/* =========================================================================
   On-Chain Intelligence — shared design system
   Matches the areebalikhan.com tool ecosystem (dark, data-first, gradient CTAs)
   ========================================================================= */
:root{
  --bg:#080b12; --bg2:#0a0e17; --panel:#111826; --panel2:#0d1420; --border:#1e293b;
  --txt:#e8eef6; --muted:#8291a7; --faint:#5c6a80;
  --accent:#3b82f6; --accent2:#22d3a6; --grad:linear-gradient(100deg,#3b82f6,#22d3a6);
  --bull:#22c55e; --bear:#ef4444; --neutral:#eab308; --chip:#161f30;
  --radius:16px; --shadow:0 10px 40px -12px rgba(0,0,0,.6);
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
  background:radial-gradient(1200px 620px at 15% -10%,#14213f 0%,var(--bg) 55%) no-repeat,var(--bg);
  color:var(--txt);min-height:100vh;line-height:1.55;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:12px 20px;background:rgba(10,14,23,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:.2px}
.brand .logo{width:30px;height:30px;display:block;flex:none}
.brand b{color:var(--accent2);font-weight:700}
.brand span{white-space:nowrap}
.links{display:flex;align-items:center;gap:4px}
.links a{padding:8px 12px;border-radius:9px;font-size:13.5px;font-weight:600;color:var(--muted);transition:.15s}
.links a:hover{color:var(--txt);background:var(--chip)}
.links a.active{color:var(--txt);background:var(--chip)}
.links a.ext::after{content:" ↗";color:var(--faint);font-size:11px}
.navtoggle,.hamb{display:none}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:11px;font-weight:700;
  font-size:14px;cursor:pointer;border:1px solid var(--border);background:var(--chip);color:var(--txt);transition:.15s}
.btn:hover{border-color:var(--accent)}
.btn.grad{background:var(--grad);border:none;color:#04121a;box-shadow:0 8px 22px -8px var(--accent)}
.btn.grad:hover{filter:brightness(1.06)}
.btn.block{width:100%;justify-content:center}

/* ---------- CARDS / SECTIONS ---------- */
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.section{padding:56px 0}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--accent)}
h1.hero{font-size:clamp(30px,5vw,50px);font-weight:800;letter-spacing:-1.4px;line-height:1.05;margin:14px 0}
.lede{font-size:clamp(15px,2.2vw,19px);color:var(--muted);max-width:640px}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--muted);background:var(--chip);
  border:1px solid var(--border);border-radius:20px;padding:5px 11px}

/* ---------- TOOLS GRID ---------- */
.tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.toolcard{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px;
  display:flex;flex-direction:column;transition:.18s;position:relative;overflow:hidden}
.toolcard:hover{border-color:#2c3b57;transform:translateY(-3px);box-shadow:var(--shadow)}
.toolcard .ic{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;font-size:26px;
  background:var(--panel2);border:1px solid var(--border);margin-bottom:16px}
.toolcard .cat{font-size:11.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--accent)}
.toolcard h3{font-size:21px;font-weight:800;letter-spacing:-.5px;margin:6px 0 10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.toolcard p{color:var(--muted);font-size:14px;flex:1}
.here{font-size:11px;font-weight:700;color:var(--bull);border:1px solid #1c5232;background:#0d2f1c;padding:2px 9px;border-radius:20px}
.toolcard .tags{display:flex;flex-wrap:wrap;gap:7px;margin:16px 0 18px}
.toolcard .tags span{font-size:11px;font-weight:600;color:var(--muted);background:var(--chip);border:1px solid var(--border);border-radius:16px;padding:4px 10px}
.shot{border-radius:10px;border:1px solid var(--border);margin:2px 0 16px;background:var(--panel2);
  aspect-ratio:16/9;width:100%;object-fit:cover;object-position:top}

/* ---------- FAQ ---------- */
.faq details{border:1px solid var(--border);border-radius:12px;background:var(--panel);margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 18px;font-weight:700;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:20px;font-weight:400;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 18px 18px;color:var(--muted);font-size:14px}
.faq .a code{background:var(--panel2);padding:2px 6px;border-radius:5px;color:#a5d6ff;font-size:12.5px}

/* ---------- STEPS (onboarding) ---------- */
.steps{display:grid;gap:16px;counter-reset:step}
.step{display:flex;gap:16px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:20px}
.step .n{counter-increment:step;flex:none;width:38px;height:38px;border-radius:50%;background:var(--grad);color:#04121a;
  display:grid;place-items:center;font-weight:800}
.step .n::before{content:counter(step)}
.step h4{font-size:16px;margin-bottom:5px}
.step p{color:var(--muted);font-size:14px}

/* ---------- ABOUT ---------- */
.prose{max-width:760px}
.prose h2{font-size:22px;margin:30px 0 12px;letter-spacing:-.4px}
.prose p{color:#c3cde0;margin-bottom:14px;font-size:15px}
.prose ul{color:var(--muted);margin:0 0 16px 20px;font-size:14.5px}
.prose li{margin-bottom:6px}
.kv{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:18px 0}
.kv .cell{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px 16px}
.kv .cell .k{font-size:11px;color:var(--faint);text-transform:uppercase;letter-spacing:.6px}
.kv .cell .v{font-weight:700;margin-top:4px;font-size:15px}

/* ---------- FOOTER (slim, single row) ---------- */
.foot{border-top:1px solid var(--border);margin-top:36px;padding:15px 24px;display:flex;align-items:center;
  justify-content:space-between;gap:10px 22px;flex-wrap:wrap;color:var(--muted);font-size:12.5px}
.foot a{color:var(--muted);transition:.15s}.foot a:hover{color:var(--txt)}
.footlinks{display:flex;gap:18px;flex-wrap:wrap;margin:0}
.footlinks a{font-weight:600}
.foot .disc{color:var(--faint);font-size:11.5px}
@media(max-width:620px){.foot{justify-content:center;text-align:center}}

/* ---------- RESPONSIVE NAV ---------- */
@media(max-width:760px){
  .hamb{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
  .hamb span{width:22px;height:2px;background:var(--txt);border-radius:2px;transition:.2s}
  .links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(10,14,23,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);
    padding:10px 14px;max-height:0;overflow:hidden;transition:max-height .25s ease;pointer-events:none}
  .navtoggle:checked ~ .links{max-height:400px;pointer-events:auto}
  .links a{padding:12px}
  .navtoggle:checked ~ .hamb span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .navtoggle:checked ~ .hamb span:nth-child(2){opacity:0}
  .navtoggle:checked ~ .hamb span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}