/* Vesper — design system
   Two grounds: PAPER (regular session) and NIGHT (after the close).
   The document carries data-session="day|night"; every token flips. */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --paper:      #f2efe8;
  --paper-2:    #f7f5f1;
  --card:       #fffefb;
  --line:       #ddd6c7;
  --line-2:     #c6bda9;
  --ink:        #16151a;
  --dim:        #6a6558;
  --faint:      #9c9788;
  --ember:      #a8622c;
  --ember-soft: #f0e3d4;
  --good:       #3f6b4a;
  --bad:        #8c3b32;

  --display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --rail: 292px;
  --gut: 56px;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(22,21,26,.05), 0 12px 32px -12px rgba(22,21,26,.14);
  --tap: color .18s ease, background .18s ease, border-color .18s ease, opacity .18s ease;
}

html[data-session="night"] {
  --paper:      #131318;
  --paper-2:    #17171e;
  --card:       #1c1c24;
  --line:       #2b2b36;
  --line-2:     #3d3d4b;
  --ink:        #ece8e0;
  --dim:        #948e84;
  --faint:      #6b665e;
  --ember:      #d9954f;
  --ember-soft: #2a2118;
  --good:       #6fa87c;
  --bad:        #c9705f;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 40px -14px rgba(0,0,0,.6);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  transition: background .5s ease, color .5s ease;
}

a { color: inherit; }
img { max-width: 100%; }

.mono { font-family: var(--mono); font-size: 11px; letter-spacing: .09em; text-transform: uppercase; }
.num  { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------- shell ---------- */

.shell { display: flex; align-items: flex-start; min-height: 100vh; }

.rail {
  width: var(--rail);
  flex: 0 0 var(--rail);
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 38px 34px 26px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  background: var(--paper);
  transition: background .5s ease, border-color .5s ease;
}

.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand .mark {
  width: 26px; height: 26px; flex: 0 0 26px;
  border-radius: 7px;
  /* the mark carries its own bone ground, so it needs a hairline to sit
     on the night theme without reading as a floating white chip */
  box-shadow: 0 0 0 1px var(--line), 0 1px 3px rgba(22,21,26,.10);
  object-fit: cover;
  transition: box-shadow .5s ease, transform .18s cubic-bezier(.2,.8,.3,1);
}
.brand:hover .mark { transform: translateY(-1px); }
.brand b {
  font-family: var(--display);
  font-size: 27px;
  font-weight: 400;
  letter-spacing: -.01em;
  line-height: 1;
}
.brand-tag { color: var(--dim); font-size: 13.5px; line-height: 1.5; margin: 15px 0 0; max-width: 21ch; }

.nav { margin: 34px 0 0; display: flex; flex-direction: column; }
.nav a {
  display: flex; align-items: baseline; gap: 14px;
  padding: 10px 0;
  text-decoration: none;
  color: var(--dim);
  font-size: 14.5px;
  border-bottom: 1px solid var(--line);
  transition: var(--tap);
}
.nav a:first-child { border-top: 1px solid var(--line); }
.nav a .n { color: var(--faint); font-size: 10px; min-width: 16px; transition: var(--tap); }
.nav a:hover { color: var(--ink); }
.nav a:hover .n { color: var(--ember); }
.nav a.on { color: var(--ink); font-weight: 500; }
.nav a.on .n { color: var(--ember); }

.cta {
  margin-top: 26px;
  display: inline-flex; align-items: center; gap: 9px;
  align-self: flex-start;
  padding: 11px 19px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow);
  transition: transform .18s cubic-bezier(.2,.8,.3,1), opacity .18s ease;
}
.cta .arr { transition: transform .22s cubic-bezier(.2,.8,.3,1); }
.cta:hover { transform: translateY(-1px); }
.cta:hover .arr { transform: translateX(3px); }

.rail-foot { margin-top: auto; padding-top: 24px; }
.meta { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 6px 0; }
.meta span { color: var(--faint); font-family: var(--mono); font-size: 10px; letter-spacing: .09em; text-transform: uppercase; }
.meta b { font-family: var(--mono); font-size: 11.5px; font-weight: 500; font-variant-numeric: tabular-nums; }
.meta b.live { color: var(--good); }
.meta b.shut { color: var(--ember); }

