:root{
  --bg:#f4f6f9;
  --surface:#ffffff;
  --surface-soft:#f8fafc;
  --text:#202634;
  --muted:#667085;
  --line:#e3e7ee;
  --navy:#151b38;
  --navy-2:#20294f;
  --accent:#167c78;
  --accent-dark:#0f615e;
  --warm:#c47b45;
  --shadow:0 12px 36px rgba(26,34,58,.08);
  --shadow-lg:0 26px 70px rgba(17,25,52,.16);
  --radius:18px;
  --container:1180px;
  --reading:780px;
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  min-width:320px;
  overflow-x:hidden;
  background:var(--bg);
  color:var(--text);
  font:16.5px/1.72 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  text-rendering:optimizeLegibility;
}
a{color:var(--accent-dark);text-decoration-thickness:.08em;text-underline-offset:.16em}
a:hover{color:#9a542d}
img,svg,video,iframe,object,embed{display:block;max-width:100%}
img,video{height:auto}
button,input,select,textarea{font:inherit}
.sr-only{
  position:absolute!important;
  width:1px!important;
  height:1px!important;
  padding:0!important;
  margin:-1px!important;
  overflow:hidden!important;
  clip:rect(0,0,0,0)!important;
  white-space:nowrap!important;
  border:0!important;
}
.skip-link{
  position:fixed;
  left:16px;
  top:-80px;
  z-index:1000;
  padding:10px 16px;
  border-radius:10px;
  background:#fff;
  color:var(--text);
  box-shadow:var(--shadow);
}
.skip-link:focus{top:16px}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  width:100%;
  background:var(--navy);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 4px 18px rgba(12,17,37,.14);
}
.header-inner{
  width:min(calc(100% - 40px),var(--container));
  min-height:72px;
  margin-inline:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.brand{
  display:inline-flex;
  flex:0 0 auto;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:1.24rem;
  font-weight:800;
  letter-spacing:.01em;
  text-decoration:none;
}
.brand:hover{color:#fff}
.brand-mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  border:1px solid rgba(255,255,255,.38);
  border-radius:50%;
  color:#efb77e;
  background:rgba(255,255,255,.06);
}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:2px;
}
.main-nav a{
  padding:9px 10px;
  border-radius:9px;
  color:#f4f6ff;
  font-size:.91rem;
  font-weight:650;
  text-decoration:none;
  white-space:nowrap;
}
.main-nav a:hover,
.main-nav a:focus-visible{background:rgba(255,255,255,.11);color:#fff}
.menu-button{display:none}

/* Shared layout */
#content{width:100%}
.content-wrap{
  width:min(calc(100% - 40px),var(--container));
  margin-inline:auto;
  padding:38px 0 72px;
}
.eyebrow{
  margin:0 0 9px;
  color:var(--accent-dark);
  font-size:.76rem;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:10px 17px;
  border:1px solid transparent;
  border-radius:11px;
  font-weight:750;
  text-decoration:none;
}
.button.primary{background:var(--accent);color:#fff}
.button.primary:hover{background:var(--accent-dark);color:#fff}
.button.ghost{border-color:rgba(255,255,255,.44);background:transparent;color:#fff}
.button.ghost:hover{background:rgba(255,255,255,.1);color:#fff}

