/* Starling. Night sky, plumage navy, one yellow beak. Reticle corners on everything that can be pressed or read as a card. */
:root {
  --night: #0b1020;
  --deep: #070b17;
  --ink2: #101830;
  --ink3: #172244;
  --line: rgba(243, 235, 216, 0.16);
  --line2: rgba(243, 235, 216, 0.3);
  --cream: #f3ebd8;
  --mute: #9aa6c4;
  --dim: #6c7799;
  --beak: #f2d04a;
  --teal: #2bc4a6;
  --mag: #c94bbe;
  --loss: #ff7b86;
  --ok: #43d6b4;
  --font-d: 'Handjet', 'Onest', ui-monospace, monospace;
  --font-b: 'Onest', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-m: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}
@media (prefers-color-scheme: light) { :root { color-scheme: dark; } }
* { box-sizing: border-box; }
html { background: var(--night); color: var(--cream); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font-b); font-size: 17px; line-height: 1.62; background: var(--night); color: var(--cream); overflow-x: hidden; }
img { max-width: 100%; }
a { color: inherit; }
::selection { background: var(--beak); color: var(--night); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--beak); color: var(--night); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; }
.wrap { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.muted { color: var(--mute); }
.dim { color: var(--dim); }
.mono { font-family: var(--font-m); }
.pix { image-rendering: pixelated; }

/* ------------------------------------------------------------ the wire (navigation) */
.wire { position: fixed; inset: 0 0 auto 0; z-index: 60; height: 88px; display: flex; align-items: flex-start; gap: 18px; padding: 8px clamp(14px, 3vw, 36px) 0; transition: background .3s, backdrop-filter .3s; background: linear-gradient(to bottom, rgba(11, 16, 32, .78), rgba(11, 16, 32, 0)); }
.wire.solid { background: rgba(11, 16, 32, .9); backdrop-filter: blur(8px); }
.wire::after { content: ''; position: absolute; left: 0; right: 0; top: 46px; height: 1px; background: linear-gradient(90deg, transparent 0, rgba(243, 235, 216, .38) 4%, rgba(243, 235, 216, .38) 96%, transparent 100%); pointer-events: none; }
.wire .brand, .foot .brand { display: flex; flex-direction: column; align-items: center; text-decoration: none; margin-right: auto; }
.wire .brand img, .perch img { display: block; width: 32px; height: 38px; image-rendering: pixelated; position: relative; z-index: 1; }
.wire .brand b { font-family: var(--font-d); font-weight: 800; font-size: 25px; line-height: 1; letter-spacing: .02em; margin-top: 8px; text-transform: lowercase; }
.perches { display: flex; gap: clamp(8px, 2.6vw, 38px); }
.perch { display: flex; flex-direction: column; align-items: center; text-decoration: none; min-width: 52px; }
.perch span { margin-top: 8px; font: 500 12px/1 var(--font-m); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); transition: color .2s; }
.perch img.flip { transform: scaleX(-1); }
.perch:hover span, .perch.on span { color: var(--beak); }
.perch:hover img { animation: hop .5s steps(4) 1; }
.perch.on img { animation: sing 2.4s steps(1) infinite; }
.perch.on img.flip { animation-name: singf; }
@keyframes hop { 0% { transform: translateY(0); } 40% { transform: translateY(-9px); } 100% { transform: translateY(0); } }
@keyframes sing { 0%, 70% { transform: translateY(0) rotate(0); } 74% { transform: translateY(-3px) rotate(-3deg); } 80% { transform: translateY(0) rotate(0); } 86% { transform: translateY(-3px) rotate(-3deg); } 92%, 100% { transform: translateY(0) rotate(0); } }
@keyframes singf { 0%, 70% { transform: scaleX(-1) translateY(0) rotate(0); } 74% { transform: scaleX(-1) translateY(-3px) rotate(-3deg); } 80% { transform: scaleX(-1) translateY(0) rotate(0); } 86% { transform: scaleX(-1) translateY(-3px) rotate(-3deg); } 92%, 100% { transform: scaleX(-1) translateY(0) rotate(0); } }
.wire-end { display: flex; gap: 6px; margin-left: auto; padding-top: 8px; }
.wire-end .icon { width: 34px; height: 34px; display: grid; place-items: center; color: var(--mute); }
.wire-end .icon:hover { color: var(--beak); }
.wire-end svg { width: 17px; height: 17px; }
.wire-end:empty { display: none; }
@media (max-width: 760px) {
  .wire { gap: 6px; padding-inline: 10px; height: 82px; }
  .wire .brand b { display: none; }
  .wire .brand img { margin-bottom: 0; }
  .perches { gap: 2px; margin-left: auto; }
  .perch { min-width: 46px; }
  .perch span { font-size: 10px; }
  .wire-end { display: none; }
}

