/* ═══════════════════════════════════════════════
   Alexander Graf Consulting – style.css v6
   NAV: transparent → dunkel on scroll
   FOOTER: dunkel mit Logo & Impressum/Datenschutz
   ═══════════════════════════════════════════════ */
:root {
  --brand:        #008C95;
  --brand-dark:   #006970;
  --brand-light:  #0aa8b3;
  --brand-pale:   rgba(0,140,149,0.09);
  --brand-border: rgba(0,140,149,0.30);
  --nav-bg:       #111c10;
  --footer-bg:    #111c10;
  --white:        #ffffff;
  --gray-bg:      #f3f5f3;
  --gray-200:     #e2e6e2;
  --gray-400:     #8fa08f;
  --gray-600:     #526352;
  --ink:          #1a2518;
  --mono: 'JetBrains Mono', monospace;
  --sh-sm: 0 1px 4px rgba(0,0,0,0.07);
  --sh-md: 0 4px 20px rgba(0,0,0,0.10);
  --sh-lg: 0 12px 48px rgba(0,0,0,0.13);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'DM Sans',sans-serif;background:var(--white);color:var(--ink);overflow-x:hidden;line-height:1.7;}
h1{font-family:'DM Serif Display',serif;font-size:clamp(44px,6vw,78px);line-height:1.05;color:var(--white);letter-spacing:-1px;}
h1 em{color:#7dddd3;font-style:italic;}
h2{font-family:'DM Serif Display',serif;font-size:clamp(32px,4.5vw,50px);line-height:1.1;letter-spacing:-0.3px;margin-bottom:16px;}
h2 em{font-style:italic;}
h3{font-family:'DM Serif Display',serif;font-size:21px;line-height:1.2;}
.section-label{font-family:'DM Sans',sans-serif;font-size:11px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;display:block;margin-bottom:12px;color:rgba(255,255,255,0.65);}
.section-label.dark{color:var(--brand);}
.container{max-width:1160px;margin:0 auto;padding:0 48px;}
.btn{display:inline-block;padding:13px 26px;border-radius:6px;font-family:'DM Sans',sans-serif;font-size:14px;font-weight:600;cursor:pointer;border:none;text-decoration:none;transition:all 0.25s;}
.btn-solid{background:var(--brand);color:#fff;}
.btn-solid:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,140,149,0.38);}
.btn-outline{background:transparent;color:var(--brand);border:1.5px solid var(--brand-border);}
.btn-outline:hover{background:var(--brand-pale);border-color:var(--brand);}
.btn-ghost-white{background:rgba(255,255,255,0.12);backdrop-filter:blur(8px);color:#fff;border:1.5px solid rgba(255,255,255,0.35);}
.btn-ghost-white:hover{background:rgba(255,255,255,0.22);}

/* ══ NAV — transparent initially, solid on scroll ══ */
#mainNav{
  position:fixed;top:0;left:0;right:0;z-index:500;
  height:72px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 48px;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background 0.4s ease, border-bottom 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}
#mainNav.scrolled{
  background:rgba(17,28,16,0.97);
  border-bottom:1px solid rgba(255,255,255,0.06);
  box-shadow:0 4px 24px rgba(0,0,0,0.5);
  backdrop-filter:blur(12px);
}
.nav-logo{display:flex;align-items:center;text-decoration:none;flex-shrink:0;position:relative;z-index:501;}
.nav-logo-img{
  height:44px;width:auto;object-fit:contain;display:block;
  border-radius:4px;
  filter:drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}
.nav-center{display:flex;align-items:center;list-style:none;gap:4px;position:relative;z-index:501;}
.nav-center li a{
  color:rgba(255,255,255,0.85);text-decoration:none;
  font-size:13.5px;font-weight:500;
  padding:8px 16px;border-radius:6px;
  transition:all 0.2s;white-space:nowrap;
  display:block;
}
.nav-center li a:hover{color:#fff;background:rgba(255,255,255,0.1);}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0;position:relative;z-index:501;}

/* Language Pill */
.lang-pill{
  display:flex;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.18);
  border-radius:20px;padding:3px;gap:1px;
}
.lang-btn{
  background:none;border:none;
  padding:5px 14px;border-radius:16px;
  font-family:'DM Sans',sans-serif;font-size:12px;font-weight:700;
  cursor:pointer;color:rgba(255,255,255,0.45);
  transition:all 0.2s;letter-spacing:0.5px;
}
.lang-btn.active{background:var(--brand);color:#fff;}

