/* ==========================================================================
   OTTO — shared design system
   Charcoal / paper / slate. Space Grotesk display, Inter body, JetBrains Mono labels.
   ========================================================================== */

:root{
  --charcoal:#1d1b19; --charcoal-2:#262420; --charcoal-3:#332f2a;
  --paper:#f7f5f1; --white:#ffffff; --ink:#1d1b19;
  --muted:#726c64; --muted-dark:#a39c92;
  --border:#e7e2d9; --border-dark:rgba(255,255,255,0.11);
  --slate:#4d5c6b; --slate-bright:#7c8b99; --slate-tint:#eef1f4; --off-white:#f2efe9;
  --shadow-sm:0 1px 2px rgba(29,27,25,0.05), 0 2px 8px rgba(29,27,25,0.05);
  --shadow-md:0 4px 16px rgba(29,27,25,0.07), 0 1px 3px rgba(29,27,25,0.06);
  --shadow-lg:0 24px 60px rgba(29,27,25,0.18);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:90px;}
body{background:var(--white);color:var(--ink);font-family:'Inter',sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;font-weight:600;letter-spacing:-0.01em;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
::selection{background:var(--slate-tint);color:var(--slate);}
.wrap{max-width:1100px;margin:0 auto;padding:0 56px;}
@media (max-width:640px){.wrap{padding:0 24px;}}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:12px 18px;z-index:200;}
.skip:focus{left:8px;top:8px;}
:focus-visible{outline:2px solid var(--slate);outline-offset:3px;}

/* ---------- NAV ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,0.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);}
header nav{display:flex;align-items:center;justify-content:space-between;padding:18px 56px;max-width:1100px;margin:0 auto;gap:24px;}
@media (max-width:640px){header nav{padding:16px 24px;}}
.logo{font-size:19px;font-weight:700;letter-spacing:0.02em;display:flex;align-items:center;gap:9px;font-family:'Space Grotesk',sans-serif;flex-shrink:0;}
.logo .dot{width:7px;height:7px;border-radius:50%;background:var(--slate);flex-shrink:0;}
.navlinks{display:flex;gap:26px;font-size:13px;font-weight:600;color:var(--muted);align-items:center;}
.navlinks a:not(.nav-cta){position:relative;padding-bottom:3px;transition:color 0.15s ease;}
.navlinks a:not(.nav-cta):hover{color:var(--ink);}
.navlinks a:not(.nav-cta)::after{content:"";position:absolute;left:0;right:100%;bottom:-1px;height:1px;background:var(--slate);transition:right 0.25s ease;}
.navlinks a:not(.nav-cta):hover::after{right:0;}
.navlinks a[aria-current="page"]{color:var(--ink);}
.navlinks a[aria-current="page"]::after{right:0;}
.nav-cta{font-size:13px;font-weight:700;background:var(--ink);color:#fff;padding:10px 18px;border-radius:2px;transition:background 0.2s ease;white-space:nowrap;}
.nav-cta:hover{background:var(--slate);}
@media (max-width:1000px){.navlinks a:not(.nav-cta){display:none;}}

/* ---------- BUTTONS ---------- */
.btn-primary{background:var(--slate-bright);color:var(--charcoal);font-weight:700;font-size:14px;padding:15px 26px;border-radius:2px;transition:background 0.2s ease, transform 0.15s ease;display:inline-block;border:none;cursor:pointer;font-family:inherit;}
.btn-primary:hover{background:#98a5b0;transform:translateY(-1px);}
.btn-primary.on-light{background:var(--ink);color:#fff;}
.btn-primary.on-light:hover{background:var(--slate);}
.btn-secondary{border:1px solid rgba(255,255,255,0.22);color:#fff;font-weight:600;font-size:14px;padding:15px 26px;border-radius:2px;transition:border-color 0.2s ease, background 0.2s ease;display:inline-block;background:transparent;}
.btn-secondary:hover{border-color:rgba(255,255,255,0.5);background:rgba(255,255,255,0.06);}
.btn-secondary.on-light{border-color:var(--border);color:var(--ink);}
.btn-secondary.on-light:hover{border-color:var(--muted);background:var(--paper);}

