/* Kepler Oates — site theme. Dark, grid-lined, mono labels. */
@font-face{font-family:UB;font-weight:600;font-display:swap;src:url(/assets/fonts/unbounded-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:UB;font-weight:800;font-display:swap;src:url(/assets/fonts/unbounded-latin-800-normal.woff2) format("woff2")}
@font-face{font-family:IS;font-weight:400;font-display:swap;src:url(/assets/fonts/instrument-sans-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:IS;font-weight:400;font-style:italic;font-display:swap;src:url(/assets/fonts/instrument-sans-latin-400-italic.woff2) format("woff2")}
@font-face{font-family:IS;font-weight:500;font-display:swap;src:url(/assets/fonts/instrument-sans-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:IS;font-weight:600;font-display:swap;src:url(/assets/fonts/instrument-sans-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:IS;font-weight:700;font-display:swap;src:url(/assets/fonts/instrument-sans-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:JM;font-weight:400;font-display:swap;src:url(/assets/fonts/jetbrains-mono-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:JM;font-weight:500;font-display:swap;src:url(/assets/fonts/jetbrains-mono-latin-500-normal.woff2) format("woff2")}

:root{
  --bg:#06070A;--bg2:#0B0D12;--panel:#10131A;--panel2:#161A23;
  --line:rgba(255,255,255,.09);--line2:rgba(255,255,255,.18);
  --tx:#ECEFF4;--mu:#98A2B3;--dim:#6B7587;
  --volt:#D2FF3F;--ice:#6FE7FF;--vio:#A294FF;--hot:#FF6A45;
  --disp:UB,"Arial Black",system-ui,sans-serif;--body:IS,system-ui,sans-serif;--mono:JM,ui-monospace,Menlo,Consolas,monospace;
  --mx:50%;--my:30%;
  /* legacy aliases so older page markup keeps working */
  --y:var(--volt);--k:var(--bg);--c:var(--panel);--g:var(--volt)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg);scroll-padding-top:84px}
body{margin:0;font:17px/1.65 var(--body);color:var(--tx);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(600px circle at var(--mx) var(--my),rgba(210,255,63,.07),transparent 60%),
    linear-gradient(var(--line) 1px,transparent 1px) 0 0/64px 64px,
    linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 20%,#000 20%,transparent 80%);mask-image:radial-gradient(ellipse at 50% 20%,#000 20%,transparent 80%);opacity:.55}
a{color:var(--volt);text-underline-offset:3px}
a:hover{color:#fff}
img{max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--ice);outline-offset:3px;border-radius:4px}
::selection{background:var(--volt);color:#000}
.skip{position:absolute;left:-9999px;top:8px;background:var(--volt);color:#000;padding:10px 14px;z-index:99;font:500 13px var(--mono)}
.skip:focus{left:8px}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:30;background:rgba(6,7,10,.72);-webkit-backdrop-filter:blur(14px) saturate(1.4);backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--line)}
.nav{max-width:1240px;margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:10px;font:600 13px var(--disp);letter-spacing:.06em;color:var(--tx);text-decoration:none;text-transform:uppercase;white-space:nowrap}
.brand i{display:block;width:22px;height:22px;position:relative}
.brand i::before,.brand i::after{content:"";position:absolute;width:11px;height:11px}
.brand i::before{left:0;top:0;background:var(--tx);box-shadow:0 11px 0 var(--tx),11px 11px 0 var(--tx)}
.brand i::after{right:-2px;top:-2px;background:var(--volt)}
.nav ul{list-style:none;margin:0 0 0 8px;padding:0;display:flex;gap:4px;align-items:center}
.nav a.l{display:block;padding:9px 13px;font:500 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--mu);text-decoration:none;border-radius:8px}
.nav a.l:hover{color:var(--tx);background:rgba(255,255,255,.05)}
.nav a.l[aria-current]{color:var(--volt)}
