/* ui_kits/book_site/kit.css
   Component CSS for the marketing site. Composes tokens from
   ../../colors_and_type.css. */

/* ---- Layout primitives ---- */
.dd-app {
  min-height: 100vh;
  background: var(--dd-paper);
  color: var(--dd-ink);
  font-family: var(--font-serif);
}
.dd-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---- Buttons (shared) ---- */
.dd-btn {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.2em;
  padding: 12px 20px;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  background: transparent;
  color: inherit;
  transition: background 160ms cubic-bezier(0.2,0.7,0.2,1),
              color 160ms cubic-bezier(0.2,0.7,0.2,1),
              border-color 160ms cubic-bezier(0.2,0.7,0.2,1),
              transform 80ms ease-out;
}
.dd-btn:active { transform: translateY(1px); }
.dd-btn--primary { background: var(--dd-navy); color: var(--dd-yellow); border-color: var(--dd-navy); }
.dd-btn--primary:hover { background: var(--dd-navy-deep); }
.dd-btn--secondary { background: transparent; color: var(--dd-navy); border-color: var(--dd-navy); }
.dd-btn--secondary:hover { background: var(--dd-navy); color: var(--dd-yellow); }
.dd-btn--ghost { color: var(--dd-navy); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; padding-inline: 6px; }
.dd-btn--ghost:hover { text-decoration-thickness: 2px; }

.dd-btn--primary-on-navy { background: var(--dd-yellow); color: var(--dd-navy); border-color: var(--dd-yellow); box-shadow: var(--shadow-inset); }
.dd-btn--primary-on-navy:hover { background: var(--dd-yellow-deep); }
.dd-btn--ghost-on-navy { color: var(--dd-yellow); text-decoration: underline; text-underline-offset: 4px; padding-inline: 6px; }

/* ---- Nav ---- */
.dd-nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px;
  padding: 18px 32px;
  background: color-mix(in oklab, var(--dd-paper) 88%, transparent);
  backdrop-filter: saturate(120%) blur(10px);
  -webkit-backdrop-filter: saturate(120%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.dd-nav__brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.dd-nav__mark { width: 32px; height: 32px; }
.dd-nav__name { font-family: var(--font-display); font-size: 14px; letter-spacing: 0.22em; }
.dd-nav__links { display: flex; gap: 26px; list-style: none; padding: 0; margin: 0; }
.dd-nav__link { font-family: var(--font-display); font-size: 12px; letter-spacing: 0.24em; color: var(--fg2); text-decoration: none; padding-bottom: 4px; }
.dd-nav__link:hover { color: var(--fg1); }
.dd-nav__link.is-active { color: var(--fg1); border-bottom: 2px solid var(--dd-yellow); }
.dd-nav__cta { padding: 9px 16px; font-size: 12px; }

/* ---- Hero ---- */
.dd-hero {
  position: relative;
  background:
    radial-gradient(60% 42% at 50% 116%, rgba(239,226,162,0.20) 0%, rgba(210,169,81,0.12) 28%, rgba(210,169,81,0) 62%),
    linear-gradient(180deg, #243D65 0%, #16284a 40%, #091621 100%);
  color: var(--dd-gold-light);
  padding: 96px 32px 80px;
  text-align: center;
  overflow: hidden;
}
.dd-hero__inner { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.dd-hero__mark { width: 140px; height: 140px; margin-bottom: 8px; }
.dd-hero__eyebrow { font-family: var(--font-display); font-size: 12px; letter-spacing: 0.4em; color: var(--dd-gold); margin: 0; }
.dd-hero__title { font-family: var(--font-display); font-weight: 400; font-size: clamp(44px, 6vw, 72px); line-height: 1.05; letter-spacing: 0.06em; margin: 8px 0 0; color: var(--dd-gold-light); }
.dd-hero__rule { width: 110px; height: 0; border: 0; border-top: 1px solid color-mix(in oklab, var(--dd-gold) 55%, var(--dd-navy)); margin: 18px auto; }
.dd-hero__byline { font-family: var(--font-serif); font-style: italic; font-size: 18px; letter-spacing: 0.06em; color: color-mix(in oklab, var(--dd-gold-light) 80%, var(--dd-navy)); margin: 0; }
.dd-hero__lede { font-family: var(--font-serif); font-style: italic; font-size: 19px; line-height: 1.5; max-width: 540px; color: color-mix(in oklab, var(--dd-gold-light) 85%, var(--dd-navy)); margin: 18px 0 22px; }
.dd-hero__actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; justify-content: center; }
.dd-hero__footnote { position: absolute; bottom: 24px; left: 0; right: 0; text-align: center; font-family: var(--font-serif); font-style: italic; font-size: 12px; color: color-mix(in oklab, var(--dd-yellow) 35%, var(--dd-navy)); margin: 0; }

