/* Release Notes – Präfix rn-
   Übersicht /release-notes/ und alle Versionsseiten /release-notes/release-notes-version-…/
   (erzeugt mit tools/seiten/release_notes.py). Baut auf style.css auf (page-hero, breadcrumb,
   section, section-head, eyebrow, btn). Mobile first, Breakpoints wie style.css (480/640/768/1024/1200).
   Aufbau Versionsseite: Seitenkopf, Text von www (.rn-article) mit Abschnitten (.rn-sec),
   Zwischenüberschriften (.rn-divider), Spalten (.rn-row) und Bildern; Seitenleiste (.rn-side) mit
   allen Versionen, ab 1024 px links neben dem Text, darunter unter dem Text. */

/* ---------- Seitenkopf ---------- */

.rn-hero__date { margin-top: 1rem; color: var(--muted); font-size: .9375rem; font-weight: 700; }
.rn-hero__date + .page-hero__lead { margin-top: .5rem; }
.rn-hero__visual { max-width: min(100%, 340px); margin-inline: auto; }
.rn-hero__img { width: 100%; height: auto; }

/* ---------- Versionsseite: Raster mit Seitenleiste ---------- */

.rn-body { padding-top: clamp(1rem, 3vw, 2rem); }
.rn-layout { display: grid; gap: clamp(2.5rem, 6vw, 3.5rem); align-items: start; }
.rn-article { min-width: 0; }

/* Abschnitte: weiße Kachel je www-Abschnitt */
.rn-sec {
  padding: clamp(1.25rem, 4vw, 2.25rem);
  border-radius: var(--radius-l); background: var(--tile); box-shadow: var(--shadow-s);
  line-height: 1.7; overflow-wrap: break-word;
}
.rn-sec + .rn-sec { margin-top: clamp(1.25rem, 3vw, 1.75rem); }
.rn-sec > * + *, .rn-col > * + *, .rn-box__body > * + * { margin-top: 1rem; }
/* Fließtext über die volle Kachelbreite höchstens ~80 Zeichen je Zeile */
.rn-sec > :is(p, ul, ol, h3) { max-width: 42rem; }
.rn-sec h2:not(.rn-divider) { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); line-height: 1.2; }
.rn-sec h3 { margin-top: 1.75rem; font-size: clamp(1.125rem, 1.05rem + .3vw, 1.25rem); }
.rn-sec h3:first-child, .rn-sec h2 + h3 { margin-top: 0; }
.rn-sec a:not(.btn) { font-weight: 700; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; overflow-wrap: anywhere; }
.rn-sec a:not(.btn):hover { text-decoration-thickness: 2px; }
.rn-sec em { font-style: italic; }

/* Zwischenüberschrift (www: Text-Trenner) mit Linie bis zum Rand */
.rn-sec .rn-divider {
  display: flex; align-items: center; gap: .9rem;
  color: var(--primary); font-size: clamp(1.1875rem, 1.1rem + .45vw, 1.4375rem); line-height: 1.3;
}
.rn-divider::after { content: ""; flex: 1 1 2rem; height: 3px; border-radius: 99px; background: var(--gradient); opacity: .35; }
.rn-divider span { min-width: 0; }
.rn-sec > .rn-divider:not(:first-child), .rn-col > .rn-divider:not(:first-child) { margin-top: 2rem; }
.rn-sec > .rn-divider + *, .rn-col > .rn-divider + * { margin-top: .75rem; }

/* Listen: türkiser Kreis mit weißem Haken wie in den Artikeln */
.rn-sec ul:not([class]) { display: grid; gap: .6rem; }
.rn-sec ul:not([class]) > li { position: relative; padding-left: 2rem; text-wrap: pretty; }
.rn-sec ul:not([class]) > li::before {
  content: ""; position: absolute; left: 0; top: .3em; width: 1.25rem; height: 1.25rem; border-radius: 50%;
  background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath fill='%23fff' d='M438.6 105.4c12.5 12.5 12.5 32.8 0 45.3l-256 256c-12.5 12.5-32.8 12.5-45.3 0l-128-128c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0L160 338.7 393.4 105.4c12.5-12.5 32.8-12.5 45.3 0z'/%3E%3C/svg%3E") center / .65rem no-repeat;
}

