:root{
  --ink:#14212E;
  --ink-2:#1C3040;
  --ink-3:#0E1922;
  --limestone:#EDE7DA;
  --limestone-2:#F6F2E9;
  --white:#FFFFFF;
  --yield:#2F6E4F;
  --yield-light:#E1EDE5;
  --terracotta:#B5603E;
  --slate:#4E5A63;
  --slate-light:#8B95A0;
  --line: rgba(20,33,46,0.12);
  --line-on-ink: rgba(237,231,218,0.22);
  --radius: 2px;
  --display: "Newsreader", serif;
  --body: "Space Grotesk", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --maxw: 1180px;
  --maxw-article: 760px;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--limestone-2); color:var(--ink);
  font-family:var(--body); font-size:16px; line-height:1.6; -webkit-font-smoothing:antialiased;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul,ol{ margin:0; padding:0; }
h1,h2,h3{ margin:0; font-family:var(--display); font-weight:500; letter-spacing:-0.01em; }
p{ margin:0; }
.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 32px; }
@media (max-width:640px){ .wrap{ padding:0 20px; } }

/* Nav (mirrors homepage) */
.nav{ position:sticky; top:0; z-index:50; background:rgba(246,242,233,0.92); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.nav-inner{ max-width:var(--maxw); margin:0 auto; padding:0 32px; height:76px; display:flex; align-items:center; justify-content:space-between; }
.logo{ font-family:var(--display); font-size:21px; font-weight:500; }
.logo span{ color:var(--yield); font-style:italic; }
.nav-links{ display:flex; gap:32px; }
.nav-links a{ font-size:14.5px; font-weight:500; color:var(--slate); }
.nav-links a:hover{ color:var(--ink); }
.nav-links a.active{ color:var(--yield); }
.nav-burger{ display:none; background:none; border:none; padding:8px; cursor:pointer; }
.nav-burger span{ display:block; width:22px; height:2px; background:var(--ink); margin:5px 0; }
@media (max-width:900px){
  .nav-links{ display:none; }
  .nav-burger{ display:block; }
  .nav-links.mobile-open{
    display:flex; flex-direction:column; position:absolute;
    top:76px; left:0; right:0; background:#F6F2E9;
    padding:20px 32px; border-bottom:1px solid rgba(20,33,46,0.12);
  }
  .nav-links.mobile-open a{ padding:10px 0; }
}
.nav-actions{ display:flex; align-items:center; gap:12px; }
.lang-toggle{
  font-family:var(--mono); font-size:13px; letter-spacing:.04em;
  background:transparent; border:1px solid var(--line); border-radius:var(--radius);
  padding:8px 12px; color:var(--ink); cursor:pointer;
}
.lang-toggle:hover{ border-color:var(--ink); }
.btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:12px 22px; font-weight:600; font-size:14.5px; border-radius:var(--radius); border:1px solid transparent; background:var(--yield); color:var(--white); }
.btn:hover{ background:#255b41; }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn-ghost:hover{ border-color:var(--ink); }

/* Breadcrumb */
.crumb{ font-family:var(--mono); font-size:12px; color:var(--slate-light); padding:28px 0 0; }
.crumb a{ color:var(--slate); }
.crumb a:hover{ color:var(--yield); }

/* Article header */
.article-head{ max-width:var(--maxw-article); margin:0 auto; padding:22px 32px 40px; }
@media (max-width:640px){ .article-head{ padding:16px 20px 30px; } }
.eyebrow{ font-family:var(--mono); font-size:12.5px; letter-spacing:.09em; text-transform:uppercase; color:var(--yield); display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--yield); display:inline-block; }
.article-head h1{ font-size:clamp(30px,4.2vw,44px); line-height:1.12; margin-bottom:16px; }
.article-meta{ font-family:var(--mono); font-size:12.5px; color:var(--slate-light); display:flex; gap:16px; flex-wrap:wrap; }
.article-dek{ font-size:17px; color:var(--slate); margin-top:18px; max-width:60ch; }

