/* Colors and fonts. Change here to restyle the whole site. */
:root {
  --bg: #0f0e13;
  --surface: #17151d;
  --surface-2: #1f1c27;
  --line: #2b2735;
  --text: #ece8f2;
  --muted: #a39cb0;
  --accent: #c4b0ff;
  --accent-ink: #15111f;
  --warm: #e9c89b;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, sans-serif;
  --wrap: 1120px;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(var(--wrap), 100% - 32px); margin-inline: auto; }

h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.12; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.3rem, 5.5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.3rem; }
em { font-style: italic; color: var(--accent); }
.eyebrow {
  font-size: .75rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent); font-weight: 600;
}
.lead { color: var(--muted); font-size: 1.12rem; max-width: 60ch; }
.center { text-align: center; }
.center .lead { margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(15, 14, 19, .82); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-family: var(--serif); font-size: 1.25rem; }
.logo::before { content: "ψ"; color: var(--accent); margin-right: .4em; }
.nav { display: flex; gap: 28px; font-size: .92rem; color: var(--muted); }
.nav a:hover, .nav a.active { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: 15px 28px; border-radius: 999px; font-weight: 600; font-size: 1rem;
  background: var(--accent); color: var(--accent-ink);
  transition: transform .15s, box-shadow .15s; cursor: pointer; border: 0;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 30px -10px rgba(196, 176, 255, .6); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--muted); box-shadow: none; }
.btn-wide { width: 100%; }

section { padding: 96px 0; }
section + section { border-top: 1px solid var(--line); }

/* Promo bar */
.promo-bar {
  background: linear-gradient(90deg, #2a2140, #1d1830);
  border-bottom: 1px solid var(--line);
  font-size: .92rem;
}
.promo-bar .wrap { display: flex; align-items: center; justify-content: center; gap: 18px; padding: 10px 0; flex-wrap: wrap; }
.promo-bar strong { color: var(--warm); }
.timer { display: flex; gap: 6px; font-variant-numeric: tabular-nums; }
.timer span {
  background: rgba(0, 0, 0, .35); border-radius: 6px; padding: 3px 8px;
  min-width: 44px; text-align: center; font-weight: 600;
}
.timer small { color: var(--muted); font-weight: 400; margin-left: 2px; font-size: .75em; }

/* Home hero */
.hero { padding: 120px 0 100px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -40% 20% auto; height: 600px;
  background: radial-gradient(closest-side, rgba(196, 176, 255, .16), transparent);
  pointer-events: none;
}
.hero .wrap { position: relative; }
.hero h1 { max-width: 16ch; margin: 18px auto 22px; }
.hero .actions { display: flex; gap: 12px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }

/* Book cards */
.books-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; margin-top: 48px; }
.book-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: border-color .2s, transform .2s;
}
.book-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.book-card-cover { padding: 36px 48px; background: var(--surface-2); }
.book-card-body { padding: 22px 24px 26px; }
.book-card-body p { color: var(--muted); font-size: .95rem; margin: 8px 0 16px; }
.tag {
  display: inline-block; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--warm); margin-bottom: 8px; font-weight: 600;
}

/* Cover */
.cover-type, .book-cover img {
  aspect-ratio: 2 / 3; width: 100%; border-radius: 4px 10px 10px 4px;
  box-shadow: -6px 0 0 -2px rgba(0, 0, 0, .35) inset, 0 30px 60px -20px rgba(0, 0, 0, .8);
}
.book-card-cover img { aspect-ratio: 2 / 3; object-fit: cover; border-radius: 4px 10px 10px 4px; }
.cover-type {
  background: linear-gradient(160deg, #332852, #15111f 70%);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 12% 11%; text-align: center; border: 1px solid #3a3150;
}
.cover-brand { font-size: .62rem; letter-spacing: .25em; text-transform: uppercase; color: var(--accent); }
.cover-title { font-family: var(--serif); font-size: clamp(1.1rem, 2.4vw, 1.7rem); line-height: 1.15; }
.cover-author { font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; color: var(--muted); }

