:root {
    --primary-color: #FFFFFF;
    --background-color: #000000;
    --accent-color: #00FFFF; /* Cyan/Türkis als Akzentfarbe */
    --container-bg: #1A1A1A;
    --border-color: #333;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: var(--primary-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    text-align: center;
}

main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    max-width: 800px;
    width: 100%;
    box-sizing: border-box;
    margin: 0 auto;
}

h1, h2 {
    font-weight: 300;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 0;
    margin-bottom: 20px;
}

p {
    line-height: 1.6;
    margin: 0 0 20px 0;
}

/* --- Header --- */
header {
    width: 100%;
    padding: 20px;
    box-sizing: border-box;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-container {
    width: 100%;
    max-width: 240px;
    display: flex;
    flex-direction: column; /* Stacking logo and nav */
    align-items: center; /* Centering items */
    gap: 20px; /* Space between logo and nav */
}

.logo-header {
    height: 240px; /* Increased logo size */
    width: auto;
}

.main-nav a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 18px;
    padding: 5px 10px;
    border-radius: 5px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.main-nav a:hover {
    background-color: var(--accent-color);
    color: var(--background-color);
}

/* --- Main Content --- */
.logo-main {
    max-width: 400px;
    margin-bottom: 40px;
}

.content-section {
    width: 100%;
    padding: 30px;
    margin-bottom: 20px;
    background-color: var(--container-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

/* --- Email Form --- */
.email-form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.email-form input[type="email"] {
    width: 100%;
    padding: 15px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: #222;
    color: var(--primary-color);
    font-size: 16px;
    box-sizing: border-box;
}

/* --- Buttons --- */
.button {
    display: inline-block;
    padding: 15px 30px;
    margin: 5px;
    border: 1px solid var(--accent-color);
    border-radius: 5px;
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    color: var(--accent-color);
    background-color: transparent;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
    text-transform: uppercase;
}

.button:hover {
    background-color: var(--accent-color);
    color: var(--background-color);
}

.button-primary {
    background-color: var(--accent-color);
    color: var(--background-color);
}

.button-primary:hover {
    background-color: transparent;
    color: var(--accent-color);
}

/* --- Footer --- */
footer {
    width: 100%;
    padding: 30px 20px;
    box-sizing: border-box;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
    text-align: center;
}

.footer-links, .social-media {
    margin-bottom: 15px;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-color);
}

/* --- URL Message --- */
.url-message-container {
    display: none; /* Hidden by default */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--accent-color);
    color: var(--background-color);
    text-align: center;
    padding: 15px;
    z-index: 1000;
    font-weight: bold;
}

.url-message-container .close-btn {
    position: absolute;
    top: 5px;
    right: 15px;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
}