/* ENBERO – Energieberatung Rosenmüller
   Stil „Weiß“: ruhig, viel Weißraum, angelehnt an apple.com */

@font-face{
  font-family:"Inter";
  src:url("fonts/inter-latin-wght-normal.woff2") format("woff2");
  font-weight:100 900;
  font-style:normal;
  font-display:swap;
}

:root{
  --white:#ffffff;
  --grey:#f5f5f7;
  --line:#d2d2d7;
  --text:#1d1d1f;
  --text-2:#424245;
  --muted:#6e6e73;
  --muted-2:#86868b;
  --blue:#00447c;
  --blue-hover:#00396a;
  --content:980px;
  --nav-h:64px;
  --font:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{margin:0;background:var(--white);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.47;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{display:block;max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0;text-wrap:balance}
p{margin:0}
.wrap{width:100%;max-width:calc(var(--content) + 48px);margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px;top:8px;z-index:20;background:var(--white);padding:8px 14px;border-radius:8px}
.skip:focus{left:16px}

/* ---------- Kopfzeile ---------- */
.nav{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.97);transform:translateZ(0);border-bottom:1px solid rgba(0,0,0,.08)}
.nav .wrap{height:var(--nav-h);display:flex;align-items:center;gap:28px}
.nav .logo{display:block;flex:none}
.nav .logo img{height:44px;width:auto}
.nav ul{list-style:none;margin:0 0 0 auto;padding:0;display:flex;gap:32px}
.nav ul a{color:var(--text-2);font-size:17px;font-weight:500}
.nav ul a:hover{color:var(--text);text-decoration:none}
.pill{display:inline-flex;align-items:center;justify-content:center;border-radius:980px;background:var(--blue);color:#fff;font-weight:500;white-space:nowrap;transition:background .2s}
.pill:hover{background:var(--blue-hover);text-decoration:none}
.nav .pill{padding:8px 17px;font-size:15px}
.nav .pill-call{display:none}
.menu-btn{display:none;width:40px;height:40px;margin-right:-10px;border:0;background:none;color:var(--text);cursor:pointer;position:relative}
.menu-btn span,.menu-btn::before,.menu-btn::after{content:"";position:absolute;left:11px;right:11px;height:1.5px;background:currentColor;border-radius:2px;transition:transform .25s,opacity .25s}
.menu-btn::before{top:15px}.menu-btn::after{bottom:15px}
.menu-btn span{top:50%;opacity:0}
.nav.open .menu-btn::before{transform:translateY(4.25px) rotate(45deg)}
.nav.open .menu-btn::after{transform:translateY(-4.25px) rotate(-45deg)}

/* ---------- Bausteine ---------- */
.eyebrow{font-size:17px;font-weight:600;color:var(--blue)}
.more{font-size:17px;color:var(--blue)}
.more::after{content:"\00a0›"}
.section{padding:100px 0}
.section-grey{background:var(--grey)}
.h2{font-size:clamp(32px,5vw,56px);font-weight:700;letter-spacing:-.03em;line-height:1.07}
.h2 span{color:var(--muted-2)}

/* ---------- Hero ---------- */
.hero{text-align:center;padding:88px 0 100px}
.hero .wrap{display:grid;justify-items:center;gap:18px}
.hero h1{font-size:clamp(44px,8.4vw,84px);font-weight:700;letter-spacing:-.035em;line-height:1.04}
.hero h1 .eyebrow{display:block;margin-bottom:18px;font-size:17px;letter-spacing:normal;line-height:1.47}
.hero .sub{font-size:clamp(19px,2.4vw,24px);line-height:1.38;color:var(--muted);max-width:640px}
.cta{display:flex;gap:24px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:10px}
.cta .pill{padding:12px 22px;font-size:17px}
/* Schatten für Mouse-over: fertig gezeichnet, nur die Deckkraft wird animiert (ruckelfrei) */
.tile::after,.b::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:0 0 0 1px rgba(0,0,0,.05),0 14px 36px rgba(0,0,0,.08);opacity:0;transition:opacity .35s;pointer-events:none}
.house-tile::after,.b-source::after{display:none}

