/* kalshiapi.com — flat two-tone design system. Square corners, bold type, generous space. */
:root{
  --teal:#00C28A; --teal-d:#0a8a5f; --teal-t:#e4f8f1;
  --navy:#0c2b22; --ink:#0c2b22; --muted:#56685f; --line:#e6ebf0;
  --bg:#ffffff; --bg-alt:#f6f9fb; --bg-navy:#0c2b22;
  --maxw:1120px; --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Manrope,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);
  background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased;font-size:17px;overflow-x:hidden}
/* grid/flex items default to min-width:auto; a wide child (e.g. a <pre>) would blow out the track
   and force horizontal scroll. Let these tracks shrink, and keep code blocks inside their column. */
.hero .wrap>*,.feat>*,.teaser>*,.doc>*{min-width:0}
.code,.prose pre{max-width:100%}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:96px 0}
.alt{background:var(--bg-alt)}
.navy{background:var(--bg-navy);color:#fff}
.navy .muted{color:#9bb3a6}

/* type */
h1,h2,h3{line-height:1.1;letter-spacing:-.02em;font-weight:800;text-wrap:balance;overflow-wrap:break-word}
[id]{scroll-margin-top:84px}
h1{font-size:clamp(32px,6vw,62px)}
.hero h1{font-size:clamp(32px,5vw,54px)}
h2{font-size:clamp(28px,4.4vw,44px)}
h3{font-size:clamp(20px,2.4vw,26px);font-weight:700}
.lead{font-size:clamp(21px,2.4vw,24px);color:var(--muted);font-weight:500;max-width:640px;text-wrap:pretty}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-d)}
.muted{color:var(--muted)}
.center{text-align:center}.center .lead{margin-inline:auto}

/* buttons (square, flat) */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:16px;
  padding:14px 26px;border:2px solid var(--teal);background:var(--teal);color:var(--navy);cursor:pointer;
  transition:transform .15s var(--ease),background .15s var(--ease),color .15s var(--ease)}
.btn:hover{background:var(--teal-d);border-color:var(--teal-d);color:#fff;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn.teal{background:var(--teal);border-color:var(--teal);color:var(--navy)}
.btn.teal:hover{background:var(--teal-d);border-color:var(--teal-d);color:#fff}
.btn.dark{background:var(--navy);border-color:var(--navy);color:#fff}
.btn.dark:hover{background:#16463a;border-color:#16463a}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--teal);outline-offset:2px}
.btn.ghost{background:transparent;color:var(--navy)}
.btn.ghost:hover{background:var(--navy);color:#fff}
.navy .btn.ghost{color:#fff;border-color:#fff}.navy .btn.ghost:hover{background:#fff;color:var(--navy)}
.btnrow{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* nav */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo b{color:var(--teal-d)}
.nav nav{display:flex;align-items:center;gap:28px}
.nav nav a{font-weight:600;font-size:15px;color:var(--muted);transition:color .15s}
.nav nav a:hover{color:var(--navy)}
.nav .btn{padding:9px 18px;font-size:14px}
.navtoggle{display:none;background:none;border:0;cursor:pointer}

/* hero */
.hero{padding-top:72px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1 span{color:var(--teal-d)}
.code{margin-top:28px;background:var(--navy);color:#dfe9f0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:15px;line-height:1.75;padding:24px 26px;position:relative;overflow:auto;white-space:pre;border-radius:6px}
.code.codewrap{white-space:pre-wrap;overflow:visible;overflow-wrap:anywhere}
.code .k{color:var(--teal)}
.code .mask{color:#dfe9f0}
.copy{position:absolute;top:12px;right:12px;display:inline-flex;align-items:center;gap:6px;
  background:#163d30;color:#cfe;border:0;border-radius:6px;font-size:12px;font-weight:700;
  padding:8px 10px;cursor:pointer;font-family:inherit;line-height:1}
.copy svg{width:15px;height:15px;display:block;flex:0 0 auto}
.copy:hover,.copy.copied{background:var(--teal);color:var(--navy)}

