:root {
  --ink: #0d171d;
  --ink-2: #13222b;
  --ink-3: #1b2e38;
  --paper: #f7f2e8;
  --paper-2: #efe7d8;
  --text: #f4efe5;
  --text-dark: #1d2327;
  --muted: #aab7b9;
  --muted-dark: #5d676b;
  --line: rgba(255, 255, 255, .12);
  --line-dark: rgba(29, 35, 39, .12);
  --accent: #d2a75a;
  --accent-strong: #e2b867;
  --accent-dark: #8a6420;
  --accent-ink: #18120a;
  --ok: #7fbf8e;
  --radius: 18px;
  --shadow: 0 30px 70px rgba(0, 0, 0, .35);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1140px;
}

[data-theme="apc"] {
  --ink: #0f1f2a;
  --ink-2: #16293a;
  --ink-3: #1e3a4c;
  --accent: #e0703f;
  --accent-strong: #f08453;
  --accent-dark: #a2441b;
  --accent-ink: #1a0b04;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--ink); color: var(--text); font: 17px/1.65 var(--sans); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.08; letter-spacing: -.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.3rem, 5.2vw, 4rem); }
h2 { font-size: clamp(1.85rem, 3.7vw, 2.85rem); }
h3 { font-size: 1.3rem; line-height: 1.2; }
p { margin: 0 0 1em; }
em { font-style: italic; color: var(--accent-strong); }
.wrap { width: min(var(--wrap), 100% - 40px); margin-inline: auto; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 10px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--accent-strong); outline-offset: 3px; }

.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 700 .76rem/1.3 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; }
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; flex: none; }
.lede { font-size: clamp(1.06rem, 1.6vw, 1.22rem); color: var(--muted); max-width: 640px; }
.muted { color: var(--muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 54px; padding: 0 28px; border-radius: 999px; font: 700 1rem/1.15 var(--sans); text-align: center; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 12px 30px rgba(0, 0, 0, .28); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { border-color: var(--line); color: var(--text); background: rgba(255, 255, 255, .04); }
.btn-ghost:hover { border-color: rgba(255, 255, 255, .32); }
.btn-dark { background: var(--ink); color: var(--text); }
.btn-block { width: 100%; }
.microcopy { font-size: .88rem; color: var(--muted); margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 6px 16px; }
.microcopy span::before { content: "✓ "; color: var(--ok); font-weight: 700; }

/* Header */
.topbar { position: sticky; top: 0; z-index: 40; background: rgba(10, 18, 23, .86); backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid var(--line); }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 800 .78rem/1.15 var(--sans); letter-spacing: .14em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: var(--accent); color: var(--accent-ink); font: 700 .95rem/1 var(--serif); letter-spacing: 0; }
.nav { display: flex; gap: 24px; font-size: .92rem; color: var(--muted); }
.nav a { text-decoration: none; }
.nav a:hover { color: var(--text); }
.topbar .btn { min-height: 42px; padding: 0 18px; font-size: .9rem; box-shadow: none; }
@media (max-width: 880px) { .nav { display: none; } }

/* Hero */
.hero { position: relative; overflow: hidden; padding: clamp(44px, 7vw, 92px) 0 clamp(56px, 8vw, 96px); background: radial-gradient(1000px 520px at 80% 20%, rgba(210, 167, 90, .14), transparent 62%), linear-gradient(180deg, var(--ink-2), var(--ink)); }
[data-theme="apc"] .hero { background: radial-gradient(1000px 520px at 80% 20%, rgba(224, 112, 63, .16), transparent 62%), linear-gradient(180deg, var(--ink-3), var(--ink)); }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(32px, 6vw, 72px); align-items: center; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-visual { position: relative; display: grid; place-items: center; min-height: 440px; }
.price-tag { position: absolute; right: 2%; bottom: 6%; background: var(--paper); color: var(--text-dark); border-radius: 16px; padding: 12px 18px; box-shadow: var(--shadow); font: 600 .8rem/1.3 var(--sans); }
.price-tag b { display: block; font: 800 1.5rem/1.1 var(--sans); }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 0; padding: 12px 0 0; }
  .hero-visual .book { width: min(220px, 56vw); }
  .hero-visual .book-pair .book { width: min(180px, 42vw); }
  .price-tag { right: 6%; bottom: 0; }
}

