* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* =========================
   Farben
========================= */

:root {
  --bg: #eef2f7;
  --white: #ffffff;

  --nav: #1e293b;
  --nav-hover: #334155;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;

  --text: #1e293b;
  --text-light: #64748b;

  --border: #dbe4ee;
}

/* =========================
   Body
========================= */

body {
  font-family: "Segoe UI", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
}

/* =========================
   Header
========================= */

header {

  background-color: var(--nav);

  padding: 14px 40px;

  border-bottom: 1px solid rgba(255,255,255,0.08);

  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}

/* =========================
   Logo / Bild
========================= */

header img {

  width: 70px;
  height: 70px;

  object-fit: cover;

  border-radius: 14px;

  background-color: white;

  padding: 4px;
}

/* =========================
   Navigation
========================= */

nav {

  background-color: var(--nav);

  padding: 16px 40px;

  border-top: 1px solid rgba(255,255,255,0.05);
}

nav a {

  text-decoration: none;

  color: #f1f5f9;

  font-weight: 600;

  margin-right: 18px;

  padding: 10px 18px;

  border-radius: 10px;

  transition: 0.3s ease;
}

nav a:hover {

  background-color: var(--nav-hover);

  color: white;
}

/* =========================
   Suchfeld
========================= */

input[type="text"],
input[type="search"] {

  padding: 11px 16px;

  border-radius: 12px;

  border: 1px solid var(--border);

  background-color: white;

  font-size: 1rem;
}

input:focus {

  outline: none;

  border-color: var(--primary);
}

/* =========================
   Buttons
========================= */

button {

  background-color: var(--primary);

  color: white;

  border: none;

  padding: 11px 22px;

  border-radius: 12px;

  font-size: 1rem;

  font-weight: 600;

  cursor: pointer;

  transition: 0.3s ease;
}

button:hover {

  background-color: var(--primary-hover);
}

/* =========================
   Hauptinhalt
========================= */

main {

  background-color: var(--white);

  margin: 40px;

  padding: 50px;

  border-radius: 24px;

  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}

/* =========================
   Überschriften
========================= */

h1 {

  color: var(--primary);

  font-size: 3.5rem;

  margin-bottom: 30px;
}

h2 {

  color: var(--primary);

  margin-bottom: 12px;
}

/* =========================
   Texte
========================= */

p {

  color: var(--text-light);

  line-height: 1.8;

  margin-bottom: 25px;

  font-size: 1.08rem;
}

/* =========================
   Links
========================= */

a {

  color: var(--primary);

  transition: 0.3s ease;
}

a:hover {

  color: var(--primary-hover);
}

/* =========================
   Footer
========================= */

footer {

  margin-top: 50px;

  background-color: var(--white);

  border-top: 1px solid var(--border);

  padding: 30px;

  text-align: center;
}

footer a {

  text-decoration: none;

  margin: 0 14px;

  color: var(--text-light);

  font-weight: 500;
}

footer a:hover {

  color: var(--primary);
}