html {
  box-sizing: border-box;
}
* {
  margin: 0;
  padding: 0;
}
*,
*:before,
*:after {
  box-sizing: border-box;
}
input,
textarea,
select,
button {
  outline: none;
}
input {
  line-height: normal;
}
label,
button {
  cursor: pointer;
}
a {
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
body {
  font-size: 16px;
  font-family: "Poppins", sans-serif;
}
.layout-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.layout {
  display: grid;
  /* grid-template-columns: column-size column-size .... ; */
  grid-template-columns: 200px 200px 100px;
  grid-template-columns: calc(50% - 40px) calc(20% - 40px) 30%;
  grid-template-columns: 33.33% 33.33% 33.33%;
  grid-template-columns: 1fr 1fr 1fr;
  grid-column-gap: 40px;
  grid-row-gap: 20px;
  grid-gap: 20px;
  grid-template-rows: 200px 600px;
  grid-template-rows: auto auto;
  /* fr = free space */
  /* grid-column-gap: 40px; */
  /* gap count: column count - 1 */
  /* grid-gap: grid-row-gap grid-column-gap */
  /* track line bắt đầu từ số 1*/
  /* Số cột 3 -> track line = số cột + 1 */
}
/* 4 columns
800px
row1: 350
row2: 100
row3: 350
*/
.layout2 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-template-rows: 350px 100px 350px;
  grid-gap: 30px;
  padding: 30px;
  grid-template-areas:
    "h1 h1 h2 h3"
    "h4 h5 h2 h3"
    "h4 h5 h6 h6";
}
.layout-item {
  border-radius: 10px;
  overflow: hidden;
}
.layout-item:first-child {
  grid-area: h1;
}
.layout-item:nth-child(2) {
  grid-area: h2;
}
.layout-item:nth-child(3) {
  grid-area: h3;
}
.layout-item:nth-child(4) {
  grid-area: h4;
}
.layout-item:nth-child(5) {
  grid-area: h5;
}
.layout-item:last-child {
  grid-area: h6;
}
/* span 2 */
/* .layout-item:first-child {
  grid-column: 1/3;
  grid-column: 1 / span 2;
  grid-row: 1 / span 1;
}
.layout-item:nth-child(2),
.layout-item:nth-child(3) {
  grid-row: 1 / span 2;
  grid-row: 1 / span 2;
}
.layout-item:nth-child(4),
.layout-item:nth-child(5) {
  grid-row: 2 / span 2;
  grid-row: 2 / span 2;
}
.layout-item:last-child {
  grid-column: 3 / span 2;
} */
/* grid-template-areas: dùng cho phần tử cha
grid-area: dùng cho phần tử con

"h1 h1 h2 h3"
"h4 h5 h2 h3"
"h4 h5 h6 h6"
*/
.post-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  grid-gap: 25px;
  grid-template-areas:
    "h1 h2 h3"
    "h1 h4 h5";
  padding: 25px;
}
.post-item:first-child {
  grid-area: h1;
}
.post-item:nth-child(2) {
  grid-area: h2;
}
.post-item:nth-child(3) {
  grid-area: h3;
}
.post-item:nth-child(4) {
  grid-area: h4;
}
.post-item:nth-child(5) {
  grid-area: h5;
}
.post-image {
  border-radius: 12px;
  width: 100%;
  object-fit: cover;
  height: 200px;
  flex-shrink: 0;
}
.post-content {
  font-weight: 300;
  padding: 25px 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.post-image--large {
  height: auto;
}
.post-item {
  display: flex;
  flex-direction: column;
}
.post-title {
  font-size: 18px;
  font-weight: 400;
  margin-bottom: 20px;
  color: #3f2a78;
}
.post-time {
  color: #ccc;
  text-transform: uppercase;
}
/* card-list */
body {
  padding: 20px;
}
.cards {
  --spacing: 25px;
  --columns: 4;
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(-1 * var(--spacing));
}
@media screen and (max-width: 1023px) {
  .cards {
    --columns: 2;
  }
}
@media screen and (max-width: 767px) {
  .cards {
    --spacing: 15px;
    --columns: 1;
  }
}

.card {
  border-radius: 20px;
  overflow: hidden;
  background-color: white;
  box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
  width: calc(calc(100% / var(--columns)) - var(--spacing));
  margin-left: var(--spacing);
  margin-bottom: var(--spacing);
}
.card-image {
  height: 200px;
  width: 100%;
  object-fit: cover;
  flex-shrink: 0;
}
.card-top {
  padding: 25px;
}
.card-title {
  font-weight: 500;
  margin-bottom: 25px;
  word-break: break-all;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-word;
}
.card-user {
  display: flex;
  align-items: center;
}
.card-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 100rem;
  object-fit: cover;
  flex-shrink: 0;
}
.card-user-info {
  padding-left: 20px;
  flex: 1;
}
.card-user-top {
  display: flex;
  align-items: center;
  margin-bottom: 2px;
}
.card-user-name {
  font-weight: 500;
  font-size: 14px;
  line-height: 1;
}
.card-user-top ion-icon {
  color: #20e3b2;
  margin-left: 5px;
}
.card-user-game {
  color: #999;
  font-weight: 300;
  font-size: 13px;
}
.card-bottom {
  padding: 25px;
  border-top: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-live {
  color: white;
  display: flex;
  align-items: center;
  padding: 5px 15px;
  border-radius: 10px;
  background-color: #ff6651;
}
.card-live span {
  margin-left: 10px;
  font-size: 14px;
}
.card-watching {
  font-size: 13px;
  color: #999;
  font-weight: 300;
}
.card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-top {
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-user,
.card-bottom {
  margin-top: auto;
  flex-shrink: 0;
}
.card {
  display: flex;
  flex-direction: column;
}