/* Home page */
.hero{
  width:min(calc(100% - 40px),var(--container));
  min-height:430px;
  margin:32px auto 0;
  display:grid;
  grid-template-columns:minmax(0,1.04fr) minmax(360px,.96fr);
  overflow:hidden;
  border-radius:26px;
  background:linear-gradient(135deg,var(--navy),var(--navy-2));
  color:#fff;
  box-shadow:var(--shadow-lg);
}
.hero-copy{
  align-self:center;
  padding:clamp(38px,6vw,72px);
}
.hero .eyebrow{color:#efb77e}
.hero h1{
  max-width:13ch;
  margin:0 0 20px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(2.35rem,4.7vw,4.5rem);
  line-height:1.02;
  letter-spacing:-.035em;
  color:#fff;
}
.hero-copy>p:not(.eyebrow){
  max-width:590px;
  margin:0;
  color:rgba(255,255,255,.82);
  font-size:1.08rem;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:28px}
.hero>img{width:100%;height:100%;min-height:430px;object-fit:cover}
.home .content-wrap{padding-top:54px}
.intro-grid{
  display:grid;
  grid-template-columns:minmax(0,.82fr) minmax(380px,1.18fr);
  gap:54px;
  align-items:start;
}
.intro-grid h2,
.feature-section>h2,
.method-section h2{
  margin:0 0 14px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(1.8rem,3.2vw,2.65rem);
  line-height:1.14;
  color:#1d2740;
}
.intro-grid p{margin:0;color:var(--muted)}
.quick-links{display:grid;gap:12px}
.quick-links a{
  display:grid;
  grid-template-columns:1fr;
  gap:2px;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:15px;
  background:var(--surface);
  color:var(--text);
  text-decoration:none;
  box-shadow:0 5px 18px rgba(25,34,58,.04);
}
.quick-links a:hover{border-color:#a9c9c6;box-shadow:var(--shadow);transform:translateY(-1px)}
.quick-links strong{font-size:1.02rem}
.quick-links span{color:var(--muted);font-size:.91rem}
.feature-section{margin-top:70px}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  margin-top:25px;
}
.feature-grid article{
  min-height:230px;
  padding:26px;
  border:1px solid var(--line);
  border-radius:18px;
  background:var(--surface);
  box-shadow:0 7px 24px rgba(25,34,58,.04);
}
.feature-grid article>span{
  display:inline-grid;
  place-items:center;
  width:42px;
  height:42px;
  border-radius:11px;
  background:#e8f3f2;
  color:var(--accent-dark);
  font-weight:850;
  font-variant-numeric:tabular-nums;
}
.feature-grid h3{
  margin:21px 0 9px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:1.35rem;
  color:#1d2740;
}
.feature-grid p{margin:0;color:var(--muted)}
.method-section{
  margin-top:70px;
  display:grid;
  grid-template-columns:minmax(260px,.7fr) minmax(0,1.3fr);
  gap:50px;
  padding:38px;
  border-radius:22px;
  background:#eaf1f4;
}
.method-section p{margin:0;color:#4f5e6b}

/* Article and category headers */
.page-heading{
  width:min(calc(100% - 40px),var(--container));
  margin-inline:auto;
  padding:42px 0 28px;
}
.breadcrumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 28px;
  color:var(--muted);
  font-size:.86rem;
}
.breadcrumbs a{color:inherit}
.breadcrumbs span[aria-hidden="true"]{color:#adb4c1}
.page-heading h1{
  max-width:920px;
  margin:0 0 16px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(2.15rem,4.5vw,3.85rem);
  line-height:1.08;
  letter-spacing:-.028em;
  color:#18213a;
}
.page-heading .lead{
  max-width:820px;
  margin:0;
  color:#536071;
  font-size:1.08rem;
  line-height:1.65;
}
.article-hero{
  width:100%;
  max-width:920px;
  aspect-ratio:16/9;
  margin-top:28px;
  border-radius:20px;
  object-fit:cover;
  box-shadow:var(--shadow);
}

