:root{
  --bg:#061018; --card:#0e1620; --muted:#9aa4b2; --text:#e6eef6;
  --accent:#ffb86b; --accent-2:#7afcff; --focus:#7afcff;
  --max-width:1100px; --radius:12px; --gap:1rem; --tap:48px;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  font-size:16px;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:linear-gradient(180deg,#05131b,#071621);color:var(--text);-webkit-font-smoothing:antialiased}
.container{max-width:var(--max-width);margin:0 auto;padding:1.25rem}
.header{position:sticky;top:0;z-index:100;background:rgba(6,18,24,0.25);backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,0.02)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.6rem 0}
.brand{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:inherit}
.brand img{width:48px;height:48px;border-radius:10px;object-fit:cover;background:rgba(255,255,255,0.02)}
.brand h1{font-size:1rem;margin:0;line-height:1}
nav.main{display:flex;gap:1rem;align-items:center}
nav.main a{color:var(--muted);text-decoration:none;font-weight:700;padding:.35rem .5rem;border-radius:8px}
nav.main a:focus, nav.main a:hover{outline:none;color:var(--text);background:rgba(255,255,255,0.02)}
.header-actions{display:flex;align-items:center;gap:.6rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.55rem .85rem;border-radius:10px;border:1px solid transparent;font-weight:700;cursor:pointer;min-height:var(--tap)}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,0.03);color:var(--accent)}
.btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#071219;border:none}
.btn:focus{box-shadow:0 0 0 3px rgba(122,252,255,0.08);outline:3px solid rgba(122,252,255,0.06)}

.hero{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center;padding:2.25rem 0}
@media(max-width:900px){nav.main{display:none}.hero{grid-template-columns:1fr;padding:1.25rem 0}}
.hero-card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:1.25rem;border-radius:16px;border:1px solid rgba(255,255,255,0.03)}

.lead{color:var(--muted);font-size:1.02rem}
.kpi{background:rgba(255,255,255,0.02);padding:.8rem;border-radius:10px;text-align:center;min-width:120px}

.section{padding:2rem 0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media(max-width:900px){.grid{grid-template-columns:1fr}}

.card{background:rgba(255,255,255,0.02);padding:1rem;border-radius:12px;border:1px solid rgba(255,255,255,0.02)}

.chart-embed iframe{width:100%;height:420px;border:0;border-radius:10px}
@media(max-width:900px){.chart-embed iframe{height:220px}}

.code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,"Roboto Mono",monospace;background:rgba(0,0,0,0.12);padding:.25rem .5rem;border-radius:6px;color:#cfeffc;display:inline-block}

.footer{padding:2rem 0;text-align:center;color:var(--muted);border-top:1px solid rgba(255,255,255,0.02)}

.small{font-size:.95rem;color:var(--muted)}

/* Mobile nav drawer */
.hamburger{display:none;background:transparent;border:0;color:var(--muted);font-size:1.1rem;padding:.4rem;border-radius:8px}
.hamburger:focus{outline:none;box-shadow:0 0 0 3px rgba(122,252,255,0.06)}

@media(max-width:900px){
  .hamburger{display:inline-flex}
  .drawer{position:fixed;inset:0;background:rgba(2,6,10,0.6);display:flex;flex-direction:column;align-items:center;padding-top:4rem;transform:translateY(-6%);transition:transform .18s ease,opacity .15s ease;opacity:0;pointer-events:none}
  .drawer.open{opacity:1;pointer-events:auto;transform:translateY(0)}
  .drawer a{display:block;padding:1rem 2rem;font-size:1.1rem;color:var(--text);text-decoration:none}
}

/* focusable outline for accessibility */
:focus{outline:none}
.focus-ring{box-shadow:0 0 0 3px rgba(122,252,255,0.08);border-radius:8px}

/* modal */
.modal-backdrop{display:none;position:fixed;inset:0;align-items:center;justify-content:center;background:rgba(0,0,0,0.6);z-index:60;padding:1rem}
.modal-backdrop[aria-hidden="false"]{display:flex}
.modal{width:92%;max-width:980px;background:var(--card);padding:1rem;border-radius:14px;border:1px solid rgba(255,255,255,0.03)}

/* status / aria-live */
.status{min-height:1.2rem;margin-top:.5rem;color:var(--muted)}

/* utility for small screens */
.full-width{width:100%;display:block}