:root{--bg: #f4f5f7;--panel: #ffffff;--border: #e3e5e8;--text: #1f2430;--muted: #6b7280;--brand: #2563eb;--brand-dark: #1d4ed8;--ok: #16a34a;--warn: #d97706;--err: #dc2626;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{color:var(--brand);text-decoration:none}.layout{display:flex;min-height:100vh}.sidebar{width:210px;background:#111827;color:#d1d5db;padding:1rem 0;flex-shrink:0}.sidebar h1{font-size:15px;color:#fff;padding:0 1.25rem;margin:0 0 1rem}.sidebar nav a{display:block;padding:.55rem 1.25rem;color:#9ca3af}.sidebar nav a.active,.sidebar nav a:hover{color:#fff;background:#1f2937}.sidebar .foot{padding:1rem 1.25rem;font-size:12px;color:#6b7280}.main{flex:1;padding:1.5rem 2rem;max-width:1200px}h2{margin:0 0 1rem;font-size:20px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1.25rem}.row{display:flex;gap:1rem;flex-wrap:wrap;align-items:end}.grow{flex:1}label{display:block;font-weight:600;margin:.6rem 0 .25rem}input,select,textarea{width:100%;padding:.5rem .6rem;border:1px solid var(--border);border-radius:6px;font:inherit;background:#fff}textarea.code{font-family:ui-monospace,monospace;min-height:260px}button,.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:6px;padding:.5rem 1rem;font:inherit;font-weight:600;cursor:pointer}button:hover,.btn:hover{background:var(--brand-dark)}button.secondary{background:#fff;color:var(--text);border:1px solid var(--border)}button.danger{background:var(--err)}button:disabled{opacity:.5;cursor:not-allowed}table{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}th,td{text-align:left;padding:.55rem .8rem;border-bottom:1px solid var(--border)}th{background:#f9fafb;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}tr:last-child td{border-bottom:0}.badge{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:12px;font-weight:600}.badge.draft{background:#e5e7eb;color:#374151}.badge.generating,.badge.sending,.badge.queued,.badge.running,.badge.claimed{background:#fef3c7;color:#92400e}.badge.generated{background:#dbeafe;color:#1e40af}.badge.sent,.badge.done{background:#dcfce7;color:#166534}.badge.failed{background:#fee2e2;color:#991b1b}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-bottom:1.25rem}.stat{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}.stat .n{font-size:24px;font-weight:700}.stat .l{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em}.alert{border-radius:var(--radius);padding:.75rem 1rem;margin-bottom:1rem}.alert.err{background:#fee2e2;color:#991b1b}.alert.warn{background:#fef3c7;color:#92400e}.alert.ok{background:#dcfce7;color:#166534}.login-wrap{display:flex;justify-content:center;padding-top:12vh}.login-card{width:340px}.muted{color:var(--muted)}.mt{margin-top:1rem}