:root{--teal:#00897b;--teal-dark:#00695c;--ink:#041314;--muted:#6b7280;--border:#e5e7eb;--surface:#ffffff;--bg:#f4f7f7;--success:#15803d;--error:#b91c1c}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--ink);background:var(--bg)}.app{min-height:100vh;display:flex;align-items:flex-start;justify-content:center;padding:32px 16px}.card{width:100%;max-width:560px;background:var(--surface);border-radius:16px;padding:32px;box-shadow:0 1px 3px rgba(0,0,0,.04)}.brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.brand-dot{width:32px;height:32px;border-radius:8px;background:var(--teal)}.brand-title{font-weight:700;font-size:18px}h1{font-size:22px;margin:0 0 8px}.subtitle{color:var(--muted);font-size:14px;margin:0 0 24px}.btn{display:inline-block;background:var(--teal);color:#fff;border:none;padding:12px 20px;border-radius:10px;font-weight:600;font-size:14px;cursor:pointer}.btn:hover{background:var(--teal-dark)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:transparent;color:var(--teal);border:1px solid var(--teal)}.btn-secondary:hover{background:rgba(0,137,123,.05)}.link-button{background:none;border:none;color:var(--teal);cursor:pointer;padding:0;font:inherit}.member-list{display:flex;flex-direction:column;gap:8px;margin:16px 0 24px}.member{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--border);border-radius:12px;background:var(--surface);cursor:pointer;text-align:left;width:100%;font-size:14px;color:var(--ink)}.member.selected,.member:hover{border-color:var(--teal)}.member.selected{background:rgba(0,137,123,.05)}.avatar{width:36px;height:36px;border-radius:50%;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;background-size:cover;background-position:50%}.avatar,.member-name{font-weight:600}.member-rel{font-size:12px;color:var(--muted)}.dropzone{border:2px dashed var(--border);border-radius:16px;padding:32px;text-align:center;color:var(--muted);transition:all .12s ease;cursor:pointer;display:block}.dropzone.active{border-color:var(--teal);background:rgba(0,137,123,.05);color:var(--teal)}.dropzone input{display:none}.dropzone-icon{font-size:32px;margin-bottom:12px}.file-list{margin-top:16px;gap:8px}.file-list,.file-row{display:flex;flex-direction:column}.file-row{gap:6px;padding:12px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}.file-row-head{display:flex;justify-content:space-between;font-size:14px;gap:12px}.file-name{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-status{color:var(--muted);font-size:12px;flex-shrink:0}.file-status.success{color:var(--success)}.file-status.error{color:var(--error)}.progress{height:4px;background:var(--border);border-radius:2px;overflow:hidden}.progress-fill{height:100%;background:var(--teal);transition:width .12s ease}.progress-fill.success{background:var(--success)}.progress-fill.error{background:var(--error)}.error-banner{background:rgba(185,28,28,.08);color:var(--error);margin-bottom:16px}.done-banner,.error-banner{padding:12px 16px;border-radius:10px;font-size:14px}.done-banner{background:rgba(21,128,61,.08);color:var(--success);margin-top:16px}.muted{color:var(--muted);font-size:13px;margin-top:12px}.loading{display:flex;flex-direction:column;align-items:center;gap:16px}.spinner{display:inline-block;width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--teal);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}