:root {
  --j-space-1: 4px;
  --j-space-2: 8px;
  --j-space-3: 12px;
  --j-space-4: 16px;
  --j-space-5: 24px;
  --j-space-6: 32px;
  --j-space-7: 48px;
  --j-space-8: 64px;
  --j-space-9: 96px;
}

.journal-shell .wrap { max-width: 1120px; }
.journal-shell #tools, .journal-shell #guides { scroll-margin-top: 112px; }

.journal-head .wrap { min-height: 76px; }

.journal-nav { display: flex; align-items: center; flex-wrap: wrap; gap: var(--j-space-4); }
.journal-nav a { display: inline-flex; align-items: center; min-height: 44px; }
.journal-shell [hidden] { display: none !important; }
.journal-shell .site-foot a { display: inline-flex; align-items: center; min-height: 44px; }
.journal-shell input[aria-invalid="true"] { border: 2px solid var(--ink); }
.journal-shell h1, .journal-shell h2, .tool-title { hyphens: auto; overflow-wrap: anywhere; }
.journal-masthead h1, .story-copy h2, .tool-title { hyphens: none; overflow-wrap: normal; text-wrap: balance; }
[dir="rtl"] .tool-arrow { transform: scaleX(-1); }
[dir="rtl"] .journal-kicker { letter-spacing: normal; }
.journal-nav a { color: var(--ink-dim); text-decoration: none; }
.journal-nav a:hover,
.journal-nav a[aria-current="page"] { color: var(--ink); }

.journal-masthead {
  display: grid;
  grid-template-columns: minmax(360px, 5fr) minmax(0, 7fr);
  gap: var(--j-space-7);
  padding: var(--j-space-9) 0 var(--j-space-8);
}

.journal-intro { align-self: start; }
.journal-kicker {
  margin: 0 0 var(--j-space-4);
  color: var(--ink-dim);
  font-size: max(12px, .72rem);
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.journal-masthead h1 {
  max-width: none;
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 300;
  letter-spacing: -.035em;
  line-height: 1.08;
}

.journal-deck {
  max-width: 48ch;
  margin: var(--j-space-5) 0 0;
  color: var(--ink-dim);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
}

.journal-filters { display: flex; flex-wrap: wrap; gap: var(--j-space-2); margin-top: var(--j-space-6); }
.journal-filters a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--j-space-4);
  border: 1px solid var(--hairline-strong);
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
}
.journal-filters a:hover,
.journal-filters a[aria-current="page"] { border-color: var(--ink); background: var(--ink); color: var(--surface); }

.tool-index { margin: 0; padding: 0; list-style: none; border-bottom: 1px solid var(--hairline-strong); }
.tool-row { border-top: 1px solid var(--hairline-strong); }
.tool-row > a {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 44px;
  column-gap: var(--j-space-4);
  row-gap: var(--j-space-2);
  align-items: center;
  min-height: 116px;
  padding: var(--j-space-5) var(--j-space-3);
  color: var(--ink);
  text-decoration: none;
  transition: background-color 160ms ease;
}
.tool-row > a:hover { background: var(--surface-fill); }
.tool-row.is-live > a { background: var(--accent); color: var(--on-accent); }
.tool-number,
.tool-meta { font-size: max(12px, .72rem); letter-spacing: .06em; text-transform: uppercase; }
.tool-number { grid-column: 1; grid-row: 1 / span 2; }
.tool-meta { grid-column: 2; grid-row: 2; }
.tool-title { display: block; font-size: clamp(1.25rem, 2.2vw, 1.75rem); line-height: 1.15; }
.tool-promise { display: block; max-width: 50ch; margin-top: var(--j-space-2); color: var(--ink-dim); font-size: .92rem; }
.tool-row.is-live .tool-promise { color: color-mix(in srgb, var(--on-accent) 76%, transparent); }
.tool-arrow { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid currentColor; border-radius: 50%; font-size: 1.25rem; }
.tool-row .tool-arrow { grid-column: 3; grid-row: 1 / span 2; }

.featured-story {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
  margin: var(--j-space-9) 0;
  background: var(--surface-fill);
}
.story-cover { position: relative; min-height: 460px; overflow: hidden; background: #00272e; }
.story-cover::before,
.story-cover::after { content: ""; position: absolute; border: 1px solid rgba(242,248,250,.28); border-radius: 50%; }
.story-cover::before { width: 520px; height: 520px; inset: -80px auto auto -90px; }
.story-cover::after { width: 280px; height: 280px; inset: auto -70px -90px auto; }
.story-route { position: absolute; inset: 13% 11%; border-left: 12px solid var(--accent); transform: skew(-16deg); }
.story-route::before,
.story-route::after { content: ""; position: absolute; left: -12px; width: 72%; border-top: 12px solid var(--accent); }
.story-route::before { top: 34%; transform: skew(28deg); }
.story-route::after { top: 69%; transform: skew(-22deg); }
.story-cover-label { position: absolute; left: var(--j-space-6); right: var(--j-space-6); bottom: var(--j-space-6); color: #f2f8fa; font-size: max(12px,.72rem); letter-spacing: .1em; text-transform: uppercase; }
.story-copy { display: flex; flex-direction: column; justify-content: center; padding: var(--j-space-8); }
.story-copy h2 { max-width: none; margin: 0; font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 300; line-height: 1.1; }
.story-copy p { color: var(--ink-dim); }
.story-copy .story-link { display: inline-flex; align-items: center; min-height: 44px; margin-top: var(--j-space-4); color: var(--ink); }

