/* WorkSET Energy · weiches Marken-Design (an Bestandsauftritt angelehnt) · Schriften lokal */
@font-face{font-family:'Inter';font-weight:400;font-style:normal;font-display:swap;src:url('assets/fonts/inter-latin-400-normal.woff2') format('woff2')}
@font-face{font-family:'Inter';font-weight:500;font-style:normal;font-display:swap;src:url('assets/fonts/inter-latin-500-normal.woff2') format('woff2')}
@font-face{font-family:'Inter';font-weight:600;font-style:normal;font-display:swap;src:url('assets/fonts/inter-latin-600-normal.woff2') format('woff2')}

:root{
  --ink:#1B1F26; --steel:#6B7280; --paper:#FFFFFF; --paper2:#F7F8F9;
  --line:#ECEEF0; --red:#E05252; --red-dark:#C43F3F; --footer:#17191E;
  --disp:'Inter',sans-serif; --body:'Inter',sans-serif; --mono:'Inter',sans-serif;
  --r:22px; --r-sm:14px; --shadow:0 10px 30px rgba(27,31,38,.07);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--paper);font-size:16px;line-height:1.65}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* Navigation */
header{position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{flex:0 0 auto}
.logo img{height:42px;width:auto}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px;font-weight:500}
.nav-links>a,.dropdown>a{white-space:nowrap}
.nav-links a:hover{color:var(--red)}
.dropdown{position:relative}
.dropdown>a::after{content:'▾';font-size:10px;color:var(--steel);margin-left:5px;vertical-align:1px}
.dropdown-menu{display:none;position:absolute;top:100%;left:-16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);min-width:334px;padding:10px 0;box-shadow:var(--shadow)}
.dropdown:hover .dropdown-menu,.dropdown:focus-within .dropdown-menu{display:block}
.dropdown-menu a{display:block;padding:10px 20px;font-size:14.5px}
.dropdown-menu a:hover{background:var(--paper2);color:var(--red)}
.btn{display:inline-block;background:var(--red);color:#fff;padding:13px 26px;font-weight:600;font-size:15px;border:none;cursor:pointer;border-radius:999px;transition:background .2s}
.btn::after{content:'\00a0→'}
.btn:hover{background:var(--red-dark)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid #fff;margin-left:12px}
.btn.ghost:hover{border-color:var(--red);color:#fff;background:var(--red)}
.nav-links:not([style]) .btn{white-space:nowrap}
.burger{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:var(--ink)}

/* Hero */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--ink)}
.hero video,.hero .hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-inner{position:relative;padding:110px 0 130px;max-width:760px}
.eyebrow{font-size:14px;letter-spacing:.04em;color:#fff;opacity:.85;font-weight:500}
.hero h1{font-family:var(--disp);font-weight:700;font-size:clamp(32px,4.6vw,52px);line-height:1.14;margin:14px 0 18px;letter-spacing:-.01em}
.hero p{font-size:18px;line-height:1.65;max-width:620px;opacity:.95}
.hero .cta{margin-top:32px}

/* Zahlenleiste */
.stats{background:var(--paper);padding:34px 0 8px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{padding:26px 18px;text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.stat b{display:block;font-family:var(--disp);font-size:32px;font-weight:700;line-height:1;color:var(--red)}
.stat span{font-size:13px;color:var(--steel);display:block;margin-top:8px}

/* Abschnitte */
section{padding:82px 0}
section.alt{background:var(--paper2)}
.kicker{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--red);font-weight:600}
h2{font-family:var(--disp);font-size:clamp(28px,3.3vw,40px);font-weight:700;line-height:1.16;margin:12px 0 18px;letter-spacing:-.01em}
.lead{font-size:17.5px;color:var(--steel);max-width:740px}

