:root {
  --paper: #f7f8f7;
  --white: #fff;
  --ink: #102b39;
  --soft: #40545d;
  --line: rgba(16,43,57,.15);
  --gold: #a88850;
  --aqua: #dcebea;
  --aqua-dark: #2c686b;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 1rem; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.shell { width: min(calc(100% - 3rem), var(--max)); margin-inline: auto; }
.lang-en { display: none !important; }
body[data-language="en"] .lang-de { display: none !important; }
body[data-language="en"] .lang-en { display: revert !important; }
.lang-inline { display: inline; }
body[data-language="en"] .lang-en.lang-inline { display: inline !important; }
header { position: sticky; top: 0; z-index: 20; background: rgba(247,248,247,.93); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.nav { min-height: 5.15rem; display: flex; align-items: center; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .75rem; text-decoration: none; white-space: nowrap; }
.brand svg { width: 2rem; color: var(--gold); }
.brand-copy { display: grid; line-height: 1.15; }
.brand-name { font-family: var(--serif); font-size: 1.05rem; }
.brand-site { color: var(--soft); font-size: .65rem; letter-spacing: .14em; text-transform: uppercase; }
.nav-links { display: flex; gap: 1rem; margin-left: auto; align-items: center; }
.nav-links a { font-size: .72rem; letter-spacing: .07em; text-transform: uppercase; text-decoration: none; }
.languages { display: inline-flex; border: 1px solid var(--line); border-radius: 99px; padding: .18rem; }
.languages button { border: 0; border-radius: 99px; padding: .35rem .52rem; background: transparent; color: var(--soft); font: inherit; font-size: .72rem; cursor: pointer; }
.languages button[aria-pressed="true"] { background: var(--ink); color: white; }
.hero { padding: clamp(5rem,10vw,9rem) 0 clamp(4rem,8vw,7rem); border-bottom: 1px solid var(--line); }
.back { display: inline-flex; gap: .55rem; align-items: center; color: var(--aqua-dark); font-size: .76rem; font-weight: 650; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.kicker { margin: 3rem 0 .8rem; color: var(--aqua-dark); font-size: .75rem; font-weight: 650; letter-spacing: .15em; text-transform: uppercase; }
h1 { max-width: 13ch; margin: 0; font-family: var(--serif); font-size: clamp(3rem,7vw,6.5rem); font-weight: 400; line-height: .96; letter-spacing: -.045em; }
.lead { max-width: 46rem; margin: 2rem 0 0; font-family: var(--serif); font-size: clamp(1.25rem,2.2vw,1.75rem); line-height: 1.45; color: var(--soft); }
.content { padding: clamp(4rem,8vw,7rem) 0; }
.content-grid { display: grid; grid-template-columns: .62fr 1.38fr; gap: clamp(2rem,8vw,7rem); align-items: start; }
.aside { position: sticky; top: 7rem; }
.aside-label { color: var(--aqua-dark); font-size: .72rem; font-weight: 650; letter-spacing: .13em; text-transform: uppercase; }
.aside nav { display: grid; margin-top: 1rem; border-top: 1px solid var(--line); }
.aside a { padding: .7rem 0; border-bottom: 1px solid var(--line); color: var(--soft); text-decoration: none; font-size: .86rem; }
.article { max-width: 47rem; }
.article section + section { margin-top: 3.5rem; padding-top: 3.5rem; border-top: 1px solid var(--line); }
h2 { margin: 0 0 1rem; font-family: var(--serif); font-size: clamp(2rem,4vw,3.5rem); font-weight: 400; line-height: 1.08; letter-spacing: -.025em; }
h3 { margin: 1.8rem 0 .55rem; font-family: var(--serif); font-size: 1.35rem; font-weight: 400; }
p { color: var(--soft); }
ul { padding-left: 1.15rem; color: var(--soft); }
li + li { margin-top: .45rem; }
.note { margin-top: 2rem; padding: 1.3rem 1.45rem; background: var(--aqua); border-left: 2px solid var(--gold); color: var(--ink); }
.article-figure { margin: 2.5rem 0 0; }
.article-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
.article-figure figcaption { margin-top: .65rem; color: var(--soft); font-size: .78rem; letter-spacing: .03em; }
.compact-figure { width: min(100%, 20rem); margin-inline: auto; }
.treatments { margin-top: 2rem; border-top: 1px solid var(--line); }
.treatment { border-bottom: 1px solid var(--line); }
.treatment summary { position: relative; padding: 1rem 2rem 1rem 0; color: var(--ink); cursor: pointer; font-family: var(--serif); font-size: 1.2rem; list-style: none; }
.treatment summary::-webkit-details-marker { display: none; }
.treatment summary::after { content: "+"; position: absolute; right: .25rem; color: var(--aqua-dark); font-family: var(--sans); }
.treatment[open] summary::after { content: "–"; }
.treatment[open] { padding-bottom: .8rem; }
.treatment p { margin: .4rem 0 1rem; }
.action-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.button { display: inline-flex; min-height: 3rem; align-items: center; justify-content: center; padding: .72rem 1.1rem; border: 1px solid var(--ink); text-decoration: none; font-size: .78rem; font-weight: 650; letter-spacing: .07em; text-transform: uppercase; }
.button.primary { background: var(--ink); color: white; }
.button.ghost { background: transparent; }
.next { padding: clamp(3rem,7vw,5rem) 0; background: var(--white); border-top: 1px solid var(--line); }
.next-grid { display: flex; justify-content: space-between; gap: 1.5rem; align-items: center; }
.next h2 { max-width: 18ch; margin: 0; font-size: clamp(1.8rem,3.5vw,3rem); }
footer { padding: 1.7rem 0; background: #0a202b; color: #a8bac0; font-size: .78rem; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .75rem 1.5rem; }
@media (max-width: 1040px) {
  .nav-links a { display: none; }
  .content-grid { grid-template-columns: 1fr; }
  .aside { position: static; }
  .aside nav { grid-template-columns: repeat(3,1fr); }
  .aside a { padding-right: .5rem; }
}
@media (max-width: 620px) {
  .shell { width: min(calc(100% - 2rem), var(--max)); }
  .nav { min-height: 4.7rem; gap: .7rem; }
  .brand-site { display: none; }
  .brand-name { font-size: .94rem; }
  .languages { margin-left: auto; }
  .hero { padding-top: 4rem; }
  h1 { font-size: clamp(2.7rem,14vw,4rem); }
  .aside nav { grid-template-columns: 1fr 1fr; }
  .action-row, .next-grid { display: grid; }
  .button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }