:root{
  --paper:#F8FAFC;--card:#FFFFFF;
  --ink:#1A1D24;--ink-soft:#3A3F50;--ink-mute:#8A8F9C;
  --line:#E4E8EE;--line-strong:#CDD3DC;
  --accent:#00B8D4;--accent-hover:#1AC9E3;
  --d-bg:#1A1D24;--d-bg2:#232630;--d-line:#2C2F3A;--d-text:#F8FAFC;--d-mute:#9AA0AC;
  --display:'Space Grotesk',sans-serif;--body:'Plus Jakarta Sans',sans-serif;--mono:'Space Mono',monospace;
  --maxw:1120px;--pad:40px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--paper);color:var(--ink-soft);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--accent);color:var(--ink)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}

/* MASTHEAD / NAV */
.masthead{border-bottom:1px solid var(--line);background:var(--paper)}
.masthead .wrap{display:flex;justify-content:space-between;align-items:center;padding:9px var(--pad);font-family:var(--mono);font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-mute)}
@media(max-width:640px){.masthead .m-right{display:none}}
.nav{position:sticky;top:0;z-index:100;background:rgba(248,250,252,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s}
.nav.stuck{box-shadow:0 2px 20px rgba(26,29,36,.08)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:var(--display);font-weight:700;font-size:17px;letter-spacing:-.02em;color:var(--ink)}
.brand .dot{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:30px;list-style:none}
.nav-links a,.nav-links .dd-trigger{font-family:var(--body);font-weight:500;font-size:15px;color:var(--ink-soft);transition:color .18s;cursor:pointer;display:inline-flex;align-items:center;gap:4px}
.nav-links a:hover,.nav-links .dd-trigger:hover,.nav-links .dd-trigger.current{color:var(--ink)}
.nav-links .dd-trigger.current{font-weight:600}
.nav-links .caret{font-size:10px;color:var(--ink-mute);transition:transform .2s}
.dd{position:relative}
.dd:hover .caret{transform:rotate(180deg)}
.dd-menu{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(6px);background:var(--card);border:1px solid var(--line);border-radius:6px;box-shadow:0 20px 44px -24px rgba(26,29,36,.4);min-width:200px;padding:8px;opacity:0;visibility:hidden;transition:.2s}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{opacity:1;visibility:visible;transform:translateX(-50%)}
.dd-menu a{display:block;padding:10px 12px;border-radius:4px;font-size:14px;color:var(--ink-soft)}
.dd-menu a:hover{color:var(--accent);background:var(--paper)}
.dd-menu a small{display:block;font-size:11px;color:var(--ink-mute);font-weight:400;margin-top:2px}
.nav-cta{background:var(--ink);color:var(--paper);font-family:var(--display);font-weight:700;font-size:14px;padding:11px 20px;border-radius:3px;border:0;transition:background .2s}
.nav-cta:hover{background:#2D3140}
.hamb{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:6px}
.hamb span{width:22px;height:2px;background:var(--ink);transition:.25s}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:var(--ink);color:var(--paper);font-family:var(--display);font-weight:700;font-size:15px;padding:15px 26px;border-radius:3px;border:0;transition:background .2s}
.btn:hover{background:#2D3140}
.btn-accent{display:inline-flex;align-items:center;gap:9px;background:var(--accent);color:var(--ink);font-family:var(--display);font-weight:700;font-size:15px;padding:15px 28px;border-radius:3px;border:0;transition:background .2s}
.btn-accent:hover{background:var(--accent-hover)}
.btn-doutline{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--d-line);color:var(--d-text);background:transparent;font-family:var(--display);font-weight:700;font-size:15px;padding:14px 26px;border-radius:3px;transition:.2s}
.btn-doutline:hover{border-color:var(--accent);color:var(--accent)}

/* HEADINGS / LABELS */
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);font-weight:700;letter-spacing:-.025em;line-height:1.13}
.eyebrow{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--ink-mute);display:block;margin-bottom:20px}
.chapter{padding-top:40px}
.chapter .bar{border-top:1px solid var(--line);padding-top:14px;display:flex;align-items:center;gap:18px}
.chapter .c{font-family:var(--mono);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-mute);white-space:nowrap}
.chapter .c b{color:var(--accent);font-weight:700}
.chapter .ln{flex:1;height:1px;background:var(--line)}
section{padding:70px 0}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.center-head{text-align:center;max-width:760px;margin:0 auto 48px}
.center-head .eyebrow{color:var(--ink-mute)}
.center-head h2{font-size:40px;line-height:1.1;margin-bottom:18px}
.center-head p{font-size:16px;color:var(--ink-soft);line-height:1.75;max-width:600px;margin:0 auto}

