/* =========================================================
   BORON LETTERS — Direct-Response Sales Letter
   Design: 1984 direct-mail flyer ✕ serious editorial essay.
   ========================================================= */

:root {
  --paper:       #f2ede0;
  --paper-deep:  #e8e1d0;
  --paper-fold:  #ded5bf;
  --ink:         #171412;
  --ink-soft:    #3a322c;
  --ink-faded:   #6b5f52;
  --rule:        #c8bda3;
  --rule-soft:   #d8cfb8;

  --accent:      #8b2a1f;   /* oxblood — the direct-mail red */
  --accent-deep: #6a1f17;
  --accent-ink:  #f6eadc;
  --highlight:   #f5d17e;   /* pale legal-pad yellow for marker */

  --stamp:       #204c3b;   /* post-office stamp green */

  --serif-display: "Playfair Display", "Crimson Pro", Georgia, serif;
  --serif-body:    "Crimson Pro", "Source Serif Pro", Georgia, serif;
  --typewriter:    "Special Elite", "Courier Prime", ui-monospace, monospace;
  --script:        "Caveat", "Dancing Script", cursive;

  --col-narrow:  38rem;
  --col-body:    42rem;
  --col-wide:    58rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif-body);
  font-size: 19px;
  line-height: 1.58;
  font-feature-settings: "liga" 1, "kern" 1, "onum" 1;
  padding-bottom: 96px; /* leave room for sticky CTA */
  position: relative;
  overflow-x: hidden;
}

/* Paper grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(rgba(23,20,18,0.035) 1px, transparent 1px),
    radial-gradient(rgba(23,20,18,0.025) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
  mix-blend-mode: multiply;
  opacity: 0.9;
}

/* Subtle vignette like an old printed page */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(50,38,25,0.18) 100%);
}

main, header, footer, .wrap { position: relative; z-index: 2; }

/* =========================================================
   LAYOUT SCAFFOLDING
   ========================================================= */

.wrap {
  max-width: var(--col-body);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.wrap--wide { max-width: var(--col-wide); }
.wrap--narrow { max-width: var(--col-narrow); }

/* =========================================================
   POSTAL MASTHEAD
   ========================================================= */

.masthead {
  border-bottom: 3px double var(--ink);
  padding: 1.25rem 0 1rem;
  background: var(--paper);
}

.masthead__inner {
  max-width: var(--col-wide);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

.masthead__mark {
  font-family: var(--typewriter);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faded);
}

.masthead__title {
  text-align: center;
  font-family: var(--serif-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.masthead__title a { color: inherit; text-decoration: none; }

.masthead__stamp {
  justify-self: end;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 0.3rem 0.55rem;
  border: 2px solid var(--stamp);
  color: var(--stamp);
  font-family: var(--typewriter);
  font-size: 0.62rem;
  line-height: 1.1;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: rotate(-4deg);
  background: rgba(255,255,255,0.3);
}

.masthead__stamp strong { font-size: 0.9rem; letter-spacing: 0; }

/* =========================================================
   HERO / HEADLINE BLOCK
   ========================================================= */

.hero {
  padding: 3.2rem 0 2rem;
  text-align: left;
}

.hero__kicker {
  font-family: var(--typewriter);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin: 0 0 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--rule);
}

.hero__preheadline {
  font-style: italic;
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 0 0 1.1rem;
  max-width: 34rem;
}

.hero__headline {
  font-family: var(--serif-display);
  font-weight: 900;
  font-size: clamp(2.25rem, 5.2vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  margin: 0 0 1.4rem;
  color: var(--ink);
}

.hero__headline em {
  font-style: italic;
  color: var(--accent);
  font-weight: 800;
}

.hero__deck {
  font-size: 1.2rem;
  line-height: 1.5;
  font-style: italic;
  color: var(--ink-soft);
  margin: 0 0 1.6rem;
  max-width: 36rem;
  padding-left: 1.1rem;
  border-left: 3px solid var(--accent);
}

.hero__meta {
  font-family: var(--typewriter);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.hero__meta span::before {
  content: "·";
  margin-right: 0.5rem;
  color: var(--accent);
}

.hero__meta span:first-child::before { content: ""; margin: 0; }

/* =========================================================
   LETTER BODY
   ========================================================= */

.letter {
  padding: 1rem 0 2rem;
}

.letter p,
.letter ul,
.letter ol,
.letter blockquote,
.letter .pull {
  max-width: var(--col-body);
}