/* ---- Section heads ---- */
.dd-section-head { text-align: center; margin: 96px 0 32px; display: flex; flex-direction: column; gap: 6px; align-items: center; }
.dd-section-head .dd-eyebrow { font-family: var(--font-display); font-size: 12px; letter-spacing: 0.36em; color: var(--fg3); margin: 0; }
.dd-h1 { font-family: var(--font-display); font-weight: 400; font-size: clamp(34px, 4vw, 52px); line-height: 1.1; letter-spacing: 0.06em; margin: 0; }
.dd-h2 { font-family: var(--font-display); font-weight: 400; font-size: clamp(26px, 2.6vw, 36px); line-height: 1.15; letter-spacing: 0.08em; margin: 0; }

/* ---- Chapters list ---- */
.dd-chapters { max-width: 760px; margin: 0 auto; padding: 0 32px 96px; }
.dd-chapters__list { list-style: none; padding: 0; margin: 0; }
.dd-chapters__row { border-top: 1px solid var(--rule); }
.dd-chapters__row:last-child { border-bottom: 1px solid var(--rule); }
.dd-chapters__btn {
  display: grid;
  grid-template-columns: 56px 1fr auto auto;
  gap: 16px;
  align-items: baseline;
  width: 100%;
  padding: 18px 8px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: inherit;
  transition: background 160ms, color 160ms;
}
.dd-chapters__btn:hover { background: rgba(9, 22, 33, 0.04); color: var(--dd-navy); }
.dd-chapters__num { font-family: var(--font-display); font-size: 18px; letter-spacing: 0.18em; color: var(--fg3); }
.dd-chapters__title { font-family: var(--font-serif); font-size: 20px; }
.dd-chapters__dots {
  height: 1px;
  background: repeating-linear-gradient(to right, var(--rule) 0 2px, transparent 2px 6px);
}
.dd-chapters__pages { font-family: var(--font-companion); font-size: 13px; color: var(--fg3); }
.dd-chapters__note { font-family: var(--font-serif); font-size: 14px; color: var(--fg2); text-align: center; margin-top: 24px; }

/* ---- Excerpt (reader view) ---- */
.dd-excerpt { max-width: 640px; margin: 0 auto; padding: 64px 24px 96px; }
.dd-excerpt__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 48px; }
.dd-excerpt__chnum { font-family: var(--font-display); font-size: 12px; letter-spacing: 0.3em; color: var(--fg3); }
.dd-excerpt__title { font-family: var(--font-display); font-weight: 400; font-size: clamp(36px, 4vw, 52px); line-height: 1.1; letter-spacing: 0.06em; text-align: center; margin: 0 0 8px; }
.dd-excerpt__body { font-family: var(--font-serif); font-size: 18px; line-height: 1.7; }
.dd-excerpt__body p { margin: 0 0 22px; text-wrap: pretty; }
.dd-excerpt__body p + p { text-indent: 1.5em; }
.dd-lede { font-family: var(--font-serif) !important; font-style: italic; font-size: 22px !important; line-height: 1.5 !important; color: var(--fg2); margin: 0 0 28px !important; }
.dd-p { }
.dd-pullquote { font-family: var(--font-serif); font-style: italic; font-size: clamp(24px, 2.4vw, 32px); line-height: 1.3; text-wrap: balance; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 20px 0; margin: 32px 0; text-align: center; }
.dd-excerpt__foot { margin-top: 48px; text-align: center; }

