/* ============================================================
   SyntaAI — Agent article styles (light, Notion-style)
   Shared across the agent article series. Matches the homepage
   aesthetic: warm white, near-black ink, hairline borders,
   Inter + JetBrains Mono, gradient accents.
   ============================================================ */
:root{
  --bg:#FFFFFF; --bg-soft:#F7F7F5; --bg-tint:#FBFBFA; --bg-card:#FFFFFF;
  --ink:#191918; --ink-2:#5F5E5B; --ink-3:#8F8E8A;
  --line:rgba(25,25,24,.08); --line-2:rgba(25,25,24,.15);
  --teal:#0D9488; --cyan:#0E7490; --indigo:#4F46E5; --violet:#9333EA; --pink:#DB2777;
  --crit:#DC2626; --high:#B45309; --ok:#047857; --info:#1D4ED8;
  --grad:linear-gradient(100deg,#0891B2,#4F46E5 45%,#9333EA 75%,#DB2777);
  --grad-soft:linear-gradient(100deg,rgba(8,145,178,.10),rgba(79,70,229,.10) 55%,rgba(219,39,119,.10));
  --sh-sm:0 1px 2px rgba(25,25,24,.05);
  --sh-md:0 10px 30px -12px rgba(25,25,24,.14);
  --sh-lg:0 28px 60px -24px rgba(25,25,24,.20);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-size:17px;line-height:1.72}
h1,h2,h3,h4{line-height:1.15;letter-spacing:-.03em;font-weight:700;color:var(--ink)}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:500;color:var(--indigo)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.serif{font-family:Georgia,'Times New Roman',serif;font-style:italic;font-weight:600;letter-spacing:-.01em}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:100}
.skip:focus{left:0}

/* NAV */
nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s}
nav.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 24px -14px rgba(25,25,24,.14)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.03em}
.brand .mark{width:29px;height:29px;border-radius:8px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:14.5px;font-weight:800;box-shadow:0 4px 14px rgba(79,70,229,.35)}
.nav-links{display:flex;gap:26px}
.nav-links a{font-size:14.5px;color:var(--ink-2);font-weight:500;transition:color .15s}
.nav-links a:hover{color:var(--ink)}
.btn{font-family:'Inter',sans-serif;font-weight:600;font-size:14.5px;padding:10px 18px;border-radius:10px;cursor:pointer;border:1px solid transparent;transition:transform .18s,box-shadow .18s,border-color .18s;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.btn-dark{background:var(--ink);color:#fff;box-shadow:0 6px 20px -6px rgba(25,25,24,.35)}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 12px 28px -8px rgba(25,25,24,.4)}
.btn-ghost{color:var(--ink);background:#fff;border:1px solid var(--line-2);box-shadow:var(--sh-sm)}
.btn-ghost:hover{border-color:rgba(25,25,24,.32);transform:translateY(-1px)}
@media(max-width:720px){.nav-links{display:none}}

/* HERO */
.hero{position:relative;overflow:hidden}
.hero-art{position:absolute;inset:0 0 auto 0;height:520px;z-index:-1;pointer-events:none}
.hero-art::before{content:"";position:absolute;inset:0;background:
  radial-gradient(520px 340px at 15% -60px,rgba(79,70,229,.08),transparent 70%),
  radial-gradient(560px 360px at 88% -40px,rgba(13,148,136,.07),transparent 70%),
  radial-gradient(460px 320px at 60% 20%,rgba(219,39,119,.045),transparent 70%)}
.hero-art::after{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,rgba(25,25,24,.07) 1px,transparent 1px);background-size:22px 22px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 82%);mask-image:linear-gradient(180deg,#000,transparent 82%)}
.hero-in{max-width:820px;margin:0 auto;padding:60px 28px 30px}
.tag-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.pill{display:inline-flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--indigo);border:1px solid var(--line-2);background:#fff;padding:6px 13px;border-radius:100px;box-shadow:var(--sh-sm)}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(13,148,136,.15);animation:pulse 2.4s ease-in-out infinite}
.mode-chip{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.08em;font-weight:500;padding:5px 11px;border-radius:7px;text-transform:uppercase}
.mode-chip.read{background:#ECFDF5;color:#047857}
.mode-chip.detect{background:#EFF6FF;color:#1D4ED8}
.mode-chip.propose{background:#FFFBEB;color:#B45309}
.mode-chip.optin{background:#F5F3FF;color:#6D28D9}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:clamp(33px,4.8vw,52px);font-weight:800;letter-spacing:-.04em;line-height:1.06;margin-bottom:22px}
.hero-sub{font-size:clamp(17px,2vw,20px);color:var(--ink-2);line-height:1.55;max-width:680px;margin-bottom:30px}
.meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-3);padding-bottom:34px;border-bottom:1px solid var(--line)}
.meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-2)}