/* HERO */
.hero{padding:56px 0 66px}
.hero .eyebrow{color:var(--ink-mute)}
.hero h1{font-size:58px;line-height:1.06;letter-spacing:-.04em;max-width:820px;margin-bottom:28px}
.hero h1 .accent{color:var(--accent)}
.hero .lede{font-size:18px;line-height:1.7;color:var(--ink-soft);max-width:540px;margin-bottom:38px}
.hero-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--ink-mute)}
.hero-meta .num{color:var(--accent)}
.hero-meta .sep{width:1px;height:14px;background:var(--line-strong)}

/* PUBLICATION CARD */
.pub-grid{display:grid;gap:24px}
.pub-grid.two{grid-template-columns:1fr 1fr}
.pub-grid.three{grid-template-columns:repeat(3,1fr)}
.pub-card{background:var(--card);border:1px solid var(--line-strong);border-radius:5px;padding:26px;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s}
.pub-card:hover{transform:translateY(-5px);box-shadow:0 28px 56px -40px rgba(26,29,36,.32);border-color:var(--ink)}
.pub-card.feat{border-top:2px solid var(--accent)}
.pub-num{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.pub-badge{align-self:flex-start;font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--ink-mute);border:1px solid var(--line-strong);border-radius:3px;padding:4px 9px;margin-bottom:16px}
.pub-card h3{font-size:20px;font-weight:600;letter-spacing:-.015em;margin-bottom:10px;line-height:1.2}
.pub-desc{font-size:14px;color:var(--ink-soft);line-height:1.55;margin-bottom:18px}
.pub-problem{border-left:2px solid var(--accent);padding-left:14px;margin-bottom:18px}
.pub-problem .l{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:6px}
.pub-problem p{font-size:14px;color:var(--ink);font-weight:500;line-height:1.5}
.pub-learn .l{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-mute);display:block;margin-bottom:10px}
.pub-learn ul{list-style:none;margin-bottom:6px}
.pub-learn li{display:flex;gap:10px;align-items:baseline;font-size:14px;color:var(--ink-soft);padding:4px 0}
.pub-learn li::before{content:"•";color:var(--accent);font-weight:700}
.pub-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.pub-foot .pages{font-family:var(--mono);font-size:11px;color:var(--ink-mute);margin-bottom:12px}
.pub-foot .frow{display:flex;align-items:center;justify-content:space-between}
.pub-foot .price{font-family:var(--display);font-weight:700;font-size:20px;color:var(--ink)}
.pub-foot .price.free{color:var(--accent)}
.pub-foot .pget{font-family:var(--display);font-weight:600;font-size:13px;color:var(--ink);display:inline-flex;gap:6px;transition:color .2s,gap .2s}
.pub-card:hover .pget{color:var(--accent);gap:10px}

/* COLLECTION CARD */
.coll-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.coll-card{background:var(--card);border:1px solid var(--line-strong);border-radius:5px;padding:28px;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.coll-card:hover{transform:translateY(-5px);box-shadow:0 28px 56px -40px rgba(26,29,36,.3)}
.coll-card .ce{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.coll-card h3{font-size:21px;font-weight:600;letter-spacing:-.015em;line-height:1.22;margin-bottom:22px}
.coll-card .cil{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-mute);display:block;margin-bottom:14px}
.coll-card ul{list-style:none;margin-bottom:6px}
.coll-card li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-soft);padding:9px 0;border-bottom:1px solid var(--line)}
.coll-card li::before{content:"•";color:var(--accent);font-weight:700}
.coll-card .cf{margin-top:auto;padding-top:20px;display:flex;align-items:center;justify-content:space-between}
.coll-card .cf .n{font-family:var(--mono);font-size:11px;color:var(--ink-mute)}
.coll-card .cf a{font-family:var(--display);font-weight:600;font-size:13px;color:var(--ink);display:inline-flex;gap:6px;transition:color .2s,gap .2s}
.coll-card:hover .cf a{color:var(--accent);gap:10px}

