:root {
  --main-color: #222;
  --accent-color: #005fa3;
  --bg-light: #f9f9f9;
  --font-base: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-base);
  line-height: 1.7;
  color: var(--main-color);
  background-color: #fff;
  font-size: 1.1rem; /* Schrift insgesamt größer */
}

header {
  text-align: center;
  padding: 1rem 0 0.5rem;
  background-color: var(--bg-light);
}

header img {
  width: 490px;
  height: auto;
  margin: 0.3rem 0;
  max-width: 100%;
}

header h1 {
  font-size: 2rem;
  margin: 0.4rem 0 0.8rem;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem;
}

h2 {
  font-size: 1.5rem;
  margin-top: 1.4rem;
  border-bottom: 2px solid red;
  padding-bottom: 0.3rem;
}

a {
  color: var(--accent-color);
  text-decoration: underline;
}

a:focus,
a:hover {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

footer {
  background: var(--bg-light);
  text-align: center;
  padding: 1rem;
  font-size: 1rem;
  color: #555;
}

:focus {
  outline: 3px solid #005fa3;
  outline-offset: 2px;
}

p {
  margin-bottom: 1rem;
}

.form-card {
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  padding: 1.25rem;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .03);
}

.form-grid {
  display: grid;
  gap: 1rem;
}

label {
  font-weight: bold;
  display: inline-block;
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="url"],
input[type="email"],
textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font: inherit;
}

textarea {
  min-height: 160px;
  resize: vertical;
}

.hint {
  font-size: 0.95rem;
  color: #555;
  margin: 0.3rem 0 0.2rem;
}

.actions {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  border: 0;
  background: var(--accent-color);
  color: #fff;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
}

.btn:focus {
  outline: 3px solid #003c66;
  outline-offset: 2px;
}

.btn.secondary {
  background: #666;
}

.small {
  font-size: 0.9rem;
  color: #666;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;