/* PowerfulWebsite Blog — calm Nordic reading theme */
:root {
  --paper: #faf8f3;
  --paper-soft: #f3efe6;
  --ink: #2c2620;
  --ink-soft: #5c554b;
  --ink-faint: #8a8177;
  --accent: #a34e2c;
  --accent-soft: #f5e6dc;
  --line: #e5ddd0;
  --card: #ffffff;
  --radius: 14px;
  --measure: 68ch;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.13rem;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

/* thin reading progress bar */
#progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--accent); z-index: 100;
}

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap {
  max-width: 1100px; margin: 0 auto; padding: 0.9rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--sans);
}
.brand { font-weight: 700; font-size: 1.05rem; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
.site-nav a { color: var(--ink-soft); text-decoration: none; margin-left: 1.4rem; font-size: 0.95rem; }
.site-nav a:hover { color: var(--accent); }
.lang-switch { font-size: 0.85rem; color: var(--ink-faint); }
.lang-switch a { color: var(--ink-faint); text-decoration: none; margin: 0 0.3rem; }
.lang-switch a.active { color: var(--accent); font-weight: 700; }

/* ---------- article layout ---------- */
.article-wrap { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; display: grid; grid-template-columns: 220px minmax(0, var(--measure)); gap: 3.5rem; justify-content: center; }
article { min-width: 0; padding: 3rem 0 4rem; }

.breadcrumb { font-family: var(--sans); font-size: 0.82rem; color: var(--ink-faint); margin-bottom: 1.6rem; }
.breadcrumb a { color: var(--ink-faint); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }

h1 {
  font-family: var(--sans); font-weight: 750; letter-spacing: -0.02em;
  font-size: clamp(1.9rem, 4vw, 2.7rem); line-height: 1.2; margin: 0 0 1.2rem;
}
.lede { font-size: 1.28rem; line-height: 1.7; color: var(--ink-soft); margin: 0 0 1.6rem; }
.lede::first-letter { /* direct-answer lead, no drop cap here */ }
.article-meta { font-family: var(--sans); font-size: 0.85rem; color: var(--ink-faint); margin-bottom: 2.2rem; padding-bottom: 1.6rem; border-bottom: 1px solid var(--line); }

.hero-figure { margin: 0 0 2.6rem; }
.hero-figure img, .inline-figure img {
  width: 100%; height: auto; display: block; border-radius: var(--radius);
  box-shadow: 0 18px 45px -22px rgba(60, 45, 30, 0.35);
}
figcaption { font-family: var(--sans); font-size: 0.82rem; color: var(--ink-faint); margin-top: 0.7rem; font-style: italic; }
.inline-figure { margin: 2.6rem 0; }

article p { margin: 0 0 1.5rem; }
article > p:first-of-type::first-letter {
  font-size: 3.4em; float: left; line-height: 0.85; padding-right: 0.12em;
  font-weight: 700; color: var(--accent);
}
article h2 {
  font-family: var(--sans); font-weight: 700; letter-spacing: -0.015em;
  font-size: 1.55rem; line-height: 1.35; margin: 3.2rem 0 1.1rem;
  scroll-margin-top: 90px;
}
article h3 { font-family: var(--sans); font-size: 1.18rem; margin: 2.2rem 0 0.8rem; scroll-margin-top: 90px; }
article a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
article a:hover { text-decoration-thickness: 2px; }
article ul, article ol { margin: 0 0 1.6rem; padding-left: 1.4rem; }
article li { margin-bottom: 0.55rem; }
article li::marker { color: var(--accent); }

.pullquote {
  margin: 2.8rem 0; padding: 0.4rem 0 0.4rem 1.6rem;
  border-left: 3px solid var(--accent);
  font-size: 1.42rem; font-style: italic; line-height: 1.6; color: var(--ink);
}

.factbox {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem 1.8rem; margin: 2.4rem 0; font-size: 1rem;
}
.factbox h4 { font-family: var(--sans); margin: 0 0 0.7rem; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); }
.factbox p:last-child { margin-bottom: 0; }

table { width: 100%; border-collapse: collapse; margin: 2rem 0; font-family: var(--sans); font-size: 0.92rem; }
th, td { text-align: left; padding: 0.8rem 1rem; border-bottom: 1px solid var(--line); }
th { background: var(--paper-soft); font-weight: 700; }
tr:last-child td { border-bottom: none; }

/* FAQ accordion */
.faq { margin: 2rem 0; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 10px; margin-bottom: 0.7rem; }
.faq summary { cursor: pointer; padding: 1.1rem 1.4rem; font-family: var(--sans); font-weight: 600; font-size: 1rem; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--accent); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 1.4rem 1.2rem; margin: 0; font-size: 1.02rem; }

/* CTA */
.cta-card {
  background: linear-gradient(160deg, #fffdf9, var(--accent-soft));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2.4rem; margin: 3.5rem 0 1rem; text-align: center;
}
.cta-card h3 { font-family: var(--sans); margin: 0 0 0.8rem; font-size: 1.35rem; }
.cta-card p { color: var(--ink-soft); margin: 0 0 1.4rem; font-size: 1.02rem; }
.cta-btn {
  display: inline-block; font-family: var(--sans); font-weight: 700;
  background: var(--accent); color: #fff !important; text-decoration: none !important;
  padding: 0.85rem 2.2rem; border-radius: 999px; font-size: 1rem;
}
.cta-btn:hover { filter: brightness(1.08); }

/* ---------- TOC sidebar ---------- */
.toc { position: sticky; top: 110px; align-self: start; font-family: var(--sans); font-size: 0.86rem; padding-top: 3rem; }
.toc h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); margin: 0 0 0.8rem; }
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc li { margin-bottom: 0.55rem; line-height: 1.45; }
.toc a { color: var(--ink-faint); text-decoration: none; border-left: 2px solid var(--line); padding-left: 0.8rem; display: block; }
.toc a:hover, .toc a.active { color: var(--accent); border-left-color: var(--accent); }

/* ---------- homepage ---------- */
.home-hero { max-width: 760px; margin: 0 auto; text-align: center; padding: 4.5rem 1.5rem 3rem; }
.home-hero h1 { font-size: clamp(2.1rem, 5vw, 3.2rem); }
.home-hero p { color: var(--ink-soft); font-size: 1.2rem; }
.card-grid { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem 5rem; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.6rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: inherit; display: block; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 20px 40px -20px rgba(60,45,30,0.3); }
.card img { width: 100%; height: 190px; object-fit: cover; display: block; }
.card-body { padding: 1.4rem 1.5rem 1.6rem; }
.card-body h2 { font-family: var(--sans); font-size: 1.12rem; margin: 0 0 0.6rem; line-height: 1.4; }
.card-body p { font-size: 0.98rem; color: var(--ink-soft); margin: 0; line-height: 1.6; }
.card-meta { font-family: var(--sans); font-size: 0.78rem; color: var(--ink-faint); margin-top: 0.9rem; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); font-family: var(--sans); font-size: 0.88rem; color: var(--ink-faint); }
.site-footer .wrap { max-width: 1100px; margin: 0 auto; padding: 2.2rem 1.5rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.site-footer a { color: var(--ink-soft); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }

@media (max-width: 900px) {
  .article-wrap { grid-template-columns: minmax(0, var(--measure)); gap: 0; justify-content: center; }
  .toc { display: none; }
  body { font-size: 1.06rem; }
}