.kbtn{margin-left:auto;display:inline-flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line2);color:var(--mu);font:500 12px var(--mono);padding:8px 12px;border-radius:9px;cursor:pointer}
.kbtn:hover{color:var(--tx);border-color:var(--volt)}
.kbtn kbd{font:inherit;border:1px solid var(--line2);border-radius:5px;padding:1px 6px;color:var(--tx)}
.burger{display:none;background:none;border:1px solid var(--line2);color:var(--tx);width:44px;height:44px;border-radius:10px;cursor:pointer;margin-left:auto}
.burger span,.burger span::before,.burger span::after{display:block;width:18px;height:2px;background:currentColor;margin:0 auto;position:relative;content:""}
.burger span::before{position:absolute;top:-6px;left:0}.burger span::after{position:absolute;top:6px;left:0}
@media(max-width:1020px){
  .burger{display:block}
  .nav{flex-wrap:wrap}
  .nav nav{display:none;flex-basis:100%;order:5}
  .nav.open nav{display:block}
  .nav ul{flex-direction:column;align-items:stretch;margin:6px 0 10px}
  .nav a.l{padding:14px 12px;font-size:13px;border-top:1px solid var(--line)}
  .kbtn{margin-left:auto}.kbtn .t{display:none}
  .burger{margin-left:0}
}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--disp);font-weight:800;margin:0;letter-spacing:-.01em;line-height:1.08}
h1{font-size:clamp(34px,6.2vw,76px);margin:14px 0 22px}
h2{font-size:clamp(26px,3.6vw,44px);margin:0 0 16px}
h3{font-size:18px;font-weight:600;letter-spacing:0;line-height:1.3;margin:0 0 8px}
.k{display:inline-flex;align-items:center;gap:10px;font:500 12px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--volt)}
.k::before{content:"";width:8px;height:8px;background:var(--volt);box-shadow:0 0 12px var(--volt)}
.lead{font-size:clamp(18px,2vw,22px);color:#C9D0DC;max-width:36em;line-height:1.55}
p{margin:0 0 1em}
.mono{font-family:var(--mono)}
.mu{color:var(--mu)}
.grad{background:linear-gradient(95deg,var(--volt),var(--ice) 60%,var(--vio));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- layout ---------- */
.wrap{max-width:1240px;margin:0 auto;padding:0 22px}
section.s{padding:clamp(56px,8vw,104px) 0;position:relative}
section.s.alt{background:linear-gradient(180deg,transparent,rgba(255,255,255,.025) 12%,rgba(255,255,255,.025) 88%,transparent)}
.hero{padding:clamp(48px,7vw,96px) 0 clamp(40px,5vw,72px);position:relative}
.hero .wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.sec-head p{margin:0;max-width:34em;color:var(--mu)}
.prose{max-width:760px}
.prose p,.prose li{font-size:18px;color:#D3D9E3}
.prose h2{margin-top:52px;font-size:clamp(24px,3vw,34px)}
.prose h3{margin-top:30px}
.prose a{color:var(--volt)}
ul.ticks{list-style:none;padding:0}
ul.ticks li{position:relative;padding-left:26px;margin-bottom:9px}
ul.ticks li::before{content:"";position:absolute;left:2px;top:.72em;width:9px;height:9px;background:var(--volt);transform:rotate(45deg)}
.note{border:1px solid var(--line2);border-left:3px solid var(--volt);background:var(--panel);padding:18px 22px;font-size:16px;margin:28px 0;border-radius:4px 12px 12px 4px;color:#D3D9E3}
.sources p{font-size:15px;line-height:1.55;color:#C3CAD6}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--volt);color:#06070A;font:600 13px var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:15px 22px;text-decoration:none;border-radius:11px;margin:6px 10px 6px 0;border:1px solid var(--volt);cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -8px rgba(210,255,63,.55);color:#000}
.btn.alt{background:transparent;color:var(--tx);border-color:var(--line2)}
.btn.alt:hover{border-color:var(--volt);color:var(--volt);box-shadow:none}
.btn.sm{padding:10px 14px;font-size:11px}
.btn[disabled],.btn.off{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn .ar{transition:transform .15s}.btn:hover .ar{transform:translateX(4px)}