/* FILTER TABS */
.ftabs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:48px}
.ftab{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--ink-soft);background:var(--card);border:1px solid var(--line-strong);border-radius:3px;padding:9px 14px;transition:.18s}
.ftab:hover{border-color:var(--ink)}
.ftab.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* PREMIUM BAND */
.premium{position:relative;overflow:hidden;background:var(--d-bg);color:var(--d-text)}
.premium::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--d-bg2) 1px,transparent 1px),linear-gradient(90deg,var(--d-bg2) 1px,transparent 1px);background-size:44px 44px;opacity:.35}
.premium .wrap{position:relative;padding:80px var(--pad);display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.premium .pe{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--accent);margin-bottom:22px}
.premium h2{color:var(--d-text);font-size:38px;line-height:1.12;margin-bottom:22px}
.premium .pbody{font-size:16px;color:var(--d-mute);line-height:1.7;max-width:460px;margin-bottom:30px}
.premium .pprice{font-family:var(--display);font-weight:700;font-size:52px;color:var(--d-text);letter-spacing:-.03em;margin-bottom:8px}
.premium .pprice small{font-family:var(--body);font-size:16px;font-weight:500;color:var(--d-mute);letter-spacing:0}
.premium .pnote{font-family:var(--mono);font-size:11px;letter-spacing:.5px;color:var(--d-mute);margin-bottom:30px}
.incl-card{border:1px solid var(--d-line);border-radius:6px;padding:10px 28px}
.incl-card .ih{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);padding:22px 0 18px}
.incl-row{display:flex;align-items:center;justify-content:space-between;padding:18px 0;border-top:1px solid var(--d-line)}
.incl-row .v{font-family:var(--display);font-weight:700;font-size:24px;color:var(--d-text)}
.incl-row .lbl{font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--d-mute)}

/* BRIEFING */
.briefing{text-align:center;max-width:660px;margin:0 auto}
.briefing .eyebrow{color:var(--accent)}
.briefing h2{font-size:40px;margin-bottom:18px;line-height:1.1}
.briefing p{font-size:16px;color:var(--ink-soft);max-width:560px;margin:0 auto 30px;line-height:1.7}
.capture{display:flex;gap:10px;max-width:470px;margin:0 auto 16px}
.capture input{flex:1;font-family:var(--body);font-size:15px;padding:14px 18px;border:1px solid var(--line-strong);border-radius:3px;background:var(--card);color:var(--ink)}
.capture input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.capture .btn{white-space:nowrap;width:auto}
.briefing .micro{font-family:var(--mono);font-size:11px;letter-spacing:.5px;color:var(--ink-mute)}

/* FINAL CTA */
.final-cta{background:var(--d-bg);position:relative;overflow:hidden;padding:104px 0;text-align:center}
.final-cta::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--d-bg2) 1px,transparent 1px),linear-gradient(90deg,var(--d-bg2) 1px,transparent 1px);background-size:40px 40px;opacity:.4}
.final-cta .inner{position:relative;max-width:760px;margin:0 auto;padding:0 var(--pad)}
.final-cta .eyebrow{color:var(--accent);margin-bottom:26px}
.final-cta h2{font-size:44px;line-height:1.14;color:var(--d-text);letter-spacing:-.03em;margin-bottom:22px}
.final-cta h2 .accent{color:var(--accent)}
.final-cta .fbody{font-size:16px;color:var(--d-mute);max-width:520px;margin:0 auto 34px;line-height:1.7}
.final-cta .cta-row{display:flex;gap:18px;align-items:center;justify-content:center;flex-wrap:wrap}
.final-cta .or{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:1.5px;color:var(--d-mute)}

/* FOOTER */
footer{background:var(--paper);border-top:1px solid var(--line);padding:60px 0 32px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.foot-brand .brand{font-size:20px;display:inline-block;margin-bottom:14px}
.foot-brand p{font-size:14px;color:var(--ink-mute);max-width:300px;line-height:1.6}
.foot-col h4{font-family:var(--mono);font-weight:700;font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-mute);margin-bottom:16px}
.foot-col a{display:block;font-size:14px;color:var(--ink-soft);padding:5px 0;transition:color .18s}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.foot-bottom span{font-family:var(--mono);font-size:11px;letter-spacing:.5px;color:var(--ink-mute)}

/* MOBILE */
@media(max-width:900px){
  :root{--pad:22px}
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(320px,84vw);background:var(--card);flex-direction:column;align-items:flex-start;gap:6px;padding:88px 26px;box-shadow:-20px 0 60px -30px rgba(26,29,36,.4);transform:translateX(100%);transition:transform .3s;z-index:99}
  .nav-links.open{transform:translateX(0)}
  .nav-links li{width:100%}
  .nav-links a,.nav-links .dd-trigger{font-size:17px;padding:8px 0}
  .dd-menu{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;border:0;border-left:1px solid var(--line);border-radius:0;margin:2px 0 8px 8px;padding:0 0 0 10px;min-width:0}
  .dd:hover .caret{transform:none}
  .hamb{display:flex;z-index:100}
  .hamb.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}.hamb.on span:nth-child(2){opacity:0}.hamb.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero h1{font-size:38px}
  .pub-grid.two,.pub-grid.three,.coll-grid{grid-template-columns:1fr}
  .premium .wrap{grid-template-columns:1fr;gap:40px;padding:52px var(--pad)}
  .premium h2,.center-head h2,.briefing h2,.final-cta h2{font-size:30px}
  .capture{flex-direction:column}.capture .btn{width:100%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand{grid-column:1/-1}
  section{padding:52px 0}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}.reveal{opacity:1;transform:none}}