/* Book mockup */
.book { position: relative; width: min(300px, 58vw); aspect-ratio: 595 / 842; transform: perspective(1500px) rotateY(-18deg) rotateX(3deg); border-radius: 3px 7px 7px 3px; box-shadow: 26px 32px 56px rgba(0, 0, 0, .55), 5px 5px 0 -1px #ebe4d6, 8px 8px 0 -1px #d6ccb9, 11px 11px 0 -1px #ebe4d6; background: #222; }
.book img { width: 100%; height: 100%; object-fit: cover; border-radius: 3px 7px 7px 3px; }
.book::after { content: ""; position: absolute; inset: 0 auto 0 0; width: 16px; border-radius: 3px 0 0 3px; background: linear-gradient(90deg, rgba(255, 255, 255, .24), rgba(0, 0, 0, .3) 60%, rgba(255, 255, 255, .05)); }
.book-pair { position: relative; display: flex; justify-content: center; align-items: flex-start; }
.book-pair .book { width: min(240px, 40vw); }
.book-pair .book + .book { margin-left: -64px; margin-top: 64px; transform: perspective(1500px) rotateY(-12deg) rotateX(3deg); }

/* Trust strip */
.strip { background: var(--ink-2); border-block: 1px solid var(--line); }
.strip ul { list-style: none; margin-block: 0; padding: 22px 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.strip li { display: flex; flex-direction: column; gap: 2px; font-size: .88rem; color: var(--muted); }
.strip b { font: 700 1.3rem/1.15 var(--serif); color: var(--text); }
@media (max-width: 760px) { .strip ul { grid-template-columns: repeat(2, 1fr); } }

/* Sections */
.section { padding: clamp(64px, 9vw, 108px) 0; }
.section-light, .section-alt { color: var(--text-dark); }
.section-light { background: var(--paper); }
.section-alt { background: var(--paper-2); }
.section-light .eyebrow, .section-alt .eyebrow, .section-light em, .section-alt em { color: var(--accent-dark); }
.section-light .lede, .section-alt .lede, .section-light .muted, .section-alt .muted { color: var(--muted-dark); }
.section-head { max-width: 760px; margin-bottom: clamp(30px, 5vw, 50px); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head .lede { margin-bottom: 0; }

.pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.pain { display: flex; gap: 14px; margin: 0; padding: 22px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line-dark); }
.pain::before { content: "—"; color: var(--accent-dark); font-weight: 800; }
.turn { margin: 32px 0 0; padding: 24px 28px; border-left: 4px solid var(--accent); background: rgba(255, 255, 255, .65); border-radius: 0 var(--radius) var(--radius) 0; font: 600 clamp(1.08rem, 2vw, 1.3rem)/1.45 var(--serif); }
@media (max-width: 720px) { .pain-grid { grid-template-columns: 1fr; } }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.card { padding: 28px; border-radius: var(--radius); background: var(--ink-2); border: 1px solid var(--line); }
.section-light .card, .section-alt .card { background: #fff; border-color: var(--line-dark); }
.card-num { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; margin-bottom: 18px; background: rgba(210, 167, 90, .16); color: var(--accent); font: 800 .95rem/1 var(--sans); }
[data-theme="apc"] .card-num { background: rgba(224, 112, 63, .14); }
.section-light .card-num, .section-alt .card-num { color: var(--accent-dark); }
.card p { margin: 0; color: var(--muted); }
.section-light .card p, .section-alt .card p { color: var(--muted-dark); }
.card .tag { display: block; margin-top: 14px; font: 700 .74rem/1.3 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.section-light .card .tag, .section-alt .card .tag { color: var(--accent-dark); }
@media (max-width: 980px) { .cards, .cards.four { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cards, .cards.four { grid-template-columns: 1fr; } }

/* Method */
.method { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.method div { padding: 28px 24px; border-right: 1px solid var(--line); background: var(--ink-2); }
.method div:last-child { border-right: 0; }
.method b { display: block; font: 700 3rem/1 var(--serif); color: var(--accent); margin-bottom: 12px; }
.method strong { display: block; font-size: 1.08rem; }
.method span { color: var(--muted); font-size: .95rem; }
@media (max-width: 760px) {
  .method { grid-template-columns: repeat(2, 1fr); }
  .method div:nth-child(2) { border-right: 0; }
  .method div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

