/* Reset */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
:root{
  --bg:#0b1220;
  --panel:#121a2b;
  --panel-alt:#0f1726;
  --text:#e5ecff;
  --muted:#9db1d1;
  --accent:#0ea5e9;
  --accent-2:#38bdf8;
  --border:#1f2a44;
}

body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}

/* Nav */
.nav{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:rgba(11,18,32,.7);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--border)}
.nav .logo{color:var(--text);text-decoration:none;font-weight:700;letter-spacing:.2px}
.nav .links a{color:var(--muted);text-decoration:none;margin:0 10px;padding:8px 10px;border-radius:8px}
.nav .links a:hover{background:var(--panel);color:var(--text)}
.menu-btn{display:none;background:none;border:1px solid var(--border);color:var(--text);padding:6px 10px;border-radius:8px}

/* Sections */
.section{padding:56px 0;border-bottom:1px solid var(--border);background:linear-gradient(180deg,transparent,rgba(255,255,255,0.02) 40%,transparent)}
.section.alt{background:linear-gradient(180deg,transparent,rgba(255,255,255,0.03) 40%,transparent)}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.grid.two{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:start}
.media img{width:100%;height:auto;border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.copy h1{font-size:clamp(1.6rem,3.2vw,2.6rem);margin-bottom:10px}
h2{font-size:clamp(1.3rem,2.4vw,2rem);margin-bottom:10px}
h3{margin:10px 0 6px;color:var(--accent)}
.lead{color:var(--muted);font-size:1.05rem;margin-bottom:12px}
p{margin:8px 0;color:var(--text)}
.ticks{list-style:none;margin:10px 0 6px;padding:0}
.ticks li{margin:8px 0;padding-left:26px;position:relative;color:var(--text)}
.ticks li::before{content:'✓';position:absolute;left:0;top:0;color:var(--accent)}

/* Sounds Familiar grid */
.sf-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:20px}
.sf-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px;color:var(--text)}
.sf-item span{color:var(--accent);font-weight:700;margin-right:8px}

/* Callout */
.callout{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px}
.callout .block{display:block;text-align:center}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border-radius:10px;text-decoration:none;font-weight:700;transition:.2s ease;cursor:pointer}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#00111a;box-shadow:0 10px 30px rgba(14,165,233,.35)}
.btn.primary:hover{transform:translateY(-1px);box-shadow:0 14px 36px rgba(14,165,233,.45)}
.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn.ghost:hover{background:var(--panel)}
.btn.small{padding:8px 12px;font-weight:600}

/* Footer */
.site-footer{padding:26px 0;background:rgba(11,18,32,.6)}
.site-footer .wrap{display:flex;justify-content:space-between;align-items:center}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(14px)}
.reveal.show{opacity:1;transform:translateY(0);transition:opacity .6s ease, transform .6s ease}

/* Responsive */
@media (max-width: 900px){
  .two-col, .grid.two{grid-template-columns:1fr}
  .nav .links{display:none}
  .menu-btn{display:block}
  .sf-grid{grid-template-columns:1fr}
}


/* === Sticky Tabs Fix (override) === */
/* Keep the header always visible */
.nav{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(11,18,32,.9);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}

/* Push content below the fixed header (adjust if your header height changes) */
body{ padding-top: 74px; }

/* Ensure anchors jump below the header */
section{ scroll-margin-top: 86px; }