/* ==========================================================================
   YELS – Layout: Header, Menü, Hero, Footer, Scroll-Animationen
   ========================================================================== */

/* --- Header ------------------------------------------------------------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: rgba(255,255,255,0);
  transition: background var(--t-mid) var(--ease), height var(--t-mid) var(--ease),
              box-shadow var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header .wrap { display: flex; align-items: center; gap: var(--gap-m); }

/* gescrollt: kompakter, weiß, mit feiner Linie */
.site-header.is-scrolled {
  height: 64px;
  background: rgba(250,246,239,.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
/* Seiten mit hellem Kopfbereich brauchen von Anfang an weißen Header */
body.header-solid .site-header { background: rgba(250,246,239,.92); backdrop-filter: blur(14px);
                                -webkit-backdrop-filter: blur(14px); border-bottom-color: var(--line); }

.brand {
  font-family: var(--font-display); font-weight: 900;
  font-size: 1.45rem; letter-spacing: -.05em; line-height: 1;
  display: inline-flex; align-items: baseline; gap: .05em;
  transition: opacity var(--t-fast) var(--ease);
}
.brand .dot { color: var(--accent); }
.brand:hover { opacity: .65; }
/* Platzhalter-Hinweis: hier kommt später die Logo-Grafik hin */

.nav { margin-left: auto; display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.2rem); }
.nav a {
  position: relative; font-size: var(--fs-small); font-weight: 600; letter-spacing: .02em;
  padding-block: .35em;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform var(--t-mid) var(--ease-out);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.nav a[aria-current="page"] { font-weight: 800; }

.header-cta { margin-left: clamp(.5rem, 1.5vw, 1.25rem); }

/* Burger */
.burger {
  display: none; margin-left: auto;
  width: 46px; height: 46px; padding: 0;
  background: none; border: 1px solid var(--line-strong); border-radius: var(--radius-pill);
  cursor: pointer; position: relative;
}
.burger i {
  position: absolute; left: 13px; width: 20px; height: 1.5px; background: var(--ink);
  transition: transform var(--t-mid) var(--ease-out), opacity var(--t-fast) var(--ease);
}
.burger i:nth-child(1) { top: 17px; }
.burger i:nth-child(2) { top: 23px; }
.burger i:nth-child(3) { top: 29px; }
.burger[aria-expanded="true"] i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] i:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobiles Menü */
.mobile-nav {
  position: fixed; inset: 0; z-index: 99;
  background: var(--paper);
  padding: calc(var(--header-h) + 2rem) var(--pad-x) 2rem;
  display: flex; flex-direction: column; gap: var(--gap-m);
  transform: translateY(-100%);
  transition: transform var(--t-slow) var(--ease-out);
  overflow-y: auto;
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav a.m-link {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2rem, 9vw, 3rem); letter-spacing: -.04em; line-height: 1.05;
  opacity: 0; transform: translateY(18px);
  transition: opacity .5s var(--ease-out), transform .5s var(--ease-out);
}
.mobile-nav.is-open a.m-link { opacity: 1; transform: none; }
.mobile-nav.is-open a.m-link:nth-child(1) { transition-delay: .08s; }
.mobile-nav.is-open a.m-link:nth-child(2) { transition-delay: .13s; }
.mobile-nav.is-open a.m-link:nth-child(3) { transition-delay: .18s; }
.mobile-nav.is-open a.m-link:nth-child(4) { transition-delay: .23s; }
.mobile-nav.is-open a.m-link:nth-child(5) { transition-delay: .28s; }
.mobile-nav .m-foot { margin-top: auto; display: grid; gap: var(--gap-s); }
body.nav-open { overflow: hidden; }

@media (max-width: 940px) {
  .nav, .header-cta { display: none; }
  .burger { display: block; }
}

/* --- Hero --------------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(2rem, 6vw, 5rem));
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
  overflow: hidden;
}
.hero-grid {
  position: relative; z-index: 1;
  display: grid; gap: clamp(2rem, 4vw, 3.5rem);
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  align-items: center;
}
.hero-title .ln { display: block; overflow: hidden; }
.hero-title .ln > span { display: block; }
.hero-figure {
  position: relative; border-radius: var(--radius-l); overflow: hidden;
  aspect-ratio: 4 / 5; background: var(--paper-warm);
}
.hero-figure img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; }
.hero-name {
  position: absolute; right: 0; top: 0; z-index: 2;
  background: var(--paper);
  border-radius: 0 0 0 var(--radius-l);
  padding: .8rem 1.1rem; text-align: right;
}
.hero-name .nm { display: block; font-family: var(--font-display); font-weight: 800;
                 font-size: 1.05rem; letter-spacing: -.02em; }
.hero-name .rl { display: block; font-size: var(--fs-micro); letter-spacing: .12em;
                 text-transform: uppercase; color: var(--ink-muted); margin-top: .25em; }
.hero-badge {
  position: absolute; left: 0; bottom: 0; z-index: 2;
  background: var(--paper); border-radius: 0 var(--radius-l) 0 var(--radius-l);
  padding: 1.1rem 1.4rem; max-width: 15rem;
}
.hero-badge .num { font-family: var(--font-display); font-weight: 900; font-size: 1.9rem;
                   letter-spacing: -.04em; line-height: 1; }
.hero-stats { display: grid; grid-template-columns: repeat(2, max-content);
              gap: clamp(1.2rem, 2.5vw, 2rem) clamp(2rem, 5vw, 4rem); }
.hero-stats .num { font-family: var(--font-display); font-weight: 900; font-size: 2rem;
                   letter-spacing: -.04em; line-height: 1; }
.hero-stats .lbl { font-size: var(--fs-micro); letter-spacing: .12em;
                   text-transform: uppercase; color: var(--ink-muted); margin-top: .35em; }

