body {
    background: #f8f9fa;
}

header {
    background: linear-gradient(135deg, #3679bc, #75899d);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.repo-card {
    transition: all 0.2s ease-in-out;
}
.repo-card:hover {
    transform: scale(1.03) translateY(-6px);
}

.hover-anim {
    box-shadow: 4px 4px 4px rgba(0,0,0,0.5);
    transition: all 0.2s ease-in-out;
}
.hover-anim:hover {
    transform: translateY(-5px);
}
.card-title {
    display: inline-block;
    position: relative;
}
.card-title::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -6px;
    left: 0;
    background-color: rgba(0,0,0, 0);
    transition: all 0.3s ease, background-color 0.5s ease;
}

.hover-anim:hover .card-title::after {
    width: 100%;
    background-color: currentColor;
}

/* Center-out underline animation - triggers on card hover */
.repo-card:hover .hover-anim-2::after {
    width: 100%;
    background-color: currentColor;
}

.hover-anim-2 {
    display: inline-block;
    position: relative;
    color: inherit;
}

.hover-anim-2::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 100%;
    transform: translateX(-100%);
    background-color: transparent;
    transition: all 0.3s ease;
}

#title {
    display: inline-block;
    position: relative;
    font-weight: bolder; 
    font-size: 72px;
    transition: all 0.3s ease-in-out;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    max-width: 300px;
}
#title:hover {
    transform:  scale(1.3) translateY(-10px);
}

._arrow {
    display: inline-flex;           
    justify-content: center;        
    align-items: center;            
    color: black;
    width: 3rem;                    
    height: 3rem;                   
    font-size: 2rem;                
    transform: rotate(-180deg);
    transition: transform 0.4s ease;
    cursor: pointer;
    background-color: #eee;        
    border-radius: 50%;             
}
._arrow:hover, ._arrow:active {
    background-color: lightgray;
    transform: rotate(0deg);
}

.btn-outline-success {
    background-color: #208bc8;  
    color: white;
    border-color: #1c94da;
    transition: background-color 0.2s linear, color 0.2s linear, border-color 0.2s linear;
}

.btn-outline-success,  .active {
    background-color: white;  
    color: #208bc8;
    border-color: #1c94da;
}

.container_ {
    background-color: #eee;
    padding: 15px 20px;
    margin-bottom: 10px;
    border-radius: 10px;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
    padding: 2px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background-color: #888;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #555;
}