:root {
    --bg-color: #0a0a0a;
    --text-color: #e0e0e0;
    --accent-color: #ffffff;
    --secondary-text: #a0a0a0;
    --modal-bg: rgba(20, 20, 20, 0.95);
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    opacity: 0;
    animation: fadeIn 1.5s ease-out forwards;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--text-color);
    text-decoration: none;
    letter-spacing: -0.05em;
    opacity: 0.8;
    transition: opacity var(--transition-speed);
}

.logo:hover {
    opacity: 1;
}

main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    background: linear-gradient(to right, #fff, #888);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--secondary-text);
    font-weight: 300;
    margin-bottom: 2rem;
}

button {
    background: transparent;
    border: 1px solid var(--secondary-text);
    color: var(--text-color);
    padding: 0.8rem 1.5rem;
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    border-radius: 4px;
}

button:hover {
    background: var(--text-color);
    color: var(--bg-color);
    border-color: var(--text-color);
}

.btn-group {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

footer {
    text-align: center;
    padding-top: 1rem;
}

#impressum-toggle {
    border: none;
    font-size: 0.8rem;
    color: var(--secondary-text);
    padding: 0.5rem;
    opacity: 0.5;
}

#impressum-toggle:hover {
    background: transparent;
    color: var(--text-color);
    opacity: 1;
    text-decoration: underline;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed);
    backdrop-filter: blur(5px);
}

.modal.visible {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: #1a1a1a;
    padding: 3rem;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    position: relative;
    border: 1px solid #333;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform var(--transition-speed);
}

.modal.visible .modal-content {
    transform: scale(1);
}


.close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-text);
    transition: color 0.2s;
}

.close:hover {
    color: var(--text-color);
}

.modal h2 {
    font-weight: 300;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #333;
    padding-bottom: 0.5rem;
}

.modal p {
    color: var(--secondary-text);
    line-height: 1.6;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 600px) {
    .container {
        padding: 1.5rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .btn-group {
        gap: 1rem;
        width: 100%;
        padding: 0 1rem;
    }

    .btn-group button {
        flex: 1 1 calc(50% - 1rem);
        min-width: 0;
    }

    .modal-content {
        padding: 2rem;
    }
}