/* Article body */
.article-body{ max-width:var(--maxw-article); margin:0 auto; padding:0 32px 60px; }
@media (max-width:640px){ .article-body{ padding:0 20px 40px; } }
.article-body h2{ font-size:26px; margin:44px 0 16px; }
.article-body h3{ font-size:19px; font-family:var(--body); font-weight:600; margin:30px 0 12px; }
.article-body p{ color:var(--ink); font-size:16px; margin-bottom:18px; }
.article-body p.lead{ font-size:18px; color:var(--slate); }
.article-body ul, .article-body ol{ margin:0 0 20px; padding-left:22px; }
.article-body li{ margin-bottom:9px; color:var(--ink); }
.article-body strong{ font-weight:600; }
.article-body a.inline-link{ color:var(--yield); text-decoration:underline; text-underline-offset:2px; }

.callout{
  background:var(--ink); color:var(--limestone); border-radius:var(--radius);
  padding:28px 30px; margin:34px 0; display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:18px;
}
.callout .c-item .c-label{ font-family:var(--mono); font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--slate-light); margin-bottom:6px; }
.callout .c-item .c-value{ font-family:var(--mono); font-size:22px; color:#7FD1A6; }

.pull{
  border-left:2px solid var(--yield); padding:4px 0 4px 22px; margin:30px 0;
  font-family:var(--display); font-style:italic; font-size:20px; color:var(--ink); line-height:1.4;
  font-weight:500;
}

.table-wrap{ overflow-x:auto; margin:24px 0; }
table.compare{ width:100%; border-collapse:collapse; font-size:14.5px; }
table.compare th, table.compare td{ text-align:left; padding:12px 14px; border-bottom:1px solid var(--line); }
table.compare th{ font-family:var(--mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.04em; color:var(--slate-light); font-weight:500; }
table.compare td.num{ font-family:var(--mono); color:var(--yield); }

/* CTA box */
.article-cta{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:32px; margin:44px 0; text-align:left; }
.article-cta h3{ font-size:20px; margin-bottom:10px; }
.article-cta p{ color:var(--slate); font-size:14.5px; margin-bottom:20px; max-width:52ch; }

/* Calculator */
.calc-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:36px; align-items:start; margin:36px 0 44px; }
@media (max-width:760px){ .calc-wrap{ grid-template-columns:1fr; } }
.calc-panel{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:30px; }
.calc-field{ margin-bottom:18px; }
.calc-field:has(.calc-hint){ margin-bottom:26px; }
.calc-field label{ display:block; font-family:var(--mono); font-size:12px; letter-spacing:.03em; color:var(--slate); margin-bottom:7px; }
.calc-field .calc-hint{ font-size:11.5px; color:var(--slate-light); margin-top:5px; }
.calc-input-row{ position:relative; }
.calc-input-row input, .calc-input-row select{
  width:100%; border:1px solid var(--line); border-radius:var(--radius);
  padding:11px 14px; font-family:var(--body); font-size:15px; color:var(--ink); background:var(--limestone-2);
}
.calc-input-row input:focus, .calc-input-row select:focus{ outline:2px solid var(--yield); outline-offset:1px; border-color:var(--yield); }
.calc-row-2{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
@media (max-width:480px){ .calc-row-2{ grid-template-columns:1fr; } }
.calc-advanced-toggle{
  font-family:var(--mono); font-size:12.5px; color:var(--yield); cursor:pointer; margin:6px 0 18px; display:inline-block;
  border-bottom:1px dotted var(--yield);
}
.calc-advanced{ display:none; }
.calc-advanced.open{ display:block; }

.calc-results{ position:sticky; top:96px; }
.calc-results .callout{ margin:0 0 20px; grid-template-columns:1fr 1fr; }
.calc-results .c-item.wide{ grid-column:1 / -1; padding-top:12px; border-top:1px solid var(--line-on-ink); }
.calc-note{ font-family:var(--mono); font-size:11.5px; color:var(--slate-light); margin-top:14px; }