/* ------------------------------------------------------------ reticle corners: the one shape family */
.reticle { position: relative; }
.reticle::before { content: ''; position: absolute; inset: -5px; pointer-events: none; --c: var(--cream); --l: 11px; --t: 2px;
  background:
    linear-gradient(var(--c), var(--c)) 0 0 / var(--l) var(--t) no-repeat, linear-gradient(var(--c), var(--c)) 0 0 / var(--t) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) 100% 0 / var(--l) var(--t) no-repeat, linear-gradient(var(--c), var(--c)) 100% 0 / var(--t) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) 0 100% / var(--l) var(--t) no-repeat, linear-gradient(var(--c), var(--c)) 0 100% / var(--t) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) 100% 100% / var(--l) var(--t) no-repeat, linear-gradient(var(--c), var(--c)) 100% 100% / var(--t) var(--l) no-repeat;
  transition: inset .22s steps(4); opacity: .85; }
a.reticle:hover::before, button.reticle:hover::before, .card.reticle:hover::before { inset: -9px; --c: var(--beak); opacity: 1; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 24px; font: 600 15px/1 var(--font-b); letter-spacing: .01em; color: var(--cream); background: rgba(243, 235, 216, .04); border: 1px solid var(--line2); border-radius: 0; text-decoration: none; cursor: pointer; transition: background .2s, color .2s, border-color .2s; margin: 6px; }
.btn:hover { background: rgba(243, 235, 216, .1); border-color: var(--cream); }
.btn.primary { background: var(--cream); color: var(--night); border-color: var(--cream); }
.btn.primary:hover { background: var(--beak); border-color: var(--beak); }
.btn.sm { padding: 9px 16px; font-size: 13px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.btn svg { width: 16px; height: 16px; }
.card { position: relative; background: linear-gradient(180deg, rgba(23, 34, 68, .55), rgba(16, 24, 48, .55)); border: 1px solid var(--line); padding: 26px; margin: 5px; }
.card h3 { margin: 0 0 8px; font: 600 19px/1.25 var(--font-b); }
.card p { margin: 0; color: var(--mute); }
.tag { display: inline-block; font: 500 11px/1 var(--font-m); letter-spacing: .08em; text-transform: uppercase; color: var(--beak); border: 1px solid rgba(242, 208, 74, .45); padding: 5px 8px; }
.eyebrow { font: 500 12px/1 var(--font-m); letter-spacing: .14em; text-transform: uppercase; color: var(--beak); display: block; margin-bottom: 14px; }

/* ------------------------------------------------------------ type */
h1, h2 { font-family: var(--font-d); font-weight: 800; letter-spacing: .005em; margin: 0; line-height: .95; }
h1 { font-size: clamp(60px, 11vw, 160px); }
h2 { font-size: clamp(42px, 6vw, 78px); }
h3 { font-family: var(--font-b); }
.lede { font-size: clamp(18px, 2.1vw, 22px); color: #cdd3e6; max-width: 36em; }
.hl { color: var(--beak); }
.tl { color: var(--teal); }

/* ------------------------------------------------------------ hero: the real flock */
.hero { position: relative; min-height: 100svh; display: grid; align-items: end; overflow: hidden; background: var(--night) url(../img/sky.png) center bottom / cover no-repeat; }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-in { position: relative; z-index: 2; padding: 120px 0 56px; pointer-events: none; }
.hero-in > * { pointer-events: auto; }
.hero h1 { text-shadow: 0 2px 0 rgba(0, 0, 0, .35); }
.hero h1 em { font-style: normal; color: var(--beak); }
.hero .lede { margin: 22px 0 8px; }
.hero-ctas { margin: 18px -6px 0; }
.hero-hud { position: relative; z-index: 2; border-top: 1px solid var(--line); background: linear-gradient(to bottom, rgba(7, 11, 23, .0), rgba(7, 11, 23, .82)); }
.hud { display: grid; grid-template-columns: repeat(4, 1fr); }
.hud > div { padding: 16px 18px; border-left: 1px solid var(--line); }
.hud > div:first-child { border-left: 0; padding-left: 0; }
.hud b { display: block; font: 800 36px/1 var(--font-d); color: var(--cream); }
.hud span { font: 500 11px/1.3 var(--font-m); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); }
.hero-state { position: absolute; left: clamp(20px, 6vw, 80px); top: 112px; z-index: 3; font: 500 12px/1.5 var(--font-m); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); text-align: left; pointer-events: none; text-shadow: 0 1px 0 rgba(0,0,0,.6); }
.hero-state b { color: var(--beak); font-weight: 600; }
@media (max-width: 760px) { .hud { grid-template-columns: repeat(2, 1fr); } .hud > div:nth-child(3) { border-left: 0; padding-left: 0; } .hero-state { display: none; } }

