top: 50px; padding-top: 50px; border-top: 1px solid var(--white); line-height: 28px; }

/* ---------- Responsive ---------- */
@media (max-width: 1280px) {
  :root { --gutter: 60px; }
  .nav__menu { gap: 26px; }
  .hero h1 { font-size: 52px; }
  .hero__art { width: 46%; }
  .cta__art { width: 420px; }
  .case + .case { padding-left: 40px; }
  .cases { gap: 40px; }
  .footer__nav { gap: 24px; }
  .contact { padding-inline: 60px; }
}

@media (max-width: 1080px) {
  :root { --gutter: 40px; }
  .nav { position: relative; }
  .nav__toggle {
    display: flex; flex-direction: column; justify-content: center; gap: 6px;
    width: 44px; height: 44px; padding: 8px; border: 0; background: none; cursor: pointer;
  }
  .nav__toggle span { height: 3px; border-radius: 2px; background: var(--dark); transition: transform .2s, opacity .2s; }
  .nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
  .nav__menu {
    display: none; position: absolute; z-index: 10; top: calc(100% + 12px); left: var(--gutter); right: var(--gutter);
    flex-direction: column; align-items: stretch; gap: 20px; padding: 28px;
    border-radius: 24px; border: 1px solid var(--dark); box-shadow: 0 5px 0 var(--dark); background: var(--white);
  }
  .nav__menu.is-open { display: flex; }
  .services { grid-template-columns: 1fr; }
  .team { grid-template-columns: repeat(2, 1fr); }
  .cta__art { display: none; }
  .cta__text { max-width: none; }
  .cases { flex-direction: column; gap: 30px; padding: 50px; }
  .case + .case { padding: 30px 0 0; border-left: 0; border-top: 1px solid var(--white); }
  .hero__text { min-height: 0; }
  .case p { max-width: none; }
  .contact__art { display: none; }
  .form { max-width: none; }
  .footer__top { flex-wrap: wrap; }
  .footer__mid { flex-direction: column; align-items: stretch; }
  .subscribe input { flex: 1; width: auto; }
}

@media (max-width: 820px) {
  :root { --gutter: 20px; --radius: 32px; }
  body { font-size: 16px; }
  .nav { padding-top: 28px; }
  .nav__logo img { width: 160px; }
  .hero { flex-direction: column; padding-top: 40px; }
  .hero__text { display: contents; }
  .hero h1 { font-size: 43px; order: 1; }
  .hero__art { order: 2; width: 100%; margin: 0; }
  .hero__text p { order: 3; font-size: 16px; line-height: 1.5; max-width: none; }
  .hero__text .btn { order: 4; width: 100%; }
  .hero { gap: 24px; }
  .logos { flex-wrap: wrap; justify-content: center; gap: 12px 28px; padding-top: 48px; }
  .logos img { height: 34px; }
  .section { padding-top: 80px; }
  .heading { flex-direction: column; align-items: center; gap: 20px; margin-bottom: 40px; text-align: center; }
  .heading h2 { font-size: 32px; }
  .service { min-height: 0; padding: 36px 28px; }
  .service h3 { font-size: 22px; }
  .service > img { width: 36%; }
  .more { font-size: 18px; }
  .btn { font-size: 18px; }
  .cta { padding-top: 80px; }
  .cta__card { padding: 44px 28px; }
  .cta__text h3 { font-size: 26px; }
  .cta__text .btn { width: 100%; }
  .cases { padding: 40px 28px; }
  .process { gap: 20px; }
  .step { padding: 28px 24px; }
  .step summary { gap: 14px; }
  .step__num { font-size: 36px; }
  .step__title { font-size: 20px; }
  .step__icon { width: 44px; height: 44px; }
  .step__icon::before, .step__icon::after { width: 20px; height: 4px; }
  .step[open] .step__icon::before, .step[open] .step__icon::after { width: 14px; }
  .step__content { margin-top: 20px; padding-top: 20px; }
  .team { grid-template-columns: 1fr; gap: 28px; }
  .member { min-height: 0; }
  .team__more .btn { width: 100%; }
  .slider { padding: 40px 0 36px; }
  .slide { flex-basis: calc(100vw - 2 * var(--gutter) - 48px); max-width: none; }
  .slide blockquote { padding: 30px 28px; }
  .slide blockquote::after { left: 44px; }
  .slide figcaption { margin: 40px 0 0 56px; }
  .slider__track { gap: 24px; }
  .slider__nav { margin-top: 48px; }
  .slider__dots { gap: 12px; }
  .contact { padding: 40px 24px 48px; }
  .footer { padding: 40px 24px; align-items: stretch; }
  .footer__top { flex-direction: column; gap: 32px; }
  .footer__nav { flex-direction: column; align-items: center; gap: 14px; }
  .footer__mid { margin-top: 40px; }
  .footer__contact { align-items: center; text-align: center; }
  .subscribe { flex-direction: column; padding: 28px 24px; }
  .subscribe input { width: 100%; }
  .footer__bottom { flex-direction: column; align-items: center; text-align: center; margin-top: 40px; padding-top: 32px; }
  footer { margin-top: 80px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}