/* FormVitals site: shares its design system with the "FormVitals, Plainly" explainer.
   Calm ground, Inter Tight display type, hairline rules, soft grey bands, status dots. */
:root {
  --ground: #fbfbfa;
  --band: #f3f4f2;
  --panel: #ffffff;
  --ink: #1b1d1c;
  --ink-2: #4c524f;
  --ink-3: #626965;
  --rule: #e2e4e1;
  --accent: #0F6E56;
  --accent-hover: #0b5a46;
  --accent-2: #0b5a46;
  --accent-ink: #ffffff;
  --accent-wash: #e4f3ec;
  --good: #1a7f5a;
  --pending: #8a5700;
  --gap: #c0392b;
  --shadow: 0 1px 2px rgba(20, 30, 25, .04), 0 18px 48px -12px rgba(20, 40, 32, .16);
  --display: "Inter Tight", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --text: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --wide: 980px;
  --measure: 680px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --ground: #0c0d0d; --band: #161817; --panel: #1b1e1d;
    --ink: #f2f4f3; --ink-2: #b9c0bc; --ink-3: #8f9793; --rule: #2a2e2c;
    --accent: #5DCAA5; --accent-hover: #7ad8b7; --accent-2: #8fe0c3; --accent-ink: #04342C; --accent-wash: #11302a;
    --good: #5DCAA5; --pending: #f0bd5e; --gap: #ff8577;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 24px 60px -16px rgba(0, 0, 0, .7);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --ground: #0c0d0d; --band: #161817; --panel: #1b1e1d;
  --ink: #f2f4f3; --ink-2: #b9c0bc; --ink-3: #8f9793; --rule: #2a2e2c;
  --accent: #5DCAA5; --accent-hover: #7ad8b7; --accent-2: #8fe0c3; --accent-ink: #04342C; --accent-wash: #11302a;
  --good: #5DCAA5; --pending: #f0bd5e; --gap: #ff8577;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 24px 60px -16px rgba(0, 0, 0, .7);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; accent-color: var(--accent); scroll-padding-top: 64px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font: 17px/1.58 var(--text); letter-spacing: -.011em; -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent-wash); color: var(--ink); }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); text-wrap: balance; margin: 0; color: var(--ink); }
p { margin: 0; }
code {
  font-family: var(--mono); font-size: .84em; color: var(--accent-2); background: var(--accent-wash);
  padding: .1em .4em; border-radius: 5px; letter-spacing: 0; white-space: nowrap;
}

.wrap { max-width: var(--wide); margin: 0 auto; padding-inline: 22px; }
.band { background: var(--band); }
section { padding-block: clamp(72px, 11vw, 120px); }
section > .wrap { display: grid; gap: clamp(36px, 5vw, 56px); }
.head { display: grid; gap: 14px; max-width: var(--measure); }
.head.center { margin-inline: auto; text-align: center; justify-items: center; }
h2 { font-size: clamp(34px, 5.4vw, 52px); font-weight: 700; letter-spacing: -.035em; line-height: 1.06; }
.head p { font-size: clamp(19px, 2.2vw, 21px); line-height: 1.5; color: var(--ink-2); letter-spacing: -.015em; }
h3 { font-size: 21px; font-weight: 600; letter-spacing: -.02em; line-height: 1.25; }

/* ---------- top bar ---------- */
.bar {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  background: color-mix(in srgb, var(--ground) 82%, transparent);
  backdrop-filter: saturate(180%) blur(18px); -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--rule);
}
.bar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 52px; }
.mark { display: flex; align-items: center; gap: 8px; font: 600 16px/1 var(--display); letter-spacing: -.02em; color: var(--ink); text-decoration: none; }
.mark:hover { color: var(--ink); }
.mark svg { width: 24px; height: 24px; flex: none; }
.bar nav { display: flex; align-items: center; gap: 24px; }
.bar nav a { font-size: 13.5px; color: var(--ink-2); text-decoration: none; white-space: nowrap; }
.bar nav a:hover { color: var(--ink); }
.bar nav .pill, .bar nav .pill:hover { color: var(--accent-ink); }
@media (max-width: 720px) { .bar nav a:not(.pill):not(.keep) { display: none; } .bar nav { gap: 16px; } }

/* ---------- buttons ---------- */
.pill {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 999px;
  font: 600 16px/1 var(--text); letter-spacing: -.01em; padding: 14px 24px; text-decoration: none; cursor: pointer;
  transition: background-color .2s ease, transform .2s cubic-bezier(.16, 1, .3, 1);
}
.pill:hover { background: var(--accent-hover); color: var(--accent-ink); }
.pill:active { transform: scale(.98); }
.pill:disabled { opacity: .55; cursor: default; }
.bar .pill { font-size: 13px; padding: 7px 14px; }
.more { font-size: 17px; font-weight: 500; text-decoration: none; }
.more::after { content: " \203A"; }
.more:hover { text-decoration: underline; }
.actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 28px; }

