:root{--navy:#071b34;--navy2:#0b2748;--blue:#1769ff;--blue2:#0f5be7;--bg:#f4f7fb;--card:#fff;--text:#132238;--muted:#6b7b93;--border:#dfe7f1;--success:#16a34a;--danger:#ef4444;--warning:#f59e0b;--shadow:0 10px 25px rgba(15,35,65,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}.sidebar{position:fixed;left:0;top:0;bottom:0;width:238px;background:linear-gradient(180deg,var(--navy),#031020);color:#fff;padding:18px 14px;z-index:10}.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.brand-icon{width:38px;height:38px;background:#1264f5;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:800}.brand strong{display:block;font-size:17px}.brand span{display:block;font-size:12px;color:#a9bdd8}.sidebar nav a{display:flex;align-items:center;gap:11px;color:#c6d5e8;text-decoration:none;padding:12px 13px;border-radius:10px;margin-bottom:4px;font-weight:600}.sidebar nav a.active,.sidebar nav a:hover{background:#1769ff;color:#fff}.nav-dot{width:14px;height:14px;border:1px solid currentColor;border-radius:4px;display:inline-block}.main{margin-left:238px;min-height:100vh}.topbar{height:64px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:5}.hamburger{border:0;background:transparent;font-size:21px;color:#37506e}.page-kicker{margin-left:12px;color:var(--muted);font-size:12px}.userbar{display:flex;align-items:center;gap:14px}.userbar a{color:var(--blue);text-decoration:none;font-weight:700}.content{padding:26px}.footer{padding:18px 26px;color:var(--muted);font-size:12px;text-align:center}.page-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.page-title 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.active{background:var(--blue);color:#fff}.login-body{min-height:100vh;background:linear-gradient(rgba(4,17,35,.77),rgba(4,17,35,.77)),radial-gradient(circle at 20% 30%,#0f63ff 0,#071b34 35%,#020814 100%);display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:410px;background:#fff;border-radius:18px;box-shadow:0 28px 70px rgba(0,0,0,.25);padding:34px}.login-card .logo{width:64px;height:64px;background:#1769ff;border-radius:18px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;font-weight:900;margin:0 auto 12px}.login-card h1{text-align:center;margin:0;font-size:24px}.login-card p{text-align:center;color:var(--muted);margin:8px 0 26px}.install-card h1{text-align:left}.install-card p{text-align:left}.split{display:grid;grid-template-columns:2fr 1fr;gap:18px}.message-preview{white-space:pre-wrap;max-width:520px}.chart-placeholder{height:260px;background:linear-gradient(180deg,#f8fbff,#fff);border:1px dashed #cbd5e1;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#6b7b93}.signal{height:16px;width:38px;display:inline-block;background:linear-gradient(90deg,#22c55e 25%,transparent 25% 35%,#22c55e 35% 55%,transparent 55% 65%,#22c55e 65% 100%);border-radius:3px}@media(max-width:1100px){.grid.cols-4{grid-template-columns:repeat(2,1fr)}.split,.grid.cols-2,.form-grid{grid-template-columns:1fr}.sidebar{width:210px}.main{margin-left:210px}}@media(max-width:760px){.sidebar{position:relative;width:100%;height:auto}.main{margin-left:0}.topbar{position:relative}.grid.cols-4{grid-template-columns:1fr}.content{padding:16px}.table{font-size:12px}.login-card{width:100%}}