@import url("https://fonts.googleapis.com/css2?family=Handjet:wght@100..900&family=Roboto+Condensed:ital,wght@0,100..900;1,100..900&family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap");

/* General styles */

:root {
  --font: "Roboto";
  --condensed-font: "Roboto Condensed";
  --header-font: "Handjet";
  --font-size-h1: 36px;
  --font-size-h2: 28px;
  --font-size-body: 20px;
  --font-size-small: 16px;
  --line-height: 1.3;
  --line-height-body: 1.5;
  --letter-spacing-header: 0.2em;
  --letter-spacing-condensed: 0.15em;
  --font-weight-header: 500;
  --font-weight: 300;
  --font-weight-thin: 100;

  --color-salvie: #6b8a80;
  --color-mose: #71926e;
  --color-hav: #324e56;
  --color-hav-dus: #324e5677;
  --color-blurple: #243248;
  --color-oker: #eda842;
  --color-gamalrosa: #dfaca5;
  --color-rust: #b0583f;
  --color-varmkvit: #fefcf6;
  --color-hav-70: #708389;

  --link-color: var(--color-rust);
  --body-font-color: var(--color-salvie);
  --heading-color: var(--color-hav);
  --header-color: var(--color-salvie);
  --header-text-color: var(--color-varmkvit);
  --body-background-color: var(--color-varmkvit);
}

* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}
body {
  font-family: "Roboto", sans-serif;
  font-size: var(--font-size-body);
  color: var(--body-font-color);
  line-height: var(--line-height);
  background-color: var(--body-background-color);
}

.img-superfluid {
  width: 100%;
}

h1,
h2,
h3,
h4,
h5 {
  font-family: var(--header-font);
  margin-bottom: 0.5rem;
  line-height: var(--line-height);
  font-weight: var(--font-weight-header);
  color: var(--heading-color);
  letter-spacing: var(--letter-spacing-header);
}

h1 {
  font-size: var(--font-size-h1);
  color: var(--header-text-color);
}
h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-body);
}
h4 {
  font-size: var(--font-size-small);
}
h5 {
  font-size: var(--font-size-small);
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

a {
  color: var(--link-color);
}

/* Header / Menu */

header#main-header {
  background-color: var(--header-color);
  color: var(--header-text-color);
}

#main-nav {
  /* flex container */
  display: flex;
  margin: 0 auto;
  max-width: 1150px;
  padding: 40px;
  align-items: center;
  gap: 3rem;
  justify-content: space-between;
}

#booster-logo {
  width: 220px;
  fill: var(--color-varmkvit);
}

#booster-logo svg {
  width: 100%;
}

#wide-menu {
  display: flex;
}

#thin-menu {
  display: none;
}

#thin-menu[open] .main-menu {
  position: absolute;
  top: 130px;
  left: 0;
  right: 0;
  z-index: 1;
}

#thin-menu summary::marker {
  display: none;
}

#thin-menu summary::-webkit-details-marker {
  display: none;
}

#thin-menu summary {
  width: 30px;
  height: 30px;
  list-style: none;
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.hamburger div {
  border: 2px solid var(--header-text-color);
}

.main-menu {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  list-style-type: none;
  align-items: baseline;
  gap: 1rem;
}

.main-menu .nav-item.current {
  font-weight: 500;
  /* border-bottom: 3px solid #dd9b77; */
}

.main-menu .nav-item {
  display: block;
  padding: 8px 16px;
  font-size: var(--font-size-body);
  font-family: var(--header-font);
  color: var(--header-text-color);
  letter-spacing: var(--letter-spacing-header);
  text-decoration: none;
  border: 2px solid var(--header-text-color);
  border-radius: 2px;
}

.description img {
  width: 100%;
}

/* Footer with partners */
#sponsor-area {
  padding: 4rem 2rem;
  text-align: center;
}