.letter p {
  margin: 0 0 1.1em;
  font-size: 1.06rem;
  line-height: 1.6;
}

.letter p.lead {
  font-size: 1.3rem;
  line-height: 1.5;
  margin-bottom: 1.4rem;
}

.letter p.lead::first-letter {
  font-family: var(--serif-display);
  font-weight: 900;
  float: left;
  font-size: 4.6rem;
  line-height: 0.85;
  margin: 0.35rem 0.55rem 0 -0.05rem;
  color: var(--accent);
}

.letter p strong { color: var(--ink); }

.letter a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.letter a:hover { color: var(--accent-deep); text-decoration-thickness: 2px; }

.letter ul, .letter ol { margin: 0 0 1.3em; padding-left: 1.4rem; }
.letter li { margin-bottom: 0.4em; }

.letter h2 {
  font-family: var(--serif-display);
  font-weight: 800;
  font-size: 1.9rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 2.8rem 0 1rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--rule);
}

.letter h2 .num {
  font-family: var(--typewriter);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.4rem;
  font-weight: normal;
}

.letter h3 {
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 1.3rem;
  margin: 1.7rem 0 0.6rem;
}

.letter h3.typewriter {
  font-family: var(--typewriter);
  font-weight: normal;
  font-size: 0.88rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 2rem 0 0.8rem;
}

.letter .marker {
  background-image: linear-gradient(transparent 58%, var(--highlight) 58%, var(--highlight) 92%, transparent 92%);
  padding: 0 0.05em;
}

.letter .under {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* Inline bold "shout" — keep legible, avoid caps lock unless deliberate */
.letter .shout {
  font-weight: 800;
  color: var(--accent-deep);
}

/* =========================================================
   PULL QUOTES / MARGIN NOTES / CALLOUTS
   ========================================================= */

.pull {
  margin: 2rem auto;
  padding: 1.6rem 1.8rem;
  background: var(--paper-deep);
  border-left: 5px solid var(--accent);
  border-right: 1px solid var(--rule);
  font-family: var(--serif-display);
  font-size: 1.35rem;
  font-style: italic;
  line-height: 1.35;
  color: var(--ink);
  position: relative;
}

.pull::before {
  content: "“";
  position: absolute;
  top: -0.3rem;
  left: 0.9rem;
  font-family: var(--serif-display);
  font-size: 4rem;
  color: var(--accent);
  opacity: 0.35;
  line-height: 1;
}

.pull cite {
  display: block;
  font-style: normal;
  font-family: var(--typewriter);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin-top: 0.8rem;
}

.margin-note {
  display: block;
  margin: 1.3rem 0;
  padding: 0.8rem 1rem;
  border: 1px dashed var(--rule);
  background: rgba(255,255,255,0.25);
  font-family: var(--typewriter);
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.margin-note::before {
  content: "— memo —";
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

/* =========================================================
   PROOF / CASE BLOCKS
   ========================================================= */

.cases {
  margin: 2.5rem 0;
  display: grid;
  gap: 1.5rem;
}

.case {
  background: rgba(255,255,255,0.45);
  border: 1px solid var(--rule);
  padding: 1.4rem 1.5rem 1.2rem;
  position: relative;
}

.case::before {
  content: attr(data-label);
  position: absolute;
  top: -0.65rem;
  left: 1rem;
  background: var(--paper);
  padding: 0 0.5rem;
  font-family: var(--typewriter);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.case h4 {
  margin: 0.2rem 0 0.6rem;
  font-family: var(--serif-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.case .stat {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dotted var(--rule);
}

.case .stat > div {
  text-align: left;
}

.case .stat strong {
  display: block;
  font-family: var(--serif-display);
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--accent);
  line-height: 1;
}

.case .stat span {
  font-family: var(--typewriter);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faded);
  display: block;
  margin-top: 0.3rem;
}

/* =========================================================
   THE OFFER BLOCK
   ========================================================= */

.offer {
  margin: 3rem 0;
  padding: 2rem 1.8rem 2.2rem;
  background: var(--ink);
  color: var(--paper);
  position: relative;
  border: 3px solid var(--ink);
  outline: 1px solid var(--ink);
  outline-offset: -10px;
}

.offer::before {
  content: "★  THE OFFER  ★";
  position: absolute;
  top: -0.9rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--paper);
  padding: 0.3rem 0.9rem;
  font-family: var(--typewriter);
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  font-weight: bold;
}

.offer h2 {
  border: 0;
  padding: 0;
  margin: 0.4rem 0 1rem;
  font-family: var(--serif-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  text-transform: none;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.offer h2 .num { color: var(--highlight); }

