/* ===== Felle Engineering – gemeinsames Stylesheet =====
   Variante wird über <html data-style="dunkel|hell"> gewählt. */

:root,[data-style="dunkel"]{
  --bg:#0d0f11; --bg-2:#15181c; --card:#1a1e23; --line:#2a2f36;
  --text:#eef1f4; --muted:#9aa3ad; --accent:#ff4d1a; --accent-ink:#fff;
  --head:"Barlow Condensed",Impact,sans-serif; --body:Inter,system-ui,sans-serif;
  --head-weight:700; --head-case:uppercase; --head-track:.02em;
  --radius:6px; --hero-overlay:linear-gradient(180deg,rgba(13,15,17,.55),rgba(13,15,17,.95));
}
[data-style="hell"]{
  --bg:#ffffff; --bg-2:#f3f5f7; --card:#ffffff; --line:#e1e5ea;
  --text:#11161c; --muted:#5b6672; --accent:#0a5cff; --accent-ink:#fff;
  --head:"Space Grotesk",system-ui,sans-serif; --body:Inter,system-ui,sans-serif;
  --head-weight:600; --head-case:none; --head-track:-.01em;
  --radius:12px; --hero-overlay:linear-gradient(180deg,rgba(255,255,255,.6),rgba(255,255,255,.96));
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--body);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--head);font-weight:var(--head-weight);text-transform:var(--head-case);letter-spacing:var(--head-track);line-height:1.05}
.wrap{max-width:1140px;margin:0 auto;padding:0 16px}
section{padding:88px 0}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:.8rem}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 24px;border-radius:var(--radius);font-weight:600;text-decoration:none;border:0;cursor:pointer;font-size:1rem;transition:.2s}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-accent:hover{filter:brightness(1.1)}
.btn-line{border:1.5px solid var(--line);color:var(--text);background:transparent}
.btn-line:hover{border-color:var(--accent);color:var(--accent)}

/* Platzhalter für Bilder – später durch <img> ersetzen */
.ph{background:repeating-linear-gradient(45deg,var(--bg-2),var(--bg-2) 12px,var(--card) 12px,var(--card) 24px);border:1px dashed var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.85rem;text-align:center;padding:12px}

/* Header */
header{position:fixed;inset:0 0 auto;z-index:50;transition:.25s}
header.scrolled{background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;justify-content:space-between;align-items:center;height:70px}
.logo{font-family:var(--head);font-weight:var(--head-weight);text-transform:var(--head-case);font-size:1.5rem;text-decoration:none;letter-spacing:var(--head-track)}
.logo b{color:var(--accent)}
.menu{display:flex;gap:28px;list-style:none;align-items:center}
.menu a{text-decoration:none;font-weight:500;font-size:.95rem;color:var(--muted)}
.menu a:hover{color:var(--text)}
.menu .btn{color:var(--accent-ink);padding:10px 18px}
.burger{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:6px}
@media(max-width:860px){
  .burger{display:block}
  .menu{position:fixed;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .3s}
  .menu.open{max-height:480px}
  .menu li a{display:block;padding:15px 20px;border-top:1px solid var(--line)}
  .menu .btn{margin:12px 16px 16px;justify-content:center}
}

/* Hero */
.hero{position:relative;min-height:94vh;display:flex;align-items:center;padding-top:70px;isolation:isolate;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg.ph{border:0;border-radius:0;align-items:flex-end;padding-bottom:20px}
.hero::after{content:"";position:absolute;inset:0;background:var(--hero-overlay);z-index:-1}
.hero h1{font-size:clamp(2.8rem,8vw,6rem);max-width:12ch;margin-bottom:1.2rem}
.hero h1 span{color:var(--accent)}
.hero p{font-size:1.15rem;color:var(--muted);max-width:46ch;margin-bottom:2rem}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap}
.stats{display:flex;gap:40px;flex-wrap:wrap;margin-top:3.5rem;padding-top:1.6rem;border-top:1px solid var(--line);max-width:640px}
.stats div{font-size:.88rem;color:var(--muted)}
.stats b{display:block;font-family:var(--head);font-size:1.7rem;color:var(--text);font-weight:var(--head-weight)}

/* Leistungen */
.head{max-width:640px;margin-bottom:48px}
.head h2{font-size:clamp(2rem,5vw,3.2rem);margin-bottom:.8rem}
.head p{color:var(--muted)}
.services{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.service{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s;position:relative;overflow:hidden}
.service:hover{border-color:var(--accent);transform:translateY(-2px)}
.service .num{font-family:var(--head);color:var(--accent);font-size:.95rem;font-weight:var(--head-weight);margin-bottom:12px;display:block}
.service h3{font-size:1.7rem;margin-bottom:10px}
.service p{color:var(--muted);margin-bottom:16px}
.service ul{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.service li{font-size:.82rem;padding:5px 11px;border:1px solid var(--line);border-radius:999px;color:var(--muted)}
@media(max-width:760px){.services{grid-template-columns:1fr}}

/* Ablauf */
.alt{background:var(--bg-2)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{border-top:2px solid var(--accent);padding-top:18px}
.step h3{font-size:1.3rem;margin-bottom:6px}
.step h3::before{counter-increment:s;content:"0" counter(s) " ";color:var(--accent)}
.step p{color:var(--muted);font-size:.95rem}
@media(max-width:860px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}

/* Galerie */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:220px;gap:12px}
.gallery .big{grid-column:span 2;grid-row:span 2}
@media(max-width:760px){.gallery{grid-template-columns:1fr 1fr;grid-auto-rows:150px}}

/* Anfrage */
.contact-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:56px;align-items:start}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:32px}}
.info-list{list-style:none;margin-top:28px}
.info-list li{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.info-list .k{min-width:90px;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);padding-top:3px}
.info-list a{text-decoration:none}
form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.row2{grid-template-columns:1fr}}
label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}
.field{margin-bottom:16px}
input,select,textarea{width:100%;padding:12px 14px;font:inherit;font-size:16px;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:calc(var(--radius) - 2px)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
textarea{min-height:120px;resize:vertical}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--muted);font-weight:400}
.check input{width:auto;margin-top:4px}
.hp{position:absolute;left:-9999px}
.form-msg{margin-top:14px;padding:12px 14px;border-radius:calc(var(--radius) - 2px);font-size:.95rem;display:none}
.form-msg.ok{display:block;background:color-mix(in srgb,#1db954 18%,transparent);border:1px solid #1db954}
.form-msg.err{display:block;background:color-mix(in srgb,#e5484d 18%,transparent);border:1px solid #e5484d}
form .btn{width:100%;justify-content:center;margin-top:6px}
form .btn[disabled]{opacity:.6;cursor:wait}

footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:.9rem}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{text-decoration:none;margin-left:18px}
footer a:first-child{margin-left:0}
footer a:hover{color:var(--accent)}

/* Unterseiten (Impressum/Datenschutz/Admin) */
.page{max-width:820px;margin:0 auto;padding:110px 16px 72px}
.page h1{font-size:clamp(2rem,5vw,3rem);margin-bottom:24px}
.page h2{font-size:1.3rem;margin:28px 0 8px}
.page p{color:var(--muted);margin-bottom:10px}
.todo{background:color-mix(in srgb,var(--accent) 12%,transparent);border:1px dashed var(--accent);border-radius:var(--radius);padding:14px 16px;margin:12px 0;color:var(--text)}