/* animated SVG visualizations */
@keyframes vizblink{0%,100%{opacity:1}50%{opacity:.22}}
@keyframes vizdash{to{stroke-dashoffset:-220}}
@keyframes vizrise{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@keyframes vizgrowx{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes vizfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.viz .blink{animation:vizblink 1.5s ease-in-out infinite}
.viz .flow{stroke-dasharray:11 8;animation:vizdash 1.2s linear infinite}
.viz .rise{transform-box:fill-box;transform-origin:bottom;animation:vizrise .9s var(--ease) both}
.viz .growx{transform-box:fill-box;transform-origin:left;animation:vizgrowx 1.1s var(--ease) both}
.viz .float{transform-box:fill-box;transform-origin:center;animation:vizfloat 2.4s ease-in-out infinite}
@media(prefers-reduced-motion:reduce){
  .viz .blink,.viz .flow,.viz .rise,.viz .growx,.viz .float{animation:none}
}

/* stat band */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;text-align:center}
.stat .num{font-size:clamp(30px,4.4vw,48px);font-weight:800;color:var(--navy);letter-spacing:-.03em}
.navy .stat .num{color:var(--teal)}
.stat .lbl{font-size:14px;font-weight:600;color:var(--muted);margin-top:4px}

/* teaser histogram */
.teaser{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.bars{display:flex;align-items:flex-end;gap:18px;height:300px;border-bottom:2px solid var(--line);padding-top:10px}
.bar{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%}
.bar .val{font-weight:800;font-size:16px;margin-bottom:8px;color:var(--navy);white-space:nowrap}
.bar .col{width:100%;background:var(--teal);transform-origin:bottom;
  transition:transform 1.1s var(--ease)}
.js .bar .col{transform:scaleY(0)}
.js .bar.grow .col{transform:scaleY(1)}
.bar.blur .col{background:var(--navy)}
.bar.blur .val{filter:blur(7px);user-select:none;color:var(--muted)}
.bar .cap{font-size:13px;font-weight:600;color:var(--muted);margin-top:10px;text-align:center;position:relative}
.bar.blur .cap{filter:blur(4px)}
.blurgroup{flex:5;display:flex;align-items:flex-end;gap:18px;height:100%;position:relative}
.blurgroup .bar{height:100%}
.lockwrap{position:relative}
.lock{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}
.lock span{background:var(--navy);color:#fff;font-weight:700;font-size:14px;padding:10px 16px;
  display:inline-flex;gap:8px;align-items:center}

/* sports edge leaderboard */
.board{margin-top:36px;border-top:2px solid var(--ink)}
.brow{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.3fr .9fr;align-items:center;gap:12px;
  padding:16px 8px;border-bottom:1px solid var(--line)}
.brow.head{padding:11px 8px;font-size:13px;font-weight:700;color:var(--muted);border-bottom:2px solid var(--line)}
.brow span{font-variant-numeric:tabular-nums}
.brow .tm{font-weight:700;color:var(--ink)}
.edge{font-weight:800}
.edge.pos{color:var(--teal-d)}
.edge.neg{color:#c0392b}
.board .brow.blur{filter:blur(6px);user-select:none}
@media(max-width:640px){
  .brow{grid-template-columns:1.7fr 1fr 1.2fr .9fr;gap:8px;font-size:14px;padding:14px 4px}
  .col-lg{display:none}
}

/* plain-language fact list (leading number + sentence) */
.facts{margin:36px 0 8px;border-top:1px solid var(--line)}
.fact{display:flex;gap:22px;align-items:baseline;padding:22px 4px;border-bottom:1px solid var(--line)}
.fact .n{flex:0 0 auto;min-width:96px;color:var(--teal-d);font-weight:800;
  font-variant-numeric:tabular-nums;font-size:clamp(24px,3vw,32px);letter-spacing:-.02em}
.fact .say b{display:block;font-size:clamp(18px,1.9vw,21px);font-weight:800;color:var(--ink);line-height:1.3}
.fact .say p{margin-top:5px;color:var(--muted);font-size:15px;max-width:62ch}
@media(max-width:640px){
  .fact{gap:14px;padding:18px 2px}
  .fact .n{min-width:70px;font-size:24px}
}

/* feature rows */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feat.rev .art{order:2}
.feat .art{padding:10px}
.art svg.viz{width:100%;height:auto;display:block;border-radius:16px;border:1px solid var(--line);
  background:#fff;box-shadow:0 16px 40px rgba(12,43,34,.07);font-family:Manrope,system-ui,sans-serif}
.flist{margin-top:22px;display:grid;gap:18px}
.flist .item{display:flex;gap:14px;align-items:flex-start}
.flist .ic{flex:0 0 34px;height:34px;color:var(--teal-d)}
.flist .item b{font-size:18px;font-weight:700}
.flist .item p{color:var(--muted);font-size:15px;margin-top:2px}