.calc-expertise{
  background:var(--ink); color:var(--limestone); border-radius:var(--radius);
  padding:32px; margin:12px 0 44px;
}
.calc-expertise h3{ font-size:20px; color:var(--white); margin-bottom:14px; }
.calc-expertise p{ color:var(--slate-light); font-size:14.5px; margin-bottom:16px; max-width:62ch; }
.calc-expertise ul{ margin:0 0 22px; padding-left:20px; }
.calc-expertise li{ color:var(--limestone); font-size:14px; margin-bottom:9px; }
.calc-expertise .btn{ margin-top:4px; }
.calc-disclaimer{ font-family:var(--mono); font-size:11.5px; color:var(--slate-light); margin:18px 0 0; }

/* Author box */
.author-box{ display:flex; gap:18px; align-items:flex-start; padding:26px; background:var(--limestone); border-radius:var(--radius); margin-top:50px; }
.author-box img{ width:64px; height:64px; border-radius:50%; object-fit:cover; flex-shrink:0; }
.author-box .a-name{ font-family:var(--display); font-size:17px; margin-bottom:4px; }
.author-box .a-role{ font-family:var(--mono); font-size:12px; color:var(--slate); margin-bottom:8px; }
.author-box p{ font-size:13.5px; color:var(--slate); margin:0; }

/* Related articles */
.related{ background:var(--white); padding:60px 0; border-top:1px solid var(--line); }
.related h2{ font-size:22px; margin-bottom:26px; }
.related-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
@media (max-width:900px){ .related-grid{ grid-template-columns:1fr; } }
.related-card{ background:var(--limestone-2); border:1px solid var(--line); border-radius:var(--radius); padding:22px; }
.related-card .r-cat{ font-family:var(--mono); font-size:11px; text-transform:uppercase; color:var(--yield); margin-bottom:10px; }
.related-card h3{ font-family:var(--display); font-weight:500; font-size:18px; margin-bottom:8px; }
.related-card p{ font-size:13.5px; color:var(--slate); }

/* Footer (mirrors homepage) */
footer{ background:var(--ink-3); color:var(--slate-light); padding:44px 0 28px; }
.footer-top{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:24px; padding-bottom:28px; border-bottom:1px solid var(--line-on-ink); margin-bottom:20px; }
.footer-top .logo{ color:var(--limestone); }
.footer-links{ display:flex; gap:24px; flex-wrap:wrap; }
.footer-links a{ font-size:13.5px; }
.footer-links a:hover{ color:var(--limestone); }
.footer-bottom{ font-family:var(--mono); font-size:11.5px; }

/* Hub page (insights index) */
.hub-hero{ padding:64px 0 20px; }
.hub-hero h1{ font-size:clamp(32px,4.5vw,48px); margin:16px 0 14px; }
.hub-hero p{ color:var(--slate); font-size:17px; max-width:60ch; }
.hub-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; padding:44px 0 90px; }
@media (max-width:900px){ .hub-grid{ grid-template-columns:1fr; } }
.hub-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:28px; display:flex; flex-direction:column; height:100%; transition:transform .18s ease, border-color .18s ease; }
.hub-card:hover{ transform:translateY(-3px); border-color:var(--ink); }
.hub-card .h-cat{ font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:var(--yield); margin-bottom:14px; }
.hub-card h2{ font-size:20px; margin-bottom:10px; }
.hub-card p{ font-size:14px; color:var(--slate); margin-bottom:18px; }
.hub-card .h-read{ font-family:var(--mono); font-size:12.5px; color:var(--ink); margin-top:auto; }
.hub-card.featured-tool{ grid-column:1 / -1; background:var(--ink); border-color:var(--ink); flex-direction:row; align-items:center; gap:32px; padding:36px; }
.hub-card.featured-tool .ft-text{ flex:1; }
.hub-card.featured-tool .h-cat{ color:#7FD1A6; margin-bottom:12px; }
.hub-card.featured-tool h2{ color:var(--limestone); font-size:24px; margin-bottom:8px; }
.hub-card.featured-tool p{ color:var(--slate-light); margin-bottom:0; max-width:60ch; }
.hub-card.featured-tool .h-read{ color:#7FD1A6; margin-top:0; white-space:nowrap; flex-shrink:0; }
@media (max-width:760px){ .hub-card.featured-tool{ flex-direction:column; align-items:flex-start; } }