@font-face {
  font-family: 'Ambidexter';
  src: url('../fonts/Ambidexter_Regular.woff2') format('woff2'),
    url('../fonts/Ambidexter_Regular.woff') format('woff');
  font-weight: 400;
  font-style: normal;
}

*,
*:before,
*:after {
  box-sizing: border-box;
}

.icon {
  display: inline-block;
  vertical-align: top;
  position: relative;
  flex-shrink: 0;
}

.lock__icon {
  width: 56px;
  height: 56px;
  margin-right: 24px;
}

html,
body {
  display: flex;
  flex-direction: column;
}

html {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  scroll-behavior: smooth;
}

body {
  font-family: 'Raleway', Helvetica, Arial, sans-serif;
  font-variant: lining-nums;
  font-size: 24px;
  line-height: 1.4;
  font-weight: 600;
  background: var(--dark);
  color: var(--main);
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
}

button,
input,
optgroup,
select,
textarea {
  font: inherit;
  color: inherit;
  margin: 0;
}

button,
input {
  overflow: visible;
}

button,
select {
  text-transform: none;
}

button {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  cursor: pointer;
}

button::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

:active,
:focus:not(:focus-visible) {
  outline: none;
}

img {
  vertical-align: middle;
  border: none;
  max-width: 100%;
  height: auto;
}

b,
strong {
  font-weight: bold;
}

a,
button {
  transition: 0.15s ease-in-out;
  transition-property: color, border-color, background-color, opacity, box-shadow;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6,
.h1,
.h2,
.h3,
.h4,
.h5,
.h6 {
  font-family: inherit;
  color: inherit;
  font-weight: 900;
  line-height: 1.166667;
  margin: 0 0 32px;
}

h1,
.h1 {
  font-size: 72px;
  line-height: 1.1;
  font-weight: 800;
}

h2,
.h2 {
  font-size: 48px;
}

h3,
.h3 {
  font-size: 36px;
}

h4,
.h4 {
  font-size: 28px;
  line-height: 1.4;
  font-weight: bold;
  margin-bottom: 12px;
}

ul,
ol {
  margin: 0 0 32px;
}

p,
li {
  margin: 0 0 12px;
}

.btn {
  display: inline-block;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  text-decoration: none;
  user-select: none;
  cursor: pointer;
  border: none;
  font-size: 32px;
  line-height: 38px;
  font-weight: 900;
  padding: 27px 62px;
  border-radius: 8px;
  background: none;
  color: var(--main);
  transform: skewX(var(--skew));
}

.btn_themed {
  background: var(--theme-color, var(--teal));
}

.btn_big {
  transform: none;
  padding: 45px 62px;
  font-size: 24px;
  border-radius: 16px;
}

.btn_grey {
  background: var(--grey);
}

.btn_red {
  background: var(--red);
}

.btn_yellow {
  background: var(--yellow);
}

.btn_blue {
  background: var(--blue);
}

.btn_purple {
  background: var(--purple);
}

.btn_teal {
  background: var(--teal);
}

.btn_mustard {
  background: var(--mustard);
}

.btn_head {
  opacity: 0.5;
  transition: 0s;
}

.btn_head:hover {
  background: var(--grey);
  opacity: 1;
}

.btn:hover {
  box-shadow: 0 0 0 100px rgba(0, 0, 0, 0.1) inset;
}

.btn>span {
  display: inline-block;
  transform: skewX(calc(-1 * var(--skew)));
}

.btn[disabled],
.btn.is-disabled {
  opacity: .55;
  cursor: default;
  cursor: not-allowed;
}

.wrapper {
  overflow: clip;
}

.container {
  max-width: 1336px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
}

.row {
  --gap: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap);
}

.row>* {
  flex: 0 0 auto;
  width: 100%;
}

.row_2-col>* {
  width: calc((100% - var(--gap)) / 2);
}

.row_3-col>* {
  width: calc((100% - 2 * var(--gap)) / 3);
}

.section {
  scroll-margin-top: calc(var(--header-height) + 11px);
  margin-bottom: 64px;
}