/* Price */
.price { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.price-old { color: var(--muted); text-decoration: line-through; }
.price-now { font-size: 1.5rem; font-weight: 700; }
.badge {
  background: var(--warm); color: #20170c; font-size: .75rem; font-weight: 700;
  padding: 3px 9px; border-radius: 999px;
}

/* Split layouts */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.about-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 40px; color: var(--muted);
}
.about-card p + p { margin-top: 14px; }

/* Newsletter */
.newsletter {
  background: var(--surface); border: 1px solid var(--line); border-radius: 20px;
  padding: 56px 32px; text-align: center;
}
.newsletter form { display: flex; gap: 10px; max-width: 460px; margin: 28px auto 0; }
.newsletter input {
  flex: 1; min-width: 0; padding: 14px 18px; border-radius: 999px; font: inherit;
  background: var(--bg); border: 1px solid var(--line); color: var(--text);
}
.newsletter small { display: block; color: var(--muted); margin-top: 12px; }

/* Book page */
.book-hero { padding: 80px 0 96px; }
.book-hero .split { grid-template-columns: 1fr 1.1fr; }
.book-cover { max-width: 360px; margin-inline: auto; transform: perspective(1200px) rotateY(-8deg); }
.book-hero h1 { margin: 14px 0 18px; }
.meta { display: flex; gap: 22px; color: var(--muted); font-size: .92rem; margin: 22px 0 28px; flex-wrap: wrap; }
.meta span::before { content: "·"; margin-right: 8px; color: var(--accent); }
.buy-box { display: flex; flex-direction: column; gap: 14px; max-width: 380px; }
.buy-box small { color: var(--muted); font-size: .85rem; }

.points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.point { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.point h3 { margin-bottom: 8px; }
.point p { color: var(--muted); font-size: .95rem; }

.toc { margin-top: 40px; border-top: 1px solid var(--line); }
.toc li {
  list-style: none; display: grid; grid-template-columns: 56px 1fr; gap: 12px;
  padding: 20px 0; border-bottom: 1px solid var(--line);
}
.toc .n { font-family: var(--serif); color: var(--accent); font-size: 1.2rem; }
.toc h3 { font-size: 1.1rem; }
.toc p { color: var(--muted); font-size: .93rem; margin-top: 4px; }

.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.review { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.review p { font-family: var(--serif); font-size: 1.08rem; line-height: 1.5; }
.review span { display: block; color: var(--muted); font-size: .88rem; margin-top: 16px; }

.order {
  background: radial-gradient(120% 140% at 50% 0%, #251e38, var(--surface));
  border: 1px solid var(--line); border-radius: 22px; padding: 56px;
}
.order .split { gap: 48px; }
.order ul { list-style: none; margin: 20px 0 0; color: var(--muted); }
.order li { padding: 7px 0 7px 28px; position: relative; }
.order li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); }

.faq { max-width: 760px; margin: 40px auto 0; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; background: none; border: 0; color: var(--text); font: 500 1.05rem var(--sans);
  text-align: left; padding: 22px 36px 22px 0; cursor: pointer; position: relative;
}
.faq-q::after { content: "+"; position: absolute; right: 4px; top: 18px; font-size: 1.4rem; color: var(--accent); transition: transform .2s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { display: none; color: var(--muted); padding: 0 0 22px; }
.faq-item.open .faq-a { display: block; }

/* Legal / simple pages */
.page { padding: 80px 0 100px; }
.page .wrap { max-width: 760px; }
.page h1 { font-size: clamp(2rem, 4.5vw, 3rem); margin-bottom: 12px; }
.page h2 { font-size: 1.35rem; margin: 36px 0 10px; }
.page p, .page li { color: var(--muted); }
.page ul { padding-left: 20px; }
.page a { color: var(--accent); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0; color: var(--muted); font-size: .9rem; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer a:hover { color: var(--text); }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px);
  background: var(--surface-2); border: 1px solid var(--line); padding: 12px 20px;
  border-radius: 999px; opacity: 0; transition: .25s; pointer-events: none; z-index: 50;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.placeholder { outline: 1px dashed #6b5a2a; outline-offset: 4px; }