.offer p { color: #f2e7d6; max-width: none; font-size: 1.05rem; }
.offer strong { color: var(--highlight); }

.offer__price {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  margin: 1rem 0;
  border-top: 1px solid #55483d;
  border-bottom: 1px solid #55483d;
}

.offer__price .amount {
  font-family: var(--serif-display);
  font-size: 3.6rem;
  font-weight: 900;
  color: var(--highlight);
  line-height: 1;
}

.offer__price .terms {
  font-family: var(--typewriter);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #d9c8b0;
  line-height: 1.4;
}

/* =========================================================
   THE GUARANTEE — loud, unambiguous
   ========================================================= */

.guarantee {
  margin: 3rem auto;
  max-width: var(--col-body);
  border: 4px double var(--accent);
  padding: 1.8rem 1.9rem;
  background:
    repeating-linear-gradient(
      -45deg,
      transparent 0 16px,
      rgba(139,42,31,0.04) 16px 32px
    ),
    var(--paper);
  position: relative;
}

.guarantee::before {
  content: "MY GUARANTEE TO YOU";
  position: absolute;
  top: -0.9rem;
  left: 1.2rem;
  background: var(--paper);
  color: var(--accent);
  padding: 0 0.7rem;
  font-family: var(--typewriter);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  font-weight: bold;
}

.guarantee h3 {
  margin: 0 0 0.7rem;
  font-family: var(--serif-display);
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--accent-deep);
}

.guarantee p { margin: 0 0 0.7rem; font-size: 1.05rem; }
.guarantee p:last-child { margin-bottom: 0; }

.guarantee .seal {
  float: right;
  margin: -0.6rem -0.6rem 0.6rem 1rem;
  width: 120px;
  height: 120px;
  display: grid;
  place-content: center;
  border: 3px solid var(--accent);
  border-radius: 50%;
  color: var(--accent-deep);
  font-family: var(--serif-display);
  font-weight: 800;
  font-size: 1rem;
  text-align: center;
  line-height: 1.05;
  transform: rotate(-8deg);
  background: rgba(255,255,255,0.5);
  position: relative;
}

.guarantee .seal::before,
.guarantee .seal::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px dashed var(--accent);
  border-radius: 50%;
  opacity: 0.6;
}

.guarantee .seal::after {
  inset: 12px;
  border-style: dotted;
}

.guarantee .seal span {
  display: block;
  font-family: var(--typewriter);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  margin-top: 0.2rem;
  color: var(--ink);
}

/* =========================================================
   CTA BUTTONS
   ========================================================= */

.cta {
  display: inline-block;
  background: var(--accent);
  color: var(--paper);
  font-family: var(--serif-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 1rem 1.6rem;
  border: 2px solid var(--accent-deep);
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform 80ms ease, box-shadow 80ms ease;
  cursor: pointer;
}

.cta:hover {
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 var(--ink);
  color: var(--paper);
  text-decoration: none;
}

.cta:active {
  transform: translate(2px,2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.cta--ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 4px 4px 0 var(--rule);
}
.cta--ghost:hover { color: var(--accent-deep); box-shadow: 6px 6px 0 var(--rule); }

.cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin: 1.5rem 0;
}

.cta-row .side {
  font-family: var(--typewriter);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faded);
  max-width: 14rem;
  line-height: 1.4;
}

/* =========================================================
   FIT LISTS (who this is for / not for)
   ========================================================= */

.fit {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin: 2rem 0;
}

.fit__col {
  background: rgba(255,255,255,0.35);
  border: 1px solid var(--rule);
  padding: 1.2rem 1.3rem;
}

.fit__col h4 {
  margin: 0 0 0.7rem;
  font-family: var(--typewriter);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.fit__col.yes h4 { color: var(--stamp); }
.fit__col.no  h4 { color: var(--accent); }

.fit__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.fit__col li {
  padding: 0.45rem 0 0.45rem 1.6rem;
  border-bottom: 1px dotted var(--rule);
  font-size: 0.98rem;
  line-height: 1.4;
  position: relative;
}

.fit__col li:last-child { border-bottom: 0; }

.fit__col.yes li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--stamp);
  font-weight: bold;
}

.fit__col.no li::before {
  content: "✗";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* =========================================================
   SIGNATURE BLOCK
   ========================================================= */