#sponsor-area .sponsorlogos {
  width: 80%;
  margin: 0 auto;
  display: flex;
  list-style: none;
  flex-wrap: wrap;
  justify-content: space-around;
  align-items: center;
  margin-bottom: 1rem;
}
#sponsor-area .sponsorlogos li {
  flex-basis: 25%;
  max-width: 170px;
  margin-top: 15px;
  margin-bottom: 15px;
  padding: 0px 20px 0px 20px;
}

#sponsor-area .sponsorlogos li img {
  width: 100%;
  height: auto;
  aspect-ratio: 16/9;
  object-fit: contain;
}

footer {
  height: 350px;
  background-color: var(--header-color);
  position: relative;
  text-align: center;
  padding-top: 100px;
}
footer h2 {
  color: var(--header-text-color);
  text-transform: none;
  margin-bottom: 2rem;
}

footer p {
  color: var(--header-text-color);
  max-width: 600px;
  margin: 0 auto;
}

footer a {
  color: var(--header-text-color);
}

/* Front page */
.front-image {
  position: relative;
  width: 100%;
}
.front-image img {
  width: 100%;
}

/* Article styles */

article {
  padding: 3rem 0;
}
article h1,
article h2,
article h3,
article h4,
article h5 {
  font-family: var(--condensed-font);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-condensed);
  margin-bottom: 0.5rem;
}

article > * {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2rem;
}

/* This is done to make map have a relative height based on the width. This is done to make it responsive */

.header-join h1 {
  text-align: center;
  padding: 40px;
  max-width: 800px;
  margin: 0 auto;
}

article .map {
  position: relative;
  max-width: 900px;
  padding-bottom: 40%;
}
article .map iframe {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
/* Organizers styling */
#organizers {
  display: flex;
  flex-flow: row wrap;
  justify-content: space-around;
  align-items: flex-start;
  list-style: none;
}

#organizers .organizer {
  flex-basis: 33%;
  margin-bottom: 1rem;
}
#organizers .organizer img {
  max-width: 200px;
}
#organizers .organizer .name {
  display: block;
  font-weight: 400;
}
#organizers .organizer .twitter-handle {
  display: block;
  font-weight: 400;
}
/* Front styling */
.rocket,
.header-join {
  height: 80%;
  position: relative;
  background-color: var(--header-color);
  background-size: 100% auto;
  background-repeat: no-repeat;
  background-position: center 100px;
  overflow: hidden;
  color: var(--header-text-color);
  font-family: var(--header-font);
  letter-spacing: var(--letter-spacing-header);
}
.rocket .middle-of-image {
  width: 70%;
  max-width: 900px;

  margin: auto;
  margin-bottom: 40px;
}
.rocket .middle-of-image h1 {
  text-align: center;
}
.rocket .middle-of-image .dates-slogan {
  margin-top: 50px;
}
.rocket .middle-of-image .dates-location .font-page-conference-dates {
  font-size: var(--font-size-h1);
}
.rocket .middle-of-image .dates-location .front-page-slogan {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight);
}
.rocket .middle-of-image .dates-location span {
  display: block;
  text-align: center;
}
.rocket .middle-of-image .dates-location {
  margin-top: 50px;
}

.call-to-action {
  text-align: center;
  position: absolute;
  top: calc(50% - 42px);
  left: 0;
  right: 0;
}

.call-to-action__link {
  font-family: var(--header-font);
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight);
  letter-spacing: var(--letter-spacing-header);
  line-height: var(--line-height);
  color: var(--header-text-color);
  background-color: var(--color-hav);
  border: 4px solid var(--header-text-color);
  border-radius: 2px;
  text-decoration: none;
  padding: 18px 36px;
}

.call-to-action__link:hover {
  background-color: var(--color-rust);
}

.imagetron-2 {
  display: flex;
  flex-direction: column;
  padding: 80px;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  text-align: center;
}

.image-n-contents {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-flow: dense;
}