/* Blog grid */
.inner .content-wrap{padding-top:10px}
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,var(--reading)) minmax(240px,300px);
  justify-content:center;
  align-items:start;
  gap:36px;
}
.article-shell:not(:has(.related)){grid-template-columns:minmax(0,920px)}
.article-content{
  width:100%;
  min-width:0;
  padding:clamp(25px,4vw,48px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--shadow);
}
.article-content>*:first-child{margin-top:0}
.article-content h2,
.article-content h3,
.article-content h4{
  color:#1c2d42;
  font-family:Georgia,"Times New Roman",serif;
  line-height:1.2;
  scroll-margin-top:95px;
}
.article-content h2{margin:2.15em 0 .65em;font-size:clamp(1.5rem,2.7vw,2.05rem)}
.article-content h3{margin:1.7em 0 .55em;font-size:clamp(1.22rem,2vw,1.48rem)}
.article-content h4{margin:1.5em 0 .5em;font-size:1.08rem}
.article-content p{margin:0 0 1.15em}
.article-content ul,
.article-content ol{margin:0 0 1.35em;padding-left:1.4em}
.article-content li+li{margin-top:.48em}
.article-content blockquote{
  margin:1.7em 0;
  padding:18px 21px;
  border-left:4px solid var(--warm);
  border-radius:0 13px 13px 0;
  background:#fbf3ec;
}
.article-content figure{margin:28px 0}
.article-content img{margin:26px auto;border-radius:14px}
.article-content figcaption{margin-top:-15px;color:var(--muted);font-size:.86rem;text-align:center}
.article-content iframe{width:100%;min-height:380px;border:0;border-radius:14px}
.article-content table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:24px 0;
  background:#fff;
}
.article-content th,
.article-content td{min-width:120px;padding:10px 12px;border:1px solid var(--line);vertical-align:top}
.article-content th{background:#edf5f4;text-align:left}
.article-content pre{max-width:100%;overflow:auto;padding:16px;border-radius:12px;background:#111827;color:#e8edf5}
.toc{
  margin:0 0 34px;
  border:1px solid #d7e1e7;
  border-radius:14px;
  background:#f7fafb;
}
.toc summary{
  padding:15px 18px;
  cursor:pointer;
  color:#26344c;
  font-weight:800;
  list-style:none;
}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"+";float:right;font-size:1.18rem}
.toc[open] summary::after{content:"−"}
.toc ol{margin:0;padding:0 22px 18px 43px}
.toc li{margin:.34em 0}
.toc-h3{margin-left:15px}
.toc a{text-decoration:none}
.editor-note{
  margin:1.7rem 0;
  padding:17px 19px;
  border-left:4px solid var(--warm);
  border-radius:0 13px 13px 0;
  background:#fbf3ec;
}
.related{
  position:sticky;
  top:96px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:16px;
  background:var(--surface);
  box-shadow:0 8px 24px rgba(25,34,58,.05);
}
.related>h2{
  margin:0 0 14px;
  color:#1c2d42;
  font-family:Georgia,"Times New Roman",serif;
  font-size:1.34rem;
}
.related-grid{display:grid;gap:10px}
.related-card{
  display:block;
  padding:14px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface-soft);
  color:var(--text);
  text-decoration:none;
}
.related-card:hover{border-color:#9fc6c3;background:#f1f8f7}
.related-card span{display:block;font-weight:730;line-height:1.35}
.related-card small{display:block;margin-top:7px;color:var(--muted)}
.topic-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  margin:28px 0 0;
}
.topic-card{
  display:block;
  padding:20px;
  border:1px solid var(--line);
  border-radius:15px;
  background:var(--surface-soft);
  color:var(--text);
  text-decoration:none;
}
.topic-card:hover{border-color:#9fc6c3;background:#f1f8f7;transform:translateY(-1px)}
.topic-card h2{margin:8px 0;font-family:Georgia,"Times New Roman",serif;font-size:1.18rem}
.topic-card p{margin:0;color:var(--muted);font-size:.91rem}
.topic-card small{display:block;margin-top:12px;color:var(--accent-dark)}
.topic-number{color:var(--accent);font-size:.84rem;font-weight:850;font-variant-numeric:tabular-nums}
.hub-intro{max-width:800px}
.not-found{text-align:center;padding:30px 0}