/* ---------- HERO ---------- */
.hero{background:var(--charcoal);color:var(--off-white);padding:150px 0 80px;}
@media (max-width:640px){.hero{padding:120px 0 60px;}}
.hero-index{display:flex;align-items:center;gap:14px;margin-bottom:24px;flex-wrap:wrap;}
.hero-index .num{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--slate-bright);}
.hero-index .line{width:34px;height:1px;background:var(--slate-bright);}
.hero-index .txt{font-size:12px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted-dark);}
.hero h1{font-size:clamp(32px,5vw,54px);line-height:1.14;margin-bottom:20px;font-weight:500;max-width:760px;}
.hero p.sub{font-size:17px;color:var(--muted-dark);max-width:620px;line-height:1.65;margin-bottom:32px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;}

/* breadcrumbs */
.crumbs{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--muted-dark);margin-bottom:18px;display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.crumbs a{color:var(--slate-bright);}
.crumbs a:hover{color:var(--off-white);}
.crumbs .sep{opacity:0.45;}

/* ---------- SECTIONS ---------- */
section{position:relative;padding:92px 0;}
@media (max-width:640px){section{padding:64px 0;}}
section.soft{background:var(--paper);}
section.dark{background:var(--charcoal);color:var(--off-white);}
section.dark .section-sub{color:var(--muted-dark);}
section.dark .section-tag .txt{color:var(--slate-bright);}
section.dark .section-tag .line{background:var(--slate-bright);}
.section-tag{display:inline-flex;align-items:center;gap:10px;margin-bottom:20px;}
.section-tag .line{width:24px;height:1px;background:var(--slate);}
.section-tag .txt{font-size:12px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--slate);}
.section-title{font-size:clamp(25px,3.4vw,36px);max-width:700px;margin-bottom:16px;}
.section-sub{color:var(--muted);font-size:15.5px;max-width:640px;line-height:1.65;margin-bottom:48px;}

/* ---------- CARD GRIDS ---------- */
.agent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:900px){.agent-grid{grid-template-columns:1fr;}}
.agent-card{background:#fff;border:1px solid var(--border);border-radius:4px;padding:28px;box-shadow:var(--shadow-sm);}
.agent-card .icon{width:38px;height:38px;border-radius:50%;background:var(--slate-tint);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:17px;}
.agent-card h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.agent-card p{color:var(--muted);font-size:14px;line-height:1.6;}

.scenario-card{background:#fff;border:1px solid var(--border);border-radius:4px;padding:40px;box-shadow:var(--shadow-md);}
@media (max-width:640px){.scenario-card{padding:26px;}}
.scenario-tag{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--muted);background:var(--paper);border:1px solid var(--border);padding:6px 12px;border-radius:100px;display:inline-block;margin-bottom:20px;}
.scenario-card p{font-size:16px;line-height:1.75;color:var(--ink);max-width:760px;}

/* solutions hub cards */
.hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:900px){.hub-grid{grid-template-columns:1fr;}}
.hub-card{background:#fff;border:1px solid var(--border);border-radius:4px;padding:32px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform 0.18s ease, box-shadow 0.18s ease;}
.hub-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.hub-card .num{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--slate);margin-bottom:14px;}
.hub-card h3{font-size:20px;margin-bottom:10px;}
.hub-card p{color:var(--muted);font-size:14.5px;line-height:1.65;margin-bottom:18px;flex:1;}
.hub-card .go{font-size:13px;font-weight:700;color:var(--slate);}

/* cross-links between sibling pages */
.siblings{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media (max-width:720px){.siblings{grid-template-columns:1fr;}}
.sib{border:1px solid var(--border);border-radius:4px;padding:24px;background:#fff;transition:border-color 0.2s ease,background 0.2s ease;}
.sib:hover{border-color:var(--slate);background:var(--paper);}
.sib .lbl{font-family:'JetBrains Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:0.1em;color:var(--muted);margin-bottom:8px;}
.sib h3{font-size:17px;margin-bottom:6px;}
.sib p{font-size:14px;color:var(--muted);line-height:1.6;}

/* ---------- PRICING ---------- */
.blueprint{background:var(--charcoal-2);color:var(--off-white);border-radius:4px;padding:40px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;margin-bottom:32px;}
@media (max-width:820px){.blueprint{grid-template-columns:1fr;padding:28px;}}
.blueprint .lbl{font-family:'JetBrains Mono',monospace;font-size:11.5px;text-transform:uppercase;letter-spacing:0.1em;color:var(--slate-bright);margin-bottom:10px;}
.blueprint h3{font-size:24px;margin-bottom:10px;}
.blueprint p{color:var(--muted-dark);font-size:15px;line-height:1.65;max-width:560px;}
.blueprint .price{font-family:'Space Grotesk',sans-serif;font-size:40px;font-weight:600;white-space:nowrap;}
.blueprint .price small{display:block;font-family:'Inter',sans-serif;font-size:12.5px;font-weight:400;color:var(--muted-dark);line-height:1.5;margin-top:8px;max-width:230px;white-space:normal;}

