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

#wrapper{
    height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
}

.container{
    height: 100%;
    max-width: 1200px;
    margin: 0 auto ;  /*Centers the block horizontally*/
    padding: 20px;
}

/* container ke andar jo h1 wali heading hai... */
/* You could also right h1{} directly. */
.container h1{
     margin: 20px auto;   /* Height x Width */
     margin-bottom: 20px;
     text-align: center;
     font-size: 3rem ;
}

.gallery{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.card{
    width: 32%;
    position: relative;
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
}

/* Ab card ke andar jo image hai, uski baat karte hai... */
.card img{
    width: 100%; /*Jitni parent element(i.e. card) ki width thi, utni width kardo.*/
    height: 100%; /*Jitni parent element(i.e. card) ki height thi, utni height kardo.*/
    filter: grayscale(100%);
    box-shadow: 0 0 20px #333;
    object-fit: cover;
    
    transition: 1.15s ease; /* Smooth transition for filter */
    
}

.card:hover{
    transform: scale(1.03);  /*Scale it 1.03 times*/
    transition: 0.3s;
    filter: drop-shadow(0 0 10px #333);
}

.card:hover img{
      filter: grayscale(0%);
      
}

.card figcaption{
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 25px;
    width: 100%;
    height: 20%;
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    opacity: 0;     /*means transperancy = 100%*/
    border-radius: 0 0 10px 10px;
    background: linear-gradient(0deg, rgba(0,0,0,0.5) 0%, rgba(255,255,255,0) 100%);
    transition: 0.3s;

}

.card:hover figcaption{
    opacity: 1;
    transform: scale(1.03);
    /* transition: 0.5s; */
}