/* Bereich „Isartalbahn“ – Übersicht und Geschichte */
.ib-note { position: relative; z-index: 5; padding: 7px 16px; text-align: center; font-size: 12.5px; line-height: 1.4; background: var(--gold-deep); color: #fff; }
.ib-note span { opacity: .9; }
@media (max-width: 640px) { .ib-note span { display: none; } }

.ib-hero { border-bottom: 0; padding-bottom: 36px; }
.ib-hero .eyebrow a { color: inherit; }

/* ---------- Übersicht: zwei Kacheln ---------- */
.ib-hub { padding-top: 8px; }
.ib-tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.ib-tile { position: relative; display: flex; flex-direction: column; justify-content: flex-end; min-height: clamp(380px, 46vw, 560px); border-radius: var(--radius); overflow: hidden; color: #fff; text-decoration: none; background: var(--ink-deep); box-shadow: var(--shadow); isolation: isolate; }
.ib-tile-img, .ib-tile-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ib-tile-img { z-index: -2; }
.ib-tile-img img { transition: transform 1.2s var(--ease); filter: saturate(.9); }
.ib-tile-img .card-placeholder { display: grid; place-items: center; height: 100%; }
.ib-tile::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(28, 28, 26, 0) 25%, rgba(28, 28, 26, .55) 55%, rgba(28, 28, 26, .92) 100%); }
.ib-tile-body { display: grid; gap: 10px; padding: clamp(24px, 3.2vw, 40px); }
.ib-tile-k { font-size: .78rem; font-weight: 700; letter-spacing: .2em; color: var(--gold); }
.ib-tile b { font-size: clamp(2rem, 3.6vw, 3.1rem); line-height: 1; text-transform: uppercase; letter-spacing: -.035em; }
.ib-tile-t { max-width: 34em; color: rgba(255, 255, 255, .86); font-size: .98rem; line-height: 1.55; }
.ib-tile-go { display: inline-flex; align-items: center; gap: 10px; justify-self: start; margin-top: 8px; padding: 11px 20px; border-radius: 999px; background: var(--gold-button); font-weight: 700; font-size: .9rem; transition: background .25s, gap .25s var(--ease); }
.ib-tile-go i { font-style: normal; }
.ib-tile:hover .ib-tile-img img, .ib-tile:focus-visible .ib-tile-img img { transform: scale(1.05); }
.ib-tile:hover .ib-tile-go { background: var(--gold-button-hover); gap: 16px; }
.ib-tile:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }

.ib-facts { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 40px 0 0; padding: 0; border-top: 1px solid var(--line); }
.ib-facts li { display: grid; gap: 2px; padding: 22px 18px 0 0; }
.ib-facts b { font-size: clamp(1.6rem, 2.6vw, 2.2rem); line-height: 1; color: var(--gold-deep); letter-spacing: -.03em; }
.ib-facts span { font-size: .88rem; color: var(--muted); }

@media (max-width: 820px) {
  .ib-tiles { grid-template-columns: 1fr; gap: 18px; }
  .ib-tile { min-height: 340px; }
  .ib-facts { grid-template-columns: 1fr 1fr; row-gap: 18px; }
}

/* ---------- Geschichte ---------- */
.ib-toc { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.ib-toc a { padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-size: .86rem; font-weight: 600; text-decoration: none; color: var(--ink); transition: border-color .2s, color .2s; }
.ib-toc a:hover { border-color: var(--gold); color: var(--gold-deep); }

.ib-g h2 { font-size: clamp(1.6rem, 3vw, 2.6rem); }
.ib-muted { color: var(--muted); margin: -.3em 0 1em; font-size: .9rem; }

.ib-intro { padding-top: 40px; }
.ib-intro-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 5vw, 72px); align-items: start; }
.ib-intro-text p { font-size: 1.05rem; }
.ib-pearls { padding: 30px 30px 24px; border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-s); }
.ib-pearls h3 { margin-bottom: .3em; }
.ib-pearls ol { list-style: none; margin: 0; padding: 0; position: relative; }
.ib-pearls ol::before { content: ""; position: absolute; left: 7px; top: 10px; bottom: 10px; width: 2px; background: var(--gold-soft); }
.ib-pearls li { position: relative; display: grid; padding: 8px 0 8px 32px; line-height: 1.35; }
.ib-pearls li::before { content: ""; position: absolute; left: 0; top: 12px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--gold); box-sizing: border-box; }
.ib-pearls li b { font-size: .98rem; }
.ib-pearls li span { font-size: .86rem; color: var(--muted); }

