/* ==========================================================================
   Entwurf 8 - Seitwaerts. Der Kurskatalog laeuft quer, gefuehrt durch
   Scroll-Snap, Pfeiltasten und zwei Knoepfe. Kein Scroll-Hijacking:
   die Seite scrollt normal weiter, nur der Streifen faehrt zur Seite.
   Layout unabhaengig vom Brandkit.
   ========================================================================== */
:root { --maxw: 1280px; --takt: clamp(4rem, 7vw, 6rem); }

.js-scroll [data-auftritt] { opacity: 0; transform: translateY(20px); }
.js-scroll [data-auftritt].ist-da {
  opacity: 1; transform: none;
  transition: opacity .6s cubic-bezier(.16,1,.3,1) var(--verzug, 0ms),
              transform .6s cubic-bezier(.16,1,.3,1) var(--verzug, 0ms);
}

/* --- Kopf ---------------------------------------------------------------- */
.kopf { position: sticky; top: 0; z-index: 60; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(14px); }
.kopf__reihe { display: flex; align-items: center; gap: 2rem; height: 72px; }
.hauptnav { margin-inline-start: auto; }
.hauptnav ul { display: flex; gap: 1.6rem; }
.hauptnav a { text-decoration: none; font-size: .9375rem; color: var(--text-muted); white-space: nowrap; }
.hauptnav a:hover, .hauptnav a.ist-aktiv { color: var(--accent-text); }
@media (max-width: 860px) { .hauptnav { display: none; } }

.knopf {
  display: inline-flex; align-items: center; gap: .5rem; justify-content: center;
  padding: .8rem 1.4rem; border-radius: var(--r-pill); border: 1px solid transparent;
  font-weight: 650; font-size: .9375rem; text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background-color .16s ease, transform .12s ease, border-color .16s ease;
}
.knopf--voll { background: var(--accent); color: var(--on-accent); }
.knopf--voll:hover { background: var(--accent-hover); }
.knopf--linie { background: transparent; color: var(--text); border-color: var(--border); }
.knopf--linie:hover { border-color: var(--accent); color: var(--accent-text); }
.knopf--hell { background: var(--on-inverse); color: var(--inverse); }
.knopf--hell:hover { background: var(--accent); color: var(--on-accent); }
.knopf:active { transform: translateY(1px); }
.knopf--klein { padding: .55rem 1rem; font-size: .875rem; }

/* --- Auftakt, zweispaltig mit Bild ---------------------------------------- */
.auftakt { padding-block: clamp(2.5rem, 5vw, 4rem) clamp(2.5rem, 5vw, 4rem); }
.auftakt__raster { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.auftakt__marke { display: inline-block; font-family: var(--font-mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .14em; color: var(--accent-text); margin-bottom: 1.1rem; }
.auftakt h1 { font-size: clamp(2.1rem, 4.4vw, 3.5rem); font-weight: var(--display-weight); line-height: 1.08; max-width: 18ch; margin-bottom: 1.3rem; text-transform: var(--display-transform); }
.auftakt p { font-size: clamp(1.0625rem, 1.4vw, 1.1875rem); color: var(--text-muted); max-width: 46ch; margin-bottom: 1.9rem; }
.auftakt__aktionen { display: flex; flex-wrap: wrap; gap: .8rem; }
.auftakt__bild img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; border-radius: calc(var(--r) + 4px); }
@media (max-width: 900px) { .auftakt__raster { grid-template-columns: 1fr; } }

/* --- Querstreifen --------------------------------------------------------- */
.querbereich { padding-block: var(--takt); background: var(--bg-alt); overflow: hidden; }
.querkopf { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
.querkopf h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); font-weight: var(--display-weight); max-width: 20ch; text-transform: var(--display-transform); }
.steuerung { display: flex; gap: .6rem; flex: none; }
.steuerung button {
  width: 44px; height: 44px; border-radius: var(--r-pill); cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  display: grid; place-items: center;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}
.steuerung button:hover { border-color: var(--accent); background: var(--accent); color: var(--on-accent); }
.steuerung svg { width: 20px; height: 20px; fill: currentColor; }
.steuerung button:first-child svg { transform: rotate(180deg); }
@media (max-width: 700px) { .querkopf { flex-direction: column; align-items: flex-start; } }

