:root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --card-bg: #1e1e1e;
    --button-bg: linear-gradient(135deg, #bb86fc, #9d4edd);
    --button-hover: linear-gradient(135deg, #9d4edd, #7b2cbf);
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
    --border-radius: 16px;
}

body.dark {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --card-bg: #1e1e1e;
    --button-bg: linear-gradient(135deg, #bb86fc, #9d4edd);
    --button-hover: linear-gradient(135deg, #9d4edd, #7b2cbf);
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 20px;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.header {
    text-align: center;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.header h1 {
    font-size: 1.8em;
    font-weight: 500;
    margin: 0;
    color: #bb86fc;
}

.zitate {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.zitat-container {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: box-shadow 0.3s, transform 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.zitat-container.fade-in {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.zitat-container:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.5);
    transform: translateY(-5px);
}

.zitat-container h1 {
    font-size: 1.2em;
    font-weight: 400;
    margin-bottom: 15px;
}

.zitat-container select {
    width: 100%;
    padding: 12px;
    font-size: 1em;
    font-weight: 400;
    min-height: 48px;
    border: 1px solid #ccc;
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.zitat-container select:focus {
    outline: none;
    border-color: #bb86fc;
    box-shadow: 0 0 8px rgba(187, 134, 252, 0.5);
}

.controls {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 20px;
}

.controls button {
    flex: 1;
    padding: 15px 30px;
    font-size: 1.1em;
    font-weight: 500;
    min-height: 48px;
    background: var(--button-bg);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
    box-shadow: var(--shadow);
}

.controls button:hover {
    background: var(--button-hover);
    box-shadow: 0 6px 20px rgba(0,0,0,0.5);
    transform: translateY(-2px);
}

.controls button:active {
    transform: translateY(0);
}

/* Mobile-first Media Query für kleine Bildschirme (<600px) */
@media (max-width: 600px) {
    body {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 1.5em;
    }
    
    .zitat-container h1 {
        font-size: 1em;
    }
    
    .zitat-container select {
        font-size: 0.9em;
    }
    
    .controls {
        flex-direction: column;
    }
    
    .controls button {
        width: 100%;
        margin: 10px 0;
    }
}