/*
Theme Name: TreppenVision
Theme URI: https://www.treppenvision.com
Author: TreppenVision
Author URI: https://www.treppenvision.com
Description: Premium One-Page WordPress Theme für TreppenVision – individuelle Treppenlösungen. Dunkle, editoriale Luxus-Ästhetik mit Gold-Akzenten, gebaut für Elementor-Kompatibilität und volle Mobile-Responsivität.
Version: 2.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: treppenvision
*/

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root{
  --bg:#0B0B0B;
  --bg-section:#111111;
  --gold:#C89A3D;
  --gold-light:#E3BE73;
  --white:#FFFFFF;
  --text-secondary:#B8B8B8;
  --hairline:rgba(200,154,61,0.22);
  --radius:16px;
  --display:'Cormorant Garamond', serif;
  --body-font:'Inter', sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--white);
  font-family:var(--body-font);
  font-weight:300;
  line-height:1.6;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.container{max-width:1200px;margin:0 auto;padding:0 40px;}
@media(max-width:768px){.container{padding:0 24px;}}

h1,h2,h3,h4{font-family:var(--display);font-weight:500;letter-spacing:0.01em;line-height:1.15;}
.eyebrow{
  font-family:var(--body-font);
  font-size:12px;
  letter-spacing:0.28em;
  text-transform:uppercase;
  color:var(--gold);
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:18px;
}
.eyebrow::after{content:'';width:36px;height:1px;background:var(--gold);opacity:0.6;}
.accent{color:var(--gold);}
.secondary{color:var(--text-secondary);}

.stair-divider{width:64px;height:28px;margin-bottom:22px;}
.stair-divider svg{width:100%;height:100%;display:block;}

/* ---------------- BUTTONS ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:16px 34px;
  border-radius:var(--radius);
  font-size:13px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  font-weight:500;
  transition:all .35s ease;
  cursor:pointer;
  border:1px solid transparent;
}
.btn-primary{background:var(--gold);color:#0B0B0B;}
.btn-primary:hover{background:var(--gold-light);transform:translateY(-2px);}
.btn-outline{border-color:var(--hairline);color:var(--white);}
.btn-outline:hover{border-color:var(--gold);color:var(--gold);}

/* ---------------- HEADER ---------------- */
header#site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:26px 0;
  background:transparent;
  transition:background .4s ease, padding .4s ease, border-color .4s ease;
  border-bottom:1px solid transparent;
}
header#site-header.scrolled{
  background:rgba(11,11,11,0.86);
  backdrop-filter:blur(10px);
  padding:16px 0;
  border-bottom:1px solid var(--hairline);
}
header#site-header .container{
  max-width:100%;
  width:100%;
  padding:0 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;flex-wrap:nowrap;
}
@media(max-width:1100px){header#site-header .container{padding:0 32px;}}
@media(max-width:600px){header#site-header .container{padding:0 20px;}}
.logo{display:flex;align-items:center;gap:12px;font-family:var(--display);font-size:22px;letter-spacing:0.08em;white-space:nowrap;flex-shrink:0;}
.logo svg{width:26px;height:26px;}
.logo .light{color:var(--white);}
.logo .gold{color:var(--gold);}
.main-nav{min-width:0;}
.main-nav ul{display:flex;gap:30px;list-style:none;white-space:nowrap;}
.main-nav a{font-size:13px;letter-spacing:0.06em;text-transform:uppercase;color:var(--white);opacity:0.85;transition:opacity .3s, color .3s;white-space:nowrap;}
.main-nav a:hover{opacity:1;color:var(--gold);}
.header-cta{display:flex;align-items:center;gap:24px;flex-shrink:0;}
.header-cta .btn{white-space:nowrap;padding:16px 26px;}
@media(max-width:1250px){
  .main-nav ul{gap:20px;}
  .main-nav a{font-size:12px;letter-spacing:0.03em;}
  .header-cta .btn{padding:14px 20px;font-size:12px;}
}
.nav-toggle{
  display:none;background:none;border:none;color:var(--white);font-size:22px;cursor:pointer;
  width:44px;height:44px;align-items:center;justify-content:center;
}
.mobile-nav{display:none;}
@media(max-width:900px){
  .main-nav{display:none;}
  .header-cta .btn{display:none;}
  .nav-toggle{display:flex;}
  .mobile-nav{
    display:flex;flex-direction:column;position:fixed;inset:0;background:#0B0B0B;z-index:99;
    padding:110px 28px 32px;transform:translateX(100%);transition:transform .4s ease;
    overflow-y:auto;-webkit-overflow-scrolling:touch;
    padding-top:calc(110px + env(safe-area-inset-top));
    padding-bottom:calc(32px + env(safe-area-inset-bottom));
  }
  .mobile-nav.open{transform:translateX(0);}
  .mobile-nav ul{list-style:none;display:flex;flex-direction:column;gap:8px;flex:1;}
  .mobile-nav ul li{border-bottom:1px solid var(--hairline);}
  .mobile-nav a{
    display:block;padding:16px 4px;font-family:var(--display);font-size:26px;color:var(--white);
  }
  .mobile-nav .btn{margin-top:28px;display:flex;justify-content:center;width:100%;}
  body.tv-nav-open{overflow:hidden;}
}
@media(max-width:420px){
  .mobile-nav a{font-size:22px;padding:14px 4px;}
  .mobile-nav{padding-left:20px;padding-right:20px;}
  .logo{font-size:18px;gap:8px;}
  .logo svg{width:22px;height:22px;}
}