/* ------------------------------------------------------------ sections */
.sec { position: relative; padding: clamp(80px, 11vw, 150px) 0; }
.sec.alt { background: linear-gradient(180deg, var(--night), var(--deep) 40%, var(--night)); }
.sec-head { max-width: 760px; margin-bottom: 52px; }
.sec-head h2 { margin-bottom: 20px; }
.rule { position: relative; height: 54px; margin-bottom: -1px; }
.rule::after { content: ''; position: absolute; left: 0; right: 0; bottom: 14px; height: 1px; background: var(--line2); }
.rule img { position: absolute; bottom: 15px; width: 32px; height: 38px; image-rendering: pixelated; }
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(20px, 4vw, 56px); align-items: center; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.grid4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 900px) { .grid2 { grid-template-columns: minmax(0, 1fr); } .grid3 { grid-template-columns: minmax(0, 1fr); } .grid4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .grid4 { grid-template-columns: minmax(0, 1fr); } .panel, .card { padding: 18px; } }
.stat { padding: 8px 0; }
.stat b { display: block; font: 800 clamp(52px, 7vw, 92px)/.9 var(--font-d); color: var(--cream); }
.stat b small { font-size: .5em; color: var(--mute); }
.stat p { margin: 8px 0 0; color: var(--mute); font-size: 15px; }
.panel { background: rgba(16, 24, 48, .72); border: 1px solid var(--line); padding: 22px; }
.panel h4 { margin: 0 0 12px; font: 500 12px/1 var(--font-m); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
canvas.chart { width: 100%; display: block; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font: 500 12px/1.2 var(--font-m); color: var(--mute); margin-top: 12px; }
.legend i { display: inline-block; width: 10px; height: 10px; margin-right: 6px; vertical-align: -1px; }
.note { font-size: 14px; color: var(--mute); }
.fine { font-size: 13px; color: var(--dim); line-height: 1.6; }

/* ------------------------------------------------------------ controls */
label.ctl { display: block; margin: 0 0 18px; }
label.ctl > span { display: flex; justify-content: space-between; font: 500 12px/1 var(--font-m); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); margin-bottom: 10px; }
label.ctl > span b { color: var(--beak); font-weight: 600; }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; margin: 0; }
input[type=range]::-webkit-slider-runnable-track { height: 2px; background: var(--line2); }
input[type=range]::-moz-range-track { height: 2px; background: var(--line2); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; margin-top: -6px; background: var(--beak); transform: rotate(45deg); border: 0; }
input[type=range]::-moz-range-thumb { width: 12px; height: 12px; background: var(--beak); transform: rotate(45deg); border: 0; border-radius: 0; }
input[type=text], input[type=number], input[type=datetime-local], textarea, select { width: 100%; background: rgba(7, 11, 23, .7); color: var(--cream); border: 1px solid var(--line2); border-radius: 0; padding: 11px 12px; font: 500 14px/1.3 var(--font-m); }
textarea { min-height: 84px; resize: vertical; }
input:focus, textarea:focus, select:focus, .btn:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--beak); outline-offset: 2px; }
.seg { display: inline-flex; border: 1px solid var(--line2); }
.seg button { background: transparent; color: var(--mute); border: 0; padding: 9px 14px; font: 500 12px/1 var(--font-m); letter-spacing: .06em; text-transform: uppercase; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--line2); }
.seg button[aria-pressed=true] { background: var(--cream); color: var(--night); }

/* ------------------------------------------------------------ tables */
.tblwrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font: 500 14px/1.4 var(--font-m); }
.tbl th { text-align: left; font-weight: 500; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--mute); padding: 10px 12px; border-bottom: 1px solid var(--line2); white-space: nowrap; }
.tbl td { padding: 11px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tbl td.n, .tbl th.n { text-align: right; }
.tbl tr.hi td { background: rgba(242, 208, 74, .08); }
.good { color: var(--ok); } .bad { color: var(--loss); } .warn { color: var(--beak); }

/* ------------------------------------------------------------ code, callouts */
pre { background: var(--deep); border: 1px solid var(--line); padding: 16px 18px; overflow-x: auto; font: 400 13.5px/1.6 var(--font-m); margin: 18px 0; position: relative; }
code { font-family: var(--font-m); font-size: .9em; background: rgba(243, 235, 216, .08); padding: 1px 6px; }
pre code { background: none; padding: 0; font-size: inherit; }
.callout { border-left: 3px solid var(--beak); background: rgba(242, 208, 74, .07); padding: 14px 18px; margin: 22px 0; font-size: 15.5px; }
.callout b { display: block; color: var(--beak); font: 600 12px/1 var(--font-m); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; }
.callout.warn { border-color: var(--loss); background: rgba(255, 123, 134, .07); } .callout.warn b { color: var(--loss); }
.copy { position: absolute; top: 8px; right: 8px; font: 500 11px/1 var(--font-m); padding: 6px 9px; background: var(--ink3); color: var(--mute); border: 1px solid var(--line); cursor: pointer; }
.copy:hover { color: var(--beak); }

