/* PromptCompany / PromptFactory one-pager.
   Palette from the v3 identity book, section 06 (direction C "Block P"):
   ink #111418, paper #f4f3ee, green #1e9e64 (graphics only on paper),
   text green #157a4c (on paper), #3ddc84 (on ink), grey #5d636b.
   No web fonts: system sans, like the pilot deck (Arial). No scripts. */

:root {
  --ink: #111418;
  --ink-2: #1a1e24;
  --ink-3: #0b0d10;
  --ink-line: #2d333b;
  --paper: #f4f3ee;
  --paper-card: #ffffff;
  --paper-line: #d8d5cb;
  --green: #1e9e64;
  --green-text: #157a4c;
  --green-on-ink: #3ddc84;
  --grey: #5d636b;
  --on-ink: #f4f3ee;
  --on-ink-muted: #b3b8bf;
  --sans: "Inter", "Segoe UI", -apple-system, system-ui, Roboto, "Helvetica Neue", Arial, "Liberation Sans", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", "DejaVu Sans Mono", monospace;
  --wrap: 1120px;
  --gutter: 20px;
  --radius: 10px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ink);
  color: var(--on-ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; height: auto; }

a { color: inherit; }
a:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--green-on-ink);
  outline-offset: 3px;
  border-radius: 4px;
}
.on-paper a:focus-visible, .on-paper .btn:focus-visible { outline-color: var(--green-text); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--green-on-ink); color: var(--ink);
  padding: 10px 14px; border-radius: 6px; font-weight: 700; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(17, 20, 24, 0.96);
  border-bottom: 1px solid var(--ink-line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 64px;
}
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand img { height: 30px; width: auto; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { text-decoration: none; color: var(--on-ink-muted); font-size: 15px; }
.nav a:hover { color: var(--on-ink); }
.nav .nav-cta {
  color: var(--ink); background: var(--green-on-ink); font-weight: 650;
  padding: 8px 14px; border-radius: 8px;
}
.nav .nav-cta:hover { color: var(--ink); background: #63e59d; }
.nav .lang {
  font-family: var(--mono); font-size: 13px; letter-spacing: .04em;
  border: 1px solid var(--ink-line); border-radius: 6px; padding: 4px 8px;
}

/* one-pager header: section links, then the actions (CTA + EN | PL links to the other language's page) */
.site-header .nav-main { margin-left: auto; }
.lang-switch {
  display: inline-flex; align-items: center; flex-shrink: 0;
  font-family: var(--mono); font-size: 13px; letter-spacing: .04em; line-height: 1.4;
  border: 1px solid var(--ink-line); border-radius: 6px; padding: 2px;
}
.nav .lang-switch a {
  font: inherit; letter-spacing: inherit; color: var(--on-ink-muted); text-decoration: none;
  border-radius: 4px; margin: 0; padding: 3px 6px;
}
.nav .lang-switch a:hover { color: var(--on-ink); }
.nav .lang-switch a[aria-current="page"] { color: var(--green-on-ink); background: var(--ink-line); font-weight: 700; }
.lang-switch a:focus-visible { outline: 3px solid var(--green-on-ink); outline-offset: 2px; }
.lang-switch .sep { color: #4a525c; padding: 0 1px; }

@media (max-width: 760px) {
  .nav .nav-section { display: none; }
  .nav { gap: 12px; }
  .brand img { height: 24px; }
  html { scroll-padding-top: 112px; }
  .site-header .wrap { flex-wrap: wrap; gap: 4px 12px; min-height: 0; padding-top: 10px; padding-bottom: 6px; }
  .site-header .nav-actions { margin-left: auto; }
  .site-header .nav-main { order: 3; flex: 1 1 100%; margin-left: 0; flex-wrap: wrap; gap: 0 20px; }
  .nav-main .nav-section { display: inline-block; font-size: 14px; padding: 6px 0; }
}
@media (max-width: 400px) {
  .brand img { height: 22px; }
  .site-header .nav-actions { gap: 8px; }
  .nav .nav-cta { padding: 8px 10px; }
  .nav .lang-switch a { padding: 3px 5px; }
}
@media (max-width: 340px) {
  .site-header .wrap { column-gap: 8px; }
  .brand img { height: 18px; }
  .site-header .nav-actions { gap: 6px; }
  .nav .nav-cta { padding: 8px 9px; }
  .lang-switch .sep { display: none; }
}