.signoff {
  margin: 2.8rem 0 1.5rem;
}

.signoff p { margin: 0; font-size: 1.05rem; }

.signoff .sig {
  font-family: var(--script);
  font-size: 3rem;
  color: var(--accent-deep);
  line-height: 1;
  margin: 0.8rem 0 0.3rem;
  letter-spacing: -0.01em;
}

.signoff .printed {
  font-family: var(--typewriter);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faded);
}

/* =========================================================
   P.S. BLOCK WITH EMAIL CAPTURE
   ========================================================= */

.ps {
  margin: 3rem 0;
  padding: 1.8rem 1.9rem;
  background: var(--paper-deep);
  border-top: 2px dashed var(--accent);
  border-bottom: 2px dashed var(--accent);
  position: relative;
}

.ps h3 {
  font-family: var(--typewriter);
  font-size: 1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.8rem;
}

.ps h3 .big {
  font-family: var(--serif-display);
  font-size: 2.4rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-right: 0.4rem;
  font-weight: 900;
  vertical-align: -4px;
}

.ps p { margin: 0 0 1rem; }

.capture {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: stretch;
  margin-top: 1rem;
}

.capture input[type="email"] {
  flex: 1 1 18rem;
  padding: 0.95rem 1rem;
  border: 2px solid var(--ink);
  background: var(--paper);
  font-family: var(--typewriter);
  font-size: 1rem;
  color: var(--ink);
  border-radius: 0;
}

.capture input[type="email"]::placeholder {
  color: var(--ink-faded);
  font-style: italic;
}

.capture input[type="email"]:focus {
  outline: 3px solid var(--highlight);
  outline-offset: -2px;
}

.capture button {
  flex: 0 0 auto;
  padding: 0.95rem 1.4rem;
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--ink);
  font-family: var(--serif-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  border-radius: 0;
  transition: background 100ms ease;
}

.capture button:hover { background: var(--accent); border-color: var(--accent); }

.capture__note {
  margin-top: 0.6rem;
  font-family: var(--typewriter);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ink-faded);
}

.pps {
  margin-top: 1.4rem;
  font-size: 0.98rem;
  font-style: italic;
  color: var(--ink-soft);
}

.pps strong {
  font-family: var(--typewriter);
  font-style: normal;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-size: 0.85em;
  margin-right: 0.4em;
}

/* =========================================================
   STICKY MOBILE CTA BAR
   ========================================================= */

.stickybar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 50;
  background: var(--accent);
  color: var(--paper);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  border-top: 3px solid var(--ink);
  box-shadow: 0 -10px 20px rgba(0,0,0,0.2);
}

.stickybar__text {
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.2;
  flex: 1 1 auto;
}

.stickybar__text small {
  display: block;
  font-family: var(--typewriter);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  opacity: 0.85;
  margin-top: 0.2rem;
}

.stickybar a.stickybar__cta {
  flex: 0 0 auto;
  background: var(--paper);
  color: var(--accent-deep);
  font-family: var(--serif-display);
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.6rem 1rem;
  text-decoration: none;
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
}

.stickybar a.stickybar__cta:hover {
  background: var(--highlight);
}

/* =========================================================
   FOOTER
   ========================================================= */

.footer {
  border-top: 3px double var(--ink);
  margin-top: 4rem;
  padding: 2rem 0 1rem;
  font-family: var(--typewriter);
  font-size: 0.78rem;
  color: var(--ink-faded);
  letter-spacing: 0.04em;
}

.footer__inner {
  max-width: var(--col-wide);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer a { color: var(--ink); text-decoration: underline; }
.footer a:hover { color: var(--accent); }

/* =========================================================
   TABLE-OF-CONTENTS / PAGE NAV
   ========================================================= */

.pagenav {
  margin: 1.8rem 0;
  padding: 1rem 1.2rem;
  border: 1px dashed var(--rule);
  background: rgba(255,255,255,0.3);
  font-family: var(--typewriter);
  font-size: 0.85rem;
}

.pagenav h4 {
  margin: 0 0 0.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}

.pagenav ol {
  margin: 0;
  padding-left: 1.2rem;
  list-style-position: inside;
  padding: 0;
  list-style: none;
  counter-reset: nav;
}

.pagenav li {
  counter-increment: nav;
  padding: 0.25rem 0;
  border-bottom: 1px dotted var(--rule);
}
.pagenav li:last-child { border-bottom: 0; }

.pagenav li::before {
  content: counter(nav, decimal-leading-zero) ".";
  color: var(--accent);
  margin-right: 0.6rem;
  font-weight: bold;
}

