@import url('https://fonts.googleapis.com/css2?family=Roboto:wdth,wght@75..100,100..900&display=swap');

:root {
  --green: #5FD900;
  --black: #000;
  --white: #ffff;
  --darkgrey: #989898;
  --mediumgrey: #D9D9D9;
  --lightgrey: #f4f4f4;
  --red: #E10004;
  --gradientgreen: linear-gradient(90deg, #0FD376 0, #88E719 100%);
  --gradientgreen-hover: linear-gradient(-90deg, #0FD376 0, #88E719 100%);
}
* {
  padding: 0;
  margin: 0;
  font: inherit;
  outline: none;
  text-decoration: none;
  font-family: 'Roboto', Verdana, Geneva, Tahoma, sans-serif;
  box-sizing: border-box;
}
html, body {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  overflow-y: auto;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  font: 400 18px/21px Roboto;
}
input::placeholder,
input::-moz-placeholder,
input::-webkit-input-placeholder {
  color: var(--placeholder);
}
h1 {
  font: 600 72px/76px Roboto;
}
h2 {
  font: 500 60px/64px Roboto;
}
h3 {
  font: 500 30px/35px Roboto;
}
h4 {
  font: 500 24px/28px Roboto;
}
h5 {
  font: 500 14px/16px Roboto;
}
h6 {
  font: 400 14px/16px Roboto;
}
button {
  font: 700 18px/21px Roboto;
}
@media screen and (max-width: 768px) {
  html, body {
    font: 400 16px/19px Roboto;
  }
  button {
    font: 500 16px/19px Roboto;
  }
  h1 {
    font: 600 40px/44px Roboto;
  }
  h2 {
    font: 500 32px/36px Roboto;
  }
  h3 {
    font: 500 22px/26px Roboto;
  }
  h4 {
    font: 500 18px/21px Roboto;
  }
  h5 {
    font: 500 12px/14px Roboto;
  }
  h6 {
    font: 400 12px/14px Roboto;
  }
}

article {
  width: 100%;
  max-width: 1336px;
  padding: 0 12px;
  margin: 0 auto;
}

button {
  background: var(--gradientgreen);
  border-radius: 60px;
  padding: 14px 24px;
  display: flex;
  gap: 20px;
  align-items: center;
  border: none;
  outline: none;
  cursor: pointer;
  transition: all .3s ease;
}
button:hover {
  background: var(--gradientgreen-hover);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px;
  border-radius: 60px;
  margin: 28px -22px;
  top: 0;
  transition: top 0.3s ease;
  z-index: 99;
}
header button {
  padding: 10px 24px;
}
header form {
  visibility: hidden;
}
header.sticky {
  position: sticky;
  top: 28px;
  box-shadow: 0 0 14px 0 rgba(0, 0, 0, 0.08);
  background-color: var(--white);
}
header.sticky form {
  visibility: visible;
}
.about {
  display: flex;
  align-items: center;
  gap: 40px;
}
.about span {
  height: 36px;
  width: 1px;
  background-color: var(--mediumgrey);
}
.about h4 {
  color: var(--green);
}
.about img {
  height: 36px;
}

form {
  display: flex;
  gap: 16px;
}
form fieldset {
  display: flex;
  border: none;
  background: var(--white);
  border-radius: 60px;
}
form fieldset input {
  background: transparent;
  border: none;
  padding: 12px 24px;
  border-radius: 60px;
}
header form fieldset {
  background: var(--lightgrey);
}

