/* ABOUTME: Shared styles for every page: fonts, colour tokens, layout, buttons, header, footer and the free-book panel. */
/* ABOUTME: Colours come from the book covers: cover yellow and amber, near-black title ink and dollar-bill green. */

@font-face {
  font-family: "Plus Jakarta Sans";
  src: url("/fonts/plus-jakarta-sans.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Source Serif 4";
  src: url("/fonts/source-serif-4-italic.woff2") format("woff2");
  font-weight: 200 900;
  font-style: italic;
  font-display: swap;
}

:root {
  --ink: #1b2320;
  --ink-soft: #2a3430;
  --paper: #fbf8f1;
  --paper-deep: #f3eee2;
  --card: #ffffff;
  --sun: #ffd60a;
  --sun-light: #ffe14d;
  --amber: #ffb703;
  --money: #2d7a4f;
  --text: #1b2320;
  --muted: #5a635f;
  --line: #e6dfcf;
  --on-ink: #f4f1e8;
  --on-ink-muted: #b7bdb6;
  --radius: 14px;
  --shadow-book: 0 1px 2px rgb(0 0 0 / 0.18), 0 18px 40px -12px rgb(0 0 0 / 0.45);
  --shadow-book-small: 0 1px 2px rgb(0 0 0 / 0.15), 0 12px 24px -10px rgb(0 0 0 / 0.4);
  --wrap: 1160px;
  --gutter: 24px;
  --sans: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
body { margin: 0; font-family: var(--sans); color: var(--text); background: var(--paper); line-height: 1.6; font-size: 17px; }
img, picture { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--money); outline-offset: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 20; background: var(--sun); color: var(--ink); padding: 10px 16px; border-radius: 8px; font-weight: 700; }
.skip-link:focus { top: 12px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--money); margin: 0 0 14px; }
.on-ink .eyebrow { color: var(--sun); }
.on-ink { background: var(--ink); color: var(--on-ink); }
.on-ink :focus-visible { outline-color: var(--sun); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 700 16px/1.1 var(--sans); padding: 15px 24px; border-radius: 999px; text-decoration: none; border: 2px solid transparent; cursor: pointer; transition: transform 0.15s ease, background-color 0.15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: 0.7; cursor: progress; transform: none; }
.btn--sun { background: var(--sun); color: var(--ink); }
.btn--sun:hover { background: var(--sun-light); }
.btn--ink { background: var(--ink); color: var(--on-ink); }
.btn--ink:hover { background: var(--ink-soft); }
.btn--ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn--small { padding: 11px 18px; font-size: 14px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.text-link { font-weight: 700; color: var(--money); text-decoration: none; }
.text-link:hover { text-decoration: underline; }

/* Header */
.site-header { background: var(--ink); color: var(--on-ink); position: sticky; top: 0; z-index: 10; border-bottom: 1px solid rgb(255 255 255 / 0.08); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; flex-wrap: wrap; }
.wordmark { text-decoration: none; display: inline-flex; flex-direction: column; line-height: 1.1; color: var(--on-ink); }
.wordmark strong { font-size: 20px; font-weight: 800; letter-spacing: -0.01em; }
.wordmark strong span { color: var(--sun); }
.wordmark small { font-size: 12px; color: var(--on-ink-muted); letter-spacing: 0.08em; text-transform: uppercase; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; flex-wrap: wrap; gap: 6px 28px; font-weight: 600; font-size: 15px; }
.site-nav a:not(.btn) { text-decoration: none; color: var(--on-ink); opacity: 0.9; padding: 6px 0; }
.site-nav a:not(.btn):hover, .site-nav a[aria-current="page"] { opacity: 1; color: var(--sun); }
.menu-toggle { background: none; border: 1px solid rgb(255 255 255 / 0.3); color: var(--on-ink); border-radius: 999px; padding: 9px 16px; font: 600 14px var(--sans); cursor: pointer; }
.menu-toggle[hidden] { display: none; }

@media (max-width: 899px) {
  .site-nav { width: 100%; padding-bottom: 14px; }
  .site-nav ul { gap: 4px 20px; }
  .menu-folds .site-nav { display: none; }
  .menu-folds .site-nav.is-open { display: block; }
  .menu-folds .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .menu-folds .site-nav a:not(.btn) { display: block; padding: 12px 0; border-top: 1px solid rgb(255 255 255 / 0.08); }
  .menu-folds .site-nav .btn { margin-top: 12px; width: 100%; }
}