/* Spalten (www: Divi-Zeilen); bis 767 px untereinander */
.rn-row { display: grid; gap: 1.25rem 2rem; align-items: start; }
.rn-sec > .rn-row:not(:first-child), .rn-col > .rn-row:not(:first-child) { margin-top: 1.5rem; }
.rn-sec > .rn-row + *, .rn-col > .rn-row + * { margin-top: 1.5rem; }
.rn-col { min-width: 0; }

/* Bilder und Videos */
.rn-fig { margin: 0; }
.rn-img, .rn-video video {
  width: auto; max-width: 100%; height: auto;
  border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--white); box-shadow: var(--shadow-s);
}
/* Große Bilder (mit srcset) füllen die Spalte; kleine Screenshots bleiben in Originalgröße */
.rn-img[srcset] { width: 100%; }
.rn-video video { display: block; width: 100%; background: var(--tile-2); }

/* Vorher/Nachher (www: Schieberegler): beide Bilder beschriftet, nebeneinander ab 640 px */
.rn-compare { display: grid; gap: 1.25rem; }
.rn-compare__item { margin: 0; }
.rn-compare__item img { width: 100%; border: 1px solid var(--line); border-radius: var(--radius-s); box-shadow: var(--shadow-s); }
.rn-compare__item figcaption {
  display: inline-block; margin-top: .6rem; padding: .2rem .75rem; border-radius: 99px;
  background: var(--tile-2); color: var(--primary); font-size: .8125rem; font-weight: 900; letter-spacing: .08em; line-height: 1.6; text-transform: uppercase;
}
.rn-compare__item + .rn-compare__item figcaption { background: var(--accent-50); color: var(--accent-700); }

/* Sprungmarken innerhalb einer Version */
.rn-jump__list { display: flex; flex-wrap: wrap; gap: .6rem; }
.rn-sec .rn-jump a {
  display: inline-flex; align-items: center; min-height: 44px; padding: .4rem 1rem;
  border: 1px solid var(--line); border-radius: 99px; background: var(--bg);
  color: var(--primary); font-size: .9375rem; font-weight: 700; line-height: 1.3; text-decoration: none;
  transition: border-color .2s, background-color .2s;
}
.rn-sec .rn-jump a:hover { border-color: var(--primary); background: var(--white); }
.rn-sec:has(> .rn-jump:only-child) { padding-block: 1rem; }

/* Kästen (www: Blurb „Tipp“, „Videos“) */
.rn-box {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1rem; align-items: start;
  padding: clamp(1.1rem, 3vw, 1.5rem);
  border-left: 4px solid var(--accent); border-radius: var(--radius-s); background: var(--bg);
}
.rn-sec > .rn-box:not(:first-child) { margin-top: 1.75rem; }
.rn-box__icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: var(--gradient); color: var(--white); }
.rn-box__icon .icon { width: 18px; height: 18px; }
.rn-sec .rn-box__title { margin-top: .45rem; font-size: 1.125rem; }
.rn-box__body > .rn-box__title + * { margin-top: .5rem; }

/* Buttons im Text: Beschriftung darf umbrechen */
.rn-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.rn-actions .btn { max-width: 100%; white-space: normal; text-align: center; }