/* ---------------- HERO ---------------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  background-color:#161513;
}
.hero-bg{
  position:absolute;
  inset:-12% 0 -12% 0;
  background:linear-gradient(180deg, rgba(11,11,11,0.35) 0%, rgba(11,11,11,0.55) 55%, #0B0B0B 100%),
             center/cover no-repeat;
  will-change:transform;
  z-index:0;
}
.hero-inner{position:relative;z-index:2;padding-bottom:110px;width:100%;}
.hero h1{
  font-size:clamp(38px,8vw,86px);
  max-width:14ch;
}
.hero p.lede{
  font-size:17px;
  max-width:46ch;
  color:var(--text-secondary);
  margin:22px 0 34px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero-actions .btn{white-space:nowrap;}
.hero-tags{
  display:flex;gap:22px;margin-top:48px;padding-top:24px;
  border-top:1px solid var(--hairline);
  font-size:12px;letter-spacing:0.2em;text-transform:uppercase;color:var(--gold);
  flex-wrap:wrap;
}
@media(max-width:600px){.hero-inner{padding-bottom:70px;}.hero-tags{gap:16px;margin-top:40px;}}
@media(max-width:480px){
  .hero h1{font-size:clamp(32px,9.5vw,44px);}
  .hero p.lede{font-size:15px;margin:18px 0 28px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{padding:14px 22px;font-size:12px;}
  .hero-tags{gap:16px;margin-top:36px;padding-top:20px;font-size:11px;}
}

/* ---------------- SECTION SHELL ---------------- */
section{padding:130px 0;}
section.on-dark{background:var(--bg);}
section.on-panel{background:var(--bg-section);}
@media(max-width:768px){section{padding:80px 0;}}

.section-head{max-width:640px;margin-bottom:64px;}
.section-head h2{font-size:clamp(32px,4.2vw,52px);}
.section-head p{color:var(--text-secondary);margin-top:18px;font-size:16px;max-width:52ch;}

/* ---------------- INTRO / ABOUT ---------------- */
.intro-grid{display:grid;grid-template-columns:0.95fr 1.05fr;gap:80px;align-items:center;}
.intro-grid img{border-radius:var(--radius);}
.intro-copy p{color:var(--text-secondary);margin-bottom:18px;font-size:16px;max-width:50ch;}
@media(max-width:900px){.intro-grid{grid-template-columns:1fr;gap:44px;}}