main {
  background-image: url(/drweb/extended/banner.webp);
  background-size: cover;
  padding: 40px 48px;
  border-radius: 60px;
}
main h1 {
  padding-bottom: 28px;
  width: 520px;
}
.os__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 0 100px;
}
.os__list__divider {
  height: 44px;
  width: 1px;
  background: var(--darkgrey);
}
.os__list__plus {
  width: 20px;
  height: 20px;
  position: relative;
}
.os__list__eq {
  width: 20px;
  height: 12px;
  position: relative;
}
.os__list__plus:before,
.os__list__eq:before,
.os__list__eq:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--black);
}
.os__list__plus:before {
  left: 0;
  top: calc(50% - 1px);
}
.os__list__plus:after {
  content: '';
  position: absolute;
  height: 100%;
  width: 2px;
  background: var(--black);
  left: calc(50% - 1px);
  top: 0;
}
.os__list__eq:before {
  left: 0;
  top: 0;
}
.os__list__eq:after {
  left: 0;
  bottom: 0;
}
.os__list__price {
  display: flex;
  align-items: center;
  gap: 12px;
}
.os__list__price h1 {
  display: none;
}
.os__list li {
  text-align: center;
  position: relative;
  line-height: 0;
}
.os__list li img {
  width: 60px;
  height: 60px;
  object-fit: none;
}
.os__list h5 {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
}
.main__footer {
  padding: 36px 0 0;
  display: flex;
  gap: 8px;
  flex-direction: column;
  color: var(--white);
}
.main__footer a {
  color: inherit;
  text-decoration: underline;
  transition: all 0.3s ease;
}
.main__footer a:hover {
  color: var(--green);
}
.product {
  text-align: center;
  background-image: url(/drweb/extended/bg-icons.svg);
  background-repeat: no-repeat;
  background-position: center;
  padding: 234px 0 210px;
}
.product h3 {
  margin: 0 auto 44px;
  max-width: 760px;
}
.product h4 {
  margin: 0 auto;
  color: var(--darkgrey);
  max-width: 632px;
}
.guards h2 {
  max-width: 860px;
  text-align: center;
  margin: 0 auto;
}
.system h2 {
  max-width: 860px;
  text-align: center;
  margin: 0 auto;
}
.guards__list {
  padding: 40px 0 120px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
  list-style: none;
  background-image: url(/drweb/extended/line.svg);
  background-repeat: no-repeat;
  background-position: center;
}
.guards__list li {
  border-radius: 30px;
  background: rgba(244, 244, 244, 0.8);
  backdrop-filter: blur(1px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px;
  width: 416px;
}
.guards__list li div {
  display: flex;
  gap: 24px;
  align-items: center;
}
.guards__list li img,
.guards__list li span {
  display: inline-block;
  width: 88px;
  flex: 0 0 auto;
}
.guards__list li h6 {
  color: var(--darkgrey);
}
.system__list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 40px 52px 0;
  max-width: 1200px;
  margin: 0 auto;
}
.system__list details {
  background: var(--lightgrey);
  border-radius: 42px;
}
.system__list summary {
  padding: 16px 28px;
  display: flex;
  gap: 32px;
  border-radius: 42px;
  appearance: none;
  align-items: center;
  position: relative;
  transition: all 0.3s ease;
  background-color: transparent;
  cursor: pointer;
}
.system summary:hover {
  background-color: var(--mediumgrey);
}
.system__list summary:after {
  content: '';
  position: absolute;
  border-top: 10px solid var(--mediumgrey);
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  transition: all 0.3s ease;
  right: 36px;
  top: 36px;
}
.system__list summary:hover:after {
  border-top-color: var(--darkgrey);
}
.system__list details[open] summary:after {
  transform: rotate(270deg);
}
.system__list summary img {
  width: 52px;
  height: 52px;
  object-fit: none;
}
.system__list details > div {
  padding: 32px 112px 52px;
  color: var(--darkgrey);
}
.system__list details ul {
  list-style: none;
  padding: 48px 0 0;
}
.system__list details li {
  padding: 0 0 32px;
  display: flex;
  gap: 32px;
}
.system__list details li h6 {
  flex: 0 0 304px;
}
.system__list details li p {
  color: var(--black);
}
footer {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 56px;
  display: flex;
  justify-content: space-between;
}
footer div {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
footer div div:has(h6) {
  flex-direction: column;
  gap: 12px;
}
footer div div:has(a) {
  flex-direction: row;
  gap: 60px;
}
footer h6 {
  color: var(--darkgrey);
  transition: all 0.3s ease;
}
footer a:hover h6 {
  color: var(--black);
  text-decoration: underline;
}
footer a svg {
  width: 16px;
}
footer a:has(svg) {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  color: var(--black);
  transition: all 0.3s ease;
}
footer a:has(svg):hover {
  color: var(--green);
  text-decoration: none;
}

