```css
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f6f5f1;
  color: #111;
  font-family: Arial, Helvetica, sans-serif;
}

.page {
  min-height: 100vh;
}


/* ========================= */
/* HEADER */
/* ========================= */

header {
  height: 72px;
  padding: 0 42px;

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

  border-bottom: 1px solid #d3d1ca;
  background: #f6f5f1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;

  color: #111;
  text-decoration: none;
}

.brand .logo {
  width: 28px;
  height: 28px;

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

  border: 1px solid #111;

  font-size: 14px;
  font-weight: 700;
}

.brand strong {
  font-size: 11px;
  letter-spacing: 2px;
}

nav {
  display: flex;
  gap: 34px;
}

nav a {
  color: #777;
  text-decoration: none;

  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;

  transition: color .2s ease;
}

nav a:hover,
nav a.active {
  color: #111;
}


/* ========================= */
/* HERO */
/* ========================= */

.teams-hero {
  padding: 90px 60px 75px;

  border-bottom: 1px solid #d3d1ca;
}

.label {
  margin: 0;

  color: #777;

  font-size: 10px;
  letter-spacing: 2px;
}

.teams-hero h1 {
  margin: 18px 0 22px;

  font-size: 58px;
  line-height: .95;
  font-weight: 500;
  letter-spacing: -2px;
}

.description {
  max-width: 600px;
  margin: 0;

  color: #666;

  font-size: 15px;
  line-height: 1.7;
}


/* ========================= */
/* COUNTRY */
/* ========================= */

.league-section {
  padding: 0 60px 80px;

  border-bottom: 1px solid #d3d1ca;
}

.country-header {
  margin: 0 -60px;

  padding: 28px 60px;

  display: flex;
  align-items: center;
  gap: 18px;

  background: #164a73;
  color: white;
}

.country-header .label {
  color: rgba(255,255,255,.65);
}

.country-header h2 {
  margin: 8px 0 0;

  font-size: 30px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -1px;
}


/* FLAG BOX */

.country-visual {
  width: 54px;
  height: 40px;

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

  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);

  flex-shrink: 0;
  overflow: hidden;
}

.country-visual img {
  width: 100%;
  height: 100%;

  display: block;

  object-fit: cover;
}


/* ========================= */
/* LEAGUE */
/* ========================= */

.league {
  border-bottom: 1px solid #d3d1ca;
}

.league summary {
  min-height: 105px;
  padding: 18px 25px;

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

  cursor: pointer;
  list-style: none;

  background: #111;
  color: white;
}

.league summary::-webkit-details-marker {
  display: none;
}


/* LEAGUE TITLE */

.league-title {
  display: flex;
  align-items: center;
  gap: 18px;
}


/* COMPETITION LOGO BOX */

.competition-logo {
  width: 54px;
  height: 54px;

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

  background: #f6f5f1;
  border: 1px solid #333;

  flex-shrink: 0;
}

.competition-logo img {
  width: 38px;
  height: 38px;

  display: block;

  object-fit: contain;
}


/* LEAGUE TEXT */

.league-text {
  display: flex;
  flex-direction: column;
}

.league-country {
  margin-bottom: 7px;

  color: #999;

  font-size: 8px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
}

.league h3 {
  margin: 0;

  font-size: 24px;
  font-weight: 500;
  letter-spacing: -.5px;
}

.team-count {
  margin-top: 7px;

  color: #888;

  font-size: 9px;
  letter-spacing: .8px;
}


/* ARROW */

.arrow {
  width: 38px;
  height: 38px;

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

  border: 1px solid #555;

  color: white;

  font-size: 17px;

  transition:
    transform .25s ease,
    background .2s ease;
}

.league summary:hover .arrow {
  background: white;
  color: #111;
}

.league[open] .arrow {
  transform: rotate(180deg);
}


/* ========================= */
/* TEAM LIST */
/* ========================= */

.teams-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);

  background: #f6f5f1;

  border-left: 1px solid #d3d1ca;
  border-right: 1px solid #d3d1ca;
}


/* ========================= */
/* TEAM */
/* ========================= */

.team {
  min-height: 72px;
  padding: 0 22px;

  display: flex;
  align-items: center;
  gap: 18px;

  color: #111;
  text-decoration: none;

  border-bottom: 1px solid #d3d1ca;
  border-right: 1px solid #d3d1ca;

  transition:
    background .2s ease,
    padding-left .2s ease;
}

.team:nth-child(even) {
  border-right: none;
}

.team:hover {
  background: #eeece7;
  padding-left: 28px;
}


/* TEAM LOGO */

.team img {
  width: 32px;
  height: 32px;

  flex-shrink: 0;

  display: block;

  object-fit: contain;
}


/* TEAM NAME */

.team span {
  font-size: 15px;
  font-weight: 700;
}


/* ========================= */
/* FOOTER */
/* ========================= */

footer {
  padding: 40px 60px;

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

  border-top: 1px solid #d3d1ca;
  background: #f6f5f1;
}

footer strong {
  font-size: 10px;
  letter-spacing: 2px;
}

footer span {
  color: #888;
  font-size: 10px;
}


/* ========================= */
/* RESPONSIVE */
/* ========================= */

@media (max-width: 800px) {

  header {
    padding: 0 25px;
  }

  nav {
    gap: 18px;
  }

  nav a {
    font-size: 9px;
  }

  .league-section {
    padding-left: 35px;
    padding-right: 35px;
  }

  .country-header {
    margin-left: -35px;
    margin-right: -35px;

    padding-left: 35px;
    padding-right: 35px;
  }

}


@media (max-width: 600px) {

  header {
    height: 65px;
  }

  .brand strong {
    display: none;
  }

  nav {
    gap: 14px;
  }

  nav a {
    font-size: 8px;
    letter-spacing: 1px;
  }

  .teams-hero {
    padding: 65px 25px 55px;
  }

  .teams-hero h1 {
    font-size: 42px;
  }

  .league-section {
    padding: 0 25px 60px;
  }

  .country-header {
    margin-left: -25px;
    margin-right: -25px;

    padding-left: 25px;
    padding-right: 25px;
  }

  .country-visual {
    width: 48px;
    height: 34px;
  }

  .league summary {
    min-height: 90px;

    padding-left: 18px;
    padding-right: 18px;
  }

  .league-title {
    gap: 13px;
  }

  .competition-logo {
    width: 46px;
    height: 46px;
  }

  .competition-logo img {
    width: 32px;
    height: 32px;
  }

  .league h3 {
    font-size: 21px;
  }

  .teams-list {
    grid-template-columns: 1fr;
  }

  .team {
    min-height: 64px;
    border-right: none;
  }

  .team span {
    font-size: 15px;
  }

  footer {
    padding: 30px 25px;

    flex-direction: column;
    align-items: flex-start;

    gap: 10px;
  }

}
```