/* Expectations Investing — design system drawn from the book cover:
   bright cyan field, condensed black caps, serif inside the lens, black base band. */

:root {
  --cyan: #00aeef;
  --cyan-bright: #29c1f5;
  --cyan-wash: #eaf7fd;
  --cyan-deep: #0272a8;
  --ink: #0d1319;
  --ink-soft: #3b4753;
  --muted: #5f6e7b;
  --paper: #ffffff;
  --mist: #f4f9fc;
  --line: #d9e6ee;
  --black: #0a0a0a;
  --display: "Oswald", "Arial Narrow", sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
  --shadow-card: 0 1px 2px rgba(13, 19, 25, 0.06), 0 8px 24px rgba(13, 19, 25, 0.07);
  --shadow-lift: 0 2px 4px rgba(13, 19, 25, 0.08), 0 16px 40px rgba(13, 19, 25, 0.14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--cyan-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

::selection { background: var(--cyan); color: #fff; }

/* ---------- header ---------- */

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .bar {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.wordmark {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.02;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.wordmark:hover { color: var(--ink); }
.wordmark .mark-icon { width: 30px; height: 30px; flex: none; }
.site-nav { display: flex; gap: 4px 22px; flex-wrap: wrap; }
.site-nav a {
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 3px solid transparent;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--cyan); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--cyan); }

/* ---------- hero (home) ---------- */

.hero {
  background: var(--cyan);
  color: var(--ink);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  width: 780px;
  height: 780px;
  border-radius: 50%;
  border: 44px solid rgba(255, 255, 255, 0.14);
  top: -240px;
  right: -180px;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 26px solid rgba(10, 10, 10, 0.05);
  bottom: -190px;
  left: -140px;
  pointer-events: none;
}
.hero .inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 24px 84px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero .eyebrow {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  background: var(--black);
  color: #fff;
  display: inline-block;
  padding: 6px 12px;
  margin-bottom: 22px;
}
.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(3rem, 7.2vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero .subtitle {
  font-family: var(--serif);
  font-weight: 600;
  font-style: italic;
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  line-height: 1.3;
  color: #fff;
  text-shadow: 0 1px 0 rgba(10, 10, 10, 0.18);
  margin-bottom: 20px;
}
.hero .byline {
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 34px;
}
.hero .byline span { white-space: nowrap; }
.hero-cover { justify-self: center; position: relative; }
.hero-cover img {
  width: min(330px, 72vw);
  box-shadow: 18px 22px 0 rgba(10, 10, 10, 0.22), 0 30px 60px rgba(0, 40, 60, 0.35);
  transform: rotate(1.6deg);
}
.buy-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.buy-label {
  flex-basis: 100%;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(10, 10, 10, 0.65);
  margin-bottom: 2px;
}

/* ---------- buttons ---------- */

.btn {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-block;
  padding: 12px 22px;
  border: 2px solid var(--black);
  color: var(--black);
  background: transparent;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.btn:hover { background: var(--black); color: #fff; transform: translateY(-2px); }
.btn-solid { background: var(--black); color: #fff; }
.btn-solid:hover { background: #fff; color: var(--black); }
.btn-cyan { border-color: var(--black); background: var(--cyan); color: var(--black); }
.btn-cyan:hover { background: var(--black); color: #fff; }

/* ---------- sections ---------- */

.section { padding: 76px 0; }
.section-mist { background: var(--mist); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-cyan-band { background: var(--cyan); }

.kicker {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.kicker::before { content: ""; width: 34px; height: 4px; background: var(--cyan); flex: none; }

h2.title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.06;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin-bottom: 22px;
}
h3.subtitle-head, .prose h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.2;
  margin: 2.2em 0 0.6em;
}
.prose h4 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 1.8em 0 0.5em;
}
.prose p, .prose li { margin-bottom: 1em; }
.prose ul, .prose ol { padding-left: 1.4em; margin-bottom: 1em; }
.prose .lede {
  font-size: 1.3rem;
  line-height: 1.55;
  color: var(--ink-soft);
}
.prose strong { font-weight: 600; }

/* ---------- page hero (interior pages) ---------- */

.page-hero {
  background: var(--cyan);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  border: 30px solid rgba(255, 255, 255, 0.16);
  top: -180px;
  right: -120px;
  pointer-events: none;
}
.page-hero .inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 54px 24px 58px;
  position: relative;
  z-index: 1;
}
.page-hero .kicker { color: var(--black); }
.page-hero .kicker::before { background: var(--black); }
.page-hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.02;
  text-transform: uppercase;
  max-width: 850px;
}
.page-hero .lede {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-size: 1.25rem;
  color: #fff;
  text-shadow: 0 1px 0 rgba(10, 10, 10, 0.18);
  margin-top: 14px;
  max-width: 720px;
}