.image-n-contents__content {
  align-self: center;
  padding: 40px;
}

.image-n-contents__content:nth-of-type(2n) {
  grid-column: 2;
}

.image-n-contents__image:nth-of-type(2n) {
  grid-column: 1;
}

@media (max-width: 720px) {
  #wide-menu {
    display: none;
  }
  #thin-menu {
    display: flex;
  }
  #main-nav {
    flex-direction: row;
    padding: 20px;
  }
  #booster-logo {
    flex: 1;
  }
  #booster-logo img {
    max-height: 93px;
  }
  .main-menu .nav-item {
    width: 100%;
  }
  .main-menu {
    flex-direction: column;
    background: var(--header-color);
    justify-content: flex-start;
    padding: 1rem;
    height: 100%;
  }
  #booster-logo svg {
    width: 130px;
  }
  .imagetron-2 {
    padding: 30px;
  }
  .image-n-contents {
    display: block;
  }
  .image-n-contents__content {
    padding: 30px;
  }

  #sponsor-area {
    padding: 1rem;
  }

  #sponsor-area .sponsorlogos li {
    flex-basis: 50%;
    max-width: 100px;
    padding: 0px;
  }

  article {
    padding: 0.8rem;
  }

  .front-image {
    height: 500px;
    overflow: hidden;
  }
  .front-image img {
    object-fit: cover;
    width: 750px;
  }

  .header-join h1 {
    padding: 20px;
  }

  .speakers-body .speaker {
    flex-direction: column;
  }

  .speakers-body .speaker .left,
  .speakers-body .speaker .right {
    width: 100%;
  }

  .program .period:has(.room + .room):after {
    position: absolute;
    content: "";
    top: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to left, rgba(0, 0, 0, 0.1), transparent 30%);
    width: 10px;
  }

  button.toggler {
    display: none;
  }
}

.program {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  color: var(--color-blurple);
  max-width: 1100px;
}

.program .period {
  max-width: 600px;
  width: 100%;
  position: relative;
}

.program .period:has(.room + .room) {
  max-width: 1100px;
}

.program .break {
  align-items: center;
  display: flex;
  flex-direction: column;
  position: relative;
  width: 100%;
  max-width: 800px;
}
.program .break .title {
  font-size: var(--font-size-body);
  font-family: var(--condensed-font);
  letter-spacing: var(--letter-spacing-condensed);
  text-transform: uppercase;
  background: var(--color-varmkvit);
  z-index: 1;
  padding: 0 12px;
}

.program .break .line {
  height: 1px;
  border-bottom: 1px solid var(--color-mose);
  position: absolute;
  top: 12px;
  left: 0;
  right: 0;
}

.program .break time {
  font-size: var(--font-size-small);
  background: var(--color-varmkvit);
}

.program .period > header {
  display: flex;
  flex-direction: column;
}

.program .period header a {
  color: var(--color-blurple);
  text-decoration: none;
}

.program .period .rooms {
  display: flex;
  flex-direction: row;
  gap: 12px;
  overflow: auto;
}

.program .period .room:has(+ .room) {
  width: 90%;
  max-width: 340px;
}
.program .period .room + .room {
  width: 90%;
  max-width: 340px;
}

.program .period .rooms.grabbable {
  cursor: grab;
}

.program .period:has(.grabbable):after {
  position: absolute;
  content: "";
  top: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to left, rgba(0, 0, 0, 0.1), transparent 30%);
  width: 10px;
}

.program .period .room {
  width: 100%;
  flex-shrink: 0;
}

.program .period .room .sessions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.program .talk {
  background: var(--color-varmkvit);
  border: 2px solid var(--color-rust);
  border-left: 8px solid var(--color-rust);
  padding: 16px 16px 16px 24px;
  overflow: hidden;
}

