/* HPlanung – Stylesheet */
:root{
  --color-primary:#1A1A1A;
  --color-accent:#E31D1D;
  --color-accent-light:#F24141;
  --color-accent-dark:#B31515;
  --color-bg:#FAFAFA;
  --color-bg-alt:#F0F0F0;
  --color-text:#1A1A1A;
  --color-text-muted:#6A6A6A;
  --color-white:#FFFFFF;
  --color-border:#E0E0E0;
  --font-display:Georgia,"Times New Roman",serif;
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --maxw:1240px;
  --gutter:clamp(1rem,4vw,2.5rem);
  --radius:2px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px;border-radius:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-primary);color:#fff;padding:.8rem 1.2rem;z-index:100;text-decoration:none}
.skip-link:focus{left:1rem;top:1rem}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--color-text);
  background:var(--color-bg);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--color-accent)}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.15;margin:0 0 .6em;color:var(--color-primary);letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5.5vw,4.4rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.8rem)}
h3{font-size:clamp(1.25rem,2vw,1.55rem)}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
section{padding:clamp(3.5rem,8vw,6rem) 0}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--color-accent);font-weight:600;margin-bottom:1rem}
.muted{color:var(--color-text-muted)}

/* Buttons */
.btn{
  display:inline-block;
  padding:.95rem 1.7rem;
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.03em;
  border:1.5px solid var(--color-primary);
  background:var(--color-primary);
  color:var(--color-white);
  border-radius:var(--radius);
  cursor:pointer;
  transition:all .25s;
  text-transform:uppercase;
}
.btn:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-white)}
.btn--ghost{background:transparent;color:var(--color-primary)}
.btn--ghost:hover{background:var(--color-primary);color:var(--color-white)}
.btn--light{background:var(--color-white);border-color:var(--color-white);color:var(--color-primary)}
.btn--light:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-white)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,243,238,.95);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--color-border);
}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;padding-top:1.1rem;padding-bottom:1.1rem;gap:2rem}
.brand{display:flex;align-items:center;gap:.9rem;line-height:1;text-decoration:none}
.brand__logo{height:44px;width:auto;display:block}
.brand__text{display:flex;flex-direction:column;font-family:var(--font-display)}
.brand__name{font-size:1.4rem;font-weight:600;color:var(--color-primary);display:none}
.brand__tag{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--color-text-muted);margin-top:.25rem;font-family:var(--font-body);font-weight:500}
.site-footer .brand__logo{filter:brightness(0) invert(1)}
.site-footer .brand__tag{color:rgba(255,255,255,.6)}
.nav{display:flex;align-items:center;gap:2rem}
.nav a{font-size:.92rem;font-weight:500;color:var(--color-primary);position:relative;padding:.4rem 0}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--color-accent);transition:width .25s}
.nav a:hover::after,.nav a.is-active::after{width:100%}
.lang-switch{display:inline-flex;align-items:center;gap:.35rem;margin-left:.5rem;padding-left:1.2rem;border-left:1px solid var(--color-border)}
.lang-switch__btn{background:none;border:0;font:inherit;font-size:.82rem;font-weight:600;letter-spacing:.08em;color:var(--color-text-muted);cursor:pointer;padding:.3rem .1rem;transition:color .2s}
.lang-switch__btn:hover{color:var(--color-primary)}
.lang-switch__btn.is-active{color:var(--color-accent)}
.lang-switch__sep{color:var(--color-border);font-size:.82rem}
@media (max-width:860px){
  .lang-switch{margin-left:0;padding-left:0;border-left:0;border-top:1px solid var(--color-border);width:100%;padding-top:1rem;margin-top:.5rem}
}
.nav-toggle{display:none;background:none;border:0;width:42px;height:42px;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--color-primary);margin:5px auto;transition:transform .3s,opacity .3s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:860px){
  .nav-toggle{display:block}
  .nav{
    position:fixed;inset:72px 0 auto 0;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    background:var(--color-bg);
    border-bottom:1px solid var(--color-border);
    padding:1rem var(--gutter) 2rem;
    transform:translateY(-120%);
    transition:transform .35s ease;
  }
  .nav.is-open{transform:translateY(0)}
  .nav a{padding:1rem 0;width:100%;border-bottom:1px solid var(--color-border);font-size:1.05rem}
}