/* Kacheln – abwechselnd weiß/rot, nummeriert */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px;counter-reset:svc}
.card{border:1px solid var(--line);background:var(--paper);padding:30px 26px;display:flex;flex-direction:column;border-radius:var(--r);box-shadow:var(--shadow);counter-increment:svc}
.card::before{content:"0" counter(svc);font-family:var(--disp);font-weight:700;font-size:30px;color:var(--red);margin-bottom:12px}
.card h3{font-family:var(--disp);font-size:20px;font-weight:600;line-height:1.25;margin-bottom:10px}
.card p{font-size:15px;color:var(--steel);flex:1}
.card a.more{font-size:14px;font-weight:600;color:var(--red);margin-top:18px}
.card a.more:hover{text-decoration:underline}
.tick{display:none}
.cards .card:nth-child(even){background:var(--red);border-color:var(--red)}
.cards .card:nth-child(even)::before{color:#fff;opacity:.85}
.cards .card:nth-child(even) h3{color:#fff}
.cards .card:nth-child(even) p{color:rgba(255,255,255,.92)}
.cards .card:nth-child(even) a.more{color:#fff;text-decoration:underline}

/* Methode */
.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:42px}
.method{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.method b{font-family:var(--disp);font-size:18px;font-weight:600;display:block;margin-bottom:8px}
.method p{font-size:15px;color:var(--steel)}

/* Projekt-Kacheln */
.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.proj{border:1px solid var(--line);background:var(--paper);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.proj .ph{aspect-ratio:4/3;overflow:hidden}
.proj .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.proj:hover .ph img{transform:scale(1.04)}
.plate{font-size:13px;color:var(--steel);padding:16px 18px;line-height:1.55}
.plate b{color:var(--ink);font-weight:600;display:block;font-size:14.5px;margin-bottom:2px}

/* Kontaktblock */
.contact{background:var(--ink);color:#fff}
.contact h2{color:#fff}
.contact .lead{color:#C7CDD4}
.contact .meta{font-size:15px;margin-top:26px;line-height:2.1;color:#C7CDD4}
.contact .meta a{color:#fff;border-bottom:2px solid var(--red)}

/* Footer */
footer{background:var(--footer);color:#8B95A1;padding:36px 0;font-size:13.5px}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot a{color:#C7CDD4}
.foot a:hover{color:#fff}

/* Unterseiten-Kopf */
.page-hero{position:relative;color:#fff;background:var(--ink);overflow:hidden}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62}
.page-hero .hero-inner{padding:92px 0 100px}
.page-hero h1{font-family:var(--disp);font-weight:700;font-size:clamp(30px,4vw,46px);line-height:1.15;margin:12px 0 16px;letter-spacing:-.01em}

/* Listen */
.speclist{margin-top:28px}
.speclist li{list-style:none;padding:13px 0 13px 32px;border-bottom:1px solid var(--line);position:relative;font-size:15.5px}
.speclist li::before{content:'✓';position:absolute;left:2px;top:12px;color:var(--red);font-weight:700}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:40px}
.two-col h3{font-family:var(--disp);font-size:21px;font-weight:600;margin-bottom:10px}
.two-col p{color:var(--steel);font-size:15.5px}
.note{border-radius:var(--r);background:#FBEDED;padding:22px 26px;margin-top:40px;font-size:15.5px}
.note a{color:var(--red);font-weight:600}

/* Bildstrecke */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:46px}
.strip figure img{aspect-ratio:4/3;object-fit:cover;width:100%;border-radius:var(--r-sm)}
.strip figcaption{font-size:12.5px;color:var(--steel);padding-top:10px;line-height:1.5}
figure img{border-radius:var(--r-sm)}
.inline-video{width:100%;border-radius:var(--r-sm);box-shadow:var(--shadow)}

/* FAQ & Phasen */
.faq{margin-top:34px}
.faq details{border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;background:var(--paper);box-shadow:var(--shadow);padding:0 20px}
.faq summary{cursor:pointer;padding:17px 30px 17px 0;font-weight:600;font-size:16px;list-style:none;position:relative}
.faq summary::after{content:'+';position:absolute;right:2px;top:12px;font-size:24px;color:var(--red);font-weight:400}
.faq details[open] summary::after{content:'–'}
.faq details p{padding:0 0 18px;color:var(--steel);font-size:15.5px;max-width:820px}
.phase{display:grid;grid-template-columns:60px 1fr;gap:18px;padding:24px;border:1px solid var(--line);border-radius:var(--r);margin-bottom:14px;background:var(--paper);box-shadow:var(--shadow)}
.phase b{font-family:var(--disp);font-size:30px;font-weight:700;color:var(--red);line-height:1}
.phase h3{font-family:var(--disp);font-size:19px;font-weight:600;margin-bottom:6px}
.phase p{color:var(--steel);font-size:15.5px;max-width:840px}