/* ---------- hero ---------- */
.hero { padding-block: clamp(72px, 12vw, 140px) 0; text-align: center; }
.hero .wrap { display: grid; gap: 24px; justify-items: center; }
.hero .for { font: 600 17px/1.3 var(--display); color: var(--accent); letter-spacing: -.01em; }
.hero h1 { font-size: clamp(44px, 8vw, 80px); font-weight: 700; letter-spacing: -.045em; line-height: 1.02; max-width: 13ch; }
.hero h1 span { color: var(--accent); }
.hero .sub { font-size: clamp(19px, 2.4vw, 23px); line-height: 1.45; color: var(--ink-2); max-width: 36ch; letter-spacing: -.018em; }
.hero .actions { margin-top: 6px; }
.pulse { width: min(560px, 100%); height: 56px; margin-top: 8px; }
.pulse path { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
@media (prefers-reduced-motion: no-preference) {
  .pulse path { stroke-dasharray: 1200; stroke-dashoffset: 1200; animation: trace 2.2s cubic-bezier(.16, 1, .3, 1) .2s forwards; }
  @keyframes trace { to { stroke-dashoffset: 0; } }
}

/* ---------- product panel (report / alert) ---------- */
.stage-wrap { padding-block: clamp(40px, 6vw, 64px) clamp(72px, 11vw, 120px); }
.panel {
  max-width: 560px; margin: 0 auto; background: var(--panel); border-radius: 22px;
  box-shadow: var(--shadow); padding: clamp(22px, 4vw, 34px); text-align: left;
}
.panel-head { display: grid; gap: 4px; padding-bottom: 18px; border-bottom: 1px solid var(--rule); }
.panel-head .title { font: 600 20px/1.25 var(--display); letter-spacing: -.02em; color: var(--ink); }
.panel-head span { font-size: 14px; color: var(--ink-3); }
.panel-head .alert { color: var(--gap); }
.readout { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding-block: 13px; border-bottom: 1px solid var(--rule); font-size: 15.5px; }
.readout:last-of-type { border-bottom: 0; }
.readout > span:first-child { color: var(--ink-2); }
.panel .foot { font-size: 14px; color: var(--ink-3); padding-top: 14px; border-top: 1px solid var(--rule); }

/* ---------- status dots ---------- */
.dot { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; font-weight: 600; font-size: 14.5px; font-variant-numeric: tabular-nums; }
.dot::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; flex: none; }
.dot.good { color: var(--good); }
.dot.pending { color: var(--pending); }
.dot.gap { color: var(--gap); }

/* ---------- statement + trio ---------- */
.statement { font: 600 clamp(26px, 3.9vw, 40px)/1.2 var(--display); letter-spacing: -.03em; max-width: 24ch; color: var(--ink-3); }
.statement b { font-weight: 600; color: var(--ink); }
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 40px; border-top: 1px solid var(--rule); }
.trio > div { padding-top: 22px; display: grid; gap: 6px; align-content: start; }
.trio h3 { font-size: 19px; }
.trio p { font-size: 15.5px; color: var(--ink-2); }
@media (max-width: 760px) { .trio { grid-template-columns: 1fr; gap: 28px; } }

/* ---------- numbered steps ---------- */
ol.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 40px; }
ol.steps li { counter-increment: s; display: grid; gap: 8px; align-content: start; padding-top: 22px; border-top: 1px solid var(--ink); }
ol.steps li::before { content: counter(s); font: 600 15px/1 var(--display); color: var(--accent); font-variant-numeric: tabular-nums; }
ol.steps h3 { font-size: 19px; }
ol.steps p { font-size: 15.5px; color: var(--ink-2); }
@media (max-width: 760px) { ol.steps { grid-template-columns: 1fr; gap: 32px; } }

/* ---------- feature list ---------- */
.split { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } }
ul.features { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
ul.features li { display: grid; gap: 2px; padding-block: 16px; border-bottom: 1px solid var(--rule); font-size: 15.5px; color: var(--ink-2); }
ul.features li b { font-weight: 600; font-size: 17px; color: var(--ink); letter-spacing: -.015em; }

/* ---------- pricing ---------- */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.plans.one { grid-template-columns: minmax(0, 560px); justify-content: center; }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }
.plan { background: var(--panel); border-radius: 22px; padding: clamp(26px, 4vw, 36px); display: grid; gap: 14px; align-content: start; }
.band .plan { background: var(--ground); }
.plan .name { font: 600 17px/1.2 var(--display); color: var(--ink-2); letter-spacing: -.01em; }
.plan .price { font: 700 clamp(44px, 6vw, 56px)/1 var(--display); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.plan .price small { font: 500 17px/1 var(--text); color: var(--ink-3); letter-spacing: -.01em; }
.plan .deal { font-size: 15px; font-weight: 600; color: var(--accent); }
.plan p { font-size: 15.5px; color: var(--ink-2); }
.plan .pill { justify-self: start; margin-top: 6px; }
.fine { font-size: 14px; color: var(--ink-3); }

