/* =====================================================================
   Reha Riethof — Stylesheet
   Ästhetik: ruhig, natürlich, hochwertig. Viel Weissraum, grosse Bilder,
   Serifen-Überschriften, gedeckte Erd-/Lodentöne.
   ===================================================================== */

:root{
  --paper:      #F7F4EF;   /* warmes Off-White */
  --paper-2:    #EFEAE1;   /* leicht dunkler, für alternierende Sektionen */
  --paper-3:    #E7E0D4;   /* Karten/Linien */
  --ink:        #23201B;   /* warmes Fast-Schwarz */
  --ink-soft:   #57514644; /* transparent, für Linien */
  --text:       #40392F;   /* Fliesstext */
  --muted:      #857C6D;   /* gedämpfter Text / Labels */
  --accent:     #5E6B54;   /* Loden/Olive */
  --accent-dk:  #46503D;   /* dunkleres Loden (Footer) */
  --line:       #DAD2C4;   /* Trennlinien */

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 1180px;
  --gap: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(4.5rem, 10vw, 9rem);
  --radius: 3px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

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

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  font-family:var(--sans);
  font-size:clamp(1rem, 0.55vw + 0.9rem, 1.09rem);
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }

h1,h2,h3{
  font-family:var(--serif);
  font-weight:400;
  color:var(--ink);
  line-height:1.1;
  letter-spacing:-0.01em;
  margin:0;
}
h2{ font-size:clamp(1.9rem, 3.6vw, 3rem); }
h3{ font-size:1.22rem; letter-spacing:0; line-height:1.25; }

p{ margin:0 0 1.15em; }
p:last-child{ margin-bottom:0; }
em{ font-style:italic; }

.container{ width:100%; max-width:var(--container); margin-inline:auto; padding-inline:var(--gap); }

.eyebrow{
  font-family:var(--sans);
  font-size:.74rem;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 1.1rem;
}
.eyebrow-light{ color:#D8CBB0; }

.section{ padding-block:var(--section-y); }

/* Anker-Offset wegen fixem Header */
.split[id], .section[id], .quote-band[id]{ scroll-margin-top:76px; }

/* ---------------------------------------------------------------- header */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:50;
  transition:background .45s var(--ease), box-shadow .45s var(--ease), padding .45s var(--ease);
  padding:.35rem 0;
}
.header-inner{
  max-width:var(--container); margin-inline:auto;
  padding:.75rem var(--gap);
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
}
.brand{ display:inline-flex; align-items:center; line-height:0; color:#F4EFE6; transition:color .45s var(--ease); }
.logo-svg{ width:auto; display:block; overflow:visible; }
.logo-svg text{ fill:currentColor; font-family:var(--serif); }
.logo-svg .lg-eyebrow{ font-weight:500; opacity:.72; }
.logo-svg .lg-word{ font-weight:400; }
.logo-svg .lg-dot{ fill:currentColor; opacity:.5; }
.brand-logo{ height:30px; transition:height .45s var(--ease); }
.nav{ display:flex; align-items:center; gap:clamp(1rem,2.4vw,2.1rem); }
.nav a{
  text-decoration:none;
  font-size:.86rem;
  letter-spacing:.05em;
  color:#F4EFE6;
  opacity:.9;
  transition:opacity .3s, color .3s;
  position:relative;
}
.nav a:not(.nav-cta)::after{
  content:""; position:absolute; left:0; bottom:-5px; height:1px; width:0;
  background:currentColor; transition:width .35s var(--ease);
}
.nav a:hover{ opacity:1; }
.nav a:not(.nav-cta):hover::after{ width:100%; }
.nav-cta{
  border:1px solid rgba(244,239,230,.55);
  padding:.5rem 1.1rem; border-radius:var(--radius);
  transition:background .3s, color .3s, border-color .3s;
}
.nav-cta:hover{ background:#F4EFE6; color:var(--ink); border-color:#F4EFE6; }