/* CTA Button in Nav */
.nav-cta-btn{
  background:var(--brand);color:#fff !important;
  padding:9px 22px;border-radius:6px;
  font-family:'DM Sans',sans-serif;font-size:13px;font-weight:600;
  text-decoration:none;transition:background 0.2s;white-space:nowrap;
}
.nav-cta-btn:hover{background:var(--brand-dark);}

/* Burger */
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:5px;}
.burger span{width:22px;height:2px;background:rgba(255,255,255,0.8);display:block;transition:all 0.3s;}

/* Mobile Menu */
.mobile-menu{
  position:fixed;inset:0;z-index:490;
  background:var(--nav-bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:32px;
  transform:translateX(100%);transition:transform 0.35s ease;
}
.mobile-menu.open{transform:translateX(0);}
.mobile-menu a{font-family:'DM Serif Display',serif;font-size:36px;color:rgba(255,255,255,0.9);text-decoration:none;transition:color 0.2s;}
.mobile-menu a:hover{color:#7dddd3;}
.mobile-close{position:absolute;top:24px;right:24px;background:none;border:none;font-size:26px;cursor:pointer;color:rgba(255,255,255,0.7);}
.mobile-lang{display:flex;gap:8px;margin-top:16px;}
.mobile-lang .lang-btn{
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.18);
  padding:8px 20px;border-radius:20px;
  font-size:14px;font-weight:700;
  color:rgba(255,255,255,0.45);cursor:pointer;
  transition:all 0.2s;
}
.mobile-lang .lang-btn.active{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ══ HERO ══ */
#hero{min-height:100vh;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;}
.hero-bg{position:absolute;inset:0;background:url('architecture-864367_1920-1536x1024.jpg') center/cover no-repeat;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(160deg,rgba(5,20,12,0.62) 0%,rgba(0,40,32,0.48) 55%,rgba(0,20,16,0.38) 100%);z-index:1;}
.hero-content{position:relative;z-index:2;text-align:center;padding:140px 40px 80px;max-width:820px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.10);border:1px solid rgba(255,255,255,0.28);
  backdrop-filter:blur(6px);padding:6px 16px;border-radius:20px;
  font-family:var(--mono);font-size:11px;color:#a8ede7;
  letter-spacing:1.5px;text-transform:uppercase;margin-bottom:32px;
}
.hero-tag::before{content:'';width:6px;height:6px;border-radius:50%;background:#7dddd3;animation:blink 2s infinite;}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:0.3;}}
.hero-desc{font-size:17px;color:rgba(255,255,255,0.82);max-width:600px;margin:22px auto 40px;font-weight:300;line-height:1.85;}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* ══ ABOUT (grün) ══ */
#about{background:var(--brand);padding:88px 0 56px;}
#about h2{color:#fff;}
#about h2 em{color:#7dddd3;}
.about-top{display:grid;grid-template-columns:280px 1fr;gap:60px;align-items:stretch;}
.about-photo-col{display:flex;flex-direction:column;}
.about-photo{width:280px;height:100%;min-height:420px;object-fit:cover;object-position:top center;border-radius:6px;display:block;box-shadow:0 20px 60px rgba(0,0,0,0.45);flex:1;}
.about-photo-placeholder{width:280px;min-height:420px;flex:1;background:rgba(255,255,255,0.12);border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:'DM Serif Display',serif;font-size:64px;color:rgba(255,255,255,0.4);}
.about-text p{color:rgba(255,255,255,0.88);font-size:15.5px;line-height:1.9;font-weight:300;margin-bottom:18px;text-align:justify;hyphens:auto;-webkit-hyphens:auto;}
.about-text p strong{color:#fff;font-weight:600;}

/* Skills */
.skills-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:40px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.2);}
.skill-tag{background:#fff;border:1.5px solid rgba(0,140,149,0.45);border-radius:6px;padding:8px 16px;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:600;color:var(--brand);transition:all 0.22s ease;cursor:default;white-space:nowrap;}
.skill-tag:hover{background:var(--brand);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 4px 14px rgba(0,140,149,0.35);}