/* Hero */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  overflow:hidden;
}
.hero--dark{
  background:
    radial-gradient(ellipse at 80% 20%,rgba(227,29,29,.08),transparent 60%),
    linear-gradient(180deg,#0A0A0A 0%,#1A1A1A 100%);
  color:var(--color-white);
  border-bottom:1px solid #000;
}

/* Single, subtle HP logo watermark on dark hero */
.hero__watermark{
  position:absolute;
  top:50%;right:3%;
  transform:translateY(-50%);
  width:min(520px,42%);
  aspect-ratio:3/1;
  z-index:0;
  pointer-events:none;
  background-image:url('../img/logo-white.svg');
  background-repeat:no-repeat;
  background-position:center right;
  background-size:contain;
  opacity:.07;
}
@media (max-width:760px){
  .hero__watermark{
    top:auto;bottom:6%;right:50%;
    transform:translateX(50%);
    width:min(280px,70%);
    background-position:center;
    opacity:.06;
  }
}

.hero__content{position:relative;z-index:2;padding:3rem 0;max-width:780px}
@media (max-width:760px){
  .hero__content{padding:2.5rem .5rem 4rem}
}
.hero__seals{
  display:flex;align-items:center;gap:1.8rem;flex-wrap:wrap;
  margin:.6rem 0 1.6rem;
}
.hero__seals img{
  height:120px;width:auto;
  filter:drop-shadow(0 6px 18px rgba(0,0,0,.12));
  transition:transform .25s;
}
.hero--dark .hero__seals img{
  width:120px;height:120px;
  object-fit:contain;
  background:#fff;
  border-radius:50%;
  padding:10px;
  box-sizing:border-box;
  box-shadow:0 8px 24px rgba(0,0,0,.45);
  filter:none;
}
@media (max-width:500px){
  .hero--dark .hero__seals img{width:90px;height:90px}
}
.hero__seals img:hover{transform:translateY(-2px)}
@media (max-width:500px){
  .hero__seals img{height:90px}
  .hero__seals{gap:1rem}
}
.intro__img--placeholder{
  background:
    linear-gradient(135deg,var(--color-bg-alt) 0%,#e0ddd4 100%);
  position:relative;
}
.intro__img--placeholder::after{
  content:"";position:absolute;inset:18%;
  border:1.5px solid var(--color-accent);
  border-radius:2px;
  opacity:.5;
}
.hero h1{margin-bottom:.4em}
.hero h1 em{font-style:normal;display:block;font-size:.55em;letter-spacing:.2em;text-transform:uppercase;font-family:var(--font-body);font-weight:500;margin-bottom:1rem}
.hero--dark h1{color:var(--color-white)}
.hero--dark h1 em{color:var(--color-accent-light)}
.hero p.lead{font-size:clamp(1.05rem,1.5vw,1.25rem);max-width:620px;margin-bottom:1rem}
.hero--dark p.lead{color:rgba(255,255,255,.88);font-weight:400}
.hero__actions{display:flex;gap:1rem;flex-wrap:wrap}

/* Sections */
.section-head{max-width:720px;margin-bottom:3rem}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* Badges */
.badges{display:flex;flex-wrap:wrap;gap:.6rem;margin:1.5rem 0}
.badge{
  display:inline-flex;align-items:center;
  padding:.5rem 1rem;
  border:1px solid var(--color-border);
  border-radius:999px;
  font-size:.82rem;font-weight:500;
  background:var(--color-white);
  color:var(--color-text-muted);
}
.badge--accent{background:var(--color-accent);color:var(--color-white);border-color:var(--color-accent)}

/* Intro grid */
.intro{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media (max-width:760px){.intro{grid-template-columns:1fr}}
.intro__img{aspect-ratio:4/5;background:var(--color-bg-alt);border-radius:var(--radius);overflow:hidden}
.intro__img img{width:100%;height:100%;object-fit:cover}

/* Cards / Project grid */
.grid{display:grid;gap:1.6rem}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
@media (max-width:880px){.grid--3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid--3,.grid--2{grid-template-columns:1fr}}

