/* TraceWard Labs landers. Mobile first: base = 360-390px, then min-width 48rem and 64rem only. */
:root {
  --ink: #0F1A24; --ink-2: #1B2A38; --paper: #F7F5F0; --line: #E3DED3; --white: #fff;
  --text: #0F1A24; --muted: #4A5866; --on-ink: #fff; --on-ink-muted: #B8C4CE;
  --green: #0B6E55; --green-dark: #08533F; --green-tint: #E6F2EE;
  --amber: #F2B33D; --amber-dark: #D9971A; --red: #B42318; --red-tint: #FDF1EF;
  --field: #6B7785; --focus: #0B6E55;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
  --r: 12px; --r-sm: 10px; --pill: 999px;
  --shadow: 0 1px 2px rgb(15 26 36 / .06), 0 10px 28px -14px rgb(15 26 36 / .22);
  --header: 60px; --gutter: 1.25rem;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header) + 12px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; font: 400 1rem/1.6 var(--font); color: var(--text); background: var(--white); padding-bottom: 84px; overflow-wrap: anywhere; }
h1, h2, h3 { margin: 0 0 .75rem; line-height: 1.15; letter-spacing: -.02em; overflow-wrap: normal; }
h1 { font-size: clamp(2rem, 6.5vw + .5rem, 3.75rem); font-weight: 800; letter-spacing: -.035em; }
h2 { font-size: clamp(1.625rem, 3.6vw + .9rem, 2.75rem); font-weight: 800; }
h3 { font-size: 1.125rem; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1rem; }
a { color: var(--green); text-underline-offset: 3px; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.wrap { width: 100%; max-width: 72rem; margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 48rem; }
.center { text-align: center; }
.mono { font-family: var(--mono); font-size: .9375rem; }

/* Skip link */
.skip { position: absolute; left: .75rem; top: -4rem; z-index: 100; background: var(--ink); color: var(--white); padding: .75rem 1rem; border-radius: var(--r-sm); }
.skip:focus { top: .75rem; }

/* Icons */
.ic { width: 1.25rem; height: 1.25rem; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.ic--box { width: 2.75rem; height: 2.75rem; padding: .625rem; border-radius: var(--r-sm); background: var(--green-tint); color: var(--green); }
.ic--lg { width: 3rem; height: 3rem; color: var(--amber); }

/* Buttons: min 48px tall tap targets */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 3rem; padding: .75rem 1.25rem; border: 2px solid var(--green); border-radius: var(--r-sm); background: var(--green); color: var(--white); font: 700 1rem/1.2 var(--font); text-align: center; text-decoration: none; cursor: pointer; transition: background-color .15s, border-color .15s, color .15s; }
.btn:hover { background: var(--green-dark); border-color: var(--green-dark); }
.btn--sm { min-height: 2.75rem; padding: .5rem 1rem; font-size: .9375rem; }
.btn--block { width: 100%; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }
.btn--amber { background: var(--amber); border-color: var(--amber); color: var(--ink); }
.btn--amber:hover { background: var(--amber-dark); border-color: var(--amber-dark); }
.btn--ghost-light { background: transparent; color: var(--white); border-color: var(--on-ink-muted); }
.btn--ghost-light:hover { background: var(--white); color: var(--ink); }
.btn .ic { width: 1.125rem; height: 1.125rem; }
.ctas { display: grid; gap: .75rem; margin: 1.5rem 0; }
.linklike { background: none; border: 0; padding: 0; font: inherit; color: inherit; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; min-height: 2.75rem; }

/* Header: solid, never overlaps content */
.top { position: sticky; top: 0; z-index: 50; background: rgb(255 255 255 / .96); border-bottom: 1px solid var(--line); }
.top__in { display: flex; align-items: center; gap: .75rem; min-height: var(--header); }
.logo { display: inline-flex; align-items: center; gap: .5rem; color: var(--ink); text-decoration: none; margin-right: auto; min-height: 2.75rem; }
.logo__word { font-weight: 800; font-size: 1.125rem; letter-spacing: -.02em; }
.logo__word span { font-weight: 500; color: var(--muted); }
.top__nav, .top__cta { display: none; }
.lang { position: relative; }
.lang summary { list-style: none; display: flex; align-items: center; gap: .25rem; min-height: 2.75rem; min-width: 2.75rem; padding: 0 .75rem; border: 1.5px solid var(--line); border-radius: var(--r-sm); font-weight: 700; font-size: .875rem; cursor: pointer; }
.lang summary::-webkit-details-marker { display: none; }
.lang summary::after { content: ""; width: .45rem; height: .45rem; border: solid currentColor; border-width: 0 2px 2px 0; transform: rotate(45deg) translateY(-2px); margin-left: .25rem; }
.lang ul { position: absolute; right: 0; top: calc(100% + .375rem); min-width: 10rem; padding: .375rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--r-sm); box-shadow: var(--shadow); }
.lang a { display: flex; align-items: center; min-height: 2.75rem; padding: 0 .75rem; border-radius: 8px; color: var(--ink); text-decoration: none; }
.lang a:hover, .lang a[aria-current] { background: var(--paper); font-weight: 700; }