.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
@media (max-width:960px){.tiers{grid-template-columns:1fr;}}
.tier{background:#fff;border:1px solid var(--border);border-radius:4px;padding:32px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;height:100%;}
.tier.featured{border-color:var(--slate);box-shadow:var(--shadow-md);position:relative;}
.tier .flag{position:absolute;top:-11px;left:32px;background:var(--slate);color:#fff;font-size:10.5px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;padding:5px 11px;border-radius:2px;}
.tier h3{font-size:20px;margin-bottom:4px;}
.tier .for{font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.tier .amt{font-family:'Space Grotesk',sans-serif;font-size:38px;font-weight:600;line-height:1;}
.tier .amt span{font-size:15px;font-weight:400;color:var(--muted);}
.tier .term{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--muted);margin:10px 0 22px;padding-bottom:20px;border-bottom:1px solid var(--border);}
.tier ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:22px;flex:1;}
.tier li{font-size:14px;color:var(--ink);padding-left:22px;position:relative;line-height:1.55;}
.tier li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:var(--slate-tint);border:1.5px solid var(--slate);}
.tier .best{font-size:13px;color:var(--muted);font-style:italic;line-height:1.55;margin-bottom:22px;padding-top:18px;border-top:1px solid var(--border);}
.tier .cta{display:block;text-align:center;font-size:13.5px;font-weight:700;padding:13px;border-radius:2px;border:1px solid var(--border);transition:all 0.2s ease;}
.tier .cta:hover{border-color:var(--ink);background:var(--paper);}
.tier.featured .cta{background:var(--ink);color:#fff;border-color:var(--ink);}
.tier.featured .cta:hover{background:var(--slate);border-color:var(--slate);}

.enterprise{margin-top:24px;border:1px dashed var(--border);border-radius:4px;padding:28px 32px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;background:var(--paper);}
.enterprise h3{font-size:17px;margin-bottom:6px;}
.enterprise p{font-size:14px;color:var(--muted);max-width:560px;line-height:1.6;}

/* comparison table */
.cmp-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:4px;background:#fff;}
table.cmp{width:100%;border-collapse:collapse;min-width:680px;font-size:14.5px;}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top;line-height:1.55;}
table.cmp thead th{background:var(--charcoal);color:var(--off-white);font-family:'Space Grotesk',sans-serif;font-size:14px;font-weight:600;border-bottom:none;}
table.cmp thead th:first-child{width:210px;}
table.cmp tbody th{font-weight:600;color:var(--ink);background:var(--paper);width:210px;font-family:'Inter',sans-serif;font-size:14px;}
table.cmp td{color:var(--muted);}
table.cmp td.yes{color:var(--ink);}
table.cmp tr:last-child th,table.cmp tr:last-child td{border-bottom:none;}
.cmp-note{font-size:13px;color:var(--muted);margin-top:14px;font-style:italic;}

/* ---------- FAQ ---------- */
.faq-nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:44px;}
.faq-nav a{font-size:12.5px;font-weight:600;color:var(--muted);border:1px solid var(--border);padding:9px 15px;border-radius:100px;transition:all 0.2s ease;background:#fff;}
.faq-nav a:hover{border-color:var(--slate);color:var(--ink);}
.faq-group{margin-bottom:56px;scroll-margin-top:100px;}
.faq-group > h2{font-size:22px;margin-bottom:6px;}
.faq-group > .gsub{font-size:14px;color:var(--muted);margin-bottom:26px;}
details.qa{border-bottom:1px solid var(--border);}
details.qa summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font-size:16px;font-weight:600;font-family:'Space Grotesk',sans-serif;position:relative;transition:color 0.15s ease;}
details.qa summary::-webkit-details-marker{display:none;}
details.qa summary:hover{color:var(--slate);}
details.qa summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--slate);transition:transform 0.2s ease;line-height:1;}
details.qa[open] summary::after{transform:translateY(-50%) rotate(45deg);}
details.qa .a{padding:0 40px 24px 0;color:var(--muted);font-size:15px;line-height:1.75;}
details.qa .a p + p{margin-top:12px;}
details.qa .a ul{margin:12px 0 0 20px;display:flex;flex-direction:column;gap:8px;}
details.qa .a a{color:var(--slate);text-decoration:underline;text-underline-offset:2px;}

