:root {
  --blau: #1e3a8a;
  --tuerkis: #22d3ee;
  --pink: #ec4899;
  --gelbgruen: #a3e635;
  --dunkel: #0f172a;
  --hell: #f8fafc;
}

* {
  margin: 0; padding: 0; box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  background: linear-gradient(140deg, var(--dunkel) 20%, var(--blau) 100%);
  color: var(--hell);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  padding: 2rem;
}

h1, h2 {
  text-align: center;
  background: linear-gradient(90deg, var(--tuerkis), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}

form {
  background: rgba(255,255,255,0.05);
  padding: 2rem;
  border-radius: 16px;
  max-width: 500px;
  margin: 0 auto;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
}

input[type="file"] {
  margin-bottom: 1rem;
  color: var(--hell);
}

button {
  padding: 0.7rem 1.4rem;
  border: none;
  background: linear-gradient(90deg, var(--pink), var(--tuerkis));
  color: var(--dunkel);
  border-radius: 50px;
  font-weight: bold;
  cursor: pointer;
}

.gallery {
  text-align: center;
}

img {
  max-width: 90%;
  max-height: 80vh;
  margin: 2rem auto;
  display: block;
  border-radius: 16px;
  box-shadow: 0 0 30px rgba(0,0,0,0.3);
}

nav {
  text-align: center;
  margin-top: 1rem;
}

nav a {
  margin: 0 1rem;
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--gelbgruen);
}

footer {
  text-align: center;
  margin-top: auto;
  padding: 1rem;
  font-size: 0.8rem;
  color: #aaa;
}