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

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 var(--space-sm); }

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover { color: var(--color-accent); }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

main { display: block; min-height: 60vh; }

section { padding: var(--space-xl) 0; }
section.alt { background: var(--color-bg-alt); }

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}
.site-header.header-hidden { transform: translateY(-100%); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo { display: flex; align-items: center; }
.logo img { height: 68px; width: auto; display: block; }

.header-nav-group {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.main-nav {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--color-text);
  font-size: 0.95rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
}
.main-nav a:hover { color: var(--color-accent); }
.main-nav a.active {
  background: rgba(112, 173, 71, 0.15);
  color: var(--color-primary);
  font-weight: 700;
}

/* Hamburger-Menü-Button - nur am Handy/Tablet sichtbar (siehe Media Query unten) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  flex: 0 0 auto;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: #fff;
  margin-top: var(--space-xl);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-md);
}
.footer-columns h4 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.footer-columns ul { list-style: none; margin: 0; padding: 0; }
.footer-columns li { margin-bottom: 0.4rem; }
.footer-columns a { color: rgba(255,255,255,0.8); }
.footer-columns a:hover { color: var(--color-bg-alt); }
.footer-columns address {
  font-style: normal;
  color: rgba(255,255,255,0.8);
  line-height: 1.8;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: var(--space-sm);
}
.social-links a {
  color: rgba(255,255,255,0.8);
  display: inline-flex;
}
.social-links a:hover { color: var(--color-bg-alt); }
.social-links svg { width: 20px; height: 20px; }

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  padding-bottom: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.15);
}

.footer-inner p { margin: 0; color: rgba(255,255,255,0.8); }

.footer-nav { display: flex; flex-wrap: wrap; gap: var(--space-sm) var(--space-md); }
.footer-nav a { color: #fff; }
.footer-nav a:hover { color: var(--color-bg-alt); }

/* Utilities */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }

.grid {
  display: grid;
  gap: var(--space-md);
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

@media (max-width: 960px) {
  .nav-toggle { display: flex; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-hover);
    padding: var(--space-sm) var(--space-md) var(--space-md);
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 0.75rem var(--space-sm); border-radius: var(--radius); }
}

@media (max-width: 640px) {
  h1 { font-size: 2rem; }
}