.program .talk.common {
  border: 2px solid var(--color-salvie);
  border-left: 8px solid var(--color-salvie);
}
.program .talk.Workshop {
  border: 2px solid var(--color-hav);
  border-left: 8px solid var(--color-hav);
}
.program .talk.continuation {
  border: 2px solid var(--color-hav-dus);
  border-left: 8px solid var(--color-hav-dus);
}
.program .talk.cancelled {
  border: 2px solid var(--color-hav-dus);
  border-left: 8px solid var(--color-hav-dus);
}
.program .talk.cancelled h4 {
  text-decoration: line-through;
}

a.talk {
  color: var(--color-blurple);
  text-decoration: none;
}

.talk .description {
  font-size: var(--font-size-small);
  display: block;
}
.talk .description h4 {
  font-family: var(--condensed-font);
  font-size: var(--font-size-body);
  letter-spacing: var(--letter-spacing-condensed);
  font-weight: var(--font-weight-header);
  text-transform: uppercase;
  margin-bottom: 0px;
}
.talk .description .talk-type {
  display: inline-block;
  padding: 2px 10px;
  background: var(--color-gamalrosa);
  color: var(--color-blurple);
  text-transform: uppercase;
  font-size: 12px;
  margin-top: 12px;
}

.talk.Workshop .description .talk-type {
  background: color-mix(in srgb, var(--color-hav) 70%, #fff);
  color: var(--color-varmkvit);
}

.program .author {
  display: block;
  font-size: 16px;
}

.program .day1,
.program .day2,
.program .day3 {
  margin-top: 3rem;
}

.program.horizontal {
  flex-direction: row;
  align-items: start;
  overflow: scroll;
  position: relative;
  max-width: 1440px;
}

.program-wrapper {
  position: relative;
  max-width: 1100px;
}
.program-wrapper:has(.program.horizontal) {
  max-width: 1440px;
}

.program-wrapper:has(.program.horizontal):after {
  position: absolute;
  content: "";
  top: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to left, rgba(0, 0, 0, 0.1), transparent 30%);
  width: 30px;
}

.program.horizontal .period {
  flex-shrink: 0;
}
.program.horizontal .period:after {
  background: transparent;
}
.program.horizontal .period .rooms {
  width: 100%;
  flex-direction: column;
}
.program.horizontal .period .room {
  width: 100%;
  max-width: none;
}
.program.horizontal .period .sessions {
  flex-direction: row;
}

.program.horizontal .period .sessions .talk {
  width: 100%;
}

.program.horizontal .period:not(:has(.location + .talk.common)) .talk.common {
  margin-top: 26px;
}

button.toggler {
  appearance: none;
  border: 2px solid var(--color-salvie);
  border-radius: 4px;
  padding: 8px;
  background: #fff;
  margin-bottom: 32px;
  color: var(--color-hav);
}
button.toggler.toggled {
  transform: rotate(90deg);
}

.program-header-join {
  background: var(--header-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
}

.program-header-join ul {
  margin: 0 auto;
  max-width: 600px;
  display: flex;
  gap: 36px;
  font-family: var(--header-font);
  font-size: var(--body-font-size);
}

.program-header-join ul li {
  display: block;
}

.program-header-join ul li a {
  color: var(--header-text-color);
  text-decoration: none;
  padding: 8px 16px;

  letter-spacing: var(--letter-spacing-header);
  font-size: var(--font-size-h2);
}

.program-header-join ul li.active a {
  border: 2px solid var(--header-text-color);
  border-bottom: none;
  border-radius: 2px;
}

.speakers-body {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.speakers-body .speaker {
  display: flex;
  justify-content: space-between;
}
.speakers-body .speaker .left {
  width: 30%;
  flex-shrink: 0;
}
.speakers-body .speaker .left .speaker-image {
  width: 100%;
  height: auto;
}
.speakers-body .speaker .right {
  width: 60%;
}

.speakers-body .speaker .right .speaker-bio p {
  padding-right: 4rem;
}

.kids-intro {
  text-align: center;
  max-width: 800px;
}

.kids-program {
  max-width: 1000px;
  display: flex;
  flex-flow: row wrap;
  gap: 100px;
}

.kids-program .kids-course {
  flex: 40%;

  h2 {
    text-align: center;
    background: var(--header-color);
    color: var(--header-text-color);
    padding: 10px 20px 10px 20px;
    margin-left: -20px;
    margin-right: -20px;
  }

  h5 {
    text-align: center;
    padding: 20px;
  }
}

.splash {
  padding: 4vh 3vw;
  width: 100vw;
  height: 100vh;
}

.splash-grid {
  width: 100%;
  height: 100%;
  display: flex;
  flex-wrap: wrap;
}

