:root {
  --av-primary: #05152b;
  --av-primary-2: #1b2a41;
  --av-paper: #fbf9fb;
  --av-white: #fff;
  --av-surface: #efedef;
  --av-surface-low: #f5f3f5;
  --av-text: #1b1b1d;
  --av-muted: #44474d;
  --av-line: #c5c6ce;
  --av-copper: #e1c294;
  --av-copper-light: #ffdeae;
}

html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

.editorial-container { width: 100%; max-width: 1200px; min-width: 0; margin: 0 auto; padding-inline: 16px; }
.editorial-hero { position: relative; overflow: hidden; padding: 72px 0 80px; background: var(--av-primary); color: var(--av-white); }
.editorial-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(to right,rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size: 88px 88px; mask-image: linear-gradient(to right,#000,transparent 92%);
}
.editorial-breadcrumb {
  position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px;
  font: 400 14px/1.45 "Source Sans 3",sans-serif; color: rgba(255,255,255,.64);
}
.editorial-breadcrumb a { color: rgba(255,255,255,.78); text-decoration: none; }
.editorial-breadcrumb a:hover,.editorial-breadcrumb a:focus-visible { color: var(--av-copper-light); text-decoration: underline; text-underline-offset: 3px; }
.editorial-breadcrumb [aria-current="page"] { color: rgba(255,255,255,.52); }
.editorial-eyebrow {
  position: relative; z-index: 1; display: flex; align-items: center; gap: 12px; margin-bottom: 24px;
  font: 700 12px/1.3 Montserrat,sans-serif; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.72);
}
.editorial-eyebrow::before { content: ""; width: 32px; height: 1px; background: var(--av-copper); }
.editorial-hero h1 {
  position: relative; z-index: 1; max-width: 940px; margin: 0 0 24px;
  font: 700 clamp(36px,6vw,60px)/1.08 Montserrat,sans-serif; letter-spacing: -.025em; overflow-wrap: anywhere;
}
.editorial-lead {
  position: relative; z-index: 1; max-width: 760px; margin: 0; padding-left: 20px; border-left: 1px solid rgba(225,194,148,.65);
  font: 400 clamp(18px,2vw,22px)/1.55 "Source Sans 3",sans-serif; color: rgba(255,255,255,.8);
}
.article-meta {
  position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 32px;
  font: 400 14px/1.4 "Source Sans 3",sans-serif; color: rgba(255,255,255,.62);
}
.article-meta span + span::before { content: ""; display: inline-block; width: 3px; height: 3px; margin: 0 12px 3px 0; background: var(--av-copper); }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr); gap: 48px; padding-block: 48px 88px; }
.article-layout > * { min-width: 0; }
.article-toc { width: 100%; align-self: start; padding: 24px; border: 1px solid rgba(197,198,206,.75); background: var(--av-white); }
.article-toc-title,.box-label {
  display: block; margin: 0 0 16px; font: 700 12px/1 Montserrat,sans-serif;
  letter-spacing: .08em; text-transform: uppercase; color: var(--av-primary);
}
.article-toc ol { margin: 0; padding: 0; list-style: none; }
.article-toc li + li { border-top: 1px solid rgba(197,198,206,.45); }
.article-toc a {
  display: block; padding: 11px 0; font: 400 15px/1.35 "Source Sans 3",sans-serif; color: var(--av-muted);
  transition: color .15s ease,padding-left .15s ease;
}
.article-toc a:hover,.article-toc a:focus-visible { padding-left: 4px; color: var(--av-primary); }
.article-body { width: 100%; max-width: 760px; min-width: 0; }
.article-body > :first-child { margin-top: 0; }
.article-body h2 {
  scroll-margin-top: 112px; margin: 64px 0 20px; color: var(--av-text);
  font: 700 clamp(27px,4vw,32px)/1.22 Montserrat,sans-serif; letter-spacing: -.015em;
}
.article-body h3 { scroll-margin-top: 112px; margin: 40px 0 14px; color: var(--av-text); font: 600 21px/1.35 Montserrat,sans-serif; }
.article-body p,.article-body li { color: var(--av-muted); font: 400 18px/1.75 "Source Sans 3",sans-serif; }
.article-body p { margin: 0 0 22px; }
.article-body ul,.article-body ol { margin: 0 0 28px; padding-left: 24px; }
.article-body ul { list-style: square; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 9px; padding-left: 6px; }
.article-body strong { color: var(--av-text); }
.article-body a { color: var(--av-primary); text-decoration: underline; text-decoration-color: var(--av-copper); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.article-body a:hover { text-decoration-color: var(--av-primary); }
.answer-box,.attention-box,.technical-note,.example-box { margin: 32px 0 40px; padding: 26px 28px; }
.answer-box { border: 1px solid var(--av-line); border-top: 4px solid var(--av-copper); background: var(--av-white); }
.attention-box { border-left: 4px solid var(--av-copper); background: var(--av-surface-low); }
.technical-note { border-left: 2px solid var(--av-primary); background: var(--av-surface); }
.example-box { position: relative; overflow: hidden; background: var(--av-primary); color: var(--av-white); }
.example-box::after { content: ""; position: absolute; right: -55px; bottom: -55px; width: 140px; height: 140px; border: 1px solid rgba(225,194,148,.22); transform: rotate(45deg); }