/* ---------- sign-up ---------- */
.signup { max-width: 560px; margin: 0 auto; width: 100%; display: grid; gap: 28px; }
.signup form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.field input, .field select {
  width: 100%; font: 400 17px/1.3 var(--text); color: var(--ink); background: var(--panel);
  border: 1px solid var(--rule); border-radius: 12px; padding: 14px 16px; letter-spacing: -.01em;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input::placeholder { color: var(--ink-3); }
.field input:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-wash); }
.signup .pill { width: 100%; padding-block: 16px; margin-top: 4px; }
.signup .fine { text-align: center; }
.thanks { display: none; text-align: center; padding: 22px; border-radius: 16px; background: var(--accent-wash); color: var(--accent-2); font-weight: 600; }

/* ---------- questions ---------- */
.faq { max-width: var(--measure); border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding-block: 20px; font: 600 18px/1.35 var(--display); letter-spacing: -.02em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 24px/1 var(--text); color: var(--ink-3); transition: transform .25s cubic-bezier(.16, 1, .3, 1); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 20px; color: var(--ink-2); font-size: 16px; max-width: 60ch; }

/* ---------- callout ---------- */
.aside { background: var(--band); border-radius: 18px; padding: clamp(20px, 3vw, 28px); display: grid; gap: 6px; }
.band .aside { background: var(--ground); }
.aside h3 { font-size: 17px; }
.aside p { font-size: 15.5px; color: var(--ink-2); }
.aside.caution h3 { color: var(--pending); }

footer { border-top: 1px solid var(--rule); padding-block: 28px 56px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; font-size: 13px; color: var(--ink-3); }
footer a { color: var(--ink-2); text-decoration: none; }
footer a:hover { color: var(--ink); }
.plan.tile { background: var(--band); }
.hero h1.long { max-width: 17ch; font-size: clamp(40px, 6.6vw, 68px); }

/* ---------- setup guide (reading page) ---------- */
.guide-head { padding-block: clamp(64px, 10vw, 112px) clamp(40px, 6vw, 64px); border-bottom: 1px solid var(--rule); }
.guide-head .wrap { display: grid; gap: 20px; }
.guide-head .for { font: 600 17px/1.3 var(--display); color: var(--accent); letter-spacing: -.01em; }
.guide-head h1 { font-size: clamp(38px, 6vw, 60px); font-weight: 700; letter-spacing: -.04em; line-height: 1.04; max-width: 16ch; }
.guide-head .sub { font-size: clamp(18px, 2.2vw, 21px); line-height: 1.5; color: var(--ink-2); max-width: var(--measure); letter-spacing: -.015em; }
.address { display: inline-grid; gap: 8px; justify-self: start; background: var(--band); border-radius: 16px; padding: 18px 22px; }
.address span { font-size: 14px; font-weight: 600; color: var(--ink-3); }
.address code { font-size: 18px; padding: .2em .5em; }
.doc { padding-block: clamp(48px, 7vw, 80px) clamp(72px, 10vw, 112px); display: grid; gap: 18px; max-width: calc(var(--measure) + 44px); margin-inline: 0 auto; }
@media (min-width: 1024px) { .doc { margin-inline: calc((100% - var(--wide)) / 2) auto; } }
.doc > p, .doc li { color: var(--ink-2); }
.doc strong { color: var(--ink); font-weight: 600; }
.doc h2 { font-size: clamp(28px, 4vw, 38px); letter-spacing: -.03em; line-height: 1.1; margin-top: clamp(36px, 5vw, 56px); padding-top: clamp(36px, 5vw, 56px); border-top: 1px solid var(--rule); }
.doc h3 { font-size: 20px; margin-top: 18px; }
.doc ol { margin: 0; padding-left: 1.3em; display: grid; gap: 8px; }
.doc ol li::marker { color: var(--accent); font-weight: 600; font-family: var(--display); }
.choice { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 8px; }
.choice .plan { gap: 10px; }
.choice .plan p { font-size: 15.5px; }
.choice .dot:empty, .choice .dot:not(.good) { visibility: hidden; }
@media (max-width: 720px) { .choice { grid-template-columns: 1fr; } .choice .dot:not(.good) { display: none; } }
.doc .aside h3 { margin-top: 0; }
.plans.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .plans.three { grid-template-columns: 1fr; } }
.plans-foot { display: grid; gap: 18px; justify-items: center; text-align: center; }
.plans-foot p { color: var(--ink-2); font-size: 16px; }
.plans-foot strong { color: var(--ink); font-weight: 600; }
.plan .price small { white-space: nowrap; }
.plans.three .price { font-size: clamp(40px, 4.2vw, 48px); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }