/* ============================================================
   Production Soup — "The Receipt" design system (2026-07)
   AI Referral Marketing repositioning. Editorial paper + ink.
   Fonts: Fraunces (display) · Newsreader (body) · IBM Plex Mono (labels/receipts)
   ============================================================ */

:root {
  --paper: #f6f1e7;
  --paper-deep: #ece5d5;
  --ink: #171310;
  --ink-soft: #45403a;
  --muted: #857c6e;
  --line: rgba(23, 19, 16, 0.16);
  --line-soft: rgba(23, 19, 16, 0.09);
  --green: #0c5a45;
  --green-deep: #08432f;
  --green-bright: #178a63;
  --copper: #b25f2f;
  --alert: #b23a2a;
  --card-dark: #14110d;
  --card-dark-2: #1d1913;
  --paper-on-dark: #efe7d7;
  --muted-on-dark: #9a907f;
  --display: 'Fraunces', Georgia, serif;
  --body: 'Newsreader', Georgia, serif;
  --mono: 'IBM Plex Mono', 'SF Mono', Menlo, monospace;
  --max: 1180px;
  --r: 6px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.11rem;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  /* paper grain */
  background-image:
    radial-gradient(rgba(23,19,16,0.028) 1px, transparent 1px);
  background-size: 3px 3px;
}
::selection { background: var(--green); color: var(--paper); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
@media (max-width: 640px) { .wrap { padding: 0 20px; } }

/* ---------- type ---------- */
h1, h2, h3 { font-family: var(--display); font-weight: 560; letter-spacing: -0.015em; line-height: 1.06; color: var(--ink); }
h1 { font-size: clamp(2.5rem, 5.4vw, 4.35rem); font-variation-settings: "opsz" 72; }
h2 { font-size: clamp(1.85rem, 3.4vw, 2.7rem); font-variation-settings: "opsz" 40; }
h3 { font-size: 1.32rem; line-height: 1.25; }
p  { color: var(--ink-soft); }
a  { color: var(--green); text-decoration: none; }
strong { color: var(--ink); font-weight: 640; }
em.accent { font-style: italic; color: var(--green); }

.eyebrow {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--copper);
  display: flex; align-items: center; gap: 12px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--copper); }

.lede { font-size: clamp(1.14rem, 1.7vw, 1.3rem); line-height: 1.58; color: var(--ink-soft); }

/* underline sweep on inline links */
.link-sweep { position: relative; color: var(--ink); font-weight: 560; }
.link-sweep::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1.5px;
  width: 100%; background: var(--green); transform: scaleX(0.35); transform-origin: left;
  transition: transform 0.28s cubic-bezier(0.6, 0, 0.2, 1);
}
.link-sweep:hover::after { transform: scaleX(1); }

/* ---------- nav ---------- */
nav.ps-nav {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.ps-nav-inner { max-width: var(--max); margin: 0 auto; padding: 16px 28px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.nav-logo { display: flex; align-items: center; gap: 11px; color: var(--ink); font-family: var(--display); font-weight: 600; font-size: 1.12rem; letter-spacing: -0.01em; }
.nav-logo .logo-mark { width: 30px; height: 30px; display: grid; place-items: center; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); transition: color 0.18s; }
.nav-links a:hover { color: var(--ink); }
.nav-links a.primary {
  color: var(--paper); background: var(--ink); padding: 10px 16px; border-radius: var(--r);
  transition: background 0.2s, transform 0.2s;
}
.nav-links a.primary:hover { background: var(--green-deep); transform: translateY(-1px); }
@media (max-width: 860px) { .nav-links a:not(.primary) { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 0.8rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 16px 24px; border-radius: var(--r); border: 1px solid transparent;
  cursor: pointer; transition: background 0.2s, transform 0.2s, border-color 0.2s;
}
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-ink:hover { background: var(--green-deep); transform: translateY(-1.5px); }
.btn-green { background: var(--green); color: var(--paper); }
.btn-green:hover { background: var(--green-deep); transform: translateY(-1.5px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-on-dark { background: var(--paper); color: var(--ink); }
.btn-on-dark:hover { background: #fff; transform: translateY(-1.5px); }
.btn-note { font-family: var(--mono); font-size: 0.71rem; color: var(--muted); letter-spacing: 0.05em; margin-top: 12px; }