.example-box .box-label { color: var(--av-copper); }
.example-box p,.example-box li { color: rgba(255,255,255,.82); }
.example-box strong { color: var(--av-white); }
.calculation { margin-top: 24px; border-top: 1px solid rgba(255,255,255,.16); }
.calculation-row {
  display: flex; justify-content: space-between; gap: 20px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.12);
  font: 400 16px/1.5 "Source Sans 3",sans-serif; color: rgba(255,255,255,.76);
}
.calculation-row:last-child { padding-top: 18px; border: 0; font-weight: 700; color: var(--av-copper-light); }
.article-table-wrap { overflow-x: auto; margin: 28px 0 36px; }
.article-table { width: 100%; min-width: 560px; border-collapse: collapse; }
.article-table th,.article-table td { padding: 14px 16px; border: 1px solid var(--av-line); text-align: left; vertical-align: top; font: 400 16px/1.5 "Source Sans 3",sans-serif; }
.article-table th { background: var(--av-primary); color: var(--av-white); font: 700 12px/1.3 Montserrat,sans-serif; letter-spacing: .05em; text-transform: uppercase; }
.source-list { margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--av-line); }
.source-list h2 { margin-top: 0; font-size: 22px; }
.source-list li,.source-list p { font-size: 15px; line-height: 1.55; }
.article-cta { margin-top: 64px; padding: 36px; background: var(--av-primary); color: var(--av-white); }
.article-cta h2 { margin: 0 0 14px; color: var(--av-white); }
.article-cta p { color: rgba(255,255,255,.74); }
.article-cta a {
  display: inline-flex; align-items: center; justify-content: center; min-height: 52px; margin-top: 8px; padding: 14px 24px;
  background: var(--av-copper); color: #281900; font: 700 12px/1 Montserrat,sans-serif; letter-spacing: .05em; text-transform: uppercase; text-decoration: none;
  transition: background-color .15s ease,transform .15s ease;
}
.article-cta a:hover { background: var(--av-copper-light); transform: translateY(-2px); }
.editorial-disclaimer { margin-top: 32px; padding-top: 24px; border-top: 1px solid rgba(197,198,206,.6); font-size: 14px!important; color: rgba(68,71,77,.72)!important; }
.content-index-intro { padding: 64px 0 32px; }
.content-index-intro h1 { max-width: 760px; margin: 0 0 20px; color: var(--av-text); font: 700 clamp(36px,5vw,52px)/1.1 Montserrat,sans-serif; letter-spacing: -.025em; }
.content-index-intro p { max-width: 680px; color: var(--av-muted); font: 400 20px/1.6 "Source Sans 3",sans-serif; }
.content-grid { display: grid; grid-template-columns: 1fr; margin: 32px 0 88px; border-top: 1px solid var(--av-line); border-left: 1px solid var(--av-line); }
.content-card { display: flex; min-height: 320px; flex-direction: column; padding: 32px; border-right: 1px solid var(--av-line); border-bottom: 1px solid var(--av-line); background: var(--av-white); transition: background-color .15s ease; }
.content-card:hover { background: var(--av-surface-low); }
.content-card .category { margin-bottom: 28px; color: var(--av-primary); font: 700 12px/1.3 Montserrat,sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.content-card h2 { margin: 0 0 16px; color: var(--av-text); font: 600 24px/1.3 Montserrat,sans-serif; }
.content-card p { margin: 0 0 24px; color: var(--av-muted); font: 400 16px/1.6 "Source Sans 3",sans-serif; }
.content-card .read-more { margin-top: auto; padding-top: 20px; border-top: 1px solid rgba(197,198,206,.55); color: var(--av-primary); font: 700 12px/1 Montserrat,sans-serif; letter-spacing: .05em; text-transform: uppercase; }
@media (min-width:768px) { .content-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px) {
  .editorial-container { padding-inline: 40px; }
  .editorial-hero { padding: 96px 0 104px; }
  .article-layout { grid-template-columns: 240px minmax(0,760px); gap: 72px; padding-top: 72px; }
  .article-toc { position: sticky; top: 112px; }
  .content-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
}
@media (max-width:639px) {
  .editorial-container { width: auto; max-width: none; margin-inline: 0; }
  .editorial-hero { padding: 56px 0 64px; }
  .editorial-hero h1,.editorial-lead,.article-meta { width: calc(100vw - 32px); max-width: calc(100vw - 32px); }
  .article-layout { width: 100vw; max-width: 100vw; overflow: hidden; }
  .article-body,.article-toc { width: 100%; max-width: 100%; }
  .article-table-wrap { max-width: calc(100vw - 32px); }
  .article-meta { display: grid; gap: 7px; }
  .article-meta span + span::before { display: none; }
  .answer-box,.attention-box,.technical-note,.example-box { margin-inline: -4px; padding: 22px 20px; }
  .article-cta { padding: 28px 22px; }
  .article-cta a { width: 100%; }
  .calculation-row { display: grid; gap: 2px; }
}
@media (prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } *,*::before,*::after { transition-duration: .01ms!important; } }