/* ---------- tutorial article ---------- */

.article-hero { background: var(--cyan); position: relative; overflow: hidden; }
.article-hero::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 26px solid rgba(255, 255, 255, 0.16);
  top: -150px;
  right: -110px;
  pointer-events: none;
}
.article-hero .inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px 54px;
  display: flex;
  gap: 30px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.article-hero .big-num {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(4rem, 9vw, 6.5rem);
  line-height: 1;
  color: #fff;
  text-shadow: 4px 4px 0 rgba(10, 10, 10, 0.85);
  flex: none;
}
.article-hero .label {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 8px;
}
.article-hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.08;
  text-transform: uppercase;
  max-width: 800px;
}
.article-body { padding: 56px 0 24px; }
.article-body figure {
  margin: 2em 0;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  padding: 14px;
}
.article-body figure figcaption {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--muted);
  padding-top: 10px;
  border-top: 1px solid var(--line);
  margin-top: 12px;
}
.article-body figure img { margin: 0 auto; }

.download-box {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--cyan-wash);
  border: 1px solid #bfe6f7;
  border-left: 6px solid var(--cyan);
  padding: 18px 22px;
  margin: 2em 0;
}
.download-box .dl-icon {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--cyan);
  border: 3px solid var(--black);
  display: grid;
  place-items: center;
  color: var(--black);
}
.download-box .dl-icon svg { width: 20px; height: 20px; }
.download-box .dl-meta { flex: 1; }
.download-box .dl-label {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-deep);
}
.download-box a.dl-name {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
}
.download-box a.dl-name:hover { border-bottom-color: var(--ink); }
.download-box .dl-size { font-size: 0.85rem; color: var(--muted); font-style: italic; }

.formula {
  font-family: var(--serif);
  font-size: 1.15rem;
  text-align: center;
  margin: 1.8em auto;
  padding: 22px 16px;
  background: var(--mist);
  border: 1px solid var(--line);
}
.formula .frac { display: inline-block; vertical-align: middle; text-align: center; margin: 0 6px; }
.formula .frac .top { display: block; padding: 0 10px 4px; border-bottom: 2px solid var(--ink); }
.formula .frac .bot { display: block; padding: 4px 10px 0; }
.formula sup { font-size: 0.75em; }

.note-aside {
  font-size: 0.95rem;
  color: var(--ink-soft);
  background: var(--mist);
  border-left: 4px solid var(--line);
  padding: 14px 18px;
  margin: 1.6em 0;
}

/* prev / next */
.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 56px 0 0;
}
.pager a {
  border: 2px solid var(--ink);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--ink);
  background: #fff;
  transition: background 0.15s ease, transform 0.15s ease;
  display: block;
}
.pager a:hover { background: var(--cyan-wash); transform: translateY(-2px); }
.pager .dir {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  display: block;
  margin-bottom: 4px;
}
.pager .name { font-family: var(--display); font-weight: 600; font-size: 1rem; line-height: 1.25; }
.pager .next { text-align: right; grid-column: 2; }
.pager .prev { grid-column: 1; }

/* ---------- cards ---------- */

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; margin-top: 36px; }
.tut-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 5px solid var(--cyan);
  box-shadow: var(--shadow-card);
  padding: 24px 24px 20px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  gap: 18px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.tut-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); color: var(--ink); }
.tut-card .num {
  font-family: var(--display);
  font-weight: 700;
  font-size: 2.6rem;
  line-height: 1;
  color: var(--cyan);
  flex: none;
  min-width: 52px;
}
.tut-card h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.12rem;
  line-height: 1.25;
  margin-bottom: 8px;
}
.tut-card p { font-size: 0.95rem; color: var(--muted); line-height: 1.55; margin-bottom: 10px; }
.tut-card .tag {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
}
.tut-card .go {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  border-bottom: 2px solid var(--cyan);
  display: inline-block;
  padding-bottom: 1px;
  transition: transform 0.15s ease;
}
.tut-card:hover .go { color: var(--ink); border-bottom-color: var(--ink); transform: translateX(4px); }
.tut-card:hover h3 { color: var(--cyan-deep); }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 40px; }
.feature-card {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  padding: 30px 28px;
  text-decoration: none;
  color: var(--ink);
  position: relative;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); color: var(--ink); }
.feature-card .step {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #fff;
  background: var(--black);
  display: inline-block;
  padding: 4px 10px;
  margin-bottom: 16px;
}
.feature-card h3 { font-family: var(--display); font-weight: 600; font-size: 1.35rem; text-transform: uppercase; margin-bottom: 10px; }
.feature-card p { font-size: 1rem; color: var(--ink-soft); line-height: 1.6; }
.feature-card .go {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  margin-top: 16px;
  display: inline-block;
}
.feature-card:hover .go { color: var(--ink); }

