:root {
  --ink: #111820;
  --muted: #5f6872;
  --line: #dfe3e7;
  --blue: #0071e3;
  --soft: #f4f6f8;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: #1d1d1f; background: #fff; font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-size: 1rem; line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { color: #006edb; }
button { font-family: inherit; cursor: pointer; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; transform: translateY(-160%); padding: 10px 14px; border-radius: 8px; background: #111820; color: #fff; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 100; top: 0; border-bottom: 1px solid rgba(17,24,32,.08); background: rgba(255,255,255,.88); backdrop-filter: saturate(180%) blur(20px); }
.site-header__inner { width: min(85vw, 1440px); min-height: 76px; display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 28px; margin: auto; }
.site-header__logo { display: flex; align-items: center; }
.site-header__logo img { display: block; width: 150px; height: auto; }
.site-header__nav { justify-self: center; display: flex; align-items: center; gap: 5px; padding: 5px; border: 1px solid rgba(17,24,32,.08); border-radius: 999px; background: rgba(245,247,249,.78); }
.site-header__nav a { padding: 8px 10px; border-radius: 999px; color: #39424b; font-size: .75rem; line-height: 1; text-decoration: none; white-space: nowrap; }
.site-header__nav a:hover { background: #fff; color: #111820; }
.site-header__actions { display: flex; align-items: center; gap: 10px; }
.site-header__actions select { min-height: 38px; padding: 0 30px 0 12px; border: 1px solid #d9dee3; border-radius: 999px; background: #fff; color: #222; font: inherit; font-size: .78rem; }
.site-header__quote { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 17px; border-radius: 999px; background: #0878e8; color: #fff; font-size: .78rem; font-weight: 700; text-decoration: none; white-space: nowrap; }

