@import url(https://fonts.googleapis.com/css?family=Open+Sans:300,regular,500,600,700,800,300italic,italic,500italic,600italic,700italic,800italic);

@import url(https://fonts.googleapis.com/css?family=Montserrat:100,200,300,regular,500,600,700,800,900,100italic,200italic,300italic,italic,500italic,600italic,700italic,800italic,900italic);

:root {
  --clr-accent: hsl(197, 79%, 48%);
  --clr-600: hsl(50, 17%, 93%);
  --clr-400: hsl(56, 6%, 54%);
  --clr-300: hsl(54, 20%, 79%);
  --clr-200: hsl(240, 25%, 98%);
  --clr-100: hsl(0, 0%, 100%);

  --bs01: 0 2px 30px 0 hsla(0, 0%, 0%, 0.051);
  --bs02: 0 14px 28px rgba(0, 0, 0, 0.05), 0 10px 10px rgba(0, 0, 0, 0.05);
  --bs03: 0px 2px 8px 0px rgba(99, 99, 99, 0.2);
  --bs04: 0 2px 20px 0 rgba(0, 0, 0, 0.035);

  --ff-base: 'Open Sans', sans-serif;
  --ff-heading: 'Montserrat', sans-serif;

  --fs-base: 16px;
  --fs-400: clamp(1rem, 0.9rem + 0.5vw, 1.25rem);
  --fs-500: clamp(1.25rem, 1.4rem + 0.5vw, 1.5rem);
  --fs-600: clamp(1.5rem, 1.8rem + 1vw, 2rem);
}

/* Reset --------------------------------------------------------------------------------------- */

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

* {
  margin: 0;
}

img,
picture,
video,
canvas,
svg {
  max-inline-size: 100%;
  display: block;
}

body,
h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

input,
button,
textarea,
select {
  font: inherit;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

/* Reusables ----------------------------------------------------------------------------------- */

.link {
  font-weight: bold;
  text-decoration: underline;
}

.slogan {
  margin: 0.15rem 0 2rem;
  font-size: 14px;
  font-weight: 300;
  color: var(--clr-400);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.box {
  inline-size: min(100%, 1200px);
  margin: 2rem auto;
  padding: 2rem;
  background-color: var(--white100);
  border: 1px solid var(--white200);
  border-radius: 10px;
  box-shadow: var(--bs01);

  display: grid;
  grid-template-columns: 1fr 2fr;
  align-items: center;
  gap: 3rem;

  @media (width < 975px) {
    padding: 2rem 1rem;
    grid-template-columns: 1fr;
  }
}

.box img {
  align-self: start;
}

.box-info {
  padding: 1rem;
}

.box-info h2 {
  margin-block-end: 0;
}

.box-info p {
  margin-block: 2rem;
}

/* Honeypot for contactform ------------------ */

.pot {
  display: none;
}

/* Buttons ----------------------------------- */

.btns {
  margin-block-start: 1.5rem;

  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn {
  max-block-size: 50px;
  padding: 0.5rem 1rem;
  font-weight: 400;
  color: var(--clr-700);
  background-color: var(--clr-600);
  border-radius: 0.5rem 1rem;
  box-shadow: var(--bs02);
  transition: 0.2s ease-in-out;
  cursor: pointer;
}

.btn:hover {
  box-shadow: var(--bs03);
}

.solid {
  background-color: transparent;
  color: var(--clr-700);
  box-shadow: var(--bs02);
}

.req {
  color: var(--clr-accent);
}

.error-text {
  color: var(--clr-accent);
}

#successMsg {
  color: var(--clr-accent);
}

/* Dropdown ------------------------------------------------------------------------------------ */

.drop {
  position: relative;
}

.dropdown {
  inline-size: max-content;
  padding: 1rem;
  background-color: #fff;
  border-block-start: 1px solid var(--clr-600);
  border-radius: 0 0 0.5rem 1rem;
  box-shadow: var(--bs02);

  position: absolute;
  top: 100%;
  left: -0.5rem;

  display: none;

  li {
    a {
      inline-size: 100%;
      padding: 0.5rem 1rem;
      font-weight: 400;
      line-height: 2rem;
    }

    :hover {
      background-color: var(--clr-600);
      border-radius: 0.5rem 1rem;
    }
  }
}