/* Footer */
.site-footer{
  width:100%;
  padding:48px 20px 28px;
  background:var(--navy);
  color:#cdd4e3;
}
.footer-grid{
  width:min(100%,var(--container));
  margin-inline:auto;
  display:grid;
  grid-template-columns:1.35fr .8fr 1fr .85fr;
  gap:34px;
}
.footer-grid>div{min-width:0}
.footer-grid h2{
  margin:0 0 13px;
  color:#fff;
  font-size:.94rem;
  font-family:inherit;
  letter-spacing:.03em;
}
.footer-grid p{margin:10px 0 0;color:#aeb8ca;font-size:.89rem}
.footer-grid a:not(.brand){
  display:block;
  width:max-content;
  max-width:100%;
  margin:8px 0;
  color:#dce3ef;
  font-size:.9rem;
  text-decoration:none;
}
.footer-grid a:hover{color:#fff;text-decoration:underline}
.footer-brand{margin-bottom:15px}

/* Tablet */
@media (max-width:980px){
  .header-inner,
  .content-wrap,
  .hero,
  .page-heading{width:min(calc(100% - 32px),var(--container))}
  .main-nav a{padding-inline:7px;font-size:.86rem}
  .hero{grid-template-columns:1fr minmax(300px,.82fr)}
  .hero-copy{padding:42px}
  .article-shell{grid-template-columns:minmax(0,760px)}
  .related{position:static}
  .related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr}
  .footer-grid>div:last-child{grid-column:2/4}
}

/* Mobile navigation and layout */
@media (max-width:800px){
  .site-header{position:relative}
  .header-inner{min-height:64px;position:relative}
  .menu-button{
    display:inline-flex;
    width:44px;
    height:42px;
    padding:10px;
    flex:0 0 auto;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    border:1px solid rgba(255,255,255,.32);
    border-radius:10px;
    background:rgba(255,255,255,.06);
    color:#fff;
    cursor:pointer;
  }
  .menu-button>span:not(.sr-only){display:block;width:20px;height:2px;border-radius:2px;background:#fff}
  .main-nav{
    display:none;
    position:absolute;
    left:0;
    right:0;
    top:calc(100% + 1px);
    z-index:120;
    padding:10px;
    border:1px solid rgba(255,255,255,.13);
    border-radius:0 0 14px 14px;
    background:#111830;
    box-shadow:var(--shadow-lg);
  }
  .main-nav.is-open{display:grid;grid-template-columns:1fr 1fr}
  .main-nav a{padding:12px;font-size:.94rem}
  .hero{grid-template-columns:1fr;margin-top:20px}
  .hero-copy{padding:38px 30px}
  .hero h1{max-width:15ch;font-size:clamp(2.2rem,10vw,3.4rem)}
  .hero>img{min-height:260px;max-height:330px}
  .intro-grid,
  .method-section{grid-template-columns:1fr;gap:25px}
  .feature-grid{grid-template-columns:1fr}
  .feature-grid article{min-height:0}
  .method-section{padding:28px}
  .page-heading{padding-top:32px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-grid>div:last-child{grid-column:auto}
}

/* Small phones */
@media (max-width:560px){
  body{font-size:16px;line-height:1.67}
  .header-inner,
  .content-wrap,
  .hero,
  .page-heading{width:min(calc(100% - 24px),var(--container))}
  .brand{font-size:1.1rem}
  .brand-mark{width:34px;height:34px}
  .main-nav.is-open{grid-template-columns:1fr}
  .hero{border-radius:18px}
  .hero-copy{padding:32px 23px}
  .hero h1{font-size:2.25rem}
  .hero-actions{display:grid}
  .hero-actions .button{width:100%}
  .hero>img{min-height:215px;max-height:260px}
  .home .content-wrap{padding-top:40px}
  .feature-section,
  .method-section{margin-top:48px}
  .article-content{padding:24px 18px;border-radius:14px}
  .page-heading h1{font-size:2.12rem}
  .article-hero{border-radius:14px}
  .topic-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:25px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
}
@media print{
  .site-header,.site-footer,.related,.toc,.menu-button{display:none!important}
  body{background:#fff;color:#000;font-size:12pt}
  .content-wrap,.page-heading{width:100%;padding:0}
  .article-shell{display:block}
  .article-content{border:0;box-shadow:none;padding:0}
  a{color:#000;text-decoration:none}
}