:root{--bg: #0f1419;--card: #1a2332;--border: #2d3a4d;--text: #e6edf3;--muted: #8b9cb3;--accent: #3b82f6;--success: #22c55e;--warn: #eab308;--danger: #ef4444;font-family:Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--accent)}button{cursor:pointer;font:inherit}input,textarea{font:inherit}.app-shell{max-width:1100px;margin:0 auto;padding:1.25rem}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1rem 1.25rem;margin-bottom:1rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.55rem 1rem;border-radius:8px;border:1px solid var(--border);background:#243044;color:var(--text)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:#2563eb;color:#fff}.btn-ghost{background:transparent}.table-wrap{overflow-x:auto}table.data{width:100%;border-collapse:collapse;font-size:.875rem}table.data th,table.data td{border:1px solid var(--border);padding:.4rem .5rem;text-align:center;vertical-align:middle}table.data th{background:#141c28}.muted{color:var(--muted);font-size:.875rem}.badge{display:inline-block;padding:.15rem .45rem;border-radius:4px;font-size:.75rem;font-weight:600}.badge-signed{background:#22c55e33;color:var(--success)}.badge-pending{background:#eab30833;color:var(--warn)}