:root {
  color-scheme: light;
  --ink:      #16241E;
  --ink-2:    #3D4F47;
  --muted:    #6B7D74;
  --paper:    #FBFCFA;
  --card:     #FFFFFF;
  --line:     #DBE4DE;
  --line-2:   #EDF2EE;
  --accent:   #2F7D5C;
  --accent-d: #235F46;
  --amber:    #B5741C;
  --amber-bg: #FBF1E1;
  --stop:     #B03A31;
  --z-green:  #6FA84A;
  --z-yellow: #D9B43A;
  --z-orange: #DE8A2C;
  --on-accent: #FFFFFF;
  --shadow:   0 1px 2px rgba(22,36,30,.05), 0 8px 24px -12px rgba(22,36,30,.18);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --ink: #E8EFE9; --ink-2: #B9C9C0; --muted: #8DA096;
    --paper: #101815; --card: #182320; --line: #2C3A34; --line-2: #212E29;
    --accent: #61B98D; --accent-d: #7FCBA2; --amber: #E0A44F; --amber-bg: #2E2317;
    --stop: #E08076; --on-accent: #0E1A15;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px -12px rgba(0,0,0,.6);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #E8EFE9; --ink-2: #B9C9C0; --muted: #8DA096;
  --paper: #101815; --card: #182320; --line: #2C3A34; --line-2: #212E29;
  --accent: #61B98D; --accent-d: #7FCBA2; --amber: #E0A44F; --amber-bg: #2E2317;
  --stop: #E08076; --on-accent: #0E1A15;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px -12px 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: 400 15px/1.55 "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3 { font-family: "Source Serif 4", Georgia, serif; text-wrap: balance; margin: 0; }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; font-variant-numeric: tabular-nums; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 10px; z-index: 50; background: var(--card); padding: 8px 12px; }

/* ---- chrome ---- */
header.site {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.bar { max-width: 1060px; margin: 0 auto; padding: 12px 16px;
       display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.logo { display: flex; align-items: baseline; gap: 8px; text-decoration: none; color: var(--ink); }
.logo b { font-family: "Source Serif 4", Georgia, serif; font-size: 20px;
          font-weight: 700; letter-spacing: -.01em; }
.logo span { color: var(--muted); font-size: 12px; }
nav.top { margin-left: auto; display: flex; gap: 18px; align-items: center; font-size: 14px; }
nav.top a { color: var(--ink-2); text-decoration: none; font-weight: 500; }
nav.top a:hover { color: var(--accent); }
nav.top a.cta { color: var(--on-accent); background: var(--accent); padding: 7px 13px; border-radius: 6px; }
nav.top a.cta:hover { background: var(--accent-d); color: var(--on-accent); }
@media (max-width: 520px) { nav.top a.hide-sm { display: none; } .bar .logo span { display: none; } nav.top { gap: 12px; } }
.demo-chip {
  margin-left: auto; font-size: 11px; font-weight: 600; letter-spacing: .07em;
  text-transform: uppercase; color: var(--amber);
  background: var(--amber-bg); border: 1px solid color-mix(in srgb, var(--amber) 35%, transparent);
  padding: 4px 9px; border-radius: 3px;
}

main { max-width: 1060px; margin: 0 auto; padding-inline: 16px; padding-block: 34px 72px; }
@media (min-width: 760px) { main { padding-inline: 20px; } .bar { padding-inline: 20px; } }
section[hidden] { display: none !important; }

.lede { max-width: 62ch; }
.lede h1 { font-size: clamp(28px, 4.4vw, 44px); line-height: 1.12; letter-spacing: -.015em; }
.lede p { color: var(--ink-2); font-size: 17px; margin: 14px 0 0; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
           color: var(--accent); margin-bottom: 12px; }

.grid { display: grid; gap: 18px; margin-top: 30px; }
@media (min-width: 760px) {
  .grid.two { grid-template-columns: 1.15fr .85fr; align-items: start; }
  .grid.three { grid-template-columns: repeat(3, 1fr); }
}

.card { background: var(--card); border: 1px solid var(--line);
        border-radius: 8px; padding: 22px; min-width: 0; }
.card.raise { box-shadow: var(--shadow); }
.card h2 { font-size: 19px; letter-spacing: -.01em; }
.card h3 { font-size: 15px; font-family: "IBM Plex Sans", sans-serif; font-weight: 600; }
.card p { color: var(--ink-2); font-size: 14px; margin: 8px 0 0; }
.num { font: 600 12px/1 "IBM Plex Mono", monospace; color: var(--accent); margin-bottom: 10px; display: block; }