/* Hero */
.hero { padding: 2rem 0 2.5rem; background: linear-gradient(180deg, var(--paper), var(--white)); }
.badge { display: inline-flex; align-items: center; gap: .5rem; margin-bottom: 1.25rem; padding: .375rem .875rem .375rem .625rem; border-radius: var(--pill); background: var(--ink); color: var(--white); font-size: .875rem; font-weight: 600; }
.badge .ic { color: var(--amber); width: 1.125rem; height: 1.125rem; }
.lead { font-size: 1.1875rem; font-weight: 600; color: var(--ink-2); }
.checks { display: grid; gap: .625rem; margin: 1.25rem 0 0; }
.checks li { display: flex; gap: .625rem; align-items: flex-start; }
.checks .ic { margin-top: .2rem; color: var(--green); stroke-width: 2.25; }
.alert { display: flex; gap: .75rem; align-items: flex-start; margin: 0; padding: .875rem 1rem; border-left: 4px solid var(--red); border-radius: 0 var(--r-sm) var(--r-sm) 0; background: var(--red-tint); font-size: .9375rem; }
.alert .ic { color: var(--red); margin-top: .15rem; }
.hero__art { display: none; }

/* Sections */
.sec { padding: 3.5rem 0; }
.sec--tight { padding: 2.5rem 0; }
.sec--paper { background: var(--paper); }
.sec--ink { background: var(--ink); color: var(--on-ink); --focus: var(--amber); }
.sec--ink a:not(.btn) { color: var(--amber); }
.sec > .wrap > h2 { margin-bottom: 1.5rem; max-width: 40rem; }
.sub { margin-top: 2.5rem; }
.intro { color: var(--muted); }

/* Do this now: numbered roadmap */
.roadmap { display: grid; gap: .75rem; counter-reset: none; }
.roadmap li { display: flex; gap: 1rem; align-items: flex-start; padding: 1rem; border: 1px solid rgb(255 255 255 / .12); border-radius: var(--r); background: var(--ink-2); }
.roadmap p { margin: 0; color: var(--on-ink-muted); }
.roadmap strong { color: var(--white); }
.num { display: inline-grid; place-items: center; flex: none; width: 2.25rem; height: 2.25rem; border-radius: var(--pill); background: var(--amber); color: var(--ink); font-weight: 800; font-size: .9375rem; font-variant-numeric: tabular-nums; }

/* Cards */
.cards { display: grid; gap: 1rem; }
.card { padding: 1.25rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--white); box-shadow: var(--shadow); }
.card p { margin: 0; color: var(--muted); }
.card .ic--box { margin-bottom: 1rem; }
.card__tag { display: inline-block; margin-bottom: .75rem; font: 600 .8125rem/1 var(--mono); color: var(--green); }

/* How it works: mobile shows steps first, then the callout and CTA; desktop puts intro in a sticky column */
.how { display: flex; flex-direction: column; }
.how__intro { display: contents; }
.timeline { order: 1; }
.how .callout { order: 2; margin: 2rem 0 1rem; }
.how__intro .btn { order: 3; align-self: flex-start; }
.callout { display: flex; gap: .75rem; padding: 1rem; border-radius: var(--r); background: var(--white); border: 1px solid var(--line); }
.callout .ic { color: var(--green); margin-top: .15rem; }
.timeline { position: relative; display: grid; gap: 1.25rem; }
.timeline::before { content: ""; position: absolute; left: 1.125rem; top: .5rem; bottom: .5rem; width: 2px; background: var(--line); }
.timeline li { position: relative; display: flex; gap: 1rem; }
.timeline .num { background: var(--ink); color: var(--white); font-size: .8125rem; }
.timeline h3 { margin: .375rem 0 .25rem; }
.timeline p { margin: 0; color: var(--muted); }

