:root{--bg:#fafafa;--panel:#ffffff;--border:#e5e7eb;--border-strong:#d1d5db;--text:#0f172a;--muted:#64748b;--primary:#2563eb;--primary-hover:#1d4ed8;--success:#059669;--danger:#dc2626;--warning:#d97706}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:24px;font-weight:700;margin:0 0 16px}h2{font-size:18px;margin:0 0 12px}h2,h3{font-weight:600}h3{font-size:14px;margin:0 0 8px}p{margin:0 0 12px}code{background:#f1f5f9;padding:2px 6px;border-radius:4px}code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}pre{background:#0f172a;color:#e2e8f0;padding:12px 16px;border-radius:8px;overflow-x:auto}.shell{min-height:100vh;display:flex;flex-direction:column}.topbar{background:#fff;border-bottom:1px solid var(--border);padding:12px 24px;display:flex;align-items:center;justify-content:space-between}.topbar-brand{font-weight:700;font-size:16px}.topbar-user{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:12px}.container{max-width:960px;margin:0 auto;padding:24px;width:100%;flex:1 1}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:16px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.field{display:flex;flex-direction:column;margin-bottom:14px}.field label{font-weight:600;margin-bottom:4px;text-transform:uppercase;letter-spacing:.04em}.field .hint,.field label{font-size:12px;color:var(--muted)}.field .hint{margin-top:4px}.input,.select,.textarea{width:100%;padding:9px 12px;border:1px solid var(--border-strong);border-radius:6px;font:inherit;color:var(--text);background:#fff;transition:border-color .1s ease,box-shadow .1s ease}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}.textarea{resize:vertical;min-height:88px;font-family:inherit}.input[type=color]{padding:2px;height:36px;cursor:pointer}.row{display:flex;gap:12px}.row>.field{flex:1 1}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:6px;font:inherit;font-weight:600;font-size:13px;cursor:pointer;border:1px solid transparent;transition:background .1s,border-color .1s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-primary:disabled{background:#94a3b8;cursor:not-allowed}.btn-secondary{background:#fff;color:var(--text);border-color:var(--border-strong)}.btn-secondary:hover{background:#f8fafc}.btn-danger{background:#fff;color:var(--danger);border-color:#fecaca}.btn-danger:hover{background:#fef2f2}.btn-link{background:transparent;color:var(--primary);border:0;padding:0;cursor:pointer;font:inherit}.btn-link:hover{text-decoration:underline}.table{width:100%;border-collapse:collapse}.table td,.table th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);font-size:13px;vertical-align:top}.table th{font-weight:600;color:var(--muted);text-transform:uppercase;font-size:11px;letter-spacing:.04em}.table tr:hover td{background:#f8fafc}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600}.badge-sent{background:#ecfdf5;color:#065f46}.badge-pending{background:#fef9c3;color:#854d0e}.badge-failed{background:#fef2f2;color:#991b1b}.badge-active{background:#ecfdf5;color:#065f46}.badge-inactive{background:#f1f5f9;color:#64748b}.muted{color:var(--muted)}.flex{display:flex}.gap-8{gap:8px}.gap-12{gap:12px}.between{justify-content:space-between;align-items:center}.tag-list{display:flex;flex-wrap:wrap;gap:6px}.tag{background:#f1f5f9;color:var(--text);padding:2px 8px;font-size:12px}.alert,.tag{border-radius:6px}.alert{padding:10px 12px;margin-bottom:12px;font-size:13px}.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.alert-success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.alert-info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:380px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:28px}.auth-card h1{font-size:20px;margin-bottom:4px}.auth-card p{color:var(--muted);margin-bottom:20px}.empty{padding:40px 20px;text-align:center;color:var(--muted)}