/* Quotes */
.quote { margin: 0; }
.quote blockquote { margin: 0 0 10px; font-family: var(--serif); font-style: italic; font-size: 19px; line-height: 1.5; }
.quote figcaption { font-size: 14px; color: var(--muted); }
.on-ink .quote figcaption { color: var(--on-ink-muted); }

/* Book covers */
.cover { border-radius: 3px 6px 6px 3px; box-shadow: var(--shadow-book); }
.cover--small { box-shadow: var(--shadow-book-small); border-radius: 2px 4px 4px 2px; }

/* Ticked list */
.ticks { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 12px; }
.ticks li { padding-left: 34px; position: relative; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 3px; width: 22px; height: 22px; border-radius: 50%; background: var(--money) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 22px no-repeat; }

/* Book cards */
.book-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; list-style: none; margin: 0; padding: 0; }
.book-card { height: 100%; background: var(--card); border-radius: var(--radius); padding: 32px 28px 28px; display: flex; flex-direction: column; border: 1px solid var(--line); text-decoration: none; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.book-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px -20px rgb(27 35 32 / 0.35); }
.book-card__cover { height: 260px; display: grid; place-items: center; margin-bottom: 24px; }
.book-card__cover img { max-height: 260px; width: auto; }
.book-card h3 { font-size: 21px; font-weight: 800; }
.book-card p { color: var(--muted); font-size: 16px; flex: 1; }
.book-card__more { font-weight: 700; font-size: 15px; color: var(--money); }

/* Free-book panel */
.optin { padding: 96px 0 0; }
.optin__panel { background: var(--sun); color: var(--ink); border-radius: 24px; display: grid; grid-template-columns: 240px 1fr; gap: 56px; align-items: center; padding: 56px 64px; position: relative; overflow: hidden; }
.optin__panel::after { content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; border-radius: 50%; background: var(--amber); opacity: 0.45; }
.optin__panel > * { position: relative; z-index: 1; }
.optin__cover { box-shadow: var(--shadow-book); border-radius: 3px 6px 6px 3px; transform: rotate(-2deg); }
.optin .eyebrow { color: var(--ink); opacity: 0.75; }
.optin h2 { font-size: clamp(28px, 3.2vw, 38px); font-weight: 800; }
.optin p { font-size: 17px; max-width: 36em; }
.optin :focus-visible { outline-color: var(--ink); }
.signup { max-width: 520px; margin: 22px 0 12px; }
.signup__row { display: flex; gap: 10px; }
.signup input[type="email"] { flex: 1; min-width: 0; font: 500 16px var(--sans); padding: 15px 20px; border-radius: 999px; border: 2px solid var(--ink); background: #fff; color: var(--ink); }
.signup__trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.signup .cf-turnstile { margin-top: 10px; }
.optin__consent { font-size: 13px !important; max-width: 520px; opacity: 0.85; margin: 0; }
.optin__consent a { font-weight: 600; }

/* Footer */
.site-footer { background: var(--ink); color: var(--on-ink-muted); font-size: 14px; padding: 64px 0 40px; margin-top: 96px; }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.site-footer__tagline { margin-top: 14px; max-width: 26em; }
.site-footer h2 { color: var(--on-ink); font-size: 14px; text-transform: uppercase; letter-spacing: 0.1em; margin: 0 0 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.site-footer a { text-decoration: none; color: var(--on-ink); opacity: 0.85; }
.site-footer a:hover { color: var(--sun); opacity: 1; }
.site-footer__legal { border-top: 1px solid rgb(255 255 255 / 0.1); padding-top: 28px; display: grid; gap: 10px; font-size: 13px; line-height: 1.6; }
.site-footer__legal p { margin: 0; }
.site-footer__legal a { text-decoration: underline; }

@media (max-width: 899px) {
  .optin { padding-top: 64px; }
  .optin__panel { grid-template-columns: 1fr; padding: 40px 28px; gap: 28px; }
  .optin__cover { max-width: 160px; }
  .signup__row { flex-direction: column; }
  .site-footer { margin-top: 64px; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  :root { --gutter: 16px; }
  body { font-size: 16px; }
  .optin__panel { padding: 32px 20px; border-radius: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}