/* ══ STATS ══ */
.stats-bar{background:var(--brand-dark);}
.stats-inner{display:flex;}
.stat-item{flex:1;padding:32px 40px;border-right:1px solid rgba(255,255,255,0.16);text-align:center;}
.stat-item:last-child{border-right:none;}
.stat-num{font-family:'DM Serif Display',serif;font-size:34px;color:#fff;line-height:1;margin-bottom:5px;}
.stat-label{font-size:12px;color:rgba(255,255,255,0.62);letter-spacing:0.5px;}

/* ══ LEISTUNGEN (weiß) ══ */
#services{background:var(--white);padding:88px 0;}
#services h2{color:var(--ink);}
#services h2 em{color:var(--brand);}
.services-header{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:end;margin-bottom:52px;}
.services-intro{font-size:15px;color:var(--gray-600);font-weight:300;line-height:1.85;}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:28px;}
.service-card{background:var(--white);border:1px solid var(--gray-200);border-radius:10px;padding:32px 26px;box-shadow:var(--sh-sm);transition:all 0.3s;}
.service-card:hover{border-color:var(--brand);box-shadow:var(--sh-lg);transform:translateY(-4px);}
.svc-num{font-family:var(--mono);font-size:11px;color:var(--brand);margin-bottom:18px;letter-spacing:1px;}
.service-card h3{color:var(--ink);margin-bottom:16px;}
.svc-list{list-style:none;}
.svc-list li{font-size:13.5px;color:var(--gray-600);padding:5px 0 5px 16px;position:relative;border-bottom:1px solid var(--gray-bg);font-weight:300;}
.svc-list li::before{content:'→';position:absolute;left:0;color:var(--brand);font-size:11px;top:7px;}
.svc-list li:last-child{border-bottom:none;}
.retainer-box{background:var(--white);border:1.5px solid var(--brand-border);border-radius:10px;padding:32px;display:flex;align-items:flex-start;gap:24px;box-shadow:var(--sh-sm);}
.retainer-icon{font-size:34px;flex-shrink:0;margin-top:4px;}
.retainer-text h3{color:var(--ink);margin-bottom:8px;}
.retainer-text p{font-size:14px;color:var(--gray-600);font-weight:300;line-height:1.75;max-width:580px;}
.retainer-cta{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap;}