/* header nach dem Scrollen: heller Grund */
.site-header.scrolled{
  background:rgba(247,244,239,.94);
  backdrop-filter:saturate(140%) blur(8px);
  box-shadow:0 1px 0 rgba(35,32,27,.08);
}
.site-header.scrolled .brand{ color:var(--ink); }
.site-header.scrolled .brand-logo{ height:26px; }
.site-header.scrolled .nav a{ color:var(--ink); opacity:.78; }
.site-header.scrolled .nav a:hover{ opacity:1; color:var(--accent); }
.site-header.scrolled .nav-cta{ border-color:var(--line); }
.site-header.scrolled .nav-cta:hover{ background:var(--ink); color:var(--paper); border-color:var(--ink); }
.site-header.scrolled .nav-toggle span{ background:var(--ink); }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; width:34px; height:34px;
  background:none; border:0; cursor:pointer; padding:6px 4px; z-index:60;
}
.nav-toggle span{ height:2px; width:100%; background:#F4EFE6; border-radius:2px; transition:transform .35s var(--ease), opacity .3s; }

/* ---------------------------------------------------------------- hero */
.hero{
  position:relative; min-height:100vh; min-height:100svh;
  display:flex; align-items:center; justify-content:center;
  text-align:center; color:#fff; overflow:hidden;
}
.hero-media{ position:absolute; inset:0; z-index:0; }
.hero-img{
  width:100%; height:100%; object-fit:cover;
  animation:kenburns 26s ease-out both;
  transform-origin:60% 40%;
}
@keyframes kenburns{
  from{ transform:scale(1.08); }
  to{ transform:scale(1); }
}
.hero-scrim{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(20,18,14,.42) 0%, rgba(20,18,14,.12) 30%, rgba(20,18,14,.28) 65%, rgba(20,18,14,.62) 100%);
}
.hero-content{
  position:relative; z-index:2; padding:6rem 1.5rem 4rem;
  max-width:820px;
}
.hero-title{
  font-size:clamp(3.2rem, 11vw, 8rem);
  line-height:.98; letter-spacing:-.02em; color:#fff;
  text-shadow:0 2px 40px rgba(0,0,0,.28);
}
.hero-tagline{
  font-family:var(--serif); font-style:italic;
  font-size:clamp(1.25rem, 3vw, 1.9rem);
  margin:1.4rem 0 0; color:#F3EEE4;
  text-shadow:0 1px 20px rgba(0,0,0,.35);
}
.hero-sub{
  max-width:34ch; margin:1.6rem auto 2.4rem;
  font-size:1.02rem; color:#EDE6D9; opacity:.92;
}
.hero .eyebrow{ margin-bottom:1.4rem; }

.hero-scroll{
  position:absolute; left:50%; bottom:2rem; transform:translateX(-50%);
  width:26px; height:42px; border:1.5px solid rgba(255,255,255,.6); border-radius:14px; z-index:2;
}
.hero-scroll span{
  position:absolute; left:50%; top:8px; width:3px; height:8px; margin-left:-1.5px;
  background:rgba(255,255,255,.85); border-radius:2px; animation:scrolldot 1.8s var(--ease) infinite;
}
@keyframes scrolldot{ 0%{opacity:0; transform:translateY(0);} 40%{opacity:1;} 80%{opacity:0; transform:translateY(12px);} 100%{opacity:0;} }

/* ---------------------------------------------------------------- buttons */
.btn{
  display:inline-block; text-decoration:none; cursor:pointer;
  font-size:.82rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  padding:.95rem 2rem; border-radius:var(--radius);
  transition:background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
  border:1px solid transparent;
}
.btn:hover{ transform:translateY(-2px); }
.btn-ghost-light{ border-color:rgba(255,255,255,.6); color:#fff; }
.btn-ghost-light:hover{ background:#fff; color:var(--ink); }
.btn-solid{ background:var(--ink); color:var(--paper); }
.btn-solid:hover{ background:var(--accent); }
.btn-outline{ border-color:var(--line); color:var(--ink); }
.btn-outline:hover{ background:var(--ink); color:var(--paper); border-color:var(--ink); }