/* Samples */
.samples { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.sample { margin: 0; }
.sample button { display: block; width: 100%; padding: 0; border: 0; background: #fff; border-radius: 10px; overflow: hidden; cursor: zoom-in; box-shadow: 0 18px 40px rgba(0, 0, 0, .18); transition: transform .2s ease; }
.sample button:hover { transform: translateY(-4px); }
.sample img { aspect-ratio: 595 / 842; object-fit: cover; object-position: top; width: 100%; }
.sample figcaption { margin-top: 12px; font-size: .92rem; color: var(--muted-dark); text-align: center; }
@media (max-width: 760px) {
  .samples { grid-template-columns: repeat(3, 74%); overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 4px 14px; }
  .sample { scroll-snap-align: center; }
}
.lightbox { border: 0; padding: 0; background: transparent; max-width: min(760px, 94vw); max-height: 94vh; overflow: visible; }
.lightbox::backdrop { background: rgba(5, 10, 14, .84); }
.lightbox img { max-height: 90vh; width: auto; margin: auto; border-radius: 8px; }
.lightbox button { position: absolute; top: -14px; right: -14px; width: 44px; height: 44px; border-radius: 50%; border: 0; background: #fff; color: #111; font-size: 1.4rem; cursor: pointer; }

/* Table of contents */
.toc { display: grid; gap: 12px; }
.toc details { border-radius: 14px; background: var(--ink-2); border: 1px solid var(--line); }
.toc summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 16px; padding: 18px 22px; font: 700 1.06rem/1.3 var(--serif); }
.toc summary::-webkit-details-marker { display: none; }
.toc summary::after { content: "+"; margin-left: auto; color: var(--accent); font: 400 1.5rem/1 var(--sans); }
.toc details[open] summary::after { content: "−"; }
.toc summary span { color: var(--accent); font: 800 .82rem/1 var(--sans); min-width: 26px; }
.toc ul { margin: 0; padding: 0 22px 20px 64px; color: var(--muted); }
.toc li { margin: 4px 0; }
.extras { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 26px; }
.extra { padding: 20px 22px; border-radius: 14px; border: 1px dashed rgba(210, 167, 90, .5); }
[data-theme="apc"] .extra { border-color: rgba(224, 112, 63, .5); }
.extra b { display: block; margin-bottom: 4px; }
.extra span { color: var(--muted); font-size: .95rem; }
@media (max-width: 720px) { .extras { grid-template-columns: 1fr; } }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.split-media img { border-radius: var(--radius); box-shadow: var(--shadow); }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

/* Fit */
.fit { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.fit > div { padding: 28px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line-dark); }
.fit ul { margin: 0; padding: 0; list-style: none; }
.fit li { padding: 10px 0 10px 30px; position: relative; border-top: 1px solid var(--line-dark); }
.fit li:first-child { border-top: 0; }
.fit .yes li::before { content: "✓"; position: absolute; left: 0; color: #2f7d47; font-weight: 800; }
.fit .no li::before { content: "✕"; position: absolute; left: 0; color: #a34a2f; font-weight: 800; }
@media (max-width: 760px) { .fit { grid-template-columns: 1fr; } }

/* Offer */
.offer { background: radial-gradient(900px 420px at 15% 0%, rgba(210, 167, 90, .12), transparent 60%), var(--ink); }
[data-theme="apc"] .offer { background: radial-gradient(900px 420px at 15% 0%, rgba(224, 112, 63, .12), transparent 60%), var(--ink); }
.offer-grid { display: grid; grid-template-columns: 1fr 440px; gap: clamp(28px, 5vw, 64px); align-items: center; }
.offer-box { padding: 34px; border-radius: 24px; background: var(--paper); color: var(--text-dark); box-shadow: var(--shadow); }
.offer-box .label { font: 800 .74rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted-dark); }
.offer-box h3 { margin: 10px 0 0; }
.price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px; margin: 18px 0 4px; }
.price strong { font: 800 3.1rem/1 var(--sans); letter-spacing: -.03em; }
.price s { color: var(--muted-dark); font-size: 1.1rem; }
.price-note { color: var(--muted-dark); font-size: .92rem; margin-bottom: 20px; }
.offer-box ul { list-style: none; margin: 0 0 24px; padding: 0; }
.offer-box li { padding: 8px 0 8px 28px; position: relative; border-bottom: 1px solid var(--line-dark); }
.offer-box li::before { content: "✓"; position: absolute; left: 0; color: #2f7d47; font-weight: 800; }
.offer-box .btn-primary { box-shadow: none; }
.pay-methods { margin: 14px 0 0; font-size: .84rem; color: var(--muted-dark); text-align: center; }
.guarantee { display: flex; gap: 14px; align-items: flex-start; margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line-dark); font-size: .9rem; color: var(--muted-dark); }
.guarantee p { margin: 0; }
.guarantee b { color: var(--text-dark); }
.seal { flex: none; display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; border: 2px solid var(--accent-dark); color: var(--accent-dark); font: 800 .74rem/1.05 var(--sans); text-align: center; }
.steps { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 12px; counter-reset: step; }
.steps li { counter-increment: step; display: flex; gap: 14px; align-items: flex-start; color: var(--muted); }
.steps li::before { content: counter(step); flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--ink-3); color: var(--accent); font: 800 .85rem/1 var(--sans); }
@media (max-width: 960px) { .offer-grid { grid-template-columns: 1fr; } }

