/* The IMB Network — Phase A4 Collaboration Workspace */
.phase-a4-collaboration-shell{margin-top:1.25rem}
.a4-shell-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1rem}
.a4-shell-actions,.a4-card-actions,.a4-modal-actions{display:flex;gap:.65rem;flex-wrap:wrap;align-items:center}
.a4-tabs{display:flex;gap:.5rem;overflow-x:auto;padding-bottom:.35rem;margin-bottom:.75rem}
.a4-status{min-height:1.25rem;margin:.25rem 0 .75rem}
.a4-request-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1rem}
.a4-request-card{border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:1rem;background:rgba(10,10,16,.72);display:flex;flex-direction:column;gap:.75rem;min-width:0}
.a4-request-head{display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem}
.a4-request-head h3{margin:.15rem 0 0;font-size:1.08rem;line-height:1.25}
.a4-eyebrow{margin:0;color:var(--muted,#a9a9bb);font-size:.76rem;text-transform:uppercase;letter-spacing:.09em}
.a4-status-badge{display:inline-flex;align-items:center;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:.32rem .62rem;font-size:.75rem;white-space:nowrap}
.a4-status-badge[data-status="active"],.a4-status-badge[data-status="completed"],.a4-status-badge[data-status="accepted"]{border-color:rgba(100,220,160,.45)}
.a4-status-badge[data-status="declined"],.a4-status-badge[data-status="withdrawn"],.a4-status-badge[data-status="ended"],.a4-status-badge[data-status="expired"]{opacity:.72}
.a4-term-row,.a4-date-row{display:flex;gap:.45rem;flex-wrap:wrap}
.a4-term-row span{border-radius:999px;background:rgba(255,255,255,.07);padding:.28rem .55rem;font-size:.76rem}
.a4-date-row span{color:var(--muted,#aaa);font-size:.78rem}
.a4-note{margin:0;white-space:pre-wrap;line-height:1.5}
.a4-confirmation-note{margin:0;padding:.65rem;border-left:3px solid currentColor;background:rgba(255,255,255,.05);font-size:.86rem}
.a4-danger-link{opacity:.8}
.a4-empty{border:1px dashed rgba(255,255,255,.15);border-radius:18px;padding:1.35rem;text-align:center}
.a4-empty h3{margin-top:0}
.a4-modal-open{overflow:hidden}
.a4-modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:9997}
.a4-modal{position:fixed;z-index:9998;left:50%;top:50%;transform:translate(-50%,-50%);width:min(760px,calc(100vw - 28px));max-height:calc(100vh - 36px);overflow:auto;border:1px solid rgba(255,255,255,.15);border-radius:20px;background:#111118;box-shadow:0 24px 80px rgba(0,0,0,.45)}
.a4-modal-head{position:sticky;top:0;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.15rem;border-bottom:1px solid rgba(255,255,255,.1);background:#111118}
.a4-modal-head h2{margin:0;font-size:1.2rem}
.a4-modal-body{padding:1.15rem}
.a4-form{display:flex;flex-direction:column;gap:1rem}
.a4-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem}
.a4-form label{display:flex;flex-direction:column;gap:.4rem;font-weight:650;font-size:.86rem}
.a4-form select,.a4-form input,.a4-form textarea{width:100%;border:1px solid rgba(255,255,255,.16);border-radius:12px;background:rgba(255,255,255,.06);color:inherit;padding:.75rem;font:inherit}
.a4-form textarea{resize:vertical}
.a4-form-status{min-height:1.2rem;margin:0}
.a4-modal-actions{justify-content:flex-end;margin-top:.5rem}
.a4-detail-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}
.a4-detail-list>div,.a4-detail-note{border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:.8rem}
.a4-detail-list span,.a4-detail-note span{display:block;color:var(--muted,#aaa);font-size:.76rem;margin-bottom:.25rem}
.a4-detail-note{margin-top:.75rem}.a4-detail-note p{margin:.35rem 0 0;white-space:pre-wrap}
@media (max-width:700px){.a4-shell-header{flex-direction:column}.a4-form-grid,.a4-detail-list{grid-template-columns:1fr}.a4-modal{top:auto;bottom:0;transform:translateX(-50%);max-height:88vh;border-radius:20px 20px 0 0}.a4-request-grid{grid-template-columns:1fr}}