:root{
  --bg:#0f172a;
  --surface:#111827;
  --card:#1f2937;
  --txt:#e5e7eb;
  --muted:#9ca3af;
  --primary:#3b82f6;
  --accent:#3b82f6;
  --danger:#ef4444;
  --radius:12px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:linear-gradient(180deg,#0b1222, #0f172a);
  color:var(--txt);
  font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{opacity:.9}
.container{width:min(1200px,92%);margin-inline:auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(15,23,42,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-container{display:flex;align-items:center;justify-content:space-between;padding:.9rem 0}
.logo{font-weight:700;font-size:1.1rem;color:#fff}
.site-nav .nav-toggle{display:none;font-size:1.4rem;background:transparent;border:0;color:#fff;cursor:pointer}
.site-nav ul{display:flex;gap:1.25rem;list-style:none;margin:0;padding:0}
.site-nav a{color:#fff;opacity:.9}
.site-nav a:hover{opacity:1}
.hero-section{
  position:relative;isolation:isolate;
  min-height:64vh;display:grid;place-items:center;
  overflow:hidden;
}
.has-image{
  background:
    radial-gradient(1200px 600px at -10% -20%, rgba(59,130,246,.25), transparent 60%),
    radial-gradient(1200px 600px at 110% 120%, rgba(16,185,129,.25), transparent 60%),
    url('/files/hero-bg.jpg') center/cover no-repeat fixed;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(2,6,23,.55),rgba(2,6,23,.85));
  z-index:-1;
}
.hero-content{text-align:center}
.hero-content .kicker{
  color:var(--accent);letter-spacing:.08em;font-weight:600;margin:0 0 .35rem
}
.hero-content h1{font-size:clamp(2rem,4vw,3rem);margin:.2rem 0 .4rem}
.hero-content .sub{color:var(--muted);margin:.2rem auto 1.25rem;max-width:52ch}
.hero-cta{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:.8rem 1.1rem;border-radius:999px;border:1px solid transparent;font-weight:600}
.primary-btn{background:linear-gradient(135deg,var(--primary),#60a5fa);color:#fff;box-shadow:var(--shadow)}
.outline-btn{border-color:rgba(255,255,255,.35);color:#fff}
section{padding:64px 0}
h2{font-size:1.8rem;margin:0 0 1rem}
p{margin:0 0 .9rem}
.portfolio-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px
}
.portfolio-item{
  position:relative;border-radius:var(--radius);overflow:hidden;background:var(--card)
}
.portfolio-item img{aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.portfolio-item .overlay{
  position:absolute;inset:0;display:grid;place-items:end start;
  padding:14px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.55));
  opacity:0;transition:opacity .25s ease
}
.portfolio-item:hover img{transform:scale(1.04)}
.portfolio-item:hover .overlay{opacity:1}
.overlay h3{margin:0;font-size:1rem;color:#fff}
.about-grid{display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:start}
.about-image img{border-radius:50%;border:3px solid rgba(255,255,255,.1)}
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.skill-item span{display:block;margin-bottom:.35rem;color:#fff}
.skill-bar{height:8px;background:#0b1220;border-radius:999px;overflow:hidden}
.skill-progress{height:100%;background:linear-gradient(90deg,var(--accent),#34d399)}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.service-item{background:var(--card);border-radius:var(--radius);padding:18px;border:1px solid rgba(255,255,255,.06)}
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px}
.contact-list{list-style:none;margin:12px 0 0;padding:0}
.contact-list li{margin:.2rem 0}
.contact-form form{background:var(--card);padding:18px;border-radius:var(--radius);border:1px solid rgba(255,255,255,.06)}
.php-email-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{display:grid;gap:6px;margin-bottom:12px}
label{color:var(--muted);font-size:.925rem}
input, textarea{
  width:100%;padding:.7rem .85rem;border-radius:10px;border:1px solid rgba(255,255,255,.12);
  background:#0b1220;color:#fff;outline:none
}
input:focus, textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,130,246,.2)}
#anliegen{display:none}
.form-meta{display:grid;gap:.35rem;margin:.25rem 0 1rem;color:var(--muted);font-size:.85rem}
.actions{display:flex;justify-content:flex-end}
.site-footer{background:#0b1220;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:18px;padding:28px 0}
.footer-block h4{margin:.25rem 0 .5rem}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:.35rem}
.footer-links a{color:var(--txt);opacity:.8}
.footer-links a:hover{opacity:1}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding:12px 0;background:#08101d}
.footer-bottom-row{display:flex;align-items:center;justify-content:space-between}
.legal-links{display:flex;gap:1rem}
.legal-links a{color:var(--muted)}
.legal-links a:hover{color:#fff}
@media (max-width:1100px){
  .portfolio-grid{grid-template-columns:repeat(3,1fr)}
  .about-grid{grid-template-columns:1fr}
  .skills-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .portfolio-grid{grid-template-columns:repeat(2,1fr)}
  .skills-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr}
  .site-nav ul{display:none;flex-direction:column;position:absolute;right:4%;top:58px;background:#0b1220;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:10px 12px;box-shadow:var(--shadow)}
  .site-nav .nav-toggle{display:block}
  .site-nav ul.show{display:flex}
  .php-email-form .form-row{grid-template-columns:1fr}
}
.detail-gallery{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:16px;
  align-items:start;
}
.detail-gallery img{
  width:100%;
  height:clamp(200px,32vh,420px);
  object-fit:contain;               
  background:#0b1220;               
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.06);
}
.portfolio-details img{
  width:100%;
  max-width:100%;
  height:auto;
  border-radius:var(--radius);
}
figure img, .detail-hero img{
  max-height:520px;
  object-fit:contain;
}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;z-index:1000;padding:24px}
.lightbox.open{display:flex;align-items:center;justify-content:center}
.lb-figure{
  margin:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  max-width:clamp(320px,92vw,1600px);
  width:auto;
}
.lb-image{
  display:block;
  margin:0 auto;
  width:auto;               
  height:auto;
  max-width:calc(100vw - 96px);
  max-height:calc(100vh - 160px);
  object-fit:contain;
  border-radius:12px;
  box-shadow:0 10px 30px rgba(0,0,0,.5);
}
.lb-caption{
  color:#e5e7eb;font-size:.95rem;opacity:.9;text-align:center;max-width:80ch;margin-top:10px
}
.lb-btn{position:absolute;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:12px;padding:.35rem .6rem;cursor:pointer;backdrop-filter:blur(6px)}
.lb-close{top:18px;right:18px;font-size:1.6rem;line-height:1}
.lb-prev{left:18px;top:50%;transform:translateY(-50%);font-size:2rem}
.lb-next{right:18px;top:50%;transform:translateY(-50%);font-size:2rem}
.lb-btn:hover{background:rgba(255,255,255,.14)}
@media (max-width:720px){
  .lb-prev,.lb-next{font-size:1.6rem}
}