/* ---------- cards ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:16px}
.card{position:relative;display:block;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;color:var(--tx);text-decoration:none;overflow:hidden;transition:border-color .2s,transform .2s}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(260px circle at var(--cx,50%) var(--cy,0%),rgba(210,255,63,.12),transparent 70%);opacity:0;transition:opacity .25s;pointer-events:none}
a.card:hover,.card:hover{border-color:rgba(210,255,63,.45);transform:translateY(-3px);color:var(--tx)}
.card:hover::before{opacity:1}
.card .n{font:500 11px var(--mono);letter-spacing:.16em;color:var(--dim);margin-bottom:10px;text-transform:uppercase}
.card p{margin:8px 0 14px;font-size:15.5px;color:var(--mu);line-height:1.55}
.card .dl{font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--volt)}
.card .dl::after{content:" →"}
.tag{display:inline-block;font:500 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--line2);color:var(--mu);padding:3px 8px;border-radius:999px;margin:0 6px 6px 0}
.tag.v{color:var(--volt);border-color:rgba(210,255,63,.4)}
.tag.i{color:var(--ice);border-color:rgba(111,231,255,.4)}
.tag.p{color:var(--vio);border-color:rgba(162,148,255,.4)}

/* ---------- covers ---------- */
.cover{width:100%;height:auto;max-width:360px;justify-self:center;display:block;border-radius:6px;box-shadow:0 30px 70px -20px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.1),0 0 90px -20px rgba(210,255,63,.25)}
.tiltwrap{perspective:1100px;justify-self:center}
.tilt{transform-style:preserve-3d;transition:transform .25s ease-out;will-change:transform}
.tilt .cover{transform:translateZ(0)}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:34px}.cover{max-width:260px}.hero .tiltwrap,.hero>.wrap>img{order:-1}}

/* ---------- reveal ---------- */
.js .rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.js .rv{opacity:1;transform:none}html{scroll-behavior:auto}}

/* ---------- marquee ---------- */
.marq{border-block:1px solid var(--line);overflow:hidden;background:rgba(255,255,255,.02);padding:14px 0}
.marq-in{display:flex;gap:44px;width:max-content;animation:mq 38s linear infinite;font:500 12px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--mu)}
.marq-in span::before{content:"◆";color:var(--volt);margin-right:44px}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- forms ---------- */
input[type=text],input[type=email],input[type=search],textarea,select{font:16px var(--body);color:var(--tx);background:var(--bg2);border:1px solid var(--line2);border-radius:11px;padding:13px 14px;width:100%}
input::placeholder,textarea::placeholder{color:var(--dim)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--ice);outline-offset:1px}
.formrow{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.formrow input[type=email]{flex:1;min-width:230px;width:auto}
.consent{flex-basis:100%;font-size:14px;display:flex;gap:10px;align-items:flex-start;color:var(--mu)}
.consent input{margin-top:5px;accent-color:var(--volt)}
.status{font-size:15px;min-height:1.4em;margin:10px 0 0;color:var(--mu)}

/* ---------- footer ---------- */
footer.site{border-top:1px solid var(--line);margin-top:40px;padding:56px 0 36px;font:400 14px/1.7 var(--body);color:var(--mu);background:linear-gradient(180deg,transparent,rgba(255,255,255,.02))}
.fgrid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px}
.fgrid h4{font:500 11px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--tx);margin:0 0 12px}
.fgrid a{display:block;color:var(--mu);text-decoration:none;padding:3px 0}
.fgrid a:hover{color:var(--volt)}
.legal{border-top:1px solid var(--line);margin-top:36px;padding-top:22px;font-size:13px;color:var(--dim)}
.legal a{color:var(--mu)}
.disc{font-size:13.5px;color:var(--mu);border:1px dashed var(--line2);border-radius:12px;padding:12px 16px}
@media(max-width:760px){.fgrid{grid-template-columns:1fr 1fr}.fgrid>div:first-child{grid-column:1/-1}}

/* ---------- page tab strip (tools sections) ---------- */
nav.tt{border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.tt-in{max-width:1240px;margin:0 auto;padding:0 22px;display:flex;gap:6px;overflow-x:auto}
.tt-in a{padding:13px 16px;text-decoration:none;color:var(--mu);font:500 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;border-bottom:2px solid transparent}
.tt-in a small{display:block;font:400 10px var(--mono);letter-spacing:.06em;color:var(--dim);text-transform:none}
.tt-in a:hover{color:var(--tx)}
.tt-in a[aria-current]{color:var(--volt);border-bottom-color:var(--volt)}

/* ---------- command palette ---------- */
dialog.pal{border:1px solid var(--line2);background:var(--panel);color:var(--tx);border-radius:18px;padding:0;width:min(640px,92vw);margin:10vh auto auto;box-shadow:0 40px 120px rgba(0,0,0,.8)}
dialog.pal::backdrop{background:rgba(2,3,5,.7);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.pal input{border:0;border-bottom:1px solid var(--line);border-radius:18px 18px 0 0;background:transparent;padding:20px 22px;font-size:18px}
.pal input:focus{outline:none}
.pal ul{list-style:none;margin:0;padding:8px;max-height:52vh;overflow:auto}
.pal li a{display:flex;justify-content:space-between;gap:14px;padding:11px 14px;border-radius:10px;color:var(--tx);text-decoration:none}
.pal li a small{font:400 11px var(--mono);color:var(--dim);letter-spacing:.08em;text-transform:uppercase;white-space:nowrap}
.pal li a:hover,.pal li a.sel{background:rgba(210,255,63,.1)}
.pal .hint{padding:10px 18px;border-top:1px solid var(--line);font:400 11px var(--mono);color:var(--dim)}

@media print{header.site,footer.site,.btn,nav.tt,body::before{display:none!important}body{background:#fff;color:#000}}