/* ISD Immobilienservice Danne – Gestaltung der Website (V1)
   Eine Datei, keine externen Schriften oder Bibliotheken. */

:root {
  --weiss: #ffffff;
  --hell: #f5f4f0;          /* ruhiger, warmer Hintergrund */
  --text: #1f1c23;
  --text-leise: #5c5963;
  --dunkel: #2f2739;        /* Aubergine der bisherigen Website */
  --akzent: #c8a47e;        /* Sandton der bisherigen Website */
  --akzent-dunkel: #8a6a45; /* Sandton mit ausreichendem Kontrast für Text */
  --linie: #e2dfd8;
  --breite: 1120px;
  --schrift: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: auto; }

body {
  margin: 0;
  font-family: var(--schrift);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--weiss);
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3 { line-height: 1.2; font-weight: 600; margin: 0 0 0.6em; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
ul { margin: 0 0 1em; padding-left: 1.2em; }
address { font-style: normal; }

a { color: inherit; text-decoration-color: var(--akzent); text-decoration-thickness: 2px; text-underline-offset: 0.2em; }
a:hover { color: var(--akzent-dunkel); }
a:focus-visible { outline: 3px solid var(--akzent); outline-offset: 3px; border-radius: 2px; }

.container { max-width: var(--breite); margin: 0 auto; padding: 0 24px; }
.schmal { max-width: 800px; }

.skip-link { position: absolute; left: -9999px; top: 0; background: var(--dunkel); color: var(--weiss); padding: 10px 16px; z-index: 10; }
.skip-link:focus { left: 0; }

/* Kopfbereich */
.site-header { border-bottom: 1px solid var(--linie); background: var(--weiss); }
.header-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 32px; padding-top: 18px; padding-bottom: 18px; }
.logo img { width: 260px; }
.main-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 28px; margin: 0; padding: 0; }
.main-nav a { display: inline-block; padding: 6px 0; text-decoration: none; font-weight: 500; border-bottom: 2px solid transparent; }
.main-nav a:hover { color: var(--text); border-bottom-color: var(--akzent); }
.main-nav a[aria-current="page"] { border-bottom-color: var(--dunkel); }

/* Wiederkehrende Bausteine */
.eyebrow { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--akzent-dunkel); margin-bottom: 0.9em; }
.lead { font-size: 1.2rem; color: var(--text-leise); max-width: 40em; }
.section { padding: 52px 0; }
.section-soft { background: var(--hell); }
.seitenkopf { padding: 48px 0 8px; }
.seitenkopf + .section { padding-top: 32px; }

.button { display: inline-block; padding: 12px 22px; background: var(--dunkel); color: var(--weiss); text-decoration: none; font-weight: 600; border: 2px solid var(--dunkel); border-radius: 3px; }
.button:hover { background: var(--text); border-color: var(--text); color: var(--weiss); }
.button-outline { background: transparent; color: var(--dunkel); }
.button-outline:hover { background: var(--dunkel); color: var(--weiss); }
.button-light { background: var(--weiss); color: var(--dunkel); border-color: var(--weiss); }
.button-light:hover { background: var(--akzent); border-color: var(--akzent); color: var(--dunkel); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.8em; }

.mehr { font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--akzent); padding-bottom: 2px; }
.mehr::after { content: " \2192"; }
.abschluss { margin-top: 40px; }

/* Startseite: Einleitung */
.hero { padding: 48px 0 52px; }
.hero-grid { display: grid; grid-template-columns: 5fr 6fr; gap: 56px; align-items: center; }
.hero-bild { margin: 0; }
.hero-bild img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 3px; }
figcaption { font-size: 0.85rem; color: var(--text-leise); margin-top: 8px; }

/* Karten */
.karten { display: grid; gap: 28px; margin-top: 40px; }
.karten-4 { grid-template-columns: repeat(4, 1fr); }
.karten-3 { grid-template-columns: repeat(3, 1fr); gap: 36px; }
.karten-2 { grid-template-columns: repeat(2, 1fr); gap: 36px; }
.karte { border-top: 3px solid var(--akzent); padding-top: 20px; display: flex; flex-direction: column; align-items: flex-start; }
.karte p { color: var(--text-leise); font-size: 1rem; flex: 1; }
.projekt img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 3px; margin-bottom: 18px; }
.projekt p { color: var(--text-leise); font-size: 1rem; margin-bottom: 0; }
.projekt-art { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--akzent-dunkel) !important; margin-bottom: 0.5em !important; }

.schlagworte { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0; }
.schlagworte li { background: var(--weiss); border: 1px solid var(--linie); padding: 8px 16px; border-radius: 999px; font-size: 0.98rem; }

/* Person / Über ISD */
.person { display: grid; grid-template-columns: 240px 1fr; gap: 56px; align-items: center; }
.person-gross { align-items: start; }
.person-gross h2 { font-size: 1.35rem; margin-top: 1.8em; }
.portrait { width: 100%; max-width: 240px; border-radius: 3px; }
.portrait-figur { margin: 0; }