.streifen {
  display: grid; grid-auto-flow: column; grid-auto-columns: min(340px, 78vw);
  gap: 1.25rem; overflow-x: auto; scroll-snap-type: x mandatory;
  padding-bottom: 1.25rem; scrollbar-width: thin;
  /* der Streifen darf ueber den Rand hinauslaufen, das zeigt, dass es weitergeht */
  margin-inline: calc((100vw - min(100% , var(--maxw))) / -2);
  padding-inline: max(1.25rem, calc((100vw - min(100%, var(--maxw))) / 2));
}
.streifen:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.querkarte {
  scroll-snap-align: start;
  display: flex; flex-direction: column;
  border: 1px solid var(--border); border-radius: calc(var(--r) + 4px);
  background: var(--surface); padding: 1.6rem; text-decoration: none;
  transition: border-color .18s ease, transform .18s ease;
}
.querkarte:hover { border-color: var(--accent); transform: translateY(-3px); }
.querkarte__bild { margin: -1.6rem -1.6rem 1.3rem; }
.querkarte__bild img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: calc(var(--r) + 4px) calc(var(--r) + 4px) 0 0; }
.querkarte__feld { font-family: var(--font-mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent-text); margin-bottom: .6rem; }
.querkarte h3 { font-size: 1.1875rem; font-weight: 650; line-height: 1.25; margin-bottom: .6rem; }
.querkarte p { font-size: .9375rem; color: var(--text-muted); margin-bottom: 1.4rem; }
.querkarte__fuss { margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--border); font-family: var(--font-mono); font-size: .8125rem; color: var(--text-muted); display: flex; gap: 1rem; font-variant-numeric: tabular-nums; }
.querhinweis { margin-top: 1rem; font-size: .875rem; color: var(--text-muted); }

/* --- Abschnitte ---------------------------------------------------------- */
.abschnitt { padding-block: var(--takt); }
.abschnitt__kopf { max-width: 50ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.abschnitt__kopf h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); font-weight: var(--display-weight); margin-bottom: .9rem; text-transform: var(--display-transform); }
.abschnitt__kopf p { color: var(--text-muted); font-size: 1.0625rem; }

/* --- Drei Wege ------------------------------------------------------------ */
.wege { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.weg { border: 1px solid var(--border); border-radius: calc(var(--r) + 4px); padding: 1.7rem; background: var(--surface); }
.weg--betont { background: var(--inverse); color: var(--on-inverse); border-color: var(--inverse); }
.weg b { display: block; font-family: var(--font-mono); font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 400; letter-spacing: -0.04em; margin-bottom: .6rem; font-variant-numeric: tabular-nums; }
.weg h3 { font-size: 1.0625rem; font-weight: 700; margin-bottom: .5rem; }
.weg p { font-size: .9375rem; color: var(--text-muted); }
.weg.weg--betont p { color: var(--on-inverse-muted); }
.weg.weg--betont h3, .weg.weg--betont b { color: var(--on-inverse); }
@media (max-width: 860px) { .wege { grid-template-columns: 1fr; } }

/* --- Abschluss ----------------------------------------------------------- */
.abschluss { display: grid; grid-template-columns: 1fr auto; gap: 2.5rem; align-items: center; padding-block: clamp(2.5rem, 5vw, 4rem); border-top: 1px solid var(--border); }
.abschluss h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: var(--display-weight); margin-bottom: .7rem; text-transform: var(--display-transform); }
.abschluss p { color: var(--text-muted); max-width: 48ch; }
@media (max-width: 800px) { .abschluss { grid-template-columns: 1fr; } }

/* --- Fuss ---------------------------------------------------------------- */
.fuss { border-top: 1px solid var(--border); padding-block: 3rem 2.25rem; font-size: .9375rem; }
.fuss__raster { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2.5rem; }
.fuss h3 { font-size: .8125rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 1rem; font-weight: 650; }
.fuss li { margin-bottom: .5rem; }
.fuss a { text-decoration: none; color: var(--text-muted); }
.fuss a:hover { color: var(--accent-text); }
.fuss__zertifikat { font-size: .8125rem; color: var(--text-muted); line-height: 1.6; max-width: 44ch; margin-top: 1rem; }
.fuss__unten { margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; font-size: .8125rem; color: var(--text-muted); }
@media (max-width: 720px) { .fuss__raster { grid-template-columns: 1fr; } }