.project-card{
  position:relative;display:block;
  background:var(--color-white);
  border:1px solid var(--color-border);
  overflow:hidden;
  border-radius:var(--radius);
  transition:transform .35s,box-shadow .35s;
  cursor:pointer;
}
.project-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -20px rgba(0,0,0,.2)}
.project-card__img{aspect-ratio:3/2;overflow:hidden;background:var(--color-bg-alt)}
.project-card__img img{width:100%;height:100%;object-fit:cover;object-position:center 35%;transition:transform .6s}
.project-card:hover .project-card__img img{transform:scale(1.05)}
.project-card__body{padding:1.4rem 1.5rem 1.6rem}
.project-card__type{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--color-accent);font-weight:600}
.project-card h3{margin:.5rem 0 .3rem;font-size:1.25rem}
.project-card__loc{font-size:.88rem;color:var(--color-text-muted);margin:0}

/* Filters */
.filters{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:2.5rem}
.filter{
  padding:.55rem 1.2rem;
  background:transparent;
  border:1px solid var(--color-border);
  border-radius:999px;
  font:inherit;font-size:.85rem;font-weight:500;
  color:var(--color-text-muted);
  cursor:pointer;transition:all .2s;
}
.filter:hover{color:var(--color-primary);border-color:var(--color-primary)}
.filter.is-active{background:var(--color-primary);color:var(--color-white);border-color:var(--color-primary)}

/* Timeline (Leistungen) */
.timeline{position:relative;margin:2rem 0}
.timeline::before{
  content:"";position:absolute;left:23px;top:0;bottom:0;width:2px;
  background:var(--color-border);
}
.phase{position:relative;padding:0 0 1rem 4rem;margin-bottom:1rem}
.phase__num{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;
  background:var(--color-bg);border:2px solid var(--color-accent);
  color:var(--color-accent);font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-size:1.1rem;
  z-index:1;
}
.phase__head{
  width:100%;text-align:left;background:var(--color-white);
  border:1px solid var(--color-border);border-radius:var(--radius);
  padding:1.1rem 1.4rem;cursor:pointer;font:inherit;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
  transition:all .2s;
}
.phase__head:hover{border-color:var(--color-accent)}
.phase__head h3{margin:0;font-size:1.1rem}
.phase__toggle{font-size:1.4rem;color:var(--color-accent);transition:transform .25s}
.phase[aria-expanded="true"] .phase__toggle{transform:rotate(45deg)}
.phase__body{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease;
  background:var(--color-white);
  border:1px solid var(--color-border);border-top:0;
  border-radius:0 0 var(--radius) var(--radius);
}
.phase[aria-expanded="true"] .phase__body{max-height:500px}
.phase__body-inner{padding:1.2rem 1.4rem 1.6rem;color:var(--color-text-muted)}

/* Service cards */
.service{
  padding:1.8rem;background:var(--color-white);
  border:1px solid var(--color-border);border-radius:var(--radius);
  transition:transform .25s,border-color .25s;
}
.service:hover{transform:translateY(-3px);border-color:var(--color-accent)}
.service h3{font-size:1.1rem;margin-bottom:.5rem}
.service p{font-size:.92rem;color:var(--color-text-muted);margin:0}
.service__icon{width:38px;height:38px;color:var(--color-accent);margin-bottom:1rem}

/* USP banner */
.usp{
  background:var(--color-primary);color:var(--color-white);
  text-align:center;padding:clamp(3rem,6vw,5rem) var(--gutter);
}
.usp h2{color:var(--color-white)}
.usp p{max-width:640px;margin:0 auto 1.6rem;color:rgba(255,255,255,.85)}

/* CTA banner */
.cta-banner{
  background:var(--color-bg-alt);
  text-align:center;
  padding:clamp(3rem,6vw,5rem) var(--gutter);
  border-top:1px solid var(--color-border);
  border-bottom:1px solid var(--color-border);
}
.cta-banner h2{margin-bottom:.5em}
.cta-banner p{max-width:560px;margin:0 auto 1.6rem;color:var(--color-text-muted)}

/* Footer */
.site-footer{background:var(--color-primary);color:rgba(255,255,255,.75);padding:4rem 0 2rem;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:2.5rem;margin-bottom:3rem}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:var(--color-white);font-size:.85rem;text-transform:uppercase;letter-spacing:.14em;margin-bottom:1rem;font-family:var(--font-body)}
.site-footer a{color:rgba(255,255,255,.75);display:block;padding:.3rem 0}
.site-footer a:hover{color:var(--color-accent-light)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:1.4rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;
  font-size:.82rem;color:rgba(255,255,255,.55);
}

