/* ===== ISA: コース・マトリクス ===== */
.isa-cm{ --isa-accent:#E37F67; padding: 12px 0 60px; }
.isa-cm-empty{ padding:16px; background:#fffbe6; border:1px dashed #f0c36d; border-radius:12px; color:#7a5a00; }

.isa-cm-section{
    background: #EDF2F6;
    margin: 9px 90px 0px 90px;
}
.isa-cm-head{
    display:flex;
    align-items:center;
    gap:14px;
    padding: 20px;
}
.isa-cm-bar{
    width: 10px;
    height: 52px;
    background: var(--isa-accent);
    display: inline-block;
}
.isa-cm-title{ margin:0; font-size:clamp(14px, 2.2vw, 22px); font-weight:800; color:var(--isa-accent); letter-spacing:.03em; }

.isa-cm-grid{
    list-style:none; margin:0; padding:0;
    display:grid; grid-template-columns:repeat(3, minmax(0,1fr));
    gap:18px 32px;
    background: #EDF2F6;
    padding: 0 30px 20px 30px;
}
@media (max-width: 1024px){
    .isa-cm-grid{ 
        grid-template-columns:repeat(1, minmax(0,1fr)); 
        margin-bottom: 10px;
    }
}

.isa-cm-card{ }
.isa-cm-link{
    display:flex; align-items:center; gap:12px;
    background:#fff;
    padding:16px 18px; text-decoration:none;
    box-shadow:0 2px 10px rgba(0,0,0,.05);
    transition: transform .12s ease, box-shadow .12s ease;
}
.isa-cm-link:hover{ transform: translateY(-1px); box-shadow:0 6px 20px rgba(0,0,0,.08); }
.isa-cm-label{ color:#0f172a; font-weight:700; font-size:clamp(11px,1.6vw,16px); letter-spacing:.02em; }

.isa-cm-arrow{ width:26px; height:26px; flex:0 0 26px; }



@media (max-width: 1024px) {
    .isa-cm-section {
        background: #EDF2F6;
        margin: 0px;
    }
    .isa-cm {
        padding: 0;
    }
    .isa-cm-title {
        margin: 0;
        font-size: clamp(23px, 2.2vw, 42px);
        font-weight: 800;
        color: var(--isa-accent);
        letter-spacing: .03em;
    }
    .isa-cm-label {
        color: #0f172a;
        font-weight: 700;
        font-size: clamp(17px, 1.6vw, 31px);
        letter-spacing: .02em;
    }
}