/* ---------- the receipt card (signature element) ---------- */
.receipt {
  background: var(--card-dark); color: var(--paper-on-dark);
  border-radius: 10px; padding: 26px 26px 22px;
  font-family: var(--mono); font-size: 0.86rem; line-height: 1.75;
  box-shadow: 0 24px 60px -18px rgba(23, 19, 16, 0.45), 0 4px 14px rgba(23, 19, 16, 0.18);
  border: 1px solid rgba(239, 231, 215, 0.08);
  position: relative;
}
.receipt-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted-on-dark); border-bottom: 1px dashed rgba(239,231,215,0.18);
  padding-bottom: 12px; margin-bottom: 16px;
}
.receipt-head .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green-bright); display: inline-block; margin-right: 7px; animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }
.receipt .q { color: var(--paper-on-dark); }
.receipt .q::before { content: "> "; color: var(--green-bright); }
.receipt .cursor { display: inline-block; width: 8px; height: 15px; background: var(--green-bright); vertical-align: -2px; margin-left: 2px; animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.receipt ol { list-style: none; margin: 14px 0 0; counter-reset: r; }
.receipt ol li { counter-increment: r; padding: 7px 0; border-bottom: 1px solid rgba(239,231,215,0.07); display: flex; gap: 14px; align-items: baseline; }
.receipt ol li::before { content: counter(r, decimal-leading-zero); color: var(--muted-on-dark); font-size: 0.72rem; }
.receipt ol li .named { color: var(--muted-on-dark); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; margin-left: auto; }
.receipt ol li.you { border-bottom: none; margin-top: 6px; padding-top: 14px; border-top: 1px dashed rgba(178,58,42,0.5); }
.receipt ol li.you::before { content: "—"; color: var(--alert); }
.receipt ol li.you, .receipt ol li.you .named { color: #d98273; }
.receipt-foot { margin-top: 16px; padding-top: 12px; border-top: 1px dashed rgba(239,231,215,0.18); font-size: 0.68rem; color: var(--muted-on-dark); letter-spacing: 0.06em; }

/* ---------- sections ---------- */
section.ps { padding: 96px 0; }
section.ps.tight { padding: 72px 0; }
.sec-head { display: flex; align-items: baseline; gap: 20px; margin-bottom: 48px; }
.sec-num { font-family: var(--mono); font-size: 0.78rem; color: var(--copper); letter-spacing: 0.15em; white-space: nowrap; }
.sec-head h2 { max-width: 720px; }
.rule { border: none; border-top: 1px solid var(--line-soft); }

/* dark band */
.band-dark { background: var(--card-dark); color: var(--paper-on-dark); }
.band-dark h2, .band-dark h3 { color: var(--paper-on-dark); }
.band-dark p { color: var(--muted-on-dark); }
.band-dark .eyebrow { color: var(--green-bright); }
.band-dark .eyebrow::before { background: var(--green-bright); }

/* ---------- ladder cards ---------- */
.ladder { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
@media (max-width: 900px) { .ladder { grid-template-columns: 1fr; } }
.rung {
  background: #fffdf8; border: 1px solid var(--line); border-radius: 10px;
  padding: 30px 28px; display: flex; flex-direction: column; gap: 14px;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
  position: relative;
}
.rung:hover { transform: translateY(-4px); box-shadow: 0 18px 44px -18px rgba(23,19,16,0.28); border-color: var(--ink); }
.rung .step { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--copper); }
.rung .price { font-family: var(--display); font-size: 2rem; font-weight: 560; color: var(--ink); letter-spacing: -0.02em; }
.rung .price small { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); letter-spacing: 0.08em; margin-left: 6px; }
.rung p { font-size: 1rem; line-height: 1.58; }
.rung ul { list-style: none; margin-top: 4px; }
.rung ul li { padding: 8px 0 8px 22px; position: relative; font-size: 0.97rem; color: var(--ink-soft); border-top: 1px solid var(--line-soft); }
.rung ul li::before { content: "→"; position: absolute; left: 0; color: var(--green); font-family: var(--mono); font-size: 0.8rem; }
.rung .rung-cta { margin-top: auto; padding-top: 18px; }
.rung.featured { background: var(--green-deep); border-color: var(--green-deep); }
.rung.featured, .rung.featured .price, .rung.featured strong { color: var(--paper-on-dark); }
.rung.featured .step { color: #d9a06b; }
.rung.featured p, .rung.featured ul li { color: rgba(239, 231, 215, 0.82); }
.rung.featured ul li { border-top-color: rgba(239,231,215,0.14); }
.rung.featured ul li::before { color: #7fd0ab; }
.rung.featured .price small { color: rgba(239,231,215,0.6); }
.rung.featured:hover { border-color: var(--green-deep); }