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure { aspect-ratio: 4 / 3.4; order: -1; }
}

/* --- Seitenkopf für Unterseiten ----------------------------------------- */
.page-head {
  position: relative; overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(2.5rem, 5vw, 4.5rem));
  padding-bottom: clamp(2rem, 4vw, 3.5rem);
  background:
    radial-gradient(60% 140% at 85% 0%, var(--glow-b), transparent 65%),
    var(--paper-soft);
}
.page-head .wrap { position: relative; z-index: 1; }
.page-head .lead { max-width: 52ch; }

/* --- Footer ------------------------------------------------------------- */
.site-footer {
  position: relative; overflow: hidden;
  color: var(--paper); padding-block: clamp(3.5rem, 7vw, 6rem) 2rem;
  background:
    radial-gradient(70% 120% at 0% 0%, rgba(138,96,118,.45), transparent 62%),
    var(--deep);
}
.site-footer .wrap { position: relative; z-index: 1; }
.footer-grid {
  display: grid; gap: var(--gap-l);
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
}
.site-footer .brand { font-size: 2.2rem; color: var(--paper); }
.site-footer h4 { font-size: var(--fs-micro); letter-spacing: .16em; text-transform: uppercase;
                  font-family: var(--font-body); font-weight: 700; color: rgba(255,255,255,.5);
                  margin-bottom: 1em; }
.site-footer a { color: rgba(255,255,255,.8); font-size: var(--fs-small); }
.site-footer a:hover { color: var(--paper); }
.footer-links { display: grid; gap: .6em; }
.footer-bottom {
  margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; gap: var(--gap-s) var(--gap-m);
  justify-content: space-between; align-items: center;
  font-size: var(--fs-small); color: rgba(255,255,255,.5);
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

/* --- Abschluss-Banner --------------------------------------------------- */
.cta-band { position: relative; overflow: hidden; }
.cta-band .inner {
  display: grid; gap: var(--gap-l); align-items: center;
  grid-template-columns: 1.2fr .8fr;
}
@media (max-width: 820px) { .cta-band .inner { grid-template-columns: 1fr; } }

/* --- Mobile Aktionsleiste (immer sichtbar auf dem Handy) ---------------- */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  display: none; gap: .6rem; padding: .7rem var(--pad-x) calc(.7rem + env(safe-area-inset-bottom));
  background: rgba(250,246,239,.94); backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
}
.mobile-bar .btn { flex: 1; padding-inline: .6em; }
@media (max-width: 700px) {
  .mobile-bar { display: flex; }
  body:has(.mobile-bar) { padding-bottom: 76px; }
}

/* ==========================================================================
   Scroll-Animationen  (JS setzt .is-in, sobald das Element sichtbar wird)
   ========================================================================== */
[data-reveal] { opacity: 0; transition: opacity .8s var(--ease-out), transform .8s var(--ease-spring); }
[data-reveal="up"]    { transform: translateY(34px); }
[data-reveal="fade"]  { transform: none; }
[data-reveal="left"]  { transform: translateX(-34px); }
[data-reveal="right"] { transform: translateX(34px); }
[data-reveal="zoom"]  { transform: scale(.94); }
[data-reveal].is-in   { opacity: 1; transform: none; }

/* gestaffelte Kinder */
[data-stagger] > * { opacity: 0; transform: translateY(26px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
[data-stagger].is-in > * { opacity: 1; transform: none; }
[data-stagger].is-in > *:nth-child(1) { transition-delay: .00s; }
[data-stagger].is-in > *:nth-child(2) { transition-delay: .07s; }
[data-stagger].is-in > *:nth-child(3) { transition-delay: .14s; }
[data-stagger].is-in > *:nth-child(4) { transition-delay: .21s; }
[data-stagger].is-in > *:nth-child(5) { transition-delay: .28s; }
[data-stagger].is-in > *:nth-child(6) { transition-delay: .35s; }
[data-stagger].is-in > *:nth-child(7) { transition-delay: .42s; }
[data-stagger].is-in > *:nth-child(8) { transition-delay: .49s; }