/* ---------------------------------------------------------------- intro / pillars */
.intro{ text-align:center; }
.lead{
  font-family:var(--serif);
  font-size:clamp(1.35rem, 2.6vw, 2rem);
  line-height:1.45; color:var(--ink);
  max-width:24ch; margin:0 auto;
  max-width:min(760px, 90%);
}
.lead em{ color:var(--accent); font-style:italic; }
.pillars{
  margin-top:clamp(3rem,6vw,5rem);
  display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; text-align:left;
}
.pillar{
  display:block; text-decoration:none; color:inherit;
  padding:2.2rem 2rem 2rem; background:var(--paper-2);
  border:1px solid var(--line); border-radius:var(--radius);
  transition:transform .4s var(--ease), box-shadow .4s var(--ease), background .4s var(--ease);
}
.pillar:hover{ transform:translateY(-5px); box-shadow:0 22px 45px -28px rgba(35,32,27,.4); background:#fff; }
.pillar-num{ font-family:var(--serif); font-size:1rem; color:var(--accent); letter-spacing:.1em; }
.pillar h3{ margin:.7rem 0 .6rem; font-size:1.4rem; }
.pillar p{ color:var(--text); font-size:.98rem; margin-bottom:1.2rem; }
.pillar-link{ font-size:.8rem; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color:var(--accent); }

/* ---------------------------------------------------------------- split sections */
.split{
  display:grid; grid-template-columns:1fr 1fr; align-items:center;
  gap:clamp(2rem,6vw,5.5rem);
  max-width:1320px; margin-inline:auto; padding-inline:var(--gap);
}
.split-alt .split-media{ order:2; }   /* Bild nach rechts, Text links */
.split-text{ max-width:34rem; }
.split-text .eyebrow{ margin-top:0; }
.split-media img{
  width:100%; height:100%; object-fit:cover; border-radius:var(--radius);
  aspect-ratio:4/3; box-shadow:0 30px 60px -40px rgba(35,32,27,.55);
}
.team .split-media img{ aspect-ratio:5/4; }

/* ---------------------------------------------------------------- quote band */
.quote-band{
  background:var(--accent-dk); color:#F3EEE4;
  padding-block:clamp(3.5rem,8vw,6.5rem); text-align:center;
}
.quote-band blockquote{ margin:0; max-width:760px; margin-inline:auto; }
.quote-band p{
  font-family:var(--serif); font-size:clamp(1.3rem,2.8vw,2.05rem);
  line-height:1.4; color:#E9E2D2;
}
.quote-band .quote-accent{ font-style:italic; color:#fff; margin-top:.6rem; margin-bottom:0; }

/* ---------------------------------------------------------------- anlage */
.anlage{ background:var(--paper-2); }
.section-head{ max-width:640px; margin-bottom:clamp(2.5rem,5vw,4rem); }
.section-intro{ color:var(--text); font-size:1.05rem; margin-top:1.2rem; }

.anlage-gallery{
  display:grid; grid-template-columns:repeat(2,1fr); gap:1.1rem; margin-bottom:clamp(2.5rem,5vw,4rem);
}
.anlage-gallery figure{ margin:0; overflow:hidden; border-radius:var(--radius); }
.anlage-gallery img{ width:100%; height:100%; object-fit:cover; aspect-ratio:3/2; transition:transform 1.1s var(--ease); }
.anlage-gallery figure:hover img{ transform:scale(1.05); }
.ag-large{ grid-row:span 2; }
.ag-large img{ aspect-ratio:3/4.1; }

.features{
  list-style:none; margin:0; padding:0;
  display:grid; grid-template-columns:repeat(3,1fr); gap:2rem 2.5rem;
}
.features li{ border-top:1px solid var(--line); padding-top:1.3rem; }
.features h3{ margin-bottom:.5rem; }
.features p{ color:var(--muted); font-size:.96rem; }