/* CONTENT */
.content{max-width:760px;margin:0 auto;padding:14px 28px 90px}
.content h2{font-size:clamp(24px,3.2vw,32px);font-weight:800;letter-spacing:-.035em;margin:52px 0 16px}
.content h3{font-size:20px;font-weight:700;letter-spacing:-.02em;margin:34px 0 12px}
.content p{color:var(--ink-2);margin-bottom:20px}
.content ul,.content ol{margin:0 0 22px;padding-left:22px;color:var(--ink-2)}
.content li{margin-bottom:9px}
.content li::marker{color:var(--ink-3)}
.content strong{color:var(--ink);font-weight:600}
.content a.inline{color:var(--indigo);font-weight:500;border-bottom:1px solid rgba(79,70,229,.3)}
.content a.inline:hover{border-bottom-color:var(--indigo)}
.lead{font-size:20px;line-height:1.6;color:var(--ink)!important;font-weight:450}

/* CALLOUTS */
.callout{border:1px solid var(--line-2);border-left-width:3px;background:var(--bg-tint);padding:20px 24px;border-radius:0 14px 14px 0;margin:30px 0}
.callout .label{font-family:'JetBrains Mono',monospace;font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;margin-bottom:9px;color:var(--indigo)}
.callout p{margin-bottom:0;font-size:15.5px;color:var(--ink-2)}
.callout p+p{margin-top:12px}
.callout.warning{border-left-color:var(--high)}
.callout.warning .label{color:var(--high)}
.callout.insight{border-left-color:var(--violet)}
.callout.insight .label{color:var(--violet)}
.callout.good{border-left-color:var(--ok)}
.callout.good .label{color:var(--ok)}
.callout{border-left-color:var(--indigo)}

/* STAT GRID */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:34px 0}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px;text-align:center;box-shadow:var(--sh-sm)}
.stat-num{font-size:34px;font-weight:800;letter-spacing:-.04em;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px;font-variant-numeric:tabular-nums}
.stat-label{font-size:12.5px;color:var(--ink-3);line-height:1.45}
@media(max-width:620px){.stat-grid{grid-template-columns:1fr}}

/* TABLE */
.tbl-scroll{overflow-x:auto;margin:30px 0;border:1px solid var(--line);border-radius:14px}
table.cmp{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
table.cmp th{background:var(--bg-soft);color:var(--ink);font-family:'JetBrains Mono',monospace;font-weight:500;font-size:11px;letter-spacing:.07em;text-transform:uppercase;padding:13px 16px;text-align:left;border-bottom:1px solid var(--line-2)}
table.cmp td{padding:13px 16px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top}
table.cmp tr:last-child td{border-bottom:none}
table.cmp tr:hover td{background:var(--bg-tint)}
.badge{display:inline-block;padding:2px 10px;border-radius:100px;font-size:11px;font-weight:600;white-space:nowrap}
.badge-red{background:#FEF2F2;color:var(--crit)}
.badge-green{background:#ECFDF5;color:var(--ok)}
.badge-amber{background:#FFFBEB;color:var(--high)}
.badge-blue{background:#EFF6FF;color:var(--info)}