.drop:hover .dropdown {
  display: block;
}

.down {
  display: flex;
  align-items: center;
  gap: 0.5rem;

  img {
    margin-block-start: 2.8px;
  }
}

/* Typography ---------------------------------------------------------------------------------- */

body {
  max-width: 2650px;
  font-family: var(--ff-base);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.8;
  background: var(--clr-100);
}

h1,
h2,
h3 {
  font-family: var(--ff-heading);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1px;
  text-wrap: balance;
}

h1 {
  font-size: var(--fs-600);
}

h2 {
  margin-block-end: 1em;
  font-size: var(--fs-500);
}

h3 {
  margin-block-end: 1em;
  font-size: var(--fs-400);
}

p {
  margin-block: 1em;
}

p:first-of-type {
  margin-block-start: 0;
}

/* Header -------------------------------------------------------------------------------------- */

header {
  inline-size: 100%;
  padding: 1rem;
  background-color: var(--clr-100);
  box-shadow: var(--bs04);

  position: sticky;
  top: 0;
  left: 0;
  z-index: 1;

  @media (width < 975px) {
    padding-inline: 1rem;
  }
}

.logo img {
  inline-size: clamp(11.25rem, 10.125rem + 5vw, 18.125rem);
  margin-inline-start: -0.8rem;
}

header .mainNav {
  inline-size: min(100%, 1600px);
  block-size: 120px;
  margin-inline: auto;
  padding-inline: 3rem;

  display: flex;
  justify-content: space-between;
  align-items: center;

  @media (width < 975px) {
    block-size: 50px;
    padding-inline: 0;
  }
}

.mainNav .menuList {
  display: flex;
  align-items: center;
  gap: 2rem;

  @media (width < 975px) {
    inline-size: 100%;
    block-size: 100vh;
    padding: 70px 40px 0;
    background-color: var(--clr-accent);
    opacity: 1;
    transition: left 0.3s ease;

    flex-direction: column;
    gap: 0;

    position: fixed;
    top: 0;
    left: -100%;
  }
}

.menuList a {
  padding-inline: 1rem;
  font-weight: 400;
  color: var(--clr-700);
  line-height: 152px;
}

.menuList li.btn a {
  font-weight: 400;
  color: var(--clr-700);
}

.mainNav li {
  display: flex;
  align-items: center;
}

.closeMenuBtn {
  position: absolute;
  top: 20px;
  right: 20px;
  cursor: pointer;

  display: none;
}

.menu {
  cursor: pointer;

  display: none;
}

@media (width < 975px) {
  .mainNav .menuList {
    width: 100%;
    height: 100vh;
    padding: 70px 40px 0;
    background-color: var(--clr-accent);
    opacity: 1;
    transition: left 0.3s ease;

    flex-direction: column;
    gap: 0;

    position: fixed;
    top: 0;
    left: -100%;
  }

  .menuList li {
    width: 100%;
    gap: 0;

    display: flex;
    align-items: start;
  }

  .menuList .btn {
    display: none;
  }

  .mainNav a {
    color: var(--clr-100);
    font-size: 1.5rem;
    line-height: 60px;
  }

  .mainNav a:hover,
  .mainNav a.active {
    color: #06233a;
  }

  .dropdown {
    width: 100%;
    position: initial;
    border: none;
    border-radius: 0.5rem 1rem;
    background-color: var(--clr-accent);
    box-shadow: none;
    display: block;
  }

  .dropdown li:hover {
    background-color: transparent;
  }

  .dropdown li a {
    color: var(--clr-100);
    font-size: 1rem;
    text-align: left;
  }

  .drop {
    justify-content: start;
    align-items: start;
    flex-direction: column;
  }

  .closeMenuBtn,
  .menu {
    display: block;
  }

  header.showMenu::before {
    content: '';
    width: 100%;
    height: 100vh;
    backdrop-filter: blur(2px);

    position: fixed;
    top: 0;
    left: 0;
  }

  header.showMenu .mainNav .menuList {
    left: 0;
  }
}

/* Hero ---------------------------------------------------------------------------------------- */

.hero {
  padding-inline: 3rem;

  @media (width < 700px) {
    padding-inline: 1rem;
  }
}

.heroImg,
.heroImg01 {
  inline-size: min(100%, 1800px);
  min-block-size: 550px;
  margin: 4rem auto 0;
  background: url(../images/home.webp) no-repeat center/cover;
  border-radius: 1.5rem 7.5rem;

  @media (width < 900px) {
    margin-top: 2.5rem;
    min-height: 350px;
    border-radius: 1rem 3rem;
  }
}

.heroImg01 {
  background: url(../images/over.webp) no-repeat center/cover;
}

/* Main ---------------------------------------------------------------------------------------- */

.intro {
  inline-size: min(100%, 1400px);
  margin: clamp(2rem, 1.509rem + 2.182vw, 5rem) auto;
  padding-inline: 3rem;

  @media (width < 900px) {
    padding-inline: 1rem;
  }

  img {
    border-radius: 1.5rem 7.5rem;