/* ---------------------------------------------------------------- rehab steps */
.steps{ list-style:none; margin:2rem 0 0; padding:0; }
.steps li{ display:flex; gap:1.3rem; padding:1.4rem 0; border-top:1px solid var(--line); }
.steps li:first-child{ border-top:0; padding-top:0; }
.step-num{ font-family:var(--serif); font-size:1.5rem; color:var(--accent); line-height:1; min-width:2.2rem; }
.steps h3{ margin-bottom:.35rem; }
.steps p{ color:var(--muted); font-size:.98rem; }

/* ---------------------------------------------------------------- umgebung gallery */
.umgebung{ text-align:left; }
.gallery{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.1rem; }
.gallery figure{ margin:0; overflow:hidden; border-radius:var(--radius); cursor:pointer; position:relative; }
.gallery img{ width:100%; height:100%; object-fit:cover; aspect-ratio:3/2; transition:transform 1.1s var(--ease); }
.gallery figure:hover img{ transform:scale(1.06); }
.gallery figure::after{
  content:""; position:absolute; inset:0; background:rgba(35,32,27,0);
  transition:background .4s; pointer-events:none;
}
.gallery figure:hover::after{ background:rgba(35,32,27,.12); }

/* ---------------------------------------------------------------- kontakt */
.kontakt{ background:var(--ink); color:#EDE6D9; }
.kontakt-inner{ display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(2.5rem,6vw,5rem); align-items:center; }
.kontakt h2{ color:#fff; }
.kontakt .section-intro{ color:#C9C0B0; }
.kontakt-card{
  background:rgba(255,255,255,.04); border:1px solid rgba(247,244,239,.14);
  border-radius:var(--radius); padding:clamp(1.8rem,4vw,2.8rem);
}
.kc-row{ display:flex; gap:1.5rem; padding:1.05rem 0; border-bottom:1px solid rgba(247,244,239,.12); }
.kc-row:first-child{ padding-top:0; }
.kc-label{ flex:0 0 40%; font-size:.74rem; letter-spacing:.18em; text-transform:uppercase; color:#9A9182; padding-top:.2rem; }
.kc-value{ font-size:1.08rem; color:#F3EEE4; }
.kc-value a{ text-decoration:none; border-bottom:1px solid rgba(243,238,228,.4); transition:border-color .3s, color .3s; }
.kc-value a:hover{ color:#fff; border-color:#fff; }
.kc-actions{ display:flex; gap:.9rem; flex-wrap:wrap; margin-top:1.8rem; }
.kontakt .btn-solid{ background:var(--paper); color:var(--ink); }
.kontakt .btn-solid:hover{ background:var(--accent); color:#fff; }
.kontakt .btn-outline{ border-color:rgba(247,244,239,.4); color:#F3EEE4; }
.kontakt .btn-outline:hover{ background:#F3EEE4; color:var(--ink); border-color:#F3EEE4; }

/* ---------------------------------------------------------------- footer */
.site-footer{ background:var(--accent-dk); color:#D9D2C4; padding-block:clamp(3rem,6vw,4.5rem); font-size:.92rem; }
.footer-inner{ display:grid; grid-template-columns:1.3fr 1fr 1.6fr; gap:2.5rem; align-items:start; }
.footer-logo{ height:30px; color:#EDE6D9; opacity:.95; margin-bottom:1rem; }
.footer-brand p{ color:#B9B1A2; line-height:1.6; }
.footer-nav{ display:flex; flex-direction:column; gap:.7rem; }
.footer-nav a{ text-decoration:none; color:#D9D2C4; transition:color .3s; width:fit-content; }
.footer-nav a:hover{ color:#fff; }
.footer-legal p{ margin:0 0 .4rem; color:#B9B1A2; line-height:1.55; }
.footer-legal strong{ color:#EDE6D9; font-weight:600; letter-spacing:.02em; }
.footer-legal a{ color:inherit; }
.footer-copy{ margin-top:1rem !important; font-size:.82rem; color:#8F887A !important; }