/* ---------------- WHY CHOOSE US ---------------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hairline);border-radius:var(--radius);overflow:hidden;}
.feature-card{background:var(--bg-section);padding:40px 32px;transition:background .3s;}
.feature-card:hover{background:#151412;}
.feature-card .icon{width:34px;height:34px;color:var(--gold);margin-bottom:22px;}
.feature-card h3{font-family:var(--body-font);font-weight:500;font-size:15px;letter-spacing:0.02em;text-transform:uppercase;margin-bottom:12px;}
.feature-card p{font-size:14px;color:var(--text-secondary);}
@media(max-width:900px){.feature-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.feature-grid{grid-template-columns:1fr;}}

.counters{display:flex;gap:80px;margin-top:70px;flex-wrap:wrap;}
.counter{font-family:var(--display);}
.counter .num{font-size:56px;color:var(--gold);display:block;}
.counter .label{font-size:13px;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-secondary);font-family:var(--body-font);}

/* ---------------- SERVICES ---------------- */
.services-list{border-top:1px solid var(--hairline);}
.service-row{
  display:grid;grid-template-columns:80px 1fr 240px;align-items:center;gap:24px;
  padding:34px 0;border-bottom:1px solid var(--hairline);
  transition:padding-left .3s ease;
}
.service-row:hover{padding-left:14px;background:rgba(200,154,61,0.04);}
.service-row .idx{font-family:var(--display);font-size:20px;color:var(--gold);}
.service-row h3{font-size:26px;font-weight:400;}
.service-row p{color:var(--text-secondary);font-size:14px;}
.service-row .arrow{justify-self:end;color:var(--gold);opacity:0;transition:opacity .3s;}
.service-row:hover .arrow{opacity:1;}
@media(max-width:768px){.service-row{grid-template-columns:50px 1fr;}.service-row p{grid-column:2;}.service-row .arrow{display:none;}}

/* ---------------- COLLECTIONS ---------------- */
.collection-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.collection-grid.collection-grid-4{grid-template-columns:repeat(4,1fr);}
@media(max-width:1100px){.collection-grid.collection-grid-4{grid-template-columns:repeat(2,1fr);}}
.collection-card{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:3/4;background:#1a1815;}
.collection-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.collection-card:hover img{transform:scale(1.06);}
.collection-card::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(11,11,11,0) 40%, rgba(11,11,11,0.92) 100%);
}
.collection-label{position:absolute;left:28px;right:28px;bottom:28px;z-index:2;}
.collection-label .tag{font-size:11px;letter-spacing:0.2em;text-transform:uppercase;color:var(--gold);}
.collection-label h3{font-size:26px;margin-top:8px;}
.collection-label p{font-size:13px;color:var(--text-secondary);margin-top:8px;}
@media(max-width:900px){.collection-grid{grid-template-columns:1fr;}}

/* ---------------- GALLERY ---------------- */
.gallery-filters{display:flex;gap:14px;margin-bottom:40px;flex-wrap:wrap;}
.gallery-filters button{
  background:none;border:1px solid var(--hairline);color:var(--text-secondary);
  padding:10px 22px;border-radius:999px;font-size:12px;letter-spacing:0.1em;text-transform:uppercase;
  cursor:pointer;transition:all .3s;
}
.gallery-filters button.active,.gallery-filters button:hover{border-color:var(--gold);color:var(--gold);}

.gallery-carousel{position:relative;}
.masonry{
  display:flex;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scroll-behavior:smooth;
  gap:16px;
  padding-bottom:18px;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
  scrollbar-color:var(--gold) transparent;
}
.masonry::-webkit-scrollbar{height:6px;}
.masonry::-webkit-scrollbar-track{background:var(--hairline);border-radius:6px;}
.masonry::-webkit-scrollbar-thumb{background:var(--gold);border-radius:6px;}
.masonry figure{
  flex:0 0 calc((100% - 4*16px)/5);
  scroll-snap-align:start;
  margin:0;border-radius:var(--radius);overflow:hidden;cursor:zoom-in;position:relative;
  aspect-ratio:3/4;background:#1a1815;
}
.masonry img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease;}
.masonry figure:hover img{transform:scale(1.06);}