/* ---------- PROSE / LEGAL ---------- */
.prose{max-width:720px;}
.prose h2{font-size:20px;margin:40px 0 14px;}
.prose h3{font-size:16.5px;margin:28px 0 10px;}
.prose p,.prose li{font-size:15.5px;color:var(--ink);line-height:1.75;}
.prose p{margin-bottom:14px;}
.prose ul,.prose ol{padding-left:22px;margin-bottom:16px;display:flex;flex-direction:column;gap:9px;}
.prose a{color:var(--slate);text-decoration:underline;text-underline-offset:2px;}
.prose .updated{font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--muted);margin-bottom:36px;}
.prose > h2:first-child{margin-top:0;}

/* ---------- FINAL CTA ---------- */
.final{padding:88px 0;background:var(--charcoal);color:var(--off-white);}
.final h2{font-size:clamp(25px,4vw,38px);max-width:620px;margin-bottom:16px;}
.final p{color:var(--muted-dark);font-size:16px;max-width:500px;margin-bottom:30px;line-height:1.65;}

/* ---------- FOOTER ---------- */
footer{padding:60px 0 32px;background:var(--charcoal);color:var(--muted-dark);}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:34px;padding-bottom:40px;border-bottom:1px solid var(--border-dark);}
@media (max-width:1000px){.foot-grid{grid-template-columns:1fr 1fr 1fr;gap:32px;}}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr;}}
.foot-brand .logo{color:var(--off-white);margin-bottom:14px;}
.foot-brand p{font-size:13.5px;line-height:1.7;max-width:280px;color:var(--muted-dark);}
.foot-col h4{font-size:11.5px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--off-white);margin-bottom:16px;font-family:'Inter',sans-serif;}
.foot-col a{display:block;font-size:13.5px;color:var(--muted-dark);margin-bottom:11px;transition:color 0.15s ease;}
.foot-col a:hover{color:var(--slate-bright);}
.foot-base{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:24px;}
.foot-tag{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--muted-dark);}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:0.01ms !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}
}

/* ---------- BOOK PAGE ---------- */
.expect-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:820px){.expect-grid{grid-template-columns:1fr;}}
.expect{border-top:2px solid var(--slate);padding-top:18px;}
.expect .n{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--slate);margin-bottom:10px;}
.expect p{font-size:14.5px;color:var(--muted);line-height:1.65;}
.expect-note{margin-top:32px;font-size:14px;color:var(--muted);font-style:italic;max-width:640px;}

.booking-layout{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
@media (max-width:960px){.booking-layout{grid-template-columns:1fr;gap:56px;}}
.booking-layout h3{font-size:20px;margin-bottom:8px;}
.bf-lede{color:var(--muted);font-size:14.5px;line-height:1.65;margin-bottom:26px;}

#ottoForm{display:flex;flex-direction:column;gap:16px;}
.frow{display:flex;flex-direction:column;gap:7px;}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media (max-width:520px){.fgrid{grid-template-columns:1fr;}}
.frow label{font-size:12px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted);}
.frow label span{color:var(--slate);}
.frow input,.frow select,.frow textarea{
  font-family:'Inter',sans-serif;font-size:14.5px;color:var(--ink);background:#fff;
  border:1px solid var(--border);border-radius:2px;padding:12px 14px;width:100%;
  transition:border-color 0.18s ease, box-shadow 0.18s ease;}
.frow textarea{resize:vertical;min-height:112px;line-height:1.6;}
.frow input:focus,.frow select:focus,.frow textarea:focus{
  outline:none;border-color:var(--slate);box-shadow:0 0 0 3px rgba(77,92,107,0.11);}
.frow input::placeholder,.frow textarea::placeholder{color:#a8a29a;}
#ofBtn{margin-top:6px;align-self:flex-start;}
#ofBtn:disabled{opacity:0.6;cursor:default;transform:none;}
.of-hp{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.of-error{display:none;font-size:13.5px;color:#9b2c1f;background:#fdf0ed;border:1px solid #f0cfc7;
  border-radius:3px;padding:11px 14px;line-height:1.5;}
.of-error.active{display:block;}
.of-success{display:none;border:1px solid var(--border);border-left:3px solid var(--slate);
  background:#fff;border-radius:3px;padding:32px;box-shadow:var(--shadow-sm);}
.of-success.active{display:block;}
.of-success .tick{width:40px;height:40px;border-radius:50%;background:var(--slate-tint);color:var(--slate);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px;}
.of-success h4{font-size:19px;margin-bottom:8px;}
.of-success p{font-size:14.5px;color:var(--muted);line-height:1.7;}

