:root{
--primary:#2c3e50;
--accent:#3498db;
--success:#27ae60;
--warn:#f39c12;
--danger:#e74c3c;
--bg:#f4f7f6;
}

body{font-family:sans-serif;background:var(--bg);margin:0;padding:20px}

.dashboard{
max-width:1000px;
margin:auto;
display:grid;
grid-template-columns:repeat(3,1fr);
gap:20px;
}

.header{
grid-column:1/-1;
background:var(--primary);
color:white;
padding:15px;
border-radius:10px;
text-align:center;
}

.card{
background:white;
padding:18px;
border-radius:10px;
box-shadow:0 2px 8px rgba(0,0,0,0.1);
border-top:5px solid var(--accent);
font-size:13px;
}

h3{margin:0 0 5px;color:var(--primary)}
.method-desc{
font-size:12px;
color:#555;
margin-bottom:10px;
border-bottom:1px solid #eee;
padding-bottom:8px;
}

label{display:block;margin-top:8px;font-weight:bold;font-size:12px}

input,select{
width:100%;
padding:6px;
border:1px solid #ddd;
border-radius:5px;
box-sizing:border-box;
font-size:12px;
}

button{
background:var(--accent);
color:white;
border:none;
padding:8px;
margin-top:10px;
border-radius:5px;
cursor:pointer;
width:100%;
font-size:12px;
font-weight:bold;
}

.result{
margin-top:10px;
padding:10px;
border-radius:5px;
display:none;
font-size:12px;
}

.ok{background:#e8f6f3;color:#16a085}
.mid{background:#fff4e5;color:#d68910}
.bad{background:#fdecea;color:#c0392b}