/* Überschrift baut sich zeilenweise auf (JS zerlegt den Text in .ln > span)
   padding/margin gleichen aus, dass overflow:hidden sonst Unterlängen
   wie bei "g" oder "ß" abschneidet */
.split-lines .ln { display: block; overflow: hidden;
                   padding: .16em 0 .20em; margin: -.16em 0 -.20em; }
.split-lines .ln > span {
  display: block; transform: translateY(105%);
  transition: transform .9s var(--ease-out);
}
.split-lines.is-in .ln > span { transform: none; }
.split-lines.is-in .ln:nth-child(2) > span { transition-delay: .09s; }
.split-lines.is-in .ln:nth-child(3) > span { transition-delay: .18s; }
.split-lines.is-in .ln:nth-child(4) > span { transition-delay: .27s; }

/* Bild fährt beim Einscrollen leicht heran */
.zoom-in img { transform: scale(1.12); transition: transform 1.4s var(--ease-out); }
.zoom-in.is-in img { transform: scale(1); }

/* sanfter Parallax – JS setzt --py */
[data-parallax] { will-change: transform; }
[data-parallax] img { transform: translate3d(0, var(--py, 0px), 0) scale(1.14); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-stagger] > * { opacity: 1 !important; transform: none !important; }
  .split-lines .ln > span { transform: none !important; }
  .zoom-in img, [data-parallax] img { transform: none !important; }
}

/* ==========================================================================
   Zusätzliche Bewegung (Stufe „deutlich mehr Schauwert")
   Alles läuft über transform/opacity/clip-path – das übernimmt die Grafik-
   karte. Breiten oder Positionen zu animieren würde ruckeln.
   ========================================================================== */

/* --- Fortschrittsbalken im Header --------------------------------------- */
.scroll-fortschritt {
  position: fixed; left: 0; top: 0; height: 2px; z-index: 130;
  width: 100%; transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--accent-mid), var(--accent), var(--accent-deep));
  pointer-events: none;
}
body.has-demo-bar .scroll-fortschritt { top: 34px; }

/* --- Bild wächst beim Einscrollen aus einer Maske ------------------------
   Bewusst NUR der Beschnitt. Das Bild darin zusätzlich zu skalieren wäre
   schöner, würde aber den Parallax und die Hover-Zooms überschreiben – die
   fassen dieselbe Eigenschaft an (transform).
------------------------------------------------------------------------ */
.mask-reveal {
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1.1s var(--ease-out);
}
.mask-reveal.is-in { clip-path: inset(0 0 0 0); }

/* --- Karten heben sich unter dem Zeiger ---------------------------------- */
[data-spotlight] {
  position: relative;
  transition: transform var(--t-mid) var(--ease-spring),
              box-shadow var(--t-mid) var(--ease);
}
[data-spotlight]::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  border-radius: inherit; opacity: 0;
  transition: opacity var(--t-mid) var(--ease);
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%),
                              var(--glow-a), transparent 65%);
}
[data-spotlight]:hover::before { opacity: 1; }
[data-spotlight]:hover { transform: translateY(-5px); box-shadow: var(--shadow-lift); }
[data-spotlight] > * { position: relative; z-index: 1; }

/* --- Abschnitte, die sich beim Scrollen übereinanderschieben ------------- */
.stapel { position: relative; }
.stapel > .stapel-teil {
  position: sticky; top: calc(var(--header-h) + 1.5rem);
}

/* --- Weiche Farbwolke, die langsam wandert ------------------------------- */
.wolke {
  position: absolute; z-index: 0; pointer-events: none;
  width: 46vw; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, var(--glow-a), transparent 68%);
  filter: blur(18px);
  animation: wolke-treiben 26s ease-in-out infinite alternate;
}
.wolke.zwei { background: radial-gradient(circle, var(--glow-b), transparent 70%);
              animation-duration: 34s; animation-direction: alternate-reverse; }
@keyframes wolke-treiben {
  from { transform: translate3d(-6%, -4%, 0) scale(1); }
  to   { transform: translate3d(8%, 6%, 0) scale(1.15); }
}

/* --- Zeilen einer Überschrift kommen gestaffelt (Verstärkung) ------------ */
.split-lines.is-in .ln:nth-child(5) > span { transition-delay: .36s; }
.split-lines.is-in .ln:nth-child(6) > span { transition-delay: .45s; }

@media (prefers-reduced-motion: reduce) {
  .scroll-fortschritt { display: none; }
  .mask-reveal { clip-path: none !important; }
  .wolke { animation: none; }
  [data-spotlight]:hover { transform: none; }
}