@import url("https://fonts.googleapis.com/css2?family=Inter:wght@100;200;300;400;500;600;700;800;900&display=swap");

:root {
  font-family: "Inter", sans-serif;
  --page-background: #222;
  --flag-width: 300px;
}

html,
body {
  margin: 0;
  padding: 32px 16px;
  background: var(--page-background);
  color: white;
}

body {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.flag {
  width: var(--flag-width);
  aspect-ratio: 4/3;
  background: gainsboro;
  position: relative;
}

.flag::after {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.flag_title {
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 1px;
}

/* Italy */

.flag.flag--italy {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.flag.flag--italy :first-child {
  background: green;
}

.flag.flag--italy :nth-child(2) {
  background: white;
}

.flag.flag--italy :nth-child(3) {
  background: red;
}

/* Ukraine */

.flag.flag--ukraine {
  display: grid;
  grid-template-rows: repeat(2, 1fr);
}

.flag.flag--ukraine :first-child {
  background: blue;
}

.flag.flag--ukraine :nth-child(2) {
  background: yellow;
}

/* Kuwait */

.flag.flag--kuwait {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
}

.flag.flag--kuwait :first-child {
  background: green;
}

.flag.flag--kuwait :nth-child(2) {
  background: white;
}

.flag.flag--kuwait :nth-child(3) {
  background: red;
}

.flag.flag--kuwait :nth-child(4) {
  content: "";
  background: black;
  position: absolute;
  width: 30%;
  height: 100%;
  clip-path: polygon(0 0, 76% 33.333%, 76% 66.667%, 0% 100%);

  /* outra solução seria calcular as posições dos vértices com base na largura e altura do container */
  /* clip-path: polygon(0 0,100% calc(100%/3),100% calc(200%/3),0 100%); */
}

/* bangladesh */

.flag.flag--bangladesh {
  background: #125512;
}

.flag.flag--bangladesh::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 30%;
  height: 40%;
  background: red;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

/* Portugal */

.flag.flag--portugal {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.flag.flag--portugal .green {
  grid-column: 1 / 3;
  background: green;
}

.flag.flag--portugal .red {
  grid-column: 3 / 6;
  background: red;
}

.flag.flag--portugal .brasao {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-80%, -50%);
  width: 35%;
  z-index: 9999;
}

/* Japan */

.flag.flag--japan {
  background: white;
}

.flag.flag--japan::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 30%;
  height: 40%;
  background: red;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

/* Greece */

.flag.flag--greece {
  position: relative;
  width: 100%; /* ocupa todo o container */
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Listras */
.flag.flag--greece .stripe {
  background-color: #055eb0;
  width: 100%;
  height: calc(100% / 9);
}
.flag.flag--greece .stripe--white {
  background-color: white;
}

.flag.flag--greece .square {
  position: absolute;
  top: 0;
  left: 0;
  width: 40%; /* largura do quadrado */
  height: calc(100% * 5 / 9); /* ocupa altura de 5 listras */
  background-color: #055eb0;
}

/* Cruz branca dentro do quadrado */
.flag.flag--greece .square::before,
.flag.flag--greece .square::after {
  content: "";
  position: absolute;
  background: white;
}

.flag.flag--greece .square::before {
  width: 20%; /* 1/5 da largura do quadrado */
  height: 100%;
  left: 40%; /* centralizado */
  top: 0;
}

.flag.flag--greece .square::after {
  width: 100%;
  height: 20%; /* 1/5 da altura do quadrado */
  top: 40%; /* centralizado */
  left: 0;
}

/* EUA */

.flag.flag--eua {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Listras */
.flag.flag--eua .stripe {
  background-color: #9b1c2c;
  width: 100%;
  height: calc(100% / 13);
}
.flag.flag--eua .stripe--white {
  background-color: white;
}

/* Cantão azul */
.flag.flag--eua .USA-stars {
  position: absolute;
  top: 0;
  left: 0;
  width: calc(100% / 2);
  height: calc(100% * 6 / 12);
  background-color: #041e42;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  padding: 0 2%;
  box-sizing: border-box;
  z-index: 9999;
}

/* Linha de estrelas */
.flag.flag--eua .star-row {
  display: flex;
  justify-content: space-between;
}

/* Linhas com 5 estrelas deslocadas */
.flag.flag--eua .star-row--five {
  justify-content: space-around; /* centraliza com espaços iguais */
}

/* Estrelas */
.flag.flag--eua .star {
  font-size: 8%; /* relativo ao container da bandeira */
  color: white;
  line-height: 1; /* remove espaçamento extra */
}