.block {
  background: var(--main-alpha-5);
  border-radius: 24px;
}

.block>*:last-child {
  margin-bottom: 0;
}

.block__date {
  display: inline-block;
  vertical-align: top;
  background: var(--main-alpha-10);
  font-size: 28px;
  line-height: 1.4;
  padding: 17px 24px;
  border-radius: 24px;
  margin-bottom: 24px;
}

.block__icon {
  display: block;
  height: 72px;
  width: 72px;
  margin-bottom: 24px;
}

.header {
  position: sticky;
  top: 0;
  background: var(--dark);
  z-index: 101;
  margin-bottom: 11px;
}

.header__inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__left {
  display: flex;
  align-items: center;
  column-gap: 72px;
}

.header__logo {
  display: flex;
  align-items: center;
  column-gap: 35px;
  font-size: 10px;
}

.header__logo img {
  width: 136px;
}

.header__logos {
  display: flex;
  align-items: center;
  column-gap: 35px;
  font-size: 10px;
}


.header__buttons {
  display: flex;
}

.header__buttons .btn {
  font-size: 24px;
  line-height: 28px;
  padding: 10px 20px;
  border-radius: 5px;
}

.section-cube-left {
  position: relative;
}

.section-cube-left::before {
  content: "";
  position: absolute;
  top: -23%;
  left: -20%;
  width: 370px;
  height: 370px;
  background-size: cover;
  background-image: url("../../images/cube_left.png");
  z-index: -1;
}

.section-cube {
  position: relative;
}

.section-cube::after {
  content: "";
  position: absolute;
  top: -15%;
  right: -10%;
  width: 322px;
  height: 322px;
  background-size: cover;
  background-image: url("../../images/cube.png");
}

.main {
  text-align: center;
  position: relative;
}

.main__content {
  border: 12px solid var(--red);
  background-color: var(--red-alpha-5);
  background-image: url('../images/pi.svg');
  background-repeat: no-repeat;
  background-position: calc(50% + 594px) 56%;
  background-size: auto 124.4%;
  border-radius: 72px;
  padding: 44px 0 109px;
}

.main__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  column-gap: 35px;
  font-size: 10px;
  margin-bottom: 33px;
}

.main__title {
  margin-bottom: 26px;
}

.main__title em {
  display: block;
  font-style: normal;
  font-family: 'Ambidexter', 'Raleway', Helvetica, Arial, sans-serif;
  font-size: 1.111111em;
  font-weight: normal;
}

.main__text {
  opacity: .5;
  max-width: 23em;
  margin: 0 auto;
}

.main__buttons {
  display: inline-flex;
  vertical-align: top;
  justify-content: center;
  background: var(--grey);
  border: 12px solid var(--dark);
  border-radius: 20px;
  transform: skewX(var(--skew));
  margin-top: -58px;
}

.main__buttons .btn {
  transform: none;
  padding-left: 48px;
  padding-right: 48px;
}

.main__dec-1 {
  position: absolute;
  left: -33px;
  top: -11px;
}

.main__dec-2 {
  position: absolute;
  right: -107px;
  bottom: -90px;
}



.section_tickets {
  position: relative;
}

.tickets-dec-1 {
  position: absolute;
  left: 100%;
  top: 0;
  margin: -40px 0 0 -104px;
}

.section_tickets h2 {
  text-align: center;
  margin-bottom: 48px;
}

.section_tickets .row {
  --gap: 24px;
}

.ticket {
  display: flex;
  flex-direction: column;
}

.ticket__content {
  flex-grow: 1;
  min-height: 1px;
  border-style: solid;
  border-width: 4px;
  border-radius: 40px;
  padding: 44px;
  padding-bottom: 139px;
  border: none;
  background: #29292b;
}

