*{box-sizing:border-box;}
body{
    margin:0;
    font-family:Arial, sans-serif;
    background:#f4f7fb;
    color:#333;
}
.container{
    max-width:1200px;
    margin:auto;
    padding:20px;
}
.month-nav{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-bottom:20px;
}
.month-nav a{
    padding:8px 12px;
    background:#eaf3ff;
    border-radius:8px;
    text-decoration:none;
    color:#1e90ff;
    font-size:14px;
}
.month-nav a.active{
    background:#1e90ff;
    color:white;
}
.grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
}
@media(max-width:900px){
    .grid{grid-template-columns:1fr;}
}
.card{
    background:white;
    padding:20px;
    border-radius:12px;
    box-shadow:0 4px 12px rgba(0,0,0,0.08);
}
.kpi-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
    gap:15px;
    margin-bottom:20px;
}
.kpi{
    background:#eaf3ff;
    padding:15px;
    border-radius:10px;
    text-align:center;
}
.up{color:#2ecc71;font-weight:bold;}
.down{color:#e74c3c;font-weight:bold;}
button{
    background:#1e90ff;
    color:white;
    padding:10px 15px;
    border:none;
    border-radius:8px;
    cursor:pointer;
}
a{color:#1e90ff;text-decoration:none;}