.ib-quote { background: var(--ink-deep); color: #fff; padding: clamp(56px, 8vw, 96px) 0; }
.ib-quote blockquote { margin: 0 auto; max-width: 900px; text-align: center; }
.ib-quote blockquote::before { content: "»"; display: block; font-size: 4rem; line-height: .6; color: var(--gold); margin-bottom: 18px; }
.ib-quote p { margin: 0; font-size: clamp(1.35rem, 2.8vw, 2.1rem); line-height: 1.35; font-weight: 600; letter-spacing: -.015em; color: var(--gold); text-wrap: balance; }
.ib-quote-2 { background: var(--gold-soft); color: var(--ink); }
.ib-quote-2 p { color: var(--gold-deep); }

/* Zeittafel */
.ib-tl-head { max-width: 760px; }
.ib-eras { position: sticky; top: calc(var(--header-h) - 10px); z-index: 4; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 28px 0 36px; padding: 8px; border-radius: 18px; background: rgba(247, 246, 242, .92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: 0 0 0 1px var(--line); }
.ib-eras a { display: grid; padding: 10px 14px; border-radius: 12px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: .9rem; line-height: 1.25; transition: background .25s, color .25s; }
.ib-eras small { font-weight: 600; font-size: .72rem; letter-spacing: .06em; color: var(--muted); }
.ib-eras a:hover { background: #fff; }
.ib-eras a.is-on { background: var(--ink); color: #fff; }
.ib-eras a.is-on small { color: var(--gold); }

.ib-era { scroll-margin-top: calc(var(--header-h) + 90px); margin-bottom: 44px; }
.ib-era h3 { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; font-size: clamp(1.25rem, 2vw, 1.6rem); text-transform: uppercase; letter-spacing: -.02em; margin-bottom: 18px; }
.ib-era h3 span { font-size: .8rem; letter-spacing: .14em; color: var(--gold-deep); }
.ib-era ol { list-style: none; margin: 0; padding: 0; position: relative; }
.ib-era ol::before { content: ""; position: absolute; left: 150px; top: 0; bottom: 0; width: 2px; background: linear-gradient(var(--gold), var(--gold-soft)); }
.ib-era li { position: relative; display: grid; grid-template-columns: 150px 1fr; gap: 0 40px; padding: 12px 0; }
.ib-era li::before { content: ""; position: absolute; left: 145px; top: 21px; width: 12px; height: 12px; border-radius: 50%; background: var(--paper); border: 2px solid var(--gold); box-sizing: border-box; }
.ib-era time { display: grid; justify-items: end; padding-right: 22px; line-height: 1.15; }
.ib-era time small { font-size: .78rem; color: var(--muted); font-weight: 600; }
.ib-era time b { font-size: 1.25rem; letter-spacing: -.02em; }
.ib-era li p { margin: 0; padding-top: 4px; max-width: 46em; }
.ib-era li.is-key::before { width: 20px; height: 20px; left: 141px; top: 17px; background: var(--gold); border-color: #fff; box-shadow: 0 0 0 2px var(--gold); }
.ib-era li.is-key p { padding: 14px 20px; margin-top: -8px; border-radius: var(--radius-s); background: #fff; box-shadow: var(--shadow-s); font-weight: 600; }
.ib-era li.is-key time b { color: var(--gold-deep); font-size: 1.5rem; }

/* LAG */
.ib-lag { background: #fff; }
.ib-lag-head { max-width: 900px; }
.ib-nick { font-size: clamp(1.05rem, 1.8vw, 1.3rem); font-style: italic; color: var(--gold-deep); margin: 0 0 28px; }
.ib-lag-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: clamp(28px, 5vw, 64px); align-items: start; }
.ib-big { font-size: 1.15rem; line-height: 1.6; }
.ib-lag-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; border-radius: var(--radius); overflow: hidden; background: var(--line); }
.ib-lag-stats div { display: grid; gap: 4px; padding: 22px 20px; background: var(--paper); }
.ib-lag-stats b { font-size: 2rem; line-height: 1; color: var(--gold-deep); letter-spacing: -.03em; }
.ib-lag-stats span { font-size: .84rem; color: var(--muted); line-height: 1.35; }
.ib-sub { margin: 48px 0 18px; font-size: 1.2rem; }
.ib-lines { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ib-line { padding: 22px 22px 16px; border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--paper); }
.ib-line h4 { display: flex; gap: 10px; align-items: center; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 14px; line-height: 1.3; }
.ib-line h4 span { flex: none; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--ink); color: #fff; font-size: .78rem; letter-spacing: 0; }
.ib-line ul { list-style: none; margin: 0; padding: 0; }
.ib-line li { padding: 7px 0; border-top: 1px solid var(--line); font-size: .9rem; line-height: 1.4; }
.ib-line li:first-child { border-top: 0; }
.ib-line li.is-us { font-weight: 700; color: var(--gold-deep); }
.ib-line li.is-us::after { content: " ★"; color: var(--gold); }

