body {
    background: #fafaff;
    font-family: 'Segoe UI', 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#app {
    width: 100vw;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.song-changer-container {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 32px rgba(80, 0, 200, 0.08);
    padding: 40px 32px 48px 32px;
    margin-top: 40px;
    max-width: 700px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.song-changer-title {
    color: #7b2ff2;
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.song-changer-title .icon {
    font-size: 2.2rem;
}

.song-changer-subtitle {
    color: #555;
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.upload-section {
    width: 100%;
    margin-bottom: 1.5rem;
}

.upload-label {
    font-weight: 600;
    color: #222;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

input[type="file"] {
    width: 100%;
    padding: 8px;
    border-radius: 8px;
    border: 1px solid #ddd;
    margin-bottom: 0.5rem;
}

.upload-desc {
    color: #888;
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
}

.lyrics-section {
    width: 100%;
    margin-bottom: 1.5rem;
}

.lyrics-label {
    font-weight: 600;
    color: #222;
    margin-bottom: 0.5rem;
}

.lyrics-textarea {
    width: 100%;
    min-height: 120px;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
    padding: 18px;
    font-size: 1.1rem;
    resize: vertical;
    background: #f8f8ff;
    margin-bottom: 0.8rem;
}

.enhance-btn {
    background: #fff;
    color: #7b2ff2;
    border: 1px solid #7b2ff2;
    border-radius: 8px;
    padding: 8px 18px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    margin-bottom: 1.5rem;
}

.enhance-btn:hover {
    background: #7b2ff2;
    color: #fff;
}

.generate-btn {
    background: #7b2ff2;
    color: #fff;
    border: none;
    border-radius: 32px;
    padding: 18px 48px;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(123, 47, 242, 0.12);
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    transition: background 0.2s;
}

.generate-btn:hover {
    background: #5f1bb7;
}

@media (max-width: 800px) {
    .song-changer-container {
        padding: 24px 8px 32px 8px;
        max-width: 98vw;
    }
    .song-changer-title {
        font-size: 2rem;
    }
    .generate-btn {
        font-size: 1.1rem;
        padding: 14px 24px;
    }
}