/* ---------- type ---------- */
h1, h2, h3 { line-height: 1.12; margin: 0; letter-spacing: -0.015em; }
h1 { font-size: clamp(34px, 4.6vw, 56px); font-weight: 750; }
h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 750; }
h3 { font-size: 19px; font-weight: 700; letter-spacing: 0; }
p { margin: 0; }
@media (max-width: 360px) { h1 { font-size: 30px; } }

.eyebrow {
  font-family: var(--mono); font-size: 13px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--green-on-ink); margin: 0 0 14px;
}
.on-paper .eyebrow { color: var(--green-text); }

.lead { font-size: clamp(18px, 2vw, 21px); color: var(--on-ink-muted); max-width: 62ch; }
.on-paper .lead { color: var(--grey); }

.tag {
  display: inline-block; font-family: var(--mono); font-size: 13px; font-weight: 600;
  letter-spacing: .06em; color: var(--green-on-ink);
}
.on-paper .tag { color: var(--green-text); }

/* ---------- sections ---------- */
section { padding: clamp(64px, 9vw, 104px) 0; }
.on-paper { background: var(--paper); color: var(--ink); }
.section-head { max-width: 760px; margin-bottom: 40px; }
.section-head h2 + .lead { margin-top: 16px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 20px; border-radius: 9px;
  font-weight: 650; font-size: 16px; text-decoration: none; border: 1px solid transparent;
}
.btn-primary { background: var(--green-on-ink); color: var(--ink); }
.btn-primary:hover { background: #63e59d; }
.btn-ghost { border-color: #4a525c; color: var(--on-ink); }
.btn-ghost:hover { border-color: var(--on-ink-muted); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
@media (max-width: 480px) { .btn-row .btn { flex: 1 1 100%; } }

/* ---------- hero ---------- */
.hero { padding-top: clamp(56px, 8vw, 96px); padding-bottom: clamp(56px, 8vw, 88px); }
.hero .claim {
  margin-top: 24px; font-size: clamp(19px, 2.2vw, 24px); line-height: 1.45;
  max-width: 46ch; color: var(--on-ink);
}
.hero .claim strong { color: var(--green-on-ink); font-weight: 650; }
.hero .sub { margin-top: 18px; color: var(--on-ink-muted); max-width: 62ch; }
.hero .sub b { color: var(--on-ink); font-weight: 650; }

/* belt (slide 1 of the pilot deck, as a vertical list) */
.hero .wrap {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: 56px; align-items: center;
}
.belt {
  margin: 0; background: var(--ink-2); border: 1px solid var(--ink-line);
  border-radius: 14px; padding: 24px;
}
.belt-title { margin-bottom: 16px; }
.belt ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.belt li {
  position: relative; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline;
  gap: 4px 12px; border: 1.5px solid var(--green); border-radius: 9px; background: var(--ink); padding: 10px 14px;
}
.belt li:not(:last-child)::after {
  content: ""; position: absolute; left: 24px; bottom: -13.5px; width: 2px; height: 12px; background: #7c848e;
}
.belt li .n { font-weight: 700; font-size: 16px; line-height: 1.3; }
.belt li .s { font-family: var(--mono); font-size: 13px; letter-spacing: .05em; color: var(--green-on-ink); }
.belt li .human, .belt li .loop { flex-basis: 100%; display: flex; gap: 8px; align-items: center; font-size: 14px; }
.belt li .human { color: var(--on-ink); }
.belt li .loop { color: var(--green-on-ink); }
.belt li.task { border-color: #6b727c; }
.belt li.task .s { color: var(--on-ink-muted); }
.belt li.gate { background: var(--green); border-color: var(--green); color: var(--ink); }
.belt li.gate .s, .belt li.gate .human { color: var(--ink); }
.belt li.done { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.belt li.done .s { color: var(--green-text); }
.belt .person { width: 16px; height: 16px; margin-top: 0; }