.splash-grid .splash-cell {
  width: 25%;
  height: 20%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2vh 5vw;
}

.splash-grid .splash-cell img {
  object-fit: contain;
  height: 100%;
  width: 100%;
}

@keyframes show {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes hide {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

.splash-grid .visible {
  opacity: 1;
  animation-name: show;
  animation-duration: 2s;
}

.splash-grid .invisible {
  opacity: 0;
  animation-name: hide;
  animation-duration: 1.5s;
}

.tv {
  padding: 64px;
  overflow: hidden;
}
.tv .tv-day {
  margin-bottom: 64px;
  position: relative;
  aspect-ratio: 16/9;
}


.tv .qr {
  position: absolute;
  top: 1px;
  right: 1px;
  width: 64px;
  height: 64px;
  margin: 6px;
}

.tv .tv-day:after {
  position: absolute;
  content: "";
  top: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to left, rgba(0, 0, 0, 0.1), transparent 30%);
  width: 20px;
}

.tv .tv-day h1 {
  background: var(--color-salvie);
  padding: 16px;
  width: 100%;
}

.tv .tv-timeslots {
  display: flex;
  gap: 64px;
  overflow-y: scroll;
}

.tv .tv-timeslot {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tv .tv-timeslot:has(.tv-talk) {
  width: 100%;
  flex-shrink: 0;
}

.tv .tv-timeslot-info {
  display: block;
  width: 100%;
  min-width: 150px;
  background: var(--color-varmkvit);
  border: 2px solid var(--color-hav-70);
  border-bottom: 8px solid var(--color-hav-70);
  padding: 16px 16px 16px 24px;

  font-family: var(--condensed-font);
  font-size: var(--font-size-body);
  letter-spacing: var(--letter-spacing-condensed);
  font-weight: var(--font-weight-header);
  text-transform: uppercase;
  color: var(--color-blurple);
}

.tv .tv-timeslot:not(:has(.tv-talk)) .tv-timeslot-info {
  height: 100%;
}

.tv .tv-rooms {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tv .tv-rooms .tv-room {
  display: flex;
  gap: 8px;
}

.tv .tv-rooms .tv-room h2 {
  width: 260px;
  flex-shrink: 0;
}

.tv .tv-rooms .tv-room .tv-talks {
  list-style-type: none;
  display: flex;
  gap: 16px;
}

.tv .tv-rooms .tv-room .tv-talks .tv-talk {
  min-width: 300px;
  width: 100%;
  background: var(--color-varmkvit);
  border: 2px solid var(--color-rust);
  border-left: 8px solid var(--color-rust);
  padding: 16px 16px 16px 24px;

  font-family: var(--condensed-font);
  font-size: var(--font-size-body);
  letter-spacing: var(--letter-spacing-condensed);
  font-weight: var(--font-weight-header);
  text-transform: uppercase;
  color: var(--color-blurple);
}

.next-up {
  background-color: var(--color-hav);
  height: 100vh;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-template-rows: repeat(3, 1fr);
  grid-column-gap: 0px;
  grid-row-gap: 0px;
  overflow: hidden;
}

.next-up .logo { 
  grid-area: 1 / 1 / 2 / 2;
  padding: 3em;
}
.next-up .talk-info { 
  grid-area: 2 / 2 / 3 / 7;
  display:none;
} 
.next-up .talk-info.current {
  display:block;
}
.next-up .talk-info h1 {
  font-size: 3.5em;
  text-align: left;
  margin-bottom: 1em;
}
.next-up .talk-info h2 {
  font-family: var(--condensed-font), sans-serif;
  font-size: 2em;
  text-align: left;
  color: var(--header-text-color);
}
.next-up .talk-info h4 {
  font-family: var(--condensed-font), sans-serif;
  font-size: 1.5em;
  text-align: left;
  color: var(--header-text-color);
}
.next-up .talk-info h4 img {
  vertical-align:-0.9em;
  margin-right: 1em;
  border-radius: 50%;
}