/* ---------- quotes ---------- */

.quote-band { background: var(--black); color: #fff; padding: 80px 0; position: relative; overflow: hidden; }
.quote-band::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  border: 34px solid rgba(0, 174, 239, 0.16);
  top: -200px;
  right: -140px;
}
.quote-band blockquote {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  line-height: 1.5;
  max-width: 860px;
  position: relative;
  z-index: 1;
}
.quote-band blockquote::before {
  content: "\201C";
  font-family: var(--display);
  font-style: normal;
  font-size: 5rem;
  line-height: 0.6;
  color: var(--cyan);
  display: block;
  margin-bottom: 18px;
}
.quote-band cite {
  display: block;
  margin-top: 22px;
  font-family: var(--display);
  font-style: normal;
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-bright);
}

.endorsement { margin: 0 0 2.4em; padding-left: 26px; border-left: 4px solid var(--cyan); }
.endorsement p { font-style: italic; font-size: 1.12rem; margin-bottom: 0.6em; }
.endorsement cite {
  font-family: var(--display);
  font-style: normal;
  font-weight: 500;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- ten rules ---------- */

.rules { counter-reset: rule; list-style: none; padding: 0; margin-top: 36px; }
.rules li {
  counter-increment: rule;
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.rules li::before {
  content: counter(rule, decimal-leading-zero);
  font-family: var(--display);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--cyan);
}
.rules li h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}
.rules li p { color: var(--ink-soft); font-size: 1.05rem; }

/* ---------- FAQ ---------- */

.faq { margin-top: 30px; }
.faq details {
  border: 1px solid var(--line);
  background: #fff;
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
}
.faq summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.08rem;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.faq summary .q { flex: 1; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--cyan-deep);
  flex: none;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details[open] summary { border-bottom: 1px solid var(--line); }
.faq .faq-body { padding: 18px 22px 8px; }
.faq .faq-body p, .faq .faq-body li { margin-bottom: 1em; font-size: 1.05rem; }
.faq .faq-body ul { padding-left: 1.3em; }

/* ---------- book page ---------- */

.chapters { margin-top: 10px; }
.part-label {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: var(--black);
  color: #fff;
  display: inline-block;
  padding: 6px 12px;
  margin: 2.4em 0 1em;
}
.chapter { border-top: 1px solid var(--line); padding: 24px 0; }
.chapter h4 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: 10px;
}
.chapter h4 .ch-num { color: var(--cyan-deep); margin-right: 8px; }
.chapter p { font-size: 1.02rem; color: var(--ink-soft); margin-bottom: 0.7em; }
.chapter .whats-new { font-size: 0.95rem; }
.chapter .whats-new strong { color: var(--cyan-deep); }
.chapter .keywords { font-size: 0.85rem; font-style: italic; color: var(--muted); }

.extras-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin-top: 30px; }
.extra-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 5px solid var(--cyan);
  box-shadow: var(--shadow-card);
  padding: 24px;
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.extra-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); color: var(--ink); }
.extra-card .ftype {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  display: block;
  margin-bottom: 10px;
}
.extra-card h3 { font-family: var(--display); font-weight: 600; font-size: 1.15rem; line-height: 1.3; }

/* ---------- authors page ---------- */

.author-block {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.author-block:first-of-type { border-top: none; padding-top: 0; }
.author-block .portrait {
  border: 1px solid var(--line);
  box-shadow: 10px 12px 0 var(--cyan);
}
.author-block h3 { font-family: var(--display); font-weight: 700; font-size: 1.7rem; text-transform: uppercase; margin-bottom: 4px; }
.author-block .role {
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  margin-bottom: 14px;
}