/* ---------------------------------------------------------------- lightbox */
.lightbox{
  position:fixed; inset:0; z-index:100; display:none;
  align-items:center; justify-content:center;
  background:rgba(20,18,14,.94); padding:4vw;
}
.lightbox.open{ display:flex; }
.lb-img{ max-width:92vw; max-height:88vh; object-fit:contain; border-radius:2px; box-shadow:0 20px 60px rgba(0,0,0,.5); }
.lb-close,.lb-prev,.lb-next{
  position:absolute; background:none; border:0; color:#F3EEE4; cursor:pointer;
  font-size:2.4rem; line-height:1; padding:.4rem .9rem; opacity:.8; transition:opacity .3s, transform .3s;
}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{ opacity:1; }
.lb-close{ top:1.2rem; right:1.4rem; font-size:2.8rem; }
.lb-prev{ left:1rem; top:50%; transform:translateY(-50%); font-size:3.4rem; }
.lb-next{ right:1rem; top:50%; transform:translateY(-50%); font-size:3.4rem; }
.lb-prev:hover{ transform:translateY(-50%) translateX(-3px); }
.lb-next:hover{ transform:translateY(-50%) translateX(3px); }

/* ---------------------------------------------------------------- scroll reveal */
/* nur wenn JS aktiv ist, wird Inhalt zunächst versteckt (Progressive Enhancement) */
.js .reveal{ opacity:0; transform:translateY(26px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.js .reveal.in{ opacity:1; transform:none; }

/* ---------------------------------------------------------------- responsive */
@media (max-width:900px){
  .split{ grid-template-columns:1fr; gap:2rem; }
  .split-alt .split-media{ order:0; }
  .split-media img{ aspect-ratio:16/10; }
  .kontakt-inner{ grid-template-columns:1fr; }
  .features{ grid-template-columns:repeat(2,1fr); gap:1.6rem 2rem; }
  .footer-inner{ grid-template-columns:1fr 1fr; }
  .footer-legal{ grid-column:1 / -1; }
}

@media (max-width:720px){
  .nav{
    position:fixed; inset:0 0 0 auto; width:min(78vw,320px);
    flex-direction:column; align-items:flex-start; justify-content:center; gap:1.5rem;
    background:var(--ink); padding:2rem 2.2rem;
    transform:translateX(100%); transition:transform .45s var(--ease);
    box-shadow:-20px 0 60px rgba(0,0,0,.3);
  }
  .nav.open{ transform:none; }
  /* WICHTIG: backdrop-filter macht den Header zum Containing-Block fuer
     position:fixed – das Menue-Panel wuerde sonst auf Header-Hoehe schrumpfen.
     Auf Mobile daher ohne Blur (der semi-transparente Hintergrund bleibt). */
  .site-header.scrolled{ backdrop-filter:none; -webkit-backdrop-filter:none; }
  .nav a{ color:#F3EEE4 !important; opacity:.9; font-size:1.15rem; }
  .nav-cta{ border-color:rgba(244,239,230,.5); }
  .nav-toggle{ display:flex; }
  .nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); background:#F3EEE4; }
  .nav-toggle.open span:nth-child(2){ opacity:0; }
  .nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); background:#F3EEE4; }
  .pillars{ grid-template-columns:1fr; }
  .gallery{ grid-template-columns:repeat(2,1fr); }
  .anlage-gallery{ grid-template-columns:1fr; }
  .ag-large{ grid-row:auto; }
  .anlage-gallery img,.ag-large img{ aspect-ratio:3/2; }
  .features{ grid-template-columns:1fr; }
  .kc-row{ flex-direction:column; gap:.3rem; }
  .kc-label{ flex-basis:auto; }
}

@media (max-width:420px){
  .gallery{ grid-template-columns:1fr; }
  .hero-content{ padding-top:5rem; }
}

/* ---------------------------------------------------------------- a11y / motion */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  .hero-img{ animation:none; }
  .hero-scroll span{ animation:none; }
  .reveal{ opacity:1; transform:none; transition:none; }
  *{ transition-duration:.01ms !important; }
}

:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:2px; }
.kontakt :focus-visible,.hero :focus-visible,.site-header :focus-visible{ outline-color:#F3EEE4; }