/* Why: features */
.features { display: grid; gap: 1.25rem; }
.features li { display: flex; gap: 1rem; align-items: flex-start; }
.features h3 { margin: .5rem 0 .25rem; }
.features p { margin: 0; color: var(--muted); }

/* Trusted band */
.trusted { display: flex; gap: 1rem; align-items: flex-start; }
.trusted h2 { font-size: 1.5rem; }
.trusted p { margin: 0; color: var(--on-ink-muted); }

/* Chips */
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chips li { padding: .5rem .875rem; border: 1px solid var(--line); border-radius: var(--pill); background: var(--paper); font-size: .9375rem; }

/* Under $25k split */
.split { display: grid; gap: .5rem; }
.pill { display: inline-block; margin-bottom: .75rem; padding: .25rem .75rem; border-radius: var(--pill); background: var(--amber); color: var(--ink); font-size: .8125rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.ctas--stack { margin: 0; }

/* Form */
.form__grid { display: grid; gap: 1rem; }
.field label, .consent label { display: block; margin-bottom: .375rem; font-weight: 600; }
.opt { font-weight: 400; color: var(--muted); }
input, select, textarea { width: 100%; min-height: 3rem; padding: .75rem .875rem; border: 1.5px solid var(--field); border-radius: var(--r-sm); background: var(--white); color: var(--text); font: 400 1rem/1.4 var(--font); }
textarea { resize: vertical; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: right 1.125rem center, right .8125rem center; background-size: .3125rem .3125rem; background-repeat: no-repeat; padding-right: 2.5rem; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; border-color: var(--ink); }
[aria-invalid="true"] { border-color: var(--red); background: var(--red-tint); }
.hint { margin: .375rem 0 0; font-size: .875rem; color: var(--muted); }
.err { margin: .375rem 0 0; font-size: .875rem; font-weight: 600; color: var(--red); }
.consent { display: grid; grid-template-columns: auto 1fr; gap: .75rem; align-items: start; margin: 1.5rem 0; }
.consent input { width: 1.5rem; min-height: 1.5rem; height: 1.5rem; margin: .125rem 0 0; accent-color: var(--green); }
.consent label { font-weight: 400; margin: 0; }
.consent .err { grid-column: 2; }
.tracer-hint { display: flex; gap: .625rem; margin: 0; padding: .875rem 1rem; border-radius: var(--r-sm); background: #FFF6E2; border: 1px solid #F0D9A6; font-size: .9375rem; }
.tracer-hint .ic { color: var(--amber-dark); margin-top: .15rem; }
.tracer-hint[hidden], .err[hidden], [data-field][hidden] { display: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form__status { margin: 1rem 0 0; font-weight: 600; }
.form__status:empty { display: none; }
.form__status.is-error { color: var(--red); }
.form__done { padding: 1.5rem; border-radius: var(--r); background: var(--green-tint); border: 1px solid #B9DCCF; font-weight: 600; }
button[disabled] { opacity: .7; cursor: progress; }

/* FAQ: native details */
.faq { display: grid; gap: .625rem; }
.faq details { border: 1px solid var(--line); border-radius: var(--r); background: var(--white); }
.faq summary { position: relative; display: flex; align-items: center; min-height: 3.25rem; padding: .875rem 3rem .875rem 1.125rem; font-weight: 700; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 1.25rem; width: .55rem; height: .55rem; border: solid var(--green); border-width: 0 2.5px 2.5px 0; transform: rotate(45deg); transition: transform .15s; }
.faq details[open] summary::after { transform: rotate(-135deg); }
.faq details p { margin: 0; padding: 0 1.125rem 1.125rem; color: var(--muted); }

/* Ready CTA */
.ready p { color: var(--on-ink-muted); }
.ctas--center { justify-content: center; }

/* Footer */
.foot { padding: 2.5rem 0 1.5rem; background: var(--ink-2); color: var(--on-ink-muted); font-size: .875rem; --focus: var(--amber); }
.foot a, .foot .linklike { color: var(--white); }
.logo--light { color: var(--white); margin-bottom: 1rem; }
.logo--light .logo__word span { color: var(--on-ink-muted); }
.foot__legal strong, .foot__company strong { color: var(--white); }
.foot__links, .foot__langs { display: flex; flex-wrap: wrap; gap: 0 1.25rem; margin: 1rem 0; }
.foot__links a, .foot__langs a { display: inline-flex; align-items: center; min-height: 2.75rem; }
.foot__copy { margin: 0; }

