.m-hiw {
    padding: 80px 32px;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}
.m-hiw__label {
    font-size: 11px;
    font-family: ui-monospace, monospace;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
}
.m-hiw__title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin: 0 0 10px;
    letter-spacing: -0.02em;
}
.m-hiw__sub {
    color: var(--text-muted);
    font-size: 16px;
    margin: 0 0 48px;
}
.m-hiw__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: left;
}
.m-hiw__card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.m-hiw__card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-glow);
}
.m-hiw__step {
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: var(--accent-contrast);
    border-radius: var(--radius-full);
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 14px;
    font-family: ui-monospace, monospace;
    margin-bottom: 20px;
}
.m-hiw__card-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 10px;
}
.m-hiw__card-desc {
    color: var(--text-muted);
    font-size: 14px;
    margin: 0 0 20px;
    line-height: 1.65;
}
.m-hiw__visual {
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    padding: 16px;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.m-hiw__code {
    font-family: ui-monospace, monospace;
    font-size: 11px;
    color: var(--accent);
    word-break: break-all;
    text-align: center;
    line-height: 1.8;
}
.m-hiw__chat {
    font-family: ui-monospace, monospace;
    font-size: 12px;
    text-align: left;
    line-height: 2;
}
@media (max-width: 768px) {
    .m-hiw__grid { grid-template-columns: 1fr; }
}