.container { width: min(85%, 1920px); margin: 0 auto; }
.brand-logo { display: inline-flex; align-items: center; width: 158px; color: #0071e3; text-decoration: none; }
.brand-logo__image { display: block; width: 100%; height: auto; }
.brand-logo--compact { width: 150px; }
.footer__logo .brand-logo__image { filter: brightness(0) invert(1); }
.btn { position: relative; overflow: hidden; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border: 1px solid rgba(255,255,255,.68); border-radius: 9999px; font-size: .875rem; font-weight: 500; letter-spacing: -.01em; text-decoration: none; white-space: nowrap; backdrop-filter: blur(18px) saturate(165%); box-shadow: inset 0 1px 0 rgba(255,255,255,.72), inset 0 -1px 0 rgba(255,255,255,.14), 0 7px 20px rgba(35,68,108,.11); transition: background .2s ease, transform .2s ease, box-shadow .2s ease, color .2s ease; }
.btn::before { content: ''; position: absolute; inset: 1px; border-radius: inherit; pointer-events: none; background: radial-gradient(ellipse at 50% -30%,rgba(255,255,255,.58) 0%,rgba(255,255,255,.18) 38%,transparent 67%); opacity: .68; transition: opacity .22s ease; }
.btn:hover::before { opacity: .9; }
.btn-primary { background: linear-gradient(135deg,rgba(0,122,255,.92),rgba(0,92,205,.78)); color: #fff; border-color: rgba(130,202,255,.62); }
.btn-primary:hover { background: linear-gradient(135deg,rgba(0,132,255,.96),rgba(0,103,220,.84)); color: #fff; transform: translateY(-2px); box-shadow: inset 0 1px 0 rgba(255,255,255,.7),0 10px 26px rgba(0,113,227,.28); }
.header { position: sticky; top: 0; z-index: 100; height: 64px; background: rgba(255,255,255,.78); backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s; }
.header--scrolled { border-bottom-color: #e8e8ed; box-shadow: 0 1px 0 rgba(0,0,0,.06); }
.header__progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: linear-gradient(90deg,#0071e3,#56c8ff); transform: scaleX(0); transform-origin: 0 50%; transition: transform .08s linear; }
.header__inner { display: flex; align-items: center; height: 100%; gap: clamp(32px,4vw,76px); }
.header__logo { flex-shrink: 0; }
.header__glass-nav-holder { position: relative; flex: 1; display: flex; align-items: center; justify-content: center; min-width: 0; }
.header__nav { display: flex; align-items: center; gap: 10px; width: max-content; padding: 4px 6px; border: 1px solid rgba(255,255,255,.72); border-radius: 999px; background: linear-gradient(135deg,rgba(255,255,255,.38),rgba(255,255,255,.14)); backdrop-filter: blur(22px) saturate(170%); box-shadow: inset 0 1px 0 rgba(255,255,255,.9), inset 0 -1px 0 rgba(255,255,255,.25), 0 10px 30px rgba(48,73,105,.09); }
.header__nav-link { position: relative; padding: 6px 14px; border-radius: 9999px; color: #6e6e73; font-size: .79rem; font-weight: 500; text-decoration: none; }
.header__nav-link::after { content: ''; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 1px; background: currentColor; transform: scaleX(0); transition: transform .22s ease; }
.header__nav-link:hover { color: #1d1d1f; background: rgba(255,255,255,.34); }
.header__nav-link:hover::after { transform: scaleX(1); }
.header__actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.header__language-select-wrap { position: relative; display: flex; align-items: center; }
.header__language-select-wrap::after { content: ''; position: absolute; right: 11px; top: 50%; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-65%) rotate(45deg); pointer-events: none; }
.header__language-select { appearance: none; min-width: 58px; height: 34px; padding: 0 26px 0 12px; border: 1px solid #d8dde1; border-radius: 999px; color: #343b42; background: #f5f5f7; font-size: .72rem; font-weight: 700; letter-spacing: .08em; cursor: pointer; }
.header__cta { padding: 8px 18px; font-size: .875rem; }
.header__hamburger { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 36px; height: 36px; margin-left: auto; padding: 4px; border: 0; border-radius: 6px; background: transparent; }
.header__hamburger span { display: block; width: 22px; height: 2px; flex-shrink: 0; pointer-events: none; border-radius: 2px; background: #1d1d1f; transition: transform .2s, opacity .2s; }
.header__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__hamburger.open span:nth-child(2) { opacity: 0; }
.header__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.header__mobile-menu { display: none; flex-direction: column; padding: 12px 0 16px; border-top: 1px solid #e8e8ed; background: rgba(255,255,255,.97); }
.header__mobile-menu.is-open { display: flex; }
.header__mobile-link { display: block; padding: 12px 24px; color: #1d1d1f; font-size: 1rem; font-weight: 500; text-decoration: none; }
.header__mobile-language { display: flex; align-items: center; justify-content: space-between; padding: 12px 24px; color: #6e6e73; }
.header__mobile-menu > .btn { margin: 8px 16px 0; }
.footer { margin-top: 0; padding-top: 64px; background: #1d1d1f; color: #fff; }
.footer__newsletter { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-bottom: 48px; flex-wrap: wrap; }
.footer__newsletter-title { margin: 0 0 6px; color: #fff; font-size: 1.5rem; font-weight: 700; letter-spacing: -.02em; }
.footer__newsletter-text p { max-width: 380px; margin: 0; color: #aeaeb2; font-size: .875rem; line-height: 1.6; }
.footer__newsletter-text .footer__newsletter-title { margin-bottom: 6px; }
.footer__newsletter-form { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; flex-shrink: 0; }
.footer__newsletter-form input[type=email] { width: 240px; padding: 12px 16px; border: 1px solid rgba(255,255,255,.15); border-radius: 9999px; outline: 0; background: rgba(255,255,255,.08); color: #fff; font: inherit; font-size: .875rem; line-height: normal; }
.footer__divider { margin: 0 0 48px; border: 0; border-top: 1px solid rgba(255,255,255,.1); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 48px; }
.footer a { text-decoration: none; }
.footer__logo { margin-bottom: 16px; }
.footer__tagline { margin: 0 0 16px; color: #8e8e93; font-size: .875rem; line-height: 1.6; }
.footer__contact { font-style: normal; }
.footer__contact a, .footer__contact span { display: block; color: #aeaeb2; font-size: .875rem; }
.footer__contact span { margin-bottom: 10px; }
.footer__social { display: flex; align-items: center; gap: 10px; margin-top: 18px; }
.footer__social a { display: inline-flex; align-items: center; gap: 9px; color: #aeaeb2; font-size: .875rem; font-weight: 600; }
.footer__social svg { width: 22px; height: 22px; fill: currentColor; }
.footer__col-title { margin: 0 0 16px; color: #8e8e93; font-size: .75rem; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; }
.footer__col ul { display: flex; flex-direction: column; gap: 10px; margin: 0; padding: 0; list-style: none; }
.footer__col li { margin: 0; }
.footer__col a { color: #aeaeb2; font-size: .875rem; }
.footer__bottom { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 24px 0; border-top: 1px solid rgba(255,255,255,.08); }
.footer__bottom p { margin: 0; color: #636366; font-size: .75rem; }

@media (min-width: 900px) {
  .brand-logo { width: 172px; }
  .brand-logo--compact { width: 158px; }
}