/* STEP LIST (how it works, conceptual) */
.steps{list-style:none;padding:0;margin:30px 0;counter-reset:st}
.steps li{position:relative;padding:0 0 22px 52px;counter-increment:st}
.steps li::before{content:counter(st);position:absolute;left:0;top:-2px;width:34px;height:34px;border-radius:10px;background:var(--grad-soft);border:1px solid var(--line-2);display:grid;place-items:center;font-family:'JetBrains Mono',monospace;font-size:14px;font-weight:600;color:var(--indigo)}
.steps li::after{content:"";position:absolute;left:16px;top:36px;bottom:0;width:1px;background:var(--line)}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::after{display:none}
.steps li h4{font-size:16px;font-weight:700;margin-bottom:5px}
.steps li p{font-size:14.5px;margin-bottom:0}

/* PULL QUOTE */
.pull{margin:38px 0;padding:30px 36px;background:var(--grad-soft);border:1px solid var(--line-2);border-radius:18px;position:relative}
.pull p{font-size:21px;line-height:1.5;color:var(--ink);font-weight:450;margin:0}
.pull p .serif{color:var(--violet)}
.pull .src{margin-top:14px;font-size:13px;color:var(--ink-3)}

/* Q&A EXCHANGE (chat article) */
.qa{margin:26px 0;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--sh-sm)}
.qa .q{display:flex;gap:12px;padding:16px 20px;background:var(--bg-soft);border-bottom:1px solid var(--line);font-weight:600;color:var(--ink);font-size:15px}
.qa .a{display:flex;gap:12px;padding:16px 20px;font-size:14.5px;color:var(--ink-2)}
.qa .who{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);flex-shrink:0;width:38px;padding-top:3px}

/* DIVIDER */
.divider{display:flex;align-items:center;gap:16px;margin:50px 0 10px}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
.divider span{font-size:16px;opacity:.6}

/* CHIP ROW (agent spec) */
.spec{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0}
.spec .chip{display:inline-flex;align-items:center;gap:7px;font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);border-radius:8px;padding:7px 12px}
.spec .chip b{color:var(--ink);font-weight:600}

/* CTA */
.cta{margin-top:60px;padding:44px 36px;text-align:center;border:1px solid var(--line-2);border-radius:22px;background:
  radial-gradient(420px 220px at 18% 0%,rgba(79,70,229,.10),transparent 70%),
  radial-gradient(420px 220px at 85% 20%,rgba(219,39,119,.08),transparent 70%),
  radial-gradient(380px 220px at 55% 110%,rgba(13,148,136,.10),transparent 70%),
  var(--bg-tint)}
.cta h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;letter-spacing:-.035em;margin:0 0 12px}
.cta p{max-width:520px;margin:0 auto 26px;font-size:16.5px;color:var(--ink-2)}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta .btn{padding:14px 28px;border-radius:12px}

/* RELATED */
.related{max-width:1000px;margin:0 auto;padding:0 28px 80px}
.related .label{font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--indigo);margin-bottom:8px}
.related h2{font-size:24px;font-weight:800;letter-spacing:-.03em;margin-bottom:24px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 20px;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.rcard:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:var(--line-2)}
.rcard .rtag{font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--indigo);margin-bottom:10px}
.rcard .rtitle{font-size:15px;font-weight:700;letter-spacing:-.015em;line-height:1.35;margin-bottom:9px;flex:1}
.rcard .rsum{font-size:12.5px;color:var(--ink-3);line-height:1.5}
@media(max-width:760px){.related-grid{grid-template-columns:1fr}}

/* FOOTER */
footer{border-top:1px solid var(--line);padding:48px 0 34px;background:var(--bg-tint)}
.foot-in{max-width:1180px;margin:0 auto;padding:0 28px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.foot-in .brand{font-size:17px}
.foot-links{display:flex;gap:22px;font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--ink)}
.foot-copy{width:100%;border-top:1px solid var(--line);margin-top:26px;padding-top:20px;font-size:12.5px;color:var(--ink-3);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media(max-width:680px){
  .hero-in{padding-top:40px}
  .content{padding-bottom:70px}
  .content h2{margin-top:42px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}