/* Blättern zur älteren/neueren Version */
.rn-pager { display: grid; gap: .75rem; margin-top: clamp(1.25rem, 3vw, 1.75rem); }
.rn-pager__link {
  display: flex; align-items: center; gap: .9rem; min-height: 64px; padding: .85rem 1.15rem;
  border-radius: var(--radius); background: var(--tile); box-shadow: var(--shadow-s);
  color: var(--ink); line-height: 1.3; text-decoration: none;
  transition: box-shadow .2s, transform .2s var(--ease);
}
.rn-pager__link:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.rn-pager__link .icon { width: 14px; height: 14px; color: var(--accent-700); }
.rn-pager__link > span { display: grid; gap: .1rem; }
.rn-pager__link--next { justify-content: flex-end; text-align: right; }
.rn-pager__label { color: var(--muted); font-size: .8125rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.rn-pager__title { color: var(--primary); font-weight: 900; }

/* Seitenleiste: alle Versionen und Hinweis zur Versionsnummer */
.rn-side { display: grid; gap: 1rem; min-width: 0; }
.rn-side__card { padding: 1.25rem 1.25rem 1rem; border-radius: var(--radius); background: var(--tile); box-shadow: var(--shadow-s); }
.rn-side__title {
  display: flex; align-items: center; gap: .65rem; margin-bottom: .6rem;
  color: var(--primary); font-size: .8125rem; font-weight: 900; letter-spacing: .12em; line-height: 1.4; text-transform: uppercase;
}
.rn-side__title::before { content: ""; width: 32px; height: 5px; flex: none; border-radius: 99px; background: var(--gradient); }
/* bis 1023 px als zweispaltiges Raster, ab 1024 px als Liste */
.rn-versions { display: grid; grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr)); gap: .25rem .75rem; }
.rn-versions a {
  display: flex; align-items: center; gap: .4rem; min-height: 44px; padding: .4rem .75rem;
  border-left: 3px solid var(--line); border-radius: 0 6px 6px 0;
  color: var(--text); font-size: .9375rem; font-weight: 700; line-height: 1.3; text-decoration: none;
  transition: border-color .2s, background-color .2s, color .2s;
}
.rn-versions a:hover { border-left-color: var(--accent); background: var(--bg); color: var(--primary); }
.rn-versions a[aria-current="page"] { border-left-color: var(--primary); background: var(--tile-2); color: var(--primary); }
.rn-versions .icon { width: .8em; height: .8em; color: var(--muted); }
.rn-side__back {
  display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; margin-top: .5rem;
  color: var(--primary); font-size: .9375rem; font-weight: 700; text-decoration: none;
}
.rn-side__back .icon { width: 12px; height: 12px; }
.rn-side__back:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Aufklappbarer Hinweis „Wo finde ich meine Versionsnummer?“ (wie FAQ in style.css) */
.rn-faq { border-radius: var(--radius); background: var(--tile); box-shadow: var(--shadow-s); transition: box-shadow .2s; }
.rn-faq[open] { box-shadow: var(--shadow); }
.rn-faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: 56px; padding: .9rem 1.25rem;
  color: var(--ink); font-weight: 700; line-height: 1.35; list-style: none; cursor: pointer;
}
.rn-faq summary::-webkit-details-marker { display: none; }
.rn-faq summary .icon { width: 16px; height: 16px; color: var(--accent); transition: transform .3s var(--ease); }
.rn-faq[open] summary .icon { transform: rotate(180deg); }
.rn-faq p { padding: 0 1.25rem 1.25rem; color: var(--muted); line-height: 1.6; }

/* ---------- Übersicht ---------- */

.rn-overview { padding-top: clamp(1rem, 3vw, 2rem); }
.rn-ov { display: grid; gap: clamp(2.5rem, 6vw, 4rem); align-items: start; }
.rn-ov__list, .rn-ov__info { min-width: 0; }
.rn-ov .section-head { margin-bottom: 1.5rem; }
.rn-ov .section-head h2 { font-size: clamp(1.625rem, 1.3rem + 1.4vw, 2.25rem); }
.rn-ov__info { display: grid; gap: 1rem; }