/* ---------- Einsparpotenziale: Kachelraster (Bento) im Stil von apple.com ---------- */
.potential .head{text-align:center;margin-bottom:44px;display:grid;gap:10px;justify-items:center}
.potential .head p{color:var(--muted);font-size:19px;max-width:560px}
.bento{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.b{position:relative;background:#fff;border-radius:24px;padding:26px 26px 28px;display:grid;gap:6px;align-content:start;transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.b .k{font-size:13px;font-weight:600;color:var(--muted)}
.b .n{white-space:nowrap;font-size:clamp(40px,5vw,52px);font-weight:700;letter-spacing:-.035em;line-height:1.05;margin-top:6px;background:linear-gradient(120deg,var(--c1),var(--c2));-webkit-background-clip:text;background-clip:text;color:transparent}
.b h3{font-size:19px;font-weight:600;letter-spacing:-.01em;line-height:1.25;margin-top:4px}
.b small{font-size:14px;color:var(--muted);line-height:1.4}
.house-tile{background:#1d1d1f;color:#f5f5f7;place-items:center;align-content:center;text-align:center;gap:14px;padding:30px 24px}
.house-tile svg{width:min(150px,70%);height:auto}
.house-tile h3{font-size:21px;color:#f5f5f7}
.house-tile small{color:#a1a1a6}
.b-source{background:transparent;padding:10px 6px;align-content:end;color:var(--muted);font-size:13px;line-height:1.45}
.b-cta{background:linear-gradient(160deg,#1a6bb5,#00447c);color:#fff;align-content:space-between}
.b-cta h3{color:#fff;font-size:21px}
.b-cta a{color:#fff;font-weight:500;font-size:17px}
.b-cta a::after{content:"\00a0›"}

/* ---------- Leistungen ---------- */
.section-head{margin-bottom:48px;max-width:780px}
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tile{background:var(--grey);border-radius:28px;padding:36px 30px 34px;display:grid;gap:12px;align-content:start;position:relative;transition:transform .35s cubic-bezier(.2,.7,.2,1),background-color .35s}
.tile .bar{width:44px;height:6px;border-radius:3px;background:var(--c)}
.tile .k{font-size:14px;font-weight:600;color:var(--muted);margin-top:6px}
.tile h3{font-size:26px;font-weight:700;letter-spacing:-.02em;line-height:1.15;hyphens:manual;-webkit-hyphens:manual}
.tile p{color:var(--text-2);font-size:17px;line-height:1.5}

.further{margin-top:64px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px}
.further h3{font-size:24px;font-weight:700;letter-spacing:-.015em;line-height:1.2}
.further ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;column-gap:48px}
.further li{border-top:1px solid var(--line);padding:18px 0 20px;display:grid;gap:4px;align-content:start;position:relative;isolation:isolate}
.further li::before{content:"";position:absolute;inset:6px -14px 4px;border-radius:14px;background:var(--grey);opacity:0;z-index:-1;transition:opacity .25s}
.further b{transition:color .25s}
.further li{grid-template-columns:44px minmax(0,1fr);column-gap:18px}
.further b,.further span{grid-column:2}
/* Symbole im Stil von iOS: weißes Zeichen auf farbiger, abgerundeter Kachel */
.further .ic{grid-row:1 / span 2;width:44px;height:44px;border-radius:11px;background:linear-gradient(180deg,var(--c1),var(--c2));box-shadow:inset 0 0 0 .5px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.08);display:grid;place-items:center;transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.further .ic svg{width:30px;height:30px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.further .ic .f{fill:#fff;stroke:none}
.further b{font-size:17px;font-weight:600}
.further span{color:var(--muted);font-size:15px;line-height:1.45}

@media (hover:hover){
  .b:not(.house-tile):not(.b-source):hover{transform:translateY(-4px)}
  .b:hover::after,.tile:hover::after{opacity:1}
  .tile:hover{transform:translateY(-4px);background:#fff}
  .further li:hover::before{opacity:1}
  .further li:hover b{color:var(--blue)}
  .further li:hover .ic{transform:scale(1.06)}
  .partners img:hover{transform:translateY(-3px) scale(1.06)}
}