/* 3-up */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:48px}
.card{background:transparent;border:0;padding:24px 18px}
.navy .card{background:#123a2e;border-color:#20503f}
.card .ic{width:40px;height:40px;color:var(--teal-d);margin-bottom:16px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}.navy .card p{color:#9bb3a6}

/* pricing */
.prices{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:48px;align-items:stretch}
.price{border:1px solid var(--line);padding:30px 26px;display:flex;flex-direction:column;background:#fff}
.price.feature{border:2px solid var(--teal)}
.price .tag{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--teal-d)}
.price .amt{font-size:40px;font-weight:800;margin:10px 0 2px;letter-spacing:-.03em}
.price .amt small{font-size:15px;font-weight:600;color:var(--muted)}
.price ul{list-style:none;margin:18px 0 24px;display:grid;gap:10px}
.price li{font-size:14.5px;color:var(--ink);padding-left:24px;position:relative}
.price li:before{content:"";position:absolute;left:0;top:7px;width:13px;height:9px;
  border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg)}
.price .btn{margin-top:auto;justify-content:center}
.price .sub{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}

/* faq */
.faq{max-width:820px;margin:40px auto 0}
.q{border-top:1px solid var(--line);padding:22px 0}
.q summary{font-weight:700;font-size:18px;cursor:pointer;list-style:none;display:flex;justify-content:space-between}
.q summary::-webkit-details-marker{display:none}
.q summary:after{content:"+";color:var(--teal-d);font-weight:800;font-size:24px;line-height:1}
.q[open] summary:after{content:"\2212"}
.q p{color:var(--muted);margin-top:12px;font-size:16px}

/* footer */
footer{background:var(--navy);color:#cdd9d2;padding:64px 0 40px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
footer h4{color:#fff;font-size:14px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
footer a{display:block;color:#9bb3a6;font-size:15px;padding:5px 0;transition:color .15s}
footer a:hover{color:var(--teal)}
footer .disc{margin-top:40px;border-top:1px solid #20503f;padding-top:24px;font-size:13px;color:#80978c}

/* scroll-in animation */
/* content is visible by default; only the JS-enhanced path hides-then-reveals (never ship blank) */
.reveal{transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal{opacity:0;transform:translateY(26px)}
.js .reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}
  .bar .col{transition:none;transform:none}}

/* docs / blog layout */
.doc{display:grid;grid-template-columns:240px 1fr;gap:48px;align-items:start;padding:48px 0 96px}
.doc aside{position:sticky;top:88px}
.doc aside a{display:block;color:var(--muted);font-size:14.5px;font-weight:600;padding:6px 0}
.doc aside a:hover,.doc aside a.on{color:var(--teal-d)}
.doc aside .grp{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--navy);
  font-weight:800;margin:22px 0 6px}
.prose{max-width:760px}
.prose h2{margin:42px 0 14px;font-size:30px}
.prose h3{margin:30px 0 10px}
.prose p{margin:12px 0;color:#33443d;text-wrap:pretty}
.prose ul{margin:12px 0 12px 22px;color:#33443d}.prose li{margin:6px 0}
.prose pre{background:var(--navy);color:#dfe9f0;padding:18px;overflow:auto;font-size:13.5px;
  font-family:ui-monospace,Menlo,Consolas,monospace;margin:16px 0}
.prose code{background:var(--teal-t);color:var(--teal-d);padding:2px 6px;font-size:14px;
  font-family:ui-monospace,Menlo,Consolas,monospace}
.prose pre code{background:none;color:inherit;padding:0}
.prose table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:var(--bg-alt);font-weight:700}
.tabs{display:flex;gap:6px;margin:18px 0}
.tabs button{border:1px solid var(--line);background:#fff;font-weight:700;font-size:14px;
  padding:9px 16px;cursor:pointer}
.tabs button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.callout{border:1px solid var(--teal);background:var(--teal-t);padding:16px 20px;margin:20px 0}
.callout b{color:var(--teal-d)}

/* responsive */
@media(max-width:880px){
  .hero .wrap,.teaser,.feat,.doc{grid-template-columns:1fr}
  .feat.rev .art{order:0}
  .hero .art,.feat .art{max-width:460px;margin:0 auto}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px 8px}
  .grid3,.prices{grid-template-columns:1fr}
  .doc aside{position:static}
  .nav nav{display:none}.nav nav.open{display:flex;position:absolute;top:64px;left:0;right:0;
    flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:16px 24px;gap:14px}
  .navtoggle{display:block}
  section{padding:64px 0}
}