@media (max-width: 1000px) {
  .hero .wrap { grid-template-columns: minmax(0, 1fr); gap: 44px; }
}

/* person icon (human gate) */
.person { flex-shrink: 0; width: 18px; height: 18px; margin-top: 3px; }
.person circle, .person rect { fill: currentColor; }

/* ---------- how it works ---------- */
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; align-items: start;
}
.step {
  background: var(--paper-card); border: 1px solid var(--paper-line); border-radius: var(--radius);
  padding: 24px 22px; display: flex; flex-direction: column; gap: 12px;
}
.step .num {
  font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: .08em; color: var(--green-text);
}
.step h3 { font-size: 21px; }
.step p { color: #2f343a; font-size: 16px; }
.step .gate {
  margin-top: 4px; display: flex; gap: 10px; align-items: flex-start;
  border-top: 1px solid var(--paper-line); padding-top: 14px; font-size: 15px; color: var(--ink);
}
.step .gate .person { color: var(--green); }
.step .gate strong { display: block; }
.step.has-gate { border-color: var(--green); box-shadow: inset 0 3px 0 var(--green); }

.how-foot {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; margin-top: 16px;
}
.panel-ink {
  background: var(--ink); color: var(--on-ink); border-radius: var(--radius); padding: 24px 24px;
}
.panel-ink p + p { margin-top: 10px; }
.panel-ink .muted { color: var(--on-ink-muted); }
.panel-line {
  border: 1px solid var(--paper-line); border-radius: var(--radius); padding: 24px; background: var(--paper);
}
.panel-line p + p { margin-top: 10px; }
.mark-sq {
  display: inline-block; flex-shrink: 0; width: 12px; height: 12px; background: var(--green-on-ink);
  margin-right: 10px; vertical-align: 1px;
}
.panel-line .mark-sq { background: var(--green); }

@media (max-width: 1000px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .how-foot { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .steps { grid-template-columns: 1fr; }
}

/* ---------- what it builds ---------- */
.spec {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px; margin-bottom: 48px;
}
.spec-card {
  background: var(--ink-2); border: 1px solid var(--ink-line); border-radius: var(--radius); padding: 24px;
}
.spec-card h3 { margin: 6px 0 10px; font-size: 22px; }
.spec-card p { color: var(--on-ink-muted); }
.spec-card p + p { margin-top: 10px; }
.spec-card .hl { color: var(--green-on-ink); }

.ref-head { max-width: 760px; margin-bottom: 20px; }
.ref-head h3 { font-size: 24px; margin-bottom: 10px; }
.ref-head p { color: var(--on-ink-muted); }

.cards {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px;
}
.cards li {
  border: 1px solid var(--ink-line); border-radius: var(--radius); padding: 18px 20px; background: var(--ink-2);
}
.cards li strong { display: block; font-size: 17px; margin-bottom: 4px; }
.cards li span { color: var(--on-ink-muted); font-size: 15.5px; }

.chips-block { margin-top: 44px; }
.chips-block + .chips-block { margin-top: 28px; }
.chips-block .eyebrow { margin-bottom: 12px; }
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li {
  border: 1px solid #3a414a; border-radius: 999px; padding: 6px 14px; font-size: 15px; color: var(--on-ink);
}
.note { margin-top: 28px; font-size: 14.5px; color: var(--on-ink-muted); max-width: 80ch; }
.on-paper .note { color: var(--grey); }

@media (max-width: 900px) {
  .spec { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
}