/* Zweispaltige Abschnitte (Leistungen) */
.zweispaltig { display: grid; grid-template-columns: 4fr 7fr; gap: 56px; align-items: start; }
.zweispaltig-bild { grid-template-columns: 5fr 6fr; align-items: center; }
.zweispaltig-bild img { border-radius: 3px; }
.zweispaltig h3 { margin-top: 1.8em; }
.zweispaltig > div > h3:first-child, .gruppe h3 { margin-top: 0; }
.liste { padding-left: 0; list-style: none; }
.liste li { position: relative; padding: 9px 0 9px 26px; border-bottom: 1px solid var(--linie); }
.liste li::before { content: ""; position: absolute; left: 2px; top: 1.3em; width: 10px; height: 2px; background: var(--akzent); }
.gruppen { display: grid; gap: 32px; }
.gruppe { background: var(--weiss); padding: 28px; border-radius: 3px; }
.gruppe .liste { margin-bottom: 0; }
.gruppe .liste li:last-child { border-bottom: 0; }
.sprungmarken { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 28px; }
.sprungmarken a { font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--akzent); }

.galerie { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 56px; }
.galerie figure { margin: 0; }
.galerie img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 3px; }

/* Referenzen */
.referenzen { display: grid; gap: 88px; }
.referenz { display: grid; grid-template-columns: 6fr 5fr; gap: 48px; align-items: center; }
.referenz:nth-child(even) img { order: 2; }
.referenz img { width: 100%; border-radius: 3px; }
.referenz h2 { margin-bottom: 0.9em; }
.fakten { margin: 0; }
.fakten > div { display: grid; grid-template-columns: 8.5em 1fr; gap: 16px; padding: 14px 0; border-top: 1px solid var(--linie); }
.fakten dt { font-weight: 600; font-size: 1.15rem; white-space: nowrap; }
.fakten dd { margin: 0; color: var(--text-leise); }

/* Kontakt */
.band { background: var(--dunkel); color: var(--weiss); padding: 64px 0; }
.band-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px 48px; }
.band h2 { margin-bottom: 0.3em; }
.band p { margin: 0; }
.band-links { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; }
.band a:not(.button) { color: var(--weiss); font-weight: 600; }
.band a:not(.button):hover { color: var(--akzent); }
.kontakt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.kontakt-block { border-top: 3px solid var(--akzent); padding-top: 20px; }
.kontakt-block h2 { font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--akzent-dunkel); margin-bottom: 0.6em; }
.kontakt-block p + h2 { margin-top: 1.6em; }
.kontakt-block p, .kontakt-block address { font-size: 1.15rem; overflow-wrap: anywhere; }
.kontakt-link { font-weight: 600; }

/* Rechtstexte */
.rechtstext h2 { font-size: 1.3rem; margin-top: 2em; }
.rechtstext a { overflow-wrap: anywhere; }
.quelle { margin-top: 2.5em; font-size: 0.9rem; color: var(--text-leise); }
.pruefpunkt { display: block; background: #fff7e0; border: 2px dashed #c79a2b; padding: 14px 18px; margin: 0 0 1.5em; font-size: 0.95rem; border-radius: 3px; overflow-wrap: anywhere; }

/* Fußbereich */
.site-footer { background: var(--text); color: #d9d6de; padding: 56px 0; font-size: 0.98rem; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1.3fr 1fr; gap: 40px; }
.footer-name, .footer-title { color: var(--weiss); font-weight: 600; margin-bottom: 0.6em; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { padding: 2px 0; }
.site-footer a { color: inherit; text-decoration-thickness: 1px; overflow-wrap: anywhere; }
.site-footer a:hover { color: var(--akzent); }

/* Tablet */
@media (max-width: 960px) {
  .karten-4 { grid-template-columns: repeat(2, 1fr); }
  .hero-grid, .zweispaltig, .zweispaltig-bild, .referenz { grid-template-columns: 1fr; gap: 32px; }
  .referenz:nth-child(even) img { order: 0; }
  .galerie { grid-template-columns: repeat(2, 1fr); }
  .referenzen { gap: 64px; }
}

/* Smartphone */
@media (max-width: 680px) {
  body { font-size: 1rem; }
  h1, h2, h3 { hyphens: auto; overflow-wrap: break-word; }
  .section { padding: 36px 0; }
  .hero { padding: 28px 0 36px; }
  .seitenkopf { padding-top: 30px; }
  .header-inner { padding-top: 14px; padding-bottom: 10px; }
  .logo img { width: 210px; }
  .main-nav { width: 100%; }
  .main-nav ul { gap: 2px 12px; justify-content: space-between; }
  .main-nav a { font-size: 0.94rem; }
  .karten-4, .karten-3, .karten-2, .kontakt-grid, .footer-grid { grid-template-columns: 1fr; }
  .person { grid-template-columns: 1fr; gap: 28px; }
  .portrait { max-width: 180px; }
  .fakten > div { grid-template-columns: 1fr; gap: 2px; }
  .gruppe { padding: 22px; }
  .lead { font-size: 1.1rem; }
}

@media print {
  .site-header nav, .band, .skip-link { display: none; }
}