/* Cookie banner + sticky mobile CTA */
.cookie { position: fixed; z-index: 60; left: .75rem; right: .75rem; bottom: .75rem; padding: 1rem; border-radius: var(--r); background: var(--white); border: 1px solid var(--line); box-shadow: 0 12px 40px -10px rgb(15 26 36 / .35); font-size: .9375rem; }
.cookie__h { margin: 0 0 .25rem; font-weight: 800; }
.cookie__btns { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-top: .75rem; }
.sticky-cta { position: fixed; z-index: 40; left: 0; right: 0; bottom: 0; padding: .625rem var(--gutter) calc(.625rem + env(safe-area-inset-bottom)); background: rgb(255 255 255 / .97); border-top: 1px solid var(--line); transition: transform .2s; }
.sticky-cta.is-hidden { transform: translateY(110%); }
.cookie:not([hidden]) + .sticky-cta { display: none; }

/* Trace illustration (desktop hero) */
.trace { width: 100%; height: auto; font-family: var(--mono); }
.trace__card { fill: var(--white); stroke: var(--line); stroke-width: 2; }
.trace__path { fill: none; stroke: var(--green); stroke-width: 3; stroke-linecap: round; }
.trace__path--alt { stroke: var(--line); stroke-dasharray: 6 8; }
.trace__node circle { fill: var(--ink); }
.trace__node--flag circle { fill: var(--amber); }
.trace__node--flag path { fill: none; stroke: var(--ink); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.trace text { font-size: 13px; fill: var(--muted); text-anchor: middle; }
.trace .trace__label { text-anchor: start; font-weight: 700; fill: var(--ink); }
.trace .trace__label--end { text-anchor: end; fill: var(--green); }
@media (prefers-reduced-motion: no-preference) {
  .trace__path:not(.trace__path--alt) { stroke-dasharray: 520; stroke-dashoffset: 520; animation: draw 2.2s ease-out .3s forwards; }
  @keyframes draw { to { stroke-dashoffset: 0; } }
}

/* Tablet */
@media (min-width: 48rem) {
  :root { --gutter: 2rem; --header: 68px; }
  body { padding-bottom: 0; }
  .sticky-cta { display: none; }
  .top__cta { display: inline-flex; }
  .hero { padding: 4rem 0; }
  .ctas { display: flex; flex-wrap: wrap; }
  .sec { padding: 5rem 0; }
  .roadmap { grid-template-columns: repeat(2, 1fr); }
  .cards--2, .cards--3 { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .form__grid { grid-template-columns: 1fr 1fr; }
  .form__grid > .tracer-hint, .form__grid > [data-field="txids"], .form__grid > [data-field="description"] { grid-column: 1 / -1; }
  .cookie { left: auto; right: 1.5rem; bottom: 1.5rem; max-width: 26rem; }
  .split { grid-template-columns: 1.4fr 1fr; align-items: center; gap: 2.5rem; }
}

/* Desktop */
@media (min-width: 64rem) {
  .top__nav { display: flex; gap: 1.75rem; margin-right: .5rem; }
  .top__nav a { color: var(--ink); text-decoration: none; font-weight: 600; display: inline-flex; align-items: center; min-height: 2.75rem; }
  .top__nav a:hover { color: var(--green); }
  .hero { padding: 5rem 0 6rem; }
  .hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3.5rem; align-items: center; }
  .hero__art { display: block; }
  .lead { font-size: 1.375rem; }
  .sec { padding: 6rem 0; }
  .roadmap { grid-template-columns: repeat(5, 1fr); }
  .roadmap li { flex-direction: column; }
  .cards--3 { grid-template-columns: repeat(3, 1fr); }
  .features { grid-template-columns: repeat(3, 1fr); }
  .how { display: grid; grid-template-columns: .9fr 1.1fr; gap: 4rem; align-items: start; }
  .how__intro { display: block; position: sticky; top: calc(var(--header) + 2rem); }
  .how .callout { margin: 0 0 1.5rem; }
  .card { padding: 1.75rem; }
}