/* Reset */
html {
  box-sizing: border-box;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;

  box-sizing: inherit;

  text-decoration: none;
  list-style: none;
  border: none;
}

/* General Typography */
:root {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  font-size: 18px;
  line-height: 1.4;
}

h2 {
  font-size: 1.6rem;
  font-weight: 500;
  text-align: center;

  margin-top: 3rem;
  margin-bottom: 1.5rem;
}
h2:before, h2:after {
  content: "";

  height: 2px;
  width: 10%;
  max-width: 2em;
  background: #ddd;
  display: inline-block;
  vertical-align: middle;
}
h2:before {
  margin-right: 0.5rem;
}
h2:after {
  margin-left: 0.5rem;
}

a {
  color: #043788 !important;
}

article h3 {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
}

article p, article ul {
  margin-bottom: 1rem;
}

article ul {
  margin-left: 1.2rem;
}
article li {
  list-style: square;
}

.article--error {
  text-align: center;
}

/* Container styling */
html {
  height: 100%;
}

body {
  max-width: 45rem;
  margin: 0 auto;
  padding: 4rem 4rem 2rem;

  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

main {
  flex: 1 0 0; /* Fill all available vertical space */
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
}

.header__logo {
  width: 19rem;
  height: 6rem;
  max-width: 100%;

  position: relative;
  display: flex;
  margin-right: 1rem;
}
.header__logo a {
  display: contents;
}
.header__logo a::before {
  /* Make the link behave like display: block */
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.header__logo img {
  display: block;

  filter: drop-shadow(0 0 3px #bbb);
}
.header__photo {
  margin-right: 1.5rem;

  border-radius: 7%;
}

.header__aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-end;
}

.header__aside span {
  font-weight: 600;
  font-size: 1.5rem;
  text-align: right;

  margin-bottom: 1rem;
}

.header__links {
  display: flex;
}
.header__links a {
  display: block;
  width: 2rem;
  height: 2rem;
}
.header__links a:not(:first-child) {
  margin-left: 0.8rem;
}

/* Main content */
.linklist {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr 3rem 1fr 3rem 1fr;
  grid-template-columns: 1fr 1fr 1fr;
  grid-auto-flow: row;

  justify-items: center;
  grid-gap: 3rem;
}
.linklist--featured {
  -ms-grid-columns: 1fr 1fr;
  grid-template-columns: 1fr 1fr;
}

.linklist li {
  text-align: center;
  font-weight: 500;
  font-size: 1.1rem;
}

.linklist small {
  display: block;
  font-weight: normal;
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.linklist img {
  width: 100%;
  height: 4rem;

  display: block;
  margin: 0 auto;
  margin-bottom: 0.8rem;

  transition: transform ease 0.1s;
}
.linklist a:hover img, .linklist a:focus img {
  transform: scale(1.05);
}

/* Footer */
footer {
  margin-top: 3rem;

  text-align: center;
  font-size: 0.9rem;
}

/* Media queries */
@media (max-width: 680px) {
  .header {
    flex-direction: column;
  }

  .header__aside {
    margin-top: 1.5rem;
    flex-direction: row;
    align-items: flex-start;
  }

  .header__aside span {
    text-align: left;

    margin-bottom: 0;
    margin-right: 2rem;
  }
}

@media (max-width: 600px) {
  body {
    padding: 2rem 2rem 1rem;
  }

  .header__logo {
    height: min(22vw, 6rem);
  }
}

@media (max-width: 420px) {
  .linklist {
    -ms-grid-columns: 1fr;
    grid-template-columns: 1fr;
    grid-gap: 2rem;
  }
}

@media (max-width: 380px) {
  .header__aside {
    flex-direction: column;
  }

  .header__aside span {
    margin-right: 0;
    margin-bottom: 0.5rem;
  }
}

@media (max-width: 350px) {
  h2:before, h2:after {
    content: initial;
  }
}

/* Grid auto-placement polyfill for IE11 */
.linklist li:nth-child(2) {
  -ms-grid-row: 1;
  -ms-grid-column: 2;
}
.linklist li:nth-child(3) {
  -ms-grid-row: 1;
  -ms-grid-column: 3;
}
.linklist li:nth-child(4) {
  -ms-grid-row: 2;
  -ms-grid-column: 1;
}
.linklist li:nth-child(5) {
  -ms-grid-row: 2;
  -ms-grid-column: 2;
}
.linklist li:nth-child(6) {
  -ms-grid-row: 2;
  -ms-grid-column: 3;
}

.linklist--featured li:nth-child(2) {
  -ms-grid-row: 1;
  -ms-grid-column: 2;
}
.linklist--featured li:nth-child(3) {
  -ms-grid-row: 2;
  -ms-grid-column: 1;
}
.linklist--featured li:nth-child(4) {
  -ms-grid-row: 2;
  -ms-grid-column: 2;
}
.linklist--featured li:nth-child(5) {
  -ms-grid-row: 3;
  -ms-grid-column: 1;
}
.linklist--featured li:nth-child(6) {
  -ms-grid-row: 3;
  -ms-grid-column: 2;
}