/* RESET */
*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family: Arial, sans-serif;
  background:#0f172a;
  color:white;
}

/* HEADER */
header{
  text-align:center;
  padding:20px;
}

h1{
  color:#00e676;
  animation:glow 2s infinite alternate;
}

@keyframes glow{
  from{ text-shadow:0 0 5px #00e676; }
  to{ text-shadow:0 0 20px #00e676; }
}

/* SECTION */
section{
  padding:20px;
}

h2{
  color:#00e676;
  margin-bottom:10px;
}

/* GRID (CITY CARDS) */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:15px;
}

/* CARD */
.card{
  padding:20px;
  border-radius:10px;
  text-align:center;

  opacity:0;
  transform:translateY(30px);
  animation:fadeUp 0.8s ease forwards;
}

/* Animation delay */
.card:nth-child(1){animation-delay:0.1s;}
.card:nth-child(2){animation-delay:0.2s;}
.card:nth-child(3){animation-delay:0.3s;}
.card:nth-child(4){animation-delay:0.4s;}
.card:nth-child(5){animation-delay:0.5s;}

@keyframes fadeUp{
  to{
    opacity:1;
    transform:translateY(0);
  }
}

/* AQI COLORS */
.good{background:green;}
.mod{background:orange;}
.poor{background:red;}
.vpoor{background:purple;}

/* FLEX SECTION (TEXT + IMAGE) */
.flex-section{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:30px;
  padding:20px;
}

/* TEXT ANIMATION */
.text{
  flex:1;

  opacity:0;
  transform:translateX(-50px);
  animation:fadeLeft 1s ease forwards;
}

@keyframes fadeLeft{
  to{
    opacity:1;
    transform:translateX(0);
  }
}

/* IMAGE */
.image{
  flex:1;
  text-align:center;
}

.image img{
  width:70%;
  max-width:200px;
  border-radius:10px;

  opacity:0;
  transform:translateX(50px);
  animation:fadeSlide 1s ease forwards;
}

/* IMAGE ANIMATION */
@keyframes fadeSlide{
  to{
    opacity:1;
    transform:translateX(0);
  }
}

/* HOVER EFFECT */
.image img:hover{
  transform:scale(1.05);
  transition:0.3s;
}

/* LIST */
ul{
  line-height:1.8;
}

/* FOOTER */
footer{
  text-align:center;
  padding:20px;
  margin-top:20px;
}

/* RESPONSIVE */
@media (max-width:768px){
  .flex-section{
    flex-direction:column;
  }
}