style.css

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap");
* {
  margin: 0;
  box-sizing: border-box;
  user-select: none;
}

html {
  font-size: 62.5%;
}

:root {
  --container-height: 90%;
  --container-width: 90%;
  --component-background: rgba(0, 0, 0, 0.45);
}

body {
  background: url("background.png");
  background-size: cover;
  background-attachment: fixed;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: "Poppins", sans-serif;
}

.container {
width: 1440px;
height: 1024px;

background: rgba(0, 0, 0, 0.5);
border-radius: 20px;
  transition: 0.3s ease;
  backdrop-filter: blur(30px);
  border-radius: 15px;
  width: var(--container-width);
  height: var(--container-height);
  position: relative;
}

header {
  display: flex;
  justify-content: space-between;
  width: 100%;
  height: 30px;
  position: relative;
}

section.window--buttons {
  position: absolute;
  top: 15px;
  left: 15px;
}
section.window--buttons .window__close {
  width: 1.5rem;
  height: 1.5rem;
  background: #f00;
  display: inline-block;
  border-radius: 50%;
  transition: 0.3s ease;
}
section.window--buttons .window__close:hover {
  transform: scale(1.2);
}
section.window--buttons .window__minimize {
  margin-left: 5px;
  width: 1.5rem;
  height: 1.5rem;
  background: #f57c00;
  display: inline-block;
  border-radius: 50%;
  transition: 0.3s ease;
}
section.window--buttons .window__minimize:hover {
  transform: scale(1.2);
}
section.window--buttons .window__maximize {
  margin-left: 5px;
  width: 1.5rem;
  height: 1.5rem;
  background: #4caf50;
  display: inline-block;
  border-radius: 50%;
  transition: 0.3s ease;
}
section.window--buttons .window__maximize:hover {
  transform: scale(1.2);
}

aside {
  overflow: scroll;
  height: 90%;
  margin-top: 20px;
  float: left;
  width: 200px;
  position: sticky;
  top: 0;
}
aside button {
  display: block;
  margin-top: 7px;
  margin-left: 15px;
  padding: 0.7rem 4rem;
  font-family: "Poppins", sans-serif;
  font-size: 1.5rem;
  background: none;
  width: 170px;
  border-radius: 10px;
  border: 0;
  color: white;
  transition: 0.2s ease;
  cursor: pointer;
}
aside button:hover {
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(20px);
}
aside button.active {
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(20px);
}
aside input[type=text] {
  font-size: 1.5rem;
  width: 80%;
  margin-left: 15px;
  padding: 0.9rem;
  border-radius: 10px;
  background: #000;
  color: #fff;
  font-family: "Poppins", sans-serif;
  border: 0;
  outline: 0;
  text-align: center;
  transition: 0.3s ease;
  background: rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: white;
}
aside input[type=text]::-webkit-input-placeholder {
  text-align: center;
}
aside input[type=text]:-moz-placeholder {
  /* Firefox 18- */
  text-align: center;
}
aside input[type=text]::-moz-placeholder {
  /* Firefox 19+ */
  text-align: center;
}
aside input[type=text]:-ms-input-placeholder {
  text-align: center;
}
aside .profile {
  position: absolute;
  left: 15px;
  display: flex;
  bottom: 15px;
  align-items: center;
}
aside .profile .profile--pic {
  width: 4rem;
  border-radius: 50%;
}
aside .profile h1 {
  color: #fff;
  font-weight: 400;
  margin-left: 10px;
  font-size: 1.3rem;
}

.content {
  color: white;
  padding: 15px;
  border-radius: 30px;
  height: 90%;
  margin-right: 20px;
  overflow: scroll;
}
.content .ideas {
  display: flex;
}
.content .ideas .idea {
  background: var(--component-background);
  width: 31%;
  padding: 20px;
  border-radius: 20px;
  backdrop-filter: blur(20px);
  transition: 0.3s ease;
  position: relative;
}
.content .ideas .idea:nth-of-type(2) {
  margin-left: 15px;
}
.content .ideas .idea p {
  color: gray;
  font-size: 1.2rem;
}
.content .ideas .idea:hover {
  transform: scale(1.06);
}
.content .updates {
  margin-top: 20px;
}
.content .updates h1:nth-of-type(1) {
  font-size: 2.2rem;
}
.content .updates .update {
  width: 100%;
  background: var(--component-background);
  padding: 1.3rem 0.7rem;
  border-radius: 10px;
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: 0.4s ease;
}
.content .updates .update:hover {
  transform: scale(1.03);
}
.content .updates .update .updt-left {
  display: flex;
  align-items: center;
}
.content .updates .update .updt-left h1 {
  font-size: 1.7rem;
  margin-left: 10px;
}
.content .updates .update .updt-left img {
  width: 35px;
}
.content .updates .update .buttons button {
  background: none;
  color: dodgerblue;
  border: 0;
  font-size: 1.6rem;
  transition: 0.2s ease;
  cursor: pointer;
  font-family: "Poppins", sans-serif;
}
.content .updates .update .buttons button:hover {
  color: blue;
}
.content .trending {
  margin-top: 20px;
}
.content .trending h1:nth-last-of-type(1) {
  font-size: 2.2rem;
}
.content .trending .grid {
  display: grid;
  grid-template-rows: repeat(4, 25%);
  grid-template-columns: 25% 25% 25% 25%;
  margin-top: 10px;
  gap: 5px;
}
.content .trending .grid .grid__app {
  background: var(--component-background);
  padding: 13px;
  display: inline-block;
  display: flex;
  height: fit-content;
  border-radius: 10px;
  justify-content: space-between;
}
.content .trending .grid .grid__app.margin {
  margin-top: 20px;
}
.content .trending .grid .grid__app h1 {
  font-size: 1.7rem;
}
.content .trending .grid .grid__app button {
  background: dodgerblue;
  color: #fff;
  border: 0;
  outline: 0;
  border-radius: 30px;
  width: 30%;
  cursor: pointer;
}
.content .links {
  display: grid;
  grid-template-columns: repeat(2, 50%);
  grid-template-rows: repeat(2, 50%);
}
.content .links a {
  text-align: center;
  color: #fff;
  font-size: 1.4rem;
}
.content .links a:nth-of-type(3), .content .links a:nth-of-type(4) {
  margin-top: 7px;
}

@media (max-width: 768px) {
  .content .trending .grid {
    grid-template-columns: repeat(2, 50%);
    grid-template-rows: repeat(4, 25%);
  }

  aside {
    display: none;
  }

  .links {
    margin-top: 50px;
    display: flex;
    flex-direction: column;
  }
}