.dd-eyebrow { font-family: var(--font-display); font-size: 12px; letter-spacing: 0.36em; color: var(--fg3); }
.dd-p { font-family: var(--font-serif); font-size: 18px; line-height: 1.65; margin: 0 0 18px; }
.dd-byline { font-family: var(--font-serif); font-style: italic; font-size: 16px; letter-spacing: 0.04em; color: var(--fg2); }
.dd-caption { font-family: var(--font-companion); font-size: 13px; color: var(--fg3); }

/* ---- Author ---- */
.dd-author { background: var(--dd-paper-soft); padding: 96px 32px; }
.dd-author__inner { max-width: 640px; margin: 0 auto; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px; }

/* ---- Order ---- */
.dd-order { background: var(--dd-paper); padding: 96px 32px; }
.dd-order__inner { max-width: 580px; margin: 0 auto; text-align: center; display: flex; flex-direction: column; gap: 14px; align-items: stretch; }
.dd-order__inner > * { align-self: center; }
.dd-order__list { list-style: none; padding: 0; margin: 8px 0 16px; align-self: stretch; }
.dd-order__row { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 16px 0; border-top: 1px solid var(--rule); text-align: left; }
.dd-order__row:last-child { border-bottom: 1px solid var(--rule); }
.dd-order__name { font-family: var(--font-serif); font-size: 18px; }
.dd-order__price { font-family: var(--font-display); font-size: 20px; letter-spacing: 0.08em; }
.dd-order__field { display: flex; flex-direction: column; gap: 6px; align-self: stretch; text-align: left; margin-top: 14px; }
.dd-label { font-family: var(--font-display); font-size: 11px; letter-spacing: 0.22em; color: var(--fg2); }
.dd-input { font-family: var(--font-serif); font-size: 16px; padding: 10px 12px; border: 1px solid var(--rule-strong); background: var(--dd-paper-soft); color: var(--fg1); border-radius: 2px; outline: none; }
.dd-input:focus { border-color: var(--dd-navy); box-shadow: 0 0 0 2px var(--dd-yellow); }
.dd-order__submit { align-self: stretch; padding: 16px; font-size: 14px; }
.dd-order__note { margin: 8px 0 0; }

/* ---- Footer ---- */
.dd-footer { background: var(--dd-navy); color: color-mix(in oklab, var(--dd-yellow) 80%, var(--dd-navy)); padding: 64px 32px 48px; text-align: center; }
.dd-footer__inner { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.dd-footer__mark { width: 48px; height: 48px; opacity: 0.95; }
.dd-footer__line { font-family: var(--font-display); font-size: 13px; letter-spacing: 0.36em; margin: 8px 0 0; color: var(--dd-yellow); }
.dd-footer__small { font-family: var(--font-serif); font-size: 13px; color: color-mix(in oklab, var(--dd-yellow) 45%, var(--dd-navy)); margin: 0; }
.dd-footer__links { margin-top: 12px; display: flex; gap: 24px; }
.dd-footer__a { font-family: var(--font-display); font-size: 11px; letter-spacing: 0.28em; color: color-mix(in oklab, var(--dd-yellow) 65%, var(--dd-navy)); text-decoration: none; }
.dd-footer__a:hover { color: var(--dd-yellow); text-decoration: underline; text-underline-offset: 4px; }

/* Inline links */
.dd-link { font-family: var(--font-serif); font-style: italic; color: var(--fg2); background: transparent; border: 0; cursor: pointer; padding: 4px 6px; }
.dd-link:hover { color: var(--fg1); text-decoration: underline; text-underline-offset: 4px; }

/* Rules */
.dd-rule { border: 0; border-top: 1px solid var(--rule); margin: 24px 0; }
.dd-rule--short { width: 84px; margin-inline: auto; }
.dd-rule--diamond {
  height: 12px; border: 0; width: 220px; margin: 28px auto;
  background:
    radial-gradient(circle at 50% 50%, var(--rule-strong) 0 2px, transparent 2.5px) center / 14px 12px no-repeat,
    linear-gradient(to right, transparent 0, var(--rule) 50%, transparent 100%) center / 100% 1px no-repeat;
}