.account-nav__divider { height:1px; background:var(--color-border); margin:.45rem .5rem; }
.account-nav__link--business { color:var(--color-primary); background:var(--color-primary-light); }
.participation-model {
  display:flex; align-items:center; gap:.45rem; flex-wrap:wrap;
  padding:1rem; margin-bottom:var(--space-md);
  border:1px solid var(--color-border); border-radius:var(--radius-md);
  background:linear-gradient(135deg,var(--color-surface-alt),var(--color-primary-light));
}
.participation-model__node {
  min-width:8rem; padding:.65rem .75rem; border:1px solid var(--color-border);
  background:var(--color-surface); border-radius:var(--radius-sm); text-align:center;
}
.participation-model__node span { display:block; font:600 .58rem var(--font-mono); letter-spacing:.08em; color:var(--color-secondary); }
.participation-model__node strong { display:block; margin-top:.2rem; font-size:.76rem; }
.participation-model__node--user { border-color:var(--color-secondary); }
.participation-model__line { width:1.3rem; height:1px; background:var(--color-border-strong); }
.participation-model__roles { width:100%; display:flex; gap:.45rem; flex-wrap:wrap; margin-top:.55rem; padding-top:.65rem; border-top:1px dashed var(--color-border); }
.participation-model__roles span { font:600 .63rem var(--font-mono); color:var(--color-text-soft); background:var(--color-surface); border:1px solid var(--color-border); border-radius:999px; padding:.35rem .55rem; }
.participation-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:.8rem; }
.participation-card { display:flex; flex-direction:column; align-items:flex-start; padding:1rem; border:1px solid var(--color-border); border-radius:var(--radius-md); background:var(--color-surface); }
.participation-card--supplier { border-color:color-mix(in srgb,var(--color-secondary) 35%,var(--color-border)); background:linear-gradient(180deg,var(--color-primary-light),var(--color-surface)); }
.participation-card__icon { width:2.2rem; height:2.2rem; display:grid; place-items:center; border-radius:var(--radius-sm); background:var(--color-primary-light); color:var(--color-primary); font-weight:700; }
.participation-card__eyebrow { margin-top:.8rem; font:600 .62rem var(--font-mono); letter-spacing:.07em; text-transform:uppercase; color:var(--color-secondary-dark); }
.participation-card h3 { margin-top:.25rem; font-size:1rem; }
.participation-card p { margin-top:.45rem; color:var(--color-text-soft); font-size:.76rem; line-height:1.55; }
.participation-card__status { width:100%; display:flex; justify-content:space-between; gap:.5rem; margin:1rem 0 .8rem; padding:.55rem .65rem; border-radius:var(--radius-sm); background:var(--color-surface-alt); font-size:.68rem; color:var(--color-text-faint); }
.participation-card__status b { color:var(--color-text); font-weight:600; }
.participation-card .btn { margin-top:auto; }
.participation-note { display:flex; gap:.6rem; margin-top:var(--space-md); padding:.75rem .85rem; border:1px solid var(--color-border); border-radius:var(--radius-sm); color:var(--color-text-soft); font-size:.72rem; background:var(--color-surface-sunken); }
.participation-note svg { width:1rem; height:1rem; flex:none; color:var(--color-secondary); }
.participation-note strong { color:var(--color-text); }
@media (max-width: 960px) { .participation-grid { grid-template-columns:1fr; } }
@media (max-width: 560px) { .participation-model__line { display:none; } .participation-model__node { flex:1 1 7rem; } }