    @media (width < 900px) {
      border-radius: 1rem 3rem;
    }
  }
}

.intro14-rl {
  display: grid;
  align-items: center;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
}

.intro14-lr {
  display: grid;
  align-items: center;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
}

.intro14-rl,
.intro14-lr {
  @media (width < 1150px) {
    grid-template-columns: repeat(2, 1fr);
  }

  @media (width < 900px) {
    margin-block-start: 2rem;
    grid-template-columns: 1fr;
  }
}

.intro18 {
  inline-size: min(100%, 1800px);
}

.text-wrapper {
  padding: 4rem;
  border-radius: 0.5rem 1rem;
  box-shadow: var(--bs01);

  @media (width < 700px) {
    padding: 2rem;
  }
}

.intro-text-01 {
  column-count: 2;
  column-gap: 3rem;

  @media (width < 900px) {
    column-count: 1;
    column-gap: 2rem;
  }
}

.intro-text ul,
.intro-text-01 ul {
  list-style: circle;
  margin-left: 2rem;
  margin-bottom: 2rem;
}

@media (width < 700px) {
  .intro-text-01 ul {
    margin-inline-start: 1rem;
  }

  .intro-text ul {
    margin-inline-end: 1rem;
  }
}

.title {
  padding-inline: 2rem;
}

/* Slider -------------------------------------------------------------------------------------- */

.sponsors {
  margin-block: 5rem;
  padding-inline: 1rem;
}

.slider {
  inline-size: min(100%, 1600px);
  padding: 2rem 1rem;
  margin-inline: auto;

  .slider-items {
    inline-size: 100%;
    padding: 0 2rem;
    border-radius: 0.5rem 1rem;

    display: grid;
    grid-template-columns: repeat(9, 1fr);
    place-items: center;
    gap: 2rem;

    img {
      max-block-size: 80px;
    }

    img.img01 {
      max-block-size: 130px;
    }

    img.img02 {
      max-block-size: 70px;
    }

    @media (width < 900px) {
      padding-inline: 1rem;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
    }
  }
}

/* Timeline ------------------------------------------------------------------------------------ */

.timeline {
  margin-block: 10rem;

  .title {
    text-align: center;
    padding-inline: 1rem;

    h2 {
      margin: 0;
    }
  }
}

.time-wrapper {
  inline-size: min(100%, 1700px);
  margin: 4rem auto;
  padding-inline: 1rem;

  position: relative;

  .center-line {
    inline-size: 1px;
    block-size: 100%;
    background-color: var(--clr-600);

    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .row {
    display: flex;
    justify-content: flex-start;

    .time-details {
      inline-size: calc(50% - 40px);
      padding: 2rem;
      background-color: var(--clr-100);
      border-radius: 0.5rem 1rem;
      box-shadow: var(--bs01);

      position: relative;

      p {
        margin: 0;
      }
    }

    .time-details::before {
      content: '';
      inline-size: 15px;
      block-size: 15px;
      background-color: var(--clr-600);

      position: absolute;
      top: 26px;
      transform: rotate(45deg);
      z-index: -1;
    }

    .time-details .icon {
      inline-size: 11px;
      block-size: 11px;
      text-align: center;
      line-height: 11px;
      background-color: var(--clr-accent);
      border-radius: 50%;
      box-shadow: var(--bs03);

      position: absolute;
      top: 28px;
    }
  }

  .row01 {
    justify-content: flex-start;

    .time-details::before {
      right: -7px;
    }

    .time-details .icon {
      right: -46px;
    }
  }

  .row02 {
    justify-content: flex-end;

    .time-details::before {
      left: -7px;
    }

    .time-details .icon {
      left: -45px;
    }
  }
}

@media (width < 1150px) {
  .time-wrapper .center-line {
    left: 35px;
  }

  .time-wrapper .row {
    margin: 30px 0 30px 60px;
  }

  .time-wrapper .row .time-details {
    width: 100%;
    margin-block: 1rem;
  }

  .time-wrapper .row01 .time-details::before {
    left: -7px;
  }

  .time-wrapper .row01 .time-details .icon {
    left: -46.5px;
  }

  .time-wrapper .row02 .time-details .icon {
    left: -46px;
  }
}

@media (width < 700px) {
  .timeline {
    margin: 4rem auto;
  }

  .time-wrapper .row {
    margin: 0;
  }

  .time-wrapper .center-line {
    display: none;
  }

  .time-wrapper .row01 .time-details::before,
  .time-wrapper .row02 .time-details::before {
    display: none;
  }

  .time-wrapper .row01 .time-details .icon,
  .time-wrapper .row02 .time-details .icon {
    display: none;
  }
}