.gallery-nav{
  display:flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:50%;
  border:1px solid var(--hairline);background:rgba(11,11,11,0.7);
  color:var(--gold);cursor:pointer;transition:border-color .3s, background .3s;
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;
}
.gallery-nav:hover{border-color:var(--gold);background:rgba(11,11,11,0.92);}
.gallery-nav.prev{left:-22px;}
.gallery-nav.next{right:-22px;}

@media(max-width:1100px){.masonry figure{flex:0 0 calc((100% - 2*16px)/3);}}
@media(max-width:640px){
  .masonry figure{flex:0 0 100%;}
  .gallery-nav{display:none;}
}

/* ---------------- PROCESS TIMELINE ---------------- */
.process-track{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;position:relative;}
.process-track::before{
  content:'';position:absolute;top:19px;left:0;right:0;height:1px;background:var(--hairline);
}
.process-step{position:relative;text-align:left;}
.process-step .step-num{
  width:38px;height:38px;border-radius:50%;background:var(--bg);border:1px solid var(--gold);
  color:var(--gold);display:flex;align-items:center;justify-content:center;font-family:var(--display);
  font-size:15px;margin-bottom:22px;position:relative;z-index:2;
}
.process-step h3{font-size:16px;font-weight:500;font-family:var(--body-font);text-transform:uppercase;letter-spacing:0.04em;margin-bottom:10px;}
.process-step p{font-size:13px;color:var(--text-secondary);}
@media(max-width:900px){.process-track{grid-template-columns:repeat(2,1fr);}.process-track::before{display:none;}}

/* ---------------- TESTIMONIALS ---------------- */
.testimonial{
  border:1px solid var(--hairline);border-radius:var(--radius);
  padding:64px;display:grid;grid-template-columns:1fr 260px;gap:60px;align-items:center;
}
.testimonial blockquote{font-family:var(--display);font-size:30px;font-weight:400;line-height:1.4;}
.testimonial cite{display:block;margin-top:26px;font-style:normal;font-size:13px;letter-spacing:0.1em;text-transform:uppercase;color:var(--gold);}
.testimonial img{border-radius:var(--radius);aspect-ratio:1;object-fit:cover;}
@media(max-width:768px){.testimonial{grid-template-columns:1fr;padding:36px;}.testimonial img{display:none;}}

/* ---------------- FAQ ---------------- */
.faq-item{border-bottom:1px solid var(--hairline);}
.faq-q{
  display:flex;justify-content:space-between;align-items:center;
  padding:28px 0;cursor:pointer;font-size:18px;font-family:var(--display);
}
.faq-q .plus{color:var(--gold);font-size:22px;transition:transform .3s;}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding-bottom:26px;color:var(--text-secondary);font-size:15px;max-width:70ch;}

/* ---------------- CONTACT CTA + FORM ---------------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:80px;}
.contact-info h2{font-size:clamp(30px,4vw,44px);margin-bottom:20px;}
.contact-info p{color:var(--text-secondary);margin-bottom:36px;max-width:44ch;}
.contact-detail{display:flex;gap:16px;align-items:flex-start;margin-bottom:22px;}
.contact-detail .icon{color:var(--gold);width:20px;margin-top:3px;}
.contact-detail div span{display:block;font-size:12px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.08em;}
.contact-detail div strong{font-weight:400;font-size:16px;}

form.contact-form{display:flex;flex-direction:column;gap:18px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.contact-form input,.contact-form select,.contact-form textarea{
  background:var(--bg-section);
  border:1px solid var(--hairline);
  border-radius:var(--radius);
  padding:16px 18px;
  color:var(--white);
  font-family:var(--body-font);
  font-size:14px;
  width:100%;
}
.contact-form textarea{min-height:120px;resize:vertical;}
.contact-form ::placeholder{color:#7a7a7a;}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--gold);}
.form-success{background:rgba(200,154,61,0.12);border:1px solid var(--gold);border-radius:var(--radius);padding:20px;font-size:14px;}
@media(max-width:900px){.contact-wrap{grid-template-columns:1fr;}.form-row{grid-template-columns:1fr;}}