.book-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 30px;
  align-items: start;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}
.book-item .jacket { box-shadow: var(--shadow-card); border: 1px solid var(--line); }
.book-item h4 { font-family: var(--display); font-weight: 600; font-size: 1.3rem; text-transform: uppercase; line-height: 1.15; }
.book-item .sub { font-style: italic; color: var(--ink-soft); margin: 4px 0 12px; }
.book-item p { font-size: 1rem; color: var(--ink-soft); margin-bottom: 1em; }
.book-item .links { display: flex; gap: 10px; flex-wrap: wrap; }
.book-item .links .btn { padding: 9px 16px; font-size: 0.75rem; }

.papers-list { list-style: none; padding: 0; margin-top: 26px; }
.papers-list li { padding: 18px 0; border-top: 1px solid var(--line); font-size: 1.02rem; }
.papers-list li .src { color: var(--muted); font-style: italic; }

/* ---------- books list (resources) ---------- */

.reading-list { list-style: none; padding: 0; margin-top: 26px; }
.reading-list li { padding: 16px 0; border-top: 1px solid var(--line); font-size: 1.02rem; }

/* ---------- contact ---------- */

.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 40px; }
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 5px solid var(--cyan);
  box-shadow: var(--shadow-card);
  padding: 30px 26px;
  text-align: center;
}
.contact-card h3 { font-family: var(--display); font-weight: 600; font-size: 1.2rem; text-transform: uppercase; margin-bottom: 14px; }

/* ---------- footer ---------- */

.site-footer { background: var(--black); color: #cbd5dd; margin-top: 90px; }
.site-footer .top-rule { height: 6px; background: var(--cyan); }
.site-footer .inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}
.site-footer .fm {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1.05;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 12px;
}
.site-footer .fm-sub { font-style: italic; font-size: 0.98rem; color: #8fa3b0; max-width: 300px; }
.site-footer h4 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-bright);
  margin-bottom: 14px;
}
.site-footer ul { list-style: none; padding: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #cbd5dd; text-decoration: none; font-size: 0.98rem; }
.site-footer a:hover { color: var(--cyan-bright); }
.site-footer .baseline {
  border-top: 1px solid #232a30;
  margin-top: 10px;
}
.site-footer .baseline .inner-base {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: #8fa3b0;
}

/* ---------- motion ---------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero .eyebrow, .hero h1, .hero .subtitle, .hero .byline, .hero .buy-row {
  animation: rise 0.6s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
.hero h1 { animation-delay: 0.06s; }
.hero .subtitle { animation-delay: 0.12s; }
.hero .byline { animation-delay: 0.18s; }
.hero .buy-row { animation-delay: 0.24s; }
.hero-cover { animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.3, 1) 0.15s both; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .hero .inner { grid-template-columns: 1fr; padding: 52px 24px 60px; gap: 40px; }
  .hero-cover { order: -1; }
  .hero-cover img { width: min(240px, 60vw); }
  .site-footer .inner { grid-template-columns: 1fr; gap: 28px; }
  .author-block { grid-template-columns: 1fr; gap: 22px; }
  .author-block .portrait { max-width: 240px; }
  .book-item { grid-template-columns: 110px 1fr; gap: 20px; }
}

@media (max-width: 620px) {
  body { font-size: 1.05rem; }
  .section { padding: 56px 0; }
  .site-header .bar { padding: 12px 16px; }
  .site-nav { gap: 2px 14px; }
  .site-nav a { font-size: 0.72rem; letter-spacing: 0.07em; }
  .wrap, .wrap-narrow { padding: 0 18px; }
  .hero .inner, .page-hero .inner, .article-hero .inner { padding-left: 18px; padding-right: 18px; }
  .faq summary { font-size: 0.98rem; padding: 15px 16px; }
  .faq .faq-body { padding: 15px 16px 6px; }
  .btn { padding: 11px 16px; font-size: 0.78rem; }
  .download-box { padding: 14px 16px; gap: 14px; }
  .card-grid { grid-template-columns: 1fr; }
  .tut-card { padding: 20px 18px 16px; }
  h2.title { overflow-wrap: break-word; }
  .rules li { grid-template-columns: 1fr; gap: 6px; }
  .article-hero .inner { flex-direction: column; align-items: flex-start; gap: 10px; }
  .pager { grid-template-columns: 1fr; }
  .pager .next { grid-column: 1; text-align: left; }
  .book-item { grid-template-columns: 1fr; }
  .book-item .jacket { max-width: 130px; }
}

/* ---------- print ---------- */

@media print {
  .site-header, .site-footer, .pager { display: none; }
  .hero, .page-hero, .article-hero { background: #fff; }
}