*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
::selection { background: var(--color-accent); color: var(--color-on-accent); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-on-accent);
  padding: var(--space-3) var(--space-4);
  z-index: 200;
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

/* Layout-Primitive */
.section { padding: clamp(64px, 9vw, 112px) clamp(24px, 5vw, 56px); }
.section--paper { background: var(--color-paper); }
.section--surface { background: var(--color-surface); }
.section__inner { max-width: var(--container); margin-inline: auto; }

.eyebrow {
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 500;
  margin: 0 0 var(--space-4);
}

.lede {
  font-size: var(--fs-body-lg);
  line-height: 1.6;
  color: var(--color-ink-soft);
  max-width: 56ch;
}
.lede p { margin: 0; }

a { color: var(--color-accent); }
a:hover { color: var(--color-accent-deep); }

.button {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-family: var(--font-serif);
  font-size: var(--fs-body);
  font-weight: 500;
  line-height: 1.2;
  padding: 14px 26px;
  border: 0;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease;
}
.button:hover { background: var(--color-accent-deep); color: var(--color-on-accent); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-paper);
  border-bottom: var(--border-hairline);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  max-width: var(--container);
  margin-inline: auto;
  padding: 18px clamp(24px, 5vw, 56px);
}
.site-header__brand { display: block; text-decoration: none; color: var(--color-ink); }
.site-header__name { display: block; font-size: 1.3125rem; letter-spacing: var(--ls-tight); }
.site-header__subline {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 500;
  margin-top: 3px;
}

.site-header__checkbox { display: none; }
.site-header__burger { display: none; }

.site-nav { display: flex; align-items: center; gap: var(--space-8); }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav__link { font-size: 0.9375rem; color: var(--color-ink-soft); text-decoration: none; }
.site-nav__link:hover { color: var(--color-ink); }
.site-nav__cta {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 12px 22px;
  text-decoration: none;
}
.site-nav__cta:hover { background: var(--color-accent-deep); color: var(--color-on-accent); }
.site-nav__close { display: none; }

@media (max-width: 820px) {
  .site-header__burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    cursor: pointer;
  }
  .site-header__burger-line { display: block; width: 22px; height: 1px; background: var(--color-ink); }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 150;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    background: var(--color-paper);
    padding: 88px clamp(24px, 7vw, 40px) 40px;
    transform: translateX(100%);
    transition: transform 0.2s ease;
    overflow-y: auto;
  }
  .site-header__checkbox:checked ~ .site-nav { transform: translateX(0); }

  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__item { border-bottom: var(--border-hairline); }
  .site-nav__link {
    display: block;
    padding: 20px 0;
    font-size: 1.75rem;
    letter-spacing: var(--ls-tight);
    color: var(--color-ink);
  }
  .site-nav__cta { margin-top: var(--space-8); text-align: center; font-size: 1.0625rem; padding: 15px; }

  .site-nav__close {
    display: block;
    position: absolute;
    top: 24px;
    right: clamp(24px, 7vw, 40px);
    width: 28px;
    height: 28px;
    cursor: pointer;
  }
  .site-nav__close::before,
  .site-nav__close::after {
    content: "";
    position: absolute;
    top: 13px;
    left: 3px;
    width: 22px;
    height: 1px;
    background: var(--color-ink);
  }
  .site-nav__close::before { transform: rotate(45deg); }
  .site-nav__close::after { transform: rotate(-45deg); }
}

/* Footer */
.site-footer { background: var(--color-ink); color: var(--color-on-accent); }
.site-footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-8);
  flex-wrap: wrap;
  max-width: var(--container);
  margin-inline: auto;
  padding: 56px clamp(24px, 5vw, 56px);
}
.site-footer__name { display: block; font-size: 1.25rem; letter-spacing: var(--ls-tight); }
.site-footer__subline {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 500;
  margin-top: 4px;
}
.site-footer__nav { display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }
.site-footer__link { font-size: 0.9375rem; color: var(--color-line); text-decoration: underline; text-underline-offset: 3px; }
.site-footer__link:hover { color: var(--color-on-accent); }
.site-footer__membership {
  font-size: 0.75rem;
  color: var(--color-muted);
  border: 1px solid var(--color-ink-soft);
  padding: 8px 12px;
  letter-spacing: 0.04em;
}

/* Rechtsseiten */
.legal__inner { max-width: var(--measure); }
.legal__title { font-size: clamp(1.75rem, 4vw, 2rem); font-weight: 500; line-height: var(--lh-snug); color: var(--color-ink); margin: 0 0 var(--space-12); }
.legal__body { font-size: var(--fs-body); line-height: var(--lh-body); color: var(--color-ink-soft); }
.legal__body h2 { font-size: var(--fs-h3); font-weight: 500; color: var(--color-ink); margin: var(--space-12) 0 var(--space-4); }
.legal__body p { margin: 0 0 var(--space-6); }
.legal__body a { text-underline-offset: 3px; }