.pagenav a {
  color: var(--ink);
  text-decoration: none;
}
.pagenav a:hover { color: var(--accent); text-decoration: underline; }

/* =========================================================
   FAQ
   ========================================================= */

.faq details {
  border-bottom: 1px solid var(--rule);
  padding: 0.9rem 0;
}

.faq details[open] { background: rgba(255,255,255,0.3); }

.faq summary {
  cursor: pointer;
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 1.1rem;
  list-style: none;
  position: relative;
  padding-left: 2rem;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::before {
  content: "+";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--typewriter);
  font-size: 1.4rem;
  color: var(--accent);
  line-height: 1;
}

.faq details[open] summary::before { content: "−"; }

.faq details p { margin: 0.8rem 0 0.4rem; padding-left: 2rem; }

/* =========================================================
   LETTERS INDEX (letters.html)
   ========================================================= */

.letter-card {
  border-top: 1px solid var(--rule);
  padding: 2.2rem 0 1.2rem;
}

.letter-card:first-of-type { border-top: 0; }

.letter-card__meta {
  font-family: var(--typewriter);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faded);
  margin-bottom: 0.6rem;
}

.letter-card__meta .no { color: var(--accent); }

.letter-card h2 {
  border: 0;
  padding: 0;
  margin: 0 0 1rem;
  font-family: var(--serif-display);
  font-size: 1.8rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.letter-card .sig {
  font-family: var(--script);
  font-size: 2rem;
  color: var(--accent-deep);
  margin: 1rem 0 0;
  line-height: 1;
}

/* =========================================================
   THANK YOU
   ========================================================= */

.thanks {
  text-align: center;
  padding: 4rem 0 2rem;
}

.thanks h1 {
  font-family: var(--serif-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 6vw, 4rem);
  margin: 0 0 1rem;
  letter-spacing: -0.015em;
}

.thanks h1 em { font-style: italic; color: var(--accent); }

.thanks .kicker {
  font-family: var(--typewriter);
  font-size: 0.88rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--stamp);
  margin-bottom: 1rem;
}

.thanks p { font-size: 1.2rem; max-width: 32rem; margin: 0 auto 1.2rem; }

.thanks .checklist {
  text-align: left;
  max-width: 28rem;
  margin: 2rem auto;
  list-style: none;
  padding: 0;
}
.thanks .checklist li {
  padding: 0.7rem 0 0.7rem 2rem;
  border-bottom: 1px dotted var(--rule);
  position: relative;
}
.thanks .checklist li::before {
  content: "☐";
  position: absolute;
  left: 0.2rem;
  top: 0.6rem;
  color: var(--accent);
  font-size: 1.3rem;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 48rem) {
  body { font-size: 18px; padding-bottom: 110px; }

  .masthead__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 0.6rem;
  }
  .masthead__mark, .masthead__stamp { justify-self: center; }

  .letter p.lead { font-size: 1.15rem; }
  .letter p.lead::first-letter { font-size: 3.6rem; }

  .hero__headline { font-size: clamp(2rem, 8vw, 2.6rem); }
  .hero__deck { font-size: 1.05rem; }

  .pull { font-size: 1.1rem; padding: 1.2rem 1.2rem 1.2rem 1.4rem; }

  .offer { padding: 1.6rem 1.2rem 1.8rem; }
  .offer__price { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
  .offer__price .amount { font-size: 2.8rem; }

  .guarantee { padding: 1.3rem 1.3rem; }
  .guarantee .seal {
    float: none;
    margin: 0 auto 1rem;
    width: 100px;
    height: 100px;
  }

  .fit { grid-template-columns: 1fr; }
  .case .stat { grid-template-columns: 1fr; text-align: left; }

  .capture { flex-direction: column; }
  .capture button { width: 100%; }

  .cta { font-size: 1.05rem; padding: 0.9rem 1.2rem; }
}

@media (min-width: 48rem) {
  /* On desktop: hide the sticky bar; the page has plenty of CTAs */
  .stickybar { display: none; }
  body { padding-bottom: 0; }
}

/* =========================================================
   PRINT (because a direct-mail letter should print well)
   ========================================================= */

@media print {
  body { background: #fff; color: #000; padding: 0; }
  body::before, body::after, .stickybar { display: none !important; }
  .offer { background: #fff; color: #000; border-color: #000; outline-color: #000; }
  .offer h2, .offer strong, .offer__price .amount { color: #000; }
  .cta { background: #fff; color: #000; border: 2px solid #000; box-shadow: none; }
  a { color: #000; text-decoration: underline; }
}