/* ══ PROJEKTE (grau) ══ */
#projects{background:var(--gray-bg);padding:88px 0;}
#projects h2{color:var(--ink);}
#projects h2 em{color:var(--brand);}
.projects-header{margin-bottom:44px;}
.projects-header p{font-size:15px;color:var(--gray-600);font-weight:300;line-height:1.8;margin-top:8px;max-width:560px;}
.projects-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.proj-tile{background:var(--white);border:1px solid var(--gray-200);border-radius:10px;padding:26px 26px 20px;box-shadow:var(--sh-sm);transition:all 0.3s;position:relative;overflow:hidden;}
.proj-tile::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--brand);opacity:0;transition:opacity 0.2s;}
.proj-tile:hover{box-shadow:var(--sh-lg);transform:translateY(-3px);border-color:var(--brand-border);}
.proj-tile:hover::before{opacity:1;}
.tile-title{font-family:'DM Serif Display',serif;font-size:17px;color:var(--ink);margin-bottom:8px;line-height:1.25;}
.tile-desc{font-size:13px;color:var(--gray-600);font-weight:300;line-height:1.65;margin-bottom:14px;}
.proj-skills{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px;}
.proj-skill{background:transparent;border:1px solid var(--gray-200);border-radius:5px;padding:5px 11px;font-family:'DM Sans',sans-serif;font-size:11.5px;font-weight:500;color:var(--gray-600);transition:all 0.2s;cursor:default;white-space:nowrap;}
.proj-skill:hover{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ══ KONTAKT (weiß) ══ */
#contact{background:var(--white);padding:88px 0;}
#contact h2{color:var(--ink);}
#contact h2 em{color:var(--brand);}
.contact-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:72px;}
.contact-info>p{font-size:15px;color:var(--gray-600);font-weight:300;line-height:1.85;margin-bottom:32px;}
.ci-list{display:flex;flex-direction:column;gap:16px;margin-bottom:28px;}
.ci-item{display:flex;align-items:flex-start;gap:14px;}
.ci-icon{width:38px;height:38px;flex-shrink:0;background:var(--brand-pale);border:1px solid var(--brand-border);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:16px;}
.ci-item strong{display:block;font-size:11px;color:var(--gray-400);text-transform:uppercase;letter-spacing:0.7px;margin-bottom:2px;}
.ci-item a,.ci-item span{color:var(--ink);font-size:14px;text-decoration:none;}
.ci-item a:hover{color:var(--brand);}
.social-links{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap;}
.social-btn{display:flex;align-items:center;gap:8px;background:var(--white);border:1px solid var(--gray-200);border-radius:6px;padding:10px 16px;color:var(--gray-600);text-decoration:none;font-size:13px;font-weight:500;box-shadow:var(--sh-sm);transition:all 0.2s;}
.social-btn:hover{border-color:var(--brand);color:var(--brand);}
.calendly-box{background:var(--brand-pale);border:1.5px solid var(--brand-border);border-radius:8px;padding:22px;display:flex;align-items:flex-start;gap:14px;}
.calendly-box-icon{font-size:26px;flex-shrink:0;margin-top:2px;}
.calendly-box p{font-size:13.5px;color:var(--gray-600);line-height:1.65;margin-bottom:12px;font-weight:300;}
.contact-form{background:var(--white);border:1px solid var(--gray-200);border-radius:12px;padding:40px;box-shadow:var(--sh-md);}
.contact-form h3{color:var(--ink);margin-bottom:28px;font-size:24px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px;}
.form-group{margin-bottom:14px;}
.form-group label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:0.7px;color:var(--gray-400);margin-bottom:7px;}
.form-group input,.form-group select,.form-group textarea{width:100%;background:var(--gray-bg);border:1px solid var(--gray-200);color:var(--ink);font-family:'DM Sans',sans-serif;font-size:14px;padding:11px 15px;border-radius:6px;outline:none;transition:border-color 0.2s;resize:vertical;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--brand);background:var(--white);}
.form-note{font-size:12px;color:var(--gray-400);margin-bottom:18px;line-height:1.65;}
.form-note a{color:var(--brand);text-decoration:none;}
.btn-submit{width:100%;background:var(--brand);color:#fff;padding:14px;border-radius:6px;border:none;font-family:'DM Sans',sans-serif;font-size:15px;font-weight:600;cursor:pointer;transition:all 0.25s;}
.btn-submit:hover{background:var(--brand-dark);box-shadow:0 6px 20px rgba(0,140,149,0.3);}

/* ══ FOOTER (dunkel) ══ */
footer{background:var(--footer-bg);padding:48px 0 24px;}
.footer-top{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:24px;
  padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,0.08);margin-bottom:20px;
}
.footer-brand{display:flex;align-items:center;}
.footer-logo-img{
  height:50px;width:auto;object-fit:contain;
  border-radius:4px;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,0.3));
}
.footer-links{display:flex;gap:24px;flex-wrap:wrap;align-items:center;}
.footer-links a{color:rgba(255,255,255,0.55);font-size:14px;text-decoration:none;transition:color 0.2s;font-weight:400;}
.footer-links a:hover{color:#7dddd3;}
.footer-separator{color:rgba(255,255,255,0.2);font-size:14px;user-select:none;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;}
.footer-bottom p{font-size:12.5px;color:rgba(255,255,255,0.30);}
.footer-bottom a{color:var(--brand);text-decoration:none;}
.footer-bottom a:hover{color:#7dddd3;}
.footer-tagline{color:rgba(255,255,255,0.25) !important;}