.band { margin-top: 64px; }
.band > h2 { font-size: clamp(22px, 3vw, 28px); letter-spacing: -.01em; }
.band > p.sub { color: var(--ink-2); max-width: 62ch; margin: 8px 0 0; }

label { display: block; font-size: 12px; font-weight: 600; letter-spacing: .04em;
        text-transform: uppercase; color: var(--muted); margin-bottom: 7px; }
label.check { text-transform: none; letter-spacing: 0; font-weight: 400; font-size: 13.5px;
              color: var(--ink-2); display: flex; gap: 10px; align-items: flex-start; }
label.check input { margin-top: 3px; accent-color: var(--accent); }
input[type=text], input[type=email], select {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--paper); color: var(--ink);
  font: 400 16px/1.3 "IBM Plex Sans", sans-serif;
}
input.mono-in { font-family: "IBM Plex Mono", monospace; font-weight: 500; letter-spacing: .01em; }
input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.field { margin-top: 16px; }
.row2 { display: grid; gap: 0 14px; }
@media (min-width: 560px) { .row2 { grid-template-columns: 1fr 1fr; } }
.hint { font-size: 12.5px; color: var(--muted); margin-top: 8px; }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.titles { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.tag { font: 500 12.5px/1 "IBM Plex Mono", monospace; background: var(--line-2);
       border: 1px solid var(--line); color: var(--ink-2);
       padding: 6px 9px; border-radius: 4px; display: flex; align-items: center; gap: 7px; }
.tag button { all: unset; cursor: pointer; color: var(--muted); font-size: 14px; line-height: 1; }
.tag button:hover, .tag button:focus-visible { color: var(--stop); }

.go {
  all: unset; box-sizing: border-box; cursor: pointer; display: inline-flex; align-items: center; gap: 9px;
  background: var(--accent); color: var(--on-accent); font-weight: 600; font-size: 15px;
  padding: 12px 20px; border-radius: 6px; margin-top: 20px; text-decoration: none;
}
.go:hover { background: var(--accent-d); color: var(--on-accent); }
.go:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.go[disabled] { opacity: .45; cursor: not-allowed; }
.go.alt { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.go.alt:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--accent); }
.ghost { all: unset; cursor: pointer; color: var(--accent); font-weight: 600;
         font-size: 14px; padding: 6px 2px; }
.ghost:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.actions { display: flex; flex-wrap: wrap; gap: 0 14px; align-items: center; }

ul.ticks { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 9px; }
ul.ticks li { display: grid; grid-template-columns: 18px 1fr; gap: 10px;
              font-size: 14px; color: var(--ink-2); }
ul.ticks li::before { content: "—"; color: var(--accent); font-weight: 600; }

.price { display: flex; align-items: baseline; gap: 8px; margin-top: 4px; flex-wrap: wrap; }
.price b { font-family: "Source Serif 4", serif; font-size: 26px; font-weight: 700; }
.price span { color: var(--muted); font-size: 13px; }

table.sum { width: 100%; border-collapse: collapse; margin-top: 6px; font-size: 14px; }
table.sum td { padding: 9px 0; border-bottom: 1px solid var(--line-2); color: var(--ink-2); }
table.sum td:last-child { text-align: right; color: var(--ink); font-weight: 500; padding-left: 12px; }
table.sum tr:last-child td { border-bottom: 0; font-weight: 700; color: var(--ink); padding-top: 13px; }

.notice { display: flex; gap: 11px; background: var(--amber-bg);
          border: 1px solid color-mix(in srgb, var(--amber) 30%, transparent);
          border-radius: 6px; padding: 13px 15px; margin-top: 18px;
          font-size: 13.5px; color: var(--ink-2); }
.notice b { color: var(--amber); }
.notice.ok { background: color-mix(in srgb, var(--accent) 10%, transparent);
             border-color: color-mix(in srgb, var(--accent) 35%, transparent); }
.notice.ok b { color: var(--accent); }
.notice.err { border-color: color-mix(in srgb, var(--stop) 40%, transparent); }
.notice.err b { color: var(--stop); }

/* ---- demo: run ---- */
ol.steps { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 2px; }
ol.steps li { display: grid; grid-template-columns: 22px 1fr auto; gap: 12px;
              align-items: center; padding: 11px 2px; font-size: 14px;
              color: var(--muted); border-bottom: 1px solid var(--line-2); }
ol.steps li:last-child { border-bottom: 0; }
ol.steps .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line);
                justify-self: center; }
ol.steps li.run { color: var(--ink); font-weight: 500; }
ol.steps li.run .dot { background: var(--accent); animation: pulse 1.1s ease-in-out infinite; }
ol.steps li.ok { color: var(--ink-2); }
ol.steps li.ok .dot { background: var(--accent); }
ol.steps .t { font: 400 12px/1 "IBM Plex Mono", monospace; color: var(--muted); }
@keyframes pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.45); opacity: .55; } }
@media (prefers-reduced-motion: reduce) { ol.steps .dot { animation: none !important; } }

