/* ============================================================
   THE JETTSET STANDARD — CHAPTER
   Standalone, isolated stylesheet. All selectors scoped under
   .jettset-standard-section and prefixed "jettset-standard-".
   No bare element selectors — cannot leak into or collide with
   production styles, or with any other isolated chapter's CSS.

   Design: an "editorial proof ledger" — one headline, four
   standards as full-width rows separated by hairlines and a
   numeral spine, not cards and not a step-by-step timeline.
   Hover/focus/scroll only shift emphasis between rows; every
   row is fully legible in its default state with no JavaScript
   and no reveal-on-interaction content.
   ============================================================ */

.jettset-standard-section {
  --js-ink: #0A0908;
  --js-panel: #16140F;
  --js-ivory: #F5F3EF;
  --js-gold: #C9A24B;
  --js-gold-muted: #8C763F;
  --js-grey: #8A8782;

  --js-serif: "Fraunces", "Iowan Old Style", "Georgia", serif;
  --js-sans: "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --js-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  --js-unit: 8px;
  --js-edge: clamp(24px, 6vw, 96px);

  position: relative;
  background: var(--js-ink);
  color: var(--js-ivory);
  font-family: var(--js-sans);
  overflow: hidden;
  isolation: isolate;
}

.jettset-standard-section *,
.jettset-standard-section *::before,
.jettset-standard-section *::after {
  box-sizing: border-box;
}

/* ---------------------------------------------------------------
   HEADER — eyebrow + large single-statement headline. Left-
   weighted, generous negative space, not centred.
   --------------------------------------------------------------- */

.jettset-standard-header {
  padding: calc(var(--js-unit) * 6) var(--js-edge) calc(var(--js-unit) * 4.5);
  max-width: min(90%, 660px);
}

.jettset-standard-kicker {
  font-family: var(--js-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--js-gold);
  margin: 0 0 calc(var(--js-unit) * 1.75);
}

.jettset-standard-kicker-rule {
  display: block;
  width: 56px;
  height: 1px;
  background: var(--js-gold-muted);
  margin: 0 0 calc(var(--js-unit) * 3.5);
}

.jettset-standard-headline {
  font-family: var(--js-serif);
  font-weight: 500;
  font-size: clamp(34px, 3.4vw, 50px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0;
}

.jettset-standard-headline-line {
  display: block;
}

/* ---------------------------------------------------------------
   LEDGER — four full-width rows, hairline rules, a numeral
   spine. No card borders, no boxes, no grid of equal tiles.
   --------------------------------------------------------------- */

.jettset-standard-ledger {
  border-top: 1px solid rgba(201, 162, 75, 0.18);
}

.jettset-standard-row {
  position: relative;
  display: grid;
  grid-template-columns: clamp(72px, 9vw, 140px) 1fr;
  align-items: baseline;
  gap: calc(var(--js-unit) * 3);
  padding: calc(var(--js-unit) * 4.5) var(--js-edge);
  border-bottom: 1px solid rgba(201, 162, 75, 0.14);
  cursor: default;
  outline: none;
  transition: background 0.5s ease;
}

.jettset-standard-mark {
  font-family: var(--js-mono);
  font-size: clamp(20px, 2.4vw, 30px);
  color: rgba(201, 162, 75, 0.7);
  transition: color 0.5s ease, transform 0.5s ease;
}

.jettset-standard-name {
  font-family: var(--js-serif);
  font-size: clamp(22px, 2.4vw, 32px);
  color: rgba(245, 243, 239, 0.94);
  margin: 0 0 calc(var(--js-unit) * 1);
  transition: color 0.5s ease;
}

.jettset-standard-desc {
  font-family: var(--js-sans);
  font-size: 16px;
  line-height: 1.6;
  color: rgba(245, 243, 239, 0.78);
  margin: 0;
  max-width: 54ch;
  transition: color 0.5s ease;
}

/* ---- Emphasis state: hover, keyboard focus, or JS scroll-dominance.
   Pure CSS for hover/focus — no script required. Brightens the
   active row; dims siblings, but never below a readable floor. ---- */

.jettset-standard-row:hover,
.jettset-standard-row:focus-visible,
.jettset-standard-row.is-dominant {
  background: rgba(201, 162, 75, 0.05);
}

.jettset-standard-row:hover .jettset-standard-mark,
.jettset-standard-row:focus-visible .jettset-standard-mark,
.jettset-standard-row.is-dominant .jettset-standard-mark {
  color: var(--js-gold);
  transform: translateX(2px);
}