/* ══ FAQ ══ */
#faq{background:var(--white);padding:88px 0;}
#faq h2{color:var(--ink);}
#faq h2 em{color:var(--brand);}
.faq-header{margin-bottom:44px;}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.faq-item{background:var(--white);border:1px solid var(--gray-200);border-radius:10px;padding:0;overflow:hidden;transition:all 0.3s;box-shadow:var(--sh-sm);}
.faq-item[open]{border-color:var(--brand-border);box-shadow:var(--sh-md);}
.faq-item summary{padding:22px 26px;font-family:'DM Serif Display',serif;font-size:16px;color:var(--ink);cursor:pointer;line-height:1.35;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:color 0.2s;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';font-family:'DM Sans',sans-serif;font-size:22px;font-weight:300;color:var(--brand);flex-shrink:0;transition:transform 0.3s;}
.faq-item[open] summary::after{content:'-';}
.faq-item summary:hover{color:var(--brand);}
.faq-answer{padding:0 26px 22px;}
.faq-answer p{font-size:14px;color:var(--gray-600);line-height:1.85;font-weight:300;}

/* ══ MODALS ══ */
.modal-overlay{position:fixed;inset:0;z-index:999;background:rgba(10,20,10,0.82);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;padding:20px;}
.modal-overlay.open{display:flex;}
.modal-box{background:var(--white);border:1px solid var(--gray-200);border-radius:12px;max-width:680px;width:100%;max-height:82vh;overflow-y:auto;padding:40px;position:relative;box-shadow:var(--sh-lg);}
.modal-box h2{color:var(--ink);margin-bottom:20px;font-size:28px;}
.modal-box h3{font-family:'DM Sans',sans-serif;font-size:12px;font-weight:700;color:var(--brand);margin:20px 0 7px;text-transform:uppercase;letter-spacing:0.5px;}
.modal-box p{font-size:14px;color:var(--gray-600);line-height:1.8;margin-bottom:8px;}
.modal-box a{color:var(--brand);}
.modal-close{position:absolute;top:18px;right:18px;background:var(--gray-bg);border:1px solid var(--gray-200);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--gray-600);font-size:16px;cursor:pointer;transition:all 0.2s;}
.modal-close:hover{background:var(--gray-200);color:var(--ink);}
.modal-note{margin-top:16px;font-size:12px;color:var(--brand);background:var(--brand-pale);border:1px solid var(--brand-border);border-radius:6px;padding:12px 14px;}

/* ══ TOAST ══ */
.toast{position:fixed;bottom:28px;right:28px;z-index:9999;background:var(--ink);color:#fff;border-radius:10px;padding:16px 22px;display:flex;align-items:center;gap:12px;max-width:300px;box-shadow:var(--sh-lg);transform:translateY(100px);opacity:0;transition:all 0.4s cubic-bezier(.34,1.56,.64,1);}
.toast.show{transform:translateY(0);opacity:1;}
.toast strong{display:block;font-size:14px;}
.toast span{font-size:12px;color:rgba(255,255,255,0.6);}

/* ══ REVEAL ══ */
.reveal{opacity:0;transform:translateY(22px);transition:all 0.65s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

/* ══ RESPONSIVE ══ */
@media(max-width:960px){
  .container{padding:0 22px;}
  #mainNav{padding:0 22px;}
  .nav-center{display:none;}
  .nav-cta-btn{display:none;}
  .lang-pill{display:none;}
  .burger{display:flex;}
  .hero-content{padding:120px 20px 60px;}
  .hero-actions{flex-direction:column;align-items:center;}
  .hero-actions .btn{width:100%;max-width:320px;text-align:center;}
  .stats-inner{flex-wrap:wrap;}
  .stat-item{flex:50%;border-right:none;padding:20px;border-bottom:1px solid rgba(255,255,255,0.16);}
  .stat-item:nth-child(odd){border-right:1px solid rgba(255,255,255,0.16);}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-bottom:none;}
  .about-top{grid-template-columns:1fr;gap:32px;}
  .about-photo{width:100%;max-width:100%;min-height:auto;height:320px;}
  .services-header{grid-template-columns:1fr;gap:20px;}
  .services-grid{grid-template-columns:1fr;}
  .projects-grid{grid-template-columns:1fr;}
  .contact-layout{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .retainer-box{flex-direction:column;}
  .footer-top{flex-direction:column;align-items:flex-start;gap:20px;}
  .footer-links{gap:16px;}
  .faq-grid{grid-template-columns:1fr;}
  #about,#services,#projects,#contact,#faq{padding:64px 0;}
}
@media(max-width:540px){
  h1{font-size:40px;}
  .retainer-cta{flex-direction:column;}
  .contact-form{padding:24px 20px;}
  .footer-links{flex-direction:column;gap:12px;}
}