/* Shared theme for AI Separations sub-pages (alternative pages + blog).
   Electric indigo + cyan, matching the homepage and the desktop app. */
:root{
  --bg:#0B0D12; --bg2:#13161C; --panel:#13161F; --panel2:#1B1F2A;
  --line:rgba(255,255,255,.07); --line2:rgba(140,124,255,.20);
  --text:#C0C5D4; --heading:#F3F4FA; --muted:#858B9C;
  --v1:#8E7BFF; --v2:#6C4DF6; --accent:#9B8CFF; --cyan:#34D6E8;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0}
body{background:var(--bg);color:var(--text);
  font-family:'Inter','Segoe UI',system-ui,sans-serif;line-height:1.7;letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{color:var(--heading);font-family:'Space Grotesk','Inter',system-ui,sans-serif;
  letter-spacing:-.025em;line-height:1.15;margin:0}
.wrap{max-width:880px;margin:0 auto;padding:0 22px}
.gradient{background:linear-gradient(135deg,var(--v1),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}

/* Nav */
nav{position:sticky;top:0;z-index:50;background:rgba(11,13,18,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav .nav-wrap{max-width:1080px;margin:0 auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:11px}
.mark{height:30px;width:auto;object-fit:contain;display:block;flex:none}
.brand b{color:var(--heading);font-size:16px;font-weight:600}
.nav-cta{font-size:14px;font-weight:600;padding:9px 18px;border-radius:10px;
  background:linear-gradient(135deg,var(--v1),var(--v2));color:#fff!important}
.nav-cta:hover{text-decoration:none;filter:brightness(1.07)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;
  padding:13px 24px;border-radius:11px;cursor:pointer;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--v1),var(--v2));color:#fff!important;box-shadow:0 6px 24px rgba(108,77,246,.34)}
.btn-primary:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 34px rgba(108,77,246,.5)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--heading)!important;border-color:var(--line)}
.btn-ghost:hover{text-decoration:none;background:rgba(255,255,255,.08);border-color:var(--line2)}

/* Layout */
header.hero{padding:64px 0 28px}
header.hero h1{font-size:clamp(30px,4.6vw,46px)}
.kicker{color:var(--accent);font-size:13px;letter-spacing:.12em;text-transform:uppercase;font-weight:600;margin-bottom:14px}
.lead{font-size:19px;color:var(--text);margin:20px 0 0}
section{padding:30px 0}
.cta-row{display:flex;gap:13px;flex-wrap:wrap;margin:30px 0}
.muted{color:var(--muted)}
.prose h2{font-size:26px;margin:38px 0 12px}
.prose h3{font-size:19px;margin:28px 0 8px}
.prose p,.prose li{font-size:16.5px;color:var(--text)}
.prose ul{padding-left:20px}
.prose li{margin:6px 0}
.prose a{color:var(--accent);font-weight:500}

/* Comparison table */
.cmp{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.cmp th,.cmp td{padding:13px 15px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.cmp thead th{background:var(--panel2);color:var(--heading);font-family:'Space Grotesk',sans-serif}
.cmp th:first-child{color:var(--muted);font-weight:500}
.cmp .us{color:var(--accent);font-weight:600}
.cmp tr:last-child td{border-bottom:none}

/* Cards / callout */
.callout{background:linear-gradient(135deg,rgba(140,124,255,.10),rgba(52,214,232,.05));
  border:1px solid var(--line2);border-radius:16px;padding:26px;margin:32px 0}
.callout h3{font-size:20px;margin-bottom:8px}

/* Blog list */
.posts{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.post{display:block;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;transition:border-color .2s,transform .2s}
.post:hover{text-decoration:none;border-color:var(--line2);transform:translateY(-2px)}
.post h3{font-size:19px;color:var(--heading);margin-bottom:6px}
.post p{color:var(--muted);font-size:15px;margin:0}

/* Footer */
footer{border-top:1px solid var(--line);margin-top:40px;padding:30px 0;color:var(--muted);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{color:var(--muted)}
@media(max-width:560px){footer .wrap{justify-content:center;text-align:center}.cta-row .btn{flex:1 1 auto}}