:root{--navy:#071426;--navy2:#0d213b;--blue:#2574ee;--green:#19b779;--bg:#f4f7fb;--text:#172033;--muted:#68768a;--line:#dfe6ef;--danger:#d64545}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.sidebar{background:linear-gradient(180deg,var(--navy),#081b31);color:#d7e0ec;padding:24px 18px}.brand{display:flex;gap:12px;align-items:center;font-weight:800;color:#fff;margin-bottom:34px}.brand-badge{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--blue),#56a1ff);display:grid;place-items:center}.nav a{display:block;padding:11px 14px;border-radius:10px;color:#aebdd0;margin:4px 0}.nav a.active,.nav a:hover{background:#183659;color:#fff}.content{padding:32px}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 24px rgba(22,38,61,.05)}.muted{color:var(--muted)}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:750}.ok{background:#e8f8f1;color:#13835a}.warn{background:#fff4dc;color:#a86c00}.bad{background:#fdeaea;color:#b63838}.btn{border:0;border-radius:10px;padding:11px 16px;font-weight:750;cursor:pointer}.btn-primary{background:var(--blue);color:#fff}.btn-secondary{background:#eef3f8;color:#33445a}.auth-page{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr;background:radial-gradient(circle at 15% 20%,rgba(37,116,238,.2),transparent 28%),linear-gradient(135deg,#06101d,#0b1b2d);color:white}.auth-brand{padding:64px 8vw;display:flex;flex-direction:column;justify-content:center}.auth-brand h1{font-size:58px;line-height:1;letter-spacing:-2px;margin:18px 0}.auth-panel{background:rgba(5,12,21,.58);display:flex;align-items:center;justify-content:center;padding:40px}.auth-card{width:min(460px,100%);background:#102039;border:1px solid rgba(255,255,255,.09);border-radius:22px;padding:34px;box-shadow:0 25px 70px rgba(0,0,0,.35)}label{display:block;font-weight:700;margin:14px 0 7px}.input{width:100%;padding:12px 14px;border-radius:10px;border:1px solid #334966;background:#0a1729;color:white}.alert{padding:12px 14px;border-radius:10px;margin:12px 0}.alert-danger{background:#421f28;color:#ffd6dc}.installer{max-width:1050px;margin:32px auto;padding:0 20px}.installer-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.installer .input{background:#fff;color:#172033;border-color:var(--line)}.checks{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.check{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px}.footnote{font-size:12px;color:var(--muted)}@media(max-width:950px){.shell{grid-template-columns:1fr}.sidebar{display:none}.cards{grid-template-columns:1fr 1fr}.auth-page{grid-template-columns:1fr}.auth-brand{display:none}.installer-grid{grid-template-columns:1fr}}@media(max-width:600px){.cards{grid-template-columns:1fr}.content{padding:18px}.checks{grid-template-columns:1fr}}