/* ---------- ledger table ---------- */
.ledger { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fffdf8; }
.ledger-row { display: grid; grid-template-columns: 1.35fr 1fr 1fr; border-top: 1px solid var(--line-soft); }
.ledger-row:first-child { border-top: none; background: var(--paper-deep); }
.ledger-row > div { padding: 18px 22px; font-size: 0.98rem; }
.ledger-row:first-child > div { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.ledger-row .num { font-family: var(--mono); font-size: 0.92rem; color: var(--ink); }
.ledger-row .good { color: var(--green); font-weight: 600; }
@media (max-width: 720px) { .ledger-row { grid-template-columns: 1fr; } .ledger-row > div { padding: 12px 18px; } .ledger-row:first-child { display: none; } }

/* ---------- three moments ---------- */
.moments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
@media (max-width: 860px) { .moments { grid-template-columns: 1fr; gap: 28px; } }
.moment .when { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.moment h3 { margin-bottom: 10px; }
.moment p { font-size: 1rem; }
.moment.now .when { color: var(--green); }
.moment.now { border-left: 2px solid var(--green); padding-left: 22px; margin-left: -24px; }
@media (max-width: 860px) { .moment.now { margin-left: 0; } }

/* ---------- founder note ---------- */
.founder {
  background: #fffdf8; border: 1px solid var(--line); border-radius: 10px;
  padding: clamp(30px, 5vw, 56px); position: relative;
}
.founder blockquote { font-family: var(--display); font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 480; line-height: 1.35; letter-spacing: -0.01em; font-style: italic; color: var(--ink); }
.founder .sig { margin-top: 24px; font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.founder .sig strong { display: block; font-family: var(--display); font-style: normal; text-transform: none; letter-spacing: 0; font-size: 1.05rem; color: var(--ink); margin-bottom: 4px; }

/* ---------- faq ---------- */
.faq details { border-top: 1px solid var(--line-soft); }
.faq details:last-child { border-bottom: 1px solid var(--line-soft); }
.faq summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  padding: 22px 4px; font-family: var(--display); font-size: 1.2rem; font-weight: 560; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--copper); font-size: 1.15rem; transition: transform 0.25s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 4px 24px; max-width: 760px; }

/* ---------- footer ---------- */
footer.ps-footer { background: var(--card-dark); color: var(--muted-on-dark); padding: 64px 0 40px; margin-top: 0; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; max-width: var(--max); margin: 0 auto; padding: 0 28px; }
@media (max-width: 780px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-grid h4 { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--paper-on-dark); margin-bottom: 16px; }
.foot-grid a { display: block; color: var(--muted-on-dark); font-size: 0.95rem; padding: 5px 0; transition: color 0.18s; }
.foot-grid a:hover { color: var(--paper-on-dark); }
.foot-brand { font-family: var(--display); color: var(--paper-on-dark); font-size: 1.2rem; margin-bottom: 12px; }
.foot-brand-note { font-size: 0.95rem; line-height: 1.6; max-width: 340px; }
.foot-legal { max-width: var(--max); margin: 48px auto 0; padding: 24px 28px 0; border-top: 1px solid rgba(239,231,215,0.1); display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; color: var(--muted-on-dark); }
.foot-legal a { color: var(--muted-on-dark); }
.foot-legal a:hover { color: var(--paper-on-dark); }

/* ---------- reveal animation ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(18px); animation: rise 0.8s cubic-bezier(0.2, 0.6, 0.2, 1) forwards; }
  .reveal.d1 { animation-delay: 0.08s; } .reveal.d2 { animation-delay: 0.18s; }
  .reveal.d3 { animation-delay: 0.3s; }  .reveal.d4 { animation-delay: 0.44s; }
  @keyframes rise { to { opacity: 1; transform: none; } }
  .sr { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1); }
  .sr.in { opacity: 1; transform: none; }
}

/* ---------- forms (start page + shared) ---------- */
.field label { display: block; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.field input, .field textarea, .field select {
  width: 100%; background: #fffdf8; border: 1px solid var(--line); border-radius: var(--r);
  padding: 14px 16px; font-family: var(--body); font-size: 1.02rem; color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(12, 90, 69, 0.12); }
.field { margin-bottom: 20px; }