.meter { height: 4px; background: var(--line-2); border-radius: 2px; overflow: hidden; margin-top: 20px; }
.meter i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .45s ease; }

.rail { max-width: 1060px; margin: 0 auto; padding: 0 16px 12px;
        display: flex; gap: 6px; }
.rail div { flex: 1 1 0; min-width: 0; font-size: 11.5px; color: var(--muted);
            padding-top: 8px; border-top: 2px solid var(--line);
            white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
            transition: color .3s, border-color .3s; }
.rail div.on { color: var(--accent); border-top-color: var(--accent); font-weight: 600; }
.rail div.done { color: var(--ink-2); border-top-color: var(--accent); }
@media (min-width: 760px) { .rail { padding-inline: 20px; } }

/* ---- demo: results ---- */
.verdict { border-radius: 8px; padding: 20px 22px; background: var(--amber-bg);
           border: 1px solid color-mix(in srgb, var(--amber) 38%, transparent); }
.verdict .k { font-size: 11.5px; font-weight: 700; letter-spacing: .09em;
              text-transform: uppercase; color: var(--amber); }
.verdict h2 { font-size: 23px; margin: 7px 0 9px; letter-spacing: -.01em; }
.verdict p { margin: 0; font-size: 14px; color: var(--ink-2); }

.figs { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line);
        border-radius: 8px; overflow: hidden; margin-top: 18px;
        grid-template-columns: repeat(2, 1fr); }
@media (min-width: 620px) { .figs { grid-template-columns: repeat(4, 1fr); } }
.figs div { background: var(--card); padding: 15px 16px; }
.figs b { display: block; font-family: "Source Serif 4", serif; font-size: 25px;
          font-weight: 700; letter-spacing: -.01em; }
.figs span { display: block; font-size: 11.5px; color: var(--muted); margin-top: 3px; line-height: 1.35; }

.zones { margin-top: 20px; }
.zbar { display: flex; height: 26px; border-radius: 4px; overflow: hidden; border: 1px solid var(--line); }
.zbar i { display: block; }
.zkey { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 10px; font-size: 12.5px; color: var(--ink-2); }
.zkey span { display: flex; align-items: center; gap: 7px; }
.zkey em { width: 10px; height: 10px; border-radius: 2px; font-style: normal; }

.files { display: grid; gap: 10px; margin-top: 4px; }
.file { display: flex; align-items: center; gap: 13px; padding: 13px 15px;
        border: 1px solid var(--line); border-radius: 6px; background: var(--card); }
.file .ext { font: 600 10.5px/1 "IBM Plex Mono", monospace; letter-spacing: .05em;
             color: var(--paper); background: var(--ink-2); padding: 6px 7px; border-radius: 3px; flex: none; }
.file.main .ext { background: var(--accent); color: var(--on-accent); }
.file .n { font-size: 13.5px; font-weight: 500; overflow-wrap: anywhere; }
.file .m { font-size: 12px; color: var(--muted); }
.file .sp { margin-left: auto; flex: none; }

details.preview { margin-top: 20px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); }
details.preview summary { cursor: pointer; padding: 14px 18px; font-weight: 600; font-size: 14px; }
details.preview summary:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.pv { padding: 0 18px 18px; border-top: 1px solid var(--line-2); overflow-x: auto; }
.pv h4 { font-family: "Source Serif 4", serif; font-size: 15px; margin: 16px 0 6px; }
.pv table { width: 100%; border-collapse: collapse; font-size: 13px; }
.pv td, .pv th { text-align: left; padding: 6px 8px 6px 0; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.pv th { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; }
.pv td.r { text-align: right; font-family: "IBM Plex Mono", monospace; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pill { display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 7px;
        border-radius: 3px; background: var(--amber-bg); color: var(--amber); }
.pill.ok { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); }

/* ---- faq / prose ---- */
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 15px; }
.faq details p { color: var(--ink-2); margin: 8px 0 0; max-width: 70ch; font-size: 14.5px; }
.prose { max-width: 70ch; }
.prose h2 { font-size: 20px; margin: 30px 0 8px; }
.prose p, .prose li { color: var(--ink-2); }

footer.site { border-top: 1px solid var(--line); margin-top: 64px; padding-top: 18px;
              font-size: 12.5px; color: var(--muted); }
footer.site p { margin: 0 0 7px; max-width: 74ch; }
footer.site a { color: var(--muted); }

section[id] { scroll-margin-top: 80px; }