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

body {
    min-height: 100vh;
    font-family: Inter, Arial, sans-serif;
    background: #f5f7fb;
    color: #1f2937;
    display: flex;
    justify-content: center;
    align-items: center;
}


/* Main Card */

#expenseTracker {
    width: min(900px, 95%);
    height: 90vh;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);

    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}


h1 {
    font-size: 32px;
    color: #111827;
}

p {
    color: #6b7280;
    margin-top: -12px;
}



/* Form */

#expenseForm {
    display: grid;
    grid-template-columns: repeat(3, 1fr) auto;
    gap: 15px;
    align-items: end;
}


label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 14px;
    color: #374151;
}


input,
select {
    height: 42px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    padding: 0 12px;
    font-size: 15px;
    outline: none;
    background: white;
}


input:focus,
select:focus {
    border-color: #2563eb;
}



button {
    height: 42px;
    border: none;
    border-radius: 10px;
    padding: 0 20px;
    cursor: pointer;
    background: #2563eb;
    color: white;
    font-size: 15px;
    transition: .2s;
}


button:hover {
    background: #1d4ed8;
}



/* Filters */

#sortFilter,
#categoryFilter {
    width: 150px;
}


body>main>label {
    display: inline-flex;
    margin-right: 15px;
}



/* Total */

#totalAmount {
    background: #f3f4f6;
    padding: 15px;
    border-radius: 12px;
    font-size: 20px;
}



/* List */

#expenseList {
    list-style: none;

    flex: 1;
    overflow-y: auto;

    display: flex;
    flex-direction: column;
    gap: 12px;
}


#expenseList li {
    display: grid;
    grid-template-columns: 1fr 120px 120px 80px 80px;
    align-items: center;
    gap: 5px;

    padding: 15px;
    background: #f9fafb;
    border-radius: 12px;

    border: 1px solid #e5e7eb;
}


#expenseList button {
    height: 35px;
    padding: 0 10px;
    font-size: 13px;
}


#expenseList button:last-child {
    background: #ef4444;
}


#expenseList button:last-child:hover {
    background: #dc2626;
}

#filters{
    display: flex;
    align-items: center;
    gap: 15px;
}



/* Mobile */

@media(max-width:700px) {

    body {
        align-items: flex-start;
        padding: 20px 0;
    }


    #expenseTracker {
        height: auto;
        min-height: 90vh;
        padding: 20px;
    }


    h1 {
        font-size: 26px;
    }


    #expenseForm {
        grid-template-columns: 1fr;
    }


    button {
        width: 100%;
    }


    body>main>label {
        width: 100%;
        margin: 0;
    }


    #sortFilter,
    #categoryFilter {
        width: 100%;
    }


    #expenseList li {
        grid-template-columns: 1fr;
        gap: 10px;
    }


    #expenseList button {
        width: 100%;
    }

}