/* Lüneburger Heizmichel – Website-Stil
   Farben wie im Logo: Dunkelgrau #25292D, Grau #9AA0A6, Weiß.
   Bewusst nur Systemschriften (Arial / Arial Black) – keine externen Schriften, keine Cookies. */
:root{
  --dark:#25292D; --dark2:#2E3237; --grey:#9AA0A6; --grey-l:#C9CDD1; --line:#D5D8DB;
  --bg:#FFFFFF; --bg2:#F3F3F2; --text:#25292D; --muted:#5A6067;
  --black:'Arial Black','Arial Bold',Arial,sans-serif; --sans:Arial,Helvetica,sans-serif;
  --max:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--bg);font-size:17px;line-height:1.6}
a{color:inherit}
img{display:block;max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.kick{font-size:13px;letter-spacing:.32em;text-transform:uppercase;color:var(--grey)}
h1,h2,h3{font-family:var(--black);font-weight:900;line-height:1.05;letter-spacing:-.01em}
h1{font-size:clamp(40px,7vw,78px)}
h2{font-size:clamp(30px,4.4vw,46px)}
h3{font-size:20px;letter-spacing:0}
em{font-style:normal;color:var(--grey)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:6px;font-weight:700;text-decoration:none;font-size:16px;border:2px solid transparent;transition:background .15s,color .15s,border-color .15s}
.btn svg{width:20px;height:20px;flex:none}
.btn-light{background:#fff;color:var(--dark)}
.btn-light:hover{background:var(--grey-l)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{border-color:#fff}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:#000}

/* Kopfzeile */
header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.head{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.head .logo img{height:46px;width:auto}
nav{display:flex;align-items:center;gap:26px;font-size:15px}
nav a{text-decoration:none;color:var(--muted)}
nav a:hover{color:var(--text)}
.head .btn{padding:10px 16px;font-size:15px}
@media (max-width:860px){nav .nl{display:none}.head{height:66px}.head .logo img{height:36px}}
@media (max-width:420px){.head .btn span{display:none}.head .btn{padding:10px 12px}}

/* Startbereich */
.hero{background:var(--dark);color:#fff;position:relative;overflow:hidden}
.hero .wrap{padding-top:96px;padding-bottom:100px;position:relative;z-index:1}
.hero .drop{position:absolute;right:-60px;top:50%;transform:translateY(-50%);width:min(52vw,560px);opacity:.09;z-index:0}
.hero h1{margin:18px 0 24px;max-width:760px}
.hero p.lead{font-size:20px;color:var(--grey-l);max-width:560px;margin-bottom:36px}
.hero .actions{display:flex;flex-wrap:wrap;gap:14px}
.hero .tags{margin-top:44px;display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;letter-spacing:.24em;color:var(--grey)}

/* Notdienst-Band */
.emergency{background:var(--bg2);border-bottom:1px solid var(--line)}
.emergency .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:26px;padding-bottom:26px}
.emergency strong{font-family:var(--black);font-size:clamp(24px,3.4vw,34px);text-decoration:none;white-space:nowrap}
.emergency a{text-decoration:none}

/* Abschnitte */
section.block{padding:96px 0}
section.block.alt{background:var(--bg2)}
.head2{margin-bottom:48px;max-width:680px}
.head2 h2{margin:12px 0 16px}
.head2 p{color:var(--muted);font-size:18px}

/* Leistungen */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.grid{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px}
.card svg{width:34px;height:34px;color:var(--dark);margin-bottom:18px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:16px}

/* Wartung */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:36px}}
.checks{list-style:none;display:grid;gap:14px;margin:26px 0 34px}
.checks li{display:flex;gap:12px;align-items:flex-start}
.checks li::before{content:"";flex:none;width:10px;height:10px;margin-top:9px;background:var(--grey)}
.price{background:var(--dark);color:#fff;border-radius:12px;padding:40px}
.price .kick{color:var(--grey)}
.price .amount{font-family:var(--black);font-size:64px;line-height:1;margin:14px 0 6px}
.price p{color:var(--grey-l);font-size:15px}
.price .btn{margin-top:26px}

/* Über uns */
.about{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:center}
@media (max-width:860px){.about{grid-template-columns:1fr;gap:28px}}
.about .icon{background:var(--dark);border-radius:12px;padding:56px;display:flex;justify-content:center}
.about .icon img{width:min(220px,60%)}
.about p{color:var(--muted);margin-bottom:16px}

/* Kontakt */
.contact{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:900px){.contact{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.contact{grid-template-columns:1fr}}
.contact .card a{text-decoration:none;font-weight:700;word-break:break-word}
.contact .card .kick{display:block;margin-bottom:10px}
.hours{margin-top:20px;color:var(--muted);font-size:15px}

/* Fußzeile */
footer{background:var(--dark);color:var(--grey-l);padding:56px 0 40px;font-size:15px}
footer .row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:28px;align-items:flex-start}
footer img{height:56px;width:auto}
footer a{color:var(--grey-l)}
footer .legal{margin-top:36px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:22px;font-size:14px;color:var(--grey)}

/* Rechtstexte */
.legaltext{padding:72px 0 96px;max-width:780px}
.legaltext h1{font-size:clamp(34px,5vw,52px);margin-bottom:28px}
.legaltext h2{font-size:22px;margin:32px 0 10px;letter-spacing:0}
.legaltext p{color:var(--muted);margin-bottom:12px}
.todo{background:#FFF6D6;border:1px solid #E8D58A;color:#5C4A00;border-radius:8px;padding:16px 18px;margin-bottom:28px;font-size:15px}