/* ---------- pilot ---------- */
.phases {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px;
}
/* pilot phases, in the belt's row language */
.phase {
  position: relative; display: flex; flex-wrap: wrap; justify-content: space-between;
  align-items: baseline; align-content: flex-start; gap: 6px 12px;
  background: var(--paper-card); border: 1.5px solid var(--green); border-radius: 9px; padding: 16px 18px;
}
.phase:not(:last-child)::after {
  content: ""; position: absolute; top: 50%; right: -17.5px; width: 16px; height: 2px; background: #7c848e;
}
.phase h3 { margin: 0; font-size: 19px; }
.phase p { flex-basis: 100%; font-size: 16px; color: #2f343a; }
.phase.main { background: var(--ink); color: var(--on-ink); }
.phase.main p { color: var(--on-ink-muted); }
.phase.main .tag { color: var(--green-on-ink); }

.give-get {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px;
}
.give-get .box {
  background: var(--paper-card); border: 1px solid var(--paper-line); border-radius: var(--radius); padding: 24px;
}
.ticks { list-style: none; margin: 12px 0 0; padding: 0; }
.ticks li { position: relative; padding-left: 24px; margin-top: 8px; font-size: 17px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .5em; width: 11px; height: 11px; background: var(--green);
}
.pilot-cta { margin-top: 24px; }

@media (max-width: 900px) {
  .phases { grid-template-columns: 1fr; }
  .give-get { grid-template-columns: 1fr; }
  .phase:not(:last-child)::after { top: auto; right: auto; left: 24px; bottom: -17.5px; width: 2px; height: 16px; }
}

/* ---------- contact ---------- */
.contact .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.contact .company-mark { height: 34px; width: auto; margin-bottom: 28px; }
.contact h2 { margin-bottom: 16px; }
.mail-card {
  background: var(--paper); color: var(--ink); border-radius: 14px; padding: 28px;
}
.mail-card .label { font-family: var(--mono); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--green-text); font-weight: 600; }
.mail-card a.mail {
  display: inline-block; margin-top: 10px; font-size: clamp(18px, 4.9vw, 28px); font-weight: 700;
  color: var(--green-text); text-decoration: none; overflow-wrap: anywhere;
}
.mail-card a.mail:hover { text-decoration: underline; }
.mail-card a.mail:focus-visible { outline-color: var(--green-text); }
.mail-card .who { margin-top: 14px; color: var(--grey); }
@media (max-width: 860px) {
  .contact .wrap { grid-template-columns: 1fr; gap: 28px; }
}

/* ---------- footer ---------- */
.site-footer { background: var(--ink-3); color: var(--on-ink-muted); padding: 48px 0 36px; font-size: 14.5px; border-top: 1px solid var(--ink-line); }
.site-footer .wrap { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; }
.legal { font-style: normal; }
.legal .brand-line { color: var(--on-ink); font-weight: 650; font-size: 15.5px; margin-bottom: 8px; }
.legal p + p { margin-top: 4px; }
.foot-links { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.foot-links a { color: var(--on-ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: #4a525c; }
.foot-links a:hover { text-decoration-color: var(--on-ink); }
.copy { grid-column: 1 / -1; border-top: 1px solid var(--ink-line); padding-top: 18px; margin-top: 4px; font-size: 13.5px; }
@media (max-width: 760px) {
  .site-footer .wrap { grid-template-columns: 1fr; }
}

/* ---------- legal page (privacy) ---------- */
.legal-page { padding: 56px 0 88px; }
.legal-page .wrap { max-width: 800px; }
.legal-page h1 { font-size: clamp(32px, 4.4vw, 46px); margin-bottom: 8px; }
.legal-page .updated { color: var(--grey); font-size: 15px; margin-bottom: 32px; }
.legal-page h2 { font-size: 22px; margin: 36px 0 12px; letter-spacing: 0; }
.legal-page p, .legal-page li { color: #262a30; }
.legal-page p + p { margin-top: 12px; }
.legal-page ul { padding-left: 22px; margin: 12px 0 0; }
.legal-page li + li { margin-top: 8px; }
.legal-page a { color: var(--green-text); }
.legal-page .back { margin-top: 44px; }
.legal-page .back a { font-weight: 650; }

/* ---------- 404 ---------- */
.not-found { min-height: 60vh; display: flex; align-items: center; }
.not-found p { margin-top: 16px; color: var(--on-ink-muted); }