/* ------------------------------------------------------------ docs */
.docs { display: grid; grid-template-columns: 240px minmax(0, 760px) 220px; gap: 48px; width: min(1320px, calc(100% - 40px)); margin: 0 auto; padding: 130px 0 90px; }
.docs aside, .docs .toc { position: sticky; top: 108px; align-self: start; max-height: calc(100vh - 130px); overflow-y: auto; font-size: 14.5px; }
.docs aside h4, .docs .toc h4 { font: 500 11px/1 var(--font-m); letter-spacing: .12em; text-transform: uppercase; color: var(--beak); margin: 22px 0 8px; }
.docs aside h4:first-child, .docs .toc h4:first-child { margin-top: 0; }
.docs aside a, .docs .toc a { display: block; padding: 5px 0 5px 12px; color: var(--mute); text-decoration: none; border-left: 1px solid var(--line); }
.docs aside a:hover, .docs .toc a:hover { color: var(--cream); border-color: var(--cream); }
.docs aside a[aria-current=page] { color: var(--beak); border-color: var(--beak); }
.doc h1 { font-size: clamp(46px, 6vw, 78px); margin: 0 0 22px; }
.doc h2 { font-size: clamp(34px, 4vw, 48px); margin: 56px 0 14px; scroll-margin-top: 110px; }
.doc h3 { font-size: 20px; margin: 30px 0 8px; }
.doc p, .doc li { color: #d3d8e8; }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc a { color: var(--beak); }
.doc table.tbl { margin: 18px 0; }
.pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 64px; padding-top: 22px; border-top: 1px solid var(--line); }
.pager a { text-decoration: none; color: var(--mute); font-weight: 600; }
.pager a:hover { color: var(--beak); }
@media (max-width: 1100px) { .docs { grid-template-columns: 220px minmax(0, 1fr); } .docs .toc { display: none; } }
.doc { min-width: 0; }
.doc dd { margin: 0 0 14px; color: #d3d8e8; }
@media (max-width: 760px) { .docs { grid-template-columns: minmax(0, 1fr); padding-top: 110px; } .doc table.tbl { display: block; overflow-x: auto; max-width: 100%; } .doc pre { max-width: 100%; } .docs aside { position: static; max-height: none; border-bottom: 1px solid var(--line); padding-bottom: 16px; } }

/* ------------------------------------------------------------ footer */
.foot { border-top: 1px solid var(--line); padding: 64px 0 40px; background: var(--deep); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; }
.foot .brand { align-items: flex-start; margin: 0; }
.foot .brand b { font-family: var(--font-d); font-weight: 800; font-size: 25px; margin-top: 6px; }
.foot h4 { font: 500 11px/1 var(--font-m); letter-spacing: .12em; text-transform: uppercase; color: var(--beak); margin: 0 0 14px; }
.foot a { display: block; color: var(--mute); text-decoration: none; padding: 4px 0; }
.foot a:hover { color: var(--cream); }
.foot .fine { margin-top: 44px; }
@media (max-width: 800px) { .foot-grid { grid-template-columns: 1fr 1fr; } }

/* ------------------------------------------------------------ page chrome for inner pages */
.page { padding: 140px 0 80px; }
.page-head { max-width: 780px; margin-bottom: 44px; }
.page-head h1 { font-size: clamp(54px, 8vw, 112px); margin-bottom: 18px; }

/* ------------------------------------------------------------ reveal on scroll */
.rv { opacity: 0; transform: translateY(18px); transition: opacity .6s, transform .6s; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rv { opacity: 1; transform: none; transition: none; }
  .perch:hover img, .perch.on img { animation: none; }
  .reticle::before { transition: none; }
}

/* ------------------------------------------------------------ the paper band: one light section for rhythm */
.sec.paper { background: var(--cream); color: var(--night); }
.paper .eyebrow { color: #8a6a00; }
.paper h2, .paper h3, .paper b { color: var(--night); }
.paper .lede, .paper p { color: #2b3350; }
.paper .muted, .paper .note { color: #4a5578; }
.paper .panel { background: #fff9ea; border-color: rgba(11, 16, 32, .18); }
.paper .panel h4 { color: #4a5578; }
.paper .tbl th { color: #4a5578; border-bottom-color: rgba(11, 16, 32, .3); }
.paper .tbl td { border-bottom-color: rgba(11, 16, 32, .12); color: var(--night); }
.paper .good { color: #0b7a63; } .paper .bad { color: #b3263a; }
.paper .stat b { color: var(--night); }
.paper .stat p { color: #4a5578; }
.paper a { color: #7a5a00; }

input[type=datetime-local] { color-scheme: dark; }

[hidden] { display: none !important; }