:root{--bg:#f5f6f8;--card:#fff;--border:#e1e4e8;--text:#1f2328;--muted:#6a737d;--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#dc2626;--success-bg:#ecfdf5;--success-text:#047857;--error-bg:#fef2f2;--error-text:#b91c1c;--info-bg:#eff6ff;--info-text:#1e40af}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}h1{margin:0 0 1rem;font-size:1.5rem}.auth-page{justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.auth-card{background:var(--card);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:.4rem;width:100%;max-width:380px;padding:2rem;display:flex}.auth-card .subtitle{color:var(--muted);margin:0 0 1rem}.auth-card label,.card-form label{margin-top:.6rem;font-size:.85rem;font-weight:600}input,select,textarea{border:1px solid var(--border);color:var(--text);background:#fff;border-radius:8px;padding:.5rem .6rem;font-family:inherit;font-size:.95rem}textarea{resize:vertical;font-family:ui-monospace,monospace;font-size:.85rem}button{cursor:pointer;background:var(--primary);color:#fff;border:none;border-radius:8px;margin-top:1rem;padding:.55rem 1.1rem;font-family:inherit;font-size:.95rem;font-weight:600}button:hover{background:var(--primary-dark)}button:disabled{opacity:.6;cursor:not-allowed}button.secondary{color:var(--primary);border:1px solid var(--primary);background:#fff}.link-button{color:var(--primary);background:0 0;margin:0;padding:0;font-weight:500}.link-button.danger{color:var(--danger)}.button-link{background:var(--primary);color:#fff;border-radius:8px;padding:.5rem 1rem;font-weight:600;text-decoration:none;display:inline-block}.switch-link{color:var(--muted);margin-top:1rem;font-size:.9rem}.alert{border-radius:8px;margin:.5rem 0;padding:.6rem .8rem;font-size:.9rem}.alert.error{background:var(--error-bg);color:var(--error-text)}.alert.success{background:var(--success-bg);color:var(--success-text)}.alert.info{background:var(--info-bg);color:var(--info-text)}.dashboard{min-height:100vh;display:flex}.sidebar{color:#fff;background:#111827;flex-direction:column;width:220px;padding:1.5rem 1rem;display:flex}.sidebar h2{margin:0 0 1.5rem;font-size:1.1rem}.sidebar nav{flex-direction:column;flex:1;gap:.3rem;display:flex}.sidebar nav a{color:#cbd5e1;border-radius:8px;padding:.5rem .7rem;font-size:.9rem;text-decoration:none}.sidebar nav a.active,.sidebar nav a:hover{color:#fff;background:#ffffff1a}.sidebar-footer{border-top:1px solid #ffffff26;padding-top:1rem;font-size:.85rem}.sidebar-footer .user-name{color:#cbd5e1;margin-bottom:.4rem}.sidebar-footer .link-button{color:#93c5fd}.content{flex:1;max-width:900px;padding:2rem}.page-header{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}.page-subtitle{color:var(--muted);margin-top:-.5rem;margin-bottom:1.2rem}.card-form{background:var(--card);border:1px solid var(--border);border-radius:12px;flex-direction:column;margin-bottom:1.5rem;padding:1.5rem;display:flex}.card-form.inline-form{gap:.2rem}.form-row{gap:1rem;display:flex}.form-row>div{flex-direction:column;flex:1;display:flex}.button-row{align-items:center;gap:.75rem;display:flex}.data-table{border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:12px;width:100%;overflow:hidden}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--border);padding:.7rem 1rem;font-size:.9rem}.data-table th{color:var(--muted);background:#fafbfc;font-weight:600}.data-table tr:last-child td{border-bottom:none}.empty-state{color:var(--muted);padding:1rem 0}.badge{color:#374151;text-transform:capitalize;background:#e5e7eb;border-radius:999px;padding:.15rem .6rem;font-size:.78rem;font-weight:600;display:inline-block}.badge.sent{background:var(--success-bg);color:var(--success-text)}.badge.sending,.badge.queued{color:#92400e;background:#fef3c7}.badge.failed{background:var(--error-bg);color:var(--error-text)}.badge.subscribed{background:var(--success-bg);color:var(--success-text)}.badge.unsubscribed,.badge.bounced{color:#6b7280;background:#f3f4f6}.full-page-loading{min-height:100vh;color:var(--muted);justify-content:center;align-items:center;display:flex}