.calendly-wrapper{border:1px solid var(--border-dark);border-radius:4px;overflow:hidden;background:var(--charcoal);}
.calendly-inline-widget{min-width:100%;height:700px;}
@media (max-width:640px){.calendly-inline-widget,.calendly-wrapper{height:940px;min-height:940px;}}

/* ---------- MOBILE MENU ---------- */
.navtoggle{display:none;background:none;border:1px solid var(--border);border-radius:2px;
  padding:9px 11px;cursor:pointer;line-height:0;margin-left:auto;}
.navtoggle span{display:block;width:17px;height:1.5px;background:var(--ink);transition:transform .22s ease,opacity .18s ease;}
.navtoggle span + span{margin-top:4px;}
.navtoggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.navtoggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.navtoggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.mobilenav{display:none;border-top:1px solid var(--border);background:rgba(255,255,255,0.98);
  backdrop-filter:blur(10px);padding:8px 24px 20px;}
.mobilenav.open{display:block;}
.mobilenav > a{display:block;padding:13px 0;font-size:15px;font-weight:600;border-bottom:1px solid var(--border);}
.mobilenav > a:last-child{border-bottom:none;margin-top:14px;text-align:center;background:var(--ink);
  color:#fff;border-radius:2px;padding:14px;}
@media (max-width:1000px){.navtoggle{display:block;}}
@media (min-width:1001px){.mobilenav{display:none !important;}}

/* ==========================================================================
   v2 — Platforms, stack strip, comparison block, use cases, blog, motion
   ========================================================================== */

/* ---------- SHARED REVEAL (JS adds .visible via IntersectionObserver) ---------- */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity 0.6s ease, transform 0.6s ease;}
.js .reveal.visible{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){.js .reveal{opacity:1;transform:none;}}

/* ---------- PLATFORMS NAV DROPDOWN ---------- */
.navdrop{position:relative;display:flex;align-items:center;}
.navdrop-trigger{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:inherit;padding-bottom:3px;cursor:pointer;background:none;border:none;font-family:inherit;
  position:relative;transition:color 0.15s ease;}
.navdrop-trigger:hover{color:var(--ink);}
header.on-dark .navdrop-trigger:hover{color:var(--off-white);}
.navdrop-trigger::after{content:"";position:absolute;left:0;right:100%;bottom:-1px;height:1px;
  background:var(--slate);transition:right 0.25s ease;}
.navdrop-trigger:hover::after,.navdrop[data-open="true"] .navdrop-trigger::after,
.navdrop-trigger[aria-current="page"]::after{right:0;}
.navdrop-trigger[aria-current="page"]{color:var(--ink);}
header.on-dark .navdrop-trigger[aria-current="page"]{color:var(--off-white);}
.navdrop-trigger .chev{width:9px;height:9px;flex-shrink:0;opacity:0.6;transition:transform 0.2s ease;}
.navdrop[data-open="true"] .navdrop-trigger .chev{transform:rotate(180deg);}
.navdrop-menu{position:absolute;top:100%;left:-14px;min-width:250px;z-index:120;
  background:#fff;border:1px solid var(--border);border-radius:3px;box-shadow:var(--shadow-md);
  padding:7px;margin-top:14px;
  opacity:0;visibility:hidden;transform:translateY(-5px);
  transition:opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;}
.navdrop-menu::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px;}
.navdrop[data-open="true"] .navdrop-menu{opacity:1;visibility:visible;transform:translateY(0);}
.navlinks .navdrop-menu a{display:block;padding:9px 12px;border-radius:2px;font-size:13.5px;
  font-weight:600;color:var(--ink);transition:background 0.15s ease, color 0.15s ease;padding-bottom:9px;}
.navlinks .navdrop-menu a::after{display:none;}
.navlinks .navdrop-menu a:hover{background:var(--paper);color:var(--slate);}
.navlinks .navdrop-menu a[aria-current="page"]{color:var(--slate);background:var(--paper);}
.navdrop-menu a .d{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:2px;line-height:1.45;}
@media (max-width:1000px){.navdrop{display:none;}}