.ib-elek { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(24px, 4vw, 56px); margin-top: 44px; padding: clamp(28px, 4vw, 48px); border-radius: var(--radius); background: var(--ink-deep); color: #fff; }
.ib-elek h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); text-transform: uppercase; }
.ib-elek p { color: rgba(255, 255, 255, .86); margin: 0; }
.ib-elek ul { list-style: none; margin: 0; padding: 0; align-self: center; }
.ib-elek li { position: relative; padding: 9px 0 9px 30px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: .95rem; }
.ib-elek li:first-child { border-top: 0; }
.ib-elek li::before { content: "ϟ"; position: absolute; left: 4px; top: 7px; color: var(--gold); font-weight: 700; }

.ib-end { display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center; margin-top: 28px; padding: 22px 26px; border-left: 4px solid var(--gold); border-radius: 0 var(--radius-s) var(--radius-s) 0; background: var(--paper); }
.ib-end time { font-size: 1.4rem; font-weight: 700; color: var(--gold-deep); }
.ib-end p { margin: 0; }

.ib-cta-grid { display: flex; justify-content: space-between; align-items: center; gap: 28px; flex-wrap: wrap; }
.ib-cta-grid h2 { font-size: clamp(1.4rem, 2.6vw, 2.1rem); }
.ib-cta-grid p { margin: 0; max-width: 40em; }
.ib-cta-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* Sanftes Erscheinen */
.ib-js .ib-rv { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.ib-js .ib-rv.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .ib-js .ib-rv { opacity: 1; transform: none; transition: none; } .ib-tile-img img { transition: none; } }

@media (max-width: 1000px) { .ib-lines { grid-template-columns: 1fr 1fr; } }
@media (max-width: 820px) {
  .ib-intro-grid, .ib-lag-grid, .ib-elek { grid-template-columns: 1fr; }
  .ib-eras { grid-template-columns: repeat(4, minmax(120px, 1fr)); overflow-x: auto; scrollbar-width: none; margin-inline: -8px; }
  .ib-eras::-webkit-scrollbar { display: none; }
  .ib-era ol::before { left: 6px; }
  .ib-era li { grid-template-columns: 1fr; padding: 10px 0 10px 30px; }
  .ib-era li::before { left: 1px; top: 16px; }
  .ib-era li.is-key::before { left: -3px; top: 13px; }
  .ib-era time { justify-items: start; padding: 0; display: flex; gap: 8px; align-items: baseline; }
  .ib-era li.is-key p { margin-top: 6px; }
  .ib-end { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 560px) { .ib-lines { grid-template-columns: 1fr; } .ib-pearls { padding: 24px 20px 18px; } }
@media print { .ib-note, .ib-eras, .ib-toc, .ib-cta-btns { display: none; } .ib-js .ib-rv { opacity: 1; transform: none; } }
.ib-note b, .ib-tile b, .ib-facts b, .ib-pearls b, .ib-era b, .ib-lag-stats b { text-decoration: none; font-weight: 700; }
.ib-tile b { font-weight: 700; }
.ib-era time { align-content: start; }
/* Kacheln: Titel weiß, bei Maus/Antippen Gold; Knopf-Schrift immer weiß; Bilder schwarz-weiß */
a.ib-tile, a.ib-tile:hover, a.ib-tile:focus, a.ib-tile:active { color: #fff; }
a.ib-tile b { color: #fff; transition: color .25s; }
a.ib-tile:hover b, a.ib-tile:focus-visible b, a.ib-tile:active b { color: var(--gold); }
a.ib-tile .ib-tile-go, a.ib-tile:hover .ib-tile-go { color: #fff; }
a.ib-tile .ib-tile-t { color: rgba(255, 255, 255, .86); }
.ib-tile-img img { filter: grayscale(1) contrast(1.05); }