.social { display: flex; gap: 16px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.social a { color: var(--faint); text-decoration: none; font-family: var(--mono); font-size: 10px; letter-spacing: .09em; text-transform: uppercase; transition: var(--tap); }
.social a:hover { color: var(--ember); }

/* ---------- main ---------- */

.main { flex: 1 1 auto; min-width: 0; padding: 0 var(--gut) 120px; }
.sec { max-width: 700px; padding: 74px 0 8px; }
.sec + .sec { border-top: 1px solid var(--line); }

.sec-head { display: flex; align-items: center; gap: 13px; color: var(--faint); margin-bottom: 26px; }
.sec-head span:first-child { color: var(--ember); }

h1, h2 {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -.017em;
  line-height: 1.06;
  margin: 0 0 22px;
}
h1 { font-size: clamp(38px, 5.4vw, 61px); }
h2 { font-size: clamp(31px, 4.2vw, 45px); }
h3 { font-size: 16.5px; font-weight: 600; letter-spacing: -.006em; margin: 0 0 10px; line-height: 1.4; }

.lede { font-size: 17.5px; line-height: 1.62; color: var(--ink); max-width: 60ch; margin: 0 0 8px; }
p { margin: 0 0 15px; color: var(--dim); max-width: 64ch; }
p strong { color: var(--ink); font-weight: 600; }

.item { display: grid; grid-template-columns: 108px 1fr; gap: 26px; padding: 26px 0; border-top: 1px solid var(--line); }
.item:first-of-type { border-top: none; }
.item-n { color: var(--faint); padding-top: 3px; }

em.pull {
  display: block;
  font-family: var(--display);
  font-style: italic;
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink);
  margin: 22px 0;
  padding-left: 20px;
  border-left: 2px solid var(--ember);
  max-width: 52ch;
}

/* ---------- stats ---------- */

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin: 34px 0 6px; }
.stats > div { background: var(--card); padding: 22px 20px; transition: background .5s ease; }
.stats b { display: block; font-family: var(--mono); font-size: 27px; font-weight: 500; letter-spacing: -.03em; margin-bottom: 7px; font-variant-numeric: tabular-nums; }
.stats span { color: var(--dim); font-size: 13px; line-height: 1.45; display: block; }

/* ---------- tables ---------- */

.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); margin: 22px 0; transition: background .5s ease; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th {
  text-align: left; padding: 12px 16px;
  font-family: var(--mono); font-size: 10px; letter-spacing: .09em; text-transform: uppercase;
  color: var(--faint); font-weight: 400;
  border-bottom: 1px solid var(--line); white-space: nowrap;
}
tbody td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background .16s ease; }
tbody tr:hover { background: var(--paper-2); }
td.r, th.r { text-align: right; }
td.sym { font-family: var(--mono); font-weight: 500; white-space: nowrap; }
td.n { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
td.muted { color: var(--dim); }
a.addr { font-family: var(--mono); font-size: 11.5px; color: var(--dim); text-decoration: none; border-bottom: 1px solid var(--line-2); transition: var(--tap); }
a.addr:hover { color: var(--ember); border-color: var(--ember); }

.ledger td:first-child { color: var(--dim); }
.ledger td:last-child { font-family: var(--mono); text-align: right; font-variant-numeric: tabular-nums; }
.ledger tr.total td { font-weight: 600; color: var(--ink); border-top: 1px solid var(--line-2); }
.pos { color: var(--good); }
.neg { color: var(--bad); }

.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-family: var(--mono); font-size: 9.5px; letter-spacing: .08em; text-transform: uppercase; border: 1px solid var(--line-2); color: var(--dim); }
.pill.core { border-color: var(--ember); color: var(--ember); }

/* ---------- code ---------- */

pre {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; overflow-x: auto; margin: 20px 0;
  font-family: var(--mono); font-size: 12.5px; line-height: 1.72; color: var(--ink);
  transition: background .5s ease;
}
pre .c { color: var(--faint); }
pre .p { color: var(--ember); }
code { font-family: var(--mono); font-size: .92em; background: var(--ember-soft); padding: 1.5px 5px; border-radius: 4px; transition: background .5s ease; }
pre code { background: none; padding: 0; }

/* ---------- faq ---------- */

.qa { border-top: 1px solid var(--line); padding: 22px 0; }
.qa h3 { font-family: var(--display); font-size: 22px; font-weight: 400; letter-spacing: -.01em; margin-bottom: 9px; }