/* mobile: dropdown flattens into a labelled group */
.mobilenav-group{border-bottom:1px solid var(--border);padding:6px 0 10px;}
.mobilenav-group .mg-label{font-family:'JetBrains Mono',monospace;font-size:11px;text-transform:uppercase;
  letter-spacing:0.1em;color:var(--muted);padding:12px 0 4px;}
.mobilenav-group a{display:block;padding:9px 0 9px 14px;font-size:14.5px;font-weight:600;
  border-bottom:none;border-left:1px solid var(--border);margin-left:2px;}

/* ---------- STACK STRIP ---------- */
.stack-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;}
@media (max-width:900px){.stack-strip{grid-template-columns:repeat(3,1fr);}}
@media (max-width:560px){.stack-strip{grid-template-columns:repeat(2,1fr);}}
.stack-item{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  min-height:86px;padding:18px 14px;background:#fff;border:1px solid var(--border);border-radius:4px;
  font-family:'Space Grotesk',sans-serif;font-size:15.5px;font-weight:600;letter-spacing:-0.01em;
  color:var(--muted);filter:grayscale(1);
  transition:color 0.15s ease, border-color 0.15s ease, filter 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;}
a.stack-item:hover{color:var(--ink);border-color:var(--slate);filter:grayscale(0);
  transform:translateY(-2px);box-shadow:var(--shadow-md);}
.stack-item.is-static{cursor:default;}
.stack-item .sub{display:block;font-family:'JetBrains Mono',monospace;font-size:10.5px;font-weight:500;
  letter-spacing:0.08em;text-transform:uppercase;color:var(--muted);margin-top:6px;}
.stack-note{margin-top:22px;font-size:14px;color:var(--muted);}
.stack-note a{color:var(--slate);font-weight:600;}

/* ---------- COMPARISON BLOCK ---------- */
.cmp-block{position:relative;background:var(--paper);border:1px solid var(--border);
  border-radius:4px;padding:34px 38px 34px 42px;overflow:hidden;}
@media (max-width:640px){.cmp-block{padding:26px 24px 26px 28px;}}
.cmp-block::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--slate);
  transform:scaleY(0);transform-origin:top;transition:transform 0.4s ease 0.15s;}
.cmp-block.visible::before,.no-js .cmp-block::before{transform:scaleY(1);}
.cmp-label{font-family:'JetBrains Mono',monospace;font-size:11.5px;text-transform:uppercase;
  letter-spacing:0.1em;color:var(--slate);margin-bottom:14px;}
.cmp-block p{font-size:16.5px;line-height:1.75;color:var(--ink);max-width:740px;}
.cmp-block p + p{margin-top:14px;}
.cmp-block strong{font-weight:600;}

/* ---------- USE CASES ---------- */
.usecases{display:flex;flex-direction:column;}
.usecase{display:grid;grid-template-columns:76px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--border);}
.usecase:last-child{border-bottom:none;}
@media (max-width:640px){.usecase{grid-template-columns:1fr;gap:8px;}}
.usecase .n{font-family:'JetBrains Mono',monospace;font-size:14px;color:var(--slate);padding-top:3px;}
.usecase h3{font-size:18.5px;margin-bottom:7px;}
.usecase p{color:var(--muted);font-size:15px;line-height:1.65;max-width:640px;}
.js .usecase.reveal:nth-child(2){transition-delay:0.1s;}
.js .usecase.reveal:nth-child(3){transition-delay:0.2s;}
.js .usecase.reveal:nth-child(4){transition-delay:0.3s;}

/* ---------- HERO WITH PHOTOGRAPHY (platform pages) ---------- */
.hero-photo{position:relative;overflow:hidden;padding:168px 0 92px;}
@media (max-width:640px){.hero-photo{padding:126px 0 64px;}}
.hero-photo .hero-bg{position:absolute;left:0;right:0;top:-8%;bottom:-8%;z-index:0;will-change:transform;}
.hero-photo .hero-bg img{width:100%;height:100%;object-fit:cover;object-position:64% 42%;
  filter:grayscale(1) contrast(1.1) brightness(0.78);}
.hero-photo .grade{position:absolute;inset:0;background:linear-gradient(100deg,
  rgba(20,19,17,0.95) 0%, rgba(20,19,17,0.86) 32%, rgba(20,19,17,0.52) 68%, rgba(20,19,17,0.28) 100%);}
.hero-photo .grade-b{position:absolute;inset:0;background:linear-gradient(0deg, rgba(20,19,17,0.62), transparent 42%);}
.hero-photo .wrap{position:relative;z-index:1;}
.hero-photo h1{max-width:680px;}