/* ---------- Über uns ---------- */
.person{text-align:center}
.person .wrap{display:grid;justify-items:center;gap:20px}
.person .lead{font-size:clamp(19px,2.4vw,24px);line-height:1.4;color:var(--text-2);max-width:640px}
.chips{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;list-style:none;margin:6px 0 0;padding:0}
.chips li{background:var(--white);border-radius:980px;padding:8px 16px;font-size:15px;font-weight:500}

/* ---------- Partner ---------- */
.partners{padding:56px 0;border-bottom:1px solid #e8e8ed}
.partners ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:28px 56px}
.partners img{height:64px;width:auto;transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.partners .kfw img{height:72px}

/* ---------- Kontakt ---------- */
.contact{text-align:center}
.contact .wrap{display:grid;justify-items:center;gap:18px}
.contact .eyebrow{color:var(--muted)}
.tel{font-size:clamp(36px,6.4vw,64px);font-weight:700;letter-spacing:-.03em;line-height:1.1;color:var(--text)}
.tel:hover{text-decoration:none;color:var(--blue)}
.address{color:var(--muted);font-size:15px;font-style:normal;margin-top:8px}

/* ---------- Fußzeile ---------- */
.footer{background:var(--grey);color:var(--muted);font-size:12px;border-top:1px solid var(--line)}
.footer .wrap{padding-top:20px;padding-bottom:22px;display:flex;gap:12px 24px;flex-wrap:wrap;align-items:center}
.footer nav{margin-left:auto;display:flex;gap:20px}
.footer a{color:var(--text-2)}

/* ---------- Rechtstexte ---------- */
.legal{padding:72px 0 100px}
.legal .wrap{max-width:calc(720px + 48px)}
.legal h1{font-size:clamp(30px,5vw,48px);hyphens:auto;-webkit-hyphens:auto;overflow-wrap:break-word;font-weight:700;letter-spacing:-.03em;line-height:1.08;margin-bottom:28px}
.legal h2{font-size:21px;font-weight:600;letter-spacing:-.01em;margin:36px 0 10px}
.legal p,.legal li{color:var(--text-2)}
.legal p+p{margin-top:12px}
.legal ul{margin:10px 0 12px;padding-left:22px}
.legal .notice{background:var(--grey);border-radius:16px;padding:18px 20px}
.legal .notice strong{color:var(--text);font-weight:600}
.legal .back{margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}

/* ---------- Tablet / Handy ---------- */
@media (max-width:900px){
  .tiles{grid-template-columns:1fr}
  .tile{padding:30px 26px}
  .further{grid-template-columns:1fr;gap:6px}
}
@media (max-width:760px){
  :root{--nav-h:56px}
  .nav .wrap{gap:12px}
  .nav .logo img{height:32px}
  .nav ul{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;margin:0;padding:8px 20px 18px;background:#fff;box-shadow:0 12px 24px rgba(0,0,0,.06);border-bottom:1px solid rgba(0,0,0,.08)}
  .nav.open ul{display:flex}
  .nav ul a{display:block;padding:12px 0;font-size:24px;font-weight:600;color:var(--text);letter-spacing:-.015em}
  .nav .pill-mail{display:none}
  .nav .pill-call{display:inline-flex;margin-left:auto}
  .nav .pill{padding:6px 14px;font-size:14px}
  .menu-btn{display:block}
  .wrap{padding:0 20px}
  .section{padding:72px 0}
  .hero{padding:56px 0 72px}
  .cta{flex-direction:column;gap:16px}
  .bento{grid-template-columns:1fr 1fr;gap:12px}
  .house-tile,.b-cta,.b-source{grid-column:1 / -1}
  .house-tile{order:-1}
  .b-cta{order:9}
  .b-source{order:10;padding:4px 4px 0}
  .b{padding:20px 18px 22px;border-radius:20px}
  .b .n{font-size:30px}
  .b h3{font-size:16px}
  .b small{font-size:13px}
  .section-head{margin-bottom:32px}
  .further ul{grid-template-columns:1fr}
  .partners ul{gap:24px 32px}
  .partners img{height:48px}
  .partners .kfw img{height:56px}
  .footer nav{margin-left:0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .tile,.b,.tile::after,.b::after,.further li::before,.partners img{transition:none}
}