.cartshare-block{ margin-top:1rem; }
.cs-overlay{ position:fixed; inset:0; background:rgba(0,0,0,.45); display:flex; align-items:center; justify-content:center; z-index:9999; }
.cs-modal{ background:#fff; border-radius:10px; box-shadow:0 10px 35px rgba(0,0,0,.25); width:min(640px,92vw); max-width:640px; padding:16px; position:relative; font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif; }
.cs-modal-header{ font-size:18px; font-weight:600; margin-right:28px; }
.cs-close{ position:absolute; right:10px; top:8px; background:transparent; border:0; font-size:24px; line-height:1; cursor:pointer; opacity:.6; }
.cs-close:hover{ opacity:1; }
.cs-modal-body{ margin-top:8px; }
.cs-alert{ background:#eef6ff; color:#0b5ed7; border:1px solid #cfe2ff; border-radius:8px; padding:10px 12px; font-size:14px; margin-bottom:12px; }
.cs-input-group{ display:flex; gap:8px; }
.cs-input{ flex:1; padding:10px 12px; border:1px solid #d1d5db; border-radius:8px; font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace; font-size:14px; }
.cs-btn{ padding:10px 14px; border-radius:8px; border:1px solid #d1d5db; background:#f8f9fa; cursor:pointer; font-weight:600; }
.cs-btn:hover{ background:#eef2f7; }
.cs-muted{ margin-top:8px; color:#6b7280; font-size:12px; }