.ticket__content h3 {
  margin-bottom: 24px;
}

.ticket__footer {
  align-self: center;
  display: inline-block;
  vertical-align: top;
  background: var(--grey);
  border: 12px solid var(--dark);
  border-radius: 20px;
  transform: skewX(var(--skew));
  margin-top: -107px;
  position: relative;
  left: -5px;
}

.ticket__footer .btn {
  transform: none;
}

.ticket__price {
  font-size: 28px;
  line-height: 1.1666;
  transform: skewX(calc(-1* var(--skew)));
  padding: 29px 50px 29px;
}

.ticket__price>strong {
  display: block;
  font-weight: 900;
  margin-left: 4px;
}

.ticket__price>span {
  display: block;
  opacity: .6;
  font-weight: normal;
}

.ticket_yellow .ticket__content {
  border-color: var(--yellow);
  background-color: var(--yellow-alpha-5);
}

.ticket_red .ticket__content {
  border-color: var(--red);
  background-color: var(--red-alpha-5);
}

.ticket_blue .ticket__content {
  border-color: var(--blue);
  background-color: var(--blue-alpha-5);
}

.speaker {
  display: flex;
}

.speaker__image {
  flex: 0 0 auto;
  width: 39.611%;
  margin-right: 4px;
  position: relative;
}

.speaker__image-bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  color: var(--dark);
}

.speaker__image img {
  display: block;
  position: relative;
  width: 100%;
  height: auto;
}

.speaker__content {
  flex-grow: 1;
  min-width: 1px;
  align-self: flex-end;
}

.speaker__title {
  font-size: 64px;
  line-height: 1.13;
  font-weight: 800;
  margin-bottom: 23px;
  font-style: italic;
}

.speaker__title em {
  font-family: 'Ambidexter', 'Raleway', Helvetica, Arial, sans-serif;
  font-weight: normal;
  font-size: 1.125em;
}

.speaker__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.speaker__tags>span {
  color: rgba(255, 255, 255, .6);
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--dark);
}

.hotel {
  position: relative;
}

.hotel:before {
  content: '';
  display: block;
  padding-top: 31%;
}

.hotel__content {
  position: relative;
  z-index: 1;
  border-radius: 40px;
  padding: 40px;
  background-color: #1d252b;
  margin-left: 52px;
  width: 680px;
}

.hotel__content h3 {
  font-weight: bold;
  letter-spacing: -0.01em;
  line-height: 1.5;
  margin-bottom: 12px;
}

.hotel__location {
  display: flex;
  align-items: center;
  justify-content: space-between;
  column-gap: 24px;
  padding: 24px;
  border-radius: 20px;
  background: #333336;
  margin-top: 24px;
}

.hotel__address {
  font-size: 16px;
  line-height: 20px;
  font-weight: 500;
  opacity: .6;
  max-width: 15em;
}

.hotel__location-links {
  display: flex;
  column-gap: 12px;
}

.hotel__location-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 74px;
  height: 74px;
  border-radius: 12px;
  background: var(--main-alpha-5);
}

.hotel__location-links a:hover {
  box-shadow: 0 0 0 100px rgba(0, 0, 0, 0.1) inset;
}

.hotel__bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
}

.hotel__bg img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 32px;
}

.about {
  --gap: 48px;
}

.about__image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 32px;
}

.about__content ul {
  padding-left: 1.2em;
}

.about__content :last-child {
  margin-bottom: 0;
}

.footer-simple {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block: 24px;
}

.footer-simple__left {
    display: flex;
    align-items: center;
    gap: 35px;
}

.footer-simple__left img {
  width: 136px;
}

.footer {
  padding-bottom: 32px;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__logo img {
  width: 270px;
  max-width: none;
  height: auto;
}

.footer__logos {
  display: flex;
  align-items: center;
  column-gap: 49px;
  font-size: 14px;
}

.footer__buttons {
  display: flex;
}

.main_banner_mob {
  display: none;
}

@media (min-width: 1360px) {
  .footer__buttons .btn:not(:last-child) {
    display: none;
  }
}