body{
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;

    background: linear-gradient(135deg,#dbeafe,#fbcfe8);

    min-height: 100vh;
}

.tracker-card{
    width: 420px;

    background: rgba(255, 255, 255, 0.432);

    backdrop-filter: blur(12px);

    border-radius: 25px;

    color: #333;

    box-shadow: 0 8px 25px rgba(0,0,0,0.15);

    border: 1px solid rgba(255,255,255,0.4);
}

h1{
    font-weight: bold;
    color: #2563eb;
}

h4,h5,h6{
    color: #444;
}

#balance{
    color: #ec4899;

    font-size: 2.3rem;

    font-weight: bold;
}

.income-box{
    background: linear-gradient(135deg,#93c5fd,#60a5fa);

    color: white;

    box-shadow: 0 4px 12px rgba(96,165,250,0.3);
}

.expense-box{
    background: linear-gradient(135deg,#f9a8d4,#f472b6);

    color: white;

    box-shadow: 0 4px 12px rgba(244,114,182,0.3);
}

.form-control{
    border-radius: 12px;

    padding: 12px;

    border: none;

    background: rgba(255,255,255,0.8);
}

.form-control:focus{
    box-shadow: 0 0 10px rgba(236,72,153,0.4);

    border: none;
}

.btn-warning{
    border-radius: 12px;

    padding: 10px;

    transition: 0.3s;

    background: linear-gradient(135deg,#60a5fa,#f472b6);

    border: none;

    color: white;

    font-weight: bold;
}

.btn-warning:hover{
    transform: scale(1.03);

    opacity: 0.9;
}

.transaction-item{
    display: flex;

    justify-content: space-between;

    align-items: center;

    background: rgba(255,255,255,0.4);

    color: #333;

    margin-bottom: 10px;

    border-radius: 12px;

    padding: 10px;

    transition: 0.3s;
}

.transaction-item:hover{
    transform: translateY(-2px);
}

.plus{
    border-right: 5px solid #60a5fa;
}

.minus{
    border-right: 5px solid #f472b6;
}

.delete-btn{
    border: none;

    background: linear-gradient(135deg,#f472b6,#ec4899);

    color: white;

    padding: 5px 10px;

    border-radius: 8px;

    cursor: pointer;

    transition: 0.3s;
}

.delete-btn:hover{
    transform: scale(1.08);
}