.rn-cards { display: grid; gap: .75rem; }
.rn-card {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: 72px; padding: 1rem 1.25rem;
  border-radius: var(--radius); background: var(--tile); box-shadow: var(--shadow-s);
  color: var(--ink); text-decoration: none;
  transition: box-shadow .2s, transform .2s var(--ease);
}
.rn-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.rn-card__body { display: grid; gap: .15rem; min-width: 0; line-height: 1.35; }
.rn-card__title { color: var(--primary); font-size: 1.125rem; font-weight: 900; }
.rn-card__date { color: var(--muted); font-size: .9375rem; }
.rn-card .icon { width: 16px; height: 16px; color: var(--accent-700); transition: transform .2s var(--ease); }
.rn-card:hover .icon { transform: translateX(3px); }
.rn-card--archiv { background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.rn-card--archiv:hover .icon { transform: none; }

.rn-info {
  padding: clamp(1.25rem, 4vw, 2rem);
  border-radius: var(--radius-l); background: var(--tile); box-shadow: var(--shadow-s);
  line-height: 1.7; overflow-wrap: anywhere;
}
.rn-info > * + * { margin-top: 1rem; }
.rn-info__title { font-size: clamp(1.375rem, 1.15rem + .9vw, 1.75rem); line-height: 1.2; }
.rn-info__title::before { content: ""; display: block; width: 48px; height: 5px; margin-bottom: 1rem; border-radius: 99px; background: var(--gradient); }
.rn-info a { font-weight: 700; text-underline-offset: 3px; }

/* ---------- Breakpoints ---------- */

@media (max-width: 479px) {
  /* Kasten: Symbol über dem Text, damit der Text die volle Breite hat */
  .rn-box { grid-template-columns: 1fr; gap: .75rem; }
  .rn-sec .rn-box__title { margin-top: 0; }
}

@media (min-width: 640px) {
  .rn-compare { grid-template-columns: 1fr 1fr; }
  .rn-pager { grid-template-columns: 1fr 1fr; }
  .rn-pager__link--next:only-child { grid-column: 2; }
}

@media (min-width: 768px) {
  .rn-row--1-1 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rn-row--2-1 { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
  .rn-row--1-2 { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
  .rn-row--3-2 { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
  .rn-row--2-3 { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); }
  .rn-row--3-1 { grid-template-columns: minmax(0, 3fr) minmax(0, 1fr); }
  .rn-row--1-3 { grid-template-columns: minmax(0, 1fr) minmax(0, 3fr); }
  .rn-row--1-1-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rn-row--1-1-2 > .rn-col:last-child { grid-column: 1 / -1; }
  /* Bild, Text, Bild: bis 1199 px beide Bilder nebeneinander, Text darunter */
  .rn-row--1-2-1 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rn-row--1-2-1 > .rn-col:nth-child(2) { grid-column: 1 / -1; grid-row: 2; }
  .rn-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .rn-hero__visual { max-width: 560px; }
  /* Seitenleiste links (wie auf www), Text rechts; im Quelltext folgt die Leiste auf den Text */
  .rn-layout { grid-template-columns: minmax(0, 15.5rem) minmax(0, 1fr); grid-template-areas: "side article"; gap: 2.5rem; }
  .rn-article { grid-area: article; }
  .rn-side { grid-area: side; }
  .rn-versions { grid-template-columns: 1fr; gap: .1rem; }
  .rn-ov { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
  .rn-cards { grid-template-columns: 1fr; }
  .rn-hero .page-hero__actions { display: none; }
}

/* Mitlaufen nur, wenn die Seitenleiste ganz in den Bildschirm passt */
@media (min-width: 1024px) and (min-height: 900px) {
  .rn-side, .rn-ov__info { position: sticky; top: calc(var(--header-h) + var(--header-gap) + 1.5rem); }
}

@media (min-width: 1200px) {
  .rn-row--1-1-2 { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 2fr); }
  .rn-row--1-1-2 > .rn-col:last-child { grid-column: auto; }
  .rn-row--1-2-1 { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr) minmax(0, 1fr); }
  .rn-row--1-2-1 > .rn-col:nth-child(2) { grid-column: auto; grid-row: auto; }
}