.map-embed{border-radius:var(--radius);overflow:hidden;margin-top:100px;filter:grayscale(1) invert(0.92) contrast(0.9);height:420px;}
.map-embed iframe{width:100%;height:100%;border:0;}

/* ---------------- FOOTER ---------------- */
footer#site-footer{background:#080808;padding:90px 0 34px;border-top:1px solid var(--hairline);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:60px;margin-bottom:70px;}
.footer-col h4{font-size:12px;letter-spacing:0.14em;text-transform:uppercase;color:var(--gold);margin-bottom:20px;font-family:var(--body-font);font-weight:500;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:12px;font-size:14px;color:var(--text-secondary);}
.footer-col a:hover{color:var(--gold);}
.footer-brand p{color:var(--text-secondary);font-size:14px;margin-top:18px;max-width:32ch;}
.footer-social{display:flex;gap:14px;margin-top:22px;}
.footer-social a{width:36px;height:36px;border:1px solid var(--hairline);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:border-color .3s;}
.footer-social a:hover{border-color:var(--gold);}
.footer-bottom{display:flex;justify-content:space-between;padding-top:30px;border-top:1px solid var(--hairline);font-size:12px;color:#666;flex-wrap:wrap;gap:12px;}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr;}}

/* ---------------- SCROLL REVEAL ---------------- */
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s ease, transform .8s ease;}
[data-reveal="left"]{transform:translateX(-28px);}
[data-reveal="zoom"]{transform:scale(0.94);}
[data-reveal].is-visible{opacity:1;transform:none;}

/* ---------------- 3D TILT CARDS ---------------- */
.tilt-wrap{perspective:1200px;}
.tilt-card{
  transition:transform .5s cubic-bezier(.22,1,.36,1), box-shadow .5s ease;
  will-change:transform;
}
.tilt-card:hover{box-shadow:0 40px 70px -30px rgba(0,0,0,0.7);}
.tilt-glow{
  position:absolute;inset:0;z-index:3;pointer-events:none;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,50%), rgba(200,154,61,0.18), transparent 60%);
  opacity:0;transition:opacity .4s ease;
}
.tilt-card:hover .tilt-glow{opacity:1;}

/* Button 3D press */
.btn{position:relative;}
.btn-primary:active{transform:translateY(1px) scale(0.98);}

/* Counter float */
@keyframes float-y{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}
.counter:hover .num{animation:float-y 1.6s ease-in-out infinite;}

@media (prefers-reduced-motion: reduce){
  [data-reveal]{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  .tilt-card{transition:none !important;}
  .counter:hover .num{animation:none;}
}

/* ---------------- SCROLL REVEAL VARIANTS ---------------- */
[data-reveal="tilt"]{opacity:0;transform:perspective(1000px) rotateX(12deg) translateY(40px);transition:opacity .9s ease, transform .9s cubic-bezier(.22,1,.36,1);}
[data-reveal="tilt"].is-visible{opacity:1;transform:perspective(1000px) rotateX(0) translateY(0);}

/* WP core admin bar offset */
.admin-bar header#site-header{top:32px;}
@media screen and (max-width:782px){.admin-bar header#site-header{top:46px;}}

/* WP core alignment helpers */
.alignfull{width:100vw;position:relative;left:50%;right:50%;margin-left:-50vw;margin-right:-50vw;}
.screen-reader-text{position:absolute !important;left:-9999px;}