@media screen and (max-width: 1380px) {
  header.sticky {
    margin: 28px 0;
  }
}
@media screen and (max-width: 1156px) {
  header {
    padding: 16px;
  }
  header form fieldset input {
    padding: 12px;
  }
  .about {
    gap: 16px;
  }
  .about img {
    height: 28px;
  }
  .product {
    background-size: contain;
  }
}
@media screen and (max-width: 1024px) {
  header form button[type="submit"] {
    font-size: 0;
    gap: 0;
    padding: 10px 17px;
  }
  .system__list details li h6 {
    flex: 0 0 240px;
  }
  .system__list details > div {
    padding: 32px 80px 52px;
  }
  .system__list summary {
    padding: 16px 24px;
    gap: 20px;
  }
}
@media screen and (max-width: 864px) {
  header.sticky .about {
    display: none;
  }
  header.sticky .form {
    width: 100%;
  }
  header form fieldset,
  header form fieldset input {
    flex: 1 1 auto;
  }
}
@media screen and (max-width: 768px) {
  .about {
    justify-content: center;
    flex: 1 1 auto;
  }
  article {
    padding: 0;
  }
  button {
    padding: 14px 20px;
    gap: 12px;
  }
  header {
    padding: 12px 16px;
    margin: 0;
    transition: none;
  }
  header .form {
    width: 0;
  }
  header.sticky {
    margin: 0;
    top: calc(100% - 96px);
    border-radius: 0;
    padding: 20px 16px;
  }
  .form {
    width: 100%;
  }
  form {
    gap: 4px;
  }
  form fieldset,
  form fieldset input {
    flex: 1 1 auto;
  }
  form fieldset input {
    padding: 12px 20px;
    width: 20px;
  }
  main {
    padding: 32px 16px 16px;
    border-radius: 0;
    background-position: top center;
    background-image: url(/drweb/extended/banner-mob.webp);
    height: calc(100vh - 80px);
    justify-content: space-between;
    display: flex;
    flex-direction: column;
  }
  main h1 {
    text-align: center;
    padding-bottom: 12px;
    width: 100%;
  }
  form button[type="submit"] {
    font-size: 0;
    gap: 0;
    padding: 10px 17px;
  }
  .os__list {
    gap: 0;
    padding: 0;
    justify-content: center;
  }
  .os__list li img {
    transform: scale(0.74);
  }
  .os__list__plus {
    width: 12px;
    height: 12px;
    flex: 0 0 12px;
  }
  .os__list__eq {
    width: 12px;
    height: 8px;
    flex: 0 0 12px;
  }
  .os__list__price {
    flex-direction: column;
    gap: 0;
    margin-left: 7px;
  }
  .os__list__price h1 {
    display: block;
    padding: 0;
  }
  .os__list__price h3 {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    white-space: nowrap;
  }
  .os__list__price h2 {
    display: none;
  }
  .main__footer {
    padding: 14px 0 0;
    gap: 12px;
    text-align: center;
  }
  .product {
    padding: 149px 16px 100px;
    background-image: url(/drweb/extended/bg-icons-mob.svg);
    background-position: center 30%;
  }
  .product h3 {
    margin: 0 auto 56px;
  }
  .guards__list {
    padding: 36px 16px 100px;
    gap: 16px;
    flex-wrap: nowrap;
    overflow: auto;
    scroll-snap-type: x mandatory;
    justify-content: flex-start;
  }
  .guards__list li {
    flex: 0 0 calc(100vw - 48px);
    scroll-snap-align: start;
    scroll-margin: 10px;
    padding: 24px;
    gap: 8px;
  }
  .guards__list li img,
  .guards__list li span {
    width: 72px;
  }
  .system__list {
    padding: 36px 16px 0;
  }
  .system__list summary img {
    width: 40px;
    height: 40px;
    transform: scale(0.74);
  }
  .system__list details > div {
    padding: 16px;
  }
  .system__list details ul {
    padding: 32px 0 0;
  }
  .system__list details li {
    padding: 0 0 24px;
    gap: 4px;
    flex-direction: column;
  }
  .system__list details li h6 {
    flex: 0 0 auto;
  }
  footer {
    padding: 56px 16px 136px;
    flex-direction: column-reverse;
    gap: 44px;
  }
  footer div div:has(h6) {
    gap: 20px;
  }
  footer div {
    gap: 28px;
  }
  footer div div:has(a) {
    gap: 0;
    justify-content: space-between;
  }
}