.cross { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; margin-top: 34px; padding: 22px 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--ink-2); }
.cross-covers { display: flex; }
.cross-covers img { width: 58px; border-radius: 3px; box-shadow: 0 8px 18px rgba(0, 0, 0, .4); }
.cross-covers img + img { margin-left: -16px; margin-top: 10px; }
.cross p { margin: 0; color: var(--muted); }
.cross strong { color: var(--text); }
@media (max-width: 720px) { .cross { grid-template-columns: 1fr; } }

/* FAQ */
.faq { display: grid; gap: 10px; max-width: 860px; margin-inline: auto; }
.faq details { border-radius: 14px; background: #fff; border: 1px solid var(--line-dark); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 56px 20px 22px; position: relative; font-weight: 700; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--accent-dark); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 22px 20px; margin: 0; color: var(--muted-dark); }

/* Final CTA */
.final { text-align: center; background: linear-gradient(180deg, var(--ink-2), var(--ink)); }
.final h2 { max-width: 20ch; margin-inline: auto; }
.final .lede { margin-inline: auto; }
.final .microcopy { justify-content: center; }

/* Footer */
.footer { padding: 48px 0 112px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.footer h2 { margin: 0 0 10px; color: var(--text); font: 700 .78rem/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--text); }
.footer .legal { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid var(--line); font-size: .82rem; }
@media (max-width: 760px) { .footer .wrap { grid-template-columns: 1fr; } }

/* Sticky mobile CTA */
.sticky-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; display: none; align-items: center; gap: 14px; padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); background: rgba(10, 18, 23, .95); backdrop-filter: blur(10px); border-top: 1px solid var(--line); transform: translateY(110%); transition: transform .25s ease; }
.sticky-cta.is-visible { transform: none; }
.sticky-cta div { line-height: 1.25; font-size: .8rem; color: var(--muted); }
.sticky-cta b { display: block; color: var(--text); font-size: 1rem; }
.sticky-cta .btn { margin-left: auto; min-height: 48px; padding: 0 20px; font-size: .95rem; }
@media (max-width: 880px) { .sticky-cta { display: flex; } }

/* Home */
.products { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.product { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 28px; border-radius: 22px; background: #fff; border: 1px solid var(--line-dark); color: var(--text-dark); }
.product img { border-radius: 4px; box-shadow: 0 16px 34px rgba(0, 0, 0, .25); }
.product h3 { font-size: 1.45rem; }
.product p { color: var(--muted-dark); font-size: .98rem; }
.product .meta { font: 700 .74rem/1.3 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--muted-dark); margin-bottom: 8px; }
.product .row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin-top: 8px; }
.product .row strong { font: 800 1.45rem/1 var(--sans); }
.product .btn { min-height: 46px; padding: 0 20px; font-size: .95rem; }
.combo-banner { display: grid; grid-template-columns: auto 1fr auto; gap: 28px; align-items: center; margin-top: 22px; padding: 30px; border-radius: 22px; background: var(--ink); color: var(--text); }
.combo-banner .book-pair .book { width: 104px; box-shadow: 12px 16px 30px rgba(0, 0, 0, .5); }
.combo-banner .book-pair .book + .book { margin-left: -36px; margin-top: 32px; }
.combo-banner h3 { font-size: 1.6rem; }
.combo-banner p { color: var(--muted); margin: 0; }
.badge { display: inline-block; padding: 6px 12px; border-radius: 999px; background: rgba(210, 167, 90, .18); color: var(--accent); font: 800 .7rem/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 10px; }
@media (max-width: 900px) { .products { grid-template-columns: 1fr; } .combo-banner { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .product { grid-template-columns: 1fr; } .product img { width: 130px; } }
.quiz-cta { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; padding: 30px; border-radius: 22px; border: 1px solid var(--line); background: var(--ink-2); }
.quiz-cta h2 { font-size: 1.6rem; margin: 0 0 6px; }
.quiz-cta p { margin: 0; color: var(--muted); }

/* Prose */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.5rem; margin-top: 1.8em; }
.prose p, .prose li { color: var(--muted-dark); }
.prose a { color: var(--text-dark); font-weight: 600; }