.jettset-standard-row:hover .jettset-standard-name,
.jettset-standard-row:focus-visible .jettset-standard-name,
.jettset-standard-row.is-dominant .jettset-standard-name {
  color: var(--js-ivory);
}

.jettset-standard-row:hover .jettset-standard-desc,
.jettset-standard-row:focus-visible .jettset-standard-desc,
.jettset-standard-row.is-dominant .jettset-standard-desc {
  color: rgba(245, 243, 239, 0.85);
}

/* Sibling dimming only applies once JS has established which row is
   dominant via scroll; it never drops below a comfortably legible
   opacity, and is skipped entirely under reduced motion (see below). */
.jettset-standard-ledger.js-has-dominance .jettset-standard-row:not(.is-dominant) .jettset-standard-mark {
  color: rgba(201, 162, 75, 0.55);
}
.jettset-standard-ledger.js-has-dominance .jettset-standard-row:not(.is-dominant) .jettset-standard-name {
  color: rgba(245, 243, 239, 0.8);
}
.jettset-standard-ledger.js-has-dominance .jettset-standard-row:not(.is-dominant) .jettset-standard-desc {
  color: rgba(245, 243, 239, 0.64);
}

.jettset-standard-row:focus-visible {
  outline: 1px solid var(--js-gold);
  outline-offset: -4px;
}

/* ---------------------------------------------------------------
   CLOSE — closing line + single CTA. Quiet, not a second headline.
   --------------------------------------------------------------- */

.jettset-standard-close {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: calc(var(--js-unit) * 3);
  padding: calc(var(--js-unit) * 6) var(--js-edge) calc(var(--js-unit) * 9);
}

.jettset-standard-close-line {
  font-family: var(--js-serif);
  font-style: italic;
  font-size: clamp(17px, 1.6vw, 20px);
  color: rgba(245, 243, 239, 0.78);
  margin: 0;
}

.jettset-standard-cta {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--js-unit) * 1.25);
  font-family: var(--js-sans);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--js-ivory);
  text-decoration: none;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--js-gold-muted);
  transition: border-color 0.4s ease, color 0.4s ease, gap 0.4s ease;
  white-space: nowrap;
}

.jettset-standard-cta:hover,
.jettset-standard-cta:focus-visible {
  color: var(--js-gold);
  border-color: var(--js-gold);
  gap: calc(var(--js-unit) * 2);
}

.jettset-standard-cta-arrow {
  transition: transform 0.4s ease;
}

.jettset-standard-cta:hover .jettset-standard-cta-arrow,
.jettset-standard-cta:focus-visible .jettset-standard-cta-arrow {
  transform: translateX(3px);
}

/* ---------------------------------------------------------------
   MOBILE — 390 × 844. Same ledger idea, compact rhythm, numeral
   moves above the row's text instead of beside it so nothing
   feels like a cramped four-column layout.
   --------------------------------------------------------------- */

@media (max-width: 780px) {
  .jettset-standard-header {
    padding: calc(var(--js-unit) * 6) var(--js-edge) calc(var(--js-unit) * 4);
  }

  .jettset-standard-headline {
    font-size: clamp(26px, 7.5vw, 34px);
    max-width: none;
    line-height: 1.15;
  }

  .jettset-standard-headline-line {
    display: inline;
  }

  .jettset-standard-row {
    grid-template-columns: 1fr;
    gap: calc(var(--js-unit) * 1);
    padding: calc(var(--js-unit) * 3.5) var(--js-edge);
  }

  .jettset-standard-mark {
    font-size: 15px;
  }

  .jettset-standard-name {
    font-size: 20px;
  }

  .jettset-standard-desc {
    font-size: 15px;
    max-width: none;
  }

  .jettset-standard-close {
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--js-unit) * 5) var(--js-edge) calc(var(--js-unit) * 7);
  }
}

/* ---- Reduced motion: keep all rows at an equally legible resting
   state; drop the transitions and skip scroll-driven dominance. ---- */

@media (prefers-reduced-motion: reduce) {
  .jettset-standard-row,
  .jettset-standard-mark,
  .jettset-standard-name,
  .jettset-standard-desc,
  .jettset-standard-cta,
  .jettset-standard-cta-arrow {
    transition: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .jettset-standard-ledger.js-has-dominance .jettset-standard-row:not(.is-dominant) .jettset-standard-mark,
  .jettset-standard-ledger.js-has-dominance .jettset-standard-row:not(.is-dominant) .jettset-standard-name,
  .jettset-standard-ledger.js-has-dominance .jettset-standard-row:not(.is-dominant) .jettset-standard-desc {
    color: inherit;
  }
}