/* ---------- CARD HOVER LIFT ---------- */
.agent-card{transition:transform 0.18s ease, box-shadow 0.18s ease;}
.agent-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}

/* ---------- GRID VARIANTS ---------- */
.hub-grid.four{grid-template-columns:repeat(2,1fr);}
@media (max-width:760px){.hub-grid.four{grid-template-columns:1fr;}}
.siblings{grid-template-columns:repeat(auto-fit,minmax(228px,1fr));}

/* ---------- BLOG ---------- */
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
@media (max-width:820px){.post-grid{grid-template-columns:1fr;}}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:4px;padding:30px;box-shadow:var(--shadow-sm);
  transition:transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--slate);}
.post-card .meta{font-family:'JetBrains Mono',monospace;font-size:11.5px;text-transform:uppercase;
  letter-spacing:0.09em;color:var(--muted);margin-bottom:14px;}
.post-card h3{font-size:19.5px;line-height:1.35;margin-bottom:10px;}
.post-card p{font-size:14.5px;color:var(--muted);line-height:1.65;margin-bottom:18px;flex:1;}
.post-card .go{font-size:13px;font-weight:700;color:var(--slate);}
.post-meta{font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--muted-dark);
  margin-bottom:18px;display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.post-meta .sep{opacity:0.45;}
.post-body{max-width:720px;}
.post-body > .lede{font-size:18.5px;line-height:1.65;color:var(--ink);margin-bottom:30px;font-weight:500;}
.post-body h2{font-size:23px;margin:44px 0 14px;}
.post-body h3{font-size:17.5px;margin:30px 0 10px;}
.post-body p{font-size:16.5px;line-height:1.78;color:var(--ink);margin-bottom:16px;}
.post-body ul,.post-body ol{padding-left:22px;margin-bottom:20px;display:flex;flex-direction:column;gap:10px;}
.post-body li{font-size:16.5px;line-height:1.7;color:var(--ink);}
.post-body a{color:var(--slate);text-decoration:underline;text-underline-offset:2px;font-weight:500;}
.post-body .callout{border-left:3px solid var(--slate);background:var(--paper);padding:22px 26px;
  border-radius:0 4px 4px 0;margin:28px 0;}
.post-body .callout p{font-size:15.5px;margin-bottom:0;color:var(--muted);}
.post-body .callout p + p{margin-top:12px;}
.post-body .callout strong{color:var(--ink);}
.post-cta{margin-top:44px;padding-top:32px;border-top:1px solid var(--border);}
.post-cta h3{font-size:19px;margin-bottom:8px;}
.post-cta p{font-size:15px;color:var(--muted);line-height:1.65;margin-bottom:20px;max-width:560px;}
.footnote{font-size:13.5px;color:var(--muted);line-height:1.65;margin-top:36px;padding-top:20px;
  border-top:1px solid var(--border);}
.footnote a{color:var(--slate);text-decoration:underline;text-underline-offset:2px;}

/* ---------- QUALIFIER (good fit / not a fit) — shared to subpages ---------- */
.fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
@media (max-width:760px){.fit-grid{grid-template-columns:1fr;}}
.fit-col{background:#fff;border-radius:4px;padding:32px;border:1px solid var(--border);box-shadow:var(--shadow-sm);}
.fit-col.good{border-color:#cfd8e0;}
.fit-col h3{font-size:14.5px;font-weight:700;margin-bottom:20px;letter-spacing:0.08em;font-family:'Inter',sans-serif;}
.fit-col.good h3{color:var(--slate);}
.fit-col.bad h3{color:var(--muted);}
.fit-col ul{list-style:none;display:flex;flex-direction:column;gap:15px;}
.fit-col li{font-size:15px;color:var(--muted);line-height:1.6;padding-left:26px;position:relative;}
.fit-col.good li::before{content:"✓";position:absolute;left:0;color:var(--slate);font-weight:700;}
.fit-col.bad li::before{content:"–";position:absolute;left:2px;color:var(--muted);font-weight:700;}