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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    text-align: center;
    max-width: 900px;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.title {
    font-size: 3rem;
    font-weight: bold;
    color: #333;
    margin: 0 0 2rem 0;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.sentence-display {
    font-size: 2.5rem;
    font-weight: bold;
    color: #333;
    line-height: 1.4;
    margin-bottom: 3rem;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    transition: all 0.3s ease;
}

.sentence-text {
    margin-bottom: 1.5rem;
    text-align: center;
}

.citation {
    margin-top: auto;
}

.citation a {
    color: #667eea;
    text-decoration: none;
    font-size: 1rem;
    font-weight: normal;
    padding: 0.5rem 1rem;
    border: 2px solid #667eea;
    border-radius: 25px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.citation a:hover {
    background-color: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.next-button {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: lowercase;
    letter-spacing: 1px;
    box-shadow: 0 10px 20px rgba(238, 90, 36, 0.3);
}

.next-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(238, 90, 36, 0.4);
    background: linear-gradient(45deg, #ee5a24, #ff6b6b);
}

.next-button:active {
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .title {
        font-size: 2rem;
        letter-spacing: 2px;
        margin-bottom: 1.5rem;
    }
    
    .sentence-display {
        font-size: 1.8rem;
        min-height: 150px;
        padding: 1rem;
    }
    
    .sentence-text {
        margin-bottom: 1rem;
    }
    
    .citation a {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
    
    .container {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .next-button {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}