.journal-list { margin: var(--j-space-7) 0 var(--j-space-9); padding: 0; list-style: none; border-bottom: 1px solid var(--hairline-strong); }
.journal-list li { border-top: 1px solid var(--hairline-strong); }
.journal-list a { display: grid; grid-template-columns: 140px 1fr 44px; gap: var(--j-space-5); align-items: center; min-height: 112px; padding: var(--j-space-5) 0; color: var(--ink); text-decoration: none; }
.journal-list time,
.journal-list .entry-kind { color: var(--ink-dim); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; }
.journal-list strong { font-size: clamp(1.2rem, 2.4vw, 1.75rem); font-weight: 400; }

.fuel-tool { padding: var(--j-space-8) 0 var(--j-space-9); }
.fuel-tool .tool-breadcrumb { margin: 0 0 var(--j-space-5); }
.fuel-tool h1 { max-width: 18ch; margin: 0; font-size: clamp(2.6rem, 7vw, 5.2rem); font-weight: 300; line-height: 1; letter-spacing: -.035em; }
.fuel-layout { display: grid; grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr); gap: var(--j-space-8); margin-top: var(--j-space-8); align-items: start; }
.fuel-form { display: grid; gap: var(--j-space-6); }
.fuel-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--j-space-5); }
.fuel-fields label { display: grid; gap: var(--j-space-2); color: var(--ink-dim); font-size: .84rem; }
.fuel-fields input,
.fuel-fields select { width: 100%; min-height: 48px; padding: 8px 12px; border: 1px solid var(--hairline-strong); border-radius: 8px; background: transparent; color: var(--ink); font: inherit; }
.fuel-actions { display: flex; align-items: center; flex-wrap: wrap; gap: var(--j-space-3); }
.fuel-actions .button-primary {
  min-height: 48px;
  padding: 0 var(--j-space-5);
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--surface);
  font: inherit;
  cursor: pointer;
}
.fuel-actions .button-primary:hover { background: transparent; color: var(--ink); }
.fuel-actions .text-button { min-height: 44px; padding-inline: var(--j-space-2); }
.fuel-result { position: sticky; top: 96px; padding: var(--j-space-6); background: var(--accent); color: var(--on-accent); }
.fuel-result h2 { margin: 0 0 var(--j-space-5); font-size: 1rem; font-weight: 500; text-transform: uppercase; letter-spacing: .08em; }
.fuel-empty { margin: 0; }
.fuel-figures { display: grid; gap: var(--j-space-5); }
.fuel-figure { padding-top: var(--j-space-4); border-top: 1px solid color-mix(in srgb, var(--on-accent) 32%, transparent); }
.fuel-value { display: block; font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1; font-variant-numeric: tabular-nums; }
.fuel-unit { display: block; margin-top: var(--j-space-2); font-size: .82rem; }
.fuel-note { color: var(--ink-dim); }
.fuel-copy { max-width: 760px; padding-bottom: var(--j-space-9); }
.fuel-copy h2 { margin-top: var(--j-space-8); }

@media (max-width: 1023px) {
  .journal-masthead, .featured-story { grid-template-columns: 1fr; }
  .journal-masthead { gap: var(--j-space-7); padding: var(--j-space-8) 0 var(--j-space-7); }
  .journal-intro { max-width: 760px; }
}

@media (max-width: 820px) {
  .fuel-layout { grid-template-columns: 1fr; }
  .story-copy { padding: var(--j-space-7); }
  .fuel-result { position: static; }
}

@media (max-width: 600px) {
  .journal-kicker, .tool-number, .tool-meta, .story-cover-label { font-size: 14px; }
  .journal-shell .wrap { padding-inline: 16px; }
  .journal-nav { gap: var(--j-space-4); font-size: .9rem; }
  .journal-nav > a:nth-child(4) { display: none; }
  .journal-masthead { padding-top: 56px; gap: 40px; }
  .tool-row > a { grid-template-columns: 36px minmax(0,1fr) 44px; min-height: 104px; padding: var(--j-space-5) 0; }
  .tool-promise { display: none; }
  .featured-story { margin: var(--j-space-8) 0; }
  .story-cover { min-height: 320px; }
  .story-copy { padding: var(--j-space-5); }
  .journal-list a { grid-template-columns: 1fr 44px; gap: var(--j-space-3); }
  .journal-list time,
  .journal-list .entry-kind { grid-column: 1; }
  .journal-list strong { grid-column: 1; }
  .journal-list .tool-arrow { grid-column: 2; grid-row: 1 / span 2; }
  .fuel-tool { padding-top: 56px; }
  .fuel-fields { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .tool-row > a { transition: none; }
}