/* Singoldwerk – Firmenseite
   Reines CSS, keine externen Ressourcen, keine Webfonts.
   Eigenständiges Design: nüchtern, viel Weißraum, eine Akzentfarbe. */

:root {
  --papier: #faf7f2;
  --papier-dunkel: #f0ebe2;
  --tinte: #1b1d1f;
  --tinte-leise: #5b6066;
  --rahmen: #ddd6c9;
  --akzent: #145c5a;
  --akzent-dunkel: #0c3f3d;
  --akzent-hell: #e4efee;
  --weiss: #ffffff;
  --max: 40rem;
  --max-breit: 54rem;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, ui-serif, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--tinte);
  background: var(--papier);
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.25;
  margin: 0 0 .6em;
  letter-spacing: -.01em;
}
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.125rem; font-family: var(--sans); font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--akzent-dunkel); }
img, svg { max-width: 100%; height: auto; display: block; }

:focus-visible {
  outline: 3px solid var(--akzent);
  outline-offset: 3px;
  border-radius: 3px;
}

.wrap { width: 100%; max-width: var(--max-breit); margin: 0 auto; padding: 0 1.25rem; }
.wrap-eng { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--tinte); color: #fff; padding: .7rem 1rem; z-index: 100;
}
.skip:focus { left: .5rem; top: .5rem; }

section { padding: 3rem 0; border-bottom: 1px solid var(--rahmen); }
section:last-of-type { border-bottom: none; }
.alt { background: var(--papier-dunkel); }
@media (min-width: 48rem) { section { padding: 4.5rem 0; } }

/* --- Kopf --- */
.kopf { padding: 1.5rem 0 0; }
.marke {
  display: inline-flex; align-items: baseline; gap: .5rem;
  text-decoration: none; color: var(--tinte);
}
.marke b { font-family: var(--serif); font-size: 1.375rem; }
.marke span { font-size: .8125rem; color: var(--tinte-leise); }

/* --- Buttons & Links --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.35rem; border-radius: 6px;
  font-weight: 700; font-size: 1rem; text-decoration: none;
  border: 1.5px solid transparent; cursor: pointer; min-height: 48px;
}
.btn-primaer { background: var(--akzent); color: #fff; }
.btn-primaer:hover { background: var(--akzent-dunkel); }
.btn-sekundaer { background: transparent; color: var(--tinte); border-color: var(--tinte); }
.btn-sekundaer:hover { background: var(--tinte); color: #fff; }
.btn svg { width: 1.1rem; height: 1.1rem; flex: 0 0 auto; }

/* --- Hero --- */
.hero { padding-top: 2.5rem; }
.hero .zeile {
  font-size: .875rem; letter-spacing: .04em; text-transform: uppercase;
  color: var(--akzent-dunkel); font-weight: 700; margin-bottom: 1rem;
}
.hero h1 { max-width: 22ch; }
.hero .lead { max-width: 38ch; color: var(--tinte-leise); font-size: 1.125rem; }
.hero-aktionen { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.75rem; }
@media (min-width: 40rem) { .hero h1 { font-size: 2.75rem; } }

/* --- Problem --- */
.probleme { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; }
.probleme li {
  display: flex; gap: .8rem; align-items: flex-start;
  color: var(--tinte-leise); font-size: 1.0625rem;
}
.probleme svg {
  width: 1.35rem; height: 1.35rem; flex: 0 0 auto; margin-top: .15rem;
  color: var(--akzent);
}

/* --- Ablauf --- */
.schritte { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.5rem; }
@media (min-width: 42rem) { .schritte { grid-template-columns: repeat(3, 1fr); } }
.schritt .nr {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; border-radius: 50%;
  border: 1.5px solid var(--akzent); color: var(--akzent-dunkel);
  font-weight: 700; font-family: var(--serif); margin-bottom: .8rem;
}
.schritt p { color: var(--tinte-leise); margin-bottom: 0; }

/* --- Beispiel --- */
.beispiel-karte {
  display: block; text-decoration: none; color: inherit;
  background: var(--weiss); border: 1.5px solid var(--rahmen);
  border-radius: 10px; padding: 1.5rem; transition: border-color .15s;
}
.beispiel-karte:hover { border-color: var(--akzent); }
.beispiel-karte .etikett {
  display: inline-block; font-size: .75rem; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase;
  background: var(--akzent-hell); color: var(--akzent-dunkel);
  padding: .3rem .6rem; border-radius: 999px; margin-bottom: .9rem;
}
.beispiel-karte h3 { margin-bottom: .35rem; }
.beispiel-karte .hinweis { color: var(--tinte-leise); font-size: .9375rem; margin-bottom: 0; }
.beispiel-karte .oeffnen {
  display: inline-flex; align-items: center; gap: .35rem; margin-top: 1rem;
  color: var(--akzent-dunkel); font-weight: 700; font-size: .9375rem;
}
.beispiel-karte .oeffnen svg { width: 1rem; height: 1rem; }

/* --- Preis --- */
.preis-zeile {
  font-size: 1.1875rem; line-height: 1.75; max-width: 42rem;
}
.preis-zeile strong { color: var(--akzent-dunkel); }
.preis-hinweis { color: var(--tinte-leise); font-size: .9375rem; margin-top: 1rem; margin-bottom: 0; }

/* --- Über --- */
.ueber p { max-width: 42rem; font-size: 1.0625rem; }
.ueber p:last-of-type { margin-bottom: 0; }

/* --- Kontakt --- */
.kontakt-lead { color: var(--tinte-leise); max-width: 36rem; }
.kontaktdaten { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; }
.kontaktdaten li { display: flex; gap: .75rem; align-items: flex-start; }
.kontaktdaten svg { width: 1.25rem; height: 1.25rem; color: var(--akzent); flex: 0 0 auto; margin-top: .2rem; }
.kontaktdaten b { display: block; font-size: .8125rem; text-transform: uppercase;
  letter-spacing: .05em; color: var(--tinte-leise); font-weight: 700; }
.kontaktdaten a { font-weight: 700; text-decoration: none; font-size: 1.0625rem; color: var(--tinte); }
.kontaktdaten a:hover { color: var(--akzent-dunkel); }

/* --- Fuß --- */
.fuss { padding: 2rem 0; }
.fuss .wrap-eng, .fuss .wrap {
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem;
  align-items: center; justify-content: space-between;
  font-size: .875rem; color: var(--tinte-leise);
}
.fuss nav { display: flex; gap: 1.25rem; }
.fuss a { color: var(--tinte-leise); text-decoration: none; }
.fuss a:hover { color: var(--akzent-dunkel); text-decoration: underline; }

/* --- Impressum / Datenschutz --- */
.inhalt { padding: 2.5rem 0 3.5rem; }
.inhalt .wrap-eng { max-width: var(--max-breit); }
.inhalt h1 { margin-bottom: 1.5rem; }
.inhalt h2 { font-size: 1.1875rem; margin-top: 2.25rem; }
.inhalt dl { margin: 0 0 1rem; }
.inhalt dt { font-weight: 700; margin-top: .75rem; }
.inhalt dd { margin: 0; color: var(--tinte-leise); }
.inhalt ul { padding-left: 1.25rem; color: var(--tinte-leise); }
.inhalt li { margin-bottom: .4rem; }
.zurueck { display: inline-block; margin-top: 2rem; font-weight: 700; text-decoration: none; }