:root{--bg:#f4f6f8;--card:#ffffff;--sidebar:#ffffff;--primary:#1e88e5;--teal:#26c6da;--purple:#7460ee;--warn:#ffb22b;--danger:#fc4b6c;--ok:#39cb7f;--text:#2a3547;--muted:#7c8fac;--line:#e8eef4;--doji:#fff8e1}*{box-sizing:border-box}body,html{margin:0;min-height:100%;font-family:Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(420px,100%);background:var(--card);border-radius:16px;box-shadow:0 12px 32px rgba(30,136,229,.12);padding:32px}.login-card h1{margin:8px 0 4px;font-size:1.5rem}.login-card p{color:var(--muted);margin:0 0 20px}.login-card label{display:block;margin:12px 0;font-size:.9rem}.login-card input{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--line);border-radius:10px}.login-card 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var(--line);border-radius:8px}.backtest-best-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.backtest-best-hour{font-size:1.6rem;font-weight:700;margin-bottom:8px}.backtest-best .rec-meta{display:flex;flex-wrap:wrap;gap:10px 16px;font-size:.85rem;color:var(--muted)}@media (max-width:980px){.app,.backtest-best-grid{grid-template-columns:1fr}.sidebar{display:block;position:-webkit-sticky;position:sticky;top:0;z-index:4;border-right:0;border-bottom:1px solid var(--line);padding:10px 12px}.brand{padding:4px 8px 10px}.nav{display:flex;flex-wrap:wrap;gap:4px}.nav button{width:auto;margin-bottom:0}.grid-2,.kpis,form.grid{grid-template-columns:1fr}}