/* Gallerij ------------------------------------------------------------------------------------ */

.gallery {
  inline-size: min(100% - 2rem, 1900px);
  margin-inline: auto;

  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  padding: 5rem 1.5rem;

  .gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 0.5rem;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);

    img {
      inline-size: 100%;
      block-size: 100%;
      object-fit: cover;
      aspect-ratio: 1;
      cursor: pointer;
    }
  }
}

/* Lightbox ------------------------------------------------------------------------------------ */

.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 1000;
}

.lightbox.active {
  display: flex;
  justify-content: center;
  align-items: center;
}

.lightbox-img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
}

.close-lightbox {
  position: absolute;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 30px;
  cursor: pointer;
}

.prev-btn,
.next-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  padding: 1rem;
  border: none;
  cursor: pointer;
  font-size: 20px;
  font-weight: 700;
}

.prev-btn {
  left: 20px;
}

.next-btn {
  right: 20px;
}

/* Form ---------------------------------------------------------------------------------------- */

.contact-form {
  width: min(100% - 2rem, 1200px);
  margin: 2rem auto 5rem;
  padding: 2rem;
  background-color: var(--clr-100);
  border-radius: 0.5rem 1rem;
  box-shadow: var(--bs01);

  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;

  @media (width < 900px) {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

fieldset .form-group label {
  margin-block: 0;
}

fieldset {
  padding: 0;
  border: 0;

  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: inherit;

  @media (width < 900px) {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.form-group {
  display: grid;
  grid-auto-rows: min-content;
}

.form-group label {
  cursor: pointer;
}

.span-all {
  grid-column: 1 / -1;
}

input,
textarea,
.form-group:has([type='radio']) {
  padding: 0.5em 1em;
  border: 1px solid var(--clr-600);
  border-radius: 6px;

  &:focus-visible {
    background-color: var(--clr-200);
    outline: none;
  }
}

.form-group:has([type='radio']) {
  position: relative;

  label::after {
    content: '';
    position: absolute;
    inset: 0;
    cursor: pointer;
  }
}

textarea {
  box-sizing: content-box;
  resize: block;
  block-size: 3lh;
}

.form-group:has([type='radio'], [type='checkbox']) {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.form-group:has([type='checkbox']) .error-text {
  flex-grow: 1;
  text-align: right;

  @media (width < 900px) {
    text-align: center;
  }
}

.req,
.error-text,
#successMsg {
  color: var(--clr-accent);
}

form button {
  inline-size: max-content;
  border: none;

  @media (width < 900px) {
    inline-size: 100%;
  }
}

/* Footer -------------------------------------------------------------------------------------- */

footer {
  background-color: var(--clr-600);
}

.footerTop {
  inline-size: 100%;
  block-size: 50px;
  clip-path: polygon(100% 0%, 100% 100%, 0% 100%);
  background-color: var(--clr-600);
}

.footerWrapper {
  inline-size: min(100%, 1600px);
  margin-inline: auto;
  padding: 6rem 3rem 2rem;

  display: grid;
  grid-template-columns: 1.5fr repeat(2, 0.75fr) 1fr;

  column-gap: 1rem;
  row-gap: 3rem;

  ul:first-child {
    align-self: center;
  }

  ul h3 {
    margin-block: 0.25rem 1rem;
  }

  ul li {
    margin-block: 0.5rem;
  }

  img {
    inline-size: 275px;
    margin-inline-start: -1.5rem;
  }

  @media (width < 1150px) {
    grid-template-columns: 1fr repeat(2, 0.5fr) 1fr;
    column-gap: 1rem;
    padding: 4rem 2rem 2rem;
  }

  @media (width < 900px) {
    grid-template-columns: repeat(2, 1fr);
    padding: 4rem 1rem 2rem;

    img {
      grid-area: 1 / span 2;
    }

    ul {
      justify-self: start;
    }

    .links {
      grid-area: 2 / span 1;
    }

    .webInfo {
      grid-area: 2 / span 1;
    }

    .contact {
      grid-area: 3 / span 2;
    }

    .copyright {
      grid-area: 4 / span 2;
    }

    .copyright {
      flex-direction: column;
      align-items: start;
      padding-block-start: 2rem;
    }
  }
}

.copyright {
  padding-block-start: 2rem;
  border-block-start: 1px dashed var(--clr-300);
  grid-area: 2 / 1 / 2 / -1;

  display: flex;
  justify-content: space-between;
  align-items: center;

  &.copyright p {
    margin: 0;
  }

  @media (width < 900px) {
    grid-area: 4 / span 2;
    flex-direction: column;
    align-items: start;
    padding-block-start: 2rem;
  }
}