@media (max-width: 860px) {
  section { padding: 68px 0; }
  .split, .book-hero .split, .points, .reviews { grid-template-columns: 1fr; gap: 36px; }
  .book-cover { max-width: 240px; transform: none; }
  .order { padding: 32px 22px; }
  .newsletter form { flex-direction: column; }
  .nav { gap: 18px; }
  .buy-box { max-width: none; }
}
@media (max-width: 420px) {
  .logo { font-size: 1.05rem; }
  .nav { gap: 14px; font-size: .85rem; }
}

/* Single book on the home page: show it as a wide featured card */
.books-grid:has(> .book-card:only-child) { grid-template-columns: 1fr; }
.book-card:only-child { display: grid; grid-template-columns: minmax(220px, 340px) 1fr; align-items: center; }
.book-card:only-child .book-card-cover { padding: 48px 64px; height: 100%; display: flex; align-items: center; }
.book-card:only-child .book-card-cover > * { width: 100%; }
.book-card:only-child .book-card-body { padding: 40px 48px; }
.book-card:only-child h3 { font-size: 2rem; }
.book-card:only-child p { font-size: 1.05rem; }
@media (max-width: 700px) {
  .book-card:only-child { grid-template-columns: 1fr; }
  .book-card:only-child .book-card-cover { padding: 36px 70px; }
  .book-card:only-child .book-card-body { padding: 24px; }
  .book-card:only-child h3 { font-size: 1.5rem; }
}

/* Book page: prose, steps, stages */
.prose { color: var(--muted); font-size: 1.08rem; }
.prose p + p { margin-top: 16px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 44px; }
.step { border-top: 1px solid var(--accent); padding-top: 20px; }
.step .n { font-family: var(--serif); color: var(--accent); font-size: 1.6rem; }
.step h3 { margin: 6px 0 6px; font-size: 1.15rem; }
.step p { color: var(--muted); font-size: .95rem; }
.stages { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 44px; }
.stage { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; }
.stage-n { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--warm); font-weight: 600; }
.stage h3 { margin: 8px 0 14px; }
.stage ul { list-style: none; color: var(--muted); font-size: .93rem; }
.stage li { padding: 6px 0; border-top: 1px solid var(--line); }
.stages-note { color: var(--muted); margin-top: 24px; font-size: .95rem; }
@media (max-width: 960px) {
  .steps, .stages { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .steps, .stages { grid-template-columns: 1fr; }
}

.btn-soon { opacity: .6; cursor: default; }
.btn-soon:hover { transform: none; box-shadow: none; }

/* Hero second line */
.lead-sub { font-size: 1rem; margin-top: 12px; opacity: .85; }
.center .lead-sub { max-width: 54ch; }

/* YouTube channels */
.channels { margin-top: 36px; }
.channels-label { font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.channels-list { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.channel {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--surface); font-size: .95rem; font-weight: 500;
  transition: border-color .15s, background .15s;
}
.channel svg { width: 18px; height: 18px; color: #ff4e45; flex: none; }
.channel:hover { border-color: var(--muted); background: var(--surface-2); }

/* About text, a bit larger */
.about-card { font-size: 1.08rem; line-height: 1.7; }

/* Mobile menu */
.menu-btn { display: none; }
@media (max-width: 640px) {
  .site-header .wrap { position: relative; }
  .nav {
    display: none; position: absolute; top: 64px; left: -16px; right: -16px;
    flex-direction: column; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 8px 16px 16px; font-size: 1.05rem;
  }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--text); }
  .nav a:last-child { border-bottom: 0; }
  .menu-open .nav { display: flex; }
  .menu-btn {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 40px; height: 40px; background: none; border: 0; cursor: pointer; padding: 8px;
  }
  .menu-btn span { display: block; height: 2px; background: var(--text); border-radius: 2px; transition: transform .2s, opacity .2s; }
  .menu-open .menu-btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-open .menu-btn span:nth-child(2) { opacity: 0; }
  .menu-open .menu-btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .channel { font-size: .9rem; padding: 9px 14px; }
}
.about-card { color: #cfc9d9; }
@media (max-width: 640px) { .about-card { padding: 26px 22px; } }