/* Formular */
input,textarea{border-radius:var(--r-sm) !important}

/* Responsive */
@media(max-width:900px){
  .cards,.projects{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .two-col,.method-grid{grid-template-columns:1fr}
  .strip{grid-template-columns:1fr 1fr}
}
@media(max-width:1089px){
  /* nur die Hauptnavigation umschalten – Landingpage-Kopf (inline style) bleibt unberuehrt */
  .nav-links:not([style]){display:none;position:absolute;top:72px;left:0;right:0;background:var(--paper);flex-direction:column;align-items:flex-start;padding:18px 24px;gap:16px;border-bottom:1px solid var(--line);font-size:15px}
  .nav-links:not([style]).open{display:flex}
  .burger{display:block}
  .nav-links:not([style]) .dropdown{width:100%}
  .nav-links:not([style]) .dropdown>a::after{display:none}
  .nav-links:not([style]) .dropdown-menu{display:block;position:static;border:none;box-shadow:none;border-radius:0;min-width:0;padding:6px 0 2px 14px}
  .nav-links:not([style]) .dropdown-menu a{padding:7px 0;color:var(--steel)}
  .nav-links:not([style]) .btn{margin-top:4px}
}
@media(max-width:640px){
  .nav-links[style]{position:absolute;top:72px;left:0;right:0;background:var(--paper);flex-direction:column;align-items:flex-start;padding:18px 24px;gap:16px;border-bottom:1px solid var(--line)}
  .cards,.projects{grid-template-columns:1fr}
  .hero-inner{padding:80px 0 90px}
  .btn.ghost{margin-left:0;margin-top:10px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .proj .ph img{transition:none}
  .hero video{display:none}
  .hero .hero-img{display:block}
}
:focus-visible{outline:2px solid var(--red);outline-offset:2px}

/* Spalten-Utilities (statt Inline-Styles — Inline überstimmt Media-Queries!) */
.cards.zwei{grid-template-columns:repeat(2,1fr)}
.cards.drei{grid-template-columns:repeat(3,1fr)}
.strip.drei{grid-template-columns:repeat(3,1fr)}
.cards>*,.strip>*{min-width:0}
.card h3{hyphens:auto;overflow-wrap:break-word}
@media(max-width:900px){
  .cards.zwei,.cards.drei{grid-template-columns:1fr 1fr}
  .strip.drei{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .cards.zwei,.cards.drei{grid-template-columns:1fr}
  .strip.drei{grid-template-columns:1fr}
}


/* ---------- Zitierkasten für Fachbeiträge ---------- */
.zitat-box{margin-top:40px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--paper);padding:22px 24px}
.zitat-kopf{display:flex;justify-content:space-between;align-items:center;gap:14px;
  flex-wrap:wrap;margin-bottom:12px}
.zitat-titel{font-family:var(--disp);font-size:15px;font-weight:700;letter-spacing:.01em}
.zitat-btn{font-size:12.5px;font-weight:600;padding:6px 12px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:transparent;color:var(--steel);cursor:pointer;
  font-family:inherit;white-space:nowrap}
.zitat-btn:hover{border-color:var(--red);color:var(--red)}
.zitat-btn:focus-visible{outline:2px solid var(--red);outline-offset:2px}
.zitat-text{font-size:14px;line-height:1.65;color:var(--ink);background:#f4f6f7;
  border:1px solid var(--line);border-radius:var(--r-sm);padding:13px 15px;
  word-break:break-word;font-variant-numeric:tabular-nums}
.zitat-lizenz{font-size:13.5px;line-height:1.6;color:var(--steel);margin-top:14px}
.zitat-lizenz a{color:var(--ink);font-weight:600;border-bottom:2px solid var(--red)}
.zitat-hinweis{font-size:12.5px;line-height:1.55;color:var(--steel);margin-top:12px;
  padding-top:12px;border-top:1px solid var(--line)}
@media(max-width:640px){ .zitat-box{padding:18px 16px} }