/* Form */
.form{display:grid;gap:1.2rem;max-width:640px}
.form label{display:block;font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;margin-bottom:.4rem;color:var(--color-text-muted)}
.form input,.form select,.form textarea{
  width:100%;padding:.85rem 1rem;
  font:inherit;font-size:1rem;
  background:var(--color-white);
  border:1px solid var(--color-border);
  border-radius:var(--radius);
  color:var(--color-text);
  transition:border-color .2s;
}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--color-accent)}
.form textarea{resize:vertical;min-height:140px}
.form .hp{position:absolute;left:-9999px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
@media (max-width:600px){.form-row{grid-template-columns:1fr}}
.contact-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(2rem,5vw,4rem)}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
.contact-info{background:var(--color-bg-alt);padding:2rem;border-radius:var(--radius);border:1px solid var(--color-border)}
.contact-info h3{margin-top:0}
.contact-info p{margin:.4rem 0;font-size:.95rem}
.alert{padding:1rem 1.2rem;border-radius:var(--radius);margin-bottom:1.5rem;font-size:.95rem}
.alert--success{background:#E7F0E4;border:1px solid #9DBE94;color:#3F6135}
.alert--error{background:#F4E2E2;border:1px solid #C99090;color:#7A2E2E}

/* Lightbox */
.lightbox{
  position:fixed;inset:0;background:rgba(20,20,18,.94);z-index:100;
  display:none;align-items:center;justify-content:center;
  padding:2rem;
}
.lightbox.is-open{display:flex}
.lightbox__img{max-width:90vw;max-height:85vh;object-fit:contain}
.lightbox__close{
  position:absolute;top:1.5rem;right:1.5rem;
  background:none;border:0;color:#fff;font-size:2.5rem;cursor:pointer;
  width:48px;height:48px;line-height:1;
}
.lightbox__nav{
  position:absolute;top:50%;transform:translateY(-50%);
  background:none;border:0;color:#fff;font-size:3rem;cursor:pointer;
  width:60px;height:60px;
}
.lightbox__nav--prev{left:1rem}
.lightbox__nav--next{right:1rem}
.lightbox__caption{position:absolute;bottom:2rem;left:0;right:0;text-align:center;color:#fff;font-size:.95rem;opacity:.8}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s,transform .8s}
.reveal.is-visible{opacity:1;transform:none}

/* Page header (subpages) */
.page-header{
  background:var(--color-bg-alt);
  padding:clamp(4rem,8vw,7rem) 0 clamp(3rem,6vw,4.5rem);
  border-bottom:1px solid var(--color-border);
}
.page-header p{max-width:640px;color:var(--color-text-muted);font-size:1.1rem}

/* Team */
.team-card{display:flex;align-items:flex-start;gap:1.4rem;text-align:left;padding:2.2rem 2rem;background:var(--color-white);border:1px solid var(--color-border);border-left:4px solid var(--color-accent);border-radius:var(--radius)}
.team-card__body{flex:1;min-width:0}
.team-card h3{margin:.4rem 0 .6rem;font-size:1.35rem;min-height:2.6em;line-height:1.3}
.team-card p{font-size:.95rem;color:var(--color-text-muted);margin:0}
.team-card__role{display:block;font-size:.72rem;line-height:1.5;letter-spacing:.16em;text-transform:uppercase;color:var(--color-accent);font-weight:600;min-height:3em}
.team-card__img{aspect-ratio:1;background:var(--color-bg-alt);border-radius:50%;overflow:hidden;width:160px;flex-shrink:0;border:3px solid var(--color-accent)}
.team-card__img img{width:100%;height:100%;object-fit:cover;display:block}
.team-card h3{margin:.4rem 0 .2rem}
.team-card p{font-size:.9rem;color:var(--color-text-muted)}
@media (max-width:600px){.team-card{flex-direction:column}.team-card h3,.team-card__role{min-height:0}}

/* Prose */
.prose p{max-width:65ch}
.prose ul{max-width:65ch;padding-left:1.2rem}
.prose ul li{margin:.4rem 0}