:root{
  --bg:#0f1115; --panel:#171a21; --panel-2:#1e222b; --border:#2a2f3a;
  --text:#e8eaee; --muted:#8b93a3; --brand:#4f7cff; --brand-2:#3b5fe0;
  --ok:#2fbf71; --warn:#e0a83b; --err:#e0503b; --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;}
a{color:var(--brand);text-decoration:none}
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;}
.auth-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:36px;width:100%;max-width:380px;}
.auth-card h1{font-size:22px;margin:0 0 4px}
.auth-card p.sub{color:var(--muted);margin:0 0 24px;font-size:14px}
label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
input,select,textarea{width:100%;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:10px 12px;font-size:14px}
textarea{min-height:160px;font-family:monospace}
button,.btn{cursor:pointer;background:var(--brand);color:#fff;border:none;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600}
button:hover,.btn:hover{background:var(--brand-2)}
.btn-secondary{background:var(--panel-2);border:1px solid var(--border);color:var(--text)}
.btn-danger{background:var(--err)}
.alert{padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:16px}
.alert-ok{background:rgba(47,191,113,.12);color:var(--ok);border:1px solid rgba(47,191,113,.3)}
.alert-err{background:rgba(224,80,59,.12);color:var(--err);border:1px solid rgba(224,80,59,.3)}
.app{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:20px 0;flex-shrink:0}
.sidebar .brand{font-weight:700;font-size:18px;padding:0 20px 20px;border-bottom:1px solid var(--border);margin-bottom:12px}
.sidebar nav a{display:block;padding:10px 20px;color:var(--muted);font-size:14px}
.sidebar nav a:hover,.sidebar nav a.active{background:var(--panel-2);color:var(--text)}
.main{flex:1;padding:28px 32px;max-width:1100px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}
.card h2{margin-top:0;font-size:16px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}
.badge{display:inline-block;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:600}
.badge-draft{background:#2a2f3a;color:var(--muted)}
.badge-queued,.badge-sending{background:rgba(224,168,59,.15);color:var(--warn)}
.badge-completed{background:rgba(47,191,113,.15);color:var(--ok)}
.badge-failed{background:rgba(224,80,59,.15);color:var(--err)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.progress{background:var(--panel-2);border-radius:99px;height:8px;overflow:hidden}
.progress > div{background:var(--brand);height:100%}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.muted{color:var(--muted);font-size:13px}