:root{--nav:#111827;--accent:#6d5dfc;--bg:#f4f6fb;--text:#172033}*{box-sizing:border-box}body{margin:0;font:14px Inter,Arial,sans-serif;color:var(--text);background:var(--bg)}#side{position:fixed;inset:0 auto 0 0;width:245px;background:var(--nav);color:#fff;overflow:auto}.brand{font-size:27px;font-weight:800;padding:22px}.brand span{color:#8b7cff}nav small{display:block;color:#7f8ba5;padding:18px 22px 7px;font-size:10px;letter-spacing:1.2px}nav a{display:flex;gap:12px;align-items:center;color:#cbd2df;text-decoration:none;padding:11px 22px;border-left:3px solid transparent;cursor:pointer}nav a:hover,nav a.active{background:#202a3b;color:#fff;border-left-color:#8b7cff}.workspace{margin-left:245px;height:100vh;display:flex;flex-direction:column}.workspace header{height:58px;background:#fff;display:flex;align-items:center;gap:20px;padding:0 20px;border-bottom:1px solid #e5e7eb}.workspace header strong{flex:1}.workspace header button,#toggle{border:0;background:transparent;cursor:pointer}#content{width:100%;flex:1;border:0;background:var(--bg)}.page{padding:28px}.page h1{font-size:24px}.panel{background:#fff;padding:22px;border-radius:14px;box-shadow:0 4px 18px #1d2a4410}.grid2{display:grid;grid-template-columns:minmax(280px,420px) 1fr;gap:20px}label{display:block;font-weight:600;margin:12px 0 5px}input,select,textarea{width:100%;border:1px solid #dce1ea;border-radius:8px;padding:10px;background:#fff}button{border:0;border-radius:8px;padding:10px 16px;background:var(--accent);color:#fff;cursor:pointer}.panel article{display:flex;flex-direction:column;padding:12px;border-bottom:1px solid #eee}.stats,.segment-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0}.stats>div,.segment-grid article{background:#fff;border-radius:12px;padding:18px}.stats b{display:block;font-size:24px}.stats span,.segment-grid span,.muted{color:#6b7280}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px;border-bottom:1px solid #eee}.login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#111827,#312e81)}.login-card{width:min(410px,92vw);background:#fff;padding:34px;border-radius:18px;box-shadow:0 25px 60px #0005}.login-card .brand{padding:0 0 8px}.login-card button{width:100%;margin-top:18px}.login-card .secondary{background:#eef0ff;color:#4035b8}.error{color:#c02626;margin-top:12px}.login-card footer{text-align:center;color:#9ca3af;margin-top:25px;font-size:12px}@media(max-width:800px){#side{transform:translateX(-100%);z-index:10;transition:.2s}.workspace{margin-left:0}.menu-open #side{transform:none}.grid2,.stats,.segment-grid{grid-template-columns:1fr}.page{padding:16px}}