.article-hero { padding: clamp(72px,9vw,132px) max(7.5vw,24px) clamp(48px,6vw,82px); background: linear-gradient(180deg,#f4f6f8 0,#fff 100%); }
.article-hero__inner { max-width: 1180px; margin: auto; }
.article-hero h1 { max-width: 1000px; margin: 0; font-size: clamp(2.55rem,5.7vw,5.65rem); line-height: .98; letter-spacing: -.065em; }
.article-deck { max-width: 780px; margin: 26px 0 22px; color: var(--muted); font-size: clamp(1.08rem,1.7vw,1.34rem); line-height: 1.55; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 24px; color: #707983; font-size: .82rem; }
.article-layout { max-width: 1180px; display: grid; grid-template-columns: 220px minmax(0,760px); gap: clamp(42px,7vw,110px); margin: 0 auto; padding: 70px 24px 110px; }
.article-toc { position: sticky; top: 90px; align-self: start; padding: 20px 0; border-top: 1px solid var(--line); }
.article-toc strong { display: block; margin-bottom: 12px; font-size: .78rem; }
.article-toc a { display: block; padding: 6px 0; color: #68717b; font-size: .78rem; line-height: 1.35; text-decoration: none; }
.article-toc a:hover { color: var(--blue); }
article { min-width: 0; }
.answer-box { margin: 0 0 52px; padding: 24px 26px; border-left: 3px solid var(--blue); background: #f3f7fb; font-size: 1.08rem; }
article h2 { margin: 68px 0 16px; font-size: clamp(1.8rem,3vw,2.65rem); line-height: 1.08; letter-spacing: -.045em; }
article h3 { margin: 34px 0 10px; font-size: 1.22rem; letter-spacing: -.025em; }
article p { margin: 0 0 18px; color: #333c45; }
article ul, article ol { margin: 0 0 24px; padding-left: 22px; }
article li { margin: 8px 0; color: #333c45; }
.table-wrap { width: 100%; margin: 26px 0 34px; overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { padding: 15px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #f3f5f7; font-size: .76rem; letter-spacing: .025em; }
tr:last-child td { border-bottom: 0; }
.note { margin: 26px 0; padding: 20px 22px; border: 1px solid #d7e6f5; border-radius: 14px; background: #f7fbff; }
.article-cta { margin: 62px 0 0; padding: 30px; border-radius: 20px; background: #111820; color: #fff; }
.article-cta h2 { margin: 0 0 12px; font-size: 1.75rem; }
.article-cta p { color: #c8d0d8; }
.article-cta a { display: inline-flex; margin-top: 6px; padding: 11px 17px; border-radius: 999px; background: #1687f8; color: #fff; font-size: .86rem; font-weight: 700; text-decoration: none; }
.sources { margin-top: 64px; padding-top: 24px; border-top: 1px solid var(--line); }
.sources h2 { margin-top: 0; font-size: 1.5rem; }
.sources li { font-size: .82rem; overflow-wrap: anywhere; }

.site-footer { padding: 70px 0 24px; background: #111820; color: #d5dbe1; }
.site-footer__inner, .site-footer__bottom { width: min(85vw,1440px); margin: auto; }
.site-footer__inner { display: grid; grid-template-columns: minmax(240px,1.55fr) repeat(4,minmax(120px,1fr)); gap: clamp(30px,4vw,70px); }
.site-footer a { color: inherit; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer__brand img { display: block; width: 164px; height: auto; filter: brightness(0) invert(1); }
.site-footer__brand > p { max-width: 340px; margin: 22px 0; color: #9fa9b3; font-size: .88rem; line-height: 1.7; }
.site-footer address { display: grid; gap: 7px; color: #aeb7c0; font-size: .8rem; font-style: normal; }
.site-footer__youtube { display: inline-flex; margin-top: 17px; color: #fff !important; font-size: .82rem; font-weight: 700; }
.site-footer__col > p { margin: 5px 0 18px; color: #fff; font-size: .82rem; font-weight: 750; }
.site-footer__col ul { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.site-footer__col li { margin: 0; }
.site-footer__col a { color: #aeb7c0; font-size: .78rem; }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 55px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); color: #7f8993; font-size: .74rem; }
.site-footer__bottom a { color: #aeb7c0; }

@media (max-width: 1100px) {
  .footer__grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer__brand { grid-column: 1/-1; }
  .site-header__inner { width: min(92vw,1440px); grid-template-columns: 1fr auto; }
  .site-header__nav { display: none; }
  .site-footer__inner { grid-template-columns: 1.4fr repeat(2,1fr); }
  .site-footer__brand { grid-row: span 2; }
}

@media (max-width: 800px) {
  .container { width: calc(100% - 40px); }
  .header { height: 56px; }
  .header__glass-nav-holder, .header__actions { display: none; }
  .header__hamburger { display: flex; }
  .brand-logo { width: 158px; }
  .footer__newsletter { flex-direction: column; align-items: flex-start; }
  .footer__newsletter-form, .footer__newsletter-form input[type=email] { width: 100%; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1/-1; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .site-header__inner { min-height: 66px; gap: 12px; }
  .site-header__logo img { width: 126px; }
  .site-header__actions select { min-height: 36px; }
  .site-header__quote { display: none; }
  .article-layout { display: block; padding-top: 44px; }
  .article-toc { position: static; margin-bottom: 42px; }
  .article-hero h1 { font-size: clamp(2.4rem,12vw,4rem); }
  .site-footer { padding-top: 52px; }
  .site-footer__inner { grid-template-columns: 1fr 1fr; gap: 34px 24px; }
  .site-footer__brand { grid-column: 1/-1; grid-row: auto; }
  .site-footer__bottom { display: grid; margin-top: 40px; }
  .site-footer__inner, .site-footer__bottom { width: min(90vw,1440px); }
}