/* Grundfarben */
:root {
  --primary: #001938;
  --accent: #ffd100;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --radius: 0.5rem;
}

/* Allgemein */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--primary);
  background: var(--bg);
  line-height: 1.6;
}

/* Layout-Helfer */
.container {
  width: 90%;
  max-width: 1100px;
  margin-inline: auto;
}
.flex {
  display: flex;
}
.between {
  justify-content: space-between;
}
.center {
  align-items: center;
}

/* Header & Navigation */
.site-header {
  background: var(--bg-alt);
  border-bottom: 1px solid #e1e5eb;
  position: sticky;
  top: 0;
  z-index: 1000;
}
.logo {
  height: 64px;
  width: auto;
}
.menu-toggle {
  background: none;
  border: none;
  display: none; /* wird bei mobilen Geräten sichtbar */
}
.menu-toggle img { width: 32px; height: 32px; }
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}
.main-nav li { margin-inline: 1rem; }
.main-nav a {
  text-decoration: none;
  color: var(--primary);
  font-weight: 600;
}
.main-nav a:hover,
.main-nav a:focus {
  color: var(--accent);
}
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    flex-direction: column;
    display: none;
  }
  .main-nav.open { display: flex; }
  .main-nav ul { flex-direction: column; }
  .main-nav li { margin: 0; border-bottom: 1px solid #e1e5eb; }
  .main-nav a { padding: 1rem; display: block; }
}

/* Hero */
.hero {
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  color: var(--accent);
  text-shadow: 1px 1px 2px var(--primary);
  text-align: center;
  background: linear-gradient(
    rgba(0, 0, 0, 0.5), 
    rgba(0, 0, 0, 0.5)
  ), url('images/background.png') center/cover no-repeat;
}
.hero h1 {
  font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
  margin-bottom: 0.5rem;
}
.hero p { font-size: 1.25rem; }

/* Sektionen */
section { padding-block: 3rem; }
section h2 { font-size: 2rem; margin-bottom: 1rem; }

/* Formular */
form {
  max-width: 600px;
  margin-inline: auto;
  display: grid;
  gap: 1rem;
}
.feedback-input,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #ccd3db;
  border-radius: var(--radius);
  font-family: inherit;
}
[type="submit"] {
  background: var(--accent);
  border: 0;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--radius);
  transition: transform 0.2s ease;
}
[type="submit"]:hover { transform: scale(1.05); }

/* Footer */
.site-footer {
  background: var(--bg-alt);
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.875rem;
}