/* ---------- desk ---------- */

.status-line { display: flex; align-items: center; gap: 11px; margin: 0 0 26px; color: var(--dim); font-size: 15.5px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); flex: 0 0 8px; }
.dot.shut { background: var(--ember); }
.dot.live { animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .45; transform: scale(.85); } }

.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 22px 0 0; align-items: center; }
.filters button {
  font-family: var(--mono); font-size: 10px; letter-spacing: .09em; text-transform: uppercase;
  padding: 7px 13px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line-2); background: transparent; color: var(--dim);
  transition: var(--tap);
}
.filters button:hover { color: var(--ink); border-color: var(--ink); }
.filters button.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.filters input {
  flex: 1 1 150px; min-width: 130px;
  font-family: var(--mono); font-size: 12px;
  padding: 7px 13px; border-radius: 999px;
  border: 1px solid var(--line-2); background: transparent; color: var(--ink);
  outline: none; transition: var(--tap);
}
.filters input:focus { border-color: var(--ember); }
.filters input::placeholder { color: var(--faint); }

.tick { display: inline-flex; align-items: center; gap: 8px; }
.tick img { width: 17px; height: 17px; border-radius: 50%; flex: 0 0 17px; background: var(--paper-2); }

.foot { max-width: 700px; padding: 34px 0 0; border-top: 1px solid var(--line); color: var(--faint); font-size: 12.5px; }
.foot p { color: var(--faint); font-size: 12.5px; max-width: 68ch; }

/* ---------- theme switch ---------- */

.tswitch {
  position: fixed; right: 22px; bottom: 22px; z-index: 40;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 15px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line-2); background: var(--card); color: var(--dim);
  font-family: var(--mono); font-size: 10px; letter-spacing: .09em; text-transform: uppercase;
  box-shadow: var(--shadow); transition: var(--tap);
}
.tswitch:hover { color: var(--ink); border-color: var(--ink); }

/* ---------- reveal ---------- */

/* Content is visible by default. Only a document that has run our JS —
   and can therefore animate — is allowed to hide it. No JS, no blank page. */
.rv { opacity: 1; }
html.js .rv { opacity: 0; transform: translateY(9px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.8,.3,1); }
html.js .rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .rv { opacity: 1; transform: none; transition: none; }
  .dot.live { animation: none; }
  * { transition-duration: .01ms !important; }
}

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  :root { --gut: 30px; }
  .shell { display: block; }
  .rail {
    width: auto; flex: none; position: static; height: auto;
    border-right: none; border-bottom: 1px solid var(--line);
    padding: 26px var(--gut) 22px;
  }
  .brand-tag { display: none; }
  .cta { margin-top: 16px; padding: 9px 16px; font-size: 13.5px; }
  .nav {
    margin-top: 18px;
    display: flex; flex-direction: row; flex-wrap: nowrap;
    gap: 0 18px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a {
    flex: 0 0 auto;
    border: none; padding: 12px 0;
    white-space: nowrap; gap: 7px; font-size: 14px;
  }
  .nav a:first-child { border-top: none; }
  .rail-foot { margin-top: 14px; padding-top: 0; }
  .rail-foot .meta { display: none; }
  .rail-foot .meta:nth-of-type(1), .rail-foot .meta:nth-of-type(2) { display: inline-flex; margin-right: 20px; }
  .meta { padding: 2px 0; }
  .social { margin-top: 12px; padding-top: 12px; }
  .main { padding-top: 0; }
  .sec { padding-top: 48px; }
  .item { grid-template-columns: 1fr; gap: 9px; }
  .item-n { padding-top: 0; }
  .stats { grid-template-columns: 1fr; }
  .brand-tag { max-width: none; }
}
@media (max-width: 560px) {
  .nav { grid-template-columns: 1fr; }
  h1 { font-size: 34px; }
  .lede { font-size: 16px; }
  .tswitch { right: 14px; bottom: 14px; }
}

/* ---------- skip link ---------- */

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  padding: 11px 18px; border-radius: 0 0 var(--radius) 0;
  background: var(--ink); color: var(--paper);
  font-size: 14px; font-weight: 500; text-decoration: none;
}
.skip:focus { left: 0; }

/* A visible focus ring is not decoration on a page this quiet. */